diff options
Diffstat (limited to 'drivers/acpi')
195 files changed, 8252 insertions, 4044 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 93d2c7971df6..746411518802 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -360,4 +360,13 @@ config ACPI_SBS To compile this driver as a module, choose M here: the modules will be called sbs and sbshc. +config ACPI_HED + tristate "Hardware Error Device" + help + This driver supports the Hardware Error Device (PNP0C33), + which is used to report some hardware errors notified via + SCI, mainly the corrected errors. + +source "drivers/acpi/apei/Kconfig" + endif # ACPI diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 66cc3f36a954..6ee33169e1dc 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -19,7 +19,7 @@ obj-y += acpi.o \ # All the builtin files are in the "acpi." module_param namespace. acpi-y += osl.o utils.o reboot.o -acpi-y += hest.o +acpi-y += atomicio.o # sleep related files acpi-y += wakeup.o @@ -32,7 +32,7 @@ acpi-$(CONFIG_ACPI_SLEEP) += proc.o # acpi-y += bus.o glue.o acpi-y += scan.o -acpi-y += processor_pdc.o +acpi-y += processor_core.o acpi-y += ec.o acpi-$(CONFIG_ACPI_DOCK) += dock.o acpi-y += pci_root.o pci_link.o pci_irq.o pci_bind.o @@ -59,10 +59,13 @@ obj-$(CONFIG_ACPI_BATTERY) += battery.o obj-$(CONFIG_ACPI_SBS) += sbshc.o obj-$(CONFIG_ACPI_SBS) += sbs.o obj-$(CONFIG_ACPI_POWER_METER) += power_meter.o +obj-$(CONFIG_ACPI_HED) += hed.o # processor has its own "processor." module_param namespace -processor-y := processor_core.o processor_throttling.o +processor-y := processor_driver.o processor_throttling.o processor-y += processor_idle.o processor_thermal.o processor-$(CONFIG_CPU_FREQ) += processor_perflib.o obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o + +obj-$(CONFIG_ACPI_APEI) += apei/ diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index b6ed60b57b0d..56205a0b85df 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -25,6 +25,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/types.h> #ifdef CONFIG_ACPI_PROCFS_POWER diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 3597d73f28f6..d98571385656 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -30,6 +30,7 @@ #include <linux/init.h> #include <linux/types.h> #include <linux/memory_hotplug.h> +#include <linux/slab.h> #include <acpi/acpi_drivers.h> #define ACPI_MEMORY_DEVICE_CLASS "memory" diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index 7e52295f1ecc..446aced33aff 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -27,10 +27,11 @@ #include <linux/freezer.h> #include <linux/cpu.h> #include <linux/clockchips.h> +#include <linux/slab.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> -#define ACPI_PROCESSOR_AGGREGATOR_CLASS "processor_aggregator" +#define ACPI_PROCESSOR_AGGREGATOR_CLASS "acpi_pad" #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" #define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80 static DEFINE_MUTEX(isolated_cpus_lock); @@ -42,6 +43,12 @@ static DEFINE_MUTEX(isolated_cpus_lock); #define CPUID5_ECX_EXTENSIONS_SUPPORTED (0x1) #define CPUID5_ECX_INTERRUPT_BREAK (0x2) static unsigned long power_saving_mwait_eax; + +static unsigned char tsc_detected_unstable; +static unsigned char tsc_marked_unstable; +static unsigned char lapic_detected_unstable; +static unsigned char lapic_marked_unstable; + static void power_saving_mwait_init(void) { unsigned int eax, ebx, ecx, edx; @@ -70,9 +77,6 @@ static void power_saving_mwait_init(void) power_saving_mwait_eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) | (highest_subcstate - 1); - for_each_online_cpu(i) - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &i); - #if defined(CONFIG_GENERIC_TIME) && defined(CONFIG_X86) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -81,13 +85,15 @@ static void power_saving_mwait_init(void) * AMD Fam10h TSC will tick in all * C/P/S0/S1 states when this bit is set. */ - if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) - return; - - /*FALL THROUGH*/ + if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) + tsc_detected_unstable = 1; + if (!boot_cpu_has(X86_FEATURE_ARAT)) + lapic_detected_unstable = 1; + break; default: - /* TSC could halt in idle, so notify users */ - mark_tsc_unstable("TSC halts in idle"); + /* TSC & LAPIC could halt in idle */ + tsc_detected_unstable = 1; + lapic_detected_unstable = 1; } #endif } @@ -167,20 +173,28 @@ static int power_saving_thread(void *data) do_sleep = 0; - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we test - * NEED_RESCHED: - */ - smp_mb(); - expire_time = jiffies + HZ * (100 - idle_pct) / 100; while (!need_resched()) { + if (tsc_detected_unstable && !tsc_marked_unstable) { + /* TSC could halt in idle, so notify users */ + mark_tsc_unstable("TSC halts in idle"); + tsc_marked_unstable = 1; + } + if (lapic_detected_unstable && !lapic_marked_unstable) { + int i; + /* LAPIC could halt in idle, so notify users */ + for_each_online_cpu(i) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ON, + &i); + lapic_marked_unstable = 1; + } local_irq_disable(); cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); stop_critical_timings(); __monitor((void *)¤t_thread_info()->flags, 0, 0); @@ -189,8 +203,9 @@ static int power_saving_thread(void *data) __mwait(power_saving_mwait_eax, 1); start_critical_timings(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); local_irq_enable(); if (jiffies > expire_time) { @@ -199,8 +214,6 @@ static int power_saving_thread(void *data) } } - current_thread_info()->status |= TS_POLLING; - /* * current sched_rt has threshold for rt task running time. * When a rt task uses 95% CPU time, the rt thread will be diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 7423052ece5a..d93cc06f4bf8 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -14,12 +14,12 @@ acpi-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \ acpi-y += evevent.o evregion.o evsci.o evxfevnt.o \ evmisc.o evrgnini.o evxface.o evxfregn.o \ - evgpe.o evgpeblk.o + evgpe.o evgpeblk.o evgpeinit.o evgpeutil.o acpi-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\ exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\ excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \ - exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o + exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o exdebug.o acpi-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o hwvalid.o diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h index 3b20786cbb0d..3e50c74ed4a1 100644 --- a/drivers/acpi/acpica/accommon.h +++ b/drivers/acpi/acpica/accommon.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index a4471e3d3853..b17d8de9f6ff 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -119,6 +119,10 @@ #define ACPI_MAX_LOOP_ITERATIONS 0xFFFF +/* Maximum sleep allowed via Sleep() operator */ + +#define ACPI_MAX_SLEEP 20000 /* Two seconds */ + /****************************************************************************** * * ACPI Specification constants (Do not change unless the specification changes) diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index a4fb001d96f1..48faf3eba9fb 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h index 6291904be01e..894a0ff2a946 100644 --- a/drivers/acpi/acpica/acdispat.h +++ b/drivers/acpi/acpica/acdispat.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 0bba148a2c61..c3f43daa8be3 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -73,34 +73,23 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node, u32 notify_value); /* - * evgpe - GPE handling and dispatch + * evgpe - Low-level GPE support */ -acpi_status -acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, - u8 type); +u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list); acpi_status -acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, - u8 write_to_hardware); - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); +acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info); struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, u32 gpe_number); +struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number, + struct acpi_gpe_block_info + *gpe_block); + /* - * evgpeblk + * evgpeblk - Upper-level GPE block support */ -u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info); - -acpi_status -acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context); - -acpi_status -acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, - void *context); - acpi_status acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, struct acpi_generic_address *gpe_block_address, @@ -119,15 +108,37 @@ u32 acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number); -u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list); +/* + * evgpeinit - GPE initialization and update + */ +acpi_status acpi_ev_gpe_initialize(void); + +void acpi_ev_update_gpes(acpi_owner_id table_owner_id); acpi_status -acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type); +acpi_ev_match_gpe_method(acpi_handle obj_handle, + u32 level, void *context, void **return_value); acpi_status -acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info); +acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, + u32 level, void *context, void **return_value); -acpi_status acpi_ev_gpe_initialize(void); +/* + * evgpeutil - GPE utilities + */ +acpi_status +acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context); + +u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info); + +struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number); + +acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); + +acpi_status +acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *context); /* * evregion - Address Space handling @@ -139,8 +150,7 @@ acpi_status acpi_ev_initialize_op_regions(void); acpi_status acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, u32 function, - u32 region_offset, - u32 bit_width, acpi_integer * value); + u32 region_offset, u32 bit_width, u64 *value); acpi_status acpi_ev_attach_region(union acpi_operand_object *handler_obj, diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 29ba66d5a790..899d68afc3c5 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -112,6 +112,27 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE); */ u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); +/* + * Optionally enable output from the AML Debug Object. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); + +/* + * Optionally copy the entire DSDT to local memory (instead of simply + * mapping it.) There are some BIOSs that corrupt or replace the original + * DSDT, creating the need for this option. Default is FALSE, do not copy + * the DSDT. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); + +/* + * Optionally truncate I/O addresses to 16 bits. Provides compatibility + * with other ACPI implementations. NOTE: During ACPICA initialization, + * this value is set to TRUE if any Windows OSI strings have been + * requested by the BIOS. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE); + /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ struct acpi_table_fadt acpi_gbl_FADT; @@ -145,11 +166,10 @@ ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; ****************************************************************************/ /* - * acpi_gbl_root_table_list is the master list of ACPI tables found in the - * RSDT/XSDT. - * + * acpi_gbl_root_table_list is the master list of ACPI tables that were + * found in the RSDT/XSDT. */ -ACPI_EXTERN struct acpi_internal_rsdt acpi_gbl_root_table_list; +ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list; ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; /* These addresses are calculated from the FADT Event Block addresses */ @@ -160,6 +180,11 @@ ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; +/* DSDT information. Used to check for DSDT corruption */ + +ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT; +ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header; + /* * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is * determined by the revision of the DSDT: If the DSDT revision is less than diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 36192f142fbb..32391588e163 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -90,7 +90,11 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width); /* * hwgpe - GPE support */ -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info); + +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action); acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info); diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index 5db9f2916f7c..049e203bd621 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -121,6 +121,13 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, struct acpi_walk_state *walk_state); /* + * exdebug - AML debug object + */ +void +acpi_ex_do_debug_object(union acpi_operand_object *source_desc, + u32 level, u32 index); + +/* * exfield - ACPI AML (p-code) execution - field manipulation */ acpi_status @@ -129,18 +136,17 @@ acpi_ex_common_buffer_setup(union acpi_operand_object *obj_desc, acpi_status acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, - acpi_integer mask, - acpi_integer field_value, - u32 field_datum_byte_offset); + u64 mask, + u64 field_value, u32 field_datum_byte_offset); void -acpi_ex_get_buffer_datum(acpi_integer * datum, +acpi_ex_get_buffer_datum(u64 *datum, void *buffer, u32 buffer_length, u32 byte_granularity, u32 buffer_offset); void -acpi_ex_set_buffer_datum(acpi_integer merged_datum, +acpi_ex_set_buffer_datum(u64 merged_datum, void *buffer, u32 buffer_length, u32 byte_granularity, u32 buffer_offset); @@ -168,8 +174,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, acpi_status acpi_ex_access_region(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 read_write); + u32 field_datum_byte_offset, u64 *value, u32 read_write); /* * exmisc - misc support routines @@ -193,16 +198,14 @@ acpi_ex_do_concatenate(union acpi_operand_object *obj_desc, acpi_status acpi_ex_do_logical_numeric_op(u16 opcode, - acpi_integer integer0, - acpi_integer integer1, u8 * logical_result); + u64 integer0, u64 integer1, u8 *logical_result); acpi_status acpi_ex_do_logical_op(u16 opcode, union acpi_operand_object *operand0, - union acpi_operand_object *operand1, u8 * logical_result); + union acpi_operand_object *operand1, u8 *logical_result); -acpi_integer -acpi_ex_do_math_op(u16 opcode, acpi_integer operand0, acpi_integer operand1); +u64 acpi_ex_do_math_op(u16 opcode, u64 operand0, u64 operand1); acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state); @@ -278,7 +281,7 @@ acpi_status acpi_ex_system_do_notify_op(union acpi_operand_object *value, union acpi_operand_object *obj_desc); -acpi_status acpi_ex_system_do_suspend(acpi_integer time); +acpi_status acpi_ex_system_do_sleep(u64 time); acpi_status acpi_ex_system_do_stall(u32 time); @@ -461,9 +464,9 @@ void acpi_ex_acquire_global_lock(u32 rule); void acpi_ex_release_global_lock(u32 rule); -void acpi_ex_eisa_id_to_string(char *dest, acpi_integer compressed_id); +void acpi_ex_eisa_id_to_string(char *dest, u64 compressed_id); -void acpi_ex_integer_to_string(char *dest, acpi_integer value); +void acpi_ex_integer_to_string(char *dest, u64 value); /* * exregion - default op_region handlers @@ -472,7 +475,7 @@ acpi_status acpi_ex_system_memory_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); @@ -480,35 +483,35 @@ acpi_status acpi_ex_system_io_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); acpi_status acpi_ex_pci_config_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); acpi_status acpi_ex_cmos_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); acpi_status acpi_ex_pci_bar_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); acpi_status acpi_ex_embedded_controller_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); @@ -516,14 +519,14 @@ acpi_status acpi_ex_sm_bus_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); acpi_status acpi_ex_data_table_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context); #endif /* __INTERP_H__ */ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 81e64f478679..147a7e6bd38f 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -213,12 +213,12 @@ struct acpi_namespace_node { #define ANOBJ_IS_BIT_OFFSET 0x40 /* i_aSL only: Reference is a bit offset */ #define ANOBJ_IS_REFERENCED 0x80 /* i_aSL only: Object was referenced */ -/* One internal RSDT for table management */ +/* Internal ACPI table management - master table list */ -struct acpi_internal_rsdt { - struct acpi_table_desc *tables; - u32 count; - u32 size; +struct acpi_table_list { + struct acpi_table_desc *tables; /* Table descriptor array */ + u32 current_table_count; /* Tables currently in the array */ + u32 max_table_count; /* Max tables array will hold */ u8 flags; }; @@ -374,6 +374,7 @@ union acpi_predefined_info { struct acpi_predefined_data { char *pathname; const union acpi_predefined_info *predefined; + union acpi_operand_object *parent_package; u32 flags; u8 node_flags; }; @@ -426,6 +427,8 @@ struct acpi_gpe_event_info { struct acpi_gpe_register_info *register_info; /* Backpointer to register info */ u8 flags; /* Misc info about this GPE */ u8 gpe_number; /* This GPE */ + u8 runtime_count; /* References to a run GPE */ + u8 wakeup_count; /* References to a wake GPE */ }; /* Information about a GPE register pair, one per each status/enable pair in an array */ @@ -451,6 +454,7 @@ struct acpi_gpe_block_info { struct acpi_gpe_event_info *event_info; /* One for each GPE */ struct acpi_generic_address block_address; /* Base address of the block */ u32 register_count; /* Number of register pairs in block */ + u16 gpe_count; /* Number of individual GPEs in block */ u8 block_base_number; /* Base GPE number for this block */ }; @@ -466,6 +470,10 @@ struct acpi_gpe_xrupt_info { struct acpi_gpe_walk_info { struct acpi_namespace_node *gpe_device; struct acpi_gpe_block_info *gpe_block; + u16 count; + acpi_owner_id owner_id; + u8 enable_this_gpe; + u8 execute_by_owner_id; }; struct acpi_gpe_device_info { @@ -649,8 +657,7 @@ struct acpi_opcode_info { }; union acpi_parse_value { - acpi_integer integer; /* Integer constant (Up to 64 bits) */ - struct uint64_struct integer64; /* Structure overlay for 2 32-bit Dwords */ + u64 integer; /* Integer constant (Up to 64 bits) */ u32 size; /* bytelist or field size */ char *string; /* NULL terminated string */ u8 *buffer; /* buffer or string */ diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 7d9ba6e57554..9894929a2abb 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -272,8 +272,8 @@ * MASK_BITS_ABOVE creates a mask starting AT the position and above * MASK_BITS_BELOW creates a mask starting one bit BELOW the position */ -#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_INTEGER_MAX) << ((u32) (position)))) -#define ACPI_MASK_BITS_BELOW(position) ((ACPI_INTEGER_MAX) << ((u32) (position))) +#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position)))) +#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position))) /* Bitfields within ACPI registers */ @@ -414,16 +414,16 @@ acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \ return (_s); }) #define return_VALUE(s) ACPI_DO_WHILE0 ({ \ - register acpi_integer _s = (s); \ + register u64 _s = (s); \ acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \ return (_s); }) #define return_UINT8(s) ACPI_DO_WHILE0 ({ \ register u8 _s = (u8) (s); \ - acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \ + acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \ return (_s); }) #define return_UINT32(s) ACPI_DO_WHILE0 ({ \ register u32 _s = (u32) (s); \ - acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \ + acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \ return (_s); }) #else /* Use original less-safe macros */ @@ -434,7 +434,7 @@ acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \ return((s)); }) #define return_VALUE(s) ACPI_DO_WHILE0 ({ \ - acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) (s)); \ + acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) (s)); \ return((s)); }) #define return_UINT8(s) return_VALUE(s) #define return_UINT32(s) return_VALUE(s) diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 61edb156e8d0..258159cfcdfa 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -286,6 +286,17 @@ acpi_status acpi_ns_repair_package_list(struct acpi_predefined_data *data, union acpi_operand_object **obj_desc_ptr); +acpi_status +acpi_ns_repair_null_element(struct acpi_predefined_data *data, + u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr); + +void +acpi_ns_remove_null_elements(struct acpi_predefined_data *data, + u8 package_type, + union acpi_operand_object *obj_desc); + /* * nsrepair2 - Return object repair for specific * predefined methods/objects @@ -296,11 +307,6 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data, acpi_status validate_status, union acpi_operand_object **return_object_ptr); -void -acpi_ns_remove_null_elements(struct acpi_predefined_data *data, - u8 package_type, - union acpi_operand_object *obj_desc); - /* * nssearch - Namespace searching and entry */ diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index 64062b1be3ee..cde18ea82656 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -111,7 +111,7 @@ ACPI_OBJECT_COMMON_HEADER}; struct acpi_object_integer { ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */ - acpi_integer value; + u64 value; }; /* @@ -287,8 +287,10 @@ struct acpi_object_buffer_field { struct acpi_object_notify_handler { ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */ + u32 handler_type; acpi_notify_handler handler; void *context; + struct acpi_object_notify_handler *next; }; struct acpi_object_addr_handler { diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h index dfdf63327885..8c15ff43f42b 100644 --- a/drivers/acpi/acpica/acopcode.h +++ b/drivers/acpi/acpica/acopcode.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 22881e8ce229..d0bb0fd3e57a 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h index 57bdaf6ffab1..97116082cb6c 100644 --- a/drivers/acpi/acpica/acpredef.h +++ b/drivers/acpi/acpica/acpredef.h @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index eef5bd7a59fa..528bcbaf4ce7 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h index 7980a26bad35..161bc0e3d70a 100644 --- a/drivers/acpi/acpica/acstruct.h +++ b/drivers/acpi/acpica/acstruct.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index 01c76b8ea7ba..62a576e34361 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -107,6 +107,10 @@ u8 acpi_tb_checksum(u8 *buffer, u32 length); acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length); +void acpi_tb_check_dsdt_header(void); + +struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index); + void acpi_tb_install_table(acpi_physical_address address, char *signature, u32 table_index); diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 3a451a21a3f9..35df755251ce 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -134,7 +134,7 @@ char *acpi_ut_get_region_name(u8 space_id); char *acpi_ut_get_event_name(u32 event_id); -char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position); +char acpi_ut_hex_to_ascii_char(u64 integer, u32 position); u8 acpi_ut_valid_object_type(acpi_object_type type); @@ -279,8 +279,7 @@ acpi_ut_status_exit(u32 line_number, void acpi_ut_value_exit(u32 line_number, const char *function_name, - const char *module_name, - u32 component_id, acpi_integer value); + const char *module_name, u32 component_id, u64 value); void acpi_ut_ptr_exit(u32 line_number, @@ -324,7 +323,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, acpi_status acpi_ut_evaluate_numeric_object(char *object_name, struct acpi_namespace_node *device_node, - acpi_integer *value); + u64 *value); acpi_status acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags); @@ -437,14 +436,12 @@ void acpi_ut_delete_generic_state(union acpi_generic_state *state); * utmath */ acpi_status -acpi_ut_divide(acpi_integer in_dividend, - acpi_integer in_divisor, - acpi_integer * out_quotient, acpi_integer * out_remainder); +acpi_ut_divide(u64 in_dividend, + u64 in_divisor, u64 *out_quotient, u64 *out_remainder); acpi_status -acpi_ut_short_divide(acpi_integer in_dividend, - u32 divisor, - acpi_integer * out_quotient, u32 * out_remainder); +acpi_ut_short_divide(u64 in_dividend, + u32 divisor, u64 *out_quotient, u32 *out_remainder); /* * utmisc @@ -474,8 +471,7 @@ acpi_name acpi_ut_repair_name(char *name); u8 acpi_ut_valid_acpi_char(char character, u32 position); -acpi_status -acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer); +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer); void ACPI_INTERNAL_VAR_XFACE acpi_ut_predefined_warning(const char *module_name, diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index 4940249f2524..1f484ba228fc 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -7,7 +7,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h index 7b070e42b7c5..0e5798fcbb19 100644 --- a/drivers/acpi/acpica/amlresrc.h +++ b/drivers/acpi/acpica/amlresrc.h @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index 54a225e56a64..347bee1726f1 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -220,7 +220,7 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, union acpi_parse_object *arg) { acpi_status status; - acpi_integer position; + u64 position; ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info); @@ -240,8 +240,8 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, switch (arg->common.aml_opcode) { case AML_INT_RESERVEDFIELD_OP: - position = (acpi_integer) info->field_bit_position - + (acpi_integer) arg->common.value.size; + position = (u64) info->field_bit_position + + (u64) arg->common.value.size; if (position > ACPI_UINT32_MAX) { ACPI_ERROR((AE_INFO, @@ -305,8 +305,8 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, /* Keep track of bit position for the next field */ - position = (acpi_integer) info->field_bit_position - + (acpi_integer) arg->common.value.size; + position = (u64) info->field_bit_position + + (u64) arg->common.value.size; if (position > ACPI_UINT32_MAX) { ACPI_ERROR((AE_INFO, @@ -323,7 +323,7 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, default: ACPI_ERROR((AE_INFO, - "Invalid opcode in field list: %X", + "Invalid opcode in field list: 0x%X", arg->common.aml_opcode)); return_ACPI_STATUS(AE_AML_BAD_OPCODE); } diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index f23fa0be6fc2..abe140318a74 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index e786f9fd767f..2a9a561c2f01 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -225,7 +225,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, (walk_state->thread->current_sync_level > obj_desc->method.mutex->mutex.sync_level)) { ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)", + "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%u)", acpi_ut_get_node_name(method_node), walk_state->thread->current_sync_level)); diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c index 0ba19f84ad82..f3d52f59250b 100644 --- a/drivers/acpi/acpica/dsmthdat.c +++ b/drivers/acpi/acpica/dsmthdat.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -262,7 +262,7 @@ acpi_ds_method_data_get_node(u8 type, if (index > ACPI_METHOD_MAX_LOCAL) { ACPI_ERROR((AE_INFO, - "Local index %d is invalid (max %d)", + "Local index %u is invalid (max %u)", index, ACPI_METHOD_MAX_LOCAL)); return_ACPI_STATUS(AE_AML_INVALID_INDEX); } @@ -276,7 +276,7 @@ acpi_ds_method_data_get_node(u8 type, if (index > ACPI_METHOD_MAX_ARG) { ACPI_ERROR((AE_INFO, - "Arg index %d is invalid (max %d)", + "Arg index %u is invalid (max %u)", index, ACPI_METHOD_MAX_ARG)); return_ACPI_STATUS(AE_AML_INVALID_INDEX); } @@ -287,7 +287,7 @@ acpi_ds_method_data_get_node(u8 type, break; default: - ACPI_ERROR((AE_INFO, "Type %d is invalid", type)); + ACPI_ERROR((AE_INFO, "Type %u is invalid", type)); return_ACPI_STATUS(AE_TYPE); } @@ -424,7 +424,7 @@ acpi_ds_method_data_get_value(u8 type, case ACPI_REFCLASS_ARG: ACPI_ERROR((AE_INFO, - "Uninitialized Arg[%d] at node %p", + "Uninitialized Arg[%u] at node %p", index, node)); return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); @@ -440,7 +440,7 @@ acpi_ds_method_data_get_value(u8 type, default: ACPI_ERROR((AE_INFO, - "Not a Arg/Local opcode: %X", + "Not a Arg/Local opcode: 0x%X", type)); return_ACPI_STATUS(AE_AML_INTERNAL); } diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c index 9bc1ba076347..3607adcaf085 100644 --- a/drivers/acpi/acpica/dsobject.c +++ b/drivers/acpi/acpica/dsobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -288,7 +288,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, if (byte_list) { if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) { ACPI_ERROR((AE_INFO, - "Expecting bytelist, got AML opcode %X in op %p", + "Expecting bytelist, found AML opcode 0x%X in op %p", byte_list->common.aml_opcode, byte_list)); acpi_ut_remove_reference(obj_desc); @@ -511,7 +511,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, } ACPI_INFO((AE_INFO, - "Actual Package length (0x%X) is larger than NumElements field (0x%X), truncated\n", + "Actual Package length (%u) is larger than NumElements field (%u), truncated\n", i, element_count)); } else if (i < element_count) { /* @@ -519,7 +519,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, * Note: this is not an error, the package is padded out with NULLs. */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Package List length (0x%X) smaller than NumElements count (0x%X), padded with null elements\n", + "Package List length (%u) smaller than NumElements count (%u), padded with null elements\n", i, element_count)); } @@ -684,7 +684,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, case AML_ONES_OP: - obj_desc->integer.value = ACPI_INTEGER_MAX; + obj_desc->integer.value = ACPI_UINT64_MAX; /* Truncate value if we are executing from a 32-bit ACPI table */ @@ -701,7 +701,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, default: ACPI_ERROR((AE_INFO, - "Unknown constant opcode %X", + "Unknown constant opcode 0x%X", opcode)); status = AE_AML_OPERAND_TYPE; break; @@ -717,7 +717,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, break; default: - ACPI_ERROR((AE_INFO, "Unknown Integer type %X", + ACPI_ERROR((AE_INFO, "Unknown Integer type 0x%X", op_info->type)); status = AE_AML_OPERAND_TYPE; break; @@ -806,7 +806,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, default: ACPI_ERROR((AE_INFO, - "Unimplemented reference type for AML opcode: %4.4X", + "Unimplemented reference type for AML opcode: 0x%4.4X", opcode)); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } @@ -816,7 +816,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, default: - ACPI_ERROR((AE_INFO, "Unimplemented data type: %X", + ACPI_ERROR((AE_INFO, "Unimplemented data type: 0x%X", obj_desc->common.type)); status = AE_AML_OPERAND_TYPE; diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index b79978f7bc71..53a7e416f33e 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -292,7 +292,7 @@ acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc) node = obj_desc->buffer.node; if (!node) { ACPI_ERROR((AE_INFO, - "No pointer back to NS node in buffer obj %p", + "No pointer back to namespace node in buffer object %p", obj_desc)); return_ACPI_STATUS(AE_AML_INTERNAL); } @@ -336,7 +336,7 @@ acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc) node = obj_desc->package.node; if (!node) { ACPI_ERROR((AE_INFO, - "No pointer back to NS node in package %p", + "No pointer back to namespace node in package %p", obj_desc)); return_ACPI_STATUS(AE_AML_INTERNAL); } @@ -580,7 +580,8 @@ acpi_ds_init_buffer_field(u16 aml_opcode, default: ACPI_ERROR((AE_INFO, - "Unknown field creation opcode %02x", aml_opcode)); + "Unknown field creation opcode 0x%02X", + aml_opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; } @@ -589,7 +590,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode, if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) { ACPI_ERROR((AE_INFO, - "Field [%4.4s] at %d exceeds Buffer [%4.4s] size %d (bits)", + "Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)", acpi_ut_get_node_name(result_desc), bit_offset + bit_count, acpi_ut_get_node_name(buffer_desc->buffer.node), @@ -693,7 +694,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, status = acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS, walk_state); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)", + ACPI_ERROR((AE_INFO, "(%s) bad operand(s), status 0x%X", acpi_ps_get_opcode_name(op->common.aml_opcode), status)); @@ -1461,7 +1462,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, default: - ACPI_ERROR((AE_INFO, "Unknown control opcode=%X Op=%p", + ACPI_ERROR((AE_INFO, "Unknown control opcode=0x%X Op=%p", op->common.aml_opcode, op)); status = AE_AML_BAD_OPCODE; diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index dfa104102926..306c62ab2e88 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index f0280856dc0e..d555b374e314 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -140,7 +140,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, if (local_obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, - "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", + "Bad predicate (not an integer) ObjDesc=%p State=%p Type=0x%X", obj_desc, walk_state, obj_desc->common.type)); status = AE_AML_OPERAND_TYPE; @@ -354,7 +354,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) op_class = walk_state->op_info->class; if (op_class == AML_CLASS_UNKNOWN) { - ACPI_ERROR((AE_INFO, "Unknown opcode %X", + ACPI_ERROR((AE_INFO, "Unknown opcode 0x%X", op->common.aml_opcode)); return_ACPI_STATUS(AE_NOT_IMPLEMENTED); } @@ -678,7 +678,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) default: ACPI_ERROR((AE_INFO, - "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", + "Unimplemented opcode, class=0x%X type=0x%X Opcode=-0x%X Op=%p", op_class, op_type, op->common.aml_opcode, op)); diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index b40513dd6a6a..140a9d002959 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c index 908645e72f03..d1e701709dac 100644 --- a/drivers/acpi/acpica/dswscope.c +++ b/drivers/acpi/acpica/dswscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c index e46c821cf572..83155dd8671e 100644 --- a/drivers/acpi/acpica/dswstate.c +++ b/drivers/acpi/acpica/dswstate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -179,7 +179,7 @@ acpi_ds_result_push(union acpi_operand_object * object, if (!object) { ACPI_ERROR((AE_INFO, - "Null Object! Obj=%p State=%p Num=%X", + "Null Object! Obj=%p State=%p Num=%u", object, walk_state, walk_state->result_count)); return (AE_BAD_PARAMETER); } @@ -223,7 +223,7 @@ static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state) if (((u32) walk_state->result_size + ACPI_RESULTS_FRAME_OBJ_NUM) > ACPI_RESULTS_OBJ_NUM_MAX) { - ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%X", + ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%u", walk_state, walk_state->result_size)); return (AE_STACK_OVERFLOW); } @@ -314,7 +314,7 @@ acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) if (walk_state->num_operands >= ACPI_OBJ_NUM_OPERANDS) { ACPI_ERROR((AE_INFO, - "Object stack overflow! Obj=%p State=%p #Ops=%X", + "Object stack overflow! Obj=%p State=%p #Ops=%u", object, walk_state, walk_state->num_operands)); return (AE_STACK_OVERFLOW); } @@ -365,7 +365,7 @@ acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) if (walk_state->num_operands == 0) { ACPI_ERROR((AE_INFO, - "Object stack underflow! Count=%X State=%p #Ops=%X", + "Object stack underflow! Count=%X State=%p #Ops=%u", pop_count, walk_state, walk_state->num_operands)); return (AE_STACK_UNDERFLOW); @@ -377,7 +377,7 @@ acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) walk_state->operands[walk_state->num_operands] = NULL; } - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%u\n", pop_count, walk_state, walk_state->num_operands)); return (AE_OK); diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c index cd55c774e882..f5795915a2e9 100644 --- a/drivers/acpi/acpica/evevent.c +++ b/drivers/acpi/acpica/evevent.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -302,7 +302,7 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event) ACPI_DISABLE_EVENT); ACPI_ERROR((AE_INFO, - "No installed handler for fixed event [%08X]", + "No installed handler for fixed event [0x%08X]", event)); return (ACPI_INTERRUPT_NOT_HANDLED); diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index afacf4416c73..7c2c336006a1 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -54,67 +54,22 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context); /******************************************************************************* * - * FUNCTION: acpi_ev_set_gpe_type - * - * PARAMETERS: gpe_event_info - GPE to set - * Type - New type - * - * RETURN: Status - * - * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run) - * - ******************************************************************************/ - -acpi_status -acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_set_gpe_type); - - /* Validate type and update register enable masks */ - - switch (type) { - case ACPI_GPE_TYPE_WAKE: - case ACPI_GPE_TYPE_RUNTIME: - case ACPI_GPE_TYPE_WAKE_RUN: - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Disable the GPE if currently enabled */ - - status = acpi_ev_disable_gpe(gpe_event_info); - - /* Clear the type bits and insert the new Type */ - - gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; - gpe_event_info->flags |= type; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * * FUNCTION: acpi_ev_update_gpe_enable_masks * * PARAMETERS: gpe_event_info - GPE to update - * Type - What to do: ACPI_GPE_DISABLE or - * ACPI_GPE_ENABLE * * RETURN: Status * - * DESCRIPTION: Updates GPE register enable masks based on the GPE type + * DESCRIPTION: Updates GPE register enable masks based upon whether there are + * references (either wake or run) to this GPE * ******************************************************************************/ acpi_status -acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, - u8 type) +acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) { struct acpi_gpe_register_info *gpe_register_info; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); @@ -123,176 +78,66 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, return_ACPI_STATUS(AE_NOT_EXIST); } - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); - /* 1) Disable case. Simply clear all enable bits */ + /* Clear the wake/run bits up front */ - if (type == ACPI_GPE_DISABLE) { - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - return_ACPI_STATUS(AE_OK); - } + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - /* 2) Enable case. Set/Clear the appropriate enable bits */ + /* Set the mask bits only if there are references to this GPE */ - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - case ACPI_GPE_TYPE_RUNTIME: - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); + if (gpe_event_info->runtime_count) { ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; + } - case ACPI_GPE_TYPE_WAKE_RUN: + if (gpe_event_info->wakeup_count) { ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); } return_ACPI_STATUS(AE_OK); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_enable_gpe - * - * PARAMETERS: gpe_event_info - GPE to enable - * write_to_hardware - Enable now, or just mark data structs - * (WAKE GPEs should be deferred) - * - * RETURN: Status - * - * DESCRIPTION: Enable a GPE based on the GPE type - * - ******************************************************************************/ - -acpi_status -acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, - u8 write_to_hardware) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_enable_gpe); - - /* Make sure HW enable masks are updated */ - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Mark wake-enabled or HW enable, or both */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /*lint -fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - - if (write_to_hardware) { - - /* Clear the GPE (of stale events), then enable it */ - - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Enable the requested runtime GPE */ - - status = acpi_hw_write_gpe_enable_reg(gpe_event_info); - } - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - return_ACPI_STATUS(AE_OK); -} /******************************************************************************* * - * FUNCTION: acpi_ev_disable_gpe + * FUNCTION: acpi_ev_low_get_gpe_info * - * PARAMETERS: gpe_event_info - GPE to disable + * PARAMETERS: gpe_number - Raw GPE number + * gpe_block - A GPE info block * - * RETURN: Status + * RETURN: A GPE event_info struct. NULL if not a valid GPE (The gpe_number + * is not within the specified GPE block) * - * DESCRIPTION: Disable a GPE based on the GPE type + * DESCRIPTION: Returns the event_info struct associated with this GPE. This is + * the low-level implementation of ev_get_gpe_event_info. * ******************************************************************************/ -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number, + struct acpi_gpe_block_info + *gpe_block) { - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_disable_gpe); + u32 gpe_index; - /* Make sure HW enable masks are updated */ - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + /* + * Validate that the gpe_number is within the specified gpe_block. + * (Two steps) + */ + if (!gpe_block || (gpe_number < gpe_block->block_base_number)) { + return (NULL); } - /* Clear the appropriate enabled flags for this GPE */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /* fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - /* Disable the requested runtime GPE */ - - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - break; - - default: - break; + gpe_index = gpe_number - gpe_block->block_base_number; + if (gpe_index >= gpe_block->gpe_count) { + return (NULL); } - /* - * Even if we don't know the GPE type, make sure that we always - * disable it. low_disable_gpe will just clear the enable bit for this - * GPE and write it. It will not write out the current GPE enable mask, - * since this may inadvertently enable GPEs too early, if a rogue GPE has - * come in during ACPICA initialization - possibly as a result of AML or - * other code that has enabled the GPE. - */ - status = acpi_hw_low_disable_gpe(gpe_event_info); - return_ACPI_STATUS(status); + return (&gpe_block->event_info[gpe_index]); } + /******************************************************************************* * * FUNCTION: acpi_ev_get_gpe_event_info @@ -314,29 +159,23 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, u32 gpe_number) { union acpi_operand_object *obj_desc; - struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_event_info *gpe_info; u32 i; ACPI_FUNCTION_ENTRY(); - /* A NULL gpe_block means use the FADT-defined GPE block(s) */ + /* A NULL gpe_device means use the FADT-defined GPE block(s) */ if (!gpe_device) { /* Examine GPE Block 0 and 1 (These blocks are permanent) */ for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) { - gpe_block = acpi_gbl_gpe_fadt_blocks[i]; - if (gpe_block) { - if ((gpe_number >= gpe_block->block_base_number) - && (gpe_number < - gpe_block->block_base_number + - (gpe_block->register_count * 8))) { - return (&gpe_block-> - event_info[gpe_number - - gpe_block-> - block_base_number]); - } + gpe_info = acpi_ev_low_get_gpe_info(gpe_number, + acpi_gbl_gpe_fadt_blocks + [i]); + if (gpe_info) { + return (gpe_info); } } @@ -353,16 +192,8 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, return (NULL); } - gpe_block = obj_desc->device.gpe_block; - - if ((gpe_number >= gpe_block->block_base_number) && - (gpe_number < - gpe_block->block_base_number + (gpe_block->register_count * 8))) { - return (&gpe_block-> - event_info[gpe_number - gpe_block->block_base_number]); - } - - return (NULL); + return (acpi_ev_low_get_gpe_info + (gpe_number, obj_desc->device.gpe_block)); } /******************************************************************************* @@ -519,10 +350,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) return_VOID; } - /* Set the GPE flags for return to enabled state */ - - (void)acpi_ev_enable_gpe(gpe_event_info, FALSE); - /* * Take a snapshot of the GPE info for this level - we copy the info to * prevent a race condition with remove_handler/remove_block. @@ -629,7 +456,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) status = acpi_hw_clear_gpe(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE[%2X]", + "Unable to clear GPE[0x%2X]", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } @@ -662,7 +489,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) status = acpi_hw_clear_gpe(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE[%2X]", + "Unable to clear GPE[0x%2X]", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } @@ -675,10 +502,10 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Disable the GPE, so it doesn't keep firing before the method has a * chance to run (it runs asynchronously with interrupts enabled). */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to disable GPE[%2X]", + "Unable to disable GPE[0x%2X]", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } @@ -692,27 +519,30 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to queue handler for GPE[%2X] - event disabled", + "Unable to queue handler for GPE[0x%2X] - event disabled", gpe_number)); } break; default: - /* No handler or method to run! */ - + /* + * No handler or method to run! + * 03/2010: This case should no longer be possible. We will not allow + * a GPE to be enabled if it has no handler or method. + */ ACPI_ERROR((AE_INFO, - "No handler or method for GPE[%2X], disabling event", + "No handler or method for GPE[0x%2X], disabling event", gpe_number)); /* - * Disable the GPE. The GPE will remain disabled until the ACPICA - * Core Subsystem is restarted, or a handler is installed. + * Disable the GPE. The GPE will remain disabled a handler + * is installed or ACPICA is restarted. */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to disable GPE[%2X]", + "Unable to disable GPE[0x%2X]", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 247920900187..341a38ce8aa6 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -51,20 +51,6 @@ ACPI_MODULE_NAME("evgpeblk") /* Local prototypes */ static acpi_status -acpi_ev_save_method_info(acpi_handle obj_handle, - u32 level, void *obj_desc, void **return_value); - -static acpi_status -acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, - u32 level, void *info, void **return_value); - -static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 - interrupt_number); - -static acpi_status -acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); - -static acpi_status acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, u32 interrupt_number); @@ -73,547 +59,6 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block); /******************************************************************************* * - * FUNCTION: acpi_ev_valid_gpe_event - * - * PARAMETERS: gpe_event_info - Info for this GPE - * - * RETURN: TRUE if the gpe_event is valid - * - * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. - * Should be called only when the GPE lists are semaphore locked - * and not subject to change. - * - ******************************************************************************/ - -u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) -{ - struct acpi_gpe_xrupt_info *gpe_xrupt_block; - struct acpi_gpe_block_info *gpe_block; - - ACPI_FUNCTION_ENTRY(); - - /* No need for spin lock since we are not changing any list elements */ - - /* Walk the GPE interrupt levels */ - - gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_block) { - gpe_block = gpe_xrupt_block->gpe_block_list_head; - - /* Walk the GPE blocks on this interrupt level */ - - while (gpe_block) { - if ((&gpe_block->event_info[0] <= gpe_event_info) && - (&gpe_block->event_info[((acpi_size) - gpe_block-> - register_count) * 8] > - gpe_event_info)) { - return (TRUE); - } - - gpe_block = gpe_block->next; - } - - gpe_xrupt_block = gpe_xrupt_block->next; - } - - return (FALSE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_walk_gpe_list - * - * PARAMETERS: gpe_walk_callback - Routine called for each GPE block - * Context - Value passed to callback - * - * RETURN: Status - * - * DESCRIPTION: Walk the GPE lists. - * - ******************************************************************************/ - -acpi_status -acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context) -{ - struct acpi_gpe_block_info *gpe_block; - struct acpi_gpe_xrupt_info *gpe_xrupt_info; - acpi_status status = AE_OK; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_walk_gpe_list); - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - - /* Walk the interrupt level descriptor list */ - - gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_info) { - - /* Walk all Gpe Blocks attached to this interrupt level */ - - gpe_block = gpe_xrupt_info->gpe_block_list_head; - while (gpe_block) { - - /* One callback per GPE block */ - - status = - gpe_walk_callback(gpe_xrupt_info, gpe_block, - context); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_END) { /* Callback abort */ - status = AE_OK; - } - goto unlock_and_exit; - } - - gpe_block = gpe_block->next; - } - - gpe_xrupt_info = gpe_xrupt_info->next; - } - - unlock_and_exit: - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_delete_gpe_handlers - * - * PARAMETERS: gpe_xrupt_info - GPE Interrupt info - * gpe_block - Gpe Block info - * - * RETURN: Status - * - * DESCRIPTION: Delete all Handler objects found in the GPE data structs. - * Used only prior to termination. - * - ******************************************************************************/ - -acpi_status -acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, - void *context) -{ - struct acpi_gpe_event_info *gpe_event_info; - u32 i; - u32 j; - - ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers); - - /* Examine each GPE Register within the block */ - - for (i = 0; i < gpe_block->register_count; i++) { - - /* Now look at the individual GPEs in this byte register */ - - for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { - gpe_event_info = &gpe_block->event_info[((acpi_size) i * - ACPI_GPE_REGISTER_WIDTH) - + j]; - - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_HANDLER) { - ACPI_FREE(gpe_event_info->dispatch.handler); - gpe_event_info->dispatch.handler = NULL; - gpe_event_info->flags &= - ~ACPI_GPE_DISPATCH_MASK; - } - } - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_save_method_info - * - * PARAMETERS: Callback from walk_namespace - * - * RETURN: Status - * - * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a - * control method under the _GPE portion of the namespace. - * Extract the name and GPE type from the object, saving this - * information for quick lookup during GPE dispatch - * - * The name of each GPE control method is of the form: - * "_Lxx" or "_Exx" - * Where: - * L - means that the GPE is level triggered - * E - means that the GPE is edge triggered - * xx - is the GPE number [in HEX] - * - ******************************************************************************/ - -static acpi_status -acpi_ev_save_method_info(acpi_handle obj_handle, - u32 level, void *obj_desc, void **return_value) -{ - struct acpi_gpe_block_info *gpe_block = (void *)obj_desc; - struct acpi_gpe_event_info *gpe_event_info; - u32 gpe_number; - char name[ACPI_NAME_SIZE + 1]; - u8 type; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_save_method_info); - - /* - * _Lxx and _Exx GPE method support - * - * 1) Extract the name from the object and convert to a string - */ - ACPI_MOVE_32_TO_32(name, - &((struct acpi_namespace_node *)obj_handle)->name. - integer); - name[ACPI_NAME_SIZE] = 0; - - /* - * 2) Edge/Level determination is based on the 2nd character - * of the method name - * - * NOTE: Default GPE type is RUNTIME. May be changed later to WAKE - * if a _PRW object is found that points to this GPE. - */ - switch (name[1]) { - case 'L': - type = ACPI_GPE_LEVEL_TRIGGERED; - break; - - case 'E': - type = ACPI_GPE_EDGE_TRIGGERED; - break; - - default: - /* Unknown method type, just ignore it! */ - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Ignoring unknown GPE method type: %s " - "(name not of form _Lxx or _Exx)", name)); - return_ACPI_STATUS(AE_OK); - } - - /* Convert the last two characters of the name to the GPE Number */ - - gpe_number = ACPI_STRTOUL(&name[2], NULL, 16); - if (gpe_number == ACPI_UINT32_MAX) { - - /* Conversion failed; invalid method, just ignore it */ - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Could not extract GPE number from name: %s " - "(name is not of form _Lxx or _Exx)", name)); - return_ACPI_STATUS(AE_OK); - } - - /* Ensure that we have a valid GPE number for this GPE block */ - - if ((gpe_number < gpe_block->block_base_number) || - (gpe_number >= (gpe_block->block_base_number + - (gpe_block->register_count * 8)))) { - /* - * Not valid for this GPE block, just ignore it. However, it may be - * valid for a different GPE block, since GPE0 and GPE1 methods both - * appear under \_GPE. - */ - return_ACPI_STATUS(AE_OK); - } - - /* - * Now we can add this information to the gpe_event_info block for use - * during dispatch of this GPE. Default type is RUNTIME, although this may - * change when the _PRW methods are executed later. - */ - gpe_event_info = - &gpe_block->event_info[gpe_number - gpe_block->block_base_number]; - - gpe_event_info->flags = (u8) - (type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME); - - gpe_event_info->dispatch.method_node = - (struct acpi_namespace_node *)obj_handle; - - /* Update enable mask, but don't enable the HW GPE as of yet */ - - status = acpi_ev_enable_gpe(gpe_event_info, FALSE); - - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "Registered GPE method %s as GPE number 0x%.2X\n", - name, gpe_number)); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_match_prw_and_gpe - * - * PARAMETERS: Callback from walk_namespace - * - * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is - * not aborted on a single _PRW failure. - * - * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a - * Device. Run the _PRW method. If present, extract the GPE - * number and mark the GPE as a WAKE GPE. - * - ******************************************************************************/ - -static acpi_status -acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, - u32 level, void *info, void **return_value) -{ - struct acpi_gpe_walk_info *gpe_info = (void *)info; - struct acpi_namespace_node *gpe_device; - struct acpi_gpe_block_info *gpe_block; - struct acpi_namespace_node *target_gpe_device; - struct acpi_gpe_event_info *gpe_event_info; - union acpi_operand_object *pkg_desc; - union acpi_operand_object *obj_desc; - u32 gpe_number; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe); - - /* Check for a _PRW method under this device */ - - status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW, - ACPI_BTYPE_PACKAGE, &pkg_desc); - if (ACPI_FAILURE(status)) { - - /* Ignore all errors from _PRW, we don't want to abort the subsystem */ - - return_ACPI_STATUS(AE_OK); - } - - /* The returned _PRW package must have at least two elements */ - - if (pkg_desc->package.count < 2) { - goto cleanup; - } - - /* Extract pointers from the input context */ - - gpe_device = gpe_info->gpe_device; - gpe_block = gpe_info->gpe_block; - - /* - * The _PRW object must return a package, we are only interested in the - * first element - */ - obj_desc = pkg_desc->package.elements[0]; - - if (obj_desc->common.type == ACPI_TYPE_INTEGER) { - - /* Use FADT-defined GPE device (from definition of _PRW) */ - - target_gpe_device = acpi_gbl_fadt_gpe_device; - - /* Integer is the GPE number in the FADT described GPE blocks */ - - gpe_number = (u32) obj_desc->integer.value; - } else if (obj_desc->common.type == ACPI_TYPE_PACKAGE) { - - /* Package contains a GPE reference and GPE number within a GPE block */ - - if ((obj_desc->package.count < 2) || - ((obj_desc->package.elements[0])->common.type != - ACPI_TYPE_LOCAL_REFERENCE) || - ((obj_desc->package.elements[1])->common.type != - ACPI_TYPE_INTEGER)) { - goto cleanup; - } - - /* Get GPE block reference and decode */ - - target_gpe_device = - obj_desc->package.elements[0]->reference.node; - gpe_number = (u32) obj_desc->package.elements[1]->integer.value; - } else { - /* Unknown type, just ignore it */ - - goto cleanup; - } - - /* - * Is this GPE within this block? - * - * TRUE if and only if these conditions are true: - * 1) The GPE devices match. - * 2) The GPE index(number) is within the range of the Gpe Block - * associated with the GPE device. - */ - if ((gpe_device == target_gpe_device) && - (gpe_number >= gpe_block->block_base_number) && - (gpe_number < gpe_block->block_base_number + - (gpe_block->register_count * 8))) { - gpe_event_info = &gpe_block->event_info[gpe_number - - gpe_block-> - block_base_number]; - - /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */ - - gpe_event_info->flags &= - ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED); - - status = - acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, - ACPI_GPE_DISABLE); - } - - cleanup: - acpi_ut_remove_reference(pkg_desc); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_get_gpe_xrupt_block - * - * PARAMETERS: interrupt_number - Interrupt for a GPE block - * - * RETURN: A GPE interrupt block - * - * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt - * block per unique interrupt level used for GPEs. Should be - * called only when the GPE lists are semaphore locked and not - * subject to change. - * - ******************************************************************************/ - -static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 - interrupt_number) -{ - struct acpi_gpe_xrupt_info *next_gpe_xrupt; - struct acpi_gpe_xrupt_info *gpe_xrupt; - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block); - - /* No need for lock since we are not changing any list elements here */ - - next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; - while (next_gpe_xrupt) { - if (next_gpe_xrupt->interrupt_number == interrupt_number) { - return_PTR(next_gpe_xrupt); - } - - next_gpe_xrupt = next_gpe_xrupt->next; - } - - /* Not found, must allocate a new xrupt descriptor */ - - gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); - if (!gpe_xrupt) { - return_PTR(NULL); - } - - gpe_xrupt->interrupt_number = interrupt_number; - - /* Install new interrupt descriptor with spin lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (acpi_gbl_gpe_xrupt_list_head) { - next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; - while (next_gpe_xrupt->next) { - next_gpe_xrupt = next_gpe_xrupt->next; - } - - next_gpe_xrupt->next = gpe_xrupt; - gpe_xrupt->previous = next_gpe_xrupt; - } else { - acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - /* Install new interrupt handler if not SCI_INT */ - - if (interrupt_number != acpi_gbl_FADT.sci_interrupt) { - status = acpi_os_install_interrupt_handler(interrupt_number, - acpi_ev_gpe_xrupt_handler, - gpe_xrupt); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - interrupt_number)); - return_PTR(NULL); - } - } - - return_PTR(gpe_xrupt); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_delete_gpe_xrupt - * - * PARAMETERS: gpe_xrupt - A GPE interrupt info block - * - * RETURN: Status - * - * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated - * interrupt handler if not the SCI interrupt. - * - ******************************************************************************/ - -static acpi_status -acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) -{ - acpi_status status; - acpi_cpu_flags flags; - - ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt); - - /* We never want to remove the SCI interrupt handler */ - - if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) { - gpe_xrupt->gpe_block_list_head = NULL; - return_ACPI_STATUS(AE_OK); - } - - /* Disable this interrupt */ - - status = - acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number, - acpi_ev_gpe_xrupt_handler); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Unlink the interrupt block with lock */ - - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); - if (gpe_xrupt->previous) { - gpe_xrupt->previous->next = gpe_xrupt->next; - } else { - /* No previous, update list head */ - - acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next; - } - - if (gpe_xrupt->next) { - gpe_xrupt->next->previous = gpe_xrupt->previous; - } - acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - - /* Free the block */ - - ACPI_FREE(gpe_xrupt); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * * FUNCTION: acpi_ev_install_gpe_block * * PARAMETERS: gpe_block - New GPE block @@ -725,8 +170,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) acpi_os_release_lock(acpi_gbl_gpe_lock, flags); } - acpi_current_gpe_count -= - gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH; + acpi_current_gpe_count -= gpe_block->gpe_count; /* Free the gpe_block */ @@ -780,9 +224,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) * Allocate the GPE event_info block. There are eight distinct GPEs * per register. Initialization to zeros is sufficient. */ - gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block-> - register_count * - ACPI_GPE_REGISTER_WIDTH) * + gpe_event_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->gpe_count * sizeof(struct acpi_gpe_event_info)); if (!gpe_event_info) { @@ -900,6 +342,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, { acpi_status status; struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_walk_info walk_info; ACPI_FUNCTION_TRACE(ev_create_gpe_block); @@ -917,6 +360,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, /* Initialize the new GPE block */ gpe_block->node = gpe_device; + gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH); gpe_block->register_count = register_count; gpe_block->block_base_number = gpe_block_base_number; @@ -941,12 +385,17 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, return_ACPI_STATUS(status); } - /* Find all GPE methods (_Lxx, _Exx) for this block */ + /* Find all GPE methods (_Lxx or_Exx) for this block */ + + walk_info.gpe_block = gpe_block; + walk_info.gpe_device = gpe_device; + walk_info.enable_this_gpe = FALSE; + walk_info.execute_by_owner_id = FALSE; status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ev_save_method_info, NULL, - gpe_block, NULL); + acpi_ev_match_gpe_method, NULL, + &walk_info, NULL); /* Return the new block */ @@ -958,14 +407,13 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n", (u32) gpe_block->block_base_number, (u32) (gpe_block->block_base_number + - ((gpe_block->register_count * - ACPI_GPE_REGISTER_WIDTH) - 1)), + (gpe_block->gpe_count - 1)), gpe_device->name.ascii, gpe_block->register_count, interrupt_number)); /* Update global count of currently available GPEs */ - acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH; + acpi_current_gpe_count += gpe_block->gpe_count; return_ACPI_STATUS(AE_OK); } @@ -991,9 +439,11 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, { acpi_status status; struct acpi_gpe_event_info *gpe_event_info; - struct acpi_gpe_walk_info gpe_info; + struct acpi_gpe_walk_info walk_info; u32 wake_gpe_count; u32 gpe_enabled_count; + u32 gpe_index; + u32 gpe_number; u32 i; u32 j; @@ -1016,210 +466,87 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, * definition a wake GPE and will not be enabled while the machine * is running. */ - gpe_info.gpe_block = gpe_block; - gpe_info.gpe_device = gpe_device; + walk_info.gpe_block = gpe_block; + walk_info.gpe_device = gpe_device; + walk_info.execute_by_owner_id = FALSE; status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ev_match_prw_and_gpe, NULL, - &gpe_info, NULL); + &walk_info, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While executing _PRW methods")); + } } /* - * Enable all GPEs in this block that have these attributes: - * 1) are "runtime" or "run/wake" GPEs, and - * 2) have a corresponding _Lxx or _Exx method - * - * Any other GPEs within this block must be enabled via the - * acpi_enable_gpe() external interface. + * Enable all GPEs that have a corresponding method and are not + * capable of generating wakeups. Any other GPEs within this block + * must be enabled via the acpi_enable_gpe interface. */ wake_gpe_count = 0; gpe_enabled_count = 0; + if (gpe_device == acpi_gbl_fadt_gpe_device) { + gpe_device = NULL; + } + for (i = 0; i < gpe_block->register_count; i++) { - for (j = 0; j < 8; j++) { + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { /* Get the info block for this particular GPE */ - gpe_event_info = &gpe_block->event_info[((acpi_size) i * - ACPI_GPE_REGISTER_WIDTH) - + j]; + gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; + gpe_event_info = &gpe_block->event_info[gpe_index]; + gpe_number = gpe_index + gpe_block->block_base_number; - if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_METHOD) && - (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) { + /* + * If the GPE has already been enabled for runtime + * signaling, make sure it remains enabled, but do not + * increment its reference counter. + */ + if (gpe_event_info->runtime_count) { + acpi_set_gpe(gpe_device, gpe_number, + ACPI_GPE_ENABLE); gpe_enabled_count++; + continue; } - if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) { + if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) { wake_gpe_count++; + if (acpi_gbl_leave_wake_gpes_disabled) { + continue; + } } - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Found %u Wake, Enabled %u Runtime GPEs in this block\n", - wake_gpe_count, gpe_enabled_count)); - - /* Enable all valid runtime GPEs found above */ - status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p", - gpe_block)); - } - - return_ACPI_STATUS(status); -} + /* Ignore GPEs that have no corresponding _Lxx/_Exx method */ -/******************************************************************************* - * - * FUNCTION: acpi_ev_gpe_initialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initialize the GPE data structures - * - ******************************************************************************/ - -acpi_status acpi_ev_gpe_initialize(void) -{ - u32 register_count0 = 0; - u32 register_count1 = 0; - u32 gpe_number_max = 0; - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_gpe_initialize); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Initialize the GPE Block(s) defined in the FADT - * - * Why the GPE register block lengths are divided by 2: From the ACPI - * Spec, section "General-Purpose Event Registers", we have: - * - * "Each register block contains two registers of equal length - * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the - * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN - * The length of the GPE1_STS and GPE1_EN registers is equal to - * half the GPE1_LEN. If a generic register block is not supported - * then its respective block pointer and block length values in the - * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need - * to be the same size." - */ - - /* - * Determine the maximum GPE number for this machine. - * - * Note: both GPE0 and GPE1 are optional, and either can exist without - * the other. - * - * If EITHER the register length OR the block address are zero, then that - * particular block is not supported. - */ - if (acpi_gbl_FADT.gpe0_block_length && - acpi_gbl_FADT.xgpe0_block.address) { - - /* GPE block 0 exists (has both length and address > 0) */ - - register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2); - - gpe_number_max = - (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1; - - /* Install GPE Block 0 */ - - status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe0_block, - register_count0, 0, - acpi_gbl_FADT.sci_interrupt, - &acpi_gbl_gpe_fadt_blocks[0]); - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not create GPE Block 0")); - } - } - - if (acpi_gbl_FADT.gpe1_block_length && - acpi_gbl_FADT.xgpe1_block.address) { - - /* GPE block 1 exists (has both length and address > 0) */ - - register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2); - - /* Check for GPE0/GPE1 overlap (if both banks exist) */ - - if ((register_count0) && - (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) { - ACPI_ERROR((AE_INFO, - "GPE0 block (GPE 0 to %d) overlaps the GPE1 block " - "(GPE %d to %d) - Ignoring GPE1", - gpe_number_max, acpi_gbl_FADT.gpe1_base, - acpi_gbl_FADT.gpe1_base + - ((register_count1 * - ACPI_GPE_REGISTER_WIDTH) - 1))); + if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)) { + continue; + } - /* Ignore GPE1 block by setting the register count to zero */ - - register_count1 = 0; - } else { - /* Install GPE Block 1 */ - - status = - acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe1_block, - register_count1, - acpi_gbl_FADT.gpe1_base, - acpi_gbl_FADT. - sci_interrupt, - &acpi_gbl_gpe_fadt_blocks - [1]); + /* Enable this GPE */ + status = acpi_enable_gpe(gpe_device, gpe_number, + ACPI_GPE_TYPE_RUNTIME); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Could not create GPE Block 1")); + "Could not enable GPE 0x%02X", + gpe_number)); + continue; } - /* - * GPE0 and GPE1 do not have to be contiguous in the GPE number - * space. However, GPE0 always starts at GPE number zero. - */ - gpe_number_max = acpi_gbl_FADT.gpe1_base + - ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1); + gpe_enabled_count++; } } - /* Exit if there are no GPE registers */ - - if ((register_count0 + register_count1) == 0) { - - /* GPEs are not required by ACPI, this is OK */ - + if (gpe_enabled_count || wake_gpe_count) { ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "There are no GPE blocks defined in the FADT\n")); - status = AE_OK; - goto cleanup; - } - - /* Check for Max GPE number out-of-range */ - - if (gpe_number_max > ACPI_GPE_MAX) { - ACPI_ERROR((AE_INFO, - "Maximum GPE number from FADT is too large: 0x%X", - gpe_number_max)); - status = AE_BAD_VALUE; - goto cleanup; + "Enabled %u Runtime GPEs, added %u Wake GPEs in this block\n", + gpe_enabled_count, wake_gpe_count)); } - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c new file mode 100644 index 000000000000..3f6c2d26410d --- /dev/null +++ b/drivers/acpi/acpica/evgpeinit.c @@ -0,0 +1,653 @@ +/****************************************************************************** + * + * Module Name: evgpeinit - System GPE initialization and update + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acevents.h" +#include "acnamesp.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evgpeinit") + +/******************************************************************************* + * + * FUNCTION: acpi_ev_gpe_initialize + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Initialize the GPE data structures and the FADT GPE 0/1 blocks + * + ******************************************************************************/ +acpi_status acpi_ev_gpe_initialize(void) +{ + u32 register_count0 = 0; + u32 register_count1 = 0; + u32 gpe_number_max = 0; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_gpe_initialize); + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Initialize the GPE Block(s) defined in the FADT + * + * Why the GPE register block lengths are divided by 2: From the ACPI + * Spec, section "General-Purpose Event Registers", we have: + * + * "Each register block contains two registers of equal length + * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the + * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN + * The length of the GPE1_STS and GPE1_EN registers is equal to + * half the GPE1_LEN. If a generic register block is not supported + * then its respective block pointer and block length values in the + * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need + * to be the same size." + */ + + /* + * Determine the maximum GPE number for this machine. + * + * Note: both GPE0 and GPE1 are optional, and either can exist without + * the other. + * + * If EITHER the register length OR the block address are zero, then that + * particular block is not supported. + */ + if (acpi_gbl_FADT.gpe0_block_length && + acpi_gbl_FADT.xgpe0_block.address) { + + /* GPE block 0 exists (has both length and address > 0) */ + + register_count0 = (u16)(acpi_gbl_FADT.gpe0_block_length / 2); + + gpe_number_max = + (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1; + + /* Install GPE Block 0 */ + + status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, + &acpi_gbl_FADT.xgpe0_block, + register_count0, 0, + acpi_gbl_FADT.sci_interrupt, + &acpi_gbl_gpe_fadt_blocks[0]); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not create GPE Block 0")); + } + } + + if (acpi_gbl_FADT.gpe1_block_length && + acpi_gbl_FADT.xgpe1_block.address) { + + /* GPE block 1 exists (has both length and address > 0) */ + + register_count1 = (u16)(acpi_gbl_FADT.gpe1_block_length / 2); + + /* Check for GPE0/GPE1 overlap (if both banks exist) */ + + if ((register_count0) && + (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) { + ACPI_ERROR((AE_INFO, + "GPE0 block (GPE 0 to %u) overlaps the GPE1 block " + "(GPE %u to %u) - Ignoring GPE1", + gpe_number_max, acpi_gbl_FADT.gpe1_base, + acpi_gbl_FADT.gpe1_base + + ((register_count1 * + ACPI_GPE_REGISTER_WIDTH) - 1))); + + /* Ignore GPE1 block by setting the register count to zero */ + + register_count1 = 0; + } else { + /* Install GPE Block 1 */ + + status = + acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, + &acpi_gbl_FADT.xgpe1_block, + register_count1, + acpi_gbl_FADT.gpe1_base, + acpi_gbl_FADT. + sci_interrupt, + &acpi_gbl_gpe_fadt_blocks + [1]); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not create GPE Block 1")); + } + + /* + * GPE0 and GPE1 do not have to be contiguous in the GPE number + * space. However, GPE0 always starts at GPE number zero. + */ + gpe_number_max = acpi_gbl_FADT.gpe1_base + + ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1); + } + } + + /* Exit if there are no GPE registers */ + + if ((register_count0 + register_count1) == 0) { + + /* GPEs are not required by ACPI, this is OK */ + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, + "There are no GPE blocks defined in the FADT\n")); + status = AE_OK; + goto cleanup; + } + + /* Check for Max GPE number out-of-range */ + + if (gpe_number_max > ACPI_GPE_MAX) { + ACPI_ERROR((AE_INFO, + "Maximum GPE number from FADT is too large: 0x%X", + gpe_number_max)); + status = AE_BAD_VALUE; + goto cleanup; + } + + cleanup: + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_update_gpes + * + * PARAMETERS: table_owner_id - ID of the newly-loaded ACPI table + * + * RETURN: None + * + * DESCRIPTION: Check for new GPE methods (_Lxx/_Exx) made available as a + * result of a Load() or load_table() operation. If new GPE + * methods have been installed, register the new methods and + * enable and runtime GPEs that are associated with them. Also, + * run any newly loaded _PRW methods in order to discover any + * new CAN_WAKE GPEs. + * + ******************************************************************************/ + +void acpi_ev_update_gpes(acpi_owner_id table_owner_id) +{ + struct acpi_gpe_xrupt_info *gpe_xrupt_info; + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_walk_info walk_info; + acpi_status status = AE_OK; + u32 new_wake_gpe_count = 0; + + /* We will examine only _PRW/_Lxx/_Exx methods owned by this table */ + + walk_info.owner_id = table_owner_id; + walk_info.execute_by_owner_id = TRUE; + walk_info.count = 0; + + if (acpi_gbl_leave_wake_gpes_disabled) { + /* + * 1) Run any newly-loaded _PRW methods to find any GPEs that + * can now be marked as CAN_WAKE GPEs. Note: We must run the + * _PRW methods before we process the _Lxx/_Exx methods because + * we will enable all runtime GPEs associated with the new + * _Lxx/_Exx methods at the time we process those methods. + * + * Unlock interpreter so that we can run the _PRW methods. + */ + walk_info.gpe_block = NULL; + walk_info.gpe_device = NULL; + + acpi_ex_exit_interpreter(); + + status = + acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + ACPI_NS_WALK_NO_UNLOCK, + acpi_ev_match_prw_and_gpe, NULL, + &walk_info, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While executing _PRW methods")); + } + + acpi_ex_enter_interpreter(); + new_wake_gpe_count = walk_info.count; + } + + /* + * 2) Find any _Lxx/_Exx GPE methods that have just been loaded. + * + * Any GPEs that correspond to new _Lxx/_Exx methods and are not + * marked as CAN_WAKE are immediately enabled. + * + * Examine the namespace underneath each gpe_device within the + * gpe_block lists. + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return; + } + + walk_info.count = 0; + walk_info.enable_this_gpe = TRUE; + + /* Walk the interrupt level descriptor list */ + + gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_info) { + + /* Walk all Gpe Blocks attached to this interrupt level */ + + gpe_block = gpe_xrupt_info->gpe_block_list_head; + while (gpe_block) { + walk_info.gpe_block = gpe_block; + walk_info.gpe_device = gpe_block->node; + + status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, + walk_info.gpe_device, + ACPI_UINT32_MAX, + ACPI_NS_WALK_NO_UNLOCK, + acpi_ev_match_gpe_method, + NULL, &walk_info, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While decoding _Lxx/_Exx methods")); + } + + gpe_block = gpe_block->next; + } + + gpe_xrupt_info = gpe_xrupt_info->next; + } + + if (walk_info.count || new_wake_gpe_count) { + ACPI_INFO((AE_INFO, + "Enabled %u new runtime GPEs, added %u new wakeup GPEs", + walk_info.count, new_wake_gpe_count)); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_match_gpe_method + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a + * control method under the _GPE portion of the namespace. + * Extract the name and GPE type from the object, saving this + * information for quick lookup during GPE dispatch. Allows a + * per-owner_id evaluation if execute_by_owner_id is TRUE in the + * walk_info parameter block. + * + * The name of each GPE control method is of the form: + * "_Lxx" or "_Exx", where: + * L - means that the GPE is level triggered + * E - means that the GPE is edge triggered + * xx - is the GPE number [in HEX] + * + * If walk_info->execute_by_owner_id is TRUE, we only execute examine GPE methods + * with that owner. + * If walk_info->enable_this_gpe is TRUE, the GPE that is referred to by a GPE + * method is immediately enabled (Used for Load/load_table operators) + * + ******************************************************************************/ + +acpi_status +acpi_ev_match_gpe_method(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + struct acpi_namespace_node *method_node = + ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + struct acpi_gpe_walk_info *walk_info = + ACPI_CAST_PTR(struct acpi_gpe_walk_info, context); + struct acpi_gpe_event_info *gpe_event_info; + struct acpi_namespace_node *gpe_device; + acpi_status status; + u32 gpe_number; + char name[ACPI_NAME_SIZE + 1]; + u8 type; + + ACPI_FUNCTION_TRACE(ev_match_gpe_method); + + /* Check if requested owner_id matches this owner_id */ + + if ((walk_info->execute_by_owner_id) && + (method_node->owner_id != walk_info->owner_id)) { + return_ACPI_STATUS(AE_OK); + } + + /* + * Match and decode the _Lxx and _Exx GPE method names + * + * 1) Extract the method name and null terminate it + */ + ACPI_MOVE_32_TO_32(name, &method_node->name.integer); + name[ACPI_NAME_SIZE] = 0; + + /* 2) Name must begin with an underscore */ + + if (name[0] != '_') { + return_ACPI_STATUS(AE_OK); /* Ignore this method */ + } + + /* + * 3) Edge/Level determination is based on the 2nd character + * of the method name + * + * NOTE: Default GPE type is RUNTIME only. Later, if a _PRW object is + * found that points to this GPE, the ACPI_GPE_CAN_WAKE flag is set. + */ + switch (name[1]) { + case 'L': + type = ACPI_GPE_LEVEL_TRIGGERED; + break; + + case 'E': + type = ACPI_GPE_EDGE_TRIGGERED; + break; + + default: + /* Unknown method type, just ignore it */ + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Ignoring unknown GPE method type: %s " + "(name not of form _Lxx or _Exx)", name)); + return_ACPI_STATUS(AE_OK); + } + + /* 4) The last two characters of the name are the hex GPE Number */ + + gpe_number = ACPI_STRTOUL(&name[2], NULL, 16); + if (gpe_number == ACPI_UINT32_MAX) { + + /* Conversion failed; invalid method, just ignore it */ + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Could not extract GPE number from name: %s " + "(name is not of form _Lxx or _Exx)", name)); + return_ACPI_STATUS(AE_OK); + } + + /* Ensure that we have a valid GPE number for this GPE block */ + + gpe_event_info = + acpi_ev_low_get_gpe_info(gpe_number, walk_info->gpe_block); + if (!gpe_event_info) { + /* + * This gpe_number is not valid for this GPE block, just ignore it. + * However, it may be valid for a different GPE block, since GPE0 + * and GPE1 methods both appear under \_GPE. + */ + return_ACPI_STATUS(AE_OK); + } + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_HANDLER) { + + /* If there is already a handler, ignore this GPE method */ + + return_ACPI_STATUS(AE_OK); + } + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_METHOD) { + /* + * If there is already a method, ignore this method. But check + * for a type mismatch (if both the _Lxx AND _Exx exist) + */ + if (type != (gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK)) { + ACPI_ERROR((AE_INFO, + "For GPE 0x%.2X, found both _L%2.2X and _E%2.2X methods", + gpe_number, gpe_number, gpe_number)); + } + return_ACPI_STATUS(AE_OK); + } + + /* + * Add the GPE information from above to the gpe_event_info block for + * use during dispatch of this GPE. + */ + gpe_event_info->flags |= (u8)(type | ACPI_GPE_DISPATCH_METHOD); + gpe_event_info->dispatch.method_node = method_node; + + /* + * Enable this GPE if requested. This only happens when during the + * execution of a Load or load_table operator. We have found a new + * GPE method and want to immediately enable the GPE if it is a + * runtime GPE. + */ + if (walk_info->enable_this_gpe) { + + /* Ignore GPEs that can wake the system */ + + if (!(gpe_event_info->flags & ACPI_GPE_CAN_WAKE) || + !acpi_gbl_leave_wake_gpes_disabled) { + walk_info->count++; + gpe_device = walk_info->gpe_device; + + if (gpe_device == acpi_gbl_fadt_gpe_device) { + gpe_device = NULL; + } + + status = acpi_enable_gpe(gpe_device, gpe_number, + ACPI_GPE_TYPE_RUNTIME); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not enable GPE 0x%02X", + gpe_number)); + } + } + } + + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Registered GPE method %s as GPE number 0x%.2X\n", + name, gpe_number)); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_match_prw_and_gpe + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is + * not aborted on a single _PRW failure. + * + * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a + * Device. Run the _PRW method. If present, extract the GPE + * number and mark the GPE as a CAN_WAKE GPE. Allows a + * per-owner_id execution if execute_by_owner_id is TRUE in the + * walk_info parameter block. + * + * If walk_info->execute_by_owner_id is TRUE, we only execute _PRWs with that + * owner. + * If walk_info->gpe_device is NULL, we execute every _PRW found. Otherwise, + * we only execute _PRWs that refer to the input gpe_device. + * + ******************************************************************************/ + +acpi_status +acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + struct acpi_gpe_walk_info *walk_info = + ACPI_CAST_PTR(struct acpi_gpe_walk_info, context); + struct acpi_namespace_node *gpe_device; + struct acpi_gpe_block_info *gpe_block; + struct acpi_namespace_node *target_gpe_device; + struct acpi_namespace_node *prw_node; + struct acpi_gpe_event_info *gpe_event_info; + union acpi_operand_object *pkg_desc; + union acpi_operand_object *obj_desc; + u32 gpe_number; + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe); + + /* Check for a _PRW method under this device */ + + status = acpi_ns_get_node(obj_handle, METHOD_NAME__PRW, + ACPI_NS_NO_UPSEARCH, &prw_node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(AE_OK); + } + + /* Check if requested owner_id matches this owner_id */ + + if ((walk_info->execute_by_owner_id) && + (prw_node->owner_id != walk_info->owner_id)) { + return_ACPI_STATUS(AE_OK); + } + + /* Execute the _PRW */ + + status = acpi_ut_evaluate_object(prw_node, NULL, + ACPI_BTYPE_PACKAGE, &pkg_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(AE_OK); + } + + /* The returned _PRW package must have at least two elements */ + + if (pkg_desc->package.count < 2) { + goto cleanup; + } + + /* Extract pointers from the input context */ + + gpe_device = walk_info->gpe_device; + gpe_block = walk_info->gpe_block; + + /* + * The _PRW object must return a package, we are only interested + * in the first element + */ + obj_desc = pkg_desc->package.elements[0]; + + if (obj_desc->common.type == ACPI_TYPE_INTEGER) { + + /* Use FADT-defined GPE device (from definition of _PRW) */ + + target_gpe_device = NULL; + if (gpe_device) { + target_gpe_device = acpi_gbl_fadt_gpe_device; + } + + /* Integer is the GPE number in the FADT described GPE blocks */ + + gpe_number = (u32)obj_desc->integer.value; + } else if (obj_desc->common.type == ACPI_TYPE_PACKAGE) { + + /* Package contains a GPE reference and GPE number within a GPE block */ + + if ((obj_desc->package.count < 2) || + ((obj_desc->package.elements[0])->common.type != + ACPI_TYPE_LOCAL_REFERENCE) || + ((obj_desc->package.elements[1])->common.type != + ACPI_TYPE_INTEGER)) { + goto cleanup; + } + + /* Get GPE block reference and decode */ + + target_gpe_device = + obj_desc->package.elements[0]->reference.node; + gpe_number = (u32)obj_desc->package.elements[1]->integer.value; + } else { + /* Unknown type, just ignore it */ + + goto cleanup; + } + + /* Get the gpe_event_info for this GPE */ + + if (gpe_device) { + /* + * Is this GPE within this block? + * + * TRUE if and only if these conditions are true: + * 1) The GPE devices match. + * 2) The GPE index(number) is within the range of the Gpe Block + * associated with the GPE device. + */ + if (gpe_device != target_gpe_device) { + goto cleanup; + } + + gpe_event_info = + acpi_ev_low_get_gpe_info(gpe_number, gpe_block); + } else { + /* gpe_device is NULL, just match the target_device and gpe_number */ + + gpe_event_info = + acpi_ev_get_gpe_event_info(target_gpe_device, gpe_number); + } + + if (gpe_event_info) { + if (!(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { + + /* This GPE can wake the system */ + + gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; + walk_info->count++; + } + } + + cleanup: + acpi_ut_remove_reference(pkg_desc); + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c new file mode 100644 index 000000000000..19a0e513ea48 --- /dev/null +++ b/drivers/acpi/acpica/evgpeutil.c @@ -0,0 +1,337 @@ +/****************************************************************************** + * + * Module Name: evgpeutil - GPE utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acevents.h" + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evgpeutil") + +/******************************************************************************* + * + * FUNCTION: acpi_ev_walk_gpe_list + * + * PARAMETERS: gpe_walk_callback - Routine called for each GPE block + * Context - Value passed to callback + * + * RETURN: Status + * + * DESCRIPTION: Walk the GPE lists. + * + ******************************************************************************/ +acpi_status +acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context) +{ + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_xrupt_info *gpe_xrupt_info; + acpi_status status = AE_OK; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_walk_gpe_list); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Walk the interrupt level descriptor list */ + + gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_info) { + + /* Walk all Gpe Blocks attached to this interrupt level */ + + gpe_block = gpe_xrupt_info->gpe_block_list_head; + while (gpe_block) { + + /* One callback per GPE block */ + + status = + gpe_walk_callback(gpe_xrupt_info, gpe_block, + context); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_END) { /* Callback abort */ + status = AE_OK; + } + goto unlock_and_exit; + } + + gpe_block = gpe_block->next; + } + + gpe_xrupt_info = gpe_xrupt_info->next; + } + + unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_valid_gpe_event + * + * PARAMETERS: gpe_event_info - Info for this GPE + * + * RETURN: TRUE if the gpe_event is valid + * + * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. + * Should be called only when the GPE lists are semaphore locked + * and not subject to change. + * + ******************************************************************************/ + +u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) +{ + struct acpi_gpe_xrupt_info *gpe_xrupt_block; + struct acpi_gpe_block_info *gpe_block; + + ACPI_FUNCTION_ENTRY(); + + /* No need for spin lock since we are not changing any list elements */ + + /* Walk the GPE interrupt levels */ + + gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_block) { + gpe_block = gpe_xrupt_block->gpe_block_list_head; + + /* Walk the GPE blocks on this interrupt level */ + + while (gpe_block) { + if ((&gpe_block->event_info[0] <= gpe_event_info) && + (&gpe_block->event_info[gpe_block->gpe_count] > + gpe_event_info)) { + return (TRUE); + } + + gpe_block = gpe_block->next; + } + + gpe_xrupt_block = gpe_xrupt_block->next; + } + + return (FALSE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_get_gpe_xrupt_block + * + * PARAMETERS: interrupt_number - Interrupt for a GPE block + * + * RETURN: A GPE interrupt block + * + * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt + * block per unique interrupt level used for GPEs. Should be + * called only when the GPE lists are semaphore locked and not + * subject to change. + * + ******************************************************************************/ + +struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) +{ + struct acpi_gpe_xrupt_info *next_gpe_xrupt; + struct acpi_gpe_xrupt_info *gpe_xrupt; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block); + + /* No need for lock since we are not changing any list elements here */ + + next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; + while (next_gpe_xrupt) { + if (next_gpe_xrupt->interrupt_number == interrupt_number) { + return_PTR(next_gpe_xrupt); + } + + next_gpe_xrupt = next_gpe_xrupt->next; + } + + /* Not found, must allocate a new xrupt descriptor */ + + gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); + if (!gpe_xrupt) { + return_PTR(NULL); + } + + gpe_xrupt->interrupt_number = interrupt_number; + + /* Install new interrupt descriptor with spin lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (acpi_gbl_gpe_xrupt_list_head) { + next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; + while (next_gpe_xrupt->next) { + next_gpe_xrupt = next_gpe_xrupt->next; + } + + next_gpe_xrupt->next = gpe_xrupt; + gpe_xrupt->previous = next_gpe_xrupt; + } else { + acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + /* Install new interrupt handler if not SCI_INT */ + + if (interrupt_number != acpi_gbl_FADT.sci_interrupt) { + status = acpi_os_install_interrupt_handler(interrupt_number, + acpi_ev_gpe_xrupt_handler, + gpe_xrupt); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not install GPE interrupt handler at level 0x%X", + interrupt_number)); + return_PTR(NULL); + } + } + + return_PTR(gpe_xrupt); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_delete_gpe_xrupt + * + * PARAMETERS: gpe_xrupt - A GPE interrupt info block + * + * RETURN: Status + * + * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated + * interrupt handler if not the SCI interrupt. + * + ******************************************************************************/ + +acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) +{ + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt); + + /* We never want to remove the SCI interrupt handler */ + + if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) { + gpe_xrupt->gpe_block_list_head = NULL; + return_ACPI_STATUS(AE_OK); + } + + /* Disable this interrupt */ + + status = + acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number, + acpi_ev_gpe_xrupt_handler); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Unlink the interrupt block with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (gpe_xrupt->previous) { + gpe_xrupt->previous->next = gpe_xrupt->next; + } else { + /* No previous, update list head */ + + acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next; + } + + if (gpe_xrupt->next) { + gpe_xrupt->next->previous = gpe_xrupt->previous; + } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + + /* Free the block */ + + ACPI_FREE(gpe_xrupt); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_delete_gpe_handlers + * + * PARAMETERS: gpe_xrupt_info - GPE Interrupt info + * gpe_block - Gpe Block info + * + * RETURN: Status + * + * DESCRIPTION: Delete all Handler objects found in the GPE data structs. + * Used only prior to termination. + * + ******************************************************************************/ + +acpi_status +acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, + void *context) +{ + struct acpi_gpe_event_info *gpe_event_info; + u32 i; + u32 j; + + ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers); + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + + /* Now look at the individual GPEs in this byte register */ + + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + gpe_event_info = &gpe_block->event_info[((acpi_size) i * + ACPI_GPE_REGISTER_WIDTH) + + j]; + + if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_HANDLER) { + ACPI_FREE(gpe_event_info->dispatch.handler); + gpe_event_info->dispatch.handler = NULL; + gpe_event_info->flags &= + ~ACPI_GPE_DISPATCH_MASK; + } + } + } + + return_ACPI_STATUS(AE_OK); +} diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index ce224e1eaa89..df0aea9a8cfd 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -259,9 +259,15 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) handler_obj = notify_info->notify.handler_obj; if (handler_obj) { - handler_obj->notify.handler(notify_info->notify.node, - notify_info->notify.value, - handler_obj->notify.context); + struct acpi_object_notify_handler *notifier; + + notifier = &handler_obj->notify; + while (notifier) { + notifier->handler(notify_info->notify.node, + notify_info->notify.value, + notifier->context); + notifier = notifier->next; + } } /* All done with the info object */ @@ -584,7 +590,7 @@ void acpi_ev_terminate(void) status = acpi_disable_event(i, 0); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, - "Could not disable fixed event %d", + "Could not disable fixed event %u", (u32) i)); } } diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 5336d911fbf0..98fd210e87b2 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -329,7 +329,7 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) * region_offset - Where in the region to read or write * bit_width - Field width in bits (8, 16, 32, or 64) * Value - Pointer to in or out value, must be - * full 64-bit acpi_integer + * a full 64-bit integer * * RETURN: Status * @@ -341,8 +341,7 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) acpi_status acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, u32 function, - u32 region_offset, - u32 bit_width, acpi_integer * value) + u32 region_offset, u32 bit_width, u64 *value) { acpi_status status; acpi_adr_space_handler handler; diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index ff168052a332..2e3b0334072f 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -168,7 +168,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, void *handler_context, void **region_context) { acpi_status status = AE_OK; - acpi_integer pci_value; + u64 pci_value; struct acpi_pci_id *pci_id = *region_context; union acpi_operand_object *handler_obj; struct acpi_namespace_node *parent_node; diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c index 567b356c85af..8dfbaa96e422 100644 --- a/drivers/acpi/acpica/evsci.c +++ b/drivers/acpi/acpica/evsci.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 2fe0809d4eb2..4a531cdf7942 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -142,7 +142,7 @@ acpi_install_fixed_event_handler(u32 event, if (ACPI_SUCCESS(status)) status = acpi_enable_event(event, 0); if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "Could not enable fixed event %X", + ACPI_WARNING((AE_INFO, "Could not enable fixed event 0x%X", event)); /* Remove the handler */ @@ -203,7 +203,7 @@ acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler) if (ACPI_FAILURE(status)) { ACPI_WARNING((AE_INFO, - "Could not write to fixed event enable register %X", + "Could not write to fixed event enable register 0x%X", event)); } else { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n", @@ -218,6 +218,72 @@ ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler) /******************************************************************************* * + * FUNCTION: acpi_populate_handler_object + * + * PARAMETERS: handler_obj - Handler object to populate + * handler_type - The type of handler: + * ACPI_SYSTEM_NOTIFY: system_handler (00-7f) + * ACPI_DEVICE_NOTIFY: driver_handler (80-ff) + * ACPI_ALL_NOTIFY: both system and device + * handler - Address of the handler + * context - Value passed to the handler on each GPE + * next - Address of a handler object to link to + * + * RETURN: None + * + * DESCRIPTION: Populate a handler object. + * + ******************************************************************************/ +static void +acpi_populate_handler_object(struct acpi_object_notify_handler *handler_obj, + u32 handler_type, + acpi_notify_handler handler, void *context, + struct acpi_object_notify_handler *next) +{ + handler_obj->handler_type = handler_type; + handler_obj->handler = handler; + handler_obj->context = context; + handler_obj->next = next; +} + +/******************************************************************************* + * + * FUNCTION: acpi_add_handler_object + * + * PARAMETERS: parent_obj - Parent of the new object + * handler - Address of the handler + * context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Create a new handler object and populate it. + * + ******************************************************************************/ +static acpi_status +acpi_add_handler_object(struct acpi_object_notify_handler *parent_obj, + acpi_notify_handler handler, void *context) +{ + struct acpi_object_notify_handler *handler_obj; + + /* The parent must not be a defice notify handler object. */ + if (parent_obj->handler_type & ACPI_DEVICE_NOTIFY) + return AE_BAD_PARAMETER; + + handler_obj = ACPI_ALLOCATE_ZEROED(sizeof(*handler_obj)); + if (!handler_obj) + return AE_NO_MEMORY; + + acpi_populate_handler_object(handler_obj, + ACPI_SYSTEM_NOTIFY, + handler, context, + parent_obj->next); + parent_obj->next = handler_obj; + + return AE_OK; +} + +/******************************************************************************* + * * FUNCTION: acpi_install_notify_handler * * PARAMETERS: Device - The device for which notifies will be handled @@ -316,15 +382,32 @@ acpi_install_notify_handler(acpi_handle device, obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { - /* Object exists - make sure there's no handler */ + /* Object exists. */ - if (((handler_type & ACPI_SYSTEM_NOTIFY) && - obj_desc->common_notify.system_notify) || - ((handler_type & ACPI_DEVICE_NOTIFY) && - obj_desc->common_notify.device_notify)) { + /* For a device notify, make sure there's no handler. */ + if ((handler_type & ACPI_DEVICE_NOTIFY) && + obj_desc->common_notify.device_notify) { status = AE_ALREADY_EXISTS; goto unlock_and_exit; } + + /* System notifies may have more handlers installed. */ + notify_obj = obj_desc->common_notify.system_notify; + + if ((handler_type & ACPI_SYSTEM_NOTIFY) && notify_obj) { + struct acpi_object_notify_handler *parent_obj; + + if (handler_type & ACPI_DEVICE_NOTIFY) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + + parent_obj = ¬ify_obj->notify; + status = acpi_add_handler_object(parent_obj, + handler, + context); + goto unlock_and_exit; + } } else { /* Create a new object */ @@ -356,9 +439,10 @@ acpi_install_notify_handler(acpi_handle device, goto unlock_and_exit; } - notify_obj->notify.node = node; - notify_obj->notify.handler = handler; - notify_obj->notify.context = context; + acpi_populate_handler_object(¬ify_obj->notify, + handler_type, + handler, context, + NULL); if (handler_type & ACPI_SYSTEM_NOTIFY) { obj_desc->common_notify.system_notify = notify_obj; @@ -418,6 +502,10 @@ acpi_remove_notify_handler(acpi_handle device, goto exit; } + + /* Make sure all deferred tasks are completed */ + acpi_os_wait_events_complete(NULL); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { goto exit; @@ -445,15 +533,6 @@ acpi_remove_notify_handler(acpi_handle device, goto unlock_and_exit; } - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } - if (handler_type & ACPI_SYSTEM_NOTIFY) { acpi_gbl_system_notify.node = NULL; acpi_gbl_system_notify.handler = NULL; @@ -488,28 +567,60 @@ acpi_remove_notify_handler(acpi_handle device, /* Object exists - make sure there's an existing handler */ if (handler_type & ACPI_SYSTEM_NOTIFY) { + struct acpi_object_notify_handler *handler_obj; + struct acpi_object_notify_handler *parent_obj; + notify_obj = obj_desc->common_notify.system_notify; if (!notify_obj) { status = AE_NOT_EXIST; goto unlock_and_exit; } - if (notify_obj->notify.handler != handler) { + handler_obj = ¬ify_obj->notify; + parent_obj = NULL; + while (handler_obj->handler != handler) { + if (handler_obj->next) { + parent_obj = handler_obj; + handler_obj = handler_obj->next; + } else { + break; + } + } + + if (handler_obj->handler != handler) { status = AE_BAD_PARAMETER; goto unlock_and_exit; } - /* Make sure all deferred tasks are completed */ - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; + /* + * Remove the handler. There are three possible cases. + * First, we may need to remove a non-embedded object. + * Second, we may need to remove the embedded object's + * handler data, while non-embedded objects exist. + * Finally, we may need to remove the embedded object + * entirely along with its container. + */ + if (parent_obj) { + /* Non-embedded object is being removed. */ + parent_obj->next = handler_obj->next; + ACPI_FREE(handler_obj); + } else if (notify_obj->notify.next) { + /* + * The handler matches the embedded object, but + * there are more handler objects in the list. + * Replace the embedded object's data with the + * first next object's data and remove that + * object. + */ + parent_obj = ¬ify_obj->notify; + handler_obj = notify_obj->notify.next; + *parent_obj = *handler_obj; + ACPI_FREE(handler_obj); + } else { + /* No more handler objects in the list. */ + obj_desc->common_notify.system_notify = NULL; + acpi_ut_remove_reference(notify_obj); } - - /* Remove the handler */ - obj_desc->common_notify.system_notify = NULL; - acpi_ut_remove_reference(notify_obj); } if (handler_type & ACPI_DEVICE_NOTIFY) { @@ -523,14 +634,6 @@ acpi_remove_notify_handler(acpi_handle device, status = AE_BAD_PARAMETER; goto unlock_and_exit; } - /* Make sure all deferred tasks are completed */ - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - acpi_os_wait_events_complete(NULL); - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } /* Remove the handler */ obj_desc->common_notify.device_notify = NULL; @@ -579,14 +682,13 @@ acpi_install_gpe_handler(acpi_handle gpe_device, /* Parameter validation */ - if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) { - status = AE_BAD_PARAMETER; - goto exit; + if ((!address) || (type & ~ACPI_GPE_XRUPT_TYPE_MASK)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); } status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { - goto exit; + return_ACPI_STATUS(status); } /* Ensure that we have a valid GPE number */ @@ -617,13 +719,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device, handler->context = context; handler->method_node = gpe_event_info->dispatch.method_node; - /* Disable the GPE before installing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - /* Install the handler */ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); @@ -637,12 +732,8 @@ acpi_install_gpe_handler(acpi_handle gpe_device, acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - unlock_and_exit: +unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - exit: - if (ACPI_FAILURE(status)) - ACPI_EXCEPTION((AE_INFO, status, - "Installing notify handler failed")); return_ACPI_STATUS(status); } @@ -707,13 +798,6 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, goto unlock_and_exit; } - /* Disable the GPE before removing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - /* Make sure all deferred tasks are completed */ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index eed7a38d25f2..18b3f1468b7d 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -69,7 +69,8 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, acpi_status acpi_enable(void) { - acpi_status status = AE_OK; + acpi_status status; + int retry; ACPI_FUNCTION_TRACE(acpi_enable); @@ -84,21 +85,32 @@ acpi_status acpi_enable(void) if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { ACPI_DEBUG_PRINT((ACPI_DB_INIT, "System is already in ACPI mode\n")); - } else { - /* Transition to ACPI mode */ + return_ACPI_STATUS(AE_OK); + } - status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not transition to ACPI mode")); - return_ACPI_STATUS(status); - } + /* Transition to ACPI mode */ - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Transition to ACPI mode successful\n")); + status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not transition to ACPI mode")); + return_ACPI_STATUS(status); } - return_ACPI_STATUS(status); + /* Sanity check that transition succeeded */ + + for (retry = 0; retry < 30000; ++retry) { + if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { + if (retry != 0) + ACPI_WARNING((AE_INFO, + "Platform took > %d00 usec to enter ACPI mode", retry)); + return_ACPI_STATUS(AE_OK); + } + acpi_os_stall(100); /* 100 usec */ + } + + ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode")); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } ACPI_EXPORT_SYMBOL(acpi_enable) @@ -201,23 +213,70 @@ ACPI_EXPORT_SYMBOL(acpi_enable_event) /******************************************************************************* * - * FUNCTION: acpi_set_gpe_type + * FUNCTION: acpi_clear_and_enable_gpe + * + * PARAMETERS: gpe_event_info - GPE to enable + * + * RETURN: Status + * + * DESCRIPTION: Clear the given GPE from stale events and enable it. * - * PARAMETERS: gpe_device - Parent GPE Device + ******************************************************************************/ +static acpi_status +acpi_clear_and_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + /* + * We will only allow a GPE to be enabled if it has either an + * associated method (_Lxx/_Exx) or a handler. Otherwise, the + * GPE will be immediately disabled by acpi_ev_gpe_dispatch the + * first time it fires. + */ + if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) { + return_ACPI_STATUS(AE_NO_HANDLER); + } + + /* Clear the GPE (of stale events) */ + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Enable the requested GPE */ + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_set_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 * gpe_number - GPE level within the GPE block - * Type - New GPE type + * action - ACPI_GPE_ENABLE or ACPI_GPE_DISABLE * * RETURN: Status * - * DESCRIPTION: Set the type of an individual GPE + * DESCRIPTION: Enable or disable an individual GPE. This function bypasses + * the reference count mechanism used in the acpi_enable_gpe and + * acpi_disable_gpe interfaces -- and should be used with care. + * + * Note: Typically used to disable a runtime GPE for short period of time, + * then re-enable it, without disturbing the existing reference counts. This + * is useful, for example, in the Embedded Controller (EC) driver. * ******************************************************************************/ -acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) +acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) { - acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; + acpi_status status; + acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE(acpi_set_gpe_type); + ACPI_FUNCTION_TRACE(acpi_set_gpe); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); /* Ensure that we have a valid GPE number */ @@ -227,42 +286,59 @@ acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) goto unlock_and_exit; } - if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) { - return_ACPI_STATUS(AE_OK); - } + /* Perform the action */ - /* Set the new type (will disable GPE if currently enabled) */ + switch (action) { + case ACPI_GPE_ENABLE: + status = acpi_clear_and_enable_gpe(gpe_event_info); + break; - status = acpi_ev_set_gpe_type(gpe_event_info, type); + case ACPI_GPE_DISABLE: + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); + break; + + default: + status = AE_BAD_PARAMETER; + break; + } unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } -ACPI_EXPORT_SYMBOL(acpi_set_gpe_type) +ACPI_EXPORT_SYMBOL(acpi_set_gpe) /******************************************************************************* * * FUNCTION: acpi_enable_gpe * - * PARAMETERS: gpe_device - Parent GPE Device + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 * gpe_number - GPE level within the GPE block - * Flags - Just enable, or also wake enable? - * Called from ISR or not + * gpe_type - ACPI_GPE_TYPE_RUNTIME or ACPI_GPE_TYPE_WAKE + * or both * * RETURN: Status * - * DESCRIPTION: Enable an ACPI event (general purpose) + * DESCRIPTION: Add a reference to a GPE. On the first reference, the GPE is + * hardware-enabled (for runtime GPEs), or the GPE register mask + * is updated (for wake GPEs). * ******************************************************************************/ -acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number) +acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) { acpi_status status = AE_OK; - acpi_cpu_flags flags; struct acpi_gpe_event_info *gpe_event_info; + acpi_cpu_flags flags; ACPI_FUNCTION_TRACE(acpi_enable_gpe); + /* Parameter validation */ + + if (!gpe_type || (gpe_type & ~ACPI_GPE_TYPE_WAKE_RUN)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); /* Ensure that we have a valid GPE number */ @@ -273,40 +349,87 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number) goto unlock_and_exit; } - /* Perform the enable */ + if (gpe_type & ACPI_GPE_TYPE_RUNTIME) { + if (gpe_event_info->runtime_count == ACPI_UINT8_MAX) { + status = AE_LIMIT; /* Too many references */ + goto unlock_and_exit; + } + + gpe_event_info->runtime_count++; + if (gpe_event_info->runtime_count == 1) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_clear_and_enable_gpe(gpe_event_info); + } + + if (ACPI_FAILURE(status)) { + gpe_event_info->runtime_count--; + goto unlock_and_exit; + } + } + } - status = acpi_ev_enable_gpe(gpe_event_info, TRUE); + if (gpe_type & ACPI_GPE_TYPE_WAKE) { + /* The GPE must have the ability to wake the system */ - unlock_and_exit: + if (!(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { + status = AE_TYPE; + goto unlock_and_exit; + } + + if (gpe_event_info->wakeup_count == ACPI_UINT8_MAX) { + status = AE_LIMIT; /* Too many references */ + goto unlock_and_exit; + } + + /* + * Update the enable mask on the first wakeup reference. Wake GPEs + * are only hardware-enabled just before sleeping. + */ + gpe_event_info->wakeup_count++; + if (gpe_event_info->wakeup_count == 1) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + } + } + +unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } - ACPI_EXPORT_SYMBOL(acpi_enable_gpe) /******************************************************************************* * * FUNCTION: acpi_disable_gpe * - * PARAMETERS: gpe_device - Parent GPE Device + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 * gpe_number - GPE level within the GPE block - * Flags - Just disable, or also wake disable? - * Called from ISR or not + * gpe_type - ACPI_GPE_TYPE_RUNTIME or ACPI_GPE_TYPE_WAKE + * or both * * RETURN: Status * - * DESCRIPTION: Disable an ACPI event (general purpose) + * DESCRIPTION: Remove a reference to a GPE. When the last reference is + * removed, only then is the GPE disabled (for runtime GPEs), or + * the GPE mask bit disabled (for wake GPEs) * ******************************************************************************/ -acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number) +acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) { acpi_status status = AE_OK; - acpi_cpu_flags flags; struct acpi_gpe_event_info *gpe_event_info; + acpi_cpu_flags flags; ACPI_FUNCTION_TRACE(acpi_disable_gpe); + /* Parameter validation */ + + if (!gpe_type || (gpe_type & ~ACPI_GPE_TYPE_WAKE_RUN)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + /* Ensure that we have a valid GPE number */ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); @@ -315,13 +438,50 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number) goto unlock_and_exit; } - status = acpi_ev_disable_gpe(gpe_event_info); + /* Hardware-disable a runtime GPE on removal of the last reference */ + + if (gpe_type & ACPI_GPE_TYPE_RUNTIME) { + if (!gpe_event_info->runtime_count) { + status = AE_LIMIT; /* There are no references to remove */ + goto unlock_and_exit; + } + + gpe_event_info->runtime_count--; + if (!gpe_event_info->runtime_count) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_hw_low_set_gpe(gpe_event_info, + ACPI_GPE_DISABLE); + } + + if (ACPI_FAILURE(status)) { + gpe_event_info->runtime_count++; + goto unlock_and_exit; + } + } + } + + /* + * Update masks for wake GPE on removal of the last reference. + * No need to hardware-disable wake GPEs here, they are not currently + * enabled. + */ + if (gpe_type & ACPI_GPE_TYPE_WAKE) { + if (!gpe_event_info->wakeup_count) { + status = AE_LIMIT; /* There are no references to remove */ + goto unlock_and_exit; + } + + gpe_event_info->wakeup_count--; + if (!gpe_event_info->wakeup_count) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + } + } unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } - ACPI_EXPORT_SYMBOL(acpi_disable_gpe) /******************************************************************************* @@ -419,30 +579,23 @@ ACPI_EXPORT_SYMBOL(acpi_clear_event) * * FUNCTION: acpi_clear_gpe * - * PARAMETERS: gpe_device - Parent GPE Device + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not * * RETURN: Status * * DESCRIPTION: Clear an ACPI event (general purpose) * ******************************************************************************/ -acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) +acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; + acpi_cpu_flags flags; ACPI_FUNCTION_TRACE(acpi_clear_gpe); - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); /* Ensure that we have a valid GPE number */ @@ -455,9 +608,7 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) status = acpi_hw_clear_gpe(gpe_event_info); unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } @@ -523,9 +674,8 @@ ACPI_EXPORT_SYMBOL(acpi_get_event_status) * * FUNCTION: acpi_get_gpe_status * - * PARAMETERS: gpe_device - Parent GPE Device + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not * event_status - Where the current status of the event will * be returned * @@ -536,21 +686,15 @@ ACPI_EXPORT_SYMBOL(acpi_get_event_status) ******************************************************************************/ acpi_status acpi_get_gpe_status(acpi_handle gpe_device, - u32 gpe_number, u32 flags, acpi_event_status * event_status) + u32 gpe_number, acpi_event_status *event_status) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; + acpi_cpu_flags flags; ACPI_FUNCTION_TRACE(acpi_get_gpe_status); - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); /* Ensure that we have a valid GPE number */ @@ -568,9 +712,7 @@ acpi_get_gpe_status(acpi_handle gpe_device, *event_status |= ACPI_EVENT_FLAG_HANDLE; unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } @@ -627,20 +769,15 @@ acpi_install_gpe_block(acpi_handle gpe_device, goto unlock_and_exit; } - /* Run the _PRW methods and enable the GPEs */ - - status = acpi_ev_initialize_gpe_block(node, gpe_block); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Get the device_object attached to the node */ + /* Install block in the device_object attached to the node */ obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { - /* No object, create a new one */ - + /* + * No object, create a new one (Device nodes do not always have + * an attached object) + */ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); if (!obj_desc) { status = AE_NO_MEMORY; @@ -659,10 +796,14 @@ acpi_install_gpe_block(acpi_handle gpe_device, } } - /* Install the GPE block in the device_object */ + /* Now install the GPE block in the device_object */ obj_desc->device.gpe_block = gpe_block; + /* Run the _PRW methods and enable the runtime GPEs in the new block */ + + status = acpi_ev_initialize_gpe_block(node, gpe_block); + unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); @@ -793,8 +934,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Increment Index by the number of GPEs in this block */ - info->next_block_base_index += - (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH); + info->next_block_base_index += gpe_block->gpe_count; if (info->index < info->next_block_base_index) { /* diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index c98aa7c2d67c..541cbc1544d5 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 46adfa541cbc..008621c5ad85 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -82,8 +82,9 @@ acpi_ex_add_table(u32 table_index, struct acpi_namespace_node *parent_node, union acpi_operand_object **ddb_handle) { - acpi_status status; union acpi_operand_object *obj_desc; + acpi_status status; + acpi_owner_id owner_id; ACPI_FUNCTION_TRACE(ex_add_table); @@ -119,7 +120,14 @@ acpi_ex_add_table(u32 table_index, acpi_ns_exec_module_code_list(); acpi_ex_enter_interpreter(); - return_ACPI_STATUS(status); + /* Update GPEs for any new _PRW or _Lxx/_Exx methods. Ignore errors */ + + status = acpi_tb_get_owner_id(table_index, &owner_id); + if (ACPI_SUCCESS(status)) { + acpi_ev_update_gpes(owner_id); + } + + return_ACPI_STATUS(AE_OK); } /******************************************************************************* @@ -248,10 +256,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, status = acpi_get_table_by_index(table_index, &table); if (ACPI_SUCCESS(status)) { - ACPI_INFO((AE_INFO, - "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]", - table->signature, table->oem_id, - table->oem_table_id)); + ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); + acpi_tb_print_table_header(0, table); } /* Invoke table handler if present */ @@ -284,7 +290,7 @@ static acpi_status acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer) { acpi_status status; - acpi_integer value; + u64 value; u32 region_offset = 0; u32 i; @@ -490,7 +496,11 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, status = acpi_tb_add_table(&table_desc, &table_index); if (ACPI_FAILURE(status)) { - goto cleanup; + + /* Delete allocated table buffer */ + + acpi_tb_delete_table(&table_desc); + return_ACPI_STATUS(status); } /* @@ -521,6 +531,9 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, return_ACPI_STATUS(status); } + ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); + acpi_tb_print_table_header(0, table_desc.pointer); + /* Remove the reference by added by acpi_ex_store above */ acpi_ut_remove_reference(ddb_handle); @@ -533,13 +546,6 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, acpi_gbl_table_handler_context); } - cleanup: - if (ACPI_FAILURE(status)) { - - /* Delete allocated table buffer */ - - acpi_tb_delete_table(&table_desc); - } return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index 51d5f224f9fa..b73bc50c5b76 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -51,8 +51,7 @@ ACPI_MODULE_NAME("exconvrt") /* Local prototypes */ static u32 -acpi_ex_convert_to_ascii(acpi_integer integer, - u16 base, u8 * string, u8 max_length); +acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length); /******************************************************************************* * @@ -75,7 +74,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, { union acpi_operand_object *return_desc; u8 *pointer; - acpi_integer result; + u64 result; u32 i; u32 count; acpi_status status; @@ -155,7 +154,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, * Little endian is used, meaning that the first byte of the buffer * is the LSB of the integer */ - result |= (((acpi_integer) pointer[i]) << (i * 8)); + result |= (((u64) pointer[i]) << (i * 8)); } break; @@ -285,10 +284,9 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, ******************************************************************************/ static u32 -acpi_ex_convert_to_ascii(acpi_integer integer, - u16 base, u8 * string, u8 data_width) +acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width) { - acpi_integer digit; + u64 digit; u32 i; u32 j; u32 k = 0; @@ -531,10 +529,9 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, * (separated by commas or spaces) */ for (i = 0; i < obj_desc->buffer.length; i++) { - new_buf += acpi_ex_convert_to_ascii((acpi_integer) - obj_desc->buffer. - pointer[i], base, - new_buf, 1); + new_buf += acpi_ex_convert_to_ascii((u64) obj_desc-> + buffer.pointer[i], + base, new_buf, 1); *new_buf++ = separator; /* each separated by a comma or space */ } @@ -653,7 +650,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, default: ACPI_ERROR((AE_INFO, - "Bad destination type during conversion: %X", + "Bad destination type during conversion: 0x%X", destination_type)); status = AE_AML_INTERNAL; break; @@ -668,7 +665,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, default: ACPI_ERROR((AE_INFO, - "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", + "Unknown Target type ID 0x%X AmlOpcode 0x%X DestType %s", GET_CURRENT_ARG_TYPE(walk_state->op_info-> runtime_args), walk_state->opcode, diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c index 02b25d233d99..3c61b48c73f5 100644 --- a/drivers/acpi/acpica/excreate.c +++ b/drivers/acpi/acpica/excreate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -306,12 +306,12 @@ acpi_ex_create_region(u8 * aml_start, */ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && (region_space < ACPI_USER_REGION_BEGIN)) { - ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", + ACPI_ERROR((AE_INFO, "Invalid AddressSpace type 0x%X", region_space)); return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } - ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n", + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (0x%X)\n", acpi_ut_get_region_name(region_space), region_space)); /* Create the region descriptor */ diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c new file mode 100644 index 000000000000..be8c98b480d7 --- /dev/null +++ b/drivers/acpi/acpica/exdebug.c @@ -0,0 +1,261 @@ +/****************************************************************************** + * + * Module Name: exdebug - Support for stores to the AML Debug Object + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2010, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_EXECUTER +ACPI_MODULE_NAME("exdebug") + +#ifndef ACPI_NO_ERROR_MESSAGES +/******************************************************************************* + * + * FUNCTION: acpi_ex_do_debug_object + * + * PARAMETERS: source_desc - Object to be output to "Debug Object" + * Level - Indentation level (used for packages) + * Index - Current package element, zero if not pkg + * + * RETURN: None + * + * DESCRIPTION: Handles stores to the AML Debug Object. For example: + * Store(INT1, Debug) + * + * This function is not compiled if ACPI_NO_ERROR_MESSAGES is set. + * + * This function is only enabled if acpi_gbl_enable_aml_debug_object is set, or + * if ACPI_LV_DEBUG_OBJECT is set in the acpi_dbg_level. Thus, in the normal + * operational case, stores to the debug object are ignored but can be easily + * enabled if necessary. + * + ******************************************************************************/ +void +acpi_ex_do_debug_object(union acpi_operand_object *source_desc, + u32 level, u32 index) +{ + u32 i; + + ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); + + /* Output must be enabled via the debug_object global or the dbg_level */ + + if (!acpi_gbl_enable_aml_debug_object && + !