summaryrefslogtreecommitdiff
path: root/drivers/acpi
diff options
context:
space:
mode:
authorRobert Moore <Robert.Moore@intel.com>2005-09-02 17:24:17 -0400
committerLen Brown <len.brown@intel.com>2005-09-03 00:15:11 -0400
commitaff8c2777d1a9edf97f26bf60579f9c931443eb1 (patch)
treefcd5bfe84e0e3aeb328d60ec41776522b9b7d122 /drivers/acpi
parenta94f18810f52d3a6de0a09bee0c7258b62eca262 (diff)
[ACPI] ACPICA 20050902
Fixed a problem with the internal Owner ID allocation and deallocation mechanisms for control method execution and recursive method invocation. This should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" messages seen on some systems. Recursive method invocation depth is currently limited to 255. (Alexey Starikovskiy) http://bugzilla.kernel.org/show_bug.cgi?id=4892 Completely eliminated all vestiges of support for the "module-level executable code" until this support is fully implemented and debugged. This should eliminate the NO_RETURN_VALUE exceptions seen during table load on some systems that invoke this support. http://bugzilla.kernel.org/show_bug.cgi?id=5162 Fixed a problem within the resource manager code where the transaction flags for a 64-bit address descriptor were handled incorrectly in the type-specific flag byte. Consolidated duplicate code within the address descriptor resource manager code, reducing overall subsystem code size. Signed-off-by: Robert Moore <Robert.Moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c69
-rw-r--r--drivers/acpi/dispatcher/dswload.c5
-rw-r--r--drivers/acpi/parser/psparse.c23
-rw-r--r--drivers/acpi/parser/psxface.c14
-rw-r--r--drivers/acpi/resources/rsaddr.c542
-rw-r--r--drivers/acpi/resources/rsirq.c21
-rw-r--r--drivers/acpi/utilities/utmisc.c15
7 files changed, 331 insertions, 358 deletions
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 77fcfc3070db..36c1ca0b9adb 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -207,6 +207,13 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
return_ACPI_STATUS(AE_NULL_ENTRY);
}
+ /* Prevent wraparound of thread count */
+
+ if (obj_desc->method.thread_count == ACPI_UINT8_MAX) {
+ ACPI_REPORT_ERROR(("Method reached maximum reentrancy limit (255)\n"));
+ return_ACPI_STATUS(AE_AML_METHOD_LIMIT);
+ }
+
/*
* If there is a concurrency limit on this method, we need to
* obtain a unit from the method semaphore.
@@ -237,6 +244,18 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
}
/*
+ * Allocate an Owner ID for this method, only if this is the first thread
+ * to begin concurrent execution. We only need one owner_id, even if the
+ * method is invoked recursively.
+ */
+ if (!obj_desc->method.owner_id) {
+ status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
* Increment the method parse tree thread count since it has been
* reentered one more time (even if it is the same thread)
*/
@@ -289,11 +308,6 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
return_ACPI_STATUS(AE_NULL_OBJECT);
}
- status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
/* Init for new method, wait on concurrency semaphore */
status = acpi_ds_begin_method_execution(method_node, obj_desc,
@@ -345,9 +359,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
}
/*
* The resolved arguments were put on the previous walk state's operand
- * stack. Operands on the previous walk state stack always
- * start at index 0.
- * Null terminate the list of arguments
+ * stack. Operands on the previous walk state stack always
+ * start at index 0. Also, null terminate the list of arguments
*/
this_walk_state->operands[this_walk_state->num_operands] = NULL;
@@ -380,21 +393,20 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
status = obj_desc->method.implementation(next_walk_state);
- return_ACPI_STATUS(status);
}
- return_ACPI_STATUS(AE_OK);
-
- /* On error, we must delete the new walk state */
+ return_ACPI_STATUS(status);
cleanup:
- acpi_ut_release_owner_id(&obj_desc->method.owner_id);
- if (next_walk_state && (next_walk_state->method_desc)) {
- /* Decrement the thread count on the method parse tree */
+ /* Decrement the thread count on the method parse tree */
+ if (next_walk_state && (next_walk_state->method_desc)) {
next_walk_state->method_desc->method.thread_count--;
}
- (void)acpi_ds_terminate_control_method(next_walk_state);
+
+ /* On error, we must delete the new walk state */
+
+ acpi_ds_terminate_control_method(next_walk_state);
acpi_ds_delete_walk_state(next_walk_state);
return_ACPI_STATUS(status);
}
@@ -479,7 +491,7 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
*
* PARAMETERS: walk_state - State of the method
*
- * RETURN: Status
+ * RETURN: None
*
* DESCRIPTION: Terminate a control method. Delete everything that the method
* created, delete all locals and arguments, and delete the parse
@@ -487,7 +499,7 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
*
******************************************************************************/
-acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
+void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
{
union acpi_operand_object *obj_desc;
struct acpi_namespace_node *method_node;
@@ -496,14 +508,14 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
ACPI_FUNCTION_TRACE_PTR("ds_terminate_control_method", walk_state);
if (!walk_state) {
- return (AE_BAD_PARAMETER);
+ return_VOID;
}
/* The current method object was saved in the walk state */
obj_desc = walk_state->method_desc;
if (!obj_desc) {
- return_ACPI_STATUS(AE_OK);
+ return_VOID;
}
/* Delete all arguments and locals */
@@ -517,7 +529,7 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_PARSER);
if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ return_VOID;
}
/* Signal completion of the execution of this method if necessary */
@@ -528,7 +540,6 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
semaphore, 1);
if (ACPI_FAILURE(status)) {
ACPI_REPORT_ERROR(("Could not signal method semaphore\n"));
- status = AE_OK;
/* Ignore error and continue cleanup */
}
@@ -539,9 +550,8 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
"*** Not deleting method namespace, there are still %d threads\n",
walk_state->method_desc->method.
