#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utalloc")
+/* Local prototypes */
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation);
+
+static acpi_status
+acpi_ut_track_allocation(struct acpi_debug_mem_block *address,
+ acpi_size size,
+ u8 alloc_type, u32 component, char *module, u32 line);
+
+static acpi_status
+acpi_ut_remove_allocation(struct acpi_debug_mem_block *address,
+ u32 component, char *module, u32 line);
+
+static acpi_status
+acpi_ut_create_list(char *list_name,
+ u16 object_size, struct acpi_memory_list **return_cache);
+#endif
+
/*******************************************************************************
*
* FUNCTION: acpi_ut_create_caches
* DESCRIPTION: Create all local caches
*
******************************************************************************/
+
acpi_status acpi_ut_create_caches(void)
{
acpi_status status;
- /* Object Caches, for frequently used objects */
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+ /* Memory allocation lists */
+
+ status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
status =
- acpi_os_create_cache("Acpi-Namespace",
- sizeof(struct acpi_namespace_node),
- ACPI_MAX_NAMESPACE_CACHE_DEPTH,
- &acpi_gbl_namespace_cache);
+ acpi_ut_create_list("Acpi-Namespace",
+ sizeof(struct acpi_namespace_node),
+ &acpi_gbl_ns_node_list);
if (ACPI_FAILURE(status)) {
return (status);
}
+#endif
+
+ /* Object Caches, for frequently used objects */
status =
- acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
+ acpi_os_create_cache("acpi_state", sizeof(union acpi_generic_state),
ACPI_MAX_STATE_CACHE_DEPTH,
&acpi_gbl_state_cache);
if (ACPI_FAILURE(status)) {
}
status =
- acpi_os_create_cache("Acpi-Parse",
+ acpi_os_create_cache("acpi_parse",
sizeof(struct acpi_parse_obj_common),
ACPI_MAX_PARSE_CACHE_DEPTH,
&acpi_gbl_ps_node_cache);
}
status =
- acpi_os_create_cache("Acpi-ParseExt",
+ acpi_os_create_cache("acpi_parse_ext",
sizeof(struct acpi_parse_obj_named),
ACPI_MAX_EXTPARSE_CACHE_DEPTH,
&acpi_gbl_ps_node_ext_cache);
}
status =
- acpi_os_create_cache("Acpi-Operand",
+ acpi_os_create_cache("acpi_operand",
sizeof(union acpi_operand_object),
ACPI_MAX_OBJECT_CACHE_DEPTH,
&acpi_gbl_operand_cache);
return (status);
}
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Memory allocation lists */
-
- status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_ut_create_list("Acpi-Namespace",
- sizeof(struct acpi_namespace_node),
- &acpi_gbl_ns_node_list);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-#endif
-
return (AE_OK);
}
acpi_status acpi_ut_delete_caches(void)
{
- (void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
- acpi_gbl_namespace_cache = NULL;
-
(void)acpi_os_delete_cache(acpi_gbl_state_cache);
acpi_gbl_state_cache = NULL;
(void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
acpi_gbl_ps_node_ext_cache = NULL;
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Debug only - display leftover memory allocation, if any */
-
- acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
-
- /* Free memory lists */
-
- ACPI_FREE(acpi_gbl_global_list);
- acpi_gbl_global_list = NULL;
-
- ACPI_FREE(acpi_gbl_ns_node_list);
- acpi_gbl_ns_node_list = NULL;
-#endif
-
return (AE_OK);
}
/* Allocate a new buffer with local interface to allow tracking */
- buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length);
+ buffer->pointer = ACPI_MEM_CALLOCATE(required_length);
if (!buffer->pointer) {
return (AE_NO_MEMORY);
}
return (status);
}
-#ifdef NOT_USED_BY_LINUX
/*******************************************************************************
*
* FUNCTION: acpi_ut_allocate
*
* RETURN: Address of the allocated memory on success, NULL on failure.
*
- * DESCRIPTION: Subsystem equivalent of malloc.
+ * DESCRIPTION: The subsystem's equivalent of malloc.
