diff options
author | Colin Cross <ccross@android.com> | 2011-01-07 17:14:48 -0800 |
---|---|---|
committer | Colin Cross <ccross@android.com> | 2011-01-07 17:14:48 -0800 |
commit | bd842b53fada517017d192c8a12fc9a38e6250e1 (patch) | |
tree | 57399eb06aba47199535f8a5d42023465eb5001f /arch | |
parent | 5a5f348ffc433c0483b5c13ebefe73adb5e68f2b (diff) | |
parent | d77cf23f1befd3922d81b91cb01fd3da619e0206 (diff) |
Merge commit 'v2.6.36.3' into linux-tegra-2.6.36
Diffstat (limited to 'arch')
32 files changed, 226 insertions, 484 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91_mci.h b/arch/arm/mach-at91/include/mach/at91_mci.h index 57f8ee154943..27ac6f550fe3 100644 --- a/arch/arm/mach-at91/include/mach/at91_mci.h +++ b/arch/arm/mach-at91/include/mach/at91_mci.h @@ -74,6 +74,8 @@ #define AT91_MCI_TRTYP_BLOCK (0 << 19) #define AT91_MCI_TRTYP_MULTIPLE (1 << 19) #define AT91_MCI_TRTYP_STREAM (2 << 19) +#define AT91_MCI_TRTYP_SDIO_BYTE (4 << 19) +#define AT91_MCI_TRTYP_SDIO_BLOCK (5 << 19) #define AT91_MCI_BLKR 0x18 /* Block Register */ #define AT91_MCI_BLKR_BCNT(n) ((0xffff & (n)) << 0) /* Block count */ diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 86aa689ef1aa..47010d8114b0 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -196,6 +196,10 @@ ENTRY(v6_flush_kern_dcache_area) * - end - virtual end address of region */ v6_dma_inv_range: +#ifdef CONFIG_DMA_CACHE_RWFO + ldrb r2, [r0] @ read for ownership + strb r2, [r0] @ write for ownership +#endif tst r0, #D_CACHE_LINE_SIZE - 1 bic r0, r0, #D_CACHE_LINE_SIZE - 1 #ifdef HARVARD_CACHE @@ -204,6 +208,10 @@ v6_dma_inv_range: mcrne p15, 0, r0, c7, c11, 1 @ clean unified line #endif tst r1, #D_CACHE_LINE_SIZE - 1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrneb r2, [r1, #-1] @ read for ownership + strneb r2, [r1, #-1] @ write for ownership +#endif bic r1, r1, #D_CACHE_LINE_SIZE - 1 #ifdef HARVARD_CACHE mcrne p15, 0, r1, c7, c14, 1 @ clean & invalidate D line @@ -211,10 +219,6 @@ v6_dma_inv_range: mcrne p15, 0, r1, c7, c15, 1 @ clean & invalidate unified line #endif 1: -#ifdef CONFIG_DMA_CACHE_RWFO - ldr r2, [r0] @ read for ownership - str r2, [r0] @ write for ownership -#endif #ifdef HARVARD_CACHE mcr p15, 0, r0, c7, c6, 1 @ invalidate D line #else @@ -222,6 +226,10 @@ v6_dma_inv_range: #endif add r0, r0, #D_CACHE_LINE_SIZE cmp r0, r1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrlo r2, [r0] @ read for ownership + strlo r2, [r0] @ write for ownership +#endif blo 1b mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer @@ -256,12 +264,12 @@ v6_dma_clean_range: * - end - virtual end address of region */ ENTRY(v6_dma_flush_range) - bic r0, r0, #D_CACHE_LINE_SIZE - 1 -1: #ifdef CONFIG_DMA_CACHE_RWFO - ldr r2, [r0] @ read for ownership - str r2, [r0] @ write for ownership + ldrb r2, [r0] @ read for ownership + strb r2, [r0] @ write for ownership #endif + bic r0, r0, #D_CACHE_LINE_SIZE - 1 +1: #ifdef HARVARD_CACHE mcr p15, 0, r0, c7, c14, 1 @ clean & invalidate D line #else @@ -269,6 +277,10 @@ ENTRY(v6_dma_flush_range) #endif add r0, r0, #D_CACHE_LINE_SIZE cmp r0, r1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrlob r2, [r0] @ read for ownership + strlob r2, [r0] @ write for ownership +#endif blo 1b mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c index 5742bb4d78f4..5c0a3575877c 100644 --- a/arch/mips/jz4740/board-qi_lb60.c +++ b/arch/mips/jz4740/board-qi_lb60.c @@ -5,7 +5,7 @@ * * Copyright (c) 2009 Qi Hardware inc., * Author: Xiangfu Liu <xiangfu@qi-hardware.com> - * Copyright 2010, Lars-Petrer Clausen <lars@metafoo.de> + * Copyright 2010, Lars-Peter Clausen <lars@metafoo.de> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 or later @@ -235,7 +235,7 @@ static const unsigned int qi_lb60_keypad_rows[] = { QI_LB60_GPIO_KEYIN(3), QI_LB60_GPIO_KEYIN(4), QI_LB60_GPIO_KEYIN(5), - QI_LB60_GPIO_KEYIN(7), + QI_LB60_GPIO_KEYIN(6), QI_LB60_GPIO_KEYIN8, }; diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h index 963e1a45c35f..f61a5017878f 100644 --- a/arch/sparc/include/asm/openprom.h +++ b/arch/sparc/include/asm/openprom.h @@ -37,7 +37,7 @@ struct linux_dev_v2_funcs { int (*v2_dev_open)(char *devpath); void (*v2_dev_close)(int d); int (*v2_dev_read)(int d, char *buf, int nbytes); - int (*v2_dev_write)(int d, char *buf, int nbytes); + int (*v2_dev_write)(int d, const char *buf, int nbytes); int (*v2_dev_seek)(int d, int hi, int lo); /* Never issued (multistage load support) */ diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 33e31ce6b31f..618a5bd4660d 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -60,25 +60,6 @@ extern char *prom_getbootargs(void); extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ @@ -121,19 +102,8 @@ extern int prom_getrev(void); /* Get the prom firmware revision. */ extern int prom_getprev(void); -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); @@ -238,7 +208,6 @@ extern int prom_node_has_property(int node, char *property); extern int prom_setprop(int node, const char *prop_name, char *prop_value, int value_size); -extern int prom_pathtoinode(char *path); extern int prom_inst2pkg(int); /* Dorking with Bus ranges... */ diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index 3e0b2d62303d..209463d62626 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -67,27 +67,6 @@ extern void prom_init(void *cif_handler, void *cif_stack); /* Boot argument acquisition, returns the boot command line string. */ extern char *prom_getbootargs(void); -/* Device utilities. */ - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(const char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ @@ -109,33 +88,14 @@ extern void prom_halt(void) __attribute__ ((noreturn)); /* Halt and power-off the machine. */ extern void prom_halt_power_off(void) __attribute__ ((noreturn)); -/* Set the PROM 'sync' callback function to the passed function pointer. - * When the user gives the 'sync' command at the prom prompt while the - * kernel is still active, the prom will call this routine. - * - */ -typedef int (*callback_func_t)(long *cmd); -extern void prom_setcallback(callback_func_t func_ptr); - /* Acquire the IDPROM of the root node in the prom device tree. This * gets passed a buffer where you would like it stuffed. The return value * is the format type of this idprom or 0xff on error. */ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); @@ -278,9 +238,7 @@ extern int prom_finddevice(const char *name); extern int prom_setprop(int node, const char *prop_name, char *prop_value, int value_size); -extern int prom_pathtoinode(const char *path); extern int prom_inst2pkg(int); -extern int prom_service_exists(const char *service_name); extern void prom_sun4v_guest_soft_state(void); extern int prom_ihandle2path(int handle, char *buffer, int bufsize); diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 6a7b4dbc8e09..dcefd2211552 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -114,7 +114,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) if (leon3_gptimer_regs && leon3_irqctrl_regs) { LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].val, 0); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].rld, - (((1000000 / 100) - 1))); + (((1000000 / HZ) - 1))); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0); #ifdef CONFIG_SMP @@ -128,7 +128,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) } LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1))); + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/HZ) - 1))); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0); # endif diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile index 1b8c073adb44..816c0fa12dc0 100644 --- a/arch/sparc/prom/Makefile +++ b/arch/sparc/prom/Makefile @@ -6,7 +6,6 @@ ccflags := -Werror lib-y := bootstr_$(BITS).o lib-$(CONFIG_SPARC32) += devmap.o -lib-y += devops_$(BITS).o lib-y += init_$(BITS).o lib-$(CONFIG_SPARC32) += memory.o lib-y += misc_$(BITS).o diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 5340264b78f5..48863108a44c 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -16,63 +16,26 @@ extern void restore_current(void); -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -int -prom_nbgetchar(void) -{ - static char inc; - int i = -1; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - i = (*(romvec->pv_nbgetchar))(); - break; - case PROM_V2: - case PROM_V3: - if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) { - i = inc; - } else { - i = -1; - } - break; - default: - i = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return i; /* Ugh, we could spin forever on unsupported proms ;( */ -} - /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -int -prom_nbputchar(char c) +static int prom_nbputchar(const char *buf) { - static char outc; unsigned long flags; int i = -1; spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: - i = (*(romvec->pv_nbputchar))(c); + i = (*(romvec->pv_nbputchar))(*buf); break; case PROM_V2: case PROM_V3: - outc = c; - if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1) + if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, + buf, 0x1) == 1) i = 0; - else - i = -1; break; default: - i = -1; break; }; restore_current(); @@ -80,18 +43,14 @@ prom_nbputchar(char c) return i; /* Ugh, we could spin forever on unsupported proms ;( */ } -/* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_console_write_buf(const char *buf, int len) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; + while (len) { + int n = prom_nbputchar(buf); + if (n) + continue; + len--; + buf++; + } } -/* Blocking version of put character routine above. */ -void -prom_putchar(char c) -{ - while(prom_nbputchar(c) == -1) ; -} diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index 10322dc2f557..ed39e75828bd 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -15,85 +15,34 @@ extern int prom_stdin, prom_stdout; -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -inline int -prom_nbgetchar(void) -{ - unsigned long args[7]; - char inc; - - args[0] = (unsigned long) "read"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdin; - args[4] = (unsigned long) &inc; - args[5] = 1; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); - - if (args[6] == 1) - return inc; - return -1; -} - -/* Non blocking put character to console device, returns -1 if - * unsuccessful. - */ -inline int -prom_nbputchar(char c) +static int __prom_console_write_buf(const char *buf, int len) { unsigned long args[7]; - char outc; - - outc = c; + int ret; args[0] = (unsigned long) "write"; args[1] = 3; args[2] = 1; args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) &outc; - args[5] = 1; + args[4] = (unsigned long) buf; + args[5] = (unsigned int) len; args[6] = (unsigned long) -1; p1275_cmd_direct(args); - if (args[6] == 1) - return 0; - else + ret = (int) args[6]; + if (ret < 0) return -1; + return ret; } -/* Blocking version of get character routine above. */ -char -prom_getchar(void) -{ - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; -} - -/* Blocking version of put character routine above. */ -void -prom_putchar(char c) +void prom_console_write_buf(const char *buf, int len) { - prom_nbputchar(c); -} - -void -prom_puts(const char *s, int len) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "write"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) s; - args[5] = len; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); + while (len) { + int n = __prom_console_write_buf(buf, len); + if (n < 0) + continue; + len -= n; + buf += len; + } } diff --git a/arch/sparc/prom/devops_32.c b/arch/sparc/prom/devops_32.c deleted file mode 100644 index 9c5d4687242a..000000000000 --- a/arch/sparc/prom/devops_32.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -extern void restore_current(void); - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns -1 on failure. - */ -int -prom_devopen(char *dstr) -{ - int handle; - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - handle = (*(romvec->pv_v0devops.v0_devopen))(dstr); - if(handle == 0) handle = -1; - break; - case PROM_V2: - case PROM_V3: - handle = (*(romvec->pv_v2devops.v2_dev_open))(dstr); - break; - default: - handle = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return handle; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_devclose))(dhandle); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_close))(dhandle); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_seekdev))(dhandle, seekhi, seeklo); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_seek))(dhandle, seekhi, seeklo); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); -} diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c deleted file mode 100644 index a017119e7ef1..000000000000 --- a/arch/sparc/prom/devops_64.