thread_count));
- }
+ } else { /* This is the last executing thread */
- if (!walk_state->method_desc->method.thread_count) {
/*
* Support to dynamically change a method from not_serialized to
* Serialized if it appears that the method is written foolishly and
@@ -574,7 +584,7 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ goto exit;
}
if (method_node->child) {
@@ -590,12 +600,9 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_ut_release_owner_id(&walk_state->method_desc->method.
owner_id);
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
}
- status = acpi_ut_release_mutex(ACPI_MTX_PARSER);
- return_ACPI_STATUS(status);
+ exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_PARSER);
+ return_VOID;
}
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index 362bbcfc1718..411731261c29 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -486,8 +486,10 @@ acpi_ds_load2_begin_op(struct acpi_walk_state * walk_state,
if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
(walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
(!(walk_state->op_info->flags & AML_NAMED))) {
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
(walk_state->op_info->class == AML_CLASS_CONTROL)) {
+
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"Begin/EXEC: %s (fl %8.8X)\n",
walk_state->op_info->name,
@@ -499,6 +501,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state * walk_state,
acpi_ds_exec_begin_op(walk_state, out_op);
return_ACPI_STATUS(status);
}
+#endif
return_ACPI_STATUS(AE_OK);
}
@@ -731,6 +734,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
#ifndef ACPI_NO_METHOD_EXECUTION
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
/* No namespace object. Executable opcode? */
if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
@@ -746,6 +750,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
return_ACPI_STATUS(status);
}
#endif
+#endif
return_ACPI_STATUS(AE_OK);
}
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index 3248051d77ee..76d4d640d83c 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -438,7 +438,6 @@ acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
{
acpi_status status;
- acpi_status terminate_status;
struct acpi_thread_state *thread;
struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list;
struct acpi_walk_state *previous_walk_state;
@@ -508,6 +507,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
walk_state->method_node, NULL,
status);
+ /* Ensure proper cleanup */
+
+ walk_state->parse_flags |= ACPI_PARSE_EXECUTE;
+
/* Check for possible multi-thread reentrancy problem */
if ((status == AE_ALREADY_EXISTS) &&
@@ -524,14 +527,6 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
}
}
- if (walk_state->method_desc) {
- /* Decrement the thread count on the method parse tree */
-
- if (walk_state->method_desc->method.thread_count) {
- walk_state->method_desc->method.thread_count--;
- }
- }
-
/* We are done with this walk, move on to the parent if any */
walk_state = acpi_ds_pop_walk_state(thread);
@@ -546,13 +541,13 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
*/
if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
ACPI_PARSE_EXECUTE) {
- terminate_status =
- acpi_ds_terminate_control_method(walk_state);
- if (ACPI_FAILURE(terminate_status)) {
- ACPI_REPORT_ERROR(("Could not terminate control method properly\n"));
+ if (walk_state->method_desc) {
+ /* Decrement the thread count on the method parse tree */
- /* Ignore error and continue */
+ walk_state->method_desc->method.thread_count--;
}
+
+ acpi_ds_terminate_control_method(walk_state);
}
/* Delete this walk state and all linked control states */
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 80c67f2d3dd2..4dcbd443160e 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -99,16 +99,6 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
}
/*
- * Get a new owner_id for objects created by this method. Namespace
- * objects (such as Operation Regions) can be created during the
- * first pass parse.