*
******************************************************************************/
{
void *allocation;
- ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
+ ACPI_FUNCTION_TRACE_U32("ut_allocate", size);
/* Check for an inadvertent size of zero bytes */
if (!size) {
- ACPI_WARNING((module, line,
- "Attempt to allocate zero bytes, allocating 1 byte"));
+ ACPI_ERROR((module, line,
+ "ut_allocate: Attempt to allocate zero bytes, allocating 1 byte"));
size = 1;
}
allocation = acpi_os_allocate(size);
if (!allocation) {
-
/* Report allocation error */
- ACPI_WARNING((module, line,
- "Could not allocate size %X", (u32) size));
+ ACPI_ERROR((module, line,
+ "ut_allocate: Could not allocate size %X",
+ (u32) size));
return_PTR(NULL);
}
/*******************************************************************************
*
- * FUNCTION: acpi_ut_allocate_zeroed
+ * FUNCTION: acpi_ut_callocate
*
* PARAMETERS: Size - Size of the allocation
* Component - Component type of caller
*
* RETURN: Address of the allocated memory on success, NULL on failure.
*
- * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
+ * DESCRIPTION: Subsystem equivalent of calloc.
*
******************************************************************************/
-void *acpi_ut_allocate_zeroed(acpi_size size,
- u32 component, char *module, u32 line)
+void *acpi_ut_callocate(acpi_size size, u32 component, char *module, u32 line)
{
void *allocation;
+ ACPI_FUNCTION_TRACE_U32("ut_callocate", size);
+
+ /* Check for an inadvertent size of zero bytes */
+
+ if (!size) {
+ ACPI_ERROR((module, line,
+ "Attempt to allocate zero bytes, allocating 1 byte"));
+ size = 1;
+ }
+
+ allocation = acpi_os_allocate(size);
+ if (!allocation) {
+ /* Report allocation error */
+
+ ACPI_ERROR((module, line,
+ "Could not allocate size %X", (u32) size));
+ return_PTR(NULL);
+ }
+
+ /* Clear the memory block */
+
+ ACPI_MEMSET(allocation, 0, size);
+ return_PTR(allocation);
+}
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+/*
+ * These procedures are used for tracking memory leaks in the subsystem, and
+ * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
+ *
+ * Each memory allocation is tracked via a doubly linked list. Each
+ * element contains the caller's component, module name, function name, and
+ * line number. acpi_ut_allocate and acpi_ut_callocate call
+ * acpi_ut_track_allocation to add an element to the list; deletion
+ * occurs in the body of acpi_ut_free.
+ */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_list
+ *
+ * PARAMETERS: cache_name - Ascii name for the cache
+ * object_size - Size of each cached object
+ * return_cache - Where the new cache object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a local memory list for tracking purposed
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_create_list(char *list_name,
+ u16 object_size, struct acpi_memory_list **return_cache)
+{
+ struct acpi_memory_list *cache;
+
+ cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
+ if (!cache) {
+ return (AE_NO_MEMORY);
+ }
+
+ ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
+
+ cache->list_name = list_name;
+ cache->object_size = object_size;
+
+ *return_cache = cache;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_allocate_and_track
+ *
+ * PARAMETERS: Size - Size of the allocation
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: The subsystem's equivalent of malloc.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate_and_track(acpi_size size,
+ u32 component, char *module, u32 line)
+{
+ struct acpi_debug_mem_block *allocation;
+ acpi_status status;
+
+ allocation =
+ acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header),
+ component, module, line);
+ if (!allocation) {
+ return (NULL);
+ }
+
+ status = acpi_ut_track_allocation(allocation, size,
+ ACPI_MEM_MALLOC, component, module,
+ line);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_free(allocation);
+ return (NULL);
+ }
+
+ acpi_gbl_global_list->total_allocated++;
+ acpi_gbl_global_list->current_total_size += (u32) size;
+
+ return ((void *)&allocation->user_space);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_callocate_and_track
+ *
+ * PARAMETERS: Size - Size of the allocation
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of calloc.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_callocate_and_track(acpi_size size,
+ u32 component, char *module, u32 line)
+{
+ struct acpi_debug_mem_block *allocation;
+ acpi_status status;
+
+ allocation =
+ acpi_ut_callocate(size + sizeof(struct acpi_debug_mem_header),
+ component, module, line);
+ if (!allocation) {
+ /* Report allocation error */
+
+ ACPI_ERROR((module, line,
+ "Could not allocate size %X", (u32) size));
+ return (NULL);
+ }
+
+ status = acpi_ut_track_allocation(allocation, size,
+ ACPI_MEM_CALLOC, component, module,
+ line);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_free(allocation);
+ return (NULL);
+ }
+
+ acpi_gbl_global_list->total_allocated++;
+ acpi_gbl_global_list->current_total_size += (u32) size;