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns 0 on failure. - */ -int -prom_devopen(const char *dstr) -{ - unsigned long args[5]; - - args[0] = (unsigned long) "open"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) dstr; - args[4] = (unsigned long) -1; - - p1275_cmd_direct(args); - - return (int) args[4]; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long args[4]; - - args[0] = (unsigned long) "close"; - args[1] = 1; - args[2] = 0; - args[3] = (unsigned int) dhandle; - - p1275_cmd_direct(args); - - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "seek"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) dhandle; - args[4] = seekhi; - args[5] = seeklo; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); -} diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index 6cb1581d6aef..2fdcebf9a5df 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -18,7 +18,7 @@ #include <asm/system.h> #include <asm/ldc.h> -int prom_service_exists(const char *service_name) +static int prom_service_exists(const char *service_name) { unsigned long args[5]; @@ -150,20 +150,6 @@ void prom_halt_power_off(void) prom_halt(); } -/* Set prom sync handler to call function 'funcp'. */ -void prom_setcallback(callback_func_t funcp) -{ - unsigned long args[5]; - if (!funcp) - return; - args[0] = (unsigned long) "set-callback"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) funcp; - args[4] = (unsigned long) -1; - p1275_cmd_direct(args); -} - /* Get the idprom and stuff it into buffer 'idbuf'. Returns the * format type. 'num_bytes' is the number of bytes that your idbuf * has space for. Returns 0xff on error. diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index ca869266b9f3..d9682f06b3b0 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -15,22 +15,45 @@ #include <linux/kernel.h> #include <linux/compiler.h> +#include <linux/spinlock.h> #include <asm/openprom.h> #include <asm/oplib.h> +#define CONSOLE_WRITE_BUF_SIZE 1024 + static char ppbuf[1024]; +static char console_write_buf[CONSOLE_WRITE_BUF_SIZE]; +static DEFINE_RAW_SPINLOCK(console_write_lock); void notrace prom_write(const char *buf, unsigned int n) { - char ch; + unsigned int dest_len; + unsigned long flags; + char *dest; + + dest = console_write_buf; + raw_spin_lock_irqsave(&console_write_lock, flags); - while (n != 0) { - --n; - if ((ch = *buf++) == '\n') - prom_putchar('\r'); - prom_putchar(ch); + dest_len = 0; + while (n-- != 0) { + char ch = *buf++; + if (ch == '\n') { + *dest++ = '\r'; + dest_len++; + } + *dest++ = ch; + dest_len++; + if (dest_len >= CONSOLE_WRITE_BUF_SIZE - 1) { + prom_console_write_buf(console_write_buf, dest_len); + dest = console_write_buf; + dest_len = 0; + } } + if (dest_len) + prom_console_write_buf(console_write_buf, dest_len); + + raw_spin_unlock_irqrestore(&console_write_lock, flags); } void notrace prom_printf(const char *fmt, ...) diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c index b21592f8e3fe..71e7f080a576 100644 --- a/arch/sparc/prom/tree_32.c +++ b/arch/sparc/prom/tree_32.c @@ -341,18 +341,3 @@ int prom_inst2pkg(int inst) if (node == -1) return 0; return node; } - -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -int prom_pathtoinode(char *path) -{ - int node, inst; - - inst = prom_devopen (path); - if (inst == -1) return 0; - node = prom_inst2pkg (inst); - prom_devclose (inst); - if (node == -1) return 0; - return node; -} diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c index 9d3f9137a43a..8327b1b68f4b 100644 --- a/arch/sparc/prom/tree_64.c +++ b/arch/sparc/prom/tree_64.c @@ -374,24 +374,6 @@ inline int prom_inst2pkg(int inst) return