- */
- status = acpi_ut_allocate_owner_id(&info->obj_desc->method.owner_id);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
* The caller "owns" the parameters, so give each one an extra
* reference
*/
@@ -139,10 +129,6 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
status = acpi_ps_execute_pass(info);
cleanup:
- if (info->obj_desc->method.owner_id) {
- acpi_ut_release_owner_id(&info->obj_desc->method.owner_id);
- }
-
/* Take away the extra reference that we gave the parameters above */
acpi_ps_update_parameter_list(info, REF_DECREMENT);
diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c
index 4cf46e1ee01b..23b54baa0cb2 100644
--- a/drivers/acpi/resources/rsaddr.c
+++ b/drivers/acpi/resources/rsaddr.c
@@ -47,6 +47,180 @@
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsaddr")
+/* Local prototypes */
+static void
+acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags);
+
+static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource);
+
+static void
+acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags);
+
+static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_decode_general_flags
+ *
+ * PARAMETERS: Resource - Address resource data struct
+ * Flags - Actual flag byte
+ *
+ * RETURN: Decoded flag bits in resource struct
+ *
+ * DESCRIPTION: Decode a general flag byte to an address resource struct
+ *
+ ******************************************************************************/
+
+static void
+acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Producer / Consumer - flag bit[0] */
+
+ resource->address.producer_consumer = (u32) (flags & 0x01);
+
+ /* Decode (_DEC) - flag bit[1] */
+
+ resource->address.decode = (u32) ((flags >> 1) & 0x01);
+
+ /* Min Address Fixed (_MIF) - flag bit[2] */
+
+ resource->address.min_address_fixed = (u32) ((flags >> 2) & 0x01);
+
+ /* Max Address Fixed (_MAF) - flag bit[3] */
+
+ resource->address.max_address_fixed = (u32) ((flags >> 3) & 0x01);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_encode_general_flags
+ *
+ * PARAMETERS: Resource - Address resource data struct
+ *
+ * RETURN: Encoded general flag byte
+ *
+ * DESCRIPTION: Construct a general flag byte from an address resource struct
+ *
+ ******************************************************************************/
+
+static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource)
+{
+ u8 flags;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Producer / Consumer - flag bit[0] */
+
+ flags = (u8) (resource->address.producer_consumer & 0x01);
+
+ /* Decode (_DEC) - flag bit[1] */
+
+ flags |= (u8) ((resource->address.decode & 0x01) << 1);
+
+ /* Min Address Fixed (_MIF) - flag bit[2] */
+
+ flags |= (u8) ((resource->address.min_address_fixed & 0x01) << 2);
+
+ /* Max Address Fixed (_MAF) - flag bit[3] */
+
+ flags |= (u8) ((resource->address.max_address_fixed & 0x01) << 3);
+
+ return (flags);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_decode_specific_flags
+ *
+ * PARAMETERS: Resource - Address resource data struct
+ * Flags - Actual flag byte
+ *
+ * RETURN: Decoded flag bits in attribute struct
+ *
+ * DESCRIPTION: Decode a type-specific flag byte to an attribute struct.
+ * Type-specific flags are only defined for the Memory and IO
+ * resource types.
+ *
+ ******************************************************************************/
+
+static void
+acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
+ /* Write Status (_RW) - flag bit[0] */
+
+ resource->address.attribute.memory.read_write_attribute =
+ (u16) (flags & 0x01);
+
+ /* Memory Attributes (_MEM) - flag bits[2:1] */
+
+ resource->address.attribute.memory.cache_attribute =
+ (u16) ((flags >> 1) & 0x03);
+ } else if (resource->address.resource_type == ACPI_IO_RANGE) {
+ /* Ranges (_RNG) - flag bits[1:0] */
+
+ resource->address.attribute.io.range_attribute =
+ (u16) (flags & 0x03);
+
+ /* Translations (_TTP and _TRS) - flag bits[5:4] */
+
+ resource->address.attribute.io.translation_attribute =
+ (u16) ((flags >> 4) & 0x03);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_encode_specific_flags
+ *
+ * PARAMETERS: Resource - Address resource data struct
+ *
+ * RETURN: Encoded type-specific flag byte
+ *
+ * DESCRIPTION: Construct a type-specific flag byte from an attribute struct.
+ * Type-specific flags are only defined for the Memory and IO
+ * resource types.
+ *
+ ******************************************************************************/
+
+static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource)
+{
+ u8 flags = 0;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
+ /* Write Status (_RW) - flag bit[0] */
+
+ flags = (u8)
+ (resource->address.attribute.memory.
+ read_write_attribute & 0x01);
+
+ /* Memory Attributes (_MEM) - flag bits[2:1] */
+
+ flags |= (u8)
+ ((resource->address.attribute.memory.
+ cache_attribute & 0x03) << 1);
+ } else if (resource->address.resource_type == ACPI_IO_RANGE) {
+ /* Ranges (_RNG) - flag bits[1:0] */
+
+ flags = (u8)
+ (resource->address.attribute.io.range_attribute & 0x03);
+
+ /* Translations (_TTP and _TRS) - flag bits[5:4] */
+
+ flags |= (u8)
+ ((resource->address.attribute.io.