(acpi_dbg_level & ACPI_LV_DEBUG_OBJECT)) { + return_VOID; + } + + /* + * Print line header as long as we are not in the middle of an + * object display + */ + if (!((level > 0) && index == 0)) { + acpi_os_printf("[ACPI Debug] %*s", level, " "); + } + + /* Display the index for package output only */ + + if (index > 0) { + acpi_os_printf("(%.2u) ", index - 1); + } + + if (!source_desc) { + acpi_os_printf("[Null Object]\n"); + return_VOID; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { + acpi_os_printf("%s ", + acpi_ut_get_object_type_name(source_desc)); + + if (!acpi_ut_valid_internal_object(source_desc)) { + acpi_os_printf("%p, Invalid Internal Object!\n", + source_desc); + return_VOID; + } + } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == + ACPI_DESC_TYPE_NAMED) { + acpi_os_printf("%s: %p\n", + acpi_ut_get_type_name(((struct + acpi_namespace_node *) + source_desc)->type), + source_desc); + return_VOID; + } else { + return_VOID; + } + + /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ + + switch (source_desc->common.type) { + case ACPI_TYPE_INTEGER: + + /* Output correct integer width */ + + if (acpi_gbl_integer_byte_width == 4) { + acpi_os_printf("0x%8.8X\n", + (u32)source_desc->integer.value); + } else { + acpi_os_printf("0x%8.8X%8.8X\n", + ACPI_FORMAT_UINT64(source_desc->integer. + value)); + } + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length); + acpi_ut_dump_buffer2(source_desc->buffer.pointer, + (source_desc->buffer.length < 256) ? + source_desc->buffer.length : 256, + DB_BYTE_DISPLAY); + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("[0x%.2X] \"%s\"\n", + source_desc->string.length, + source_desc->string.pointer); + break; + + case ACPI_TYPE_PACKAGE: + + acpi_os_printf("[Contains 0x%.2X Elements]\n", + source_desc->package.count); + + /* Output the entire contents of the package */ + + for (i = 0; i < source_desc->package.count; i++) { + acpi_ex_do_debug_object(source_desc->package. + elements[i], level + 4, i + 1); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("[%s] ", + acpi_ut_get_reference_name(source_desc)); + + /* Decode the reference */ + + switch (source_desc->reference.class) { + case ACPI_REFCLASS_INDEX: + + acpi_os_printf("0x%X\n", source_desc->reference.value); + break; + + case ACPI_REFCLASS_TABLE: + + /* Case for ddb_handle */ + + acpi_os_printf("Table Index 0x%X\n", + source_desc->reference.value); + return; + + default: + break; + } + + acpi_os_printf(" "); + + /* Check for valid node first, then valid object */ + + if (source_desc->reference.node) { + if (ACPI_GET_DESCRIPTOR_TYPE + (source_desc->reference.node) != + ACPI_DESC_TYPE_NAMED) { + acpi_os_printf + (" %p - Not a valid namespace node\n", + source_desc->reference.node); + } else { + acpi_os_printf("Node %p [%4.4s] ", + source_desc->reference.node, + (source_desc->reference.node)-> + name.ascii); + + switch ((source_desc->reference.node)->type) { + + /* These types have no attached object */ + + case ACPI_TYPE_DEVICE: + acpi_os_printf("Device\n"); + break; + + case ACPI_TYPE_THERMAL: + acpi_os_printf("Thermal Zone\n"); + break; + + default: + acpi_ex_do_debug_object((source_desc-> + reference. + node)->object, + level + 4, 0); + break; + } + } + } else if (source_desc->reference.object) { + if (ACPI_GET_DESCRIPTOR_TYPE + (source_desc->reference.object) == + ACPI_DESC_TYPE_NAMED) { + acpi_ex_do_debug_object(((struct + acpi_namespace_node *) + source_desc->reference. + object)->object, + level + 4, 0); + } else { + acpi_ex_do_debug_object(source_desc->reference. + object, level + 4, 0); + } + } + break; + + default: + + acpi_os_printf("%p\n", source_desc); + break; + } + + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); + return_VOID; +} +#endif diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index de3446372ddc..d39d438ba1e3 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index 1588a2d660e7..f17d2ff0031b 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -130,7 +130,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, /* Call the region handler for the read */ status = acpi_ex_access_region(obj_desc, 0, - ACPI_CAST_PTR(acpi_integer, + ACPI_CAST_PTR(u64, buffer_desc-> buffer.pointer), function); @@ -141,7 +141,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, /* * Allocate a buffer for the contents of the field. * - * If the field is larger than the size of an acpi_integer, create + * If the field is larger than the current integer width, create * a BUFFER to hold it. Otherwise, use an INTEGER. This allows * the use of arithmetic operators on the returned value if the * field size is equal or smaller than an Integer. @@ -281,7 +281,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, if (source_desc->buffer.length < length) { ACPI_ERROR((AE_INFO, - "SMBus or IPMI write requires Buffer of length %X, found length %X", + "SMBus or IPMI write requires Buffer of length %u, found length %u", length, source_desc->buffer.length)); return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); @@ -306,8 +306,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, * same buffer) */ status = acpi_ex_access_region(obj_desc, 0, - (acpi_integer *) buffer, - function); + (u64 *) buffer, function); acpi_ex_release_global_lock(obj_desc->common_field.field_flags); *result_desc = buffer_desc; diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index d7b3b418fb45..a6dc26f0b3be 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -55,11 +55,10 @@ ACPI_MODULE_NAME("exfldio") static acpi_status acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, u32 field_datum_byte_offset, - acpi_integer * value, u32 read_write); + u64 *value, u32 read_write); static u8 -acpi_ex_register_overflow(union acpi_operand_object *obj_desc, - acpi_integer value); +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, u64 value); static acpi_status acpi_ex_setup_region(union acpi_operand_object *obj_desc, @@ -95,7 +94,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, /* We must have a valid region */ if (rgn_desc->common.type != ACPI_TYPE_REGION) { - ACPI_ERROR((AE_INFO, "Needed Region, found type %X (%s)", + ACPI_ERROR((AE_INFO, "Needed Region, found type 0x%X (%s)", rgn_desc->common.type, acpi_ut_get_object_type_name(rgn_desc))); @@ -176,7 +175,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * byte, and a field with Dword access specified. */ ACPI_ERROR((AE_INFO, - "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)", + "Field [%4.4s] access width (%u bytes) too large for region [%4.4s] (length %u)", acpi_ut_get_node_name(obj_desc-> common_field.node), obj_desc->common_field.access_byte_width, @@ -190,7 +189,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * exceeds region length, indicate an error */ ACPI_ERROR((AE_INFO, - "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)", + "Field [%4.4s] Base+Offset+Width %u+%u+%u is beyond end of region [%4.4s] (length %u)", acpi_ut_get_node_name(obj_desc->common_field.node), obj_desc->common_field.base_byte_offset, field_datum_byte_offset, @@ -212,7 +211,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * field_datum_byte_offset - Byte offset of this datum within the * parent field * Value - Where to store value (must at least - * the size of acpi_integer) + * 64 bits) * Function - Read or Write flag plus other region- * dependent flags * @@ -224,8 +223,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, acpi_status acpi_ex_access_region(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 function) + u32 field_datum_byte_offset, u64 *value, u32 function) { acpi_status status; union acpi_operand_object *rgn_desc; @@ -283,13 +281,13 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, if (ACPI_FAILURE(status)) { if (status == AE_NOT_IMPLEMENTED) { ACPI_ERROR((AE_INFO, - "Region %s(%X) not implemented", + "Region %s(0x%X) not implemented", acpi_ut_get_region_name(rgn_desc->region. space_id), rgn_desc->region.space_id)); } else if (status == AE_NOT_EXIST) { ACPI_ERROR((AE_INFO, - "Region %s(%X) has no handler", + "Region %s(0x%X) has no handler", acpi_ut_get_region_name(rgn_desc->region. space_id), rgn_desc->region.space_id)); @@ -317,8 +315,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, ******************************************************************************/ static u8 -acpi_ex_register_overflow(union acpi_operand_object *obj_desc, - acpi_integer value) +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, u64 value) { if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) { @@ -329,7 +326,7 @@ acpi_ex_register_overflow(union acpi_operand_object *obj_desc, return (FALSE); } - if (value >= ((acpi_integer) 1 << obj_desc->common_field.bit_length)) { + if (value >= ((u64) 1 << obj_desc->common_field.bit_length)) { /* * The Value is larger than the maximum value that can fit into * the register. @@ -362,11 +359,10 @@ acpi_ex_register_overflow(union acpi_operand_object *obj_desc, static acpi_status acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer * value, u32 read_write) + u32 field_datum_byte_offset, u64 *value, u32 read_write) { acpi_status status; - acpi_integer local_value; + u64 local_value; ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset); @@ -439,8 +435,8 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, * the register */ if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj, - (acpi_integer) obj_desc-> - bank_field.value)) { + (u64) obj_desc->bank_field. + value)) { return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); } @@ -481,8 +477,8 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, * the register */ if (acpi_ex_register_overflow(obj_desc->index_field.index_obj, - (acpi_integer) obj_desc-> - index_field.value)) { + (u64) obj_desc->index_field. + value)) { return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); } @@ -512,7 +508,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, status = acpi_ex_extract_from_field(obj_desc->index_field. data_obj, value, - sizeof(acpi_integer)); + sizeof(u64)); } else { /* Write the datum to the data_register */ @@ -523,13 +519,13 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, status = acpi_ex_insert_into_field(obj_desc->index_field. data_obj, value, - sizeof(acpi_integer)); + sizeof(u64)); } break; default: - ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %X", + ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %u", obj_desc->common.type)); status = AE_AML_INTERNAL; break; @@ -571,13 +567,12 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, acpi_status acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, - acpi_integer mask, - acpi_integer field_value, - u32 field_datum_byte_offset) + u64 mask, + u64 field_value, u32 field_datum_byte_offset) { acpi_status status = AE_OK; - acpi_integer merged_value; - acpi_integer current_value; + u64 merged_value; + u64 current_value; ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask); @@ -587,7 +582,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, /* If the mask is all ones, we don't need to worry about the update rule */ - if (mask != ACPI_INTEGER_MAX) { + if (mask != ACPI_UINT64_MAX) { /* Decode the update rule */ @@ -635,7 +630,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, default: ACPI_ERROR((AE_INFO, - "Unknown UpdateRule value: %X", + "Unknown UpdateRule value: 0x%X", (obj_desc->common_field. field_flags & AML_FIELD_UPDATE_RULE_MASK))); @@ -678,8 +673,8 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, void *buffer, u32 buffer_length) { acpi_status status; - acpi_integer raw_datum; - acpi_integer merged_datum; + u64 raw_datum; + u64 merged_datum; u32 field_offset = 0; u32 buffer_offset = 0; u32 buffer_tail_bits; @@ -694,7 +689,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, if (buffer_length < ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) { ACPI_ERROR((AE_INFO, - "Field size %X (bits) is too large for buffer (%X)", + "Field size %u (bits) is too large for buffer (%u)", obj_desc->common_field.bit_length, buffer_length)); return_ACPI_STATUS(AE_BUFFER_OVERFLOW); @@ -804,10 +799,10 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, void *buffer, u32 buffer_length) { acpi_status status; - acpi_integer mask; - acpi_integer width_mask; - acpi_integer merged_datum; - acpi_integer raw_datum = 0; + u64 mask; + u64 width_mask; + u64 merged_datum; + u64 raw_datum = 0; u32 field_offset = 0; u32 buffer_offset = 0; u32 buffer_tail_bits; @@ -855,7 +850,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, * shift operator */ if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) { - width_mask = ACPI_INTEGER_MAX; + width_mask = ACPI_UINT64_MAX; } else { width_mask = ACPI_MASK_BITS_ABOVE(obj_desc->common_field. diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c index 998eac329937..95db4be0877b 100644 --- a/drivers/acpi/acpica/exmisc.c +++ b/drivers/acpi/acpica/exmisc.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -99,7 +99,7 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", + ACPI_ERROR((AE_INFO, "Unknown Reference Class 0x%2.2X", obj_desc->reference.class)); return_ACPI_STATUS(AE_AML_INTERNAL); } @@ -115,7 +115,7 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_ERROR((AE_INFO, "Invalid descriptor type %X", + ACPI_ERROR((AE_INFO, "Invalid descriptor type 0x%X", ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); return_ACPI_STATUS(AE_TYPE); } @@ -276,7 +276,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, break; default: - ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_ERROR((AE_INFO, "Invalid object type: 0x%X", operand0->common.type)); status = AE_AML_INTERNAL; } @@ -378,7 +378,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Invalid object type, should not happen here */ - ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_ERROR((AE_INFO, "Invalid object type: 0x%X", operand0->common.type)); status = AE_AML_INTERNAL; goto cleanup; @@ -409,8 +409,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, * ******************************************************************************/ -acpi_integer -acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) +u64 acpi_ex_do_math_op(u16 opcode, u64 integer0, u64 integer1) { ACPI_FUNCTION_ENTRY(); @@ -498,8 +497,7 @@ acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) acpi_status acpi_ex_do_logical_numeric_op(u16 opcode, - acpi_integer integer0, - acpi_integer integer1, u8 * logical_result) + u64 integer0, u64 integer1, u8 *logical_result) { acpi_status status = AE_OK; u8 local_result = FALSE; @@ -564,8 +562,8 @@ acpi_ex_do_logical_op(u16 opcode, union acpi_operand_object *operand1, u8 * logical_result) { union acpi_operand_object *local_operand1 = operand1; - acpi_integer integer0; - acpi_integer integer1; + u64 integer0; + u64 integer1; u32 length0; u32 length1; acpi_status status = AE_OK; diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index 3c456bd575d0..f73be97043c0 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -85,10 +85,10 @@ void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) (obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next; /* - * Migrate the previous sync level associated with this mutex to the - * previous mutex on the list so that it may be preserved. This handles - * the case where several mutexes have been acquired at the same level, - * but are not released in opposite order. + * Migrate the previous sync level associated with this mutex to + * the previous mutex on the list so that it may be preserved. + * This handles the case where several mutexes have been acquired + * at the same level, but are not released in opposite order. */ (obj_desc->mutex.prev)->mutex.original_sync_level = obj_desc->mutex.original_sync_level; @@ -101,8 +101,8 @@ void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) * * FUNCTION: acpi_ex_link_mutex * - * PARAMETERS: obj_desc - The mutex to be linked - * Thread - Current executing thread object + * PARAMETERS: obj_desc - The mutex to be linked + * Thread - Current executing thread object * * RETURN: None * @@ -138,9 +138,9 @@ acpi_ex_link_mutex(union acpi_operand_object *obj_desc, * * FUNCTION: acpi_ex_acquire_mutex_object * - * PARAMETERS: time_desc - Timeout in milliseconds + * PARAMETERS: Timeout - Timeout in milliseconds * obj_desc - Mutex object - * Thread - Current thread state + * thread_id - Current thread state * * RETURN: Status * @@ -234,7 +234,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Must have a valid thread ID */ + /* Must have a valid thread state struct */ if (!walk_state->thread) { ACPI_ERROR((AE_INFO, @@ -249,7 +249,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, */ if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)", + "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%u)", acpi_ut_get_node_name(obj_desc->mutex.node), walk_state->thread->current_sync_level)); return_ACPI_STATUS(AE_AML_MUTEX_ORDER); @@ -359,6 +359,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, { acpi_status status = AE_OK; u8 previous_sync_level; + struct acpi_thread_state *owner_thread; ACPI_FUNCTION_TRACE(ex_release_mutex); @@ -366,17 +367,18 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, return_ACPI_STATUS(AE_BAD_PARAMETER); } + owner_thread = obj_desc->mutex.owner_thread; + /* The mutex must have been previously acquired in order to release it */ - if (!obj_desc->mutex.owner_thread) { + if (!owner_thread) { ACPI_ERROR((AE_INFO, "Cannot release Mutex [%4.4s], not acquired", acpi_ut_get_node_name(obj_desc->mutex.node))); return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); } - /* Must have a valid thread ID */ - + /* Must have a valid thread. */ if (!walk_state->thread) { ACPI_ERROR((AE_INFO, "Cannot release Mutex [%4.4s], null thread info", @@ -388,16 +390,13 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, * The Mutex is owned, but this thread must be the owner. * Special case for Global Lock, any thread can release */ - if ((obj_desc->mutex.owner_thread->thread_id != - walk_state->thread->thread_id) - && (obj_desc != acpi_gbl_global_lock_mutex)) { + if ((owner_thread->thread_id != walk_state->thread->thread_id) && + (obj_desc != acpi_gbl_global_lock_mutex)) { ACPI_ERROR((AE_INFO, "Thread %p cannot release Mutex [%4.4s] acquired by thread %p", ACPI_CAST_PTR(void, walk_state->thread->thread_id), acpi_ut_get_node_name(obj_desc->mutex.node), - ACPI_CAST_PTR(void, - obj_desc->mutex.owner_thread-> - thread_id))); + ACPI_CAST_PTR(void, owner_thread->thread_id))); return_ACPI_STATUS(AE_AML_NOT_OWNER); } @@ -408,10 +407,9 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, * different level can only mean that the mutex ordering rule is being * violated. This behavior is clarified in ACPI 4.0 specification. */ - if (obj_desc->mutex.sync_level != - walk_state->thread->current_sync_level) { + if (obj_desc->mutex.sync_level != owner_thread->current_sync_level) { ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d", + "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %u current %u", acpi_ut_get_node_name(obj_desc->mutex.node), obj_desc->mutex.sync_level, walk_state->thread->current_sync_level)); @@ -424,7 +422,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, * acquired, but are not released in reverse order. */ previous_sync_level = - walk_state->thread->acquired_mutex_list->mutex.original_sync_level; + owner_thread->acquired_mutex_list->mutex.original_sync_level; status = acpi_ex_release_mutex_object(obj_desc); if (ACPI_FAILURE(status)) { @@ -435,8 +433,9 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, /* Restore the previous sync_level */ - walk_state->thread->current_sync_level = previous_sync_level; + owner_thread->current_sync_level = previous_sync_level; } + return_ACPI_STATUS(status); } @@ -444,7 +443,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, * * FUNCTION: acpi_ex_release_all_mutexes * - * PARAMETERS: Thread - Current executing thread object + * PARAMETERS: Thread - Current executing thread object * * RETURN: Status * diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c index ffdae122d94a..d11e539ef763 100644 --- a/drivers/acpi/acpica/exnames.c +++ b/drivers/acpi/acpica/exnames.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -102,7 +102,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) name_string = ACPI_ALLOCATE(size_needed); if (!name_string) { ACPI_ERROR((AE_INFO, - "Could not allocate size %d", size_needed)); + "Could not allocate size %u", size_needed)); return_PTR(NULL); } @@ -216,7 +216,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) */ status = AE_AML_BAD_NAME; ACPI_ERROR((AE_INFO, - "Bad character %02x in name, at %p", + "Bad character 0x%02x in name, at %p", *aml_address, aml_address)); } diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 752fe48b2d20..84e4d185aa25 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -110,7 +110,7 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; break; @@ -173,7 +173,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) case AML_SLEEP_OP: /* Sleep (msec_time) */ - status = acpi_ex_system_do_suspend(operand[0]->integer.value); + status = acpi_ex_system_do_sleep(operand[0]->integer.value); break; case AML_STALL_OP: /* Stall (usec_time) */ @@ -189,7 +189,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; break; @@ -229,7 +229,7 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -261,8 +261,8 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc2 = NULL; u32 temp32; u32 i; - acpi_integer power_of_ten; - acpi_integer digit; + u64 power_of_ten; + u64 digit; ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); @@ -362,7 +362,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* Sum the digit into the result with the current power of 10 */ return_desc->integer.value += - (((acpi_integer) temp32) * power_of_ten); + (((u64) temp32) * power_of_ten); /* Shift to next BCD digit */ @@ -392,14 +392,14 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) * remainder from above */ return_desc->integer.value |= - (((acpi_integer) temp32) << ACPI_MUL_4(i)); + (((u64) temp32) << ACPI_MUL_4(i)); } /* Overflow if there is any data left in Digit */ if (digit > 0) { ACPI_ERROR((AE_INFO, - "Integer too large to convert to BCD: %8.8X%8.8X", + "Integer too large to convert to BCD: 0x%8.8X%8.8X", ACPI_FORMAT_UINT64(operand[0]-> integer.value))); status = AE_AML_NUMERIC_OVERFLOW; @@ -439,7 +439,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* The object exists in the namespace, return TRUE */ - return_desc->integer.value = ACPI_INTEGER_MAX; + return_desc->integer.value = ACPI_UINT64_MAX; goto cleanup; default: @@ -540,7 +540,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -589,7 +589,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc = NULL; acpi_status status = AE_OK; u32 type; - acpi_integer value; + u64 value; ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); @@ -610,7 +610,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) * return_desc->Integer.Value is initially == 0 (FALSE) from above. */ if (!operand[0]->integer.value) { - return_desc->integer.value = ACPI_INTEGER_MAX; + return_desc->integer.value = ACPI_UINT64_MAX; } break; @@ -979,7 +979,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: ACPI_ERROR((AE_INFO, - "Unknown Index TargetType %X in reference object %p", + "Unknown Index TargetType 0x%X in reference object %p", operand[0]->reference. target_type, operand[0])); status = AE_AML_OPERAND_TYPE; @@ -1007,7 +1007,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: ACPI_ERROR((AE_INFO, - "Unknown class in reference(%p) - %2.2X", + "Unknown class in reference(%p) - 0x%2.2X", operand[0], operand[0]->reference.class)); @@ -1019,7 +1019,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c index 85d95c92dfd3..10e104cf0fb9 100644 --- a/drivers/acpi/acpica/exoparg2.c +++ b/drivers/acpi/acpica/exoparg2.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -119,33 +119,6 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) status = AE_AML_OPERAND_TYPE; break; } -#ifdef ACPI_GPE_NOTIFY_CHECK - /* - * GPE method wake/notify check. Here, we want to ensure that we - * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx - * GPE method during system runtime. If we do, the GPE is marked - * as "wake-only" and disabled. - * - * 1) Is the Notify() value == device_wake? - * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) - * 3) Did the original GPE happen at system runtime? - * (versus during wake) - * - * If all three cases are true, this is a wake-only GPE that should - * be disabled at runtime. - */ - if (value == 2) { /* device_wake */ - status = - acpi_ev_check_for_wake_only_gpe(walk_state-> - gpe_event_info); - if (ACPI_FAILURE(status)) { - - /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ - - return_ACPI_STATUS(AE_OK) - } - } -#endif /* * Dispatch the notify to the appropriate handler @@ -159,7 +132,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; } @@ -224,7 +197,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -282,7 +255,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) { union acpi_operand_object **operand = &walk_state->operands[0]; union acpi_operand_object *return_desc = NULL; - acpi_integer index; + u64 index; acpi_status status = AE_OK; acpi_size length; @@ -441,7 +414,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Index (%X%8.8X) is beyond end of object", + "Index (0x%8.8X%8.8X) is beyond end of object", ACPI_FORMAT_UINT64(index))); goto cleanup; } @@ -464,7 +437,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; break; @@ -572,7 +545,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -584,7 +557,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) * Default is FALSE (zero) */ if (logical_result) { - return_desc->integer.value = ACPI_INTEGER_MAX; + return_desc->integer.value = ACPI_UINT64_MAX; } cleanup: diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c index 253f9e122584..7a08d23befcd 100644 --- a/drivers/acpi/acpica/exoparg3.c +++ b/drivers/acpi/acpica/exoparg3.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -119,7 +119,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -148,7 +148,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc = NULL; char *buffer = NULL; acpi_status status = AE_OK; - acpi_integer index; + u64 index; acpi_size length; ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R, @@ -244,7 +244,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c index 295542e6bd51..4b50730cf9a0 100644 --- a/drivers/acpi/acpica/exoparg6.c +++ b/drivers/acpi/acpica/exoparg6.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -218,7 +218,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) union acpi_operand_object **operand = &walk_state->operands[0]; union acpi_operand_object *return_desc = NULL; acpi_status status = AE_OK; - acpi_integer index; + u64 index; union acpi_operand_object *this_element; ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R, @@ -245,7 +245,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) index = operand[5]->integer.value; if (index >= operand[0]->package.count) { ACPI_ERROR((AE_INFO, - "Index (%X%8.8X) beyond package end (%X)", + "Index (0x%8.8X%8.8X) beyond package end (0x%X)", ACPI_FORMAT_UINT64(index), operand[0]->package.count)); status = AE_AML_PACKAGE_LIMIT; @@ -253,9 +253,9 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) } /* Create an integer for the return value */ - /* Default return value is ACPI_INTEGER_MAX if no match found */ + /* Default return value is ACPI_UINT64_MAX if no match found */ - return_desc = acpi_ut_create_integer_object(ACPI_INTEGER_MAX); + return_desc = acpi_ut_create_integer_object(ACPI_UINT64_MAX); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -270,7 +270,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) * * Upon finding a match, the loop will terminate via "break" at * the bottom. If it terminates "normally", match_value will be - * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no + * ACPI_UINT64_MAX (Ones) (its initial value) indicating that no * match was found. */ for (; index < operand[0]->package.count; index++) { @@ -314,7 +314,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c index 52fec07064f0..25059dace0ad 100644 --- a/drivers/acpi/acpica/exprep.c +++ b/drivers/acpi/acpica/exprep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -275,7 +275,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, default: /* Invalid field access type */ - ACPI_ERROR((AE_INFO, "Unknown field access type %X", access)); + ACPI_ERROR((AE_INFO, "Unknown field access type 0x%X", access)); return_UINT32(0); } @@ -430,7 +430,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) type = acpi_ns_get_type(info->region_node); if (type != ACPI_TYPE_REGION) { ACPI_ERROR((AE_INFO, - "Needed Region, found type %X (%s)", + "Needed Region, found type 0x%X (%s)", type, acpi_ut_get_type_name(type))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); @@ -468,6 +468,23 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->field.region_obj); + /* allow full data read from EC address space */ + if (obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_EC) { + if (obj_desc->common_field.bit_length > 8) { + unsigned width = + ACPI_ROUND_BITS_UP_TO_BYTES( + obj_desc->common_field.bit_length); + // access_bit_width is u8, don't overflow it + if (width > 8) + width = 8; + obj_desc->common_field.access_byte_width = + width; + obj_desc->common_field.access_bit_width = + 8 * width; + } + } + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", obj_desc->field.start_field_bit_offset, diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c index 2bd83ac57c3a..531000fc77d2 100644 --- a/drivers/acpi/acpica/exregion.c +++ b/drivers/acpi/acpica/exregion.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -70,7 +70,7 @@ acpi_status acpi_ex_system_memory_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { acpi_status status = AE_OK; @@ -105,7 +105,7 @@ acpi_ex_system_memory_space_handler(u32 function, break; default: - ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", + ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %u", bit_width)); return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } @@ -115,8 +115,7 @@ acpi_ex_system_memory_space_handler(u32 function, * Hardware does not support non-aligned data transfers, we must verify * the request. */ - (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, - &remainder); + (void)acpi_ut_short_divide((u64) address, length, NULL, &remainder); if (remainder != 0) { return_ACPI_STATUS(AE_AML_ALIGNMENT); } @@ -128,10 +127,9 @@ acpi_ex_system_memory_space_handler(u32 function, * 2) Address beyond the current mapping? */ if ((address < mem_info->mapped_physical_address) || - (((acpi_integer) address + length) > ((acpi_integer) - mem_info-> - mapped_physical_address + - mem_info->mapped_length))) { + (((u64) address + length) > ((u64) + mem_info->mapped_physical_address + + mem_info->mapped_length))) { /* * The request cannot be resolved by the current memory mapping; * Delete the existing mapping and create a new one. @@ -175,7 +173,7 @@ acpi_ex_system_memory_space_handler(u32 function, mem_info->mapped_logical_address = acpi_os_map_memory((acpi_physical_address) address, map_length); if (!mem_info->mapped_logical_address) { ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X%8.8X, size %X", + "Could not map memory at 0x%8.8X%8.8X, size %u", ACPI_FORMAT_NATIVE_UINT(address), (u32) map_length)); mem_info->mapped_length = 0; @@ -193,8 +191,7 @@ acpi_ex_system_memory_space_handler(u32 function, * access */ logical_addr_ptr = mem_info->mapped_logical_address + - ((acpi_integer) address - - (acpi_integer) mem_info->mapped_physical_address); + ((u64) address - (u64) mem_info->mapped_physical_address); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", @@ -215,19 +212,19 @@ acpi_ex_system_memory_space_handler(u32 function, *value = 0; switch (bit_width) { case 8: - *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); + *value = (u64) ACPI_GET8(logical_addr_ptr); break; case 16: - *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); + *value = (u64) ACPI_GET16(logical_addr_ptr); break; case 32: - *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); + *value = (u64) ACPI_GET32(logical_addr_ptr); break; case 64: - *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); + *value = (u64) ACPI_GET64(logical_addr_ptr); break; default: @@ -291,7 +288,7 @@ acpi_status acpi_ex_system_io_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { acpi_status status = AE_OK; @@ -350,7 +347,7 @@ acpi_status acpi_ex_pci_config_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { acpi_status status = AE_OK; @@ -425,7 +422,7 @@ acpi_status acpi_ex_cmos_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { acpi_status status = AE_OK; @@ -457,7 +454,7 @@ acpi_status acpi_ex_pci_bar_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { acpi_status status = AE_OK; @@ -489,13 +486,15 @@ acpi_status acpi_ex_data_table_space_handler(u32 function, acpi_physical_address address, u32 bit_width, - acpi_integer * value, + u64 *value, void *handler_context, void *region_context) { ACPI_FUNCTION_TRACE(ex_data_table_space_handler); - /* Perform the memory read or write */ - + /* + * Perform the memory read or write. The bit_width was already + * validated. + */ switch (function) { case ACPI_READ: @@ -505,9 +504,14 @@ acpi_ex_data_table_space_handler(u32 function, break; case ACPI_WRITE: + + ACPI_MEMCPY(ACPI_PHYSADDR_TO_PTR(address), + ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width)); + break; + default: - return_ACPI_STATUS(AE_SUPPORT); + return_ACPI_STATUS(AE_BAD_PARAMETER); } return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index 607958ff467c..1fa4289a687e 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -252,7 +252,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* No named references are allowed here */ ACPI_ERROR((AE_INFO, - "Unsupported Reference type %X", + "Unsupported Reference type 0x%X", source_desc->reference.class)); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); @@ -264,7 +264,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* Default case is for unknown types */ ACPI_ERROR((AE_INFO, - "Node %p - Unknown object type %X", + "Node %p - Unknown object type 0x%X", node, entry_type)); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c index c93b54ce7f78..7ca35ea8acea 100644 --- a/drivers/acpi/acpica/exresolv.c +++ b/drivers/acpi/acpica/exresolv.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -231,7 +231,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, /* Invalid reference object */ ACPI_ERROR((AE_INFO, - "Unknown TargetType %X in Index/Reference object %p", + "Unknown TargetType 0x%X in Index/Reference object %p", stack_desc->reference.target_type, stack_desc)); status = AE_AML_INTERNAL; @@ -273,8 +273,8 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, default: ACPI_ERROR((AE_INFO, - "Unknown Reference type %X in %p", ref_type, - stack_desc)); + "Unknown Reference type 0x%X in %p", + ref_type, stack_desc)); status = AE_AML_INTERNAL; break; } @@ -403,7 +403,8 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]", + ACPI_ERROR((AE_INFO, + "Not a namespace node %p [%s]", node, acpi_ut_get_descriptor_name(node))); return_ACPI_STATUS(AE_AML_INTERNAL); @@ -507,7 +508,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, default: ACPI_ERROR((AE_INFO, - "Unknown Reference Class %2.2X", + "Unknown Reference Class 0x%2.2X", obj_desc->reference.class)); return_ACPI_STATUS(AE_AML_INTERNAL); } diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c index 5c729a9e9131..8c97cfd6a0fd 100644 --- a/drivers/acpi/acpica/exresop.c +++ b/drivers/acpi/acpica/exresop.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -153,7 +153,7 @@ acpi_ex_resolve_operands(u16 opcode, arg_types = op_info->runtime_args; if (arg_types == ARGI_INVALID_OPCODE) { - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode)); + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", opcode)); return_ACPI_STATUS(AE_AML_INTERNAL); } @@ -218,7 +218,7 @@ acpi_ex_resolve_operands(u16 opcode, if (!acpi_ut_valid_object_type(object_type)) { ACPI_ERROR((AE_INFO, - "Bad operand object type [%X]", + "Bad operand object type [0x%X]", object_type)); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); @@ -253,7 +253,7 @@ acpi_ex_resolve_operands(u16 opcode, default: ACPI_ERROR((AE_INFO, - "Unknown Reference Class %2.2X in %p", + "Unknown Reference Class 0x%2.2X in %p", obj_desc->reference.class, obj_desc)); @@ -665,7 +665,7 @@ acpi_ex_resolve_operands(u16 opcode, /* Unknown type */ ACPI_ERROR((AE_INFO, - "Internal - Unknown ARGI (required operand) type %X", + "Internal - Unknown ARGI (required operand) type 0x%X", this_arg_type)); return_ACPI_STATUS(AE_BAD_PARAMETER); diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c index 6efd07a4f779..1624436ba4c5 100644 --- a/drivers/acpi/acpica/exstore.c +++ b/drivers/acpi/acpica/exstore.c @@ -1,4 +1,3 @@ - /****************************************************************************** * * Module Name: exstore - AML Interpreter object store support @@ -6,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -53,10 +52,6 @@ ACPI_MODULE_NAME("exstore") /* Local prototypes */ -static void -acpi_ex_do_debug_object(union acpi_operand_object *source_desc, - u32 level, u32 index); - static acpi_status acpi_ex_store_object_to_index(union acpi_operand_object *val_desc, union acpi_operand_object *dest_desc, @@ -64,215 +59,6 @@ acpi_ex_store_object_to_index(union acpi_operand_object *val_desc, /******************************************************************************* * - * FUNCTION: acpi_ex_do_debug_object - * - * PARAMETERS: source_desc - Value to be stored - * Level - Indentation level (used for packages) - * Index - Current package element, zero if not pkg - * - * RETURN: None - * - * DESCRIPTION: Handles stores to the Debug Object. - * - ******************************************************************************/ - -static void -acpi_ex_do_debug_object(union acpi_operand_object *source_desc, - u32 level, u32 index) -{ - u32 i; - - ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); - - /* Print line header as long as we are not in the middle of an object display */ - - if (!((level > 0) && index == 0)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", - level, " ")); - } - - /* Display index for package output only */ - - if (index > 0) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "(%.2u) ", index - 1)); - } - - if (!source_desc) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n")); - return_VOID; - } - - if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ", - acpi_ut_get_object_type_name - (source_desc))); - - if (!acpi_ut_valid_internal_object(source_desc)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "%p, Invalid Internal Object!\n", - source_desc)); - return_VOID; - } - } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == - ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n", - acpi_ut_get_type_name(((struct - acpi_namespace_node - *)source_desc)-> - type), - source_desc)); - return_VOID; - } else { - return_VOID; - } - - /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ - - switch (source_desc->common.type) { - case ACPI_TYPE_INTEGER: - - /* Output correct integer width */ - - if (acpi_gbl_integer_byte_width == 4) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n", - (u32) source_desc->integer. - value)); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "0x%8.8X%8.8X\n", - ACPI_FORMAT_UINT64(source_desc-> - integer. - value))); - } - break; - - case ACPI_TYPE_BUFFER: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n", - (u32) source_desc->buffer.length)); - ACPI_DUMP_BUFFER(source_desc->buffer.pointer, - (source_desc->buffer.length < - 256) ? source_desc->buffer.length : 256); - break; - - case ACPI_TYPE_STRING: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n", - source_desc->string.length, - source_desc->string.pointer)); - break; - - case ACPI_TYPE_PACKAGE: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "[Contains 0x%.2X Elements]\n", - source_desc->package.count)); - - /* Output the entire contents of the package */ - - for (i = 0; i < source_desc->package.count; i++) { - acpi_ex_do_debug_object(source_desc->package. - elements[i], level + 4, i + 1); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ", - acpi_ut_get_reference_name(source_desc))); - - /* Decode the reference */ - - switch (source_desc->reference.class) { - case ACPI_REFCLASS_INDEX: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n", - source_desc->reference.value)); - break; - - case ACPI_REFCLASS_TABLE: - - /* Case for ddb_handle */ - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "Table Index 0x%X\n", - source_desc->reference.value)); - return; - - default: - break; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " ")); - - /* Check for valid node first, then valid object */ - - if (source_desc->reference.node) { - if (ACPI_GET_DESCRIPTOR_TYPE - (source_desc->reference.node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - " %p - Not a valid namespace node\n", - source_desc->reference. - node)); - } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, - "Node %p [%4.4s] ", - source_desc->reference. - node, - (source_desc->reference. - node)->name.ascii)); - - switch ((source_desc->reference.node)->type) { - - /* These types have no attached object */ - - case ACPI_TYPE_DEVICE: - acpi_os_printf("Device\n"); - break; - - case ACPI_TYPE_THERMAL: - acpi_os_printf("Thermal Zone\n"); - break; - - default: - acpi_ex_do_debug_object((source_desc-> - reference. - node)->object, - level + 4, 0); - break; - } - } - } else if (source_desc->reference.object) { - if (ACPI_GET_DESCRIPTOR_TYPE - (source_desc->reference.object) == - ACPI_DESC_TYPE_NAMED) { - acpi_ex_do_debug_object(((struct - acpi_namespace_node *) - source_desc->reference. - object)->object, - level + 4, 0); - } else { - acpi_ex_do_debug_object(source_desc->reference. - object, level + 4, 0); - } - } - break; - - default: - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n", - source_desc)); - break; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); - return_VOID; -} - -/******************************************************************************* - * * FUNCTION: acpi_ex_store * * PARAMETERS: *source_desc - Value to be stored @@ -402,12 +188,12 @@ acpi_ex_store(union acpi_operand_object *source_desc, source_desc, acpi_ut_get_object_type_name(source_desc))); - acpi_ex_do_debug_object(source_desc, 0, 0); + ACPI_DEBUG_OBJECT(source_desc, 0, 0); break; default: - ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X", + ACPI_ERROR((AE_INFO, "Unknown Reference Class 0x%2.2X", ref_desc->reference.class)); ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO); diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c index 608e838d537e..d4af684620ca 100644 --- a/drivers/acpi/acpica/exstoren.c +++ b/drivers/acpi/acpica/exstoren.c @@ -7,7 +7,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 257706e7734f..e972b667b09b 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index 3d00b9357233..675aaa91a770 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -170,7 +170,7 @@ acpi_status acpi_ex_system_do_stall(u32 how_long) * (ACPI specifies 100 usec as max, but this gives some slack in * order to support existing BIOSs) */ - ACPI_ERROR((AE_INFO, "Time parameter is too large (%d)", + ACPI_ERROR((AE_INFO, "Time parameter is too large (%u)", how_long)); status = AE_AML_OPERAND_VALUE; } else { @@ -182,18 +182,18 @@ acpi_status acpi_ex_system_do_stall(u32 how_long) /******************************************************************************* * - * FUNCTION: acpi_ex_system_do_suspend + * FUNCTION: acpi_ex_system_do_sleep * - * PARAMETERS: how_long - The amount of time to suspend, + * PARAMETERS: how_long - The amount of time to sleep, * in milliseconds * * RETURN: None * - * DESCRIPTION: Suspend running thread for specified amount of time. + * DESCRIPTION: Sleep the running thread for specified amount of time. * ******************************************************************************/ -acpi_status acpi_ex_system_do_suspend(acpi_integer how_long) +acpi_status acpi_ex_system_do_sleep(u64 how_long) { ACPI_FUNCTION_ENTRY(); @@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_suspend(acpi_integer how_long) acpi_ex_relinquish_interpreter(); + /* + * For compatibility with other ACPI implementations and to prevent + * accidental deep sleeps, limit the sleep time to something reasonable. + */ + if (how_long > ACPI_MAX_SLEEP) { + how_long = ACPI_MAX_SLEEP; + } + acpi_os_sleep(how_long); /* And now we must get the interpreter again */ diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index 7d41f99f7052..74c24d517f81 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -67,7 +67,7 @@ ACPI_MODULE_NAME("exutils") /* Local prototypes */ -static u32 acpi_ex_digits_needed(acpi_integer value, u32 base); +static u32 acpi_ex_digits_needed(u64 value, u32 base); #ifndef ACPI_NO_METHOD_EXECUTION /******************************************************************************* @@ -230,7 +230,7 @@ void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc) * We are running a method that exists in a 32-bit ACPI table. * Truncate the value to 32 bits by zeroing out the upper 32-bit field */ - obj_desc->integer.value &= (acpi_integer) ACPI_UINT32_MAX; + obj_desc->integer.value &= (u64) ACPI_UINT32_MAX; } } @@ -327,14 +327,14 @@ void acpi_ex_release_global_lock(u32 field_flags) * ******************************************************************************/ -static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) +static u32 acpi_ex_digits_needed(u64 value, u32 base) { u32 num_digits; - acpi_integer current_value; + u64 current_value; ACPI_FUNCTION_TRACE(ex_digits_needed); - /* acpi_integer is unsigned, so we don't worry about a '-' prefix */ + /* u64 is unsigned, so we don't worry about a '-' prefix */ if (value == 0) { return_UINT32(1); @@ -370,7 +370,7 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) * ******************************************************************************/ -void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id) +void acpi_ex_eisa_id_to_string(char *out_string, u64 compressed_id) { u32 swapped_id; @@ -394,10 +394,10 @@ void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id) (char)(0x40 + (((unsigned long)swapped_id >> 26) & 0x1F)); out_string[1] = (char)(0x40 + ((swapped_id >> 21) & 0x1F)); out_string[2] = (char)(0x40 + ((swapped_id >> 16) & 0x1F)); - out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 12); - out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 8); - out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 4); - out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 0); + out_string[3] = acpi_ut_hex_to_ascii_char((u64) swapped_id, 12); + out_string[4] = acpi_ut_hex_to_ascii_char((u64) swapped_id, 8); + out_string[5] = acpi_ut_hex_to_ascii_char((u64) swapped_id, 4); + out_string[6] = acpi_ut_hex_to_ascii_char((u64) swapped_id, 0); out_string[7] = 0; } @@ -418,7 +418,7 @@ void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id) * ******************************************************************************/ -void acpi_ex_integer_to_string(char *out_string, acpi_integer value) +void acpi_ex_integer_to_string(char *out_string, u64 value) { u32 count; u32 digits_needed; diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c index 9af361a191e7..b44274a0b62c 100644 --- a/drivers/acpi/acpica/hwacpi.c +++ b/drivers/acpi/acpica/hwacpi.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -63,7 +63,6 @@ acpi_status acpi_hw_set_mode(u32 mode) { acpi_status status; - u32 retry; ACPI_FUNCTION_TRACE(hw_set_mode); @@ -125,24 +124,7 @@ acpi_status acpi_hw_set_mode(u32 mode) return_ACPI_STATUS(status); } - /* - * Some hardware takes a LONG time to switch modes. Give them 3 sec to - * do so, but allow faster systems to proceed more quickly. - */ - retry = 3000; - while (retry) { - if (acpi_hw_get_mode() == mode) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Mode %X successfully enabled\n", - mode)); - return_ACPI_STATUS(AE_OK); - } - acpi_os_stall(1000); - retry--; - } - - ACPI_ERROR((AE_INFO, "Hardware did not change modes")); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + return_ACPI_STATUS(AE_OK); } /******************************************************************************* diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index c28c41b3180b..3450309c2786 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -57,21 +57,47 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /****************************************************************************** * - * FUNCTION: acpi_hw_low_disable_gpe + * FUNCTION: acpi_hw_gpe_register_bit + * + * PARAMETERS: gpe_event_info - Info block for the GPE + * gpe_register_info - Info block for the GPE register + * + * RETURN: Status + * + * DESCRIPTION: Compute GPE enable mask with one bit corresponding to the given + * GPE set. + * + ******************************************************************************/ + +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info) +{ + return (u32)1 << (gpe_event_info->gpe_number - + gpe_register_info->base_gpe_number); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_low_set_gpe * * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled + * action - Enable or disable * * RETURN: Status * - * DESCRIPTION: Disable a single GPE in the enable register. + * DESCRIPTION: Enable or disable a single GPE in its enable register. * ******************************************************************************/ -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action) { struct acpi_gpe_register_info *gpe_register_info; acpi_status status; u32 enable_mask; + u32 register_bit; + + ACPI_FUNCTION_ENTRY(); /* Get the info block for the entire GPE register */ @@ -87,11 +113,27 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) return (status); } - /* Clear just the bit that corresponds to this GPE */ + /* Set ot clear just the bit that corresponds to this GPE */ + + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); + switch (action) { + case ACPI_GPE_COND_ENABLE: + if (!