+
+ return ((void *)&allocation->user_space);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_free_and_track
+ *
+ * PARAMETERS: Allocation - Address of the memory to deallocate
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Frees the memory at Allocation
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_free_and_track(void *allocation, u32 component, char *module, u32 line)
+{
+ struct acpi_debug_mem_block *debug_block;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR("ut_free", allocation);
+
+ if (NULL == allocation) {
+ ACPI_ERROR((module, line, "Attempt to delete a NULL address"));
+
+ return_VOID;
+ }
+
+ debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block,
+ (((char *)allocation) -
+ sizeof(struct acpi_debug_mem_header)));
+
+ acpi_gbl_global_list->total_freed++;
+ acpi_gbl_global_list->current_total_size -= debug_block->size;
+
+ status = acpi_ut_remove_allocation(debug_block,
+ component, module, line);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Could not free memory"));
+ }
+
+ acpi_os_free(debug_block);
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation));
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_find_allocation
+ *
+ * PARAMETERS: Allocation - Address of allocated memory
+ *
+ * RETURN: A list element if found; NULL otherwise.
+ *
+ * DESCRIPTION: Searches for an element in the global allocation tracking list.
+ *
+ ******************************************************************************/
+
+static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation)
+{
+ struct acpi_debug_mem_block *element;
+
ACPI_FUNCTION_ENTRY();
- allocation = acpi_ut_allocate(size, component, module, line);
- if (allocation) {
+ element = acpi_gbl_global_list->list_head;
- /* Clear the memory block */
+ /* Search for the address. */
- ACPI_MEMSET(allocation, 0, size);
+ while (element) {
+ if (element == allocation) {
+ return (element);
+ }
+
+ element = element->next;
}
- return (allocation);
+ return (NULL);
}
-#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_track_allocation
+ *
+ * PARAMETERS: Allocation - Address of allocated memory
+ * Size - Size of the allocation
+ * alloc_type - MEM_MALLOC or MEM_CALLOC
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Inserts an element into the global allocation tracking list.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
+ acpi_size size,
+ u8 alloc_type, u32 component, char *module, u32 line)
+{
+ struct acpi_memory_list *mem_list;
+ struct acpi_debug_mem_block *element;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR("ut_track_allocation", allocation);
+
+ mem_list = acpi_gbl_global_list;
+ status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Search list for this address to make sure it is not already on the list.
+ * This will catch several kinds of problems.
+ */
+ element = acpi_ut_find_allocation(allocation);
+ if (element) {
+ ACPI_ERROR((AE_INFO,
+ "ut_track_allocation: Allocation already present in list! (%p)",
+ allocation));
+
+ ACPI_ERROR((AE_INFO, "Element %p Address %p",
+ element, allocation));
+
+ goto unlock_and_exit;
+ }
+
+ /* Fill in the instance data. */
+
+ allocation->size = (u32) size;
+ allocation->alloc_type = alloc_type;
+ allocation->component = component;
+ allocation->line = line;
+
+ ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME);
+ allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
+
+ /* Insert at list head */
+
+ if (mem_list->list_head) {
+ ((struct acpi_debug_mem_block *)(mem_list->list_head))->
+ previous = allocation;
+ }
+
+ allocation->next = mem_list->list_head;
+ allocation->previous = NULL;
+
+ mem_list->list_head = allocation;
+
+ unlock_and_exit:
+ status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_remove_allocation
+ *
+ * PARAMETERS: Allocation - Address of allocated memory
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN:
+ *
+ * DESCRIPTION: Deletes an element from the global allocation tracking list.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
+ u32 component, char *module, u32 line)
+{
+ struct acpi_memory_list *mem_list;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE("ut_remove_allocation");
+
+ mem_list = acpi_gbl_global_list;
+ if (NULL == mem_list->list_head) {
+ /* No allocations! */
+
+ ACPI_ERROR((module, line,
+ "Empty allocation list, nothing to free!"));
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Unlink */
+
+ if (allocation->previous) {
+ (allocation->previous)->next = allocation->next;
+ } else {
+ mem_list->list_head = allocation->next;
+ }
+
+ if (allocation->next) {
+ (allocation->next)->previous = allocation->previous;
+ }
+
+ /* Mark the segment as deleted */
+
+ ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n",
+ allocation->size));
+
+ status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_dump_allocation_info
+ *
+ * PARAMETERS:
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print some info about the outstanding allocations.