+ translation_attribute & 0x03) << 4);
+ }
+
+ return (flags);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_rs_address16_resource
@@ -67,6 +241,7 @@ ACPI_MODULE_NAME("rsaddr")
* number of bytes consumed from the byte stream.
*
******************************************************************************/
+
acpi_status
acpi_rs_address16_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
@@ -83,7 +258,7 @@ acpi_rs_address16_resource(u8 * byte_stream_buffer,
ACPI_FUNCTION_TRACE("rs_address16_resource");
- /* Point past the Descriptor to get the number of bytes consumed */
+ /* Get the Descriptor Length field */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
@@ -113,46 +288,12 @@ acpi_rs_address16_resource(u8 * byte_stream_buffer,
/* Get the General Flags (Byte4) */
buffer += 1;
- temp8 = *buffer;
-
- /* Producer / Consumer */
-
- output_struct->data.address16.producer_consumer = temp8 & 0x01;
-
- /* Decode */
-
- output_struct->data.address16.decode = (temp8 >> 1) & 0x01;
-
- /* Min Address Fixed */
-
- output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01;
-
- /* Max Address Fixed */
-
- output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01;
+ acpi_rs_decode_general_flags(&output_struct->data, *buffer);
/* Get the Type Specific Flags (Byte5) */
buffer += 1;
- temp8 = *buffer;
-
- if (ACPI_MEMORY_RANGE == output_struct->data.address16.resource_type) {
- output_struct->data.address16.attribute.memory.
- read_write_attribute = (u16) (temp8 & 0x01);
- output_struct->data.address16.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x03);
- } else {
- if (ACPI_IO_RANGE ==
- output_struct->data.address16.resource_type) {
- output_struct->data.address16.attribute.io.
- range_attribute = (u16) (temp8 & 0x03);
- output_struct->data.address16.attribute.io.
- translation_attribute = (u16) ((temp8 >> 4) & 0x03);
- } else {
- /* BUS_NUMBER_RANGE == Address16.Data->resource_type */
- /* Nothing needs to be filled in */
- }
- }
+ acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
/* Get Granularity (Bytes 6-7) */
@@ -200,9 +341,8 @@ acpi_rs_address16_resource(u8 * byte_stream_buffer,
if (*bytes_consumed > (16 + 1)) {
/* Dereference the Index */
- temp8 = *buffer;
output_struct->data.address16.resource_source.index =
- (u32) temp8;
+ (u32) * buffer;
/* Point to the String */
@@ -216,22 +356,20 @@ acpi_rs_address16_resource(u8 * byte_stream_buffer,
temp_ptr = (u8 *)
output_struct->data.address16.resource_source.string_ptr;
- /* Copy the string into the buffer */
+ /* Copy the resource_source string into the buffer */
index = 0;
-
- while (0x00 != *buffer) {
+ while (*buffer) {
*temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
+ temp_ptr++;
+ buffer++;
+ index++;
}
- /* Add the terminating null */
-
- *temp_ptr = 0x00;
+ /* Add the terminating null and set the string length */
+ *temp_ptr = 0;
output_struct->data.address16.resource_source.string_length =
index + 1;
@@ -243,7 +381,7 @@ acpi_rs_address16_resource(u8 * byte_stream_buffer,
temp8 = (u8) (index + 1);
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
} else {
- output_struct->data.address16.resource_source.index = 0x00;
+ output_struct->data.address16.resource_source.index = 0;
output_struct->data.address16.resource_source.string_length = 0;
output_struct->data.address16.resource_source.string_ptr = NULL;
}
@@ -280,15 +418,13 @@ acpi_rs_address16_stream(struct acpi_resource *linked_list,
{
u8 *buffer = *output_buffer;
u8 *length_field;
- u8 temp8;
- char *temp_pointer = NULL;
acpi_size actual_bytes;
ACPI_FUNCTION_TRACE("rs_address16_stream");
- /* The descriptor field is static */
+ /* Set the Descriptor Type field */
- *buffer = 0x88;
+ *buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE;
buffer += 1;
/* Save a pointer to the Length field - to be filled in later */
@@ -298,43 +434,17 @@ acpi_rs_address16_stream(struct acpi_resource *linked_list,
/* Set the Resource Type (Memory, Io, bus_number) */
- temp8 = (u8) (linked_list->data.address16.resource_type & 0x03);
- *buffer = temp8;
+ *buffer = (u8) (linked_list->data.address16.resource_type & 0x03);
buffer += 1;
/* Set the general flags */
- temp8 = (u8) (linked_list->data.address16.producer_consumer & 0x01);
-
- temp8 |= (linked_list->data.address16.decode & 0x01) << 1;
- temp8 |= (linked_list->data.address16.min_address_fixed & 0x01) << 2;
- temp8 |= (linked_list->data.address16.max_address_fixed & 0x01) << 3;
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_general_flags(&linked_list->data);
buffer += 1;
/* Set the type specific flags */
- temp8 = 0;
-
- if (ACPI_MEMORY_RANGE == linked_list->data.address16.resource_type) {
- temp8 = (u8)
- (linked_list->data.address16.attribute.memory.