(register_bit & gpe_register_info->enable_for_run)) + return (AE_BAD_PARAMETER); - ACPI_CLEAR_BIT(enable_mask, ((u32)1 << - (gpe_event_info->gpe_number - - gpe_register_info->base_gpe_number))); + case ACPI_GPE_ENABLE: + ACPI_SET_BIT(enable_mask, register_bit); + break; + + case ACPI_GPE_DISABLE: + ACPI_CLEAR_BIT(enable_mask, register_bit); + break; + + default: + ACPI_ERROR((AE_INFO, "Invalid action\n")); + return (AE_BAD_PARAMETER); + } /* Write the updated enable mask */ @@ -116,23 +158,11 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) { - struct acpi_gpe_register_info *gpe_register_info; acpi_status status; ACPI_FUNCTION_ENTRY(); - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return (AE_NOT_EXIST); - } - - /* Write the entire GPE (runtime) enable register */ - - status = acpi_hw_write(gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); - + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_COND_ENABLE); return (status); } @@ -150,21 +180,28 @@ acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) { + struct acpi_gpe_register_info *gpe_register_info; acpi_status status; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_ENTRY(); - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return (AE_NOT_EXIST); + } + + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* * Write a one to the appropriate bit in the status register to * clear this GPE. */ status = acpi_hw_write(register_bit, - &gpe_event_info->register_info->status_address); + &gpe_register_info->status_address); return (status); } @@ -187,7 +224,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, acpi_event_status * event_status) { u32 in_byte; - u8 register_bit; + u32 register_bit; struct acpi_gpe_register_info *gpe_register_info; acpi_status status; acpi_event_status local_event_status = 0; @@ -204,9 +241,8 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* Get the register bitmask for this GPE */ - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* GPE currently enabled? (enabled for runtime?) */ @@ -224,7 +260,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, status = acpi_hw_read(&in_byte, &gpe_register_info->status_address); if (ACPI_FAILURE(status)) { - goto unlock_and_exit; + return (status); } if (register_bit & in_byte) { @@ -234,9 +270,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* Set return value */ (*event_status) = local_event_status; - - unlock_and_exit: - return (status); + return (AE_OK); } /****************************************************************************** diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 15c9ed2be853..5d1273b660ae 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -7,7 +7,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -299,7 +299,7 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) ACPI_FUNCTION_ENTRY(); if (register_id > ACPI_BITREG_MAX) { - ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X", + ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: 0x%X", register_id)); return (NULL); } @@ -413,7 +413,7 @@ acpi_hw_register_read(u32 register_id, u32 * return_value) break; default: - ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id)); + ACPI_ERROR((AE_INFO, "Unknown Register ID: 0x%X", register_id)); status = AE_BAD_PARAMETER; break; } @@ -549,7 +549,7 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) break; default: - ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id)); + ACPI_ERROR((AE_INFO, "Unknown Register ID: 0x%X", register_id)); status = AE_BAD_PARAMETER; break; } diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index cc22f9a585b0..36eb803dd9d0 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -245,7 +245,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) || (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) { - ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X", + ACPI_ERROR((AE_INFO, "Sleep values out of range: A=0x%X B=0x%X", acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b)); return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index 6b282e85d039..1ef8e0bb250b 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -140,7 +140,7 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) { acpi_status status; u32 delta_ticks; - acpi_integer quotient; + u64 quotient; ACPI_FUNCTION_TRACE(acpi_get_timer_duration); diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index ec33f270c5b7..e1d9c777b213 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2009, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -150,7 +150,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width) if (last_address > ACPI_UINT16_MAX) { ACPI_ERROR((AE_INFO, - "Illegal I/O port address/length above 64K: 0x%p/%X", + "Illegal I/O port address/length above 64K: %p/0x%X", ACPI_CAST_PTR(void, address), byte_width)); return_ACPI_STATUS(AE_LIMIT); } @@ -222,6 +222,12 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) u32 one_byte; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); @@ -279,6 +285,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) acpi_status status; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 647c7b6e6756..50cc3be77724 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index d622ba770000..3a2814676ac3 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -222,7 +222,7 @@ acpi_status acpi_ns_root_initialize(void) default: ACPI_ERROR((AE_INFO, - "Unsupported initial type value %X", + "Unsupported initial type value 0x%X", init_val->type)); acpi_ut_remove_reference(obj_desc); obj_desc = NULL; diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index 8a58a1b85aa0..982269c1fa48 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index e37836e27e29..2110cc2360f0 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -205,8 +205,8 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, /* Check the node type and name */ if (type > ACPI_TYPE_LOCAL_MAX) { - ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X", - type)); + ACPI_WARNING((AE_INFO, + "Invalid ACPI Object Type 0x%08X", type)); } if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 36be7f0e97ec..d2a97921e249 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index af9fe9103734..f52829cc294b 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 4f8abac231d2..4e5272c313e0 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -193,6 +193,15 @@ acpi_status acpi_ns_initialize_devices(void) acpi_ns_init_one_device, NULL, &info, NULL); + /* + * Any _OSI requests should be completed by now. If the BIOS has + * requested any Windows OSI strings, we will always truncate + * I/O addresses to 16 bits -- for Windows compatibility. + */ + if (acpi_gbl_osi_data >= ACPI_OSI_WIN_2000) { + acpi_gbl_truncate_io_addresses = TRUE; + } + ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { goto error_exit; diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index a7234e60e985..df18be94fefe 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index 8f9a4875ce26..7dea0031605c 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -107,7 +107,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node, if (index != 0) { ACPI_ERROR((AE_INFO, - "Could not construct external pathname; index=%X, size=%X, Path=%s", + "Could not construct external pathname; index=%u, size=%u, Path=%s", (u32) index, (u32) size, &name_buffer[size])); return (AE_BAD_PARAMETER); diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c index 60f3af08d28c..41a9213dd5af 100644 --- a/drivers/acpi/acpica/nsobject.c +++ b/drivers/acpi/acpica/nsobject.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index 662a4bd5b621..27cda52c76bc 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index d34fa59548f7..7096bcda0c72 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -231,6 +231,7 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, * Note: Package may have been newly created by call above. */ if ((*return_object_ptr)->common.type == ACPI_TYPE_PACKAGE) { + data->parent_package = *return_object_ptr; status = acpi_ns_check_package(data, return_object_ptr); if (ACPI_FAILURE(status)) { goto exit; @@ -710,6 +711,7 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, for (i = 0; i < count; i++) { sub_package = *elements; sub_elements = sub_package->package.elements; + data->parent_package = sub_package; /* Each sub-object must be of type Package */ @@ -721,6 +723,7 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, /* Examine the different types of expected sub-packages */ + data->parent_package = sub_package; switch (package->ret_info.type) { case ACPI_PTYPE2: case ACPI_PTYPE2_PKG_COUNT: @@ -800,7 +803,7 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, /* * First element is the (Integer) count of elements, including - * the count field. + * the count field (the ACPI name is num_elements) */ status = acpi_ns_check_object_type(data, sub_elements, ACPI_RTYPE_INTEGER, @@ -822,6 +825,16 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, expected_count = package->ret_info.count1; goto package_too_small; } + if (expected_count == 0) { + /* + * Either the num_entries element was originally zero or it was + * a NULL element and repaired to an Integer of value zero. + * In either case, repair it by setting num_entries to be the + * actual size of the subpackage. + */ + expected_count = sub_package->package.count; + (*sub_elements)->integer.value = expected_count; + } /* Check the type of each sub-package element */ @@ -945,10 +958,18 @@ acpi_ns_check_object_type(struct acpi_predefined_data *data, char type_buffer[48]; /* Room for 5 types */ /* - * If we get a NULL return_object here, it is a NULL package element, - * and this is always an error. + * If we get a NULL return_object here, it is a NULL package element. + * Since all extraneous NULL package elements were removed earlier by a + * call to acpi_ns_remove_null_elements, this is an unexpected NULL element. + * We will attempt to repair it. */ if (!return_object) { + status = acpi_ns_repair_null_element(data, expected_btypes, + package_index, + return_object_ptr); + if (ACPI_SUCCESS(status)) { + return (AE_OK); /* Repair was successful */ + } goto type_error_exit; } @@ -1000,27 +1021,25 @@ acpi_ns_check_object_type(struct acpi_predefined_data *data, /* Is the object one of the expected types? */ - if (!(return_btype & expected_btypes)) { + if (return_btype & expected_btypes) { - /* Type mismatch -- attempt repair of the returned object */ + /* For reference objects, check that the reference type is correct */ - status = acpi_ns_repair_object(data, expected_btypes, - package_index, - return_object_ptr); - if (ACPI_SUCCESS(status)) { - return (AE_OK); /* Repair was successful */ + if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) { + status = acpi_ns_check_reference(data, return_object); } - goto type_error_exit; + + return (status); } - /* For reference objects, check that the reference type is correct */ + /* Type mismatch -- attempt repair of the returned object */ - if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) { - status = acpi_ns_check_reference(data, return_object); + status = acpi_ns_repair_object(data, expected_btypes, + package_index, return_object_ptr); + if (ACPI_SUCCESS(status)) { + return (AE_OK); /* Repair was successful */ } - return (status); - type_error_exit: /* Create a string with all expected types for this predefined object */ diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index 4fd1bdb056b2..d4be37751be4 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2009, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -45,6 +45,7 @@ #include "accommon.h" #include "acnamesp.h" #include "acinterp.h" +#include "acpredef.h" #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsrepair") @@ -71,6 +72,12 @@ ACPI_MODULE_NAME("nsrepair") * Buffer -> Package of Integers * Package -> Package of one Package * + * Additional possible repairs: + * + * Optional/unnecessary NULL package elements removed + * Required package elements that are NULL replaced by Integer/String/Buffer + * Incorrect standalone package wrapped with required outer package + * ******************************************************************************/ /* Local prototypes */ static acpi_status @@ -506,6 +513,172 @@ acpi_ns_convert_to_package(union acpi_operand_object *original_object, /******************************************************************************* * + * FUNCTION: acpi_ns_repair_null_element + * + * PARAMETERS: Data - Pointer to validation data structure + * expected_btypes - Object types expected + * package_index - Index of object within parent package (if + * applicable - ACPI_NOT_PACKAGE_ELEMENT + * otherwise) + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if repair was successful. + * + * DESCRIPTION: Attempt to repair a NULL element of a returned Package object. + * + ******************************************************************************/ + +acpi_status +acpi_ns_repair_null_element(struct acpi_predefined_data *data, + u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object *new_object; + + ACPI_FUNCTION_NAME(ns_repair_null_element); + + /* No repair needed if return object is non-NULL */ + + if (return_object) { + return (AE_OK); + } + + /* + * Attempt to repair a NULL element of a Package object. This applies to + * predefined names that return a fixed-length package and each element + * is required. It does not apply to variable-length packages where NULL + * elements are allowed, especially at the end of the package. + */ + if (expected_btypes & ACPI_RTYPE_INTEGER) { + + /* Need an Integer - create a zero-value integer */ + + new_object = acpi_ut_create_integer_object(0); + } else if (expected_btypes & ACPI_RTYPE_STRING) { + + /* Need a String - create a NULL string */ + + new_object = acpi_ut_create_string_object(0); + } else if (expected_btypes & ACPI_RTYPE_BUFFER) { + + /* Need a Buffer - create a zero-length buffer */ + + new_object = acpi_ut_create_buffer_object(0); + } else { + /* Error for all other expected types */ + + return (AE_AML_OPERAND_TYPE); + } + + if (!new_object) { + return (AE_NO_MEMORY); + } + + /* Set the reference count according to the parent Package object */ + + new_object->common.reference_count = + data->parent_package->common.reference_count; + + ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, + "%s: Converted NULL package element to expected %s at index %u\n", + data->pathname, + acpi_ut_get_object_type_name(new_object), + package_index)); + + *return_object_ptr = new_object; + data->flags |= ACPI_OBJECT_REPAIRED; + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_remove_null_elements + * + * PARAMETERS: Data - Pointer to validation data structure + * package_type - An acpi_return_package_types value + * obj_desc - A Package object + * + * RETURN: None. + * + * DESCRIPTION: Remove all NULL package elements from packages that contain + * a variable number of sub-packages. For these types of + * packages, NULL elements can be safely removed. + * + *****************************************************************************/ + +void +acpi_ns_remove_null_elements(struct acpi_predefined_data *data, + u8 package_type, + union acpi_operand_object *obj_desc) +{ + union acpi_operand_object **source; + union acpi_operand_object **dest; + u32 count; + u32 new_count; + u32 i; + + ACPI_FUNCTION_NAME(ns_remove_null_elements); + + /* + * PTYPE1 packages contain no subpackages. + * PTYPE2 packages contain a variable number of sub-packages. We can + * safely remove all NULL elements from the PTYPE2 packages. + */ + switch (package_type) { + case ACPI_PTYPE1_FIXED: + case ACPI_PTYPE1_VAR: + case ACPI_PTYPE1_OPTION: + return; + + case ACPI_PTYPE2: + case ACPI_PTYPE2_COUNT: + case ACPI_PTYPE2_PKG_COUNT: + case ACPI_PTYPE2_FIXED: + case ACPI_PTYPE2_MIN: + case ACPI_PTYPE2_REV_FIXED: + break; + + default: + return; + } + + count = obj_desc->package.count; + new_count = count; + + source = obj_desc->package.elements; + dest = source; + + /* Examine all elements of the package object, remove nulls */ + + for (i = 0; i < count; i++) { + if (!*source) { + new_count--; + } else { + *dest = *source; + dest++; + } + source++; + } + + /* Update parent package if any null elements were removed */ + + if (new_count < count) { + ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, + "%s: Found and removed %u NULL elements\n", + data->pathname, (count - new_count))); + + /* NULL terminate list and update the package count */ + + *dest = NULL; + obj_desc->package.count = new_count; + } +} + +/******************************************************************************* + * * FUNCTION: acpi_ns_repair_package_list * * PARAMETERS: Data - Pointer to validation data structure diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index f13691c1cca5..61bd0f6755d2 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2009, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -45,7 +45,6 @@ #include <acpi/acpi.h> #include "accommon.h" #include "acnamesp.h" -#include "acpredef.h" #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsrepair2") @@ -93,7 +92,7 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, u32 sort_index, u8 sort_direction, char *sort_key_name); -static acpi_status +static void acpi_ns_sort_list(union acpi_operand_object **elements, u32 count, u32 index, u8 sort_direction); @@ -443,7 +442,6 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, union acpi_operand_object *obj_desc; u32 i; u32 previous_value; - acpi_status status; ACPI_FUNCTION_NAME(ns_check_sorted_list); @@ -494,19 +492,15 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, /* * The list must be sorted in the specified order. If we detect a - * discrepancy, issue a warning and sort the entire list + * discrepancy, sort the entire list. */ if (((sort_direction == ACPI_SORT_ASCENDING) && (obj_desc->integer.value < previous_value)) || ((sort_direction == ACPI_SORT_DESCENDING) && (obj_desc->integer.value > previous_value))) { - status = - acpi_ns_sort_list(return_object->package.elements, - outer_element_count, sort_index, - sort_direction); - if (ACPI_FAILURE(status)) { - return (status); - } + acpi_ns_sort_list(return_object->package.elements, + outer_element_count, sort_index, + sort_direction); data->flags |= ACPI_OBJECT_REPAIRED; @@ -525,89 +519,6 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, /****************************************************************************** * - * FUNCTION: acpi_ns_remove_null_elements - * - * PARAMETERS: Data - Pointer to validation data structure - * package_type - An acpi_return_package_types value - * obj_desc - A Package object - * - * RETURN: None. - * - * DESCRIPTION: Remove all NULL package elements from packages that contain - * a variable number of sub-packages. - * - *****************************************************************************/ - -void -acpi_ns_remove_null_elements(struct acpi_predefined_data *data, - u8 package_type, - union acpi_operand_object *obj_desc) -{ - union acpi_operand_object **source; - union acpi_operand_object **dest; - u32 count; - u32 new_count; - u32 i; - - ACPI_FUNCTION_NAME(ns_remove_null_elements); - - /* - * PTYPE1 packages contain no subpackages. - * PTYPE2 packages contain a variable number of sub-packages. We can - * safely remove all NULL elements from the PTYPE2 packages. - */ - switch (package_type) { - case ACPI_PTYPE1_FIXED: - case ACPI_PTYPE1_VAR: - case ACPI_PTYPE1_OPTION: - return; - - case ACPI_PTYPE2: - case ACPI_PTYPE2_COUNT: - case ACPI_PTYPE2_PKG_COUNT: - case ACPI_PTYPE2_FIXED: - case ACPI_PTYPE2_MIN: - case ACPI_PTYPE2_REV_FIXED: - break; - - default: - return; - } - - count = obj_desc->package.count; - new_count = count; - - source = obj_desc->package.elements; - dest = source; - - /* Examine all elements of the package object, remove nulls */ - - for (i = 0; i < count; i++) { - if (!*source) { - new_count--; - } else { - *dest = *source; - dest++; - } - source++; - } - - /* Update parent package if any null elements were removed */ - - if (new_count < count) { - ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, - "%s: Found and removed %u NULL elements\n", - data->pathname, (count - new_count))); - - /* NULL terminate list and update the package count */ - - *dest = NULL; - obj_desc->package.count = new_count; - } -} - -/****************************************************************************** - * * FUNCTION: acpi_ns_sort_list * * PARAMETERS: Elements - Package object element list @@ -615,15 +526,16 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data, * Index - Sort by which package element * sort_direction - Ascending or Descending sort * - * RETURN: Status + * RETURN: None * * DESCRIPTION: Sort the objects that are in a package element list. * - * NOTE: Assumes that all NULL elements have been removed from the package. + * NOTE: Assumes that all NULL elements have been removed from the package, + * and that all elements have been verified to be of type Integer. * *****************************************************************************/ -static acpi_status +static void acpi_ns_sort_list(union acpi_operand_object **elements, u32 count, u32 index, u8 sort_direction) { @@ -652,6 +564,4 @@ acpi_ns_sort_list(union acpi_operand_object **elements, } } } - - return (AE_OK); } diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c index 7e865639a928..a8e42b5e9463 100644 --- a/drivers/acpi/acpica/nssearch.c +++ b/drivers/acpi/acpica/nssearch.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -311,7 +311,7 @@ acpi_ns_search_and_enter(u32 target_name, if (!node || !target_name || !return_node) { ACPI_ERROR((AE_INFO, - "Null parameter: Node %p Name %X ReturnNode %p", + "Null parameter: Node %p Name 0x%X ReturnNode %p", node, target_name, return_node)); return_ACPI_STATUS(AE_BAD_PARAMETER); } diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index 47d91e668a1b..bab559712da1 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -276,7 +276,7 @@ u32 acpi_ns_local(acpi_object_type type) /* Type code out of range */ - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); + ACPI_WARNING((AE_INFO, "Invalid Object Type 0x%X", type)); return_UINT32(ACPI_NS_NORMAL); } @@ -764,7 +764,7 @@ u32 acpi_ns_opens_scope(acpi_object_type type) /* type code out of range */ - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); + ACPI_WARNING((AE_INFO, "Invalid Object Type 0x%X", type)); return_UINT32(ACPI_NS_NORMAL); } diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index d7e6b52b4482..00e79fb26029 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index f0c0892bc7e5..ebef8a7fd707 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -562,25 +562,20 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, return (AE_BAD_PARAMETER); } - /* Run _STA to determine if device is present */ - - status = acpi_ut_execute_STA(node, &flags); - if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - if (!(flags & ACPI_STA_DEVICE_PRESENT) && - !(flags & ACPI_STA_DEVICE_FUNCTIONING)) { - /* - * Don't examine the children of the device only when the - * device is neither present nor functional. See ACPI spec, - * description of _STA for more information. - */ - return (AE_CTRL_DEPTH); - } - - /* Filter based on device HID & CID */ - + /* + * First, filter based on the device HID and CID. + * + * 01/2010: For this case where a specific HID is requested, we don't + * want to run _STA until we have an actual HID match. Thus, we will + * not unnecessarily execute _STA on devices for which the caller + * doesn't care about. Previously, _STA was executed unconditionally + * on all devices found here. + * + * A side-effect of this change is that now we will continue to search + * for a matching HID even under device trees where the parent device + * would have returned a _STA that indicates it is not present or + * not functioning (thus aborting the search on that branch). + */ if (info->hid != NULL) { status = acpi_ut_execute_HID(node, &hid); if (status == AE_NOT_FOUND) { @@ -620,6 +615,25 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, } } + /* Run _STA to determine if device is present */ + + status = acpi_ut_execute_STA(node, &flags); + if (ACPI_FAILURE(status)) { + return (AE_CTRL_DEPTH); + } + + if (!(flags & ACPI_STA_DEVICE_PRESENT) && + !(flags & ACPI_STA_DEVICE_FUNCTIONING)) { + /* + * Don't examine the children of the device only when the + * device is neither present nor functional. See ACPI spec, + * description of _STA for more information. + */ + return (AE_CTRL_DEPTH); + } + + /* We have a valid device, invoke the user function */ + status = info->user_function(obj_handle, nesting_level, info->context, return_value); return (status); diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index e611dd961b20..b01e45a415e3 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index 0cc6ba01a495..eafef24ea448 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c index b161f3544b51..7df1a4c95274 100644 --- a/drivers/acpi/acpica/psargs.c +++ b/drivers/acpi/acpica/psargs.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -403,7 +403,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, /* Get 1 byte from the AML stream */ opcode = AML_BYTE_OP; - arg->common.value.integer = (acpi_integer) * aml; + arg->common.value.integer = (u64) *aml; length = 1; break; @@ -460,7 +460,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, default: - ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type)); + ACPI_ERROR((AE_INFO, "Invalid ArgType 0x%X", arg_type)); return_VOID; } @@ -742,7 +742,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, default: - ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type)); + ACPI_ERROR((AE_INFO, "Invalid ArgType: 0x%X", arg_type)); status = AE_AML_OPERAND_TYPE; break; } diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index 0988e4a8901d..2f2e7760938c 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -136,7 +136,7 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) /* The opcode is unrecognized. Just skip unknown opcodes */ ACPI_ERROR((AE_INFO, - "Found unknown opcode %X at AML address %p offset %X, ignoring", + "Found unknown opcode 0x%X at AML address %p offset 0x%X, ignoring", walk_state->opcode, walk_state->parser_state.aml, walk_state->aml_offset)); @@ -1021,7 +1021,6 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) if (status == AE_AML_NO_RETURN_VALUE) { ACPI_EXCEPTION((AE_INFO, status, "Invoked method did not return a value")); - } ACPI_EXCEPTION((AE_INFO, status, diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c index 3bc3a60194d6..2b0c3be2b1b8 100644 --- a/drivers/acpi/acpica/psopcode.c +++ b/drivers/acpi/acpica/psopcode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c index 4df8f139026c..8d81542194d4 100644 --- a/drivers/acpi/acpica/psparse.c +++ b/drivers/acpi/acpica/psparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c index 2feca5ca9581..40e2b279ea12 100644 --- a/drivers/acpi/acpica/psscope.c +++ b/drivers/acpi/acpica/psscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c index 4d3389118ec3..d4b970c3630b 100644 --- a/drivers/acpi/acpica/pstree.c +++ b/drivers/acpi/acpica/pstree.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c index e636e078ad3d..fe29eee5adb1 100644 --- a/drivers/acpi/acpica/psutils.c +++ b/drivers/acpi/acpica/psutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c index 78b8b791f2ae..8abb9629443d 100644 --- a/drivers/acpi/acpica/pswalk.c +++ b/drivers/acpi/acpica/pswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index d0c1b91eb8ca..c42f067cff9d 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -46,6 +46,7 @@ #include "acparser.h" #include "acdispat.h" #include "acinterp.h" +#include "actables.h" #include "amlcode.h" #define _COMPONENT ACPI_PARSER @@ -220,6 +221,10 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) ACPI_FUNCTION_TRACE(ps_execute_method); + /* Quick validation of DSDT header */ + + acpi_tb_check_dsdt_header(); + /* Validate the Info and method Node */ if (!info || !info->resolved_node) { diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c index 1e437bfd8db5..226c806ae986 100644 --- a/drivers/acpi/acpica/rsaddr.c +++ b/drivers/acpi/acpica/rsaddr.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index 3c4dcc3d1069..d6ebf7ec622d 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index a3c23d686d5f..c80a2eea3a01 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -182,7 +182,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a - * package that in turn contains an acpi_integer Address, a u8 Pin, + * package that in turn contains an u64 Address, a u8 Pin, * a Name, and a u8 source_index. */ top_object_list = package_object->package.elements; @@ -212,7 +212,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if ((*top_object_list)->common.type != ACPI_TYPE_PACKAGE) { ACPI_ERROR((AE_INFO, - "(PRT[%X]) Need sub-package, found %s", + "(PRT[%u]) Need sub-package, found %s", index, acpi_ut_get_object_type_name (*top_object_list))); @@ -223,7 +223,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if ((*top_object_list)->package.count != 4) { ACPI_ERROR((AE_INFO, - "(PRT[%X]) Need package of length 4, found length %d", + "(PRT[%u]) Need package of length 4, found length %u", index, (*top_object_list)->package.count)); return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); } @@ -240,7 +240,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, obj_desc = sub_object_list[0]; if (obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, - "(PRT[%X].Address) Need Integer, found %s", + "(PRT[%u].Address) Need Integer, found %s", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); @@ -253,7 +253,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, obj_desc = sub_object_list[1]; if (obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, - "(PRT[%X].Pin) Need Integer, found %s", + "(PRT[%u].Pin) Need Integer, found %s", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); @@ -289,7 +289,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (obj_desc->reference.class != ACPI_REFCLASS_NAME) { ACPI_ERROR((AE_INFO, - "(PRT[%X].Source) Need name, found Reference Class %X", + "(PRT[%u].Source) Need name, found Reference Class 0x%X", index, obj_desc->reference.class)); return_ACPI_STATUS(AE_BAD_DATA); @@ -340,7 +340,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, default: ACPI_ERROR((AE_INFO, - "(PRT[%X].Source) Need Ref/String/Integer, found %s", + "(PRT[%u].Source) Need Ref/String/Integer, found %s", index, acpi_ut_get_object_type_name (obj_desc))); @@ -358,7 +358,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, obj_desc = sub_object_list[3]; if (obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, - "(PRT[%X].SourceIndex) Need Integer, found %s", + "(PRT[%u].SourceIndex) Need Integer, found %s", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c index 3f0ca5a12d34..f859b0386fe4 100644 --- a/drivers/acpi/acpica/rsdump.c +++ b/drivers/acpi/acpica/rsdump.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c index 77b25fdb459c..1fd868b964fd 100644 --- a/drivers/acpi/acpica/rsinfo.c +++ b/drivers/acpi/acpica/rsinfo.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsio.c b/drivers/acpi/acpica/rsio.c index 35a49aa95609..33bff17c0bbc 100644 --- a/drivers/acpi/acpica/rsio.c +++ b/drivers/acpi/acpica/rsio.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c index 2e0256983aa6..545da40d7fa7 100644 --- a/drivers/acpi/acpica/rsirq.c +++ b/drivers/acpi/acpica/rsirq.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c index 1b1dbc69f087..7335f22aac20 100644 --- a/drivers/acpi/acpica/rslist.c +++ b/drivers/acpi/acpica/rslist.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -94,7 +94,7 @@ acpi_rs_convert_aml_to_resources(u8 * aml, [resource_index]); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Could not convert AML resource (Type %X)", + "Could not convert AML resource (Type 0x%X)", *aml)); return_ACPI_STATUS(status); } @@ -147,7 +147,7 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, if (resource->type > ACPI_RESOURCE_TYPE_MAX) { ACPI_ERROR((AE_INFO, - "Invalid descriptor type (%X) in resource list", + "Invalid descriptor type (0x%X) in resource list", resource->type)); return_ACPI_STATUS(AE_BAD_DATA); } @@ -161,7 +161,7 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, [resource->type]); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Could not convert resource (type %X) to AML", + "Could not convert resource (type 0x%X) to AML", resource->type)); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c index ddc76cebdc92..887b8ba8c432 100644 --- a/drivers/acpi/acpica/rsmemory.c +++ b/drivers/acpi/acpica/rsmemory.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c index 5bc49a553284..f8cd9e87d987 100644 --- a/drivers/acpi/acpica/rsmisc.c +++ b/drivers/acpi/acpica/rsmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -88,7 +88,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, /* Each internal resource struct is expected to be 32-bit aligned */ ACPI_WARNING((AE_INFO, - "Misaligned resource pointer (get): %p Type %2.2X Len %X", + "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u", resource, resource->type, resource->length)); } @@ -541,7 +541,7 @@ if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { * "IRQ Format"), so 0x00 and 0x09 are illegal. */ ACPI_ERROR((AE_INFO, - "Invalid interrupt polarity/trigger in resource list, %X", + "Invalid interrupt polarity/trigger in resource list, 0x%X", aml->irq.flags)); return_ACPI_STATUS(AE_BAD_DATA); } diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index bc03d5966829..22cfcfbd9fff 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index f27feb4772f6..9f6a6e7e1c8e 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index c016335fb759..1728cb9bf600 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -283,7 +283,7 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) if (length > sizeof(struct acpi_table_fadt)) { ACPI_WARNING((AE_INFO, "FADT (revision %u) is longer than ACPI 2.0 version, " - "truncating length 0x%X to 0x%X", + "truncating length %u to %u", table->revision, length, (u32)sizeof(struct acpi_table_fadt))); } @@ -422,7 +422,7 @@ static void acpi_tb_convert_fadt(void) if (address64->address && address32 && (address64->address != (u64) address32)) { ACPI_ERROR((AE_INFO, - "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 32", + "32/64X address mismatch in %s: 0x%8.8X/0x%8.8X%8.8X, using 32", fadt_info_table[i].name, address32, ACPI_FORMAT_UINT64(address64->address))); } @@ -481,7 +481,7 @@ static void acpi_tb_validate_fadt(void) (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { ACPI_WARNING((AE_INFO, "32/64X FACS address mismatch in FADT - " - "%8.8X/%8.8X%8.8X, using 32", + "0x%8.8X/0x%8.8X%8.8X, using 32", acpi_gbl_FADT.facs, ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); @@ -492,7 +492,7 @@ static void acpi_tb_validate_fadt(void) (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { ACPI_WARNING((AE_INFO, "32/64X DSDT address mismatch in FADT - " - "%8.8X/%8.8X%8.8X, using 32", + "0x%8.8X/0x%8.8X%8.8X, using 32", acpi_gbl_FADT.dsdt, ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); @@ -521,7 +521,7 @@ static void acpi_tb_validate_fadt(void) if (address64->address && (address64->bit_width != ACPI_MUL_8(length))) { ACPI_WARNING((AE_INFO, - "32/64X length mismatch in %s: %d/%d", + "32/64X length mismatch in %s: %u/%u", name, ACPI_MUL_8(length), address64->bit_width)); } @@ -534,7 +534,7 @@ static void acpi_tb_validate_fadt(void) if (!address64->address || !length) { ACPI_ERROR((AE_INFO, "Required field %s has zero address and/or length:" - " %8.8X%8.8X/%X", + " 0x%8.8X%8.8X/0x%X", name, ACPI_FORMAT_UINT64(address64-> address), @@ -550,7 +550,7 @@ static void acpi_tb_validate_fadt(void) (!address64->address && length)) { ACPI_WARNING((AE_INFO, "Optional field %s has zero address or length: " - "%8.8X%8.8X/%X", + "0x%8.8X%8.8X/0x%X", name, ACPI_FORMAT_UINT64(address64-> address), @@ -600,7 +600,7 @@ static void acpi_tb_setup_fadt_registers(void) (fadt_info_table[i].default_length != target64->bit_width)) { ACPI_WARNING((AE_INFO, - "Invalid length for %s: %d, using default %d", + "Invalid length for %s: %u, using default %u", fadt_info_table[i].name, target64->bit_width, fadt_info_table[i]. diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c index 1054dfd49207..989d5c867864 100644 --- a/drivers/acpi/acpica/tbfind.c +++ b/drivers/acpi/acpica/tbfind.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -83,7 +83,7 @@ acpi_tb_find_table(char *signature, /* Search for the table */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature), header.signature, ACPI_NAME_SIZE)) { diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 63e82329a9e8..83d7af8d0905 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -137,7 +137,7 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) /* Check if table is already registered */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { if (!acpi_gbl_root_table_list.tables[i].pointer) { status = acpi_tb_verify_table(&acpi_gbl_root_table_list. @@ -273,7 +273,7 @@ acpi_status acpi_tb_resize_root_table_list(void) /* Increase the Table Array size */ tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list. - size + + max_table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT) * sizeof(struct acpi_table_desc)); if (!tables) { @@ -286,8 +286,8 @@ acpi_status acpi_tb_resize_root_table_list(void) if (acpi_gbl_root_table_list.tables) { ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, - (acpi_size) acpi_gbl_root_table_list.size * - sizeof(struct acpi_table_desc)); + (acpi_size) acpi_gbl_root_table_list. + max_table_count * sizeof(struct acpi_table_desc)); if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { ACPI_FREE(acpi_gbl_root_table_list.tables); @@ -295,8 +295,9 @@ acpi_status acpi_tb_resize_root_table_list(void) } acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT; - acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED; + acpi_gbl_root_table_list.max_table_count += + ACPI_ROOT_TABLE_SIZE_INCREMENT; + acpi_gbl_root_table_list.flags |= (u8)ACPI_ROOT_ORIGIN_ALLOCATED; return_ACPI_STATUS(AE_OK); } @@ -321,38 +322,36 @@ acpi_tb_store_table(acpi_physical_address address, struct acpi_table_header *table, u32 length, u8 flags, u32 *table_index) { - acpi_status status = AE_OK; + acpi_status status; + struct acpi_table_desc *new_table; /* Ensure that there is room for the table in the Root Table List */ - if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) { + if (acpi_gbl_root_table_list.current_table_count >= + acpi_gbl_root_table_list.max_table_count) { status = acpi_tb_resize_root_table_list(); if (ACPI_FAILURE(status)) { return (status); } } + new_table = + &acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list. + current_table_count]; + /* Initialize added table */ - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - address = address; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - pointer = table; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length = - length; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - owner_id = 0; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags = - flags; - - ACPI_MOVE_32_TO_32(& - (acpi_gbl_root_table_list. - tables[acpi_gbl_root_table_list.count].signature), - table->signature); - - *table_index = acpi_gbl_root_table_list.count; - acpi_gbl_root_table_list.count++; - return (status); + new_table->address = address; + new_table->pointer = table; + new_table->length = length; + new_table->owner_id = 0; + new_table->flags = flags; + + ACPI_MOVE_32_TO_32(&new_table->signature, table->signature); + + *table_index = acpi_gbl_root_table_list.current_table_count; + acpi_gbl_root_table_list.current_table_count++; + return (AE_OK); } /******************************************************************************* @@ -408,7 +407,7 @@ void acpi_tb_terminate(void) /* Delete the individual tables */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); } @@ -422,7 +421,7 @@ void acpi_tb_terminate(void) acpi_gbl_root_table_list.tables = NULL; acpi_gbl_root_table_list.flags = 0; - acpi_gbl_root_table_list.count = 0; + acpi_gbl_root_table_list.current_table_count = 0; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); @@ -452,7 +451,7 @@ acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index) return_ACPI_STATUS(status); } - if (table_index >= acpi_gbl_root_table_list.count) { + if (table_index >= acpi_gbl_root_table_list.current_table_count) { /* The table index does not exist */ @@ -505,7 +504,7 @@ acpi_status acpi_tb_allocate_owner_id(u32 table_index) ACPI_FUNCTION_TRACE(tb_allocate_owner_id); (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { + if (table_index < acpi_gbl_root_table_list.current_table_count) { status = acpi_ut_allocate_owner_id (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); } @@ -533,7 +532,7 @@ acpi_status acpi_tb_release_owner_id(u32 table_index) ACPI_FUNCTION_TRACE(tb_release_owner_id); (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { + if (table_index < acpi_gbl_root_table_list.current_table_count) { acpi_ut_release_owner_id(& (acpi_gbl_root_table_list. tables[table_index].owner_id)); @@ -564,7 +563,7 @@ acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) ACPI_FUNCTION_TRACE(tb_get_owner_id); (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { + if (table_index < acpi_gbl_root_table_list.current_table_count) { *owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id; status = AE_OK; @@ -589,7 +588,7 @@ u8 acpi_tb_is_table_loaded(u32 table_index) u8 is_loaded = FALSE; (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { + if (table_index < acpi_gbl_root_table_list.current_table_count) { is_loaded = (u8) (acpi_gbl_root_table_list.tables[table_index].flags & ACPI_TABLE_IS_LOADED); @@ -616,7 +615,7 @@ void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) { (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { + if (table_index < acpi_gbl_root_table_list.current_table_count) { if (is_loaded) { acpi_gbl_root_table_list.tables[table_index].flags |= ACPI_TABLE_IS_LOADED; diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 1f15497f00d1..34f9c2bc5e1f 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -158,7 +158,7 @@ acpi_status acpi_tb_initialize_facs(void) u8 acpi_tb_tables_loaded(void) { - if (acpi_gbl_root_table_list.count >= 3) { + if (acpi_gbl_root_table_list.current_table_count >= 3) { return (TRUE); } @@ -309,7 +309,7 @@ acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length) if (checksum) { ACPI_WARNING((AE_INFO, - "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X", + "Incorrect checksum in table [%4.4s] - 0x%2.2X, should be 0x%2.2X", table->signature, table->checksum, (u8) (table->checksum - checksum))); @@ -349,6 +349,84 @@ u8 acpi_tb_checksum(u8 *buffer, u32 length) /******************************************************************************* * + * FUNCTION: acpi_tb_check_dsdt_header + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Quick compare to check validity of the DSDT. This will detect + * if the DSDT has been replaced from outside the OS and/or if + * the DSDT header has been corrupted. + * + ******************************************************************************/ + +void acpi_tb_check_dsdt_header(void) +{ + + /* Compare original length and checksum to current values */ + + if (acpi_gbl_original_dsdt_header.length != acpi_gbl_DSDT->length || + acpi_gbl_original_dsdt_header.checksum != acpi_gbl_DSDT->checksum) { + ACPI_ERROR((AE_INFO, + "The DSDT has been corrupted or replaced - old, new headers below")); + acpi_tb_print_table_header(0, &acpi_gbl_original_dsdt_header); + acpi_tb_print_table_header(0, acpi_gbl_DSDT); + + ACPI_ERROR((AE_INFO, + "Please send DMI info to linux-acpi@vger.kernel.org\n" + "If system does not work as expected, please boot with acpi=copy_dsdt")); + + /* Disable further error messages */ + + acpi_gbl_original_dsdt_header.length = acpi_gbl_DSDT->length; + acpi_gbl_original_dsdt_header.checksum = + acpi_gbl_DSDT->checksum; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_copy_dsdt + * + * PARAMETERS: table_desc - Installed table to copy + * + * RETURN: None + * + * DESCRIPTION: Implements a subsystem option to copy the DSDT to local memory. + * Some very bad BIOSs are known to either corrupt the DSDT or + * install a new, bad DSDT. This copy works around the problem. + * + ******************************************************************************/ + +struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index) +{ + struct acpi_table_header *new_table; + struct acpi_table_desc *table_desc; + + table_desc = &acpi_gbl_root_table_list.tables[table_index]; + + new_table = ACPI_ALLOCATE(table_desc->length); + if (!new_table) { + ACPI_ERROR((AE_INFO, "Could not copy DSDT of length 0x%X", + table_desc->length)); + return (NULL); + } + + ACPI_MEMCPY(new_table, table_desc->pointer, table_desc->length); + acpi_tb_delete_table(table_desc); + table_desc->pointer = new_table; + table_desc->flags = ACPI_TABLE_ORIGIN_ALLOCATED; + + ACPI_INFO((AE_INFO, + "Forced DSDT copy: length 0x%05X copied locally, original unmapped", + new_table->length)); + + return (new_table); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_install_table * * PARAMETERS: Address - Physical address of DSDT or FACS @@ -496,7 +574,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) /* Will truncate 64-bit address to 32 bits, issue warning */ ACPI_WARNING((AE_INFO, - "64-bit Physical Address in XSDT is too large (%8.8X%8.8X)," + "64-bit Physical Address in XSDT is too large (0x%8.8X%8.8X)," " truncating", ACPI_FORMAT_UINT64(address64))); } @@ -629,14 +707,14 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address) */ table_entry = ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - acpi_gbl_root_table_list.count = 2; + acpi_gbl_root_table_list.current_table_count = 2; /* * Initialize the root table array from the RSDT/XSDT */ for (i = 0; i < table_count; i++) { - if (acpi_gbl_root_table_list.count >= - acpi_gbl_root_table_list.size) { + if (acpi_gbl_root_table_list.current_table_count >= + acpi_gbl_root_table_list.max_table_count) { /* There is no more room in the root table array, attempt resize */ @@ -646,19 +724,20 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address) "Truncating %u table entries!", (unsigned) (table_count - (acpi_gbl_root_table_list. - count - 2)))); + current_table_count - + 2)))); break; } } /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */ - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - address = + acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list. + current_table_count].address = acpi_tb_get_root_table_entry(table_entry, table_entry_size); table_entry += table_entry_size; - acpi_gbl_root_table_list.count++; + acpi_gbl_root_table_list.current_table_count++; } /* @@ -671,7 +750,7 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address) * Complete the initialization of the root table array by examining * the header of each table */ - for (i = 2; i < acpi_gbl_root_table_list.count; i++) { + for (i = 2; i < acpi_gbl_root_table_list.current_table_count; i++) { acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. address, NULL, i); diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index a88f02bd6c94..4a8b9e6ea57a 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -72,7 +72,7 @@ static int no_auto_ssdt; acpi_status acpi_allocate_root_table(u32 initial_table_count) { - acpi_gbl_root_table_list.size = initial_table_count; + acpi_gbl_root_table_list.max_table_count = initial_table_count; acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE; return (acpi_tb_resize_root_table_list()); @@ -130,7 +130,7 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array, sizeof(struct acpi_table_desc)); acpi_gbl_root_table_list.tables = initial_table_array; - acpi_gbl_root_table_list.size = initial_table_count; + acpi_gbl_root_table_list.max_table_count = initial_table_count; acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN; if (allow_resize) { acpi_gbl_root_table_list.flags |= @@ -172,6 +172,7 @@ acpi_status acpi_reallocate_root_table(void) { struct acpi_table_desc *tables; acpi_size new_size; + acpi_size current_size; ACPI_FUNCTION_TRACE(acpi_reallocate_root_table); @@ -183,10 +184,17 @@ acpi_status acpi_reallocate_root_table(void) return_ACPI_STATUS(AE_SUPPORT); } - new_size = ((acpi_size) acpi_gbl_root_table_list.count + - ACPI_ROOT_TABLE_SIZE_INCREMENT) * + /* + * Get the current size of the root table and add the default + * increment to create the new table size. + */ + current_size = (acpi_size) + acpi_gbl_root_table_list.current_table_count * sizeof(struct acpi_table_desc); + new_size = current_size + + (ACPI_ROOT_TABLE_SIZE_INCREMENT * sizeof(struct acpi_table_desc)); + /* Create new array and copy the old array */ tables = ACPI_ALLOCATE_ZEROED(new_size); @@ -194,10 +202,17 @@ acpi_status acpi_reallocate_root_table(void) return_ACPI_STATUS(AE_NO_MEMORY); } - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size); + ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, current_size); - acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count; + /* + * Update the root table descriptor. The new size will be the current + * number of tables plus the increment, independent of the reserved + * size of the original table list. + */ acpi_gbl_root_table_list.tables = tables; + acpi_gbl_root_table_list.max_table_count = + acpi_gbl_root_table_list.current_table_count + + ACPI_ROOT_TABLE_SIZE_INCREMENT; acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE; @@ -278,7 +293,8 @@ acpi_get_table_header(char *signature, /* Walk the root table list */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { + for (i = 0, j = 0; i < acpi_gbl_root_table_list.current_table_count; + i++) { if (!ACPI_COMPARE_NAME (&(acpi_gbl_root_table_list.tables[i].signature), signature)) { @@ -341,7 +357,7 @@ acpi_status acpi_unload_table_id(acpi_owner_id id) ACPI_FUNCTION_TRACE(acpi_unload_table_id); /* Find table in the global table list */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { if (id != acpi_gbl_root_table_list.tables[i].owner_id) { continue; } @@ -391,7 +407,8 @@ acpi_get_table_with_size(char *signature, /* Walk the root table list */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { + for (i = 0, j = 0; i < acpi_gbl_root_table_list.current_table_count; + i++) { if (!ACPI_COMPARE_NAME (&(acpi_gbl_root_table_list.tables[i].signature), signature)) { @@ -459,7 +476,7 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) /* Validate index */ - if (table_index >= acpi_gbl_root_table_list.count) { + if (table_index >= acpi_gbl_root_table_list.current_table_count) { (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -500,16 +517,17 @@ static acpi_status acpi_tb_load_namespace(void) { acpi_status status; u32 i; + struct acpi_table_header *new_dsdt; ACPI_FUNCTION_TRACE(tb_load_namespace); (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); /* - * Load the namespace. The DSDT is required, but any SSDT and PSDT tables - * are optional. + * Load the namespace. The DSDT is required, but any SSDT and + * PSDT tables are optional. Verify the DSDT. */ - if (!acpi_gbl_root_table_list.count || + if (!acpi_gbl_root_table_list.current_table_count || !ACPI_COMPARE_NAME(& (acpi_gbl_root_table_list. tables[ACPI_TABLE_INDEX_DSDT].signature), @@ -522,17 +540,35 @@ static acpi_status acpi_tb_load_namespace(void) goto unlock_and_exit; } - /* A valid DSDT is required */ - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]); - if (ACPI_FAILURE(status)) { + /* + * Save the DSDT pointer for simple access. This is the mapped memory + * address. We must take care here because the address of the .Tables + * array can change dynamically as tables are loaded at run-time. Note: + * .Pointer field is not validated until after call to acpi_tb_verify_table. + */ + acpi_gbl_DSDT = + acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer; - status = AE_NO_ACPI_TABLES; - goto unlock_and_exit; + /* + * Optionally copy the entire DSDT to local memory (instead of simply + * mapping it.) There are some BIOSs that corrupt or replace the original + * DSDT, creating the need for this option. Default is FALSE, do not copy + * the DSDT. + */ + if (acpi_gbl_copy_dsdt_locally) { + new_dsdt = acpi_tb_copy_dsdt(ACPI_TABLE_INDEX_DSDT); + if (new_dsdt) { + acpi_gbl_DSDT = new_dsdt; + } } + /* + * Save the original DSDT header for detection of table corruption + * and/or replacement of the DSDT from outside the OS. + */ + ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT, + sizeof(struct acpi_table_header)); + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); /* Load and parse tables */ @@ -545,7 +581,7 @@ static acpi_status acpi_tb_load_namespace(void) /* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { if ((!ACPI_COMPARE_NAME (&(acpi_gbl_root_table_list.tables[i].signature), ACPI_SIG_SSDT) diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c index 85ea834199e2..fd2c07d1d3ac 100644 --- a/drivers/acpi/acpica/tbxfroot.c +++ b/drivers/acpi/acpica/tbxfroot.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -134,7 +134,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address) ACPI_EBDA_PTR_LENGTH); if (!table_ptr) { ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", + "Could not map memory at 0x%8.8X for length %u", ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH)); return_ACPI_STATUS(AE_NO_MEMORY); @@ -159,7 +159,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address) ACPI_EBDA_WINDOW_SIZE); if (!table_ptr) { ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", + "Could not map memory at 0x%8.8X for length %u", physical_address, ACPI_EBDA_WINDOW_SIZE)); return_ACPI_STATUS(AE_NO_MEMORY); @@ -191,7 +191,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address) if (!table_ptr) { ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", + "Could not map memory at 0x%8.8X for length %u", ACPI_HI_RSDP_WINDOW_BASE, ACPI_HI_RSDP_WINDOW_SIZE)); diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c index 7580f6b3069e..8f0896281567 100644 --- a/drivers/acpi/acpica/utalloc.c +++ b/drivers/acpi/acpica/utalloc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -340,7 +340,7 @@ void *acpi_ut_allocate(acpi_size size, /* Report allocation error */ ACPI_WARNING((module, line, - "Could not allocate size %X", (u32) size)); + "Could not allocate size %u", (u32) size)); return_PTR(NULL); } diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c index f857c5efb79f..6fef83f04bcd 100644 --- a/drivers/acpi/acpica/utcopy.c +++ b/drivers/acpi/acpica/utcopy.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -677,16 +677,24 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, u16 reference_count; union acpi_operand_object *next_object; acpi_status status; + acpi_size copy_size; /* Save fields from destination that we don't want to overwrite */ reference_count = dest_desc->common.reference_count; next_object = dest_desc->common.next_object; - /* Copy the entire source object over the destination object */ + /* + * Copy the entire source object over the destination object. + * Note: Source can be either an operand object or namespace node. + */ + copy_size = sizeof(union acpi_operand_object); + if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_NAMED) { + copy_size = sizeof(struct acpi_namespace_node); + } - ACPI_MEMCPY((char *)dest_desc, (char *)source_desc, - sizeof(union acpi_operand_object)); + ACPI_MEMCPY(ACPI_CAST_PTR(char, dest_desc), + ACPI_CAST_PTR(char, source_desc), copy_size); /* Restore the saved fields */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 527d729f6815..983510640059 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -460,8 +460,7 @@ ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) void acpi_ut_value_exit(u32 line_number, const char *function_name, - const char *module_name, - u32 component_id, acpi_integer value) + const char *module_name, u32 component_id, u64 value) { acpi_debug_print(ACPI_LV_FUNCTIONS, diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index 96e26e70c63d..ed794cd033ea 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -434,7 +434,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) default: - ACPI_ERROR((AE_INFO, "Unknown action (%X)", action)); + ACPI_ERROR((AE_INFO, "Unknown action (0x%X)", action)); break; } @@ -444,8 +444,8 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) */ if (count > ACPI_MAX_REFERENCE_COUNT) { ACPI_WARNING((AE_INFO, - "Large Reference Count (%X) in object %p", count, - object)); + "Large Reference Count (0x%X) in object %p", + count, object)); } } diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index 5d54e36ab453..6dfdeb653490 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -307,7 +307,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, prefix_node, path, AE_TYPE); ACPI_ERROR((AE_INFO, - "Type returned from %s was incorrect: %s, expected Btypes: %X", + "Type returned from %s was incorrect: %s, expected Btypes: 0x%X", path, acpi_ut_get_object_type_name(info->return_object), expected_return_btypes)); @@ -348,7 +348,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, acpi_status acpi_ut_evaluate_numeric_object(char *object_name, struct acpi_namespace_node *device_node, - acpi_integer *value) + u64 *value) { union acpi_operand_object *obj_desc; acpi_status status; diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 3f2c68f4e959..66116750a0f9 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -234,7 +234,7 @@ static const char acpi_gbl_hex_to_ascii[] = { * ******************************************************************************/ -char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position) +char acpi_ut_hex_to_ascii_char(u64 integer, u32 position) { return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]); @@ -785,6 +785,7 @@ acpi_status acpi_ut_init_globals(void) /* Miscellaneous variables */ + acpi_gbl_DSDT = NULL; acpi_gbl_cm_single_step = FALSE; acpi_gbl_db_terminate_threads = FALSE; acpi_gbl_shutdown = FALSE; diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c index 52eaae404554..1397fadd0d4b 100644 --- a/drivers/acpi/acpica/utids.c +++ b/drivers/acpi/acpica/utids.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2009, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index 9d0919ebf7b0..a39c93dac719 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c index 25e03120686d..b081cd46a15f 100644 --- a/drivers/acpi/acpica/utlock.c +++ b/drivers/acpi/acpica/utlock.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2009, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c index c9f682d640ef..35059a14eb72 100644 --- a/drivers/acpi/acpica/utmath.c +++ b/drivers/acpi/acpica/utmath.