+ *
+ ******************************************************************************/
+
+#ifdef ACPI_FUTURE_USAGE
+void acpi_ut_dump_allocation_info(void)
+{
+/*
+ struct acpi_memory_list *mem_list;
+*/
+
+ ACPI_FUNCTION_TRACE("ut_dump_allocation_info");
+
+/*
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Current allocations",
+ mem_list->current_count,
+ ROUND_UP_TO_1K (mem_list->current_size)));
+
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
+ mem_list->max_concurrent_count,
+ ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
+
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
+ running_object_count,
+ ROUND_UP_TO_1K (running_object_size)));
+
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
+ running_alloc_count,
+ ROUND_UP_TO_1K (running_alloc_size)));
+
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Current Nodes",
+ acpi_gbl_current_node_count,
+ ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
+
+ ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
+ ("%30s: %4d (%3d Kb)\n", "Max Nodes",
+ acpi_gbl_max_concurrent_node_count,
+ ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
+ sizeof (struct acpi_namespace_node)))));
+*/
+ return_VOID;
+}
+#endif /* ACPI_FUTURE_USAGE */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_dump_allocations
+ *
+ * PARAMETERS: Component - Component(s) to dump info for.
+ * Module - Module to dump info for. NULL means all.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print a list of all outstanding allocations.
+ *
+ ******************************************************************************/
+
+void acpi_ut_dump_allocations(u32 component, char *module)
+{
+ struct acpi_debug_mem_block *element;
+ union acpi_descriptor *descriptor;
+ u32 num_outstanding = 0;
+
+ ACPI_FUNCTION_TRACE("ut_dump_allocations");
+
+ /*
+ * Walk the allocation list.
+ */
+ if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) {
+ return;
+ }
+
+ element = acpi_gbl_global_list->list_head;
+ while (element) {
+ if ((element->component & component) &&
+ ((module == NULL)
+ || (0 == ACPI_STRCMP(module, element->module)))) {
+ /* Ignore allocated objects that are in a cache */
+
+ descriptor =
+ ACPI_CAST_PTR(union acpi_descriptor,
+ &element->user_space);
+ if (descriptor->descriptor_id != ACPI_DESC_TYPE_CACHED) {
+ acpi_os_printf("%p Len %04X %9.9s-%d [%s] ",
+ descriptor, element->size,
+ element->module, element->line,
+ acpi_ut_get_descriptor_name
+ (descriptor));
+
+ /* Most of the elements will be Operand objects. */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(descriptor)) {
+ case ACPI_DESC_TYPE_OPERAND:
+ acpi_os_printf("%12.12s R%hd",
+ acpi_ut_get_type_name
+ (descriptor->object.
+ common.type),
+ descriptor->object.
+ common.reference_count);
+ break;
+
+ case ACPI_DESC_TYPE_PARSER:
+ acpi_os_printf("aml_opcode %04hX",
+ descriptor->op.asl.
+ aml_opcode);
+ break;
+
+ case ACPI_DESC_TYPE_NAMED:
+ acpi_os_printf("%4.4s",
+ acpi_ut_get_node_name
+ (&descriptor->node));
+ break;
+
+ default:
+ break;
+ }
+
+ acpi_os_printf("\n");
+ num_outstanding++;
+ }
+ }
+ element = element->next;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY);
+
+ /* Print summary */
+
+ if (!num_outstanding) {
+ ACPI_INFO((AE_INFO, "No outstanding allocations"));
+ } else {
+ ACPI_ERROR((AE_INFO,
+ "%d(%X) Outstanding allocations",
+ num_outstanding, num_outstanding));
+ }
+
+ return_VOID;
+}
+
+#endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */
git://git.onelab.eu / linux-2.6.git / blobdiff