- read_write_attribute & 0x01);
-
- temp8 |=
- (linked_list->data.address16.attribute.memory.
- cache_attribute & 0x03) << 1;
- } else if (ACPI_IO_RANGE == linked_list->data.address16.resource_type) {
- temp8 = (u8)
- (linked_list->data.address16.attribute.io.range_attribute &
- 0x03);
- temp8 |=
- (linked_list->data.address16.attribute.io.
- translation_attribute & 0x03) << 4;
- }
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
buffer += 1;
/* Set the address space granularity */
@@ -368,22 +478,19 @@ acpi_rs_address16_stream(struct acpi_resource *linked_list,
/* Resource Source Index and Resource Source are optional */
- if (0 != linked_list->data.address16.resource_source.string_length) {
- temp8 = (u8) linked_list->data.address16.resource_source.index;
-
- *buffer = temp8;
+ if (linked_list->data.address16.resource_source.string_length) {
+ *buffer =
+ (u8) linked_list->data.address16.resource_source.index;
buffer += 1;
- temp_pointer = (char *)buffer;
-
- /* Copy the string */
+ /* Copy the resource_source string */
- ACPI_STRCPY(temp_pointer,
+ ACPI_STRCPY((char *)buffer,
linked_list->data.address16.resource_source.
string_ptr);
/*
- * Buffer needs to be set to the length of the sting + one for the
+ * Buffer needs to be set to the length of the string + one for the
* terminating null
*/
buffer +=
@@ -432,20 +539,18 @@ acpi_rs_address32_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
u8 ** output_buffer, acpi_size * structure_size)
{
- u8 *buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
u16 temp16;
u8 temp8;
u8 *temp_ptr;
- acpi_size struct_size;
u32 index;
+ u8 *buffer = byte_stream_buffer;
+ struct acpi_resource *output_struct = (void *)*output_buffer;
+ acpi_size struct_size =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
ACPI_FUNCTION_TRACE("rs_address32_resource");
- buffer = byte_stream_buffer;
- struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
-
- /* Point past the Descriptor to get the number of bytes consumed */
+ /* Get the Descriptor Length field */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
@@ -475,47 +580,12 @@ acpi_rs_address32_resource(u8 * byte_stream_buffer,
/* Get the General Flags (Byte4) */
buffer += 1;
- temp8 = *buffer;
-
- /* Producer / Consumer */
-
- output_struct->data.address32.producer_consumer = temp8 & 0x01;
-
- /* Decode */
-
- output_struct->data.address32.decode = (temp8 >> 1) & 0x01;
-
- /* Min Address Fixed */
-
- output_struct->data.address32.min_address_fixed = (temp8 >> 2) & 0x01;
-
- /* Max Address Fixed */
-
- output_struct->data.address32.max_address_fixed = (temp8 >> 3) & 0x01;
+ acpi_rs_decode_general_flags(&output_struct->data, *buffer);
/* Get the Type Specific Flags (Byte5) */
buffer += 1;
- temp8 = *buffer;
-
- if (ACPI_MEMORY_RANGE == output_struct->data.address32.resource_type) {
- output_struct->data.address32.attribute.memory.
- read_write_attribute = (u16) (temp8 & 0x01);
-
- output_struct->data.address32.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x03);
- } else {
- if (ACPI_IO_RANGE ==
- output_struct->data.address32.resource_type) {
- output_struct->data.address32.attribute.io.
- range_attribute = (u16) (temp8 & 0x03);
- output_struct->data.address32.attribute.io.