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -70,9 +70,8 @@ ACPI_MODULE_NAME("utmath") * ******************************************************************************/ acpi_status -acpi_ut_short_divide(acpi_integer dividend, - u32 divisor, - acpi_integer * out_quotient, u32 * out_remainder) +acpi_ut_short_divide(u64 dividend, + u32 divisor, u64 *out_quotient, u32 *out_remainder) { union uint64_overlay dividend_ovl; union uint64_overlay quotient; @@ -126,9 +125,8 @@ acpi_ut_short_divide(acpi_integer dividend, ******************************************************************************/ acpi_status -acpi_ut_divide(acpi_integer in_dividend, - acpi_integer in_divisor, - acpi_integer * out_quotient, acpi_integer * out_remainder) +acpi_ut_divide(u64 in_dividend, + u64 in_divisor, u64 *out_quotient, u64 *out_remainder) { union uint64_overlay dividend; union uint64_overlay divisor; @@ -199,9 +197,8 @@ acpi_ut_divide(acpi_integer in_dividend, * The 64-bit remainder must be generated. */ partial1 = quotient.part.lo * divisor.part.hi; - partial2.full = - (acpi_integer) quotient.part.lo * divisor.part.lo; - partial3.full = (acpi_integer) partial2.part.hi + partial1; + partial2.full = (u64) quotient.part.lo * divisor.part.lo; + partial3.full = (u64) partial2.part.hi + partial1; remainder.part.hi = partial3.part.lo; remainder.part.lo = partial2.part.lo; @@ -257,9 +254,8 @@ acpi_ut_divide(acpi_integer in_dividend, * ******************************************************************************/ acpi_status -acpi_ut_short_divide(acpi_integer in_dividend, - u32 divisor, - acpi_integer * out_quotient, u32 * out_remainder) +acpi_ut_short_divide(u64 in_dividend, + u32 divisor, u64 *out_quotient, u32 *out_remainder) { ACPI_FUNCTION_TRACE(ut_short_divide); @@ -284,9 +280,8 @@ acpi_ut_short_divide(acpi_integer in_dividend, } acpi_status -acpi_ut_divide(acpi_integer in_dividend, - acpi_integer in_divisor, - acpi_integer * out_quotient, acpi_integer * out_remainder) +acpi_ut_divide(u64 in_dividend, + u64 in_divisor, u64 *out_quotient, u64 *out_remainder) { ACPI_FUNCTION_TRACE(ut_divide); diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index 6c6a5137b728..e8d0724ee403 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -205,7 +205,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) /* Guard against multiple allocations of ID to the same location */ if (*owner_id) { - ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists", + ACPI_ERROR((AE_INFO, "Owner ID [0x%2.2X] already exists", *owner_id)); return_ACPI_STATUS(AE_ALREADY_EXISTS); } @@ -315,7 +315,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) /* Zero is not a valid owner_iD */ if (owner_id == 0) { - ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id)); + ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id)); return_VOID; } @@ -341,7 +341,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) acpi_gbl_owner_id_mask[index] ^= bit; } else { ACPI_ERROR((AE_INFO, - "Release of non-allocated OwnerId: %2.2X", + "Release of non-allocated OwnerId: 0x%2.2X", owner_id + 1)); } @@ -724,13 +724,12 @@ acpi_name acpi_ut_repair_name(char *name) * ******************************************************************************/ -acpi_status -acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer) { u32 this_digit = 0; - acpi_integer return_value = 0; - acpi_integer quotient; - acpi_integer dividend; + u64 return_value = 0; + u64 quotient; + u64 dividend; u32 to_integer_op = (base == ACPI_ANY_BASE); u32 mode32 = (acpi_gbl_integer_byte_width == 4); u8 valid_digits = 0; @@ -844,9 +843,8 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) /* Divide the digit into the correct position */ - (void) - acpi_ut_short_divide((dividend - (acpi_integer) this_digit), - base, "ient, NULL); + (void)acpi_ut_short_divide((dividend - (u64) this_digit), + base, "ient, NULL); if (return_value > quotient) { if (to_integer_op) { diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index 80bb65154117..058b3df48271 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -50,7 +50,7 @@ ACPI_MODULE_NAME("utmutex") /* Local prototypes */ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id); -static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id); +static void acpi_ut_delete_mutex(acpi_mutex_handle mutex_id); /******************************************************************************* * @@ -114,7 +114,7 @@ void acpi_ut_mutex_terminate(void) /* Delete each predefined mutex object */ for (i = 0; i < ACPI_NUM_MUTEX; i++) { - (void)acpi_ut_delete_mutex(i); + acpi_ut_delete_mutex(i); } /* Delete the spinlocks */ @@ -146,10 +146,6 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id) ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id); - if (mutex_id > ACPI_MAX_MUTEX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - if (!acpi_gbl_mutex_info[mutex_id].mutex) { status = acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex); @@ -173,21 +169,15 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id) * ******************************************************************************/ -static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) +static void acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) { ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id); - if (mutex_id > ACPI_MAX_MUTEX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex); acpi_gbl_mutex_info[mutex_id].mutex = NULL; acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; - - return_ACPI_STATUS(AE_OK); } /******************************************************************************* @@ -268,7 +258,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id; } else { ACPI_EXCEPTION((AE_INFO, status, - "Thread %p could not acquire Mutex [%X]", + "Thread %p could not acquire Mutex [0x%X]", ACPI_CAST_PTR(void, this_thread_id), mutex_id)); } @@ -307,7 +297,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) */ if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) { ACPI_ERROR((AE_INFO, - "Mutex [%X] is not acquired, cannot release", + "Mutex [0x%X] is not acquired, cannot release", mutex_id)); return (AE_NOT_ACQUIRED); diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index 42e658b543f1..fd1fa2749ea5 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -251,7 +251,7 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size) buffer = ACPI_ALLOCATE_ZEROED(buffer_size); if (!buffer) { - ACPI_ERROR((AE_INFO, "Could not allocate size %X", + ACPI_ERROR((AE_INFO, "Could not allocate size %u", (u32) buffer_size)); acpi_ut_remove_reference(buffer_desc); return_PTR(NULL); @@ -303,7 +303,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) */ string = ACPI_ALLOCATE_ZEROED(string_size + 1); if (!string) { - ACPI_ERROR((AE_INFO, "Could not allocate size %X", + ACPI_ERROR((AE_INFO, "Could not allocate size %u", (u32) string_size)); acpi_ut_remove_reference(string_desc); return_PTR(NULL); @@ -533,7 +533,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, */ ACPI_ERROR((AE_INFO, "Cannot convert to external object - " - "unsupported Reference Class [%s] %X in object %p", + "unsupported Reference Class [%s] 0x%X in object %p", acpi_ut_get_reference_name(internal_object), internal_object->reference.class, internal_object)); @@ -545,7 +545,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, default: ACPI_ERROR((AE_INFO, "Cannot convert to external object - " - "unsupported type [%s] %X in object %p", + "unsupported type [%s] 0x%X in object %p", acpi_ut_get_object_type_name(internal_object), internal_object->common.type, internal_object)); status = AE_TYPE; diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index 91b7c00236f4..7965919000b1 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c index 0440c958f5a4..d35d109b8da2 100644 --- a/drivers/acpi/acpica/utstate.c +++ b/drivers/acpi/acpica/utstate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index b1f5f680bc78..db9d8ca57987 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2010, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig new file mode 100644 index 000000000000..f8c668f27b5a --- /dev/null +++ b/drivers/acpi/apei/Kconfig @@ -0,0 +1,30 @@ +config ACPI_APEI + bool "ACPI Platform Error Interface (APEI)" + depends on X86 + help + APEI allows to report errors (for example from the chipset) + to the operating system. This improves NMI handling + especially. In addition it supports error serialization and + error injection. + +config ACPI_APEI_GHES + tristate "APEI Generic Hardware Error Source" + depends on ACPI_APEI && X86 + select ACPI_HED + help + Generic Hardware Error Source provides a way to report + platform hardware errors (such as that from chipset). It + works in so called "Firmware First" mode, that is, hardware + errors are reported to firmware firstly, then reported to + Linux by firmware. This way, some non-standard hardware + error registers or non-standard hardware link can be checked + by firmware to produce more valuable hardware error + information for Linux. + +config ACPI_APEI_EINJ + tristate "APEI Error INJection (EINJ)" + depends on ACPI_APEI && DEBUG_FS + help + EINJ provides a hardware error injection mechanism, it is + mainly used for debugging and testing the other parts of + APEI and some other RAS features. diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile new file mode 100644 index 000000000000..b13b03a17789 --- /dev/null +++ b/drivers/acpi/apei/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_ACPI_APEI) += apei.o +obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o +obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o + +apei-y := apei-base.o hest.o cper.o erst.o diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c new file mode 100644 index 000000000000..216e1e948ff6 --- /dev/null +++ b/drivers/acpi/apei/apei-base.c @@ -0,0 +1,594 @@ +/* + * apei-base.c - ACPI Platform Error Interface (APEI) supporting + * infrastructure + * + * APEI allows to report errors (for example from the chipset) to the + * the operating system. This improves NMI handling especially. In + * addition it supports error serialization and error injection. + * + * For more information about APEI, please refer to ACPI Specification + * version 4.0, chapter 17. + * + * This file has Common functions used by more than one APEI table, + * including framework of interpreter for ERST and EINJ; resource + * management for APEI registers. + * + * Copyright (C) 2009, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/kref.h> +#include <linux/rculist.h> +#include <linux/interrupt.h> +#include <linux/debugfs.h> +#include <acpi/atomicio.h> + +#include "apei-internal.h" + +#define APEI_PFX "APEI: " + +/* + * APEI ERST (Error Record Serialization Table) and EINJ (Error + * INJection) interpreter framework. + */ + +#define APEI_EXEC_PRESERVE_REGISTER 0x1 + +void apei_exec_ctx_init(struct apei_exec_context *ctx, + struct apei_exec_ins_type *ins_table, + u32 instructions, + struct acpi_whea_header *action_table, + u32 entries) +{ + ctx->ins_table = ins_table; + ctx->instructions = instructions; + ctx->action_table = action_table; + ctx->entries = entries; +} +EXPORT_SYMBOL_GPL(apei_exec_ctx_init); + +int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val) +{ + int rc; + + rc = acpi_atomic_read(val, &entry->register_region); + if (rc) + return rc; + *val >>= entry->register_region.bit_offset; + *val &= entry->mask; + + return 0; +} + +int apei_exec_read_register(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 val = 0; + + rc = __apei_exec_read_register(entry, &val); + if (rc) + return rc; + ctx->value = val; + + return 0; +} +EXPORT_SYMBOL_GPL(apei_exec_read_register); + +int apei_exec_read_register_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + + rc = apei_exec_read_register(ctx, entry); + if (rc) + return rc; + ctx->value = (ctx->value == entry->value); + + return 0; +} +EXPORT_SYMBOL_GPL(apei_exec_read_register_value); + +int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val) +{ + int rc; + + val &= entry->mask; + val <<= entry->register_region.bit_offset; + if (entry->flags & APEI_EXEC_PRESERVE_REGISTER) { + u64 valr = 0; + rc = acpi_atomic_read(&valr, &entry->register_region); + if (rc) + return rc; + valr &= ~(entry->mask << entry->register_region.bit_offset); + val |= valr; + } + rc = acpi_atomic_write(val, &entry->register_region); + + return rc; +} + +int apei_exec_write_register(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_write_register(entry, ctx->value); +} +EXPORT_SYMBOL_GPL(apei_exec_write_register); + +int apei_exec_write_register_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + + ctx->value = entry->value; + rc = apei_exec_write_register(ctx, entry); + + return rc; +} +EXPORT_SYMBOL_GPL(apei_exec_write_register_value); + +int apei_exec_noop(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return 0; +} +EXPORT_SYMBOL_GPL(apei_exec_noop); + +/* + * Interpret the specified action. Go through whole action table, + * execute all instructions belong to the action. + */ +int apei_exec_run(struct apei_exec_context *ctx, u8 action) +{ + int rc; + u32 i, ip; + struct acpi_whea_header *entry; + apei_exec_ins_func_t run; + + ctx->ip = 0; + + /* + * "ip" is the instruction pointer of current instruction, + * "ctx->ip" specifies the next instruction to executed, + * instruction "run" function may change the "ctx->ip" to + * implement "goto" semantics. + */ +rewind: + ip = 0; + for (i = 0; i < ctx->entries; i++) { + entry = &ctx->action_table[i]; + if (entry->action != action) + continue; + if (ip == ctx->ip) { + if (entry->instruction >= ctx->instructions || + !ctx->ins_table[entry->instruction].run) { + pr_warning(FW_WARN APEI_PFX + "Invalid action table, unknown instruction type: %d\n", + entry->instruction); + return -EINVAL; + } + run = ctx->ins_table[entry->instruction].run; + rc = run(ctx, entry); + if (rc < 0) + return rc; + else if (rc != APEI_EXEC_SET_IP) + ctx->ip++; + } + ip++; + if (ctx->ip < ip) + goto rewind; + } + + return 0; +} +EXPORT_SYMBOL_GPL(apei_exec_run); + +typedef int (*apei_exec_entry_func_t)(struct apei_exec_context *ctx, + struct acpi_whea_header *entry, + void *data); + +static int apei_exec_for_each_entry(struct apei_exec_context *ctx, + apei_exec_entry_func_t func, + void *data, + int *end) +{ + u8 ins; + int i, rc; + struct acpi_whea_header *entry; + struct apei_exec_ins_type *ins_table = ctx->ins_table; + + for (i = 0; i < ctx->entries; i++) { + entry = ctx->action_table + i; + ins = entry->instruction; + if (end) + *end = i; + if (ins >= ctx->instructions || !ins_table[ins].run) { + pr_warning(FW_WARN APEI_PFX + "Invalid action table, unknown instruction type: %d\n", + ins); + return -EINVAL; + } + rc = func(ctx, entry, data); + if (rc) + return rc; + } + + return 0; +} + +static int pre_map_gar_callback(struct apei_exec_context *ctx, + struct acpi_whea_header *entry, + void *data) +{ + u8 ins = entry->instruction; + + if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) + return acpi_pre_map_gar(&entry->register_region); + + return 0; +} + +/* + * Pre-map all GARs in action table to make it possible to access them + * in NMI handler. + */ +int apei_exec_pre_map_gars(struct apei_exec_context *ctx) +{ + int rc, end; + + rc = apei_exec_for_each_entry(ctx, pre_map_gar_callback, + NULL, &end); + if (rc) { + struct apei_exec_context ctx_unmap; + memcpy(&ctx_unmap, ctx, sizeof(*ctx)); + ctx_unmap.entries = end; + apei_exec_post_unmap_gars(&ctx_unmap); + } + + return rc; +} +EXPORT_SYMBOL_GPL(apei_exec_pre_map_gars); + +static int post_unmap_gar_callback(struct apei_exec_context *ctx, + struct acpi_whea_header *entry, + void *data) +{ + u8 ins = entry->instruction; + + if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) + acpi_post_unmap_gar(&entry->register_region); + + return 0; +} + +/* Post-unmap all GAR in action table. */ +int apei_exec_post_unmap_gars(struct apei_exec_context *ctx) +{ + return apei_exec_for_each_entry(ctx, post_unmap_gar_callback, + NULL, NULL); +} +EXPORT_SYMBOL_GPL(apei_exec_post_unmap_gars); + +/* + * Resource management for GARs in APEI + */ +struct apei_res { + struct list_head list; + unsigned long start; + unsigned long end; +}; + +/* Collect all resources requested, to avoid conflict */ +struct apei_resources apei_resources_all = { + .iomem = LIST_HEAD_INIT(apei_resources_all.iomem), + .ioport = LIST_HEAD_INIT(apei_resources_all.ioport), +}; + +static int apei_res_add(struct list_head *res_list, + unsigned long start, unsigned long size) +{ + struct apei_res *res, *resn, *res_ins = NULL; + unsigned long end = start + size; + + if (end <= start) + return 0; +repeat: + list_for_each_entry_safe(res, resn, res_list, list) { + if (res->start > end || res->end < start) + continue; + else if (end <= res->end && start >= res->start) { + kfree(res_ins); + return 0; + } + list_del(&res->list); + res->start = start = min(res->start, start); + res->end = end = max(res->end, end); + kfree(res_ins); + res_ins = res; + goto repeat; + } + + if (res_ins) + list_add(&res_ins->list, res_list); + else { + res_ins = kmalloc(sizeof(*res), GFP_KERNEL); + if (!res_ins) + return -ENOMEM; + res_ins->start = start; + res_ins->end = end; + list_add(&res_ins->list, res_list); + } + + return 0; +} + +static int apei_res_sub(struct list_head *res_list1, + struct list_head *res_list2) +{ + struct apei_res *res1, *resn1, *res2, *res; + res1 = list_entry(res_list1->next, struct apei_res, list); + resn1 = list_entry(res1->list.next, struct apei_res, list); + while (&res1->list != res_list1) { + list_for_each_entry(res2, res_list2, list) { + if (res1->start >= res2->end || + res1->end <= res2->start) + continue; + else if (res1->end <= res2->end && + res1->start >= res2->start) { + list_del(&res1->list); + kfree(res1); + break; + } else if (res1->end > res2->end && + res1->start < res2->start) { + res = kmalloc(sizeof(*res), GFP_KERNEL); + if (!res) + return -ENOMEM; + res->start = res2->end; + res->end = res1->end; + res1->end = res2->start; + list_add(&res->list, &res1->list); + resn1 = res; + } else { + if (res1->start < res2->start) + res1->end = res2->start; + else + res1->start = res2->end; + } + } + res1 = resn1; + resn1 = list_entry(resn1->list.next, struct apei_res, list); + } + + return 0; +} + +static void apei_res_clean(struct list_head *res_list) +{ + struct apei_res *res, *resn; + + list_for_each_entry_safe(res, resn, res_list, list) { + list_del(&res->list); + kfree(res); + } +} + +void apei_resources_fini(struct apei_resources *resources) +{ + apei_res_clean(&resources->iomem); + apei_res_clean(&resources->ioport); +} +EXPORT_SYMBOL_GPL(apei_resources_fini); + +static int apei_resources_merge(struct apei_resources *resources1, + struct apei_resources *resources2) +{ + int rc; + struct apei_res *res; + + list_for_each_entry(res, &resources2->iomem, list) { + rc = apei_res_add(&resources1->iomem, res->start, + res->end - res->start); + if (rc) + return rc; + } + list_for_each_entry(res, &resources2->ioport, list) { + rc = apei_res_add(&resources1->ioport, res->start, + res->end - res->start); + if (rc) + return rc; + } + + return 0; +} + +/* + * EINJ has two groups of GARs (EINJ table entry and trigger table + * entry), so common resources are subtracted from the trigger table + * resources before the second requesting. + */ +int apei_resources_sub(struct apei_resources *resources1, + struct apei_resources *resources2) +{ + int rc; + + rc = apei_res_sub(&resources1->iomem, &resources2->iomem); + if (rc) + return rc; + return apei_res_sub(&resources1->ioport, &resources2->ioport); +} +EXPORT_SYMBOL_GPL(apei_resources_sub); + +/* + * IO memory/port rersource management mechanism is used to check + * whether memory/port area used by GARs conflicts with normal memory + * or IO memory/port of devices. + */ +int apei_resources_request(struct apei_resources *resources, + const char *desc) +{ + struct apei_res *res, *res_bak; + struct resource *r; + + apei_resources_sub(resources, &apei_resources_all); + + list_for_each_entry(res, &resources->iomem, list) { + r = request_mem_region(res->start, res->end - res->start, + desc); + if (!r) { + pr_err(APEI_PFX + "Can not request iomem region <%016llx-%016llx> for GARs.\n", + (unsigned long long)res->start, + (unsigned long long)res->end); + res_bak = res; + goto err_unmap_iomem; + } + } + + list_for_each_entry(res, &resources->ioport, list) { + r = request_region(res->start, res->end - res->start, desc); + if (!r) { + pr_err(APEI_PFX + "Can not request ioport region <%016llx-%016llx> for GARs.\n", + (unsigned long long)res->start, + (unsigned long long)res->end); + res_bak = res; + goto err_unmap_ioport; + } + } + + apei_resources_merge(&apei_resources_all, resources); + + return 0; +err_unmap_ioport: + list_for_each_entry(res, &resources->ioport, list) { + if (res == res_bak) + break; + release_mem_region(res->start, res->end - res->start); + } + res_bak = NULL; +err_unmap_iomem: + list_for_each_entry(res, &resources->iomem, list) { + if (res == res_bak) + break; + release_region(res->start, res->end - res->start); + } + return -EINVAL; +} +EXPORT_SYMBOL_GPL(apei_resources_request); + +void apei_resources_release(struct apei_resources *resources) +{ + struct apei_res *res; + + list_for_each_entry(res, &resources->iomem, list) + release_mem_region(res->start, res->end - res->start); + list_for_each_entry(res, &resources->ioport, list) + release_region(res->start, res->end - res->start); + + apei_resources_sub(&apei_resources_all, resources); +} +EXPORT_SYMBOL_GPL(apei_resources_release); + +static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr) +{ + u32 width, space_id; + + width = reg->bit_width; + space_id = reg->space_id; + /* Handle possible alignment issues */ + memcpy(paddr, ®->address, sizeof(*paddr)); + if (!*paddr) { + pr_warning(FW_BUG APEI_PFX + "Invalid physical address in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + if ((width != 8) && (width != 16) && (width != 32) && (width != 64)) { + pr_warning(FW_BUG APEI_PFX + "Invalid bit width in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + if (space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY && + space_id != ACPI_ADR_SPACE_SYSTEM_IO) { + pr_warning(FW_BUG APEI_PFX + "Invalid address space type in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + return 0; +} + +static int collect_res_callback(struct apei_exec_context *ctx, + struct acpi_whea_header *entry, + void *data) +{ + struct apei_resources *resources = data; + struct acpi_generic_address *reg = &entry->register_region; + u8 ins = entry->instruction; + u64 paddr; + int rc; + + if (!(ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER)) + return 0; + + rc = apei_check_gar(reg, &paddr); + if (rc) + return rc; + + switch (reg->space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + return apei_res_add(&resources->iomem, paddr, + reg->bit_width / 8); + case ACPI_ADR_SPACE_SYSTEM_IO: + return apei_res_add(&resources->ioport, paddr, + reg->bit_width / 8); + default: + return -EINVAL; + } +} + +/* + * Same register may be used by multiple instructions in GARs, so + * resources are collected before requesting. + */ +int apei_exec_collect_resources(struct apei_exec_context *ctx, + struct apei_resources *resources) +{ + return apei_exec_for_each_entry(ctx, collect_res_callback, + resources, NULL); +} +EXPORT_SYMBOL_GPL(apei_exec_collect_resources); + +struct dentry *apei_get_debugfs_dir(void) +{ + static struct dentry *dapei; + + if (!dapei) + dapei = debugfs_create_dir("apei", NULL); + + return dapei; +} +EXPORT_SYMBOL_GPL(apei_get_debugfs_dir); diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h new file mode 100644 index 000000000000..18df1e940276 --- /dev/null +++ b/drivers/acpi/apei/apei-internal.h @@ -0,0 +1,114 @@ +/* + * apei-internal.h - ACPI Platform Error Interface internal + * definations. + */ + +#ifndef APEI_INTERNAL_H +#define APEI_INTERNAL_H + +#include <linux/cper.h> + +struct apei_exec_context; + +typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); + +#define APEI_EXEC_INS_ACCESS_REGISTER 0x0001 + +struct apei_exec_ins_type { + u32 flags; + apei_exec_ins_func_t run; +}; + +struct apei_exec_context { + u32 ip; + u64 value; + u64 var1; + u64 var2; + u64 src_base; + u64 dst_base; + struct apei_exec_ins_type *ins_table; + u32 instructions; + struct acpi_whea_header *action_table; + u32 entries; +}; + +void apei_exec_ctx_init(struct apei_exec_context *ctx, + struct apei_exec_ins_type *ins_table, + u32 instructions, + struct acpi_whea_header *action_table, + u32 entries); + +static inline void apei_exec_ctx_set_input(struct apei_exec_context *ctx, + u64 input) +{ + ctx->value = input; +} + +static inline u64 apei_exec_ctx_get_output(struct apei_exec_context *ctx) +{ + return ctx->value; +} + +int apei_exec_run(struct apei_exec_context *ctx, u8 action); + +/* Common instruction implementation */ + +/* IP has been set in instruction function */ +#define APEI_EXEC_SET_IP 1 + +int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val); +int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val); +int apei_exec_read_register(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); +int apei_exec_read_register_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); +int apei_exec_write_register(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); +int apei_exec_write_register_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); +int apei_exec_noop(struct apei_exec_context *ctx, + struct acpi_whea_header *entry); +int apei_exec_pre_map_gars(struct apei_exec_context *ctx); +int apei_exec_post_unmap_gars(struct apei_exec_context *ctx); + +struct apei_resources { + struct list_head iomem; + struct list_head ioport; +}; + +static inline void apei_resources_init(struct apei_resources *resources) +{ + INIT_LIST_HEAD(&resources->iomem); + INIT_LIST_HEAD(&resources->ioport); +} + +void apei_resources_fini(struct apei_resources *resources); +int apei_resources_sub(struct apei_resources *resources1, + struct apei_resources *resources2); +int apei_resources_request(struct apei_resources *resources, + const char *desc); +void apei_resources_release(struct apei_resources *resources); +int apei_exec_collect_resources(struct apei_exec_context *ctx, + struct apei_resources *resources); + +struct dentry; +struct dentry *apei_get_debugfs_dir(void); + +#define apei_estatus_for_each_section(estatus, section) \ + for (section = (struct acpi_hest_generic_data *)(estatus + 1); \ + (void *)section - (void *)estatus < estatus->data_length; \ + section = (void *)(section+1) + section->error_data_length) + +static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus) +{ + if (estatus->raw_data_length) + return estatus->raw_data_offset + \ + estatus->raw_data_length; + else + return sizeof(*estatus) + estatus->data_length; +} + +int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus); +int apei_estatus_check(const struct acpi_hest_generic_status *estatus); +#endif diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c new file mode 100644 index 000000000000..f4cf2fc4c8c1 --- /dev/null +++ b/drivers/acpi/apei/cper.c @@ -0,0 +1,84 @@ +/* + * UEFI Common Platform Error Record (CPER) support + * + * Copyright (C) 2010, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * CPER is the format used to describe platform hardware error by + * various APEI tables, such as ERST, BERT and HEST etc. + * + * For more information about CPER, please refer to Appendix N of UEFI + * Specification version 2.3. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/time.h> +#include <linux/cper.h> +#include <linux/acpi.h> + +/* + * CPER record ID need to be unique even after reboot, because record + * ID is used as index for ERST storage, while CPER records from + * multiple boot may co-exist in ERST. + */ +u64 cper_next_record_id(void) +{ + static atomic64_t seq; + + if (!atomic64_read(&seq)) + atomic64_set(&seq, ((u64)get_seconds()) << 32); + + return atomic64_inc_return(&seq); +} +EXPORT_SYMBOL_GPL(cper_next_record_id); + +int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus) +{ + if (estatus->data_length && + estatus->data_length < sizeof(struct acpi_hest_generic_data)) + return -EINVAL; + if (estatus->raw_data_length && + estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_GPL(apei_estatus_check_header); + +int apei_estatus_check(const struct acpi_hest_generic_status *estatus) +{ + struct acpi_hest_generic_data *gdata; + unsigned int data_len, gedata_len; + int rc; + + rc = apei_estatus_check_header(estatus); + if (rc) + return rc; + data_len = estatus->data_length; + gdata = (struct acpi_hest_generic_data *)(estatus + 1); + while (data_len > sizeof(*gdata)) { + gedata_len = gdata->error_data_length; + if (gedata_len > data_len - sizeof(*gdata)) + return -EINVAL; + data_len -= gedata_len + sizeof(*gdata); + } + if (data_len) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_GPL(apei_estatus_check); diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c new file mode 100644 index 000000000000..465c885938ee --- /dev/null +++ b/drivers/acpi/apei/einj.c @@ -0,0 +1,548 @@ +/* + * APEI Error INJection support + * + * EINJ provides a hardware error injection mechanism, this is useful + * for debugging and testing of other APEI and RAS features. + * + * For more information about EINJ, please refer to ACPI Specification + * version 4.0, section 17.5. + * + * Copyright 2009-2010 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/nmi.h> +#include <linux/delay.h> +#include <acpi/acpi.h> + +#include "apei-internal.h" + +#define EINJ_PFX "EINJ: " + +#define SPIN_UNIT 100 /* 100ns */ +/* Firmware should respond within 1 miliseconds */ +#define FIRMWARE_TIMEOUT (1 * NSEC_PER_MSEC) + +/* + * Some BIOSes allow parameters to the SET_ERROR_TYPE entries in the + * EINJ table through an unpublished extension. Use with caution as + * most will ignore the parameter and make their own choice of address + * for error injection. + */ +struct einj_parameter { + u64 type; + u64 reserved1; + u64 reserved2; + u64 param1; + u64 param2; +}; + +#define EINJ_OP_BUSY 0x1 +#define EINJ_STATUS_SUCCESS 0x0 +#define EINJ_STATUS_FAIL 0x1 +#define EINJ_STATUS_INVAL 0x2 + +#define EINJ_TAB_ENTRY(tab) \ + ((struct acpi_whea_header *)((char *)(tab) + \ + sizeof(struct acpi_table_einj))) + +static struct acpi_table_einj *einj_tab; + +static struct apei_resources einj_resources; + +static struct apei_exec_ins_type einj_ins_type[] = { + [ACPI_EINJ_READ_REGISTER] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_read_register, + }, + [ACPI_EINJ_READ_REGISTER_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_read_register_value, + }, + [ACPI_EINJ_WRITE_REGISTER] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_write_register, + }, + [ACPI_EINJ_WRITE_REGISTER_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_write_register_value, + }, + [ACPI_EINJ_NOOP] = { + .flags = 0, + .run = apei_exec_noop, + }, +}; + +/* + * Prevent EINJ interpreter to run simultaneously, because the + * corresponding firmware implementation may not work properly when + * invoked simultaneously. + */ +static DEFINE_MUTEX(einj_mutex); + +static struct einj_parameter *einj_param; + +static void einj_exec_ctx_init(struct apei_exec_context *ctx) +{ + apei_exec_ctx_init(ctx, einj_ins_type, ARRAY_SIZE(einj_ins_type), + EINJ_TAB_ENTRY(einj_tab), einj_tab->entries); +} + +static int __einj_get_available_error_type(u32 *type) +{ + struct apei_exec_context ctx; + int rc; + + einj_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_EINJ_GET_ERROR_TYPE); + if (rc) + return rc; + *type = apei_exec_ctx_get_output(&ctx); + + return 0; +} + +/* Get error injection capabilities of the platform */ +static int einj_get_available_error_type(u32 *type) +{ + int rc; + + mutex_lock(&einj_mutex); + rc = __einj_get_available_error_type(type); + mutex_unlock(&einj_mutex); + + return rc; +} + +static int einj_timedout(u64 *t) +{ + if ((s64)*t < SPIN_UNIT) { + pr_warning(FW_WARN EINJ_PFX + "Firmware does not respond in time\n"); + return 1; + } + *t -= SPIN_UNIT; + ndelay(SPIN_UNIT); + touch_nmi_watchdog(); + return 0; +} + +static u64 einj_get_parameter_address(void) +{ + int i; + u64 paddr = 0; + struct acpi_whea_header *entry; + + entry = EINJ_TAB_ENTRY(einj_tab); + for (i = 0; i < einj_tab->entries; i++) { + if (entry->action == ACPI_EINJ_SET_ERROR_TYPE && + entry->instruction == ACPI_EINJ_WRITE_REGISTER && + entry->register_region.space_id == + ACPI_ADR_SPACE_SYSTEM_MEMORY) + memcpy(&paddr, &entry->register_region.address, + sizeof(paddr)); + entry++; + } + + return paddr; +} + +/* do sanity check to trigger table */ +static int einj_check_trigger_header(struct acpi_einj_trigger *trigger_tab) +{ + if (trigger_tab->header_size != sizeof(struct acpi_einj_trigger)) + return -EINVAL; + if (trigger_tab->table_size > PAGE_SIZE || + trigger_tab->table_size <= trigger_tab->header_size) + return -EINVAL; + if (trigger_tab->entry_count != + (trigger_tab->table_size - trigger_tab->header_size) / + sizeof(struct acpi_einj_entry)) + return -EINVAL; + + return 0; +} + +/* Execute instructions in trigger error action table */ +static int __einj_error_trigger(u64 trigger_paddr) +{ + struct acpi_einj_trigger *trigger_tab = NULL; + struct apei_exec_context trigger_ctx; + struct apei_resources trigger_resources; + struct acpi_whea_header *trigger_entry; + struct resource *r; + u32 table_size; + int rc = -EIO; + + r = request_mem_region(trigger_paddr, sizeof(*trigger_tab), + "APEI EINJ Trigger Table"); + if (!r) { + pr_err(EINJ_PFX + "Can not request iomem region <%016llx-%016llx> for Trigger table.\n", + (unsigned long long)trigger_paddr, + (unsigned long long)trigger_paddr+sizeof(*trigger_tab)); + goto out; + } + trigger_tab = ioremap_cache(trigger_paddr, sizeof(*trigger_tab)); + if (!trigger_tab) { + pr_err(EINJ_PFX "Failed to map trigger table!\n"); + goto out_rel_header; + } + rc = einj_check_trigger_header(trigger_tab); + if (rc) { + pr_warning(FW_BUG EINJ_PFX + "The trigger error action table is invalid\n"); + goto out_rel_header; + } + rc = -EIO; + table_size = trigger_tab->table_size; + r = request_mem_region(trigger_paddr + sizeof(*trigger_tab), + table_size - sizeof(*trigger_tab), + "APEI EINJ Trigger Table"); + if (!r) { + pr_err(EINJ_PFX +"Can not request iomem region <%016llx-%016llx> for Trigger Table Entry.\n", + (unsigned long long)trigger_paddr+sizeof(*trigger_tab), + (unsigned long long)trigger_paddr + table_size); + goto out_rel_header; + } + iounmap(trigger_tab); + trigger_tab = ioremap_cache(trigger_paddr, table_size); + if (!trigger_tab) { + pr_err(EINJ_PFX "Failed to map trigger table!\n"); + goto out_rel_entry; + } + trigger_entry = (struct acpi_whea_header *) + ((char *)trigger_tab + sizeof(struct acpi_einj_trigger)); + apei_resources_init(&trigger_resources); + apei_exec_ctx_init(&trigger_ctx, einj_ins_type, + ARRAY_SIZE(einj_ins_type), + trigger_entry, trigger_tab->entry_count); + rc = apei_exec_collect_resources(&trigger_ctx, &trigger_resources); + if (rc) + goto out_fini; + rc = apei_resources_sub(&trigger_resources, &einj_resources); + if (rc) + goto out_fini; + rc = apei_resources_request(&trigger_resources, "APEI EINJ Trigger"); + if (rc) + goto out_fini; + rc = apei_exec_pre_map_gars(&trigger_ctx); + if (rc) + goto out_release; + + rc = apei_exec_run(&trigger_ctx, ACPI_EINJ_TRIGGER_ERROR); + + apei_exec_post_unmap_gars(&trigger_ctx); +out_release: + apei_resources_release(&trigger_resources); +out_fini: + apei_resources_fini(&trigger_resources); +out_rel_entry: + release_mem_region(trigger_paddr + sizeof(*trigger_tab), + table_size - sizeof(*trigger_tab)); +out_rel_header: + release_mem_region(trigger_paddr, sizeof(*trigger_tab)); +out: + if (trigger_tab) + iounmap(trigger_tab); + + return rc; +} + +static int __einj_error_inject(u32 type, u64 param1, u64 param2) +{ + struct apei_exec_context ctx; + u64 val, trigger_paddr, timeout = FIRMWARE_TIMEOUT; + int rc; + + einj_exec_ctx_init(&ctx); + + rc = apei_exec_run(&ctx, ACPI_EINJ_BEGIN_OPERATION); + if (rc) + return rc; + apei_exec_ctx_set_input(&ctx, type); + rc = apei_exec_run(&ctx, ACPI_EINJ_SET_ERROR_TYPE); + if (rc) + return rc; + if (einj_param) { + writeq(param1, &einj_param->param1); + writeq(param2, &einj_param->param2); + } + rc = apei_exec_run(&ctx, ACPI_EINJ_EXECUTE_OPERATION); + if (rc) + return rc; + for (;;) { + rc = apei_exec_run(&ctx, ACPI_EINJ_CHECK_BUSY_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + if (!(val & EINJ_OP_BUSY)) + break; + if (einj_timedout(&timeout)) + return -EIO; + } + rc = apei_exec_run(&ctx, ACPI_EINJ_GET_COMMAND_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + if (val != EINJ_STATUS_SUCCESS) + return -EBUSY; + + rc = apei_exec_run(&ctx, ACPI_EINJ_GET_TRIGGER_TABLE); + if (rc) + return rc; + trigger_paddr = apei_exec_ctx_get_output(&ctx); + rc = __einj_error_trigger(trigger_paddr); + if (rc) + return rc; + rc = apei_exec_run(&ctx, ACPI_EINJ_END_OPERATION); + + return rc; +} + +/* Inject the specified hardware error */ +static int einj_error_inject(u32 type, u64 param1, u64 param2) +{ + int rc; + + mutex_lock(&einj_mutex); + rc = __einj_error_inject(type, param1, param2); + mutex_unlock(&einj_mutex); + + return rc; +} + +static u32 error_type; +static u64 error_param1; +static u64 error_param2; +static struct dentry *einj_debug_dir; + +static int available_error_type_show(struct seq_file *m, void *v) +{ + int rc; + u32 available_error_type = 0; + + rc = einj_get_available_error_type(&available_error_type); + if (rc) + return rc; + if (available_error_type & 0x0001) + seq_printf(m, "0x00000001\tProcessor Correctable\n"); + if (available_error_type & 0x0002) + seq_printf(m, "0x00000002\tProcessor Uncorrectable non-fatal\n"); + if (available_error_type & 0x0004) + seq_printf(m, "0x00000004\tProcessor Uncorrectable fatal\n"); + if (available_error_type & 0x0008) + seq_printf(m, "0x00000008\tMemory Correctable\n"); + if (available_error_type & 0x0010) + seq_printf(m, "0x00000010\tMemory Uncorrectable non-fatal\n"); + if (available_error_type & 0x0020) + seq_printf(m, "0x00000020\tMemory Uncorrectable fatal\n"); + if (available_error_type & 0x0040) + seq_printf(m, "0x00000040\tPCI Express Correctable\n"); + if (available_error_type & 0x0080) + seq_printf(m, "0x00000080\tPCI Express Uncorrectable non-fatal\n"); + if (available_error_type & 0x0100) + seq_printf(m, "0x00000100\tPCI Express Uncorrectable fatal\n"); + if (available_error_type & 0x0200) + seq_printf(m, "0x00000200\tPlatform Correctable\n"); + if (available_error_type & 0x0400) + seq_printf(m, "0x00000400\tPlatform Uncorrectable non-fatal\n"); + if (available_error_type & 0x0800) + seq_printf(m, "0x00000800\tPlatform Uncorrectable fatal\n"); + + return 0; +} + +static int available_error_type_open(struct inode *inode, struct file *file) +{ + return single_open(file, available_error_type_show, NULL); +} + +static const struct file_operations available_error_type_fops = { + .open = available_error_type_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int error_type_get(void *data, u64 *val) +{ + *val = error_type; + + return 0; +} + +static int error_type_set(void *data, u64 val) +{ + int rc; + u32 available_error_type = 0; + + /* Only one error type can be specified */ + if (val & (val - 1)) + return -EINVAL; + rc = einj_get_available_error_type(&available_error_type); + if (rc) + return rc; + if (!(val & available_error_type)) + return -EINVAL; + error_type = val; + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(error_type_fops, error_type_get, + error_type_set, "0x%llx\n"); + +static int error_inject_set(void *data, u64 val) +{ + if (!error_type) + return -EINVAL; + + return einj_error_inject(error_type, error_param1, error_param2); +} + +DEFINE_SIMPLE_ATTRIBUTE(error_inject_fops, NULL, + error_inject_set, "%llu\n"); + +static int einj_check_table(struct acpi_table_einj *einj_tab) +{ + if (einj_tab->header_length != sizeof(struct acpi_table_einj)) + return -EINVAL; + if (einj_tab->header.length < sizeof(struct acpi_table_einj)) + return -EINVAL; + if (einj_tab->entries != + (einj_tab->header.length - sizeof(struct acpi_table_einj)) / + sizeof(struct acpi_einj_entry)) + return -EINVAL; + + return 0; +} + +static int __init einj_init(void) +{ + int rc; + u64 param_paddr; + acpi_status status; + struct dentry *fentry; + struct apei_exec_context ctx; + + if (acpi_disabled) + return -ENODEV; + + status = acpi_get_table(ACPI_SIG_EINJ, 0, + (struct acpi_table_header **)&einj_tab); + if (status == AE_NOT_FOUND) { + pr_info(EINJ_PFX "Table is not found!\n"); + return -ENODEV; + } else if (ACPI_FAILURE(status)) { + const char *msg = acpi_format_exception(status); + pr_err(EINJ_PFX "Failed to get table, %s\n", msg); + return -EINVAL; + } + + rc = einj_check_table(einj_tab); + if (rc) { + pr_warning(FW_BUG EINJ_PFX "EINJ table is invalid\n"); + return -EINVAL; + } + + rc = -ENOMEM; + einj_debug_dir = debugfs_create_dir("einj", apei_get_debugfs_dir()); + if (!einj_debug_dir) + goto err_cleanup; + fentry = debugfs_create_file("available_error_type", S_IRUSR, + einj_debug_dir, NULL, + &available_error_type_fops); + if (!fentry) + goto err_cleanup; + fentry = debugfs_create_file("error_type", S_IRUSR | S_IWUSR, + einj_debug_dir, NULL, &error_type_fops); + if (!fentry) + goto err_cleanup; + fentry = debugfs_create_x64("param1", S_IRUSR | S_IWUSR, + einj_debug_dir, &error_param1); + if (!fentry) + goto err_cleanup; + fentry = debugfs_create_x64("param2", S_IRUSR | S_IWUSR, + einj_debug_dir, &error_param2); + if (!fentry) + goto err_cleanup; + fentry = debugfs_create_file("error_inject", S_IWUSR, + einj_debug_dir, NULL, &error_inject_fops); + if (!fentry) + goto err_cleanup; + + apei_resources_init(&einj_resources); + einj_exec_ctx_init(&ctx); + rc = apei_exec_collect_resources(&ctx, &einj_resources); + if (rc) + goto err_fini; + rc = apei_resources_request(&einj_resources, "APEI EINJ"); + if (rc) + goto err_fini; + rc = apei_exec_pre_map_gars(&ctx); + if (rc) + goto err_release; + param_paddr = einj_get_parameter_address(); + if (param_paddr) { + einj_param = ioremap(param_paddr, sizeof(*einj_param)); + rc = -ENOMEM; + if (!einj_param) + goto err_unmap; + } + + pr_info(EINJ_PFX "Error INJection is initialized.\n"); + + return 0; + +err_unmap: + apei_exec_post_unmap_gars(&ctx); +err_release: + apei_resources_release(&einj_resources); +err_fini: + apei_resources_fini(&einj_resources); +err_cleanup: + debugfs_remove_recursive(einj_debug_dir); + + return rc; +} + +static void __exit einj_exit(void) +{ + struct apei_exec_context ctx; + + if (einj_param) + iounmap(einj_param); + einj_exec_ctx_init(&ctx); + apei_exec_post_unmap_gars(&ctx); + apei_resources_release(&einj_resources); + apei_resources_fini(&einj_resources); + debugfs_remove_recursive(einj_debug_dir); +} + +module_init(einj_init); +module_exit(einj_exit); + +MODULE_AUTHOR("Huang Ying"); +MODULE_DESCRIPTION("APEI Error INJection support"); +MODULE_LICENSE("GPL"); diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c new file mode 100644 index 000000000000..864dd46c346f --- /dev/null +++ b/drivers/acpi/apei/erst.c @@ -0,0 +1,855 @@ +/* + * APEI Error Record Serialization Table support + * + * ERST is a way provided by APEI to save and retrieve hardware error + * infomation to and from a persistent store. + * + * For more information about ERST, please refer to ACPI Specification + * version 4.0, section 17.4. + * + * Copyright 2010 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/acpi.h> +#include <linux/uaccess.h> +#include <linux/cper.h> +#include <linux/nmi.h> +#include <acpi/apei.h> + +#include "apei-internal.h" + +#define ERST_PFX "ERST: " + +/* ERST command status */ +#define ERST_STATUS_SUCCESS 0x0 +#define ERST_STATUS_NOT_ENOUGH_SPACE 0x1 +#define ERST_STATUS_HARDWARE_NOT_AVAILABLE 0x2 +#define ERST_STATUS_FAILED 0x3 +#define ERST_STATUS_RECORD_STORE_EMPTY 0x4 +#define ERST_STATUS_RECORD_NOT_FOUND 0x5 + +#define ERST_TAB_ENTRY(tab) \ + ((struct acpi_whea_header *)((char *)(tab) + \ + sizeof(struct acpi_table_erst))) + +#define SPIN_UNIT 100 /* 100ns */ +/* Firmware should respond within 1 miliseconds */ +#define FIRMWARE_TIMEOUT (1 * NSEC_PER_MSEC) +#define FIRMWARE_MAX_STALL 50 /* 50us */ + +int erst_disable; +EXPORT_SYMBOL_GPL(erst_disable); + +static struct acpi_table_erst *erst_tab; + +/* ERST Error Log Address Range atrributes */ +#define ERST_RANGE_RESERVED 0x0001 +#define ERST_RANGE_NVRAM 0x0002 +#define ERST_RANGE_SLOW 0x0004 + +/* + * ERST Error Log Address Range, used as buffer for reading/writing + * error records. + */ +static struct erst_erange { + u64 base; + u64 size; + void __iomem *vaddr; + u32 attr; +} erst_erange; + +/* + * Prevent ERST interpreter to run simultaneously, because the + * corresponding firmware implementation may not work properly when + * invoked simultaneously. + * + * It is used to provide exclusive accessing for ERST Error Log + * Address Range too. + */ +static DEFINE_SPINLOCK(erst_lock); + +static inline int erst_errno(int command_status) +{ + switch (command_status) { + case ERST_STATUS_SUCCESS: + return 0; + case ERST_STATUS_HARDWARE_NOT_AVAILABLE: + return -ENODEV; + case ERST_STATUS_NOT_ENOUGH_SPACE: + return -ENOSPC; + case ERST_STATUS_RECORD_STORE_EMPTY: + case ERST_STATUS_RECORD_NOT_FOUND: + return -ENOENT; + default: + return -EINVAL; + } +} + +static int erst_timedout(u64 *t, u64 spin_unit) +{ + if ((s64)*t < spin_unit) { + pr_warning(FW_WARN ERST_PFX + "Firmware does not respond in time\n"); + return 1; + } + *t -= spin_unit; + ndelay(spin_unit); + touch_nmi_watchdog(); + return 0; +} + +static int erst_exec_load_var1(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_read_register(entry, &ctx->var1); +} + +static int erst_exec_load_var2(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_read_register(entry, &ctx->var2); +} + +static int erst_exec_store_var1(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_write_register(entry, ctx->var1); +} + +static int erst_exec_add(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + ctx->var1 += ctx->var2; + return 0; +} + +static int erst_exec_subtract(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + ctx->var1 -= ctx->var2; + return 0; +} + +static int erst_exec_add_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 val; + + rc = __apei_exec_read_register(entry, &val); + if (rc) + return rc; + val += ctx->value; + rc = __apei_exec_write_register(entry, val); + return rc; +} + +static int erst_exec_subtract_value(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 val; + + rc = __apei_exec_read_register(entry, &val); + if (rc) + return rc; + val -= ctx->value; + rc = __apei_exec_write_register(entry, val); + return rc; +} + +static int erst_exec_stall(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + u64 stall_time; + + if (ctx->value > FIRMWARE_MAX_STALL) { + if (!in_nmi()) + pr_warning(FW_WARN ERST_PFX + "Too long stall time for stall instruction: %llx.\n", + ctx->value); + stall_time = FIRMWARE_MAX_STALL; + } else + stall_time = ctx->value; + udelay(stall_time); + return 0; +} + +static int erst_exec_stall_while_true(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 val; + u64 timeout = FIRMWARE_TIMEOUT; + u64 stall_time; + + if (ctx->var1 > FIRMWARE_MAX_STALL) { + if (!in_nmi()) + pr_warning(FW_WARN ERST_PFX + "Too long stall time for stall while true instruction: %llx.\n", + ctx->var1); + stall_time = FIRMWARE_MAX_STALL; + } else + stall_time = ctx->var1; + + for (;;) { + rc = __apei_exec_read_register(entry, &val); + if (rc) + return rc; + if (val != ctx->value) + break; + if (erst_timedout(&timeout, stall_time * NSEC_PER_USEC)) + return -EIO; + } + return 0; +} + +static int erst_exec_skip_next_instruction_if_true( + struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 val; + + rc = __apei_exec_read_register(entry, &val); + if (rc) + return rc; + if (val == ctx->value) { + ctx->ip += 2; + return APEI_EXEC_SET_IP; + } + + return 0; +} + +static int erst_exec_goto(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + ctx->ip = ctx->value; + return APEI_EXEC_SET_IP; +} + +static int erst_exec_set_src_address_base(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_read_register(entry, &ctx->src_base); +} + +static int erst_exec_set_dst_address_base(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + return __apei_exec_read_register(entry, &ctx->dst_base); +} + +static int erst_exec_move_data(struct apei_exec_context *ctx, + struct acpi_whea_header *entry) +{ + int rc; + u64 offset; + + rc = __apei_exec_read_register(entry, &offset); + if (rc) + return rc; + memmove((void *)ctx->dst_base + offset, + (void *)ctx->src_base + offset, + ctx->var2); + + return 0; +} + +static struct apei_exec_ins_type erst_ins_type[] = { + [ACPI_ERST_READ_REGISTER] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_read_register, + }, + [ACPI_ERST_READ_REGISTER_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_read_register_value, + }, + [ACPI_ERST_WRITE_REGISTER] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_write_register, + }, + [ACPI_ERST_WRITE_REGISTER_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = apei_exec_write_register_value, + }, + [ACPI_ERST_NOOP] = { + .flags = 0, + .run = apei_exec_noop, + }, + [ACPI_ERST_LOAD_VAR1] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_load_var1, + }, + [ACPI_ERST_LOAD_VAR2] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_load_var2, + }, + [ACPI_ERST_STORE_VAR1] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_store_var1, + }, + [ACPI_ERST_ADD] = { + .flags = 0, + .run = erst_exec_add, + }, + [ACPI_ERST_SUBTRACT] = { + .flags = 0, + .run = erst_exec_subtract, + }, + [ACPI_ERST_ADD_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_add_value, + }, + [ACPI_ERST_SUBTRACT_VALUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_subtract_value, + }, + [ACPI_ERST_STALL] = { + .flags = 0, + .run = erst_exec_stall, + }, + [ACPI_ERST_STALL_WHILE_TRUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_stall_while_true, + }, + [ACPI_ERST_SKIP_NEXT_IF_TRUE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_skip_next_instruction_if_true, + }, + [ACPI_ERST_GOTO] = { + .flags = 0, + .run = erst_exec_goto, + }, + [ACPI_ERST_SET_SRC_ADDRESS_BASE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_set_src_address_base, + }, + [ACPI_ERST_SET_DST_ADDRESS_BASE] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_set_dst_address_base, + }, + [ACPI_ERST_MOVE_DATA] = { + .flags = APEI_EXEC_INS_ACCESS_REGISTER, + .run = erst_exec_move_data, + }, +}; + +static inline void erst_exec_ctx_init(struct apei_exec_context *ctx) +{ + apei_exec_ctx_init(ctx, erst_ins_type, ARRAY_SIZE(erst_ins_type), + ERST_TAB_ENTRY(erst_tab), erst_tab->entries); +} + +static int erst_get_erange(struct erst_erange *range) +{ + struct apei_exec_context ctx; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_GET_ERROR_RANGE); + if (rc) + return rc; + range->base = apei_exec_ctx_get_output(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_GET_ERROR_LENGTH); + if (rc) + return rc; + range->size = apei_exec_ctx_get_output(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_GET_ERROR_ATTRIBUTES); + if (rc) + return rc; + range->attr = apei_exec_ctx_get_output(&ctx); + + return 0; +} + +static ssize_t __erst_get_record_count(void) +{ + struct apei_exec_context ctx; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_GET_RECORD_COUNT); + if (rc) + return rc; + return apei_exec_ctx_get_output(&ctx); +} + +ssize_t erst_get_record_count(void) +{ + ssize_t count; + unsigned long flags; + + if (erst_disable) + return -ENODEV; + + spin_lock_irqsave(&erst_lock, flags); + count = __erst_get_record_count(); + spin_unlock_irqrestore(&erst_lock, flags); + + return count; +} +EXPORT_SYMBOL_GPL(erst_get_record_count); + +static int __erst_get_next_record_id(u64 *record_id) +{ + struct apei_exec_context ctx; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_GET_RECORD_ID); + if (rc) + return rc; + *record_id = apei_exec_ctx_get_output(&ctx); + + return 0; +} + +/* + * Get the record ID of an existing error record on the persistent + * storage. If there is no error record on the persistent storage, the + * returned record_id is APEI_ERST_INVALID_RECORD_ID. + */ +int erst_get_next_record_id(u64 *record_id) +{ + int rc; + unsigned long flags; + + if (erst_disable) + return -ENODEV; + + spin_lock_irqsave(&erst_lock, flags); + rc = __erst_get_next_record_id(record_id); + spin_unlock_irqrestore(&erst_lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(erst_get_next_record_id); + +static int __erst_write_to_storage(u64 offset) +{ + struct apei_exec_context ctx; + u64 timeout = FIRMWARE_TIMEOUT; + u64 val; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_BEGIN_WRITE); + if (rc) + return rc; + apei_exec_ctx_set_input(&ctx, offset); + rc = apei_exec_run(&ctx, ACPI_ERST_SET_RECORD_OFFSET); + if (rc) + return rc; + rc = apei_exec_run(&ctx, ACPI_ERST_EXECUTE_OPERATION); + if (rc) + return rc; + for (;;) { + rc = apei_exec_run(&ctx, ACPI_ERST_CHECK_BUSY_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + if (!val) + break; + if (erst_timedout(&timeout, SPIN_UNIT)) + return -EIO; + } + rc = apei_exec_run(&ctx, ACPI_ERST_GET_COMMAND_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_END); + if (rc) + return rc; + + return erst_errno(val); +} + +static int __erst_read_from_storage(u64 record_id, u64 offset) +{ + struct apei_exec_context ctx; + u64 timeout = FIRMWARE_TIMEOUT; + u64 val; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_BEGIN_READ); + if (rc) + return rc; + apei_exec_ctx_set_input(&ctx, offset); + rc = apei_exec_run(&ctx, ACPI_ERST_SET_RECORD_OFFSET); + if (rc) + return rc; + apei_exec_ctx_set_input(&ctx, record_id); + rc = apei_exec_run(&ctx, ACPI_ERST_SET_RECORD_ID); + if (rc) + return rc; + rc = apei_exec_run(&ctx, ACPI_ERST_EXECUTE_OPERATION); + if (rc) + return rc; + for (;;) { + rc = apei_exec_run(&ctx, ACPI_ERST_CHECK_BUSY_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + if (!val) + break; + if (erst_timedout(&timeout, SPIN_UNIT)) + return -EIO; + }; + rc = apei_exec_run(&ctx, ACPI_ERST_GET_COMMAND_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_END); + if (rc) + return rc; + + return erst_errno(val); +} + +static int __erst_clear_from_storage(u64 record_id) +{ + struct apei_exec_context ctx; + u64 timeout = FIRMWARE_TIMEOUT; + u64 val; + int rc; + + erst_exec_ctx_init(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_BEGIN_CLEAR); + if (rc) + return rc; + apei_exec_ctx_set_input(&ctx, record_id); + rc = apei_exec_run(&ctx, ACPI_ERST_SET_RECORD_ID); + if (rc) + return rc; + rc = apei_exec_run(&ctx, ACPI_ERST_EXECUTE_OPERATION); + if (rc) + return rc; + for (;;) { + rc = apei_exec_run(&ctx, ACPI_ERST_CHECK_BUSY_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + if (!val) + break; + if (erst_timedout(&timeout, SPIN_UNIT)) + return -EIO; + } + rc = apei_exec_run(&ctx, ACPI_ERST_GET_COMMAND_STATUS); + if (rc) + return rc; + val = apei_exec_ctx_get_output(&ctx); + rc = apei_exec_run(&ctx, ACPI_ERST_END); + if (rc) + return rc; + + return erst_errno(val); +} + +/* NVRAM ERST Error Log Address Range is not supported yet */ +static void pr_unimpl_nvram(void) +{ + if (printk_ratelimit()) + pr_warning(ERST_PFX + "NVRAM ERST Log Address Range is not implemented yet\n"); +} + +static int __erst_write_to_nvram(const struct cper_record_header *record) +{ + /* do not print message, because printk is not safe for NMI */ + return -ENOSYS; +} + +static int __erst_read_to_erange_from_nvram(u64 record_id, u64 *offset) +{ + pr_unimpl_nvram(); + return -ENOSYS; +} + +static int __erst_clear_from_nvram(u64 record_id) +{ + pr_unimpl_nvram(); + return -ENOSYS; +} + +int erst_write(const struct cper_record_header *record) +{ + int rc; + unsigned long flags; + struct cper_record_header *rcd_erange; + + if (erst_disable) + return -ENODEV; + + if (memcmp(record->signature, CPER_SIG_RECORD, CPER_SIG_SIZE)) + return -EINVAL; + + if (erst_erange.attr & ERST_RANGE_NVRAM) { + if (!spin_trylock_irqsave(&erst_lock, flags)) + return -EBUSY; + rc = __erst_write_to_nvram(record); + spin_unlock_irqrestore(&erst_lock, flags); + return rc; + } + + if (record->record_length > erst_erange.size) + return -EINVAL; + + if (!spin_trylock_irqsave(&erst_lock, flags)) + return -EBUSY; + memcpy(erst_erange.vaddr, record, record->record_length); + rcd_erange = erst_erange.vaddr; + /* signature for serialization system */ + memcpy(&rcd_erange->persistence_information, "ER", 2); + + rc = __erst_write_to_storage(0); + spin_unlock_irqrestore(&erst_lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(erst_write); + +static int __erst_read_to_erange(u64 record_id, u64 *offset) +{ + int rc; + + if (erst_erange.attr & ERST_RANGE_NVRAM) + return __erst_read_to_erange_from_nvram( + record_id, offset); + + rc = __erst_read_from_storage(record_id, 0); + if (rc) + return rc; + *offset = 0; + + return 0; +} + +static ssize_t __erst_read(u64 record_id, struct cper_record_header *record, + size_t buflen) +{ + int rc; + u64 offset, len = 0; + struct cper_record_header *rcd_tmp; + + rc = __erst_read_to_erange(record_id, &offset); + if (rc) + return rc; + rcd_tmp = erst_erange.vaddr + offset; + len = rcd_tmp->record_length; + if (len <= buflen) + memcpy(record, rcd_tmp, len); + + return len; +} + +/* + * If return value > buflen, the buffer size is not big enough, + * else if return value < 0, something goes wrong, + * else everything is OK, and return value is record length + */ +ssize_t erst_read(u64 record_id, struct cper_record_header *record, + size_t buflen) +{ + ssize_t len; + unsigned long flags; + + if (erst_disable) + return -ENODEV; + + spin_lock_irqsave(&erst_lock, flags); + len = __erst_read(record_id, record, buflen); + spin_unlock_irqrestore(&erst_lock, flags); + return len; +} +EXPORT_SYMBOL_GPL(erst_read); + +/* + * If return value > buflen, the buffer size is not big enough, + * else if return value = 0, there is no more record to read, + * else if return value < 0, something goes wrong, + * else everything is OK, and return value is record length + */ +ssize_t erst_read_next(struct cper_record_header *record, size_t buflen) +{ + int rc; + ssize_t len; + unsigned long flags; + u64 record_id; + + if (erst_disable) + return -ENODEV; + + spin_lock_irqsave(&erst_lock, flags); + rc = __erst_get_next_record_id(&record_id); + if (rc) { + spin_unlock_irqrestore(&erst_lock, flags); + return rc; + } + /* no more record */ + if (record_id == APEI_ERST_INVALID_RECORD_ID) { + spin_unlock_irqrestore(&erst_lock, flags); + return 0; + } + + len = __erst_read(record_id, record, buflen); + spin_unlock_irqrestore(&erst_lock, flags); + + return len; +} +EXPORT_SYMBOL_GPL(erst_read_next); + +int erst_clear(u64 record_id) +{ + int rc; + unsigned long flags; + + if (erst_disable) + return -ENODEV; + + spin_lock_irqsave(&erst_lock, flags); + if (erst_erange.attr & ERST_RANGE_NVRAM) + rc = __erst_clear_from_nvram(record_id); + else + rc = __erst_clear_from_storage(record_id); + spin_unlock_irqrestore(&erst_lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(erst_clear); + +static int __init setup_erst_disable(char *str) +{ + erst_disable = 1; + return 0; +} + +__setup("erst_disable", setup_erst_disable); + +static int erst_check_table(struct acpi_table_erst *erst_tab) +{ + if (erst_tab->header_length != sizeof(struct acpi_table_erst)) + return -EINVAL; + if (erst_tab->header.length < sizeof(struct acpi_table_erst)) + return -EINVAL; + if (erst_tab->entries != + (erst_tab->header.length - sizeof(struct acpi_table_erst)) / + sizeof(struct acpi_erst_entry)) + return -EINVAL; + + return 0; +} + +static int __init erst_init(void) +{ + int rc = 0; + acpi_status status; + struct apei_exec_context ctx; + struct apei_resources erst_resources; + struct resource *r; + + if (acpi_disabled) + goto err; + + if (erst_disable) { + pr_info(ERST_PFX + "Error Record Serialization Table (ERST) support is disabled.\n"); + goto err; + } + + status = acpi_get_table(ACPI_SIG_ERST, 0, + (struct acpi_table_header **)&erst_tab); + if (status == AE_NOT_FOUND) { + pr_info(ERST_PFX "Table is not found!\n"); + goto err; + } else if (ACPI_FAILURE(status)) { + const char *msg = acpi_format_exception(status); + pr_err(ERST_PFX "Failed to get table, %s\n", msg); + rc = -EINVAL; + goto err; + } + + rc = erst_check_table(erst_tab); + if (rc) { + pr_err(FW_BUG ERST_PFX "ERST table is invalid\n"); + goto err; + } + + apei_resources_init(&erst_resources); + erst_exec_ctx_init(&ctx); + rc = apei_exec_collect_resources(&ctx, &erst_resources); + if (rc) + goto err_fini; + rc = apei_resources_request(&erst_resources, "APEI ERST"); + if (rc) + goto err_fini; + rc = apei_exec_pre_map_gars(&ctx); + if (rc) + goto err_release; + rc = erst_get_erange(&erst_erange); + if (rc) { + if (rc == -ENODEV) + pr_info(ERST_PFX + "The corresponding hardware device or firmware implementation " + "is not available.\n"); + else + pr_err(ERST_PFX + "Failed to get Error Log Address Range.\n"); + goto err_unmap_reg; + } + + r = request_mem_region(erst_erange.base, erst_erange.size, "APEI ERST"); + if (!r) { + pr_err(ERST_PFX + "Can not request iomem region <0x%16llx-0x%16llx> for ERST.\n", + (unsigned long long)erst_erange.base, + (unsigned long long)erst_erange.base + erst_erange.size); + rc = -EIO; + goto err_unmap_reg; + } + rc = -ENOMEM; + erst_erange.vaddr = ioremap_cache(erst_erange.base, + erst_erange.size); + if (!erst_erange.vaddr) + goto err_release_erange; + + pr_info(ERST_PFX + "Error Record Serialization Table (ERST) support is initialized.