node; } -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -int -prom_pathtoinode(const char *path) -{ - int node, inst; - - inst = prom_devopen (path); - if (inst == 0) - return 0; - node = prom_inst2pkg(inst); - prom_devclose(inst); - if (node == -1) - return 0; - return node; -} - int prom_ihandle2path(int handle, char *buffer, int bufsize) { unsigned long args[7]; diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 84c29111756c..aaf6282bacc3 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -212,6 +212,13 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, childregs->sp = sp; /* override with new user stack pointer */ /* + * If CLONE_SETTLS is set, set "tp" in the new task to "r4", + * which is passed in as arg #5 to sys_clone(). + */ + if (clone_flags & CLONE_SETTLS) + childregs->tp = regs->regs[4]; + + /* * Copy the callee-saved registers from the passed pt_regs struct * into the context-switch callee-saved registers area. * We have to restore the callee-saved registers since we may diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index c52e2eb40a1e..6986312bb670 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -79,7 +79,7 @@ #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) #define KVM_MIN_FREE_MMU_PAGES 5 #define KVM_REFILL_PAGES 25 -#define KVM_MAX_CPUID_ENTRIES 40 +#define KVM_MAX_CPUID_ENTRIES 80 #define KVM_NR_FIXED_MTRR_REGION 88 #define KVM_NR_VAR_MTRR 8 diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 325b7bdbebaa..f358241e4121 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -764,29 +764,6 @@ extern unsigned long idle_halt; extern unsigned long idle_nomwait; extern bool c1e_detected; -/* - * on systems with caches, caches must be flashed as the absolute - * last instruction before going into a suspended halt. Otherwise, - * dirty data can linger in the cache and become stale on resume, - * leading to strange errors. - * - * perform a variety of operations to guarantee that the compiler - * will not reorder instructions. wbinvd itself is serializing - * so the processor will not reorder. - * - * Systems without cache can just go into halt. - */ -static inline void wbinvd_halt(void) -{ - mb(); - /* check for clflush to determine if wbinvd is legal */ - if (cpu_has_clflush) - asm volatile("cli; wbinvd; 1: hlt; jmp 1b" : : : "memory"); - else - while (1) - halt(); -} - extern void enable_sep_cpu(void); extern int sysenter_setup(void); diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index e3b534cda49a..e0f220e158c1 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1340,6 +1340,14 @@ void __cpuinit end_local_APIC_setup(void) setup_apic_nmi_watchdog(NULL); apic_pm_activate(); + + /* + * Now that local APIC setup is completed for BP, configure the fault + * handling for interrupt remapping. + */ + if (!smp_processor_id() && intr_remapping_enabled) + enable_drhd_fault_handling(); + } #ifdef CONFIG_X86_X2APIC diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index ad1515dbc5ef..4d90327853b7 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3626,6 +3626,7 @@ static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask) msg.data |= MSI_DATA_VECTOR(cfg->vector); msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK; msg.address_lo |= MSI_ADDR_DEST_ID(dest); + msg.address_hi = MSI_ADDR_BASE_HI | MSI_ADDR_EXT_DEST_ID(dest); dmar_msi_write(irq, &msg); diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c index 83e9be4778e2..fac49a845064 100644 --- a/arch/x86/kernel/apic/probe_64.c +++ b/arch/x86/kernel/apic/probe_64.c @@ -76,13 +76,6 @@ void __init default_setup_apic_routing(void) /* need to update phys_pkg_id */ apic->phys_pkg_id = apicid_phys_pkg_id; } - - /* - * Now that apic routing model is selected, configure the - * fault handling for intr remapping. - */ - if (intr_remapping_enabled) - enable_drhd_fault_handling(); } /* Same for both flat and physical. */ diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index ba5f62f45f01..81fa3cb12f39 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -305,8 +305,7 