- translation_attribute = (u16) ((temp8 >> 4) & 0x03);
- } else {
- /* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */
- /* Nothing needs to be filled in */
- }
- }
+ acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
/* Get Granularity (Bytes 6-9) */
@@ -561,9 +631,8 @@ acpi_rs_address32_resource(u8 * byte_stream_buffer,
if (*bytes_consumed > (26 + 1)) {
/* Dereference the Index */
- temp8 = *buffer;
output_struct->data.address32.resource_source.index =
- (u32) temp8;
+ (u32) * buffer;
/* Point to the String */
@@ -577,20 +646,20 @@ acpi_rs_address32_resource(u8 * byte_stream_buffer,
temp_ptr = (u8 *)
output_struct->data.address32.resource_source.string_ptr;
- /* Copy the string into the buffer */
+ /* Copy the resource_source string into the buffer */
index = 0;
- while (0x00 != *buffer) {
+ while (*buffer) {
*temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
+ temp_ptr++;
+ buffer++;
+ index++;
}
- /* Add the terminating null */
+ /* Add the terminating null and set the string length */
- *temp_ptr = 0x00;
+ *temp_ptr = 0;
output_struct->data.address32.resource_source.string_length =
index + 1;
@@ -602,7 +671,7 @@ acpi_rs_address32_resource(u8 * byte_stream_buffer,
temp8 = (u8) (index + 1);
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
} else {
- output_struct->data.address32.resource_source.index = 0x00;
+ output_struct->data.address32.resource_source.index = 0;
output_struct->data.address32.resource_source.string_length = 0;
output_struct->data.address32.resource_source.string_ptr = NULL;
}
@@ -639,62 +708,34 @@ acpi_rs_address32_stream(struct acpi_resource *linked_list,
{
u8 *buffer;
u16 *length_field;
- u8 temp8;
- char *temp_pointer;
ACPI_FUNCTION_TRACE("rs_address32_stream");
buffer = *output_buffer;
- /* The descriptor field is static */
+ /* Set the Descriptor Type field */
- *buffer = 0x87;
+ *buffer = ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE;
buffer += 1;
- /* Set a pointer to the Length field - to be filled in later */
+ /* Save a pointer to the Length field - to be filled in later */
length_field = ACPI_CAST_PTR(u16, buffer);
buffer += 2;
/* Set the Resource Type (Memory, Io, bus_number) */
- temp8 = (u8) (linked_list->data.address32.resource_type & 0x03);
-
- *buffer = temp8;
+ *buffer = (u8) (linked_list->data.address32.resource_type & 0x03);
buffer += 1;
/* Set the general flags */
- temp8 = (u8) (linked_list->data.address32.producer_consumer & 0x01);
- temp8 |= (linked_list->data.address32.decode & 0x01) << 1;
- temp8 |= (linked_list->data.address32.min_address_fixed & 0x01) << 2;
- temp8 |= (linked_list->data.address32.max_address_fixed & 0x01) << 3;
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_general_flags(&linked_list->data);
buffer += 1;
/* Set the type specific flags */
- temp8 = 0;
-
- if (ACPI_MEMORY_RANGE == linked_list->data.address32.resource_type) {
- temp8 = (u8)
- (linked_list->data.address32.attribute.memory.
- read_write_attribute & 0x01);
-
- temp8 |=
- (linked_list->data.address32.attribute.memory.
- cache_attribute & 0x03) << 1;
- } else if (ACPI_IO_RANGE == linked_list->data.address32.resource_type) {
- temp8 = (u8)
- (linked_list->data.address32.attribute.io.range_attribute &
- 0x03);
- temp8 |=
- (linked_list->data.address32.attribute.io.
- translation_attribute & 0x03) << 4;
- }
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
buffer += 1;
/* Set the address space granularity */
@@ -728,22 +769,19 @@ acpi_rs_address32_stream(struct acpi_resource *linked_list,
/* Resource Source Index and Resource Source are optional */
- if (0 != linked_list->data.address32.resource_source.string_length) {
- temp8 = (u8) linked_list->data.address32.resource_source.index;
-
- *buffer = temp8;
+ if (linked_list->data.address32.resource_source.string_length) {
+ *buffer =
+ (u8) linked_list->data.address32.resource_source.index;
buffer += 1;
- temp_pointer = (char *)buffer;
-
- /* Copy the string */
+ /* Copy the resource_source string */
- ACPI_STRCPY(temp_pointer,
+ ACPI_STRCPY((char *)buffer,
linked_list->data.address32.resource_source.
string_ptr);
/*
- * Buffer needs to be set to the length of the sting + one for the
+ * Buffer needs to be set to the length of the string + one for the
* terminating null
*/
buffer +=
@@ -758,7 +796,7 @@ acpi_rs_address32_stream(struct acpi_resource *linked_list,
/*
* Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
+ * minus the header size (3 bytes)
*/
*length_field = (u16) (*bytes_consumed - 3);
return_ACPI_STATUS(AE_OK);
@@ -790,22 +828,23 @@ acpi_rs_address64_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
u8 ** output_buffer, acpi_size * structure_size)
{
- u8 *buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
u16 temp16;
u8 temp8;
u8 resource_type;
u8 *temp_ptr;
- acpi_size struct_size;
u32 index;
+ u8 *buffer = byte_stream_buffer;
+ struct acpi_resource *output_struct = (void *)*output_buffer;
+ acpi_size struct_size =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
ACPI_FUNCTION_TRACE("rs_address64_resource");
- buffer = byte_stream_buffer;
- struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
+ /* Get the Descriptor Type */
+
resource_type = *buffer;
- /* Point past the Descriptor to get the number of bytes consumed */
+ /* Get the Descriptor Length field */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
@@ -835,47 +874,12 @@ acpi_rs_address64_resource(u8 * byte_stream_buffer,
/* Get the General Flags (Byte4) */
buffer += 1;
- temp8 = *buffer;
-
- /* Producer / Consumer */
-
- output_struct->data.address64.producer_consumer = temp8 & 0x01;
-
- /* Decode */
-
- output_struct->data.address64.decode = (temp8 >> 1) & 0x01;
-
- /* Min Address Fixed */
-
- output_struct->data.address64.min_address_fixed = (temp8 >> 2) & 0x01;
-
- /* Max Address Fixed */
-
- output_struct->data.address64.max_address_fixed = (temp8 >> 3) & 0x01;
+ acpi_rs_decode_general_flags(&output_struct->data, *buffer);
/* Get the Type Specific Flags (Byte5) */
buffer += 1;
- temp8 = *buffer;
-
- if (ACPI_MEMORY_RANGE == output_struct->data.address64.resource_type) {
- output_struct->data.address64.attribute.memory.