\n"); + + return 0; + +err_release_erange: + release_mem_region(erst_erange.base, erst_erange.size); +err_unmap_reg: + apei_exec_post_unmap_gars(&ctx); +err_release: + apei_resources_release(&erst_resources); +err_fini: + apei_resources_fini(&erst_resources); +err: + erst_disable = 1; + return rc; +} + +device_initcall(erst_init); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c new file mode 100644 index 000000000000..fd0cc016a099 --- /dev/null +++ b/drivers/acpi/apei/ghes.c @@ -0,0 +1,427 @@ +/* + * APEI Generic Hardware Error Source support + * + * Generic Hardware Error Source provides a way to report platform + * hardware errors (such as that from chipset). It works in so called + * "Firmware First" mode, that is, hardware errors are reported to + * firmware firstly, then reported to Linux by firmware. This way, + * some non-standard hardware error registers or non-standard hardware + * link can be checked by firmware to produce more hardware error + * information for Linux. + * + * For more information about Generic Hardware Error Source, please + * refer to ACPI Specification version 4.0, section 17.3.2.6 + * + * Now, only SCI notification type and memory errors are + * supported. More notification type and hardware error type will be + * added later. + * + * Copyright 2010 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/io.h> +#include <linux/interrupt.h> +#include <linux/cper.h> +#include <linux/kdebug.h> +#include <acpi/apei.h> +#include <acpi/atomicio.h> +#include <acpi/hed.h> +#include <asm/mce.h> + +#include "apei-internal.h" + +#define GHES_PFX "GHES: " + +#define GHES_ESTATUS_MAX_SIZE 65536 + +/* + * One struct ghes is created for each generic hardware error + * source. + * + * It provides the context for APEI hardware error timer/IRQ/SCI/NMI + * handler. Handler for one generic hardware error source is only + * triggered after the previous one is done. So handler can uses + * struct ghes without locking. + * + * estatus: memory buffer for error status block, allocated during + * HEST parsing. + */ +#define GHES_TO_CLEAR 0x0001 + +struct ghes { + struct acpi_hest_generic *generic; + struct acpi_hest_generic_status *estatus; + struct list_head list; + u64 buffer_paddr; + unsigned long flags; +}; + +/* + * Error source lists, one list for each notification method. The + * members in lists are struct ghes. + * + * The list members are only added in HEST parsing and deleted during + * module_exit, that is, single-threaded. So no lock is needed for + * that. + * + * But the mutual exclusion is needed between members adding/deleting + * and timer/IRQ/SCI/NMI handler, which may traverse the list. RCU is + * used for that. + */ +static LIST_HEAD(ghes_sci); + +static struct ghes *ghes_new(struct acpi_hest_generic *generic) +{ + struct ghes *ghes; + unsigned int error_block_length; + int rc; + + ghes = kzalloc(sizeof(*ghes), GFP_KERNEL); + if (!ghes) + return ERR_PTR(-ENOMEM); + ghes->generic = generic; + INIT_LIST_HEAD(&ghes->list); + rc = acpi_pre_map_gar(&generic->error_status_address); + if (rc) + goto err_free; + error_block_length = generic->error_block_length; + if (error_block_length > GHES_ESTATUS_MAX_SIZE) { + pr_warning(FW_WARN GHES_PFX + "Error status block length is too long: %u for " + "generic hardware error source: %d.\n", + error_block_length, generic->header.source_id); + error_block_length = GHES_ESTATUS_MAX_SIZE; + } + ghes->estatus = kmalloc(error_block_length, GFP_KERNEL); + if (!ghes->estatus) { + rc = -ENOMEM; + goto err_unmap; + } + + return ghes; + +err_unmap: + acpi_post_unmap_gar(&generic->error_status_address); +err_free: + kfree(ghes); + return ERR_PTR(rc); +} + +static void ghes_fini(struct ghes *ghes) +{ + kfree(ghes->estatus); + acpi_post_unmap_gar(&ghes->generic->error_status_address); +} + +enum { + GHES_SER_NO = 0x0, + GHES_SER_CORRECTED = 0x1, + GHES_SER_RECOVERABLE = 0x2, + GHES_SER_PANIC = 0x3, +}; + +static inline int ghes_severity(int severity) +{ + switch (severity) { + case CPER_SER_INFORMATIONAL: + return GHES_SER_NO; + case CPER_SER_CORRECTED: + return GHES_SER_CORRECTED; + case CPER_SER_RECOVERABLE: + return GHES_SER_RECOVERABLE; + case CPER_SER_FATAL: + return GHES_SER_PANIC; + default: + /* Unkown, go panic */ + return GHES_SER_PANIC; + } +} + +/* SCI handler run in work queue, so ioremap can be used here */ +static int ghes_copy_tofrom_phys(void *buffer, u64 paddr, u32 len, + int from_phys) +{ + void *vaddr; + + vaddr = ioremap_cache(paddr, len); + if (!vaddr) + return -ENOMEM; + if (from_phys) + memcpy(buffer, vaddr, len); + else + memcpy(vaddr, buffer, len); + iounmap(vaddr); + + return 0; +} + +static int ghes_read_estatus(struct ghes *ghes, int silent) +{ + struct acpi_hest_generic *g = ghes->generic; + u64 buf_paddr; + u32 len; + int rc; + + rc = acpi_atomic_read(&buf_paddr, &g->error_status_address); + if (rc) { + if (!silent && printk_ratelimit()) + pr_warning(FW_WARN GHES_PFX +"Failed to read error status block address for hardware error source: %d.\n", + g->header.source_id); + return -EIO; + } + if (!buf_paddr) + return -ENOENT; + + rc = ghes_copy_tofrom_phys(ghes->estatus, buf_paddr, + sizeof(*ghes->estatus), 1); + if (rc) + return rc; + if (!ghes->estatus->block_status) + return -ENOENT; + + ghes->buffer_paddr = buf_paddr; + ghes->flags |= GHES_TO_CLEAR; + + rc = -EIO; + len = apei_estatus_len(ghes->estatus); + if (len < sizeof(*ghes->estatus)) + goto err_read_block; + if (len > ghes->generic->error_block_length) + goto err_read_block; + if (apei_estatus_check_header(ghes->estatus)) + goto err_read_block; + rc = ghes_copy_tofrom_phys(ghes->estatus + 1, + buf_paddr + sizeof(*ghes->estatus), + len - sizeof(*ghes->estatus), 1); + if (rc) + return rc; + if (apei_estatus_check(ghes->estatus)) + goto err_read_block; + rc = 0; + +err_read_block: + if (rc && !silent) + pr_warning(FW_WARN GHES_PFX + "Failed to read error status block!\n"); + return rc; +} + +static void ghes_clear_estatus(struct ghes *ghes) +{ + ghes->estatus->block_status = 0; + if (!(ghes->flags & GHES_TO_CLEAR)) + return; + ghes_copy_tofrom_phys(ghes->estatus, ghes->buffer_paddr, + sizeof(ghes->estatus->block_status), 0); + ghes->flags &= ~GHES_TO_CLEAR; +} + +static void ghes_do_proc(struct ghes *ghes) +{ + int ser, processed = 0; + struct acpi_hest_generic_data *gdata; + + ser = ghes_severity(ghes->estatus->error_severity); + apei_estatus_for_each_section(ghes->estatus, gdata) { +#ifdef CONFIG_X86_MCE + if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + CPER_SEC_PLATFORM_MEM)) { + apei_mce_report_mem_error( + ser == GHES_SER_CORRECTED, + (struct cper_sec_mem_err *)(gdata+1)); + processed = 1; + } +#endif + } + + if (!processed && printk_ratelimit()) + pr_warning(GHES_PFX + "Unknown error record from generic hardware error source: %d\n", + ghes->generic->header.source_id); +} + +static int ghes_proc(struct ghes *ghes) +{ + int rc; + + rc = ghes_read_estatus(ghes, 0); + if (rc) + goto out; + ghes_do_proc(ghes); + +out: + ghes_clear_estatus(ghes); + return 0; +} + +static int ghes_notify_sci(struct notifier_block *this, + unsigned long event, void *data) +{ + struct ghes *ghes; + int ret = NOTIFY_DONE; + + rcu_read_lock(); + list_for_each_entry_rcu(ghes, &ghes_sci, list) { + if (!ghes_proc(ghes)) + ret = NOTIFY_OK; + } + rcu_read_unlock(); + + return ret; +} + +static struct notifier_block ghes_notifier_sci = { + .notifier_call = ghes_notify_sci, +}; + +static int hest_ghes_parse(struct acpi_hest_header *hest_hdr, void *data) +{ + struct acpi_hest_generic *generic; + struct ghes *ghes = NULL; + int rc = 0; + + if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR) + return 0; + + generic = (struct acpi_hest_generic *)hest_hdr; + if (!generic->enabled) + return 0; + + if (generic->error_block_length < + sizeof(struct acpi_hest_generic_status)) { + pr_warning(FW_BUG GHES_PFX +"Invalid error block length: %u for generic hardware error source: %d\n", + generic->error_block_length, + generic->header.source_id); + goto err; + } + if (generic->records_to_preallocate == 0) { + pr_warning(FW_BUG GHES_PFX +"Invalid records to preallocate: %u for generic hardware error source: %d\n", + generic->records_to_preallocate, + generic->header.source_id); + goto err; + } + ghes = ghes_new(generic); + if (IS_ERR(ghes)) { + rc = PTR_ERR(ghes); + ghes = NULL; + goto err; + } + switch (generic->notify.type) { + case ACPI_HEST_NOTIFY_POLLED: + pr_warning(GHES_PFX +"Generic hardware error source: %d notified via POLL is not supported!\n", + generic->header.source_id); + break; + case ACPI_HEST_NOTIFY_EXTERNAL: + case ACPI_HEST_NOTIFY_LOCAL: + pr_warning(GHES_PFX +"Generic hardware error source: %d notified via IRQ is not supported!\n", + generic->header.source_id); + break; + case ACPI_HEST_NOTIFY_SCI: + if (list_empty(&ghes_sci)) + register_acpi_hed_notifier(&ghes_notifier_sci); + list_add_rcu(&ghes->list, &ghes_sci); + break; + case ACPI_HEST_NOTIFY_NMI: + pr_warning(GHES_PFX +"Generic hardware error source: %d notified via NMI is not supported!\n", + generic->header.source_id); + break; + default: + pr_warning(FW_WARN GHES_PFX + "Unknown notification type: %u for generic hardware error source: %d\n", + generic->notify.type, generic->header.source_id); + break; + } + + return 0; +err: + if (ghes) + ghes_fini(ghes); + return rc; +} + +static void ghes_cleanup(void) +{ + struct ghes *ghes, *nghes; + + if (!list_empty(&ghes_sci)) + unregister_acpi_hed_notifier(&ghes_notifier_sci); + + synchronize_rcu(); + + list_for_each_entry_safe(ghes, nghes, &ghes_sci, list) { + list_del(&ghes->list); + ghes_fini(ghes); + kfree(ghes); + } +} + +static int __init ghes_init(void) +{ + int rc; + + if (acpi_disabled) + return -ENODEV; + + if (hest_disable) { + pr_info(GHES_PFX "HEST is not enabled!\n"); + return -EINVAL; + } + + rc = apei_hest_parse(hest_ghes_parse, NULL); + if (rc) { + pr_err(GHES_PFX + "Error during parsing HEST generic hardware error sources.\n"); + goto err_cleanup; + } + + if (list_empty(&ghes_sci)) { + pr_info(GHES_PFX + "No functional generic hardware error sources.\n"); + rc = -ENODEV; + goto err_cleanup; + } + + pr_info(GHES_PFX + "Generic Hardware Error Source support is initialized.\n"); + + return 0; +err_cleanup: + ghes_cleanup(); + return rc; +} + +static void __exit ghes_exit(void) +{ + ghes_cleanup(); +} + +module_init(ghes_init); +module_exit(ghes_exit); + +MODULE_AUTHOR("Huang Ying"); +MODULE_DESCRIPTION("APEI Generic Hardware Error Source support"); +MODULE_LICENSE("GPL"); diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c new file mode 100644 index 000000000000..e7f40d362cb3 --- /dev/null +++ b/drivers/acpi/apei/hest.c @@ -0,0 +1,173 @@ +/* + * APEI Hardware Error Souce Table support + * + * HEST describes error sources in detail; communicates operational + * parameters (i.e. severity levels, masking bits, and threshold + * values) to Linux as necessary. It also allows the BIOS to report + * non-standard error sources to Linux (for example, chipset-specific + * error registers). + * + * For more information about HEST, please refer to ACPI Specification + * version 4.0, section 17.3.2. + * + * Copyright 2009 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/kdebug.h> +#include <linux/highmem.h> +#include <linux/io.h> +#include <acpi/apei.h> + +#include "apei-internal.h" + +#define HEST_PFX "HEST: " + +int hest_disable; +EXPORT_SYMBOL_GPL(hest_disable); + +/* HEST table parsing */ + +static struct acpi_table_hest *hest_tab; + +static int hest_void_parse(struct acpi_hest_header *hest_hdr, void *data) +{ + return 0; +} + +static int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = { + [ACPI_HEST_TYPE_IA32_CHECK] = -1, /* need further calculation */ + [ACPI_HEST_TYPE_IA32_CORRECTED_CHECK] = -1, + [ACPI_HEST_TYPE_IA32_NMI] = sizeof(struct acpi_hest_ia_nmi), + [ACPI_HEST_TYPE_AER_ROOT_PORT] = sizeof(struct acpi_hest_aer_root), + [ACPI_HEST_TYPE_AER_ENDPOINT] = sizeof(struct acpi_hest_aer), + [ACPI_HEST_TYPE_AER_BRIDGE] = sizeof(struct acpi_hest_aer_bridge), + [ACPI_HEST_TYPE_GENERIC_ERROR] = sizeof(struct acpi_hest_generic), +}; + +static int hest_esrc_len(struct acpi_hest_header *hest_hdr) +{ + u16 hest_type = hest_hdr->type; + int len; + + if (hest_type >= ACPI_HEST_TYPE_RESERVED) + return 0; + + len = hest_esrc_len_tab[hest_type]; + + if (hest_type == ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) { + struct acpi_hest_ia_corrected *cmc; + cmc = (struct acpi_hest_ia_corrected *)hest_hdr; + len = sizeof(*cmc) + cmc->num_hardware_banks * + sizeof(struct acpi_hest_ia_error_bank); + } else if (hest_type == ACPI_HEST_TYPE_IA32_CHECK) { + struct acpi_hest_ia_machine_check *mc; + mc = (struct acpi_hest_ia_machine_check *)hest_hdr; + len = sizeof(*mc) + mc->num_hardware_banks * + sizeof(struct acpi_hest_ia_error_bank); + } + BUG_ON(len == -1); + + return len; +}; + +int apei_hest_parse(apei_hest_func_t func, void *data) +{ + struct acpi_hest_header *hest_hdr; + int i, rc, len; + + if (hest_disable) + return -EINVAL; + + hest_hdr = (struct acpi_hest_header *)(hest_tab + 1); + for (i = 0; i < hest_tab->error_source_count; i++) { + len = hest_esrc_len(hest_hdr); + if (!len) { + pr_warning(FW_WARN HEST_PFX + "Unknown or unused hardware error source " + "type: %d for hardware error source: %d.\n", + hest_hdr->type, hest_hdr->source_id); + return -EINVAL; + } + if ((void *)hest_hdr + len > + (void *)hest_tab + hest_tab->header.length) { + pr_warning(FW_BUG HEST_PFX + "Table contents overflow for hardware error source: %d.\n", + hest_hdr->source_id); + return -EINVAL; + } + + rc = func(hest_hdr, data); + if (rc) + return rc; + + hest_hdr = (void *)hest_hdr + len; + } + + return 0; +} +EXPORT_SYMBOL_GPL(apei_hest_parse); + +static int __init setup_hest_disable(char *str) +{ + hest_disable = 1; + return 0; +} + +__setup("hest_disable", setup_hest_disable); + +static int __init hest_init(void) +{ + acpi_status status; + int rc = -ENODEV; + + if (acpi_disabled) + goto err; + + if (hest_disable) { + pr_info(HEST_PFX "HEST tabling parsing is disabled.\n"); + goto err; + } + + status = acpi_get_table(ACPI_SIG_HEST, 0, + (struct acpi_table_header **)&hest_tab); + if (status == AE_NOT_FOUND) { + pr_info(HEST_PFX "Table is not found!\n"); + goto err; + } else if (ACPI_FAILURE(status)) { + const char *msg = acpi_format_exception(status); + pr_err(HEST_PFX "Failed to get table, %s\n", msg); + rc = -EINVAL; + goto err; + } + + rc = apei_hest_parse(hest_void_parse, NULL); + if (rc) + goto err; + + pr_info(HEST_PFX "HEST table parsing is initialized.\n"); + + return 0; +err: + hest_disable = 1; + return rc; +} + +subsys_initcall(hest_init); diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c new file mode 100644 index 000000000000..8f8bd736d4ff --- /dev/null +++ b/drivers/acpi/atomicio.c @@ -0,0 +1,361 @@ +/* + * atomicio.c - ACPI IO memory pre-mapping/post-unmapping, then + * accessing in atomic context. + * + * This is used for NMI handler to access IO memory area, because + * ioremap/iounmap can not be used in NMI handler. The IO memory area + * is pre-mapped in process context and accessed in NMI handler. + * + * Copyright (C) 2009-2010, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/io.h> +#include <linux/kref.h> +#include <linux/rculist.h> +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <acpi/atomicio.h> + +#define ACPI_PFX "ACPI: " + +static LIST_HEAD(acpi_iomaps); +/* + * Used for mutual exclusion between writers of acpi_iomaps list, for + * synchronization between readers and writer, RCU is used. + */ +static DEFINE_SPINLOCK(acpi_iomaps_lock); + +struct acpi_iomap { + struct list_head list; + void __iomem *vaddr; + unsigned long size; + phys_addr_t paddr; + struct kref ref; +}; + +/* acpi_iomaps_lock or RCU read lock must be held before calling */ +static struct acpi_iomap *__acpi_find_iomap(phys_addr_t paddr, + unsigned long size) +{ + struct acpi_iomap *map; + + list_for_each_entry_rcu(map, &acpi_iomaps, list) { + if (map->paddr + map->size >= paddr + size && + map->paddr <= paddr) + return map; + } + return NULL; +} + +/* + * Atomic "ioremap" used by NMI handler, if the specified IO memory + * area is not pre-mapped, NULL will be returned. + * + * acpi_iomaps_lock or RCU read lock must be held before calling + */ +static void __iomem *__acpi_ioremap_fast(phys_addr_t paddr, + unsigned long size) +{ + struct acpi_iomap *map; + + map = __acpi_find_iomap(paddr, size); + if (map) + return map->vaddr + (paddr - map->paddr); + else + return NULL; +} + +/* acpi_iomaps_lock must be held before calling */ +static void __iomem *__acpi_try_ioremap(phys_addr_t paddr, + unsigned long size) +{ + struct acpi_iomap *map; + + map = __acpi_find_iomap(paddr, size); + if (map) { + kref_get(&map->ref); + return map->vaddr + (paddr - map->paddr); + } else + return NULL; +} + +/* + * Used to pre-map the specified IO memory area. First try to find + * whether the area is already pre-mapped, if it is, increase the + * reference count (in __acpi_try_ioremap) and return; otherwise, do + * the real ioremap, and add the mapping into acpi_iomaps list. + */ +static void __iomem *acpi_pre_map(phys_addr_t paddr, + unsigned long size) +{ + void __iomem *vaddr; + struct acpi_iomap *map; + unsigned long pg_sz, flags; + phys_addr_t pg_off; + + spin_lock_irqsave(&acpi_iomaps_lock, flags); + vaddr = __acpi_try_ioremap(paddr, size); + spin_unlock_irqrestore(&acpi_iomaps_lock, flags); + if (vaddr) + return vaddr; + + pg_off = paddr & PAGE_MASK; + pg_sz = ((paddr + size + PAGE_SIZE - 1) & PAGE_MASK) - pg_off; + vaddr = ioremap(pg_off, pg_sz); + if (!vaddr) + return NULL; + map = kmalloc(sizeof(*map), GFP_KERNEL); + if (!map) + goto err_unmap; + INIT_LIST_HEAD(&map->list); + map->paddr = pg_off; + map->size = pg_sz; + map->vaddr = vaddr; + kref_init(&map->ref); + + spin_lock_irqsave(&acpi_iomaps_lock, flags); + vaddr = __acpi_try_ioremap(paddr, size); + if (vaddr) { + spin_unlock_irqrestore(&acpi_iomaps_lock, flags); + iounmap(map->vaddr); + kfree(map); + return vaddr; + } + list_add_tail_rcu(&map->list, &acpi_iomaps); + spin_unlock_irqrestore(&acpi_iomaps_lock, flags); + + return vaddr + (paddr - pg_off); +err_unmap: + iounmap(vaddr); + return NULL; +} + +/* acpi_iomaps_lock must be held before calling */ +static void __acpi_kref_del_iomap(struct kref *ref) +{ + struct acpi_iomap *map; + + map = container_of(ref, struct acpi_iomap, ref); + list_del_rcu(&map->list); +} + +/* + * Used to post-unmap the specified IO memory area. The iounmap is + * done only if the reference count goes zero. + */ +static void acpi_post_unmap(phys_addr_t paddr, unsigned long size) +{ + struct acpi_iomap *map; + unsigned long flags; + int del; + + spin_lock_irqsave(&acpi_iomaps_lock, flags); + map = __acpi_find_iomap(paddr, size); + BUG_ON(!map); + del = kref_put(&map->ref, __acpi_kref_del_iomap); + spin_unlock_irqrestore(&acpi_iomaps_lock, flags); + + if (!del) + return; + + synchronize_rcu(); + iounmap(map->vaddr); + kfree(map); +} + +/* In NMI handler, should set silent = 1 */ +static int acpi_check_gar(struct acpi_generic_address *reg, + u64 *paddr, int silent) +{ + u32 width, space_id; + + width = reg->bit_width; + space_id = reg->space_id; + /* Handle possible alignment issues */ + memcpy(paddr, ®->address, sizeof(*paddr)); + if (!*paddr) { + if (!silent) + pr_warning(FW_BUG ACPI_PFX + "Invalid physical address in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + if ((width != 8) && (width != 16) && (width != 32) && (width != 64)) { + if (!silent) + pr_warning(FW_BUG ACPI_PFX + "Invalid bit width in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + if (space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY && + space_id != ACPI_ADR_SPACE_SYSTEM_IO) { + if (!silent) + pr_warning(FW_BUG ACPI_PFX + "Invalid address space type in GAR [0x%llx/%u/%u]\n", + *paddr, width, space_id); + return -EINVAL; + } + + return 0; +} + +/* Pre-map, working on GAR */ +int acpi_pre_map_gar(struct acpi_generic_address *reg) +{ + u64 paddr; + void __iomem *vaddr; + int rc; + + if (reg->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) + return 0; + + rc = acpi_check_gar(reg, &paddr, 0); + if (rc) + return rc; + + vaddr = acpi_pre_map(paddr, reg->bit_width / 8); + if (!vaddr) + return -EIO; + + return 0; +} +EXPORT_SYMBOL_GPL(acpi_pre_map_gar); + +/* Post-unmap, working on GAR */ +int acpi_post_unmap_gar(struct acpi_generic_address *reg) +{ + u64 paddr; + int rc; + + if (reg->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) + return 0; + + rc = acpi_check_gar(reg, &paddr, 0); + if (rc) + return rc; + + acpi_post_unmap(paddr, reg->bit_width / 8); + + return 0; +} +EXPORT_SYMBOL_GPL(acpi_post_unmap_gar); + +/* + * Can be used in atomic (including NMI) or process context. RCU read + * lock can only be released after the IO memory area accessing. + */ +static int acpi_atomic_read_mem(u64 paddr, u64 *val, u32 width) +{ + void __iomem *addr; + + rcu_read_lock(); + addr = __acpi_ioremap_fast(paddr, width); + switch (width) { + case 8: + *val = readb(addr); + break; + case 16: + *val = readw(addr); + break; + case 32: + *val = readl(addr); + break; + case 64: + *val = readq(addr); + break; + default: + return -EINVAL; + } + rcu_read_unlock(); + + return 0; +} + +static int acpi_atomic_write_mem(u64 paddr, u64 val, u32 width) +{ + void __iomem *addr; + + rcu_read_lock(); + addr = __acpi_ioremap_fast(paddr, width); + switch (width) { + case 8: + writeb(val, addr); + break; + case 16: + writew(val, addr); + break; + case 32: + writel(val, addr); + break; + case 64: + writeq(val, addr); + break; + default: + return -EINVAL; + } + rcu_read_unlock(); + + return 0; +} + +/* GAR accessing in atomic (including NMI) or process context */ +int acpi_atomic_read(u64 *val, struct acpi_generic_address *reg) +{ + u64 paddr; + int rc; + + rc = acpi_check_gar(reg, &paddr, 1); + if (rc) + return rc; + + *val = 0; + switch (reg->space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + return acpi_atomic_read_mem(paddr, val, reg->bit_width); + case ACPI_ADR_SPACE_SYSTEM_IO: + return acpi_os_read_port(paddr, (u32 *)val, reg->bit_width); + default: + return -EINVAL; + } +} +EXPORT_SYMBOL_GPL(acpi_atomic_read); + +int acpi_atomic_write(u64 val, struct acpi_generic_address *reg) +{ + u64 paddr; + int rc; + + rc = acpi_check_gar(reg, &paddr, 1); + if (rc) + return rc; + + switch (reg->space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + return acpi_atomic_write_mem(paddr, val, reg->bit_width); + case ACPI_ADR_SPACE_SYSTEM_IO: + return acpi_os_write_port(paddr, val, reg->bit_width); + default: + return -EINVAL; + } +} +EXPORT_SYMBOL_GPL(acpi_atomic_write); diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index cada73ffdfa7..dc58402b0a17 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -32,6 +32,7 @@ #include <linux/jiffies.h> #include <linux/async.h> #include <linux/dmi.h> +#include <linux/slab.h> #ifdef CONFIG_ACPI_PROCFS_POWER #include <linux/proc_fs.h> @@ -54,6 +55,7 @@ #define ACPI_BATTERY_DEVICE_NAME "Battery" #define ACPI_BATTERY_NOTIFY_STATUS 0x80 #define ACPI_BATTERY_NOTIFY_INFO 0x81 +#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 #define _COMPONENT ACPI_BATTERY_COMPONENT @@ -88,10 +90,15 @@ static const struct acpi_device_id battery_device_ids[] = { MODULE_DEVICE_TABLE(acpi, battery_device_ids); -/* For buggy DSDTs that report negative 16-bit values for either charging - * or discharging current and/or report 0 as 65536 due to bad math. - */ -#define QUIRK_SIGNED16_CURRENT 0x0001 +enum { + ACPI_BATTERY_ALARM_PRESENT, + ACPI_BATTERY_XINFO_PRESENT, + /* For buggy DSDTs that report negative 16-bit values for either + * charging or discharging current and/or report 0 as 65536 + * due to bad math. + */ + ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, +}; struct acpi_battery { struct mutex lock; @@ -109,6 +116,12 @@ struct acpi_battery { int design_voltage; int design_capacity_warning; int design_capacity_low; + int cycle_count; + int measurement_accuracy; + int max_sampling_time; + int min_sampling_time; + int max_averaging_interval; + int min_averaging_interval; int capacity_granularity_1; int capacity_granularity_2; int alarm; @@ -118,8 +131,7 @@ struct acpi_battery { char oem_info[32]; int state; int power_unit; - u8 alarm_present; - long quirks; + unsigned long flags; }; #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); @@ -198,6 +210,9 @@ static int acpi_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = acpi_battery_technology(battery); break; + case POWER_SUPPLY_PROP_CYCLE_COUNT: + val->intval = battery->cycle_count; + break; case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: val->intval = battery->design_voltage * 1000; break; @@ -239,6 +254,7 @@ static enum power_supply_property charge_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CYCLE_COUNT, POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_NOW, @@ -254,6 +270,7 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CYCLE_COUNT, POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_NOW, @@ -305,6 +322,28 @@ static struct acpi_offsets info_offsets[] = { {offsetof(struct acpi_battery, oem_info), 1}, }; +static struct acpi_offsets extended_info_offsets[] = { + {offsetof(struct acpi_battery, power_unit), 0}, + {offsetof(struct acpi_battery, design_capacity), 0}, + {offsetof(struct acpi_battery, full_charge_capacity), 0}, + {offsetof(struct acpi_battery, technology), 0}, + {offsetof(struct acpi_battery, design_voltage), 0}, + {offsetof(struct acpi_battery, design_capacity_warning), 0}, + {offsetof(struct acpi_battery, design_capacity_low), 0}, + {offsetof(struct acpi_battery, cycle_count), 0}, + {offsetof(struct acpi_battery, measurement_accuracy), 0}, + {offsetof(struct acpi_battery, max_sampling_time), 0}, + {offsetof(struct acpi_battery, min_sampling_time), 0}, + {offsetof(struct acpi_battery, max_averaging_interval), 0}, + {offsetof(struct acpi_battery, min_averaging_interval), 0}, + {offsetof(struct acpi_battery, capacity_granularity_1), 0}, + {offsetof(struct acpi_battery, capacity_granularity_2), 0}, + {offsetof(struct acpi_battery, model_number), 1}, + {offsetof(struct acpi_battery, serial_number), 1}, + {offsetof(struct acpi_battery, type), 1}, + {offsetof(struct acpi_battery, oem_info), 1}, +}; + static int extract_package(struct acpi_battery *battery, union acpi_object *package, struct acpi_offsets *offsets, int num) @@ -324,8 +363,8 @@ static int extract_package(struct acpi_battery *battery, strncpy(ptr, element->string.pointer, 32); else if (element->type == ACPI_TYPE_INTEGER) { strncpy(ptr, (u8 *)&element->integer.value, - sizeof(acpi_integer)); - ptr[sizeof(acpi_integer)] = 0; + sizeof(u64)); + ptr[sizeof(u64)] = 0; } else *ptr = 0; /* don't have value */ } else { @@ -350,22 +389,29 @@ static int acpi_battery_get_info(struct acpi_battery *battery) { int result = -EFAULT; acpi_status status = 0; + char *name = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)? + "_BIX" : "_BIF"; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; if (!acpi_battery_present(battery)) return 0; mutex_lock(&battery->lock); - status = acpi_evaluate_object(battery->device->handle, "_BIF", - NULL, &buffer); + status = acpi_evaluate_object(battery->device->handle, name, + NULL, &buffer); mutex_unlock(&battery->lock); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF")); + ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name)); return -ENODEV; } - - result = extract_package(battery, buffer.pointer, - info_offsets, ARRAY_SIZE(info_offsets)); + if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)) + result = extract_package(battery, buffer.pointer, + extended_info_offsets, + ARRAY_SIZE(extended_info_offsets)); + else + result = extract_package(battery, buffer.pointer, + info_offsets, ARRAY_SIZE(info_offsets)); kfree(buffer.pointer); return result; } @@ -399,7 +445,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery) battery->update_time = jiffies; kfree(buffer.pointer); - if ((battery->quirks & QUIRK_SIGNED16_CURRENT) && + if (test_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags) && battery->rate_now != -1) battery->rate_now = abs((s16)battery->rate_now); @@ -412,7 +458,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery) union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER }; struct acpi_object_list arg_list = { 1, &arg0 }; - if (!acpi_battery_present(battery)|| !battery->alarm_present) + if (!acpi_battery_present(battery) || + !test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags)) return -ENODEV; arg0.integer.value = battery->alarm; @@ -437,10 +484,10 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery) /* See if alarms are supported, and if so, set default */ status = acpi_get_handle(battery->device->handle, "_BTP", &handle); if (ACPI_FAILURE(status)) { - battery->alarm_present = 0; + clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags); return 0; } - battery->alarm_present = 1; + set_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags); if (!battery->alarm) battery->alarm = battery->design_capacity_warning; return acpi_battery_set_alarm(battery); @@ -510,9 +557,8 @@ static void sysfs_remove_battery(struct acpi_battery *battery) static void acpi_battery_quirks(struct acpi_battery *battery) { - battery->quirks = 0; if (dmi_name_in_vendors("Acer") && battery->power_unit) { - battery->quirks |= QUIRK_SIGNED16_CURRENT; + set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags); } } @@ -522,13 +568,13 @@ static int acpi_battery_update(struct acpi_battery *battery) result = acpi_battery_get_status(battery); if (result) return result; -#ifdef CONFIG_ACPI_SYSFS_POWER if (!acpi_battery_present(battery)) { +#ifdef CONFIG_ACPI_SYSFS_POWER sysfs_remove_battery(battery); +#endif battery->update_time = 0; return 0; } -#endif if (!battery->update_time || old_present != acpi_battery_present(battery)) { result = acpi_battery_get_info(battery); @@ -590,6 +636,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result) seq_printf(seq, "design capacity low: %d %sh\n", battery->design_capacity_low, acpi_battery_units(battery)); + seq_printf(seq, "cycle count: %i\n", battery->cycle_count); seq_printf(seq, "capacity granularity 1: %d %sh\n", battery->capacity_granularity_1, acpi_battery_units(battery)); @@ -821,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device) static void acpi_battery_notify(struct acpi_device *device, u32 event) { struct acpi_battery *battery = acpi_driver_data(device); +#ifdef CONFIG_ACPI_SYSFS_POWER + struct device *old; +#endif if (!battery) return; +#ifdef CONFIG_ACPI_SYSFS_POWER + old = battery->bat.dev; +#endif acpi_battery_update(battery); acpi_bus_generate_proc_event(device, event, acpi_battery_present(battery)); @@ -832,8 +885,8 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) acpi_battery_present(battery)); #ifdef CONFIG_ACPI_SYSFS_POWER /* acpi_battery_update could remove power_supply object */ - if (battery->bat.dev) - kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE); + if (old && battery->bat.dev) + power_supply_changed(&battery->bat); #endif } @@ -841,6 +894,7 @@ static int acpi_battery_add(struct acpi_device *device) { int result = 0; struct acpi_battery *battery = NULL; + acpi_handle handle; if (!device) return -EINVAL; battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL); @@ -851,6 +905,9 @@ static int acpi_battery_add(struct acpi_device *device) strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS); device->driver_data = battery; mutex_init(&battery->lock); + if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle, + "_BIX", &handle))) + set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags); acpi_battery_update(battery); #ifdef CONFIG_ACPI_PROCFS_POWER result = acpi_battery_add_fs(device); diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 2815df66f6f7..2bb28b9d91c4 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -214,7 +214,15 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { .ident = "Sony VGN-SR290J", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"), + }, + }, + { + .callback = dmi_disable_osi_vista, + .ident = "VGN-NS50B_L", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"), }, }, { diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index a52126e46307..c1d23cd71652 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -32,6 +32,7 @@ #include <linux/device.h> #include <linux/proc_fs.h> #include <linux/acpi.h> +#include <linux/slab.h> #ifdef CONFIG_X86 #include <asm/mpspec.h> #endif @@ -68,6 +69,44 @@ static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = { }; +#ifdef CONFIG_X86 +static int set_copy_dsdt(const struct dmi_system_id *id) +{ + printk(KERN_NOTICE "%s detected - " + "force copy of DSDT to local memory\n", id->ident); + acpi_gbl_copy_dsdt_locally = 1; + return 0; +} + +static struct dmi_system_id dsdt_dmi_table[] __initdata = { + /* + * Insyde BIOS on some TOSHIBA machines corrupt the DSDT. + * https://bugzilla.kernel.org/show_bug.cgi?id=14679 + */ + { + .callback = set_copy_dsdt, + .ident = "TOSHIBA Satellite A505", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A505"), + }, + }, + { + .callback = set_copy_dsdt, + .ident = "TOSHIBA Satellite L505D", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L505D"), + }, + }, + {} +}; +#else +static struct dmi_system_id dsdt_dmi_table[] __initdata = { + {} +}; +#endif + /* -------------------------------------------------------------------------- Device Management -------------------------------------------------------------------------- */ @@ -190,16 +229,16 @@ int acpi_bus_get_power(acpi_handle handle, int *state) * Get the device's power state either directly (via _PSC) or * indirectly (via power resources). */ - if (device->power.flags.explicit_get) { + if (device->power.flags.power_resources) { + result = acpi_power_get_inferred_state(device); + if (result) + return result; + } else if (device->power.flags.explicit_get) { status = acpi_evaluate_integer(device->handle, "_PSC", NULL, &psc); if (ACPI_FAILURE(status)) return -ENODEV; device->power.state = (int)psc; - } else if (device->power.flags.power_resources) { - result = acpi_power_get_inferred_state(device); - if (result) - return result; } *state = device->power.state; @@ -362,11 +401,6 @@ static void acpi_print_osc_error(acpi_handle handle, printk("\n"); } -static u8 hex_val(unsigned char c) -{ - return isdigit(c) ? c - '0' : toupper(c) - 'A' + 10; -} - static acpi_status acpi_str_to_uuid(char *str, u8 *uuid) { int i; @@ -383,8 +417,8 @@ static acpi_status acpi_str_to_uuid(char *str, u8 *uuid) return AE_BAD_PARAMETER; } for (i = 0; i < 16; i++) { - uuid[i] = hex_val(str[opc_map_to_uuid[i]]) << 4; - uuid[i] |= hex_val(str[opc_map_to_uuid[i] + 1]); + uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4; + uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]); } return AE_OK; } @@ -526,7 +560,7 @@ int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, if (!event_is_open) return 0; - event = kmalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC); + event = kzalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC); if (!event) return -ENOMEM; @@ -812,6 +846,12 @@ void __init acpi_early_init(void) acpi_gbl_permanent_mmap = 1; + /* + * If the machine falls into the DMI check table, + * DSDT will be copied to memory + */ + dmi_check_system(dsdt_dmi_table); + status = acpi_reallocate_root_table(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 8a95e8329df7..7d857dabdde4 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -30,6 +30,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/input.h> +#include <linux/slab.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -422,11 +423,10 @@ static int acpi_button_add(struct acpi_device *device) if (device->wakeup.flags.valid) { /* Button's GPE is run-wake GPE */ - acpi_set_gpe_type(device->wakeup.gpe_device, - device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); acpi_enable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number); + device->wakeup.gpe_number, + ACPI_GPE_TYPE_RUNTIME); + device->wakeup.run_wake_count++; device->wakeup.state.enabled = 1; } @@ -446,6 +446,14 @@ static int acpi_button_remove(struct acpi_device *device, int type) { struct acpi_button *button = acpi_driver_data(device); + if (device->wakeup.flags.valid) { + acpi_disable_gpe(device->wakeup.gpe_device, + device->wakeup.gpe_number, + ACPI_GPE_TYPE_RUNTIME); + device->wakeup.run_wake_count--; + device->wakeup.state.enabled = 0; + } + acpi_button_remove_fs(device); input_unregister_device(button->input); kfree(button); diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index 5faf6c21257d..45cd03b4630e 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -29,6 +29,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/types.h> #include <linux/acpi.h> #include <acpi/acpi_bus.h> diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c index cc421b7ae166..146135e7a6a1 100644 --- a/drivers/acpi/debug.c +++ b/drivers/acpi/debug.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/moduleparam.h> #include <linux/debugfs.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <acpi/acpi_drivers.h> diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index b2586f57e1f5..3fe29e992be8 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/types.h> #include <linux/notifier.h> @@ -605,7 +606,7 @@ register_hotplug_dock_device(acpi_handle handle, struct acpi_dock_ops *ops, list_for_each_entry(dock_station, &dock_stations, sibling) { /* * An ATA bay can be in a dock and itself can be ejected - * seperately, so there are two 'dock stations' which need the + * separately, so there are two 'dock stations' which need the * ops */ dd = find_dock_dependent_device(dock_station, handle); @@ -1025,13 +1026,10 @@ static int dock_remove(struct dock_station *ds) static acpi_status find_dock(acpi_handle handle, u32 lvl, void *context, void **rv) { - acpi_status status = AE_OK; - if (is_dock(handle)) - if (dock_add(handle) >= 0) - status = AE_CTRL_TERMINATE; + dock_add(handle); - return status; + return AE_OK; } static acpi_status diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index d6471bb6852f..5f2027d782e8 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -39,6 +39,7 @@ #include <linux/interrupt.h> #include <linux/list.h> #include <linux/spinlock.h> +#include <linux/slab.h> #include <asm/io.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -76,8 +77,9 @@ enum ec_command { enum { EC_FLAGS_QUERY_PENDING, /* Query is pending */ EC_FLAGS_GPE_STORM, /* GPE storm detected */ - EC_FLAGS_HANDLERS_INSTALLED /* Handlers for GPE and + EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and * OpReg are installed */ + EC_FLAGS_BLOCKED, /* Transactions are blocked */ }; /* If we find an EC via the ECDT, we need to keep a ptr to its context */ @@ -291,6 +293,10 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) if (t->rdata) memset(t->rdata, 0, t->rlen); mutex_lock(&ec->lock); + if (test_bit(EC_FLAGS_BLOCKED, &ec->flags)) { + status = -EINVAL; + goto unlock; + } if (ec->global_lock) { status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); if (ACPI_FAILURE(status)) { @@ -307,7 +313,11 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) pr_debug(PREFIX "transaction start\n"); /* disable GPE during transaction if storm is detected */ if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { - acpi_disable_gpe(NULL, ec->gpe); + /* + * It has to be disabled at the hardware level regardless of the + * GPE reference counting, so that it doesn't trigger. + */ + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE); } status = acpi_ec_transaction_unlocked(ec, t); @@ -316,8 +326,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) ec_check_sci_sync(ec, acpi_ec_read_status(ec)); if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { msleep(1); - /* it is safe to enable GPE outside of transaction */ - acpi_enable_gpe(NULL, ec->gpe); + /* + * It is safe to enable the GPE outside of the transaction. Use + * acpi_set_gpe() for that, since we used it to disable the GPE + * above. + */ + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE); } else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) { pr_info(PREFIX "GPE storm detected, " "transactions will use polling mode\n"); @@ -445,6 +459,42 @@ int ec_transaction(u8 command, EXPORT_SYMBOL(ec_transaction); +void acpi_ec_block_transactions(void) +{ + struct acpi_ec *ec = first_ec; + + if (!ec) + return; + + mutex_lock(&ec->lock); + /* Prevent transactions from being carried out */ + set_bit(EC_FLAGS_BLOCKED, &ec->flags); + mutex_unlock(&ec->lock); +} + +void acpi_ec_unblock_transactions(void) +{ + struct acpi_ec *ec = first_ec; + + if (!ec) + return; + + mutex_lock(&ec->lock); + /* Allow transactions to be carried out again */ + clear_bit(EC_FLAGS_BLOCKED, &ec->flags); + mutex_unlock(&ec->lock); +} + +void acpi_ec_unblock_transactions_early(void) +{ + /* + * Allow transactions to happen again (this function is called from + * atomic context during wakeup, so we don't need to acquire the mutex). + */ + if (first_ec) + clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags); +} + static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data) { int result; @@ -589,12 +639,12 @@ static u32 acpi_ec_gpe_handler(void *data) static acpi_status acpi_ec_space_handler(u32 function, acpi_physical_address address, - u32 bits, acpi_integer *value, + u32 bits, u64 *value64, void *handler_context, void *region_context) { struct acpi_ec *ec = handler_context; - int result = 0, i; - u8 temp = 0; + int result = 0, i, bytes = bits / 8; + u8 *value = (u8 *)value64; if ((address > 0xFF) || !value || !handler_context) return AE_BAD_PARAMETER; @@ -602,32 +652,15 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address, if (function != ACPI_READ && function != ACPI_WRITE) return AE_BAD_PARAMETER; - if (bits != 8 && acpi_strict) - return AE_BAD_PARAMETER; - - if (EC_FLAGS_MSI) + if (EC_FLAGS_MSI || bits > 8) acpi_ec_burst_enable(ec); - if (function == ACPI_READ) { - result = acpi_ec_read(ec, address, &temp); - *value = temp; - } else { - temp = 0xff & (*value); - result = acpi_ec_write(ec, address, temp); - } + for (i = 0; i < bytes; ++i, ++address, ++value) + result = (function == ACPI_READ) ? + acpi_ec_read(ec, address, value) : + acpi_ec_write(ec, address, *value); - for (i = 8; unlikely(bits - i > 0); i += 8) { - ++address; - if (function == ACPI_READ) { - result = acpi_ec_read(ec, address, &temp); - (*value) |= ((acpi_integer)temp) << i; - } else { - temp = 0xff & ((*value) >> i); - result = acpi_ec_write(ec, address, temp); - } - } - - if (EC_FLAGS_MSI) + if (EC_FLAGS_MSI || bits > 8) acpi_ec_burst_disable(ec); switch (result) { @@ -788,8 +821,8 @@ static int ec_install_handlers(struct acpi_ec *ec) &acpi_ec_gpe_handler, ec); if (ACPI_FAILURE(status)) return -ENODEV; - acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); - acpi_enable_gpe(NULL, ec->gpe); + + acpi_enable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); status = acpi_install_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, @@ -806,6 +839,7 @@ static int ec_install_handlers(struct acpi_ec *ec) } else { acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); + acpi_disable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); return -ENODEV; } } @@ -816,6 +850,7 @@ static int ec_install_handlers(struct acpi_ec *ec) static void ec_remove_handlers(struct acpi_ec *ec) { + acpi_disable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler))) pr_err(PREFIX "failed to remove space handler\n"); @@ -1002,10 +1037,9 @@ int __init acpi_ec_ecdt_probe(void) /* Don't trust ECDT, which comes from ASUSTek */ if (!EC_FLAGS_VALIDATE_ECDT) goto install; - saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); + saved_ec = kmemdup(boot_ec, sizeof(struct acpi_ec), GFP_KERNEL); if (!saved_ec) return -ENOMEM; - memcpy(saved_ec, boot_ec, sizeof(struct acpi_ec)); /* fall through */ } @@ -1057,16 +1091,16 @@ error: static int acpi_ec_suspend(struct acpi_device *device, pm_message_t state) { struct acpi_ec *ec = acpi_driver_data(device); - /* Stop using GPE */ - acpi_disable_gpe(NULL, ec->gpe); + /* Stop using the GPE, but keep it reference counted. */ + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE); return 0; } static int acpi_ec_resume(struct acpi_device *device) { struct acpi_ec *ec = acpi_driver_data(device); - /* Enable use of GPE back */ - acpi_enable_gpe(NULL, ec->gpe); + /* Enable the GPE again, but don't reference count it once more. */ + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE); return 0; } diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index c511071bfd79..d439314a75d8 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -10,6 +10,7 @@ #include <linux/proc_fs.h> #include <linux/init.h> #include <linux/poll.h> +#include <linux/gfp.h> #include <acpi/acpi_drivers.h> #include <net/netlink.h> #include <net/genetlink.h> diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index acf2ab249842..8a3b840c0bb2 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -347,7 +347,6 @@ static int __init acpi_fan_init(void) { int result = 0; - #ifdef CONFIG_ACPI_PROCFS acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir); if (!acpi_fan_dir) @@ -356,7 +355,9 @@ static int __init acpi_fan_init(void) result = acpi_bus_register_driver(&acpi_fan_driver); if (result < 0) { +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); +#endif return -ENODEV; } diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 4c8fcff662cf..4af6301601e7 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -9,6 +9,7 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/device.h> +#include <linux/slab.h> #include <linux/rwsem.h> #include <linux/acpi.h> @@ -87,7 +88,7 @@ static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle) /* Get device's handler per its address under its parent */ struct acpi_find_child { acpi_handle handle; - acpi_integer address; + u64 address; }; static acpi_status @@ -106,7 +107,7 @@ do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } -acpi_handle acpi_get_child(acpi_handle parent, acpi_integer address) +acpi_handle acpi_get_child(acpi_handle parent, u64 address) { struct acpi_find_child find = { NULL, address }; diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c new file mode 100644 index 000000000000..d0c1967f7597 --- /dev/null +++ b/drivers/acpi/hed.c @@ -0,0 +1,112 @@ +/* + * ACPI Hardware Error Device (PNP0C33) Driver + * + * Copyright (C) 2010, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * ACPI Hardware Error Device is used to report some hardware errors + * notified via SCI, mainly the corrected errors. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> +#include <acpi/hed.h> + +static struct acpi_device_id acpi_hed_ids[] = { + {"PNP0C33", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, acpi_hed_ids); + +static acpi_handle hed_handle; + +static BLOCKING_NOTIFIER_HEAD(acpi_hed_notify_list); + +int register_acpi_hed_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&acpi_hed_notify_list, nb); +} +EXPORT_SYMBOL_GPL(register_acpi_hed_notifier); + +void unregister_acpi_hed_notifier(struct notifier_block *nb) +{ + blocking_notifier_chain_unregister(&acpi_hed_notify_list, nb); +} +EXPORT_SYMBOL_GPL(unregister_acpi_hed_notifier); + +/* + * SCI to report hardware error is forwarded to the listeners of HED, + * it is used by HEST Generic Hardware Error Source with notify type + * SCI. + */ +static void acpi_hed_notify(struct acpi_device *device, u32 event) +{ + blocking_notifier_call_chain(&acpi_hed_notify_list, 0, NULL); +} + +static int __devinit acpi_hed_add(struct acpi_device *device) +{ + /* Only one hardware error device */ + if (hed_handle) + return -EINVAL; + hed_handle = device->handle; + return 0; +} + +static int __devexit acpi_hed_remove(struct acpi_device *device, int type) +{ + hed_handle = NULL; + return 0; +} + +static struct acpi_driver acpi_hed_driver = { + .name = "hardware_error_device", + .class = "hardware_error", + .ids = acpi_hed_ids, + .ops = { + .add = acpi_hed_add, + .remove = acpi_hed_remove, + .notify = acpi_hed_notify, + }, +}; + +static int __init acpi_hed_init(void) +{ + if (acpi_disabled) + return -ENODEV; + + if (acpi_bus_register_driver(&acpi_hed_driver) < 0) + return -ENODEV; + + return 0; +} + +static void __exit acpi_hed_exit(void) +{ + acpi_bus_unregister_driver(&acpi_hed_driver); +} + +module_init(acpi_hed_init); +module_exit(acpi_hed_exit); + +ACPI_MODULE_NAME("hed"); +MODULE_AUTHOR("Huang Ying"); +MODULE_DESCRIPTION("ACPI Hardware Error Device Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/acpi/hest.c b/drivers/acpi/hest.c deleted file mode 100644 index 4bb18c980ac6..000000000000 --- a/drivers/acpi/hest.c +++ /dev/null @@ -1,135 +0,0 @@ -#include <linux/acpi.h> -#include <linux/pci.h> - -#define PREFIX "ACPI: " - -static inline unsigned long parse_acpi_hest_ia_machine_check(struct acpi_hest_ia_machine_check *p) -{ - return sizeof(*p) + - (sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks); -} - -static inline unsigned long parse_acpi_hest_ia_corrected(struct acpi_hest_ia_corrected *p) -{ - return sizeof(*p) + - (sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks); -} - -static inline unsigned long parse_acpi_hest_ia_nmi(struct acpi_hest_ia_nmi *p) -{ - return sizeof(*p); -} - -static inline unsigned long parse_acpi_hest_generic(struct acpi_hest_generic *p) -{ - return sizeof(*p); -} - -static inline unsigned int hest_match_pci(struct acpi_hest_aer_common *p, struct pci_dev *pci) -{ - return (0 == pci_domain_nr(pci->bus) && - p->bus == pci->bus->number && - p->device == PCI_SLOT(pci->devfn) && - p->function == PCI_FUNC(pci->devfn)); -} - -static unsigned long parse_acpi_hest_aer(void *hdr, int type, struct pci_dev *pci, int *firmware_first) -{ - struct acpi_hest_aer_common *p = hdr + sizeof(struct acpi_hest_header); - unsigned long rc=0; - u8 pcie_type = 0; - u8 bridge = 0; - switch (type) { - case ACPI_HEST_TYPE_AER_ROOT_PORT: - rc = sizeof(struct acpi_hest_aer_root); - pcie_type = PCI_EXP_TYPE_ROOT_PORT; - break; - case ACPI_HEST_TYPE_AER_ENDPOINT: - rc = sizeof(struct acpi_hest_aer); - pcie_type = PCI_EXP_TYPE_ENDPOINT; - break; - case ACPI_HEST_TYPE_AER_BRIDGE: - rc = sizeof(struct acpi_hest_aer_bridge); - if ((pci->class >> 16) == PCI_BASE_CLASS_BRIDGE) - bridge = 1; - break; - } - - if (p->flags & ACPI_HEST_GLOBAL) { - if ((pci->is_pcie && (pci->pcie_type == pcie_type)) || bridge) - *firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); - } - else - if (hest_match_pci(p, pci)) - *firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); - return rc; -} - -static int acpi_hest_firmware_first(struct acpi_table_header *stdheader, struct pci_dev *pci) -{ - struct acpi_table_hest *hest = (struct acpi_table_hest *)stdheader; - void *p = (void *)hest + sizeof(*hest); /* defined by the ACPI 4.0 spec */ - struct acpi_hest_header *hdr = p; - - int i; - int firmware_first = 0; - static unsigned char printed_unused = 0; - static unsigned char printed_reserved = 0; - - for (i=0, hdr=p; p < (((void *)hest) + hest->header.length) && i < hest->error_source_count; i++) { - switch (hdr->type) { - case ACPI_HEST_TYPE_IA32_CHECK: - p += parse_acpi_hest_ia_machine_check(p); - break; - case ACPI_HEST_TYPE_IA32_CORRECTED_CHECK: - p += parse_acpi_hest_ia_corrected(p); - break; - case ACPI_HEST_TYPE_IA32_NMI: - p += parse_acpi_hest_ia_nmi(p); - break; - /* These three should never appear */ - case ACPI_HEST_TYPE_NOT_USED3: - case ACPI_HEST_TYPE_NOT_USED4: - case ACPI_HEST_TYPE_NOT_USED5: - if (!printed_unused) { - printk(KERN_DEBUG PREFIX - "HEST Error Source list contains an obsolete type (%d).\n", hdr->type); - printed_unused = 1; - } - break; - case ACPI_HEST_TYPE_AER_ROOT_PORT: - case ACPI_HEST_TYPE_AER_ENDPOINT: - case ACPI_HEST_TYPE_AER_BRIDGE: - p += parse_acpi_hest_aer(p, hdr->type, pci, &firmware_first); - break; - case ACPI_HEST_TYPE_GENERIC_ERROR: - p += parse_acpi_hest_generic(p); - break; - /* These should never appear either */ - case ACPI_HEST_TYPE_RESERVED: - default: - if (!printed_reserved) { - printk(KERN_DEBUG PREFIX - "HEST Error Source list contains a reserved type (%d).\n", hdr->type); - printed_reserved = 1; - } - break; - } - } - return firmware_first; -} - -int acpi_hest_firmware_first_pci(struct pci_dev *pci) -{ - acpi_status status = AE_NOT_FOUND; - struct acpi_table_header *hest = NULL; - status = acpi_get_table(ACPI_SIG_HEST, 1, &hest); - - if (ACPI_SUCCESS(status)) { - if (acpi_hest_firmware_first(hest, pci)) { - return 1; - } - } - return 0; -} -EXPORT_SYMBOL_GPL(acpi_hest_firmware_first_pci); diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index cb28e0502acc..f8f190ec066e 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -36,8 +36,6 @@ static inline int acpi_debug_init(void) { return 0; } int acpi_power_init(void); int acpi_device_sleep_wake(struct acpi_device *dev, int enable, int sleep_state, int dev_state); -int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state); -int acpi_disable_wakeup_device_power(struct acpi_device *dev); int acpi_power_get_inferred_state(struct acpi_device *device); int acpi_power_transition(struct acpi_device *device, int state); extern int acpi_power_nocheck; @@ -51,6 +49,9 @@ void acpi_early_processor_set_pdc(void); int acpi_ec_init(void); int acpi_ec_ecdt_probe(void); int acpi_boot_ec_enable(void); +void acpi_ec_block_transactions(void); +void acpi_ec_unblock_transactions(void); +void acpi_ec_unblock_transactions_early(void); /*-------------------------------------------------------------------------- Suspend/Resume diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 7ad48dfc12db..b0337d314604 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -61,8 +61,10 @@ int node_to_pxm(int node) void __acpi_map_pxm_to_node(int pxm, int node) { - pxm_to_node_map[pxm] = node; - node_to_pxm_map[node] = pxm; + if (pxm_to_node_map[pxm] == NUMA_NO_NODE || node < pxm_to_node_map[pxm]) + pxm_to_node_map[pxm] = node; + if (node_to_pxm_map[node] == PXM_INVAL || pxm < node_to_pxm_map[node]) + node_to_pxm_map[node] = pxm; } int acpi_map_pxm_to_node(int pxm) @@ -279,9 +281,9 @@ int __init acpi_numa_init(void) /* SRAT: Static Resource Affinity Table */ if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) { acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY, - acpi_parse_x2apic_affinity, NR_CPUS); + acpi_parse_x2apic_affinity, nr_cpu_ids); acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, - acpi_parse_processor_affinity, NR_CPUS); + acpi_parse_processor_affinity, nr_cpu_ids); ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 02e8464e480f..78418ce4fc78 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -436,7 +436,7 @@ acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler) * Running in interpreter thread context, safe to sleep */ -void acpi_os_sleep(acpi_integer ms) +void acpi_os_sleep(u64 ms) { schedule_timeout_interruptible(msecs_to_jiffies(ms)); } @@ -603,7 +603,7 @@ acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, acpi_status acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, - acpi_integer value, u32 width) + u64 value, u32 width) { int result, size; @@ -758,7 +758,14 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, queue = hp ? kacpi_hotplug_wq : (type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq); dpc->wait = hp ? 1 : 0; - INIT_WORK(&dpc->work, acpi_os_execute_deferred); + + if (queue == kacpi_hotplug_wq) + INIT_WORK(&dpc->work, acpi_os_execute_deferred); + else if (queue == kacpi_notify_wq) + INIT_WORK(&dpc->work, acpi_os_execute_deferred); + else + INIT_WORK(&dpc->work, acpi_os_execute_deferred); + ret = queue_work(queue, &dpc->work); if (!ret) { @@ -1151,16 +1158,10 @@ int acpi_check_resource_conflict(const struct resource *res) if (clash) { if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) { - printk("%sACPI: %s resource %s [0x%llx-0x%llx]" - " conflicts with ACPI region %s" - " [0x%llx-0x%llx]\n", - acpi_enforce_resources == ENFORCE_RESOURCES_LAX - ? KERN_WARNING : KERN_ERR, - ioport ? "I/O" : "Memory", res->name, - (long long) res->start, (long long) res->end, - res_list_elem->name, - (long long) res_list_elem->start, - (long long) res_list_elem->end); + printk(KERN_WARNING "ACPI: resource %s %pR" + " conflicts with ACPI region %s %pR\n", + res->name, res, res_list_elem->name, + res_list_elem); if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX) printk(KERN_NOTICE "ACPI: This conflict may" " cause random problems and system" @@ -1206,6 +1207,15 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n, EXPORT_SYMBOL(acpi_check_mem_region); /* + * Let drivers know whether the resource checks are effective + */ +int acpi_resources_are_enforced(void) +{ + return acpi_enforce_resources == ENFORCE_RESOURCES_STRICT; +} +EXPORT_SYMBOL(acpi_resources_are_enforced); + +/* * Acquire a spinlock. * * handle is a pointer to the spinlock_t. @@ -1405,7 +1415,7 @@ acpi_os_invalidate_address( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res.start = address; res.end = address + length - 1; @@ -1457,7 +1467,7 @@ acpi_os_validate_address ( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res = kzalloc(sizeof(struct acpi_res_list), GFP_KERNEL); if (!res) diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c index a5a77b78a723..2ef04098cc1d 100644 --- a/drivers/acpi/pci_bind.c +++ b/drivers/acpi/pci_bind.c @@ -26,7 +26,9 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/pci.h> +#include <linux/pci-acpi.h> #include <linux/acpi.h> +#include <linux/pm_runtime.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -38,7 +40,13 @@ static int acpi_pci_unbind(struct acpi_device *device) struct pci_dev *dev; dev = acpi_get_pci_dev(device->handle); - if (!dev || !dev->subordinate) + if (!dev) + goto out; + + device_set_run_wake(&dev->dev, false); + pci_acpi_remove_pm_notifier(device); + + if (!dev->subordinate) goto out; acpi_pci_irq_del_prt(dev->subordinate); @@ -62,6 +70,10 @@ static int acpi_pci_bind(struct acpi_device *device) if (!dev) return 0; + pci_acpi_add_pm_notifier(device, dev); + if (device->wakeup.flags.run_wake) + device_set_run_wake(&dev->dev, true); + /* * Install the 'bind' function to facilitate callbacks for * children of the P2P bridge. diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 843699ed93f2..e4804fb05e23 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -37,6 +37,7 @@ #include <linux/pm.h> #include <linux/pci.h> #include <linux/acpi.h> +#include <linux/slab.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -400,11 +401,13 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * driver reported one, then use it. Exit in any case. */ if (gsi < 0) { + u32 dev_gsi; dev_warn(&dev->dev, "PCI INT %c: no GSI", pin_name(pin)); /* Interrupt Line values above 0xF are forbidden */ - if (dev->irq > 0 && (dev->irq <= 0xF)) { - printk(" - using IRQ %d\n", dev->irq); - acpi_register_gsi(&dev->dev, dev->irq, + if (dev->irq > 0 && (dev->irq <= 0xF) && + (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { + printk(" - using ISA IRQ %d\n", dev->irq); + acpi_register_gsi(&dev->dev, dev_gsi, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW); return 0; diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 04b0f007c9b7..8d47a5846aeb 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -39,6 +39,7 @@ #include <linux/pm.h> #include <linux/pci.h> #include <linux/mutex.h> +#include <linux/slab.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 64f55b6db73c..4eac59393edc 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -30,9 +30,11 @@ #include <linux/proc_fs.h> #include <linux/spinlock.h> #include <linux/pm.h> +#include <linux/pm_runtime.h> #include <linux/pci.h> #include <linux/pci-acpi.h> #include <linux/acpi.h> +#include <linux/slab.