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c) /* use socket ID also for last level cache */ per_cpu(cpu_llc_id, cpu) = c->phys_proc_id; /* fixup topology information on multi-node processors */ - if ((c->x86 == 0x10) && (c->x86_model == 9)) - amd_fixup_dcm(c); + amd_fixup_dcm(c); #endif } diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c index 356170262a93..2573689bda77 100644 --- a/arch/x86/kernel/microcode_intel.c +++ b/arch/x86/kernel/microcode_intel.c @@ -364,8 +364,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size, /* For performance reasons, reuse mc area when possible */ if (!mc || mc_size > curr_mc_size) { - if (mc) - vfree(mc); + vfree(mc); mc = vmalloc(mc_size); if (!mc) break; @@ -374,13 +373,11 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size, if (get_ucode_data(mc, ucode_ptr, mc_size) || microcode_sanity_check(mc) < 0) { - vfree(mc); break; } if (get_matching_microcode(&uci->cpu_sig, mc, new_rev)) { - if (new_mc) - vfree(new_mc); + vfree(new_mc); new_rev = mc_header.rev; new_mc = mc; mc = NULL; /* trigger new vmalloc */ @@ -390,12 +387,10 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size, leftover -= mc_size; } - if (mc) - vfree(mc); + vfree(mc); if (leftover) { - if (new_mc) - vfree(new_mc); + vfree(new_mc); state = UCODE_ERROR; goto out; } @@ -405,8 +400,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size, goto out; } - if (uci->mc) - vfree(uci->mc); + vfree(uci->mc); uci->mc = (struct microcode_intel *)new_mc; pr_debug("CPU%d found a matching microcode update with version 0x%x (current=0x%x)\n", diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 8b3bfc4dd708..016179e5ba09 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1383,11 +1383,94 @@ void play_dead_common(void) local_irq_disable(); } +#define MWAIT_SUBSTATE_MASK 0xf +#define MWAIT_SUBSTATE_SIZE 4 + +#define CPUID_MWAIT_LEAF 5 +#define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1 + +/* + * We need to flush the caches before going to sleep, lest we have + * dirty data in our caches when we come back up. + */ +static inline void mwait_play_dead(void) +{ + unsigned int eax, ebx, ecx, edx; + unsigned int highest_cstate = 0; + unsigned int highest_subcstate = 0; + int i; + void *mwait_ptr; + + if (!cpu_has(¤t_cpu_data, X86_FEATURE_MWAIT)) + return; + if (!cpu_has(¤t_cpu_data, X86_FEATURE_CLFLSH)) + return; + if (current_cpu_data.cpuid_level < CPUID_MWAIT_LEAF) + return; + + eax = CPUID_MWAIT_LEAF; + ecx = 0; + native_cpuid(&eax, &ebx, &ecx, &edx); + + /* + * eax will be 0 if EDX enumeration is not valid. + * Initialized below to cstate, sub_cstate value when EDX is valid. + */ + if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED)) { + eax = 0; + } else { + edx >>= MWAIT_SUBSTATE_SIZE; + for (i = 0; i < 7 && edx; i++, edx >>= MWAIT_SUBSTATE_SIZE) { + if (edx & MWAIT_SUBSTATE_MASK) { + highest_cstate = i; + highest_subcstate = edx & MWAIT_SUBSTATE_MASK; + } + } + eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) | + (highest_subcstate - 1); + } + + /* + * This should be a memory location in a cache line which is + * unlikely to be touched by other processors. The actual + * content is immaterial as it is not actually modified in any way. + */ + mwait_ptr = ¤t_thread_info()->flags; + + wbinvd(); + + while (1) { + /* + * The CLFLUSH is a workaround for erratum AAI65 for + * the Xeon 7400 series. It's not clear it is actually + * needed, but it should be harmless in either case. + * The WBINVD is insufficient due to the spurious-wakeup + * case where we return around the loop. + */ + clflush(mwait_ptr); + __monitor(mwait_ptr, 0, 0); + mb(); + __mwait(eax, 0); + } +} + +static inline void hlt_play_dead(void) +{ + if (current_cpu_data.x86 >= 4) + wbinvd(); + + while (1) { + native_halt(); + } +} + void native_play_dead(void) { play_dead_common(); tboot_shutdown(TB_SHUTDOWN_WFS); - wbinvd_halt(); + + mwait_play_dead(); /* Only returns on failure */ + hlt_play_dead(); } #else /* ... !CONFIG_HOTPLUG_CPU */ diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c index 9c253bd65e24..547128546cc3 100644 --- a/arch/x86/kernel/xsave.c +++ b/arch/x86/kernel/xsave.c @@ -394,7 +394,8 @@ static void __init setup_xstate_init(void) * Setup init_xstate_buf to represent the init state of * all the features managed by the xsave */ - init_xstate_buf = alloc_bootmem(xstate_size); + init_xstate_buf = alloc_bootmem_align(xstate_size, + __alignof__(struct xsave_struct)); init_xstate_buf->i387.mxcsr = MXCSR_DEFAULT; clts(); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 89055e002137..e7c3f3bd08fc 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3383,6 +3383,10 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu) static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) { switch (func) { + case 0x00000001: + /* Mask out xsave bit as long as it is not supported by SVM */ + entry->ecx &= ~(bit(X86_FEATURE_XSAVE)); + break; case 0x80000001: if (nested) entry->ecx |= (1 << 2); /* Set SVM bit */ diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f23f725dfd8c..b3986fec7e68 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4248,11 +4248,6 @@ static int vmx_get_lpage_level(void) return PT_PDPE_LEVEL; } -static inline u32 bit(int bitno) -{ - return 1 << (bitno & 31); -} - static void vmx_cpuid_update(struct kvm_vcpu *vcpu) { struct kvm_cpuid_entry2 *best; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3f2d2b3b4d85..a5746de6f402 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -153,11 +153,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { u64 __read_mostly host_xcr0; -static inline u32 bit(int bitno) -{ - return 1 << (bitno & 31); -} - static void kvm_on_user_return(struct user_return_notifier *urn) { unsigned slot; @@ -5117,6 +5112,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4; kvm_x86_ops->set_cr4(vcpu, sregs->cr4); + if (sregs->cr4 & X86_CR4_OSXSAVE) + update_cpuid(vcpu); if (!is_long_mode(vcpu) && is_pae(vcpu)) { load_pdptrs(vcpu, vcpu->arch.cr3); mmu_reset_needed = 1; diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index b7a404722d2b..0bf327453499 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -65,6 +65,11 @@ static inline int is_paging(struct kvm_vcpu *vcpu) return kvm_read_cr0_bits(vcpu, X86_CR0_PG); } +static inline u32 bit(int bitno) +{ + return 1 << (bitno & 31); +} + void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index b67a6b5aa8d4..42623310c968 100644 --- a/arch/x86/oprofile/op_model_amd.c +++ b/arch/x86/oprofile/op_model_amd.c @@ -484,21 +484,29 @@ static int __init_ibs_nmi(void) return 0; } -/* initialize the APIC for the IBS interrupts if available */ +/* + * check and reserve APIC extended interrupt LVT offset for IBS if + * available + * + * init_ibs() preforms implicitly cpu-local operations, so pin this + * thread to its current CPU + */ + static void init_ibs(void) { - ibs_caps = get_ibs_caps(); + preempt_disable(); + ibs_caps = get_ibs_caps(); if (!ibs_caps) - return; + goto out; - if (__init_ibs_nmi()) { + if (__init_ibs_nmi() < 0) ibs_caps = 0; - return; - } + else + printk(KERN_INFO "oprofile: AMD IBS detected (0x%08x)\n", ibs_caps); - printk(KERN_INFO "oprofile: AMD IBS detected (0x%08x)\n", - (unsigned)ibs_caps); +out: + preempt_enable(); } static int (*create_arch_files)(struct super_block *sb, struct dentry *root); diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index 4a2afa1bac51..b6552b189bcd 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -25,7 +25,7 @@ targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) export CPPFLAGS_vdso.lds += -P -C -VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -Wl,-soname=linux-vdso.so.1 \ +VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \ -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so @@ -69,7 +69,7 @@ vdso32.so-$(VDSO32-y) += sysenter vdso32-images = $(vdso32.so-y:%=vdso32-%.so) CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds) -VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -Wl,-soname=linux-gate.so.1 +VDSO_LDFLAGS_vdso32.lds = -m32 -Wl,-soname=linux-gate.so.1 # This makes sure the $(obj) subdirectory exists even though vdso32/ # is not a kbuild sub-make subdirectory. |