- read_write_attribute = (u16) (temp8 & 0x01);
-
- output_struct->data.address64.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x03);
- } else {
- if (ACPI_IO_RANGE ==
- output_struct->data.address64.resource_type) {
- output_struct->data.address64.attribute.io.
- range_attribute = (u16) (temp8 & 0x03);
- output_struct->data.address64.attribute.io.
- translation_attribute = (u16) ((temp8 >> 4) & 0x03);
- } else {
- /* BUS_NUMBER_RANGE == output_struct->Data.Address64.resource_type */
- /* Nothing needs to be filled in */
- }
- }
+ acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
/* Move past revision_id and Reserved byte */
@@ -912,7 +916,7 @@ acpi_rs_address64_resource(u8 * byte_stream_buffer,
ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length,
buffer);
- output_struct->data.address64.resource_source.index = 0x00;
+ output_struct->data.address64.resource_source.index = 0;
output_struct->data.address64.resource_source.string_length = 0;
output_struct->data.address64.resource_source.string_ptr = NULL;
@@ -942,9 +946,8 @@ acpi_rs_address64_resource(u8 * byte_stream_buffer,
if (*bytes_consumed > (46 + 1)) {
/* Dereference the Index */
- temp8 = *buffer;
output_struct->data.address64.resource_source.index =
- (u32) temp8;
+ (u32) * buffer;
/* Point to the String */
@@ -960,21 +963,21 @@ acpi_rs_address64_resource(u8 * byte_stream_buffer,
output_struct->data.address64.resource_source.
string_ptr;
- /* Copy the string into the buffer */
+ /* Copy the resource_source string into the buffer */
index = 0;
- while (0x00 != *buffer) {
+ while (*buffer) {
*temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
+ temp_ptr++;
+ buffer++;
+ index++;
}
/*
- * Add the terminating null
+ * Add the terminating null and set the string length
*/
- *temp_ptr = 0x00;
+ *temp_ptr = 0;
output_struct->data.address64.resource_source.
string_length = index + 1;
@@ -1020,62 +1023,34 @@ acpi_rs_address64_stream(struct acpi_resource *linked_list,
{
u8 *buffer;
u16 *length_field;
- u8 temp8;
- char *temp_pointer;
ACPI_FUNCTION_TRACE("rs_address64_stream");
buffer = *output_buffer;
- /* The descriptor field is static */
+ /* Set the Descriptor Type field */
- *buffer = 0x8A;
+ *buffer = ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE;
buffer += 1;
- /* Set a pointer to the Length field - to be filled in later */
+ /* Save a pointer to the Length field - to be filled in later */
length_field = ACPI_CAST_PTR(u16, buffer);
buffer += 2;
/* Set the Resource Type (Memory, Io, bus_number) */
- temp8 = (u8) (linked_list->data.address64.resource_type & 0x03);
-
- *buffer = temp8;
+ *buffer = (u8) (linked_list->data.address64.resource_type & 0x03);
buffer += 1;
/* Set the general flags */
- temp8 = (u8) (linked_list->data.address64.producer_consumer & 0x01);
- temp8 |= (linked_list->data.address64.decode & 0x01) << 1;
- temp8 |= (linked_list->data.address64.min_address_fixed & 0x01) << 2;
- temp8 |= (linked_list->data.address64.max_address_fixed & 0x01) << 3;
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_general_flags(&linked_list->data);
buffer += 1;
/* Set the type specific flags */
- temp8 = 0;
-
- if (ACPI_MEMORY_RANGE == linked_list->data.address64.resource_type) {
- temp8 = (u8)
- (linked_list->data.address64.attribute.memory.
- read_write_attribute & 0x01);
-
- temp8 |=
- (linked_list->data.address64.attribute.memory.