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -118,7 +120,8 @@ acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus) struct acpi_pci_root *root; list_for_each_entry(root, &acpi_pci_roots, node) - if ((root->segment == (u16) seg) && (root->bus_nr == (u16) bus)) + if ((root->segment == (u16) seg) && + (root->secondary.start == (u16) bus)) return root->device->handle; return NULL; } @@ -152,7 +155,7 @@ EXPORT_SYMBOL_GPL(acpi_is_root_bridge); static acpi_status get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data) { - int *busnr = data; + struct resource *res = data; struct acpi_resource_address64 address; if (resource->type != ACPI_RESOURCE_TYPE_ADDRESS16 && @@ -162,28 +165,27 @@ get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data) acpi_resource_to_address64(resource, &address); if ((address.address_length > 0) && - (address.resource_type == ACPI_BUS_NUMBER_RANGE)) - *busnr = address.minimum; + (address.resource_type == ACPI_BUS_NUMBER_RANGE)) { + res->start = address.minimum; + res->end = address.minimum + address.address_length - 1; + } return AE_OK; } static acpi_status try_get_root_bridge_busnr(acpi_handle handle, - unsigned long long *bus) + struct resource *res) { acpi_status status; - int busnum; - busnum = -1; + res->start = -1; status = acpi_walk_resources(handle, METHOD_NAME__CRS, - get_root_bridge_busnr_callback, &busnum); + get_root_bridge_busnr_callback, res); if (ACPI_FAILURE(status)) return status; - /* Check if we really get a bus number from _CRS */ - if (busnum == -1) + if (res->start == -1) return AE_ERROR; - *bus = busnum; return AE_OK; } @@ -427,34 +429,47 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) struct acpi_device *child; u32 flags, base_flags; + root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL); + if (!root) + return -ENOMEM; + segment = 0; status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL, &segment); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { printk(KERN_ERR PREFIX "can't evaluate _SEG\n"); - return -ENODEV; + result = -ENODEV; + goto end; } /* Check _CRS first, then _BBN. If no _BBN, default to zero. */ - bus = 0; - status = try_get_root_bridge_busnr(device->handle, &bus); + root->secondary.flags = IORESOURCE_BUS; + status = try_get_root_bridge_busnr(device->handle, &root->secondary); if (ACPI_FAILURE(status)) { + /* + * We need both the start and end of the downstream bus range + * to interpret _CBA (MMCONFIG base address), so it really is + * supposed to be in _CRS. If we don't find it there, all we + * can do is assume [_BBN-0xFF] or [0-0xFF]. + */ + root->secondary.end = 0xFF; + printk(KERN_WARNING FW_BUG PREFIX + "no secondary bus range in _CRS\n"); status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, NULL, &bus); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - printk(KERN_ERR PREFIX - "no bus number in _CRS and can't evaluate _BBN\n"); - return -ENODEV; + if (ACPI_SUCCESS(status)) + root->secondary.start = bus; + else if (status == AE_NOT_FOUND) + root->secondary.start = 0; + else { + printk(KERN_ERR PREFIX "can't evaluate _BBN\n"); + result = -ENODEV; + goto end; } } - root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL); - if (!root) - return -ENOMEM; - INIT_LIST_HEAD(&root->node); root->device = device; root->segment = segment & 0xFFFF; - root->bus_nr = bus & 0xFF; strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS); device->driver_data = root; @@ -473,9 +488,9 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) /* TBD: Locking */ list_add_tail(&root->node, &acpi_pci_roots); - printk(KERN_INFO PREFIX "%s [%s] (%04x:%02x)\n", + printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n", acpi_device_name(device), acpi_device_bid(device), - root->segment, root->bus_nr); + root->segment, &root->secondary); /* * Scan the Root Bridge @@ -484,11 +499,11 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) * PCI namespace does not get created until this call is made (and * thus the root bridge's pci_dev does not exist). */ - root->bus = pci_acpi_scan_root(device, segment, bus); + root->bus = pci_acpi_scan_root(root); if (!root->bus) { printk(KERN_ERR PREFIX "Bus %04x:%02x not present in PCI namespace\n", - root->segment, root->bus_nr); + root->segment, (unsigned int)root->secondary.start); result = -ENODEV; goto end; } @@ -528,6 +543,10 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) if (flags != base_flags) acpi_pci_osc_support(root, flags); + pci_acpi_add_bus_pm_notifier(device, root->bus); + if (device->wakeup.flags.run_wake) + device_set_run_wake(root->bus->bridge, true); + return 0; end: @@ -549,6 +568,9 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type) { struct acpi_pci_root *root = acpi_driver_data(device); + device_set_run_wake(root->bus->bridge, false); + pci_acpi_remove_bus_pm_notifier(device); + kfree(root); return 0; } @@ -558,6 +580,7 @@ static int __init acpi_pci_root_init(void) if (acpi_pci_disabled) return 0; + pci_acpi_crs_quirks(); if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0) return -ENODEV; diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 11f219743204..07f7fea8a4e2 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -26,6 +26,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/acpi.h> diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 0f30c3c1eea4..f74d3b31e5c9 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -39,6 +39,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> +#include <linux/slab.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <acpi/acpi_bus.h> @@ -171,7 +172,6 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state) return -EINVAL; /* The state of the list is 'on' IFF all resources are 'on'. */ - /* */ for (i = 0; i < list->count; i++) { /* diff --git a/drivers/acpi/power_meter.c b/drivers/acpi/power_meter.c index dc4ffadf8122..66f67293341e 100644 --- a/drivers/acpi/power_meter.c +++ b/drivers/acpi/power_meter.c @@ -25,6 +25,7 @@ #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/dmi.h> +#include <linux/slab.h> #include <linux/kdev_t.h> #include <linux/sched.h> #include <linux/time.h> @@ -34,7 +35,7 @@ #define ACPI_POWER_METER_NAME "power_meter" ACPI_MODULE_NAME(ACPI_POWER_METER_NAME); #define ACPI_POWER_METER_DEVICE_NAME "Power Meter" -#define ACPI_POWER_METER_CLASS "power_meter_resource" +#define ACPI_POWER_METER_CLASS "pwr_meter_resource" #define NUM_SENSORS 17 @@ -71,17 +72,17 @@ static const struct acpi_device_id power_meter_ids[] = { MODULE_DEVICE_TABLE(acpi, power_meter_ids); struct acpi_power_meter_capabilities { - acpi_integer flags; - acpi_integer units; - acpi_integer type; - acpi_integer accuracy; - acpi_integer sampling_time; - acpi_integer min_avg_interval; - acpi_integer max_avg_interval; - acpi_integer hysteresis; - acpi_integer configurable_cap; - acpi_integer min_cap; - acpi_integer max_cap; + u64 flags; + u64 units; + u64 type; + u64 accuracy; + u64 sampling_time; + u64 min_avg_interval; + u64 max_avg_interval; + u64 hysteresis; + u64 configurable_cap; + u64 min_cap; + u64 max_cap; }; struct acpi_power_meter_resource { @@ -93,9 +94,9 @@ struct acpi_power_meter_resource { acpi_string model_number; acpi_string serial_number; acpi_string oem_info; - acpi_integer power; - acpi_integer cap; - acpi_integer avg_interval; + u64 power; + u64 cap; + u64 avg_interval; int sensors_valid; unsigned long sensors_last_updated; struct sensor_device_attribute sensors[NUM_SENSORS]; @@ -402,7 +403,7 @@ static ssize_t show_val(struct device *dev, struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - acpi_integer val = 0; + u64 val = 0; switch (attr->index) { case 0: diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index d0d25e2e1ced..1ac678d2c51c 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -435,7 +435,7 @@ acpi_system_write_wakeup_device(struct file *file, found_dev->wakeup.gpe_device)) { printk(KERN_WARNING "ACPI: '%s' and '%s' have the same GPE, " - "can't disable/enable one seperately\n", + "can't disable/enable one separately\n", dev->pnp.bus_id, found_dev->pnp.bus_id); dev->wakeup.state.enabled = found_dev->wakeup.state.enabled; diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 9863c98c81ba..e9699aaed109 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -1,381 +1,63 @@ /* - * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $) + * Copyright (C) 2005 Intel Corporation + * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. * - * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> - * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> - * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de> - * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> - * - Added processor hotplug support - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * TBD: - * 1. Make # power states dynamic. - * 2. Support duty_cycle values that span bit 4. - * 3. Optimize by having scheduler determine business instead of - * having us try to calculate it here. - * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this. + * Alex Chiang <achiang@hp.com> + * - Unified x86/ia64 implementations + * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> + * - Added _PDC for platforms with Intel CPUs */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/pm.h> -#include <linux/cpufreq.h> -#include <linux/cpu.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> #include <linux/dmi.h> -#include <linux/moduleparam.h> -#include <linux/cpuidle.h> +#include <linux/slab.h> -#include <asm/io.h> -#include <asm/system.h> -#include <asm/cpu.h> -#include <asm/delay.h> -#include <asm/uaccess.h> -#include <asm/processor.h> -#include <asm/smp.h> -#include <asm/acpi.h> - -#include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> #include <acpi/processor.h> -#define PREFIX "ACPI: " - -#define ACPI_PROCESSOR_CLASS "processor" -#define ACPI_PROCESSOR_DEVICE_NAME "Processor" -#define ACPI_PROCESSOR_FILE_INFO "info" -#define ACPI_PROCESSOR_FILE_THROTTLING "throttling" -#define ACPI_PROCESSOR_FILE_LIMIT "limit" -#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80 -#define ACPI_PROCESSOR_NOTIFY_POWER 0x81 -#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82 - -#define ACPI_PROCESSOR_LIMIT_USER 0 -#define ACPI_PROCESSOR_LIMIT_THERMAL 1 +#include "internal.h" +#define PREFIX "ACPI: " #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_core"); -MODULE_AUTHOR("Paul Diefenbaugh"); -MODULE_DESCRIPTION("ACPI Processor Driver"); -MODULE_LICENSE("GPL"); - -static int acpi_processor_add(struct acpi_device *device); -static int acpi_processor_remove(struct acpi_device *device, int type); -#ifdef CONFIG_ACPI_PROCFS -static int acpi_processor_info_open_fs(struct inode *inode, struct file *file); -#endif -static void acpi_processor_notify(struct acpi_device *device, u32 event); -static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu); -static int acpi_processor_handle_eject(struct acpi_processor *pr); - - -static const struct acpi_device_id processor_device_ids[] = { - {ACPI_PROCESSOR_OBJECT_HID, 0}, - {"ACPI0007", 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, processor_device_ids); - -static struct acpi_driver acpi_processor_driver = { - .name = "processor", - .class = ACPI_PROCESSOR_CLASS, - .ids = processor_device_ids, - .ops = { - .add = acpi_processor_add, - .remove = acpi_processor_remove, - .suspend = acpi_processor_suspend, - .resume = acpi_processor_resume, - .notify = acpi_processor_notify, - }, -}; - -#define INSTALL_NOTIFY_HANDLER 1 -#define UNINSTALL_NOTIFY_HANDLER 2 -#ifdef CONFIG_ACPI_PROCFS -static const struct file_operations acpi_processor_info_fops = { - .owner = THIS_MODULE, - .open = acpi_processor_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - -DEFINE_PER_CPU(struct acpi_processor *, processors); -struct acpi_processor_errata errata __read_mostly; - -/* -------------------------------------------------------------------------- - Errata Handling - -------------------------------------------------------------------------- */ - -static int acpi_processor_errata_piix4(struct pci_dev *dev) +static int set_no_mwait(const struct dmi_system_id *id) { - u8 value1 = 0; - u8 value2 = 0; - - - if (!dev) - return -EINVAL; - - /* - * Note that 'dev' references the PIIX4 ACPI Controller. - */ - - switch (dev->revision) { - case 0: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n")); - break; - case 1: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n")); - break; - case 2: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n")); - break; - case 3: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n")); - break; - default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n")); - break; - } - - switch (dev->revision) { - - case 0: /* PIIX4 A-step */ - case 1: /* PIIX4 B-step */ - /* - * See specification changes #13 ("Manual Throttle Duty Cycle") - * and #14 ("Enabling and Disabling Manual Throttle"), plus - * erratum #5 ("STPCLK# Deassertion Time") from the January - * 2002 PIIX4 specification update. Applies to only older - * PIIX4 models. - */ - errata.piix4.throttle = 1; - - case 2: /* PIIX4E */ - case 3: /* PIIX4M */ - /* - * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA - * Livelock") from the January 2002 PIIX4 specification update. - * Applies to all PIIX4 models. - */ - - /* - * BM-IDE - * ------ - * Find the PIIX4 IDE Controller and get the Bus Master IDE - * Status register address. We'll use this later to read - * each IDE controller's DMA status to make sure we catch all - * DMA activity. - */ - dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB, - PCI_ANY_ID, PCI_ANY_ID, NULL); - if (dev) { - errata.piix4.bmisx = pci_resource_start(dev, 4); - pci_dev_put(dev); - } - - /* - * Type-F DMA - * ---------- - * Find the PIIX4 ISA Controller and read the Motherboard - * DMA controller's status to see if Type-F (Fast) DMA mode - * is enabled (bit 7) on either channel. Note that we'll - * disable C3 support if this is enabled, as some legacy - * devices won't operate well if fast DMA is disabled. - */ - dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_0, - PCI_ANY_ID, PCI_ANY_ID, NULL); - if (dev) { - pci_read_config_byte(dev, 0x76, &value1); - pci_read_config_byte(dev, 0x77, &value2); - if ((value1 & 0x80) || (value2 & 0x80)) - errata.piix4.fdma = 1; - pci_dev_put(dev); - } - - break; - } - - if (errata.piix4.bmisx) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Bus master activity detection (BM-IDE) erratum enabled\n")); - if (errata.piix4.fdma) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Type-F DMA livelock erratum (C3 disabled)\n")); - + printk(KERN_NOTICE PREFIX "%s detected - " + "disabling mwait for CPU C-states\n", id->ident); + idle_nomwait = 1; return 0; } -static int acpi_processor_errata(struct acpi_processor *pr) -{ - int result = 0; - struct pci_dev *dev = NULL; - - - if (!pr) - return -EINVAL; - - /* - * PIIX4 - */ - dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID, - PCI_ANY_ID, NULL); - if (dev) { - result = acpi_processor_errata_piix4(dev); - pci_dev_put(dev); - } - - return result; -} - -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -#ifdef CONFIG_ACPI_PROCFS -static struct proc_dir_entry *acpi_processor_dir = NULL; - -static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_processor *pr = seq->private; - - - if (!pr) - goto end; - - seq_printf(seq, "processor id: %d\n" - "acpi id: %d\n" - "bus mastering control: %s\n" - "power management: %s\n" - "throttling control: %s\n" - "limit interface: %s\n", - pr->id, - pr->acpi_id, - pr->flags.bm_control ? "yes" : "no", - pr->flags.power ? "yes" : "no", - pr->flags.throttling ? "yes" : "no", - pr->flags.limit ? "yes" : "no"); - - end: - return 0; -} - -static int acpi_processor_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_processor_info_seq_show, - PDE(inode)->data); -} - -static int __cpuinit acpi_processor_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - - - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_processor_dir); - if (!acpi_device_dir(device)) - return -ENODEV; - } - - /* 'info' [R] */ - entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO, - S_IRUGO, acpi_device_dir(device), - &acpi_processor_info_fops, - acpi_driver_data(device)); - if (!entry) - return -EIO; - - /* 'throttling' [R/W] */ - entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING, - S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), - &acpi_processor_throttling_fops, - acpi_driver_data(device)); - if (!entry) - return -EIO; - - /* 'limit' [R/W] */ - entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT, - S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), - &acpi_processor_limit_fops, - acpi_driver_data(device)); - if (!entry) - return -EIO; - return 0; -} -static int acpi_processor_remove_fs(struct acpi_device *device) -{ - - if (acpi_device_dir(device)) { - remove_proc_entry(ACPI_PROCESSOR_FILE_INFO, - acpi_device_dir(device)); - remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING, - acpi_device_dir(device)); - remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT, - acpi_device_dir(device)); - remove_proc_entry(acpi_device_bid(device), acpi_processor_dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} -#else -static inline int acpi_processor_add_fs(struct acpi_device *device) -{ - return 0; -} -static inline int acpi_processor_remove_fs(struct acpi_device *device) -{ - return 0; -} -#endif - -/* Use the acpiid in MADT to map cpus in case of SMP */ - -#ifndef CONFIG_SMP -static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) { return -1; } -#else - -static struct acpi_table_madt *madt; +static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = { + { + set_no_mwait, "IFL91 board", { + DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), + DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"), + DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL}, + { + set_no_mwait, "Extensa 5220", { + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), + DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, + {}, +}; +#ifdef CONFIG_SMP static int map_lapic_id(struct acpi_subtable_header *entry, u32 acpi_id, int *apic_id) { struct acpi_madt_local_apic *lapic = (struct acpi_madt_local_apic *)entry; - if ((lapic->lapic_flags & ACPI_MADT_ENABLED) && - lapic->processor_id == acpi_id) { - *apic_id = lapic->id; - return 1; - } - return 0; + + if (!(lapic->lapic_flags & ACPI_MADT_ENABLED)) + return 0; + + if (lapic->processor_id != acpi_id) + return 0; + + *apic_id = lapic->id; + return 1; } static int map_x2apic_id(struct acpi_subtable_header *entry, @@ -383,22 +65,16 @@ static int map_x2apic_id(struct acpi_subtable_header *entry, { struct acpi_madt_local_x2apic *apic = (struct acpi_madt_local_x2apic *)entry; - u32 tmp = apic->local_apic_id; - /* Only check enabled APICs*/ if (!(apic->lapic_flags & ACPI_MADT_ENABLED)) return 0; - /* Device statement declaration type */ - if (device_declaration) { - if (apic->uid == acpi_id) - goto found; + if (device_declaration && (apic->uid == acpi_id)) { + *apic_id = apic->local_apic_id; + return 1; } return 0; -found: - *apic_id = tmp; - return 1; } static int map_lsapic_id(struct acpi_subtable_header *entry, @@ -406,35 +82,34 @@ static int map_lsapic_id(struct acpi_subtable_header *entry, { struct acpi_madt_local_sapic *lsapic = (struct acpi_madt_local_sapic *)entry; - u32 tmp = (lsapic->id << 8) | lsapic->eid; - /* Only check enabled APICs*/ if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED)) return 0; - /* Device statement declaration type */ if (device_declaration) { - if (entry->length < 16) - printk(KERN_ERR PREFIX - "Invalid LSAPIC with Device type processor (SAPIC ID %#x)\n", - tmp); - else if (lsapic->uid == acpi_id) - goto found; - /* Processor statement declaration type */ - } else if (lsapic->processor_id == acpi_id) - goto found; + if ((entry->length < 16) || (lsapic->uid != acpi_id)) + return 0; + } else if (lsapic->processor_id != acpi_id) + return 0; - return 0; -found: - *apic_id = tmp; + *apic_id = (lsapic->id << 8) | lsapic->eid; return 1; } static int map_madt_entry(int type, u32 acpi_id) { unsigned long madt_end, entry; + static struct acpi_table_madt *madt; + static int read_madt; int apic_id = -1; + if (!read_madt) { + if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, + (struct acpi_table_header **)&madt))) + madt = NULL; + read_madt++; + } + if (!madt) return apic_id; @@ -494,7 +169,7 @@ exit: return apic_id; } -static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) +int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) { int i; int apic_id = -1; @@ -511,630 +186,170 @@ static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) } return -1; } +EXPORT_SYMBOL_GPL(acpi_get_cpuid); #endif -/* -------------------------------------------------------------------------- - Driver Interface - -------------------------------------------------------------------------- */ - -static int acpi_processor_get_info(struct acpi_device *device) +static bool processor_physically_present(acpi_handle handle) { - acpi_status status = 0; + int cpuid, type; + u32 acpi_id; + acpi_status status; + acpi_object_type acpi_type; + unsigned long long tmp; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - struct acpi_processor *pr; - int cpu_index, device_declaration = 0; - static int cpu0_initialized; - - pr = acpi_driver_data(device); - if (!pr) - return -EINVAL; - - if (num_online_cpus() > 1) - errata.smp = TRUE; - - acpi_processor_errata(pr); - - /* - * Check to see if we have bus mastering arbitration control. This - * is required for proper C3 usage (to maintain cache coherency). - */ - if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) { - pr->flags.bm_control = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Bus mastering arbitration control present\n")); - } else - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "No bus mastering arbitration control\n")); - - if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) { - /* Declared with "Processor" statement; match ProcessorID */ - status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer); - if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX "Evaluating processor object\n"); - return -ENODEV; - } - - /* - * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP. - * >>> 'acpi_get_processor_id(acpi_id, &id)' in - * arch/xxx/acpi.c - */ - pr->acpi_id = object.processor.proc_id; - } else { - /* - * Declared with "Device" statement; match _UID. - * Note that we don't handle string _UIDs yet. - */ - unsigned long long value; - status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID, - NULL, &value); - if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX - "Evaluating processor _UID [%#x]\n", status); - return -ENODEV; - } - device_declaration = 1; - pr->acpi_id = value; - } - cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id); - - /* Handle UP system running SMP kernel, with no LAPIC in MADT */ - if (!cpu0_initialized && (cpu_index == -1) && - (num_online_cpus() == 1)) { - cpu_index = 0; - } - - cpu0_initialized = 1; - - pr->id = cpu_index; - - /* - * Extra Processor objects may be enumerated on MP systems with - * less than the max # of CPUs. They should be ignored _iff - * they are physically not present. - */ - if (pr->id == -1) { - if (ACPI_FAILURE - (acpi_processor_hotadd_init(pr->handle, &pr->id))) { - return -ENODEV; - } - } - /* - * On some boxes several processors use the same processor bus id. - * But they are located in different scope. For example: - * \_SB.SCK0.CPU0 - * \_SB.SCK1.CPU0 - * Rename the processor device bus id. And the new bus id will be - * generated as the following format: - * CPU+CPU ID. - */ - sprintf(acpi_device_bid(device), "CPU%X", pr->id); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id, - pr->acpi_id)); - - if (!object.processor.pblk_address) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n")); - else if (object.processor.pblk_length != 6) - printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n", - object.processor.pblk_length); - else { - pr->throttling.address = object.processor.pblk_address; - pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset; - pr->throttling.duty_width = acpi_gbl_FADT.duty_width; - - pr->pblk = object.processor.pblk_address; - - /* - * We don't care about error returns - we just try to mark - * these reserved so that nobody else is confused into thinking - * that this region might be unused.. - * - * (In particular, allocating the IO range for Cardbus) - */ - request_region(pr->throttling.address, 6, "ACPI CPU throttle"); - } - - /* - * If ACPI describes a slot number for this CPU, we can use it - * ensure we get the right value in the "physical id" field - * of /proc/cpuinfo - */ - status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer); - if (ACPI_SUCCESS(status)) - arch_fix_phys_package_id(pr->id, object.integer.value); - - return 0; -} -static DEFINE_PER_CPU(void *, processor_device_array); - -static void acpi_processor_notify(struct acpi_device *device, u32 event) -{ - struct acpi_processor *pr = acpi_driver_data(device); - int saved; - - if (!pr) - return; - - switch (event) { - case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: - saved = pr->performance_platform_limit; - acpi_processor_ppc_has_changed(pr, 1); - if (saved == pr->performance_platform_limit) - break; - acpi_bus_generate_proc_event(device, event, - pr->performance_platform_limit); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, - pr->performance_platform_limit); + status = acpi_get_type(handle, &acpi_type); + if (ACPI_FAILURE(status)) + return false; + + switch (acpi_type) { + case ACPI_TYPE_PROCESSOR: + status = acpi_evaluate_object(handle, NULL, NULL, &buffer); + if (ACPI_FAILURE(status)) + return false; + acpi_id = object.processor.proc_id; break; - case ACPI_PROCESSOR_NOTIFY_POWER: - acpi_processor_cst_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, 0); + case ACPI_TYPE_DEVICE: + status = acpi_evaluate_integer(handle, "_UID", NULL, &tmp); + if (ACPI_FAILURE(status)) + return false; + acpi_id = tmp; break; - case ACPI_PROCESSOR_NOTIFY_THROTTLING: - acpi_processor_tstate_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, 0); default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); - break; + return false; } - return; -} + type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0; + cpuid = acpi_get_cpuid(handle, type, acpi_id); -static int acpi_cpu_soft_notify(struct notifier_block *nfb, - unsigned long action, void *hcpu) -{ - unsigned int cpu = (unsigned long)hcpu; - struct acpi_processor *pr = per_cpu(processors, cpu); + if ((cpuid == -1) && (num_possible_cpus() > 1)) + return false; - if (action == CPU_ONLINE && pr) { - acpi_processor_ppc_has_changed(pr, 0); - acpi_processor_cst_has_changed(pr); - acpi_processor_tstate_has_changed(pr); - } - return NOTIFY_OK; + return true; } -static struct notifier_block acpi_cpu_notifier = +static void acpi_set_pdc_bits(u32 *buf) { - .notifier_call = acpi_cpu_soft_notify, -}; - -static int __cpuinit acpi_processor_add(struct acpi_device *device) -{ - struct acpi_processor *pr = NULL; - int result = 0; - struct sys_device *sysdev; - - pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL); - if (!pr) - return -ENOMEM; - - if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { - kfree(pr); - return -ENOMEM; - } - - pr->handle = device->handle; - strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME); - strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS); - device->driver_data = pr; - - result = acpi_processor_get_info(device); - if (result) { - /* Processor is physically not present */ - return 0; - } - - BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); - - /* - * Buggy BIOS check - * ACPI id of processors can be reported wrongly by the BIOS. - * Don't trust it blindly - */ - if (per_cpu(processor_device_array, pr->id) != NULL && - per_cpu(processor_device_array, pr->id) != device) { - printk(KERN_WARNING "BIOS reported wrong ACPI id " - "for the processor\n"); - result = -ENODEV; - goto err_free_cpumask; - } - per_cpu(processor_device_array, pr->id) = device; - - per_cpu(processors, pr->id) = pr; - - result = acpi_processor_add_fs(device); - if (result) - goto err_free_cpumask; - - sysdev = get_cpu_sysdev(pr->id); - if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) { - result = -EFAULT; - goto err_remove_fs; - } - - /* _PDC call should be done before doing anything else (if reqd.). */ - acpi_processor_set_pdc(pr->handle); - -#ifdef CONFIG_CPU_FREQ - acpi_processor_ppc_has_changed(pr, 0); -#endif - acpi_processor_get_throttling_info(pr); - acpi_processor_get_limit_info(pr); - - - acpi_processor_power_init(pr, device); - - pr->cdev = thermal_cooling_device_register("Processor", device, - &processor_cooling_ops); - if (IS_ERR(pr->cdev)) { - result = PTR_ERR(pr->cdev); - goto err_power_exit; - } - - dev_dbg(&device->dev, "registered as cooling_device%d\n", - pr->cdev->id); - - result = sysfs_create_link(&device->dev.kobj, - &pr->cdev->device.kobj, - "thermal_cooling"); - if (result) { - printk(KERN_ERR PREFIX "Create sysfs link\n"); - goto err_thermal_unregister; - } - result = sysfs_create_link(&pr->cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) { - printk(KERN_ERR PREFIX "Create sysfs link\n"); - goto err_remove_sysfs; - } + buf[0] = ACPI_PDC_REVISION_ID; + buf[1] = 1; - return 0; - -err_remove_sysfs: - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); -err_thermal_unregister: - thermal_cooling_device_unregister(pr->cdev); -err_power_exit: - acpi_processor_power_exit(pr, device); -err_remove_fs: - acpi_processor_remove_fs(device); -err_free_cpumask: - free_cpumask_var(pr->throttling.shared_cpu_map); + /* Enable coordination with firmware's _TSD info */ + buf[2] = ACPI_PDC_SMP_T_SWCOORD; - return result; + /* Twiddle arch-specific bits needed for _PDC */ + arch_acpi_set_pdc_bits(buf); } -static int acpi_processor_remove(struct acpi_device *device, int type) +static struct acpi_object_list *acpi_processor_alloc_pdc(void) { - struct acpi_processor *pr = NULL; - - - if (!device || !acpi_driver_data(device)) - return -EINVAL; - - pr = acpi_driver_data(device); - - if (pr->id >= nr_cpu_ids) - goto free; + struct acpi_object_list *obj_list; + union acpi_object *obj; + u32 *buf; - if (type == ACPI_BUS_REMOVAL_EJECT) { - if (acpi_processor_handle_eject(pr)) - return -EINVAL; + /* allocate and initialize pdc. It will be used later. */ + obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); + if (!obj_list) { + printk(KERN_ERR "Memory allocation error\n"); + return NULL; } - acpi_processor_power_exit(pr, device); - - sysfs_remove_link(&device->dev.kobj, "sysdev"); - - acpi_processor_remove_fs(device); - - if (pr->cdev) { - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); - sysfs_remove_link(&pr->cdev->device.kobj, "device"); - thermal_cooling_device_unregister(pr->cdev); - pr->cdev = NULL; + obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); + if (!obj) { + printk(KERN_ERR "Memory allocation error\n"); + kfree(obj_list); + return NULL; } - per_cpu(processors, pr->id) = NULL; - per_cpu(processor_device_array, pr->id) = NULL; - -free: - free_cpumask_var(pr->throttling.shared_cpu_map); - kfree(pr); - - return 0; -} - -#ifdef CONFIG_ACPI_HOTPLUG_CPU -/**************************************************************************** - * Acpi processor hotplug support * - ****************************************************************************/ - -static int is_processor_present(acpi_handle handle) -{ - acpi_status status; - unsigned long long sta = 0; - - - status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); - - if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT)) - return 1; - - /* - * _STA is mandatory for a processor that supports hot plug - */ - if (status == AE_NOT_FOUND) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Processor does not support hot plug\n")); - else - ACPI_EXCEPTION((AE_INFO, status, - "Processor Device is not present")); - return 0; -} - -static -int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device) -{ - acpi_handle phandle; - struct acpi_device *pdev; - - - if (acpi_get_parent(handle, &phandle)) { - return -ENODEV; + buf = kmalloc(12, GFP_KERNEL); + if (!buf) { + printk(KERN_ERR "Memory allocation error\n"); + kfree(obj); + kfree(obj_list); + return NULL; } - if (acpi_bus_get_device(phandle, &pdev)) { - return -ENODEV; - } + acpi_set_pdc_bits(buf); - if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) { - return -ENODEV; - } + obj->type = ACPI_TYPE_BUFFER; + obj->buffer.length = 12; + obj->buffer.pointer = (u8 *) buf; + obj_list->count = 1; + obj_list->pointer = obj; - return 0; + return obj_list; } -static void __ref acpi_processor_hotplug_notify(acpi_handle handle, - u32 event, void *data) +/* + * _PDC is required for a BIOS-OS handshake for most of the newer + * ACPI processor features. + */ +static int +acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in) { - struct acpi_processor *pr; - struct acpi_device *device = NULL; - int result; - + acpi_status status = AE_OK; - switch (event) { - case ACPI_NOTIFY_BUS_CHECK: - case ACPI_NOTIFY_DEVICE_CHECK: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Processor driver received %s event\n", - (event == ACPI_NOTIFY_BUS_CHECK) ? - "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK")); - - if (!is_processor_present(handle)) - break; + if (idle_nomwait) { + /* + * If mwait is disabled for CPU C-states, the C2C3_FFH access + * mode will be disabled in the parameter of _PDC object. + * Of course C1_FFH access mode will also be disabled. + */ + union acpi_object *obj; + u32 *buffer = NULL; - if (acpi_bus_get_device(handle, &device)) { - result = acpi_processor_device_add(handle, &device); - if (result) - printk(KERN_ERR PREFIX - "Unable to add the device\n"); - break; - } - break; - case ACPI_NOTIFY_EJECT_REQUEST: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "received ACPI_NOTIFY_EJECT_REQUEST\n")); + obj = pdc_in->pointer; + buffer = (u32 *)(obj->buffer.pointer); + buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH); - if (acpi_bus_get_device(handle, &device)) { - printk(KERN_ERR PREFIX - "Device don't exist, dropping EJECT\n"); - break; - } - pr = acpi_driver_data(device); - if (!pr) { - printk(KERN_ERR PREFIX - "Driver data is NULL, dropping EJECT\n"); - return; - } - break; - default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); - break; } + status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL); - return; -} - -static acpi_status -processor_walk_namespace_cb(acpi_handle handle, - u32 lvl, void *context, void **rv) -{ - acpi_status status; - int *action = context; - acpi_object_type type = 0; - - status = acpi_get_type(handle, &type); if (ACPI_FAILURE(status)) - return (AE_OK); - - if (type != ACPI_TYPE_PROCESSOR) - return (AE_OK); - - switch (*action) { - case INSTALL_NOTIFY_HANDLER: - acpi_install_notify_handler(handle, - ACPI_SYSTEM_NOTIFY, - acpi_processor_hotplug_notify, - NULL); - break; - case UNINSTALL_NOTIFY_HANDLER: - acpi_remove_notify_handler(handle, - ACPI_SYSTEM_NOTIFY, - acpi_processor_hotplug_notify); - break; - default: - break; - } + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Could not evaluate _PDC, using legacy perf. control.\n")); - return (AE_OK); + return status; } -static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu) +void acpi_processor_set_pdc(acpi_handle handle) { + struct acpi_object_list *obj_list; - if (!is_processor_present(handle)) { - return AE_ERROR; - } + if (arch_has_acpi_pdc() == false) + return; - if (acpi_map_lsapic(handle, p_cpu)) - return AE_ERROR; + obj_list = acpi_processor_alloc_pdc(); + if (!obj_list) + return; - if (arch_register_cpu(*p_cpu)) { - acpi_unmap_lsapic(*p_cpu); - return AE_ERROR; - } + acpi_processor_eval_pdc(handle, obj_list); - return AE_OK; + kfree(obj_list->pointer->buffer.pointer); + kfree(obj_list->pointer); + kfree(obj_list); } +EXPORT_SYMBOL_GPL(acpi_processor_set_pdc); -static int acpi_processor_handle_eject(struct acpi_processor *pr) +static acpi_status +early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv) { - if (cpu_online(pr->id)) - cpu_down(pr->id); + if (processor_physically_present(handle) == false) + return AE_OK; - arch_unregister_cpu(pr->id); - acpi_unmap_lsapic(pr->id); - return (0); -} -#else -static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu) -{ - return AE_ERROR; -} -static int acpi_processor_handle_eject(struct acpi_processor *pr) -{ - return (-EINVAL); + acpi_processor_set_pdc(handle); + return AE_OK; } -#endif -static -void acpi_processor_install_hotplug_notify(void) +void __init acpi_early_processor_set_pdc(void) { -#ifdef CONFIG_ACPI_HOTPLUG_CPU - int action = INSTALL_NOTIFY_HANDLER; - acpi_walk_namespace(ACPI_TYPE_PROCESSOR, - ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, - processor_walk_namespace_cb, NULL, &action, NULL); -#endif - register_hotcpu_notifier(&acpi_cpu_notifier); -} + /* + * Check whether the system is DMI table. If yes, OSPM + * should not use mwait for CPU-states. + */ + dmi_check_system(processor_idle_dmi_table); -static -void acpi_processor_uninstall_hotplug_notify(void) -{ -#ifdef CONFIG_ACPI_HOTPLUG_CPU - int action = UNINSTALL_NOTIFY_HANDLER; - acpi_walk_namespace(ACPI_TYPE_PROCESSOR, - ACPI_ROOT_OBJECT, + acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - processor_walk_namespace_cb, NULL, &action, NULL); -#endif - unregister_hotcpu_notifier(&acpi_cpu_notifier); + early_init_pdc, NULL, NULL, NULL); } - -/* - * We keep the driver loaded even when ACPI is not running. - * This is needed for the powernow-k8 driver, that works even without - * ACPI, but needs symbols from this driver - */ - -static int __init acpi_processor_init(void) -{ - int result = 0; - - if (acpi_disabled) - return 0; - - memset(&errata, 0, sizeof(errata)); - -#ifdef CONFIG_SMP - if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, - (struct acpi_table_header **)&madt))) - madt = NULL; -#endif -#ifdef CONFIG_ACPI_PROCFS - acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir); - if (!acpi_processor_dir) - return -ENOMEM; -#endif - result = cpuidle_register_driver(&acpi_idle_driver); - if (result < 0) - goto out_proc; - - result = acpi_bus_register_driver(&acpi_processor_driver); - if (result < 0) - goto out_cpuidle; - - acpi_processor_install_hotplug_notify(); - - acpi_thermal_cpufreq_init(); - - acpi_processor_ppc_init(); - - acpi_processor_throttling_init(); - - return 0; - -out_cpuidle: - cpuidle_unregister_driver(&acpi_idle_driver); - -out_proc: -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); -#endif - - return result; -} - -static void __exit acpi_processor_exit(void) -{ - if (acpi_disabled) - return; - - acpi_processor_ppc_exit(); - - acpi_thermal_cpufreq_exit(); - - acpi_processor_uninstall_hotplug_notify(); - - acpi_bus_unregister_driver(&acpi_processor_driver); - - cpuidle_unregister_driver(&acpi_idle_driver); - -#ifdef CONFIG_ACPI_PROCFS - remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); -#endif - - return; -} - -module_init(acpi_processor_init); -module_exit(acpi_processor_exit); - -EXPORT_SYMBOL(acpi_processor_set_thermal_limit); - -MODULE_ALIAS("processor"); diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c new file mode 100644 index 000000000000..38ea0cc6dc49 --- /dev/null +++ b/drivers/acpi/processor_driver.c @@ -0,0 +1,989 @@ +/* + * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $) + * + * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> + * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de> + * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> + * - Added processor hotplug support + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * TBD: + * 1. Make # power states dynamic. + * 2. Support duty_cycle values that span bit 4. + * 3. Optimize by having scheduler determine business instead of + * having us try to calculate it here. + * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/pm.h> +#include <linux/cpufreq.h> +#include <linux/cpu.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/dmi.h> +#include <linux/moduleparam.h> +#include <linux/cpuidle.h> +#include <linux/slab.h> + +#include <asm/io.h> +#include <asm/system.h> +#include <asm/cpu.h> +#include <asm/delay.h> +#include <asm/uaccess.h> +#include <asm/processor.h> +#include <asm/smp.h> +#include <asm/acpi.h> + +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> +#include <acpi/processor.h> + +#define PREFIX "ACPI: " + +#define ACPI_PROCESSOR_CLASS "processor" +#define ACPI_PROCESSOR_DEVICE_NAME "Processor" +#define ACPI_PROCESSOR_FILE_INFO "info" +#define ACPI_PROCESSOR_FILE_THROTTLING "throttling" +#define ACPI_PROCESSOR_FILE_LIMIT "limit" +#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80 +#define ACPI_PROCESSOR_NOTIFY_POWER 0x81 +#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82 + +#define ACPI_PROCESSOR_LIMIT_USER 0 +#define ACPI_PROCESSOR_LIMIT_THERMAL 1 + +#define _COMPONENT ACPI_PROCESSOR_COMPONENT +ACPI_MODULE_NAME("processor_driver"); + +MODULE_AUTHOR("Paul Diefenbaugh"); +MODULE_DESCRIPTION("ACPI Processor Driver"); +MODULE_LICENSE("GPL"); + +static int acpi_processor_add(struct acpi_device *device); +static int acpi_processor_remove(struct acpi_device *device, int type); +#ifdef CONFIG_ACPI_PROCFS +static int acpi_processor_info_open_fs(struct inode *inode, struct file *file); +#endif +static void acpi_processor_notify(struct acpi_device *device, u32 event); +static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu); +static int acpi_processor_handle_eject(struct acpi_processor *pr); + + +static const struct acpi_device_id processor_device_ids[] = { + {ACPI_PROCESSOR_OBJECT_HID, 0}, + {"ACPI0007", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, processor_device_ids); + +static struct acpi_driver acpi_processor_driver = { + .name = "processor", + .class = ACPI_PROCESSOR_CLASS, + .ids = processor_device_ids, + .ops = { + .add = acpi_processor_add, + .remove = acpi_processor_remove, + .suspend = acpi_processor_suspend, + .resume = acpi_processor_resume, + .notify = acpi_processor_notify, + }, +}; + +#define INSTALL_NOTIFY_HANDLER 1 +#define UNINSTALL_NOTIFY_HANDLER 2 +#ifdef CONFIG_ACPI_PROCFS +static const struct file_operations acpi_processor_info_fops = { + .owner = THIS_MODULE, + .open = acpi_processor_info_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif + +DEFINE_PER_CPU(struct acpi_processor *, processors); +EXPORT_PER_CPU_SYMBOL(processors); + +struct acpi_processor_errata errata __read_mostly; + +/* -------------------------------------------------------------------------- + Errata Handling + -------------------------------------------------------------------------- */ + +static int acpi_processor_errata_piix4(struct pci_dev *dev) +{ + u8 value1 = 0; + u8 value2 = 0; + + + if (!dev) + return -EINVAL; + + /* + * Note that 'dev' references the PIIX4 ACPI Controller. + */ + + switch (dev->revision) { + case 0: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n")); + break; + case 1: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n")); + break; + case 2: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n")); + break; + case 3: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n")); + break; + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n")); + break; + } + + switch (dev->revision) { + + case 0: /* PIIX4 A-step */ + case 1: /* PIIX4 B-step */ + /* + * See specification changes #13 ("Manual Throttle Duty Cycle") + * and #14 ("Enabling and Disabling Manual Throttle"), plus + * erratum #5 ("STPCLK# Deassertion Time") from the January + * 2002 PIIX4 specification update. Applies to only older + * PIIX4 models. + */ + errata.piix4.throttle = 1; + + case 2: /* PIIX4E */ + case 3: /* PIIX4M */ + /* + * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA + * Livelock") from the January 2002 PIIX4 specification update. + * Applies to all PIIX4 models. + */ + + /* + * BM-IDE + * ------ + * Find the PIIX4 IDE Controller and get the Bus Master IDE + * Status register address. We'll use this later to read + * each IDE controller's DMA status to make sure we catch all + * DMA activity. + */ + dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB, + PCI_ANY_ID, PCI_ANY_ID, NULL); + if (dev) { + errata.piix4.bmisx = pci_resource_start(dev, 4); + pci_dev_put(dev); + } + + /* + * Type-F DMA + * ---------- + * Find the PIIX4 ISA Controller and read the Motherboard + * DMA controller's status to see if Type-F (Fast) DMA mode + * is enabled (bit 7) on either channel. Note that we'll + * disable C3 support if this is enabled, as some legacy + * devices won't operate well if fast DMA is disabled. + */ + dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_0, + PCI_ANY_ID, PCI_ANY_ID, NULL); + if (dev) { + pci_read_config_byte(dev, 0x76, &value1); + pci_read_config_byte(dev, 0x77, &value2); + if ((value1 & 0x80) || (value2 & 0x80)) + errata.piix4.fdma = 1; + pci_dev_put(dev); + } + + break; + } + + if (errata.piix4.bmisx) + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Bus master activity detection (BM-IDE) erratum enabled\n")); + if (errata.piix4.fdma) + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Type-F DMA livelock erratum (C3 disabled)\n")); + + return 0; +} + +static int acpi_processor_errata(struct acpi_processor *pr) +{ + int result = 0; + struct pci_dev *dev = NULL; + + + if (!pr) + return -EINVAL; + + /* + * PIIX4 + */ + dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID, + PCI_ANY_ID, NULL); + if (dev) { + result = acpi_processor_errata_piix4(dev); + pci_dev_put(dev); + } + + return result; +} + +/* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ + +#ifdef CONFIG_ACPI_PROCFS +static struct proc_dir_entry *acpi_processor_dir = NULL; + +static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset) +{ + struct acpi_processor *pr = seq->private; + + + if (!pr) + goto end; + + seq_printf(seq, "processor id: %d\n" + "acpi id: %d\n" + "bus mastering control: %s\n" + "power management: %s\n" + "throttling control: %s\n" + "limit interface: %s\n", + pr->id, + pr->acpi_id, + pr->flags.bm_control ? "yes" : "no", + pr->flags.power ? "yes" : "no", + pr->flags.throttling ? "yes" : "no", + pr->flags.limit ? "yes" : "no"); + + end: + return 0; +} + +static int acpi_processor_info_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_processor_info_seq_show, + PDE(inode)->data); +} + +static int __cpuinit acpi_processor_add_fs(struct acpi_device *device) +{ + struct proc_dir_entry *entry = NULL; + + + if (!acpi_device_dir(device)) { + acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), + acpi_processor_dir); + if (!acpi_device_dir(device)) + return -ENODEV; + } + + /* 'info' [R] */ + entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO, + S_IRUGO, acpi_device_dir(device), + &acpi_processor_info_fops, + acpi_driver_data(device)); + if (!entry) + return -EIO; + + /* 'throttling' [R/W] */ + entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING, + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device), + &acpi_processor_throttling_fops, + acpi_driver_data(device)); + if (!entry) + return -EIO; + + /* 'limit' [R/W] */ + entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT, + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device), + &acpi_processor_limit_fops, + acpi_driver_data(device)); + if (!entry) + return -EIO; + return 0; +} +static int acpi_processor_remove_fs(struct acpi_device *device) +{ + + if (acpi_device_dir(device)) { + remove_proc_entry(ACPI_PROCESSOR_FILE_INFO, + acpi_device_dir(device)); + remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING, + acpi_device_dir(device)); + remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT, + acpi_device_dir(device)); + remove_proc_entry(acpi_device_bid(device), acpi_processor_dir); + acpi_device_dir(device) = NULL; + } + + return 0; +} +#else +static inline int acpi_processor_add_fs(struct acpi_device *device) +{ + return 0; +} +static inline int acpi_processor_remove_fs(struct acpi_device *device) +{ + return 0; +} +#endif + +/* -------------------------------------------------------------------------- + Driver Interface + -------------------------------------------------------------------------- */ + +static int acpi_processor_get_info(struct acpi_device *device) +{ + acpi_status status = 0; + union acpi_object object = { 0 }; + struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; + struct acpi_processor *pr; + int cpu_index, device_declaration = 0; + static int cpu0_initialized; + + pr = acpi_driver_data(device); + if (!pr) + return -EINVAL; + + if (num_online_cpus() > 1) + errata.smp = TRUE; + + acpi_processor_errata(pr); + + /* + * Check to see if we have bus mastering arbitration control. This + * is required for proper C3 usage (to maintain cache coherency). + */ + if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) { + pr->flags.bm_control = 1; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Bus mastering arbitration control present\n")); + } else + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "No bus mastering arbitration control\n")); + + if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) { + /* Declared with "Processor" statement; match ProcessorID */ + status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer); + if (ACPI_FAILURE(status)) { + printk(KERN_ERR PREFIX "Evaluating processor object\n"); + return -ENODEV; + } + + /* + * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP. + * >>> 'acpi_get_processor_id(acpi_id, &id)' in + * arch/xxx/acpi.c + */ + pr->acpi_id = object.processor.proc_id; + } else { + /* + * Declared with "Device" statement; match _UID. + * Note that we don't handle string _UIDs yet. + */ + unsigned long long value; + status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID, + NULL, &value); + if (ACPI_FAILURE(status)) { + printk(KERN_ERR PREFIX + "Evaluating processor _UID [%#x]\n", status); + return -ENODEV; + } + device_declaration = 1; + pr->acpi_id = value; + } + cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id); + + /* Handle UP system running SMP kernel, with no LAPIC in MADT */ + if (!cpu0_initialized && (cpu_index == -1) && + (num_online_cpus() == 1)) { + cpu_index = 0; + } + + cpu0_initialized = 1; + + pr->id = cpu_index; + + /* + * Extra Processor objects may be enumerated on MP systems with + * less than the max # of CPUs. They should be ignored _iff + * they are physically not present. + */ + if (pr->id == -1) { + if (ACPI_FAILURE + (acpi_processor_hotadd_init(pr->handle, &pr->id))) { + return -ENODEV; + } + } + /* + * On some boxes several processors use the same processor bus id. + * But they are located in different scope. For example: + * \_SB.SCK0.CPU0 + * \_SB.SCK1.CPU0 + * Rename the processor device bus id. And the new bus id will be + * generated as the following format: + * CPU+CPU ID. + */ + sprintf(acpi_device_bid(device), "CPU%X", pr->id); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id, + pr->acpi_id)); + + if (!object.processor.pblk_address) + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n")); + else if (object.processor.pblk_length != 6) + printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n", + object.processor.pblk_length); + else { + pr->throttling.address = object.processor.pblk_address; + pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset; + pr->throttling.duty_width = acpi_gbl_FADT.duty_width; + + pr->pblk = object.processor.pblk_address; + + /* + * We don't care about error returns - we just try to mark + * these reserved so that nobody else is confused into thinking + * that this region might be unused.. + * + * (In particular, allocating the IO range for Cardbus) + */ + request_region(pr->throttling.address, 6, "ACPI CPU throttle"); + } + + /* + * If ACPI describes a slot number for this CPU, we can use it + * ensure we get the right value in the "physical id" field + * of /proc/cpuinfo + */ + status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer); + if (ACPI_SUCCESS(status)) + arch_fix_phys_package_id(pr->id, object.integer.value); + + return 0; +} + +static DEFINE_PER_CPU(void *, processor_device_array); + +static void acpi_processor_notify(struct acpi_device *device, u32 event) +{ + struct acpi_processor *pr = acpi_driver_data(device); + int saved; + + if (!pr) + return; + + switch (event) { + case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: + saved = pr->performance_platform_limit; + acpi_processor_ppc_has_changed(pr, 1); + if (saved == pr->performance_platform_limit) + break; + acpi_bus_generate_proc_event(device, event, + pr->performance_platform_limit); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, + pr->performance_platform_limit); + break; + case ACPI_PROCESSOR_NOTIFY_POWER: + acpi_processor_cst_has_changed(pr); + acpi_bus_generate_proc_event(device, event, 0); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + break; + case ACPI_PROCESSOR_NOTIFY_THROTTLING: + acpi_processor_tstate_has_changed(pr); + acpi_bus_generate_proc_event(device, event, 0); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Unsupported event [0x%x]\n", event)); + break; + } + + return; +} + +static int acpi_cpu_soft_notify(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct acpi_processor *pr = per_cpu(processors, cpu); + + if (action == CPU_ONLINE && pr) { + acpi_processor_ppc_has_changed(pr, 0); + acpi_processor_cst_has_changed(pr); + acpi_processor_tstate_has_changed(pr); + } + return NOTIFY_OK; +} + +static struct notifier_block acpi_cpu_notifier = +{ + .notifier_call = acpi_cpu_soft_notify, +}; + +static int __cpuinit acpi_processor_add(struct acpi_device *device) +{ + struct acpi_processor *pr = NULL; + int result = 0; + struct sys_device *sysdev; + + pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL); + if (!pr) + return -ENOMEM; + + if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { + kfree(pr); + return -ENOMEM; + } + + pr->handle = device->handle; + strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS); + device->driver_data = pr; + + result = acpi_processor_get_info(device); + if (result) { + /* Processor is physically not present */ + return 0; + } + +#ifdef CONFIG_SMP + if (pr->id >= setup_max_cpus && pr->id != 0) + return 0; +#endif + + BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); + + /* + * Buggy BIOS check + * ACPI id of processors can be reported wrongly by the BIOS. + * Don't trust it blindly + */ + if (per_cpu(processor_device_array, pr->id) != NULL && + per_cpu(processor_device_array, pr->id) != device) { + printk(KERN_WARNING "BIOS reported wrong ACPI id " + "for the processor\n"); + result = -ENODEV; + goto err_free_cpumask; + } + per_cpu(processor_device_array, pr->id) = device; + + per_cpu(processors, pr->id) = pr; + + result = acpi_processor_add_fs(device); + if (result) + goto err_free_cpumask; + + sysdev = get_cpu_sysdev(pr->id); + if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) { + result = -EFAULT; + goto err_remove_fs; + } + +#ifdef CONFIG_CPU_FREQ + acpi_processor_ppc_has_changed(pr, 0); +#endif + acpi_processor_get_throttling_info(pr); + acpi_processor_get_limit_info(pr); + + + if (cpuidle_get_driver() == &acpi_idle_driver) + acpi_processor_power_init(pr, device); + + pr->cdev = thermal_cooling_device_register("Processor", device, + &processor_cooling_ops); + if (IS_ERR(pr->cdev)) { + result = PTR_ERR(pr->cdev); + goto err_power_exit; + } + + dev_dbg(&device->dev, "registered as cooling_device%d\n", + pr->cdev->id); + + result = sysfs_create_link(&device->dev.kobj, + &pr->cdev->device.kobj, + "thermal_cooling"); + if (result) { + printk(KERN_ERR PREFIX "Create sysfs link\n"); + goto err_thermal_unregister; + } + result = sysfs_create_link(&pr->cdev->device.kobj, + &device->dev.kobj, + "device"); + if (result) { + printk(KERN_ERR PREFIX "Create sysfs link\n"); + goto err_remove_sysfs; + } + + return 0; + +err_remove_sysfs: + sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); +err_thermal_unregister: + thermal_cooling_device_unregister(pr->cdev); +err_power_exit: + acpi_processor_power_exit(pr, device); +err_remove_fs: + acpi_processor_remove_fs(device); +err_free_cpumask: + free_cpumask_var(pr->throttling.shared_cpu_map); + + return result; +} + +static int acpi_processor_remove(struct acpi_device *device, int type) +{ + struct acpi_processor *pr = NULL; + + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + pr = acpi_driver_data(device); + + if (pr->id >= nr_cpu_ids) + goto free; + + if (type == ACPI_BUS_REMOVAL_EJECT) { + if (acpi_processor_handle_eject(pr)) + return -EINVAL; + } + + acpi_processor_power_exit(pr, device); + + sysfs_remove_link(&device->dev.kobj, "sysdev"); + + acpi_processor_remove_fs(device); + + if (pr->cdev) { + sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); + sysfs_remove_link(&pr->cdev->device.kobj, "device"); + thermal_cooling_device_unregister(pr->cdev); + pr->cdev = NULL; + } + + per_cpu(processors, pr->id) = NULL; + per_cpu(processor_device_array, pr->id) = NULL; + +free: + free_cpumask_var(pr->throttling.shared_cpu_map); + kfree(pr); + + return 0; +} + +#ifdef CONFIG_ACPI_HOTPLUG_CPU +/**************************************************************************** + * Acpi processor hotplug support * + ****************************************************************************/ + +static int is_processor_present(acpi_handle handle) +{ + acpi_status status; + unsigned long long sta = 0; + + + status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); + + if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT)) + return 1; + + /* + * _STA is mandatory for a processor that supports hot plug + */ + if (status == AE_NOT_FOUND) + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Processor does not support hot plug\n")); + else + ACPI_EXCEPTION((AE_INFO, status, + "Processor Device is not present")); + return 0; +} + +static +int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device) +{ + acpi_handle phandle; + struct acpi_device *pdev; + + + if (acpi_get_parent(handle, &phandle)) { + return -ENODEV; + } + + if (acpi_bus_get_device(phandle, &pdev)) { + return -ENODEV; + } + + if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) { + return -ENODEV; + } + + return 0; +} + +static void __ref acpi_processor_hotplug_notify(acpi_handle handle, + u32 event, void *data) +{ + struct acpi_processor *pr; + struct acpi_device *device = NULL; + int result; + + + switch (event) { + case ACPI_NOTIFY_BUS_CHECK: + case ACPI_NOTIFY_DEVICE_CHECK: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Processor driver received %s event\n", + (event == ACPI_NOTIFY_BUS_CHECK) ? + "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK")); + + if (!is_processor_present(handle)) + break; + + if (acpi_bus_get_device(handle, &device)) { + result = acpi_processor_device_add(handle, &device); + if (result) + printk(KERN_ERR PREFIX + "Unable to add the device\n"); + break; + } + break; + case ACPI_NOTIFY_EJECT_REQUEST: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "received ACPI_NOTIFY_EJECT_REQUEST\n")); + + if (acpi_bus_get_device(handle, &device)) { + printk(KERN_ERR PREFIX + "Device don't exist, dropping EJECT\n"); + break; + } + pr = acpi_driver_data(device); + if (!pr) { + printk(KERN_ERR PREFIX + "Driver data is NULL, dropping EJECT\n"); + return; + } + break; + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Unsupported event [0x%x]\n", event)); + break; + } + + return; +} + +static acpi_status +processor_walk_namespace_cb(acpi_handle handle, + u32 lvl, void *context, void **rv) +{ + acpi_status status; + int *action = context; + acpi_object_type type = 0; + + status = acpi_get_type(handle, &type); + if (ACPI_FAILURE(status)) + return (AE_OK); + + if (type != ACPI_TYPE_PROCESSOR) + return (AE_OK); + + switch (*action) { + case INSTALL_NOTIFY_HANDLER: + acpi_install_notify_handler(handle, + ACPI_SYSTEM_NOTIFY, + acpi_processor_hotplug_notify, + NULL); + break; + case UNINSTALL_NOTIFY_HANDLER: + acpi_remove_notify_handler(handle, + ACPI_SYSTEM_NOTIFY, + acpi_processor_hotplug_notify); + break; + default: + break; + } + + return (AE_OK); +} + +static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu) +{ + + if (!is_processor_present(handle)) { + return AE_ERROR; + } + + if (acpi_map_lsapic(handle, p_cpu)) + return AE_ERROR; + + if (arch_register_cpu(*p_cpu)) { + acpi_unmap_lsapic(*p_cpu); + return AE_ERROR; + } + + return AE_OK; +} + +static int acpi_processor_handle_eject(struct acpi_processor *pr) +{ + if (cpu_online(pr->id)) + cpu_down(pr->id); + + arch_unregister_cpu(pr->id); + acpi_unmap_lsapic(pr->id); + return (0); +} +#else +static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu) +{ + return AE_ERROR; +} +static int acpi_processor_handle_eject(struct acpi_processor *pr) +{ + return (-EINVAL); +} +#endif + +static +void acpi_processor_install_hotplug_notify(void) +{ +#ifdef CONFIG_ACPI_HOTPLUG_CPU + int action = INSTALL_NOTIFY_HANDLER; + acpi_walk_namespace(ACPI_TYPE_PROCESSOR, + ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + processor_walk_namespace_cb, NULL, &action, NULL); +#endif + register_hotcpu_notifier(&acpi_cpu_notifier); +} + +static +void acpi_processor_uninstall_hotplug_notify(void) +{ +#ifdef CONFIG_ACPI_HOTPLUG_CPU + int action = UNINSTALL_NOTIFY_HANDLER; + acpi_walk_namespace(ACPI_TYPE_PROCESSOR, + ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + processor_walk_namespace_cb, NULL, &action, NULL); +#endif + unregister_hotcpu_notifier(&acpi_cpu_notifier); +} + +/* + * We keep the driver loaded even when ACPI is not running. + * This is needed for the powernow-k8 driver, that works even without + * ACPI, but needs symbols from this driver + */ + +static int __init acpi_processor_init(void) +{ + int result = 0; + + if (acpi_disabled) + return 0; + + memset(&errata, 0, sizeof(errata)); + +#ifdef CONFIG_ACPI_PROCFS + acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir); + if (!acpi_processor_dir) + return -ENOMEM; +#endif + + if (!cpuidle_register_driver(&acpi_idle_driver)) { + printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n", + acpi_idle_driver.name); + } else { + printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s", + cpuidle_get_driver()->name); + } + + result = acpi_bus_register_driver(&acpi_processor_driver); + if (result < 0) + goto out_cpuidle; + + acpi_processor_install_hotplug_notify(); + + acpi_thermal_cpufreq_init(); + + acpi_processor_ppc_init(); + + acpi_processor_throttling_init(); + + return 0; + +out_cpuidle: + cpuidle_unregister_driver(&acpi_idle_driver); + +#ifdef CONFIG_ACPI_PROCFS + remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); +#endif + + return result; +} + +static void __exit acpi_processor_exit(void) +{ + if (acpi_disabled) + return; + + acpi_processor_ppc_exit(); + + acpi_thermal_cpufreq_exit(); + + acpi_processor_uninstall_hotplug_notify(); + + acpi_bus_unregister_driver(&acpi_processor_driver); + + cpuidle_unregister_driver(&acpi_idle_driver); + +#ifdef CONFIG_ACPI_PROCFS + remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); +#endif + + return; +} + +module_init(acpi_processor_init); +module_exit(acpi_processor_exit); + +EXPORT_SYMBOL(acpi_processor_set_thermal_limit); + +MODULE_ALIAS("processor"); diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index cc978a8c00b7..e9a8026d39f0 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -32,6 +32,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/cpufreq.h> +#include <linux/slab.