- cache_attribute & 0x03) << 1;
- } else if (ACPI_IO_RANGE == linked_list->data.address64.resource_type) {
- temp8 = (u8)
- (linked_list->data.address64.attribute.io.range_attribute &
- 0x03);
- temp8 |=
- (linked_list->data.address64.attribute.io.range_attribute &
- 0x03) << 4;
- }
-
- *buffer = temp8;
+ *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
buffer += 1;
/* Set the address space granularity */
@@ -1109,22 +1084,19 @@ acpi_rs_address64_stream(struct acpi_resource *linked_list,
/* Resource Source Index and Resource Source are optional */
- if (0 != linked_list->data.address64.resource_source.string_length) {
- temp8 = (u8) linked_list->data.address64.resource_source.index;
-
- *buffer = temp8;
+ if (linked_list->data.address64.resource_source.string_length) {
+ *buffer =
+ (u8) linked_list->data.address64.resource_source.index;
buffer += 1;
- temp_pointer = (char *)buffer;
-
- /* Copy the string */
+ /* Copy the resource_source string */
- ACPI_STRCPY(temp_pointer,
+ ACPI_STRCPY((char *)buffer,
linked_list->data.address64.resource_source.
string_ptr);
/*
- * Buffer needs to be set to the length of the sting + one for the
+ * Buffer needs to be set to the length of the string + one for the
* terminating null
*/
buffer +=
diff --git a/drivers/acpi/resources/rsirq.c b/drivers/acpi/resources/rsirq.c
index 7179b6243f5b..56043fee96cb 100644
--- a/drivers/acpi/resources/rsirq.c
+++ b/drivers/acpi/resources/rsirq.c
@@ -290,7 +290,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
ACPI_FUNCTION_TRACE("rs_extended_irq_resource");
- /* Point past the Descriptor to get the number of bytes consumed */
+ /* Get the Descriptor Length field */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
@@ -398,7 +398,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
/* Copy the string into the buffer */
index = 0;
- while (0x00 != *buffer) {
+ while (*buffer) {
*temp_ptr = *buffer;
temp_ptr += 1;
@@ -408,7 +408,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
/* Add the terminating null */
- *temp_ptr = 0x00;
+ *temp_ptr = 0;
output_struct->data.extended_irq.resource_source.string_length =
index + 1;
@@ -420,7 +420,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
temp8 = (u8) (index + 1);
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
} else {
- output_struct->data.extended_irq.resource_source.index = 0x00;
+ output_struct->data.extended_irq.resource_source.index = 0;
output_struct->data.extended_irq.resource_source.string_length =
0;
output_struct->data.extended_irq.resource_source.string_ptr =
@@ -461,16 +461,15 @@ acpi_rs_extended_irq_stream(struct acpi_resource *linked_list,
u16 *length_field;
u8 temp8 = 0;
u8 index;
- char *temp_pointer = NULL;
ACPI_FUNCTION_TRACE("rs_extended_irq_stream");
- /* The descriptor field is static */
+ /* Set the Descriptor Type field */
- *buffer = 0x89;
+ *buffer = ACPI_RDESC_TYPE_EXTENDED_XRUPT;
buffer += 1;
- /* Set a pointer to the Length field - to be filled in later */
+ /* Save a pointer to the Length field - to be filled in later */
length_field = ACPI_CAST_PTR(u16, buffer);
buffer += 2;
@@ -524,16 +523,14 @@ acpi_rs_extended_irq_stream(struct acpi_resource *linked_list,
(u8) linked_list->data.extended_irq.resource_source.index;
buffer += 1;
- temp_pointer = (char *)buffer;
-
/* Copy the string */
- ACPI_STRCPY(temp_pointer,
+ ACPI_STRCPY((char *)buffer,
linked_list->data.extended_irq.resource_source.
string_ptr);
/*
- * Buffer needs to be set to the length of the sting + one for the
+ * Buffer needs to be set to the length of the string + one for the
* terminating null
*/
buffer +=
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index f0275025b718..0c5abc536c7a 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -67,6 +67,14 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
ACPI_FUNCTION_TRACE("ut_allocate_owner_id");
+ /* Guard against multiple allocations of ID to the same location */
+
+ if (*owner_id) {
+ ACPI_REPORT_ERROR(("Owner ID [%2.2X] already exists\n",
+ *owner_id));
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
+ }
+
/* Mutex for the global ID mask */
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
@@ -80,7 +88,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
if (!(acpi_gbl_owner_id_mask & (1 << i))) {
ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
"Current owner_id mask: %8.8X New ID: %2.2X\n",
- acpi_gbl_owner_id_mask, (i + 1)));
+ acpi_gbl_owner_id_mask,
+ (unsigned int)(i + 1)));
acpi_gbl_owner_id_mask |= (1 << i);
*owner_id = (acpi_owner_id) (i + 1);
@@ -143,7 +152,9 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
return_VOID;
}
- owner_id--; /* Normalize to zero */
+ /* Normalize the ID to zero */
+
+ owner_id--;
/* Free the owner ID only if it is valid */