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/acpi.h> @@ -75,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; module_param(max_cstate, uint, 0000); static unsigned int nocst __read_mostly; module_param(nocst, uint, 0000); +static int bm_check_disable __read_mostly; +module_param(bm_check_disable, uint, 0000); static unsigned int latency_factor __read_mostly = 2; module_param(latency_factor, uint, 0644); -static s64 us_to_pm_timer_ticks(s64 t) +#ifdef CONFIG_ACPI_PROCFS +static u64 us_to_pm_timer_ticks(s64 t) { return div64_u64(t * PM_TIMER_FREQUENCY, 1000000); } +#endif + /* * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3. * For now disable this. Probably a bug somewhere else. @@ -360,7 +366,7 @@ static int acpi_processor_get_power_info_default(struct acpi_processor *pr) static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) { acpi_status status = 0; - acpi_integer count; + u64 count; int current_count; int i; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -697,7 +703,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) "max_cstate: C%d\n" "maximum allowed latency: %d usec\n", pr->power.state ? pr->power.state - pr->power.states : 0, - max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)); + max_cstate, pm_qos_request(PM_QOS_CPU_DMA_LATENCY)); seq_puts(seq, "states:\n"); @@ -726,24 +732,14 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) break; } - if (pr->power.states[i].promotion.state) - seq_printf(seq, "promotion[C%zd] ", - (pr->power.states[i].promotion.state - - pr->power.states)); - else - seq_puts(seq, "promotion[--] "); - - if (pr->power.states[i].demotion.state) - seq_printf(seq, "demotion[C%zd] ", - (pr->power.states[i].demotion.state - - pr->power.states)); - else - seq_puts(seq, "demotion[--] "); - - seq_printf(seq, "latency[%03d] usage[%08d] duration[%020llu]\n", + seq_puts(seq, "promotion[--] "); + + seq_puts(seq, "demotion[--] "); + + seq_printf(seq, "latency[%03d] usage[%08d] duration[%020Lu]\n", pr->power.states[i].latency, pr->power.states[i].usage, - (unsigned long long)pr->power.states[i].time); + us_to_pm_timer_ticks(pr->power.states[i].time)); } end: @@ -772,6 +768,9 @@ static int acpi_idle_bm_check(void) { u32 bm_status = 0; + if (bm_check_disable) + return 0; + acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); if (bm_status) acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1); @@ -868,8 +867,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, struct acpi_processor *pr; struct acpi_processor_cx *cx = cpuidle_get_statedata(state); ktime_t kt1, kt2; + s64 idle_time_ns; s64 idle_time; - s64 sleep_ticks = 0; pr = __get_cpu_var(processors); @@ -880,6 +879,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, return(acpi_idle_enter_c1(dev, state)); local_irq_disable(); + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* @@ -887,12 +887,12 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, * NEED_RESCHED: */ smp_mb(); - } - if (unlikely(need_resched())) { - current_thread_info()->status |= TS_POLLING; - local_irq_enable(); - return 0; + if (unlikely(need_resched())) { + current_thread_info()->status |= TS_POLLING; + local_irq_enable(); + return 0; + } } /* @@ -909,20 +909,21 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, sched_clock_idle_sleep_event(); acpi_idle_do_entry(cx); kt2 = ktime_get_real(); - idle_time = ktime_to_us(ktime_sub(kt2, kt1)); - - sleep_ticks = us_to_pm_timer_ticks(idle_time); + idle_time_ns = ktime_to_ns(ktime_sub(kt2, kt1)); + idle_time = idle_time_ns; + do_div(idle_time, NSEC_PER_USEC); /* Tell the scheduler how much we idled: */ - sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS); + sched_clock_idle_wakeup_event(idle_time_ns); local_irq_enable(); - current_thread_info()->status |= TS_POLLING; + if (cx->entry_method != ACPI_CSTATE_FFH) + current_thread_info()->status |= TS_POLLING; cx->usage++; lapic_timer_state_broadcast(pr, cx, 0); - cx->time += sleep_ticks; + cx->time += idle_time; return idle_time; } @@ -942,8 +943,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, struct acpi_processor *pr; struct acpi_processor_cx *cx = cpuidle_get_statedata(state); ktime_t kt1, kt2; + s64 idle_time_ns; s64 idle_time; - s64 sleep_ticks = 0; pr = __get_cpu_var(processors); @@ -954,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (acpi_idle_suspend) return(acpi_idle_enter_c1(dev, state)); - if (acpi_idle_bm_check()) { + if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (dev->safe_state) { dev->last_state = dev->safe_state; return dev->safe_state->enter(dev, dev->safe_state); @@ -967,6 +968,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, } local_irq_disable(); + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* @@ -974,12 +976,12 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, * NEED_RESCHED: */ smp_mb(); - } - if (unlikely(need_resched())) { - current_thread_info()->status |= TS_POLLING; - local_irq_enable(); - return 0; + if (unlikely(need_resched())) { + current_thread_info()->status |= TS_POLLING; + local_irq_enable(); + return 0; + } } acpi_unlazy_tlb(smp_processor_id()); @@ -1024,19 +1026,21 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, spin_unlock(&c3_lock); } kt2 = ktime_get_real(); - idle_time = ktime_to_us(ktime_sub(kt2, kt1)); + idle_time_ns = ktime_to_ns(ktime_sub(kt2, kt1)); + idle_time = idle_time_ns; + do_div(idle_time, NSEC_PER_USEC); - sleep_ticks = us_to_pm_timer_ticks(idle_time); /* Tell the scheduler how much we idled: */ - sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS); + sched_clock_idle_wakeup_event(idle_time_ns); local_irq_enable(); - current_thread_info()->status |= TS_POLLING; + if (cx->entry_method != ACPI_CSTATE_FFH) + current_thread_info()->status |= TS_POLLING; cx->usage++; lapic_timer_state_broadcast(pr, cx, 0); - cx->time += sleep_ticks; + cx->time += idle_time; return idle_time; } diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c deleted file mode 100644 index e306ba9aa34e..000000000000 --- a/drivers/acpi/processor_pdc.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Copyright (C) 2005 Intel Corporation - * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. - * - * Alex Chiang <achiang@hp.com> - * - Unified x86/ia64 implementations - * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> - * - Added _PDC for platforms with Intel CPUs - */ -#include <linux/dmi.h> - -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - -#include "internal.h" - -#define PREFIX "ACPI: " -#define _COMPONENT ACPI_PROCESSOR_COMPONENT -ACPI_MODULE_NAME("processor_pdc"); - -static int set_no_mwait(const struct dmi_system_id *id) -{ - printk(KERN_NOTICE PREFIX "%s detected - " - "disabling mwait for CPU C-states\n", id->ident); - idle_nomwait = 1; - return 0; -} - -static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = { - { - set_no_mwait, "IFL91 board", { - DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), - DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"), - DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL}, - { - set_no_mwait, "Extensa 5220", { - DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), - DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, - {}, -}; - -static void acpi_set_pdc_bits(u32 *buf) -{ - buf[0] = ACPI_PDC_REVISION_ID; - buf[1] = 1; - - /* Enable coordination with firmware's _TSD info */ - buf[2] = ACPI_PDC_SMP_T_SWCOORD; - - /* Twiddle arch-specific bits needed for _PDC */ - arch_acpi_set_pdc_bits(buf); -} - -static struct acpi_object_list *acpi_processor_alloc_pdc(void) -{ - struct acpi_object_list *obj_list; - union acpi_object *obj; - u32 *buf; - - /* allocate and initialize pdc. It will be used later. */ - obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); - if (!obj_list) { - printk(KERN_ERR "Memory allocation error\n"); - return NULL; - } - - obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); - if (!obj) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj_list); - return NULL; - } - - buf = kmalloc(12, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj); - kfree(obj_list); - return NULL; - } - - acpi_set_pdc_bits(buf); - - obj->type = ACPI_TYPE_BUFFER; - obj->buffer.length = 12; - obj->buffer.pointer = (u8 *) buf; - obj_list->count = 1; - obj_list->pointer = obj; - - return obj_list; -} - -/* - * _PDC is required for a BIOS-OS handshake for most of the newer - * ACPI processor features. - */ -static int -acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in) -{ - acpi_status status = AE_OK; - - if (idle_nomwait) { - /* - * If mwait is disabled for CPU C-states, the C2C3_FFH access - * mode will be disabled in the parameter of _PDC object. - * Of course C1_FFH access mode will also be disabled. - */ - union acpi_object *obj; - u32 *buffer = NULL; - - obj = pdc_in->pointer; - buffer = (u32 *)(obj->buffer.pointer); - buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH); - - } - status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL); - - if (ACPI_FAILURE(status)) - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Could not evaluate _PDC, using legacy perf. control.\n")); - - return status; -} - -static int early_pdc_done; - -void acpi_processor_set_pdc(acpi_handle handle) -{ - struct acpi_object_list *obj_list; - - if (arch_has_acpi_pdc() == false) - return; - - if (early_pdc_done) - return; - - obj_list = acpi_processor_alloc_pdc(); - if (!obj_list) - return; - - acpi_processor_eval_pdc(handle, obj_list); - - kfree(obj_list->pointer->buffer.pointer); - kfree(obj_list->pointer); - kfree(obj_list); -} -EXPORT_SYMBOL_GPL(acpi_processor_set_pdc); - -static int early_pdc_optin; -static int set_early_pdc_optin(const struct dmi_system_id *id) -{ - early_pdc_optin = 1; - return 0; -} - -static int param_early_pdc_optin(char *s) -{ - early_pdc_optin = 1; - return 1; -} -__setup("acpi_early_pdc_eval", param_early_pdc_optin); - -static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = { - { - set_early_pdc_optin, "HP Envy", { - DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Envy") }, NULL}, - { - set_early_pdc_optin, "HP Pavilion dv6", { - DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6") }, NULL}, - { - set_early_pdc_optin, "HP Pavilion dv7", { - DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7") }, NULL}, - {}, -}; - -static acpi_status -early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv) -{ - acpi_processor_set_pdc(handle); - return AE_OK; -} - -void __init acpi_early_processor_set_pdc(void) -{ - /* - * Check whether the system is DMI table. If yes, OSPM - * should not use mwait for CPU-states. - */ - dmi_check_system(processor_idle_dmi_table); - - /* - * Allow systems to opt-in to early _PDC evaluation. - */ - dmi_check_system(early_pdc_optin_table); - if (!early_pdc_optin) - return; - - acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, - early_init_pdc, NULL, NULL, NULL); - - early_pdc_done = 1; -} diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index a959f6a07508..ba1bd263d903 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -30,6 +30,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/cpufreq.h> +#include <linux/slab.h> #ifdef CONFIG_X86 #include <asm/cpufeature.h> @@ -561,7 +562,7 @@ end: } int acpi_processor_preregister_performance( - struct acpi_processor_performance *performance) + struct acpi_processor_performance __percpu *performance) { int count, count_target; int retval = 0; diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 1c5d7a8b2fdf..9ade1a5b32ed 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -28,6 +28,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/cpufreq.h> @@ -660,7 +661,7 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr) #ifdef CONFIG_X86 static int acpi_throttling_rdmsr(struct acpi_processor *pr, - acpi_integer * value) + u64 *value) { struct cpuinfo_x86 *c; u64 msr_high, msr_low; @@ -681,13 +682,13 @@ static int acpi_throttling_rdmsr(struct acpi_processor *pr, rdmsr_safe(MSR_IA32_THERM_CONTROL, (u32 *)&msr_low , (u32 *) &msr_high); msr = (msr_high << 32) | msr_low; - *value = (acpi_integer) msr; + *value = (u64) msr; ret = 0; } return ret; } -static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value) +static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value) { struct cpuinfo_x86 *c; unsigned int cpu; @@ -711,14 +712,14 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value) } #else static int acpi_throttling_rdmsr(struct acpi_processor *pr, - acpi_integer * value) + u64 *value) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); return -1; } -static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value) +static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); @@ -727,7 +728,7 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value) #endif static int acpi_read_throttling_status(struct acpi_processor *pr, - acpi_integer *value) + u64 *value) { u32 bit_width, bit_offset; u64 ptc_value; @@ -746,7 +747,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr, address, (u32 *) &ptc_value, (u32) (bit_width + bit_offset)); ptc_mask = (1 << bit_width) - 1; - *value = (acpi_integer) ((ptc_value >> bit_offset) & ptc_mask); + *value = (u64) ((ptc_value >> bit_offset) & ptc_mask); ret = 0; break; case ACPI_ADR_SPACE_FIXED_HARDWARE: @@ -760,7 +761,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr, } static int acpi_write_throttling_state(struct acpi_processor *pr, - acpi_integer value) + u64 value) { u32 bit_width, bit_offset; u64 ptc_value; @@ -793,7 +794,7 @@ static int acpi_write_throttling_state(struct acpi_processor *pr, } static int acpi_get_throttling_state(struct acpi_processor *pr, - acpi_integer value) + u64 value) { int i; @@ -808,7 +809,7 @@ static int acpi_get_throttling_state(struct acpi_processor *pr, } static int acpi_get_throttling_value(struct acpi_processor *pr, - int state, acpi_integer *value) + int state, u64 *value) { int ret = -1; @@ -826,7 +827,7 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) { int state = 0; int ret; - acpi_integer value; + u64 value; if (!pr) return -EINVAL; @@ -993,7 +994,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, int state, bool force) { int ret; - acpi_integer value; + u64 value; if (!pr) return -EINVAL; @@ -1133,9 +1134,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) int result = 0; struct acpi_processor_throttling *pthrottling; - if (!pr) - return -EINVAL; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n", pr->throttling.address, diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index b16ddbf23a9c..4ff76e8174eb 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -25,6 +25,7 @@ */ #include <linux/init.h> +#include <linux/slab.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> @@ -217,6 +218,9 @@ static int acpi_sbs_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = acpi_battery_technology(battery); break; + case POWER_SUPPLY_PROP_CYCLE_COUNT: + val->intval = battery->cycle_count; + break; case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: val->intval = battery->design_voltage * acpi_battery_vscale(battery) * 1000; @@ -276,6 +280,7 @@ static enum power_supply_property sbs_charge_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CYCLE_COUNT, POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_NOW, @@ -560,6 +565,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) battery->design_voltage * acpi_battery_vscale(battery)); seq_printf(seq, "design capacity warning: unknown\n"); seq_printf(seq, "design capacity low: unknown\n"); + seq_printf(seq, "cycle count: %i\n", battery->cycle_count); seq_printf(seq, "capacity granularity 1: unknown\n"); seq_printf(seq, "capacity granularity 2: unknown\n"); seq_printf(seq, "model number: %s\n", battery->device_name); diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index fd09229282ea..f8be23b6c129 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -11,13 +11,14 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> #include <linux/wait.h> +#include <linux/slab.h> #include <linux/delay.h> #include <linux/interrupt.h> #include "sbshc.h" #define PREFIX "ACPI: " -#define ACPI_SMB_HC_CLASS "smbus_host_controller" +#define ACPI_SMB_HC_CLASS "smbus_host_ctl" #define ACPI_SMB_HC_DEVICE_NAME "ACPI SMBus HC" struct acpi_smb_hc { diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 3e009674f333..7f2e051ed4f1 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -4,10 +4,12 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/acpi.h> #include <linux/signal.h> #include <linux/kthread.h> +#include <linux/dmi.h> #include <acpi/acpi_drivers.h> @@ -741,19 +743,40 @@ acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device, return AE_OK; } -static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device) +static void acpi_bus_set_run_wake_flags(struct acpi_device *device) { - acpi_status status = 0; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object *package = NULL; - int psw_error; - struct acpi_device_id button_device_ids[] = { {"PNP0C0D", 0}, {"PNP0C0C", 0}, {"PNP0C0E", 0}, {"", 0}, }; + acpi_status status; + acpi_event_status event_status; + + device->wakeup.run_wake_count = 0; + device->wakeup.flags.notifier_present = 0; + + /* Power button, Lid switch always enable wakeup */ + if (!acpi_match_device_ids(device, button_device_ids)) { + device->wakeup.flags.run_wake = 1; + device->wakeup.flags.always_enabled = 1; + return; + } + + status = acpi_get_gpe_status(NULL, device->wakeup.gpe_number, + &event_status); + if (status == AE_OK) + device->wakeup.flags.run_wake = + !!(event_status & ACPI_EVENT_FLAG_HANDLE); +} + +static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device) +{ + acpi_status status = 0; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *package = NULL; + int psw_error; /* _PRW */ status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer); @@ -773,6 +796,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device) device->wakeup.flags.valid = 1; device->wakeup.prepare_count = 0; + acpi_bus_set_run_wake_flags(device); /* Call _PSW/_DSW object to disable its ability to wake the sleeping * system for the ACPI device with the _PRW object. * The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW. @@ -784,10 +808,6 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "error in _DSW or _PSW evaluation\n")); - /* Power button, Lid switch always enable wakeup */ - if (!acpi_match_device_ids(device, button_device_ids)) - device->wakeup.flags.run_wake = 1; - end: if (ACPI_FAILURE(status)) device->flags.wake_capable = 0; @@ -1014,6 +1034,41 @@ static void acpi_add_id(struct acpi_device *device, const char *dev_id) list_add_tail(&id->list, &device->pnp.ids); } +/* + * Old IBM workstations have a DSDT bug wherein the SMBus object + * lacks the SMBUS01 HID and the methods do not have the necessary "_" + * prefix. Work around this. + */ +static int acpi_ibm_smbus_match(struct acpi_device *device) +{ + acpi_handle h_dummy; + struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; + int result; + + if (!dmi_name_in_vendors("IBM")) + return -ENODEV; + + /* Look for SMBS object */ + result = acpi_get_name(device->handle, ACPI_SINGLE_NAME, &path); + if (result) + return result; + + if (strcmp("SMBS", path.pointer)) { + result = -ENODEV; + goto out; + } + + /* Does it have the necessary (but misnamed) methods? */ + result = -ENODEV; + if (ACPI_SUCCESS(acpi_get_handle(device->handle, "SBI", &h_dummy)) && + ACPI_SUCCESS(acpi_get_handle(device->handle, "SBR", &h_dummy)) && + ACPI_SUCCESS(acpi_get_handle(device->handle, "SBW", &h_dummy))) + result = 0; +out: + kfree(path.pointer); + return result; +} + static void acpi_device_set_id(struct acpi_device *device) { acpi_status status; @@ -1026,12 +1081,6 @@ static void acpi_device_set_id(struct acpi_device *device) if (ACPI_IS_ROOT_DEVICE(device)) { acpi_add_id(device, ACPI_SYSTEM_HID); break; - } else if (ACPI_IS_ROOT_DEVICE(device->parent)) { - /* \_SB_, the only root-level namespace device */ - acpi_add_id(device, ACPI_BUS_HID); - strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); - strcpy(device->pnp.device_class, ACPI_BUS_CLASS); - break; } status = acpi_get_object_info(device->handle, &info); @@ -1064,6 +1113,14 @@ static void acpi_device_set_id(struct acpi_device *device) acpi_add_id(device, ACPI_BAY_HID); else if (ACPI_SUCCESS(acpi_dock_match(device))) acpi_add_id(device, ACPI_DOCK_HID); + else if (!acpi_ibm_smbus_match(device)) + acpi_add_id(device, ACPI_SMBUS_IBM_HID); + else if (!acpi_device_hid(device) && + ACPI_IS_ROOT_DEVICE(device->parent)) { + acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ + strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); + strcpy(device->pnp.device_class, ACPI_BUS_CLASS); + } break; case ACPI_BUS_TYPE_POWER: diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 79d33d908b5a..2862c781b372 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -80,21 +80,19 @@ static int acpi_sleep_prepare(u32 acpi_state) #ifdef CONFIG_ACPI_SLEEP static u32 acpi_target_sleep_state = ACPI_STATE_S0; + /* - * According to the ACPI specification the BIOS should make sure that ACPI is - * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, - * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI - * on such systems during resume. Unfortunately that doesn't help in - * particularly pathological cases in which SCI_EN has to be set directly on - * resume, although the specification states very clearly that this flag is - * owned by the hardware. The set_sci_en_on_resume variable will be set in such - * cases. + * The ACPI specification wants us to save NVS memory regions during hibernation + * and to restore them during the subsequent resume. Windows does that also for + * suspend to RAM. However, it is known that this mechanism does not work on + * all machines, so we allow the user to disable it with the help of the + * 'acpi_sleep=nonvs' kernel command line option. */ -static bool set_sci_en_on_resume; +static bool nvs_nosave; -void __init acpi_set_sci_en_on_resume(void) +void __init acpi_nvs_nosave(void) { - set_sci_en_on_resume = true; + nvs_nosave = true; } /* @@ -110,11 +108,13 @@ void __init acpi_old_suspend_ordering(void) } /** - * acpi_pm_disable_gpes - Disable the GPEs. + * acpi_pm_freeze - Disable the GPEs and suspend EC transactions. */ -static int acpi_pm_disable_gpes(void) +static int acpi_pm_freeze(void) { acpi_disable_all_gpes(); + acpi_os_wait_events_complete(NULL); + acpi_ec_block_transactions(); return 0; } @@ -128,6 +128,8 @@ static int __acpi_pm_prepare(void) { int error = acpi_sleep_prepare(acpi_target_sleep_state); + suspend_nvs_save(); + if (error) acpi_target_sleep_state = ACPI_STATE_S0; return error; @@ -142,7 +144,8 @@ static int acpi_pm_prepare(void) int error = __acpi_pm_prepare(); if (!error) - acpi_disable_all_gpes(); + acpi_pm_freeze(); + return error; } @@ -156,6 +159,9 @@ static void acpi_pm_finish(void) { u32 acpi_state = acpi_target_sleep_state; + suspend_nvs_free(); + acpi_ec_unblock_transactions(); + if (acpi_state == ACPI_STATE_S0) return; @@ -205,6 +211,10 @@ static int acpi_suspend_begin(suspend_state_t pm_state) u32 acpi_state = acpi_suspend_states[pm_state]; int error = 0; + error = nvs_nosave ? 0 : suspend_nvs_alloc(); + if (error) + return error; + if (sleep_states[acpi_state]) { acpi_target_sleep_state = acpi_state; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -253,11 +263,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state) break; } - /* If ACPI is not enabled by the BIOS, we need to enable it here. */ - if (set_sci_en_on_resume) - acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1); - else - acpi_enable(); + /* This violates the spec but is required for bug compatibility. */ + acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1); /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(acpi_state); @@ -275,6 +282,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state) * acpi_leave_sleep_state will reenable specific GPEs later */ acpi_disable_all_gpes(); + /* Allow EC transactions to happen. */ + acpi_ec_unblock_transactions_early(); local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); @@ -283,9 +292,16 @@ static int acpi_suspend_enter(suspend_state_t pm_state) if (acpi_state == ACPI_STATE_S3) acpi_restore_state_mem(); + suspend_nvs_restore(); + return ACPI_SUCCESS(status) ? 0 : -EFAULT; } +static void acpi_suspend_finish(void) +{ + acpi_pm_finish(); +} + static int acpi_suspend_state_valid(suspend_state_t pm_state) { u32 acpi_state; @@ -307,7 +323,7 @@ static struct platform_suspend_ops acpi_suspend_ops = { .begin = acpi_suspend_begin, .prepare_late = acpi_pm_prepare, .enter = acpi_suspend_enter, - .wake = acpi_pm_finish, + .wake = acpi_suspend_finish, .end = acpi_pm_end, }; @@ -333,9 +349,9 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state) static struct platform_suspend_ops acpi_suspend_ops_old = { .valid = acpi_suspend_state_valid, .begin = acpi_suspend_begin_old, - .prepare_late = acpi_pm_disable_gpes, + .prepare_late = acpi_pm_freeze, .enter = acpi_suspend_enter, - .wake = acpi_pm_finish, + .wake = acpi_suspend_finish, .end = acpi_pm_end, .recover = acpi_pm_finish, }; @@ -346,12 +362,6 @@ static int __init init_old_suspend_ordering(const struct dmi_system_id *d) return 0; } -static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d) -{ - set_sci_en_on_resume = true; - return 0; -} - static struct dmi_system_id __initdata acpisleep_dmi_table[] = { { .callback = init_old_suspend_ordering, @@ -370,22 +380,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, }, { - .callback = init_set_sci_en_on_resume, - .ident = "Apple MacBook 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Apple MacMini 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), - }, - }, - { .callback = init_old_suspend_ordering, .ident = "Asus Pundit P1-AH2 (M2N8L motherboard)", .matches = { @@ -394,62 +388,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, }, { - .callback = init_set_sci_en_on_resume, - .ident = "Toshiba Satellite L300", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), - DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard HP G7000 Notebook PC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP G7000 Notebook PC"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard HP Pavilion dv3 Notebook PC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv3 Notebook PC"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard Pavilion dv4", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard Pavilion dv7", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard Compaq Presario C700 Notebook PC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario C700 Notebook PC"), - }, - }, - { - .callback = init_set_sci_en_on_resume, - .ident = "Hewlett-Packard Compaq Presario CQ40 Notebook PC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario CQ40 Notebook PC"), - }, - }, - { .callback = init_old_suspend_ordering, .ident = "Panasonic CF51-2L", .matches = { @@ -463,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { #endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATION -/* - * The ACPI specification wants us to save NVS memory regions during hibernation - * and to restore them during the subsequent resume. However, it is not certain - * if this mechanism is going to work on all machines, so we allow the user to - * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line - * option. - */ -static bool s4_no_nvs; - -void __init acpi_s4_no_nvs(void) -{ - s4_no_nvs = true; -} - static unsigned long s4_hardware_signature; static struct acpi_table_facs *facs; static bool nosigcheck; @@ -490,7 +414,7 @@ static int acpi_hibernation_begin(void) { int error; - error = s4_no_nvs ? 0 : hibernate_nvs_alloc(); + error = nvs_nosave ? 0 : suspend_nvs_alloc(); if (!error) { acpi_target_sleep_state = ACPI_STATE_S4; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -504,7 +428,7 @@ static int acpi_hibernation_pre_snapshot(void) int error = acpi_pm_prepare(); if (!error) - hibernate_nvs_save(); + suspend_nvs_save(); return error; } @@ -527,12 +451,6 @@ static int acpi_hibernation_enter(void) return ACPI_SUCCESS(status) ? 0 : -EFAULT; } -static void acpi_hibernation_finish(void) -{ - hibernate_nvs_free(); - acpi_pm_finish(); -} - static void acpi_hibernation_leave(void) { /* @@ -549,11 +467,14 @@ static void acpi_hibernation_leave(void) panic("ACPI S4 hardware signature mismatch"); } /* Restore the NVS memory area */ - hibernate_nvs_restore(); + suspend_nvs_restore(); + /* Allow EC transactions to happen. */ + acpi_ec_unblock_transactions_early(); } -static void acpi_pm_enable_gpes(void) +static void acpi_pm_thaw(void) { + acpi_ec_unblock_transactions(); acpi_enable_all_runtime_gpes(); } @@ -561,12 +482,12 @@ static struct platform_hibernation_ops acpi_hibernation_ops = { .begin = acpi_hibernation_begin, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot, - .finish = acpi_hibernation_finish, + .finish = acpi_pm_finish, .prepare = acpi_pm_prepare, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, - .pre_restore = acpi_pm_disable_gpes, - .restore_cleanup = acpi_pm_enable_gpes, + .pre_restore = acpi_pm_freeze, + .restore_cleanup = acpi_pm_thaw, }; /** @@ -588,8 +509,8 @@ static int acpi_hibernation_begin_old(void) error = acpi_sleep_prepare(ACPI_STATE_S4); if (!error) { - if (!s4_no_nvs) - error = hibernate_nvs_alloc(); + if (!nvs_nosave) + error = suspend_nvs_alloc(); if (!error) acpi_target_sleep_state = ACPI_STATE_S4; } @@ -598,12 +519,9 @@ static int acpi_hibernation_begin_old(void) static int acpi_hibernation_pre_snapshot_old(void) { - int error = acpi_pm_disable_gpes(); - - if (!error) - hibernate_nvs_save(); - - return error; + acpi_pm_freeze(); + suspend_nvs_save(); + return 0; } /* @@ -614,12 +532,12 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = { .begin = acpi_hibernation_begin_old, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot_old, - .finish = acpi_hibernation_finish, - .prepare = acpi_pm_disable_gpes, + .prepare = acpi_pm_freeze, + .finish = acpi_pm_finish, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, - .pre_restore = acpi_pm_disable_gpes, - .restore_cleanup = acpi_pm_enable_gpes, + .pre_restore = acpi_pm_freeze, + .restore_cleanup = acpi_pm_thaw, .recover = acpi_pm_finish, }; #endif /* CONFIG_HIBERNATION */ @@ -745,9 +663,18 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) return -ENODEV; } - error = enable ? - acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) : - acpi_disable_wakeup_device_power(adev); + if (enable) { + error = acpi_enable_wakeup_device_power(adev, + acpi_target_sleep_state); + if (!error) + acpi_enable_gpe(adev->wakeup.gpe_device, + adev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); + } else { + acpi_disable_gpe(adev->wakeup.gpe_device, adev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); + error = acpi_disable_wakeup_device_power(adev); + } if (!error) dev_info(dev, "wake-up capability %s by ACPI\n", enable ? "enabled" : "disabled"); diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h index 8a8f3b3382a6..25b8bd149284 100644 --- a/drivers/acpi/sleep.h +++ b/drivers/acpi/sleep.h @@ -1,6 +1,6 @@ extern u8 sleep_states[]; -extern int acpi_suspend (u32 state); +extern int acpi_suspend(u32 state); extern void acpi_enable_wakeup_device_prep(u8 sleep_state); extern void acpi_enable_wakeup_device(u8 sleep_state); diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index d11282975f35..f8db50a0941c 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -25,6 +25,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/string.h> #include <asm/uaccess.h> @@ -70,7 +71,7 @@ struct acpi_table_attr { struct list_head node; }; -static ssize_t acpi_table_show(struct kobject *kobj, +static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t offset, size_t count) { @@ -101,6 +102,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, struct acpi_table_header *header = NULL; struct acpi_table_attr *attr = NULL; + sysfs_attr_init(&table_attr->attr.attr); if (table_header->signature[0] != '\0') memcpy(table_attr->name, table_header->signature, ACPI_NAME_SIZE); @@ -301,8 +303,7 @@ static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle) "Invalid GPE 0x%x\n", index)); goto end; } - result = acpi_get_gpe_status(*handle, index, - ACPI_NOT_ISR, status); + result = acpi_get_gpe_status(*handle, index, status); } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS)) result = acpi_get_event_status(index - num_gpes, status); @@ -387,13 +388,15 @@ static ssize_t counter_set(struct kobject *kobj, if (index < num_gpes) { if (!strcmp(buf, "disable\n") && (status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_disable_gpe(handle, index); + result = acpi_disable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "enable\n") && !(status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_enable_gpe(handle, index); + result = acpi_enable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "clear\n") && (status & ACPI_EVENT_FLAG_SET)) - result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR); + result = acpi_clear_gpe(handle, index); else all_counters[index].count = strtoul(buf, NULL, 0); } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) { @@ -475,6 +478,7 @@ void acpi_irq_stats_init(void) goto fail; strncpy(name, buffer, strlen(buffer) + 1); + sysfs_attr_init(&counter_attrs[i].attr); counter_attrs[i].attr.name = name; counter_attrs[i].attr.mode = 0644; counter_attrs[i].show = counter_show; diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 8a0ed2800e63..f336bca7c450 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -213,7 +213,7 @@ acpi_table_parse_entries(char *id, unsigned long table_end; acpi_size tbl_size; - if (acpi_disabled && !acpi_ht) + if (acpi_disabled) return -ENODEV; if (!handler) @@ -280,7 +280,7 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler) struct acpi_table_header *table = NULL; acpi_size tbl_size; - if (acpi_disabled && !acpi_ht) + if (acpi_disabled) return -ENODEV; if (!handler) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 9073ada88835..efad1f33aeb5 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -35,6 +35,7 @@ #include <linux/module.h> #include <linux/dmi.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/types.h> #include <linux/proc_fs.h> #include <linux/jiffies.h> @@ -368,7 +369,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) int valid = 0; int i; - /* Critical Shutdown (required) */ + /* Critical Shutdown */ if (flag & ACPI_TRIPS_CRITICAL) { status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL, &tmp); @@ -379,17 +380,19 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) * Below zero (Celsius) values clearly aren't right for sure.. * ... so lets discard those as invalid. */ - if (ACPI_FAILURE(status) || - tz->trips.critical.temperature <= 2732) { + if (ACPI_FAILURE(status)) { + tz->trips.critical.flags.valid = 0; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "No critical threshold\n")); + } else if (tmp <= 2732) { + printk(KERN_WARNING FW_BUG "Invalid critical threshold " + "(%llu)\n", tmp); tz->trips.critical.flags.valid = 0; - ACPI_EXCEPTION((AE_INFO, status, - "No or invalid critical threshold")); - return -ENODEV; } else { tz->trips.critical.flags.valid = 1; ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Found critical threshold [%lu]\n", - tz->trips.critical.temperature)); + "Found critical threshold [%lu]\n", + tz->trips.critical.temperature)); } if (tz->trips.critical.flags.valid == 1) { if (crt == -1) { @@ -575,7 +578,23 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) { - return acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT); + int i, valid, ret = acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT); + + if (ret) + return ret; + + valid = tz->trips.critical.flags.valid | + tz->trips.hot.flags.valid | + tz->trips.passive.flags.valid; + + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) + valid |= tz->trips.active[i].flags.valid; + + if (!valid) { + printk(KERN_WARNING FW_BUG "No valid trip found\n"); + return -ENODEV; + } + return 0; } static void acpi_thermal_check(void *data) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 811fec10462b..b002a471c5d4 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -25,6 +25,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/types.h> #include <acpi/acpi_bus.h> @@ -107,12 +108,12 @@ acpi_extract_package(union acpi_object *package, case ACPI_TYPE_INTEGER: switch (format_string[i]) { case 'N': - size_required += sizeof(acpi_integer); - tail_offset += sizeof(acpi_integer); + size_required += sizeof(u64); + tail_offset += sizeof(u64); break; case 'S': size_required += - sizeof(char *) + sizeof(acpi_integer) + + sizeof(char *) + sizeof(u64) + sizeof(char); tail_offset += sizeof(char *); break; @@ -193,17 +194,17 @@ acpi_extract_package(union acpi_object *package, case ACPI_TYPE_INTEGER: switch (format_string[i]) { case 'N': - *((acpi_integer *) head) = + *((u64 *) head) = element->integer.value; - head += sizeof(acpi_integer); + head += sizeof(u64); break; case 'S': pointer = (u8 **) head; *pointer = tail; - *((acpi_integer *) tail) = + *((u64 *) tail) = element->integer.value; - head += sizeof(acpi_integer *); - tail += sizeof(acpi_integer); + head += sizeof(u64 *); + tail += sizeof(u64); /* NULL terminate string */ *tail = (char)0; tail += sizeof(char); @@ -289,51 +290,6 @@ acpi_evaluate_integer(acpi_handle handle, EXPORT_SYMBOL(acpi_evaluate_integer); -#if 0 -acpi_status -acpi_evaluate_string(acpi_handle handle, - acpi_string pathname, - acpi_object_list * arguments, acpi_string * data) -{ - acpi_status status = AE_OK; - acpi_object *element = NULL; - acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - - - if (!data) - return AE_BAD_PARAMETER; - - status = acpi_evaluate_object(handle, pathname, arguments, &buffer); - if (ACPI_FAILURE(status)) { - acpi_util_eval_error(handle, pathname, status); - return status; - } - - element = (acpi_object *) buffer.pointer; - - if ((element->type != ACPI_TYPE_STRING) - || (element->type != ACPI_TYPE_BUFFER) - || !element->string.length) { - acpi_util_eval_error(handle, pathname, AE_BAD_DATA); - return AE_BAD_DATA; - } - - *data = kzalloc(element->string.length + 1, GFP_KERNEL); - if (!data) { - printk(KERN_ERR PREFIX "Memory allocation\n"); - return -ENOMEM; - } - - memcpy(*data, element->string.pointer, element->string.length); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%s]\n", *data)); - - kfree(buffer.pointer); - - return AE_OK; -} -#endif - acpi_status acpi_evaluate_reference(acpi_handle handle, acpi_string pathname, diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index b765790b32be..9865d46f49a8 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -39,10 +39,13 @@ #include <linux/sort.h> #include <linux/pci.h> #include <linux/pci_ids.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <linux/dmi.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include <linux/suspend.h> +#include <acpi/video.h> #define PREFIX "ACPI: " @@ -63,11 +66,6 @@ #define MAX_NAME_LEN 20 -#define ACPI_VIDEO_DISPLAY_CRT 1 -#define ACPI_VIDEO_DISPLAY_TV 2 -#define ACPI_VIDEO_DISPLAY_DVI 3 -#define ACPI_VIDEO_DISPLAY_LCD 4 - #define _COMPONENT ACPI_VIDEO_COMPONENT ACPI_MODULE_NAME("video"); @@ -88,7 +86,6 @@ module_param(allow_duplicates, bool, 0644); static int register_count = 0; static int acpi_video_bus_add(struct acpi_device *device); static int acpi_video_bus_remove(struct acpi_device *device, int type); -static int acpi_video_resume(struct acpi_device *device); static void acpi_video_bus_notify(struct acpi_device *device, u32 event); static const struct acpi_device_id video_device_ids[] = { @@ -104,7 +101,6 @@ static struct acpi_driver acpi_video_bus = { .ops = { .add = acpi_video_bus_add, .remove = acpi_video_bus_remove, - .resume = acpi_video_resume, .notify = acpi_video_bus_notify, }, }; @@ -159,6 +155,7 @@ struct acpi_video_bus { struct proc_dir_entry *dir; struct input_dev *input; char phys[32]; /* for input device */ + struct notifier_block pm_nb; }; struct acpi_video_device_flags { @@ -327,7 +324,7 @@ static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level); static int acpi_video_device_lcd_get_level_current( struct acpi_video_device *device, - unsigned long long *level); + unsigned long long *level, int init); static int acpi_video_get_next_level(struct acpi_video_device *device, u32 level_current, u32 event); static int acpi_video_switch_brightness(struct acpi_video_device *device, @@ -345,7 +342,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd) struct acpi_video_device *vd = (struct acpi_video_device *)bl_get_data(bd); - if (acpi_video_device_lcd_get_level_current(vd, &cur_level)) + if (acpi_video_device_lcd_get_level_current(vd, &cur_level, 0)) return -EINVAL; for (i = 2; i < vd->brightness->count; i++) { if (vd->brightness->levels[i] == cur_level) @@ -414,7 +411,7 @@ static int video_get_cur_state(struct thermal_cooling_device *cooling_dev, unsig unsigned long long level; int offset; - if (acpi_video_device_lcd_get_level_current(video, &level)) + if (acpi_video_device_lcd_get_level_current(video, &level, 0)) return -EINVAL; for (offset = 2; offset < video->brightness->count; offset++) if (level == video->brightness->levels[offset]) { @@ -609,7 +606,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = { static int acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, - unsigned long long *level) + unsigned long long *level, int init) { acpi_status status = AE_OK; int i; @@ -633,10 +630,16 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, device->brightness->curr = *level; return 0; } - /* BQC returned an invalid level. Stop using it. */ - ACPI_WARNING((AE_INFO, "%s returned an invalid level", - buf)); - device->cap._BQC = device->cap._BCQ = 0; + if (!init) { + /* + * BQC returned an invalid level. + * Stop using it. + */ + ACPI_WARNING((AE_INFO, + "%s returned an invalid level", + buf)); + device->cap._BQC = device->cap._BCQ = 0; + } } else { /* Fixme: * should we return an error or ignore this failure? @@ -759,7 +762,7 @@ acpi_video_bus_POST_options(struct acpi_video_bus *video, static int acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) { - acpi_integer status = 0; + u64 status = 0; union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list args = { 1, &arg0 }; @@ -892,7 +895,7 @@ acpi_video_init_brightness(struct acpi_video_device *device) if (!device->cap._BQC) goto set_level; - result = acpi_video_device_lcd_get_level_current(device, &level_old); + result = acpi_video_device_lcd_get_level_current(device, &level_old, 1); if (result) goto out_free_levels; @@ -903,7 +906,7 @@ acpi_video_init_brightness(struct acpi_video_device *device) if (result) goto out_free_levels; - result = acpi_video_device_lcd_get_level_current(device, &level); + result = acpi_video_device_lcd_get_level_current(device, &level, 0); if (result) goto out_free_levels; @@ -992,6 +995,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) } if (acpi_video_backlight_support()) { + struct backlight_properties props; int result; static int count = 0; char *name; @@ -999,17 +1003,26 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) result = acpi_video_init_brightness(device); if (result) return; - name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); + name = kasprintf(GFP_KERNEL, "acpi_video%d", count); if (!name) return; + count++; - sprintf(name, "acpi_video%d", count++); - device->backlight = backlight_device_register(name, - NULL, device, &acpi_backlight_ops); + memset(&props, 0, sizeof(struct backlight_properties)); + props.max_brightness = device->brightness->count - 3; + device->backlight = backlight_device_register(name, NULL, device, + &acpi_backlight_ops, + &props); kfree(name); if (IS_ERR(device->backlight)) return; - device->backlight->props.max_brightness = device->brightness->count-3; + + /* + * Save current brightness level in case we have to restore it + * before acpi_video_device_lcd_set_level() is called next time. + */ + device->backlight->props.brightness = + acpi_video_get_brightness(device->backlight); result = sysfs_create_link(&device->backlight->dev.kobj, &device->dev->dev.kobj, "device"); @@ -1050,10 +1063,10 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (device->cap._DCS && device->cap._DSS) { static int count; char *name; - name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); + name = kasprintf(GFP_KERNEL, "acpi_video%d", count); if (!name) return; - sprintf(name, "acpi_video%d", count++); + count++; device->output_dev = video_output_register(name, NULL, device, &acpi_output_properties); kfree(name); @@ -1731,11 +1744,27 @@ acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id } static int +acpi_video_get_device_type(struct acpi_video_bus *video, + unsigned long device_id) +{ + struct acpi_video_enumerated_device *ids; + int i; + + for (i = 0; i < video->attached_count; i++) { + ids = &video->attached_array[i]; + if ((ids->value.int_val & 0xffff) == device_id) + return ids->value.int_val; + } + + return 0; +} + +static int acpi_video_bus_get_one_device(struct acpi_device *device, struct acpi_video_bus *video) { unsigned long long device_id; - int status; + int status, device_type; struct acpi_video_device *data; struct acpi_video_device_attrib* attribute; @@ -1780,8 +1809,25 @@ acpi_video_bus_get_one_device(struct acpi_device *device, } if(attribute->bios_can_detect) data->flags.bios = 1; - } else - data->flags.unknown = 1; + } else { + /* Check for legacy IDs */ + device_type = acpi_video_get_device_type(video, + device_id); + /* Ignore bits 16 and 18-20 */ + switch (device_type & 0xffe2ffff) { + case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR: + data->flags.crt = 1; + break; + case ACPI_VIDEO_DISPLAY_LEGACY_PANEL: + data->flags.lcd = 1; + break; + case ACPI_VIDEO_DISPLAY_LEGACY_TV: + data->flags.tvout = 1; + break; + default: + data->flags.unknown = 1; + } + } acpi_video_device_bind(video, data); acpi_video_device_find_cap(data); @@ -1996,7 +2042,7 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event) goto out; result = acpi_video_device_lcd_get_level_current(device, - &level_current); + &level_current, 0); if (result) goto out; @@ -2015,6 +2061,71 @@ out: return result; } +int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, + void **edid) +{ + struct acpi_video_bus *video; + struct acpi_video_device *video_device; + union acpi_object *buffer = NULL; + acpi_status status; + int i, length; + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + video = acpi_driver_data(device); + + for (i = 0; i < video->attached_count; i++) { + video_device = video->attached_array[i].bind_info; + length = 256; + + if (!video_device) + continue; + + if (type) { + switch (type) { + case ACPI_VIDEO_DISPLAY_CRT: + if (!video_device->flags.crt) + continue; + break; + case ACPI_VIDEO_DISPLAY_TV: + if (!video_device->flags.tvout) + continue; + break; + case ACPI_VIDEO_DISPLAY_DVI: + if (!video_device->flags.dvi) + continue; + break; + case ACPI_VIDEO_DISPLAY_LCD: + if (!video_device->flags.lcd) + continue; + break; + } + } else if (video_device->device_id != device_id) { + continue; + } + + status = acpi_video_device_EDID(video_device, &buffer, length); + + if (ACPI_FAILURE(status) || !buffer || + buffer->type != ACPI_TYPE_BUFFER) { + length = 128; + status = acpi_video_device_EDID(video_device, &buffer, + length); + if (ACPI_FAILURE(status) || !buffer || + buffer->type != ACPI_TYPE_BUFFER) { + continue; + } + } + + *edid = buffer->buffer.pointer; + return length; + } + + return -ENODEV; +} +EXPORT_SYMBOL(acpi_video_get_edid); + static int acpi_video_bus_get_devices(struct acpi_video_bus *video, struct acpi_device *device) @@ -2113,7 +2224,7 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) { struct acpi_video_bus *video = acpi_driver_data(device); struct input_dev *input; - int keycode; + int keycode = 0; if (!video) return; @@ -2149,17 +2260,19 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) break; default: - keycode = KEY_UNKNOWN; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); break; } acpi_notifier_call_chain(device, event, 0); - input_report_key(input, keycode, 1); - input_sync(input); - input_report_key(input, keycode, 0); - input_sync(input); + + if (keycode) { + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + } return; } @@ -2170,7 +2283,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) struct acpi_device *device = NULL; struct acpi_video_bus *bus; struct input_dev *input; - int keycode; + int keycode = 0; if (!video_device) return; @@ -2211,39 +2324,48 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) keycode = KEY_DISPLAY_OFF; break; default: - keycode = KEY_UNKNOWN; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); break; } acpi_notifier_call_chain(device, event, 0); - input_report_key(input, keycode, 1); - input_sync(input); - input_report_key(input, keycode, 0); - input_sync(input); + + if (keycode) { + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + } return; } -static int instance; -static int acpi_video_resume(struct acpi_device *device) +static int acpi_video_resume(struct notifier_block *nb, + unsigned long val, void *ign) { struct acpi_video_bus *video; struct acpi_video_device *video_device; int i; - if (!device || !acpi_driver_data(device)) - return -EINVAL; + switch (val) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + case PM_RESTORE_PREPARE: + return NOTIFY_DONE; + } - video = acpi_driver_data(device); + video = container_of(nb, struct acpi_video_bus, pm_nb); + + dev_info(&video->device->dev, "Restoring backlight state\n"); for (i = 0; i < video->attached_count; i++) { video_device = video->attached_array[i].bind_info; if (video_device && video_device->backlight) acpi_video_set_brightness(video_device->backlight); } - return AE_OK; + + return NOTIFY_OK; } static acpi_status @@ -2267,6 +2389,8 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context, return AE_OK; } +static int instance; + static int acpi_video_bus_add(struct acpi_device *device) { struct acpi_video_bus *video; @@ -2348,7 +2472,6 @@ static int acpi_video_bus_add(struct acpi_device *device) set_bit(KEY_BRIGHTNESSDOWN, input->keybit); set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); set_bit(KEY_DISPLAY_OFF, input->keybit); - set_bit(KEY_UNKNOWN, input->keybit); error = input_register_device(input); if (error) @@ -2360,6 +2483,10 @@ static int acpi_video_bus_add(struct acpi_device *device) video->flags.rom ? "yes" : "no", video->flags.post ? "yes" : "no"); + video->pm_nb.notifier_call = acpi_video_resume; + video->pm_nb.priority = 0; + register_pm_notifier(&video->pm_nb); + return 0; err_free_input_dev: @@ -2386,6 +2513,8 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type) video = acpi_driver_data(device); + unregister_pm_notifier(&video->pm_nb); + acpi_video_bus_stop_devices(video); acpi_video_bus_put_devices(video); acpi_video_bus_remove_fs(device); diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index fc2f26b9b407..c5fef01b3c95 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -250,7 +250,7 @@ static int __init acpi_backlight(char *str) ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR; if (!strcmp("video", str)) acpi_video_support |= - ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO; + ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO; } return 1; } diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index e0ee0c036f5a..388747a7ef4f 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -21,12 +21,12 @@ ACPI_MODULE_NAME("wakeup_devices") /** - * acpi_enable_wakeup_device_prep - prepare wakeup devices - * @sleep_state: ACPI state - * Enable all wakup devices power if the devices' wakeup level - * is higher than requested sleep level + * acpi_enable_wakeup_device_prep - Prepare wake-up devices. + * @sleep_state: ACPI system sleep state. + * + * Enable all wake-up devices' power, unless the requested system sleep state is + * too deep. */ - void acpi_enable_wakeup_device_prep(u8 sleep_state) { struct list_head *node, *next; @@ -36,9 +36,8 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state) struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid || - !dev->wakeup.state.enabled || - (sleep_state > (u32) dev->wakeup.sleep_state)) + if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled + || (sleep_state > (u32) dev->wakeup.sleep_state)) continue; acpi_enable_wakeup_device_power(dev, sleep_state); @@ -46,9 +45,12 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state) } /** - * acpi_enable_wakeup_device - enable wakeup devices - * @sleep_state: ACPI state - * Enable all wakup devices's GPE + * acpi_enable_wakeup_device - Enable wake-up device GPEs. + * @sleep_state: ACPI system sleep state. + * + * Enable all wake-up devices' GPEs, with the assumption that + * acpi_disable_all_gpes() was executed before, so we don't need to disable any + * GPEs here. */ void acpi_enable_wakeup_device(u8 sleep_state) { @@ -62,32 +64,22 @@ void acpi_enable_wakeup_device(u8 sleep_state) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid) + if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled + || sleep_state > (u32) dev->wakeup.sleep_state) continue; - /* If users want to disable run-wake GPE, - * we only disable it for wake and leave it for runtime - */ - if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) - || sleep_state > (u32) dev->wakeup.sleep_state) { - if (dev->wakeup.flags.run_wake) { - /* set_gpe_type will disable GPE, leave it like that */ - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_RUNTIME); - } - continue; - } - if (!dev->wakeup.flags.run_wake) - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); + /* The wake-up power should have been enabled already. */ + acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); } } /** - * acpi_disable_wakeup_device - disable devices' wakeup capability - * @sleep_state: ACPI state - * Disable all wakup devices's GPE and wakeup capability + * acpi_disable_wakeup_device - Disable devices' wakeup capability. + * @sleep_state: ACPI system sleep state. + * + * This function only affects devices with wakeup.state.enabled set, which means + * that it reverses the changes made by acpi_enable_wakeup_device_prep(). */ void acpi_disable_wakeup_device(u8 sleep_state) { @@ -97,30 +89,13 @@ void acpi_disable_wakeup_device(u8 sleep_state) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid) + if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled + || (sleep_state > (u32) dev->wakeup.sleep_state)) continue; - if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) - || sleep_state > (u32) dev->wakeup.sleep_state) { - if (dev->wakeup.flags.run_wake) { - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - /* Re-enable it, since set_gpe_type will disable it */ - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - } - continue; - } - + acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); acpi_disable_wakeup_device_power(dev); - /* Never disable run-wake GPE */ - if (!dev->wakeup.flags.run_wake) { - acpi_disable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - acpi_clear_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, ACPI_NOT_ISR); - } } } @@ -133,15 +108,8 @@ int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - /* In case user doesn't load button driver */ - if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled) - continue; - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number); - dev->wakeup.state.enabled = 1; + if (dev->wakeup.flags.always_enabled) + dev->wakeup.state.enabled = 1; } mutex_unlock(&acpi_device_lock); return 0; |