diff options
Diffstat (limited to 'drivers/acpi/utilities')
| -rw-r--r-- | drivers/acpi/utilities/Makefile | 2 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utalloc.c | 304 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utcache.c | 328 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utcopy.c | 46 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utdebug.c | 228 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utdelete.c | 140 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utglobal.c | 108 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utinit.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utmisc.c | 799 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utmutex.c | 380 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utobject.c | 34 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utstate.c | 376 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utxface.c | 23 |
13 files changed, 1539 insertions, 1231 deletions
diff --git a/drivers/acpi/utilities/Makefile b/drivers/acpi/utilities/Makefile index 939c447dd52a..e87108b7338a 100644 --- a/drivers/acpi/utilities/Makefile +++ b/drivers/acpi/utilities/Makefile @@ -3,6 +3,6 @@ # obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ - utcopy.o utdelete.o utglobal.o utmath.o utobject.o + utcopy.o utdelete.o utglobal.o utmath.o utobject.o utstate.o utmutex.o utobject.o utcache.o EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c index c4e7f989a2bd..78270f50e625 100644 --- a/drivers/acpi/utilities/utalloc.c +++ b/drivers/acpi/utilities/utalloc.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Module Name: utalloc - local cache and memory allocation routines + * Module Name: utalloc - local memory allocation routines * *****************************************************************************/ @@ -52,12 +52,10 @@ #ifdef ACPI_DBG_TRACK_ALLOCATIONS static struct acpi_debug_mem_block * acpi_ut_find_allocation ( - u32 list_id, void *allocation); static acpi_status acpi_ut_track_allocation ( - u32 list_id, struct acpi_debug_mem_block *address, acpi_size size, u8 alloc_type, @@ -67,206 +65,118 @@ acpi_ut_track_allocation ( static acpi_status acpi_ut_remove_allocation ( - u32 list_id, struct acpi_debug_mem_block *address, u32 component, char *module, u32 line); #endif /* ACPI_DBG_TRACK_ALLOCATIONS */ - -/******************************************************************************* - * - * FUNCTION: acpi_ut_release_to_cache - * - * PARAMETERS: list_id - Memory list/cache ID - * Object - The object to be released - * - * RETURN: None - * - * DESCRIPTION: Release an object to the specified cache. If cache is full, - * the object is deleted. - * - ******************************************************************************/ - -void -acpi_ut_release_to_cache ( - u32 list_id, - void *object) -{ - struct acpi_memory_list *cache_info; - - - ACPI_FUNCTION_ENTRY (); - - - cache_info = &acpi_gbl_memory_lists[list_id]; - -#ifdef ACPI_ENABLE_OBJECT_CACHE - - /* If walk cache is full, just free this wallkstate object */ - - if (cache_info->cache_depth >= cache_info->max_cache_depth) { - ACPI_MEM_FREE (object); - ACPI_MEM_TRACKING (cache_info->total_freed++); - } - - /* Otherwise put this object back into the cache */ - - else { - if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) { - return; - } - - /* Mark the object as cached */ - - ACPI_MEMSET (object, 0xCA, cache_info->object_size); - ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_CACHED); - - /* Put the object at the head of the cache list */ - - * (ACPI_CAST_INDIRECT_PTR (char, - &(((char *) object)[cache_info->link_offset]))) = cache_info->list_head; - cache_info->list_head = object; - cache_info->cache_depth++; - - (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); - } - -#else - - /* Object cache is disabled; just free the object */ - - ACPI_MEM_FREE (object); - ACPI_MEM_TRACKING (cache_info->total_freed++); +#ifdef ACPI_DBG_TRACK_ALLOCATIONS +static acpi_status +acpi_ut_create_list ( + char *list_name, + u16 object_size, + struct acpi_memory_list **return_cache); #endif -} /******************************************************************************* * - * FUNCTION: acpi_ut_acquire_from_cache + * FUNCTION: acpi_ut_create_caches * - * PARAMETERS: list_id - Memory list ID + * PARAMETERS: None * - * RETURN: A requested object. NULL if the object could not be - * allocated. + * RETURN: Status * - * DESCRIPTION: Get an object from the specified cache. If cache is empty, - * the object is allocated. + * DESCRIPTION: Create all local caches * ******************************************************************************/ -void * -acpi_ut_acquire_from_cache ( - u32 list_id) +acpi_status +acpi_ut_create_caches ( + void) { - struct acpi_memory_list *cache_info; - void *object; - - - ACPI_FUNCTION_NAME ("ut_acquire_from_cache"); + acpi_status status; - cache_info = &acpi_gbl_memory_lists[list_id]; +#ifdef ACPI_DBG_TRACK_ALLOCATIONS -#ifdef ACPI_ENABLE_OBJECT_CACHE + /* Memory allocation lists */ - if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) { - return (NULL); + status = acpi_ut_create_list ("Acpi-Global", 0, + &acpi_gbl_global_list); + if (ACPI_FAILURE (status)) { + return (status); } - ACPI_MEM_TRACKING (cache_info->cache_requests++); - - /* Check the cache first */ - - if (cache_info->list_head) { - /* There is an object available, use it */ - - object = cache_info->list_head; - cache_info->list_head = *(ACPI_CAST_INDIRECT_PTR (char, - &(((char *) object)[cache_info->link_offset]))); - - ACPI_MEM_TRACKING (cache_info->cache_hits++); - cache_info->cache_depth--; - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n", - object, acpi_gbl_memory_lists[list_id].list_name)); + status = acpi_ut_create_list ("Acpi-Namespace", sizeof (struct acpi_namespace_node), + &acpi_gbl_ns_node_list); + if (ACPI_FAILURE (status)) { + return (status); + } #endif - if (ACPI_FAILURE (acpi_ut_release_mutex (ACPI_MTX_CACHES))) { - return (NULL); - } - - /* Clear (zero) the previously used Object */ + /* Object Caches, for frequently used objects */ - ACPI_MEMSET (object, 0, cache_info->object_size); + status = acpi_os_create_cache ("acpi_state", sizeof (union acpi_generic_state), + ACPI_MAX_STATE_CACHE_DEPTH, &acpi_gbl_state_cache); + if (ACPI_FAILURE (status)) { + return (status); } - else { - /* The cache is empty, create a new object */ - - /* Avoid deadlock with ACPI_MEM_CALLOCATE */ - - if (ACPI_FAILURE (acpi_ut_release_mutex (ACPI_MTX_CACHES))) { - return (NULL); - } - - object = ACPI_MEM_CALLOCATE (cache_info->object_size); - ACPI_MEM_TRACKING (cache_info->total_allocated++); + status = acpi_os_create_cache ("acpi_parse", sizeof (struct acpi_parse_obj_common), + ACPI_MAX_PARSE_CACHE_DEPTH, &acpi_gbl_ps_node_cache); + if (ACPI_FAILURE (status)) { + return (status); } -#else - - /* Object cache is disabled; just allocate the object */ + status = acpi_os_create_cache ("acpi_parse_ext", sizeof (struct acpi_parse_obj_named), + ACPI_MAX_EXTPARSE_CACHE_DEPTH, &acpi_gbl_ps_node_ext_cache); + if (ACPI_FAILURE (status)) { + return (status); + } - object = ACPI_MEM_CALLOCATE (cache_info->object_size); - ACPI_MEM_TRACKING (cache_info->total_allocated++); -#endif + status = acpi_os_create_cache ("acpi_operand", sizeof (union acpi_operand_object), + ACPI_MAX_OBJECT_CACHE_DEPTH, &acpi_gbl_operand_cache); + if (ACPI_FAILURE (status)) { + return (status); + } - return (object); + return (AE_OK); } -#ifdef ACPI_ENABLE_OBJECT_CACHE /******************************************************************************* * - * FUNCTION: acpi_ut_delete_generic_cache + * FUNCTION: acpi_ut_delete_caches * - * PARAMETERS: list_id - Memory list ID + * PARAMETERS: None * - * RETURN: None + * RETURN: Status * - * DESCRIPTION: Free all objects within the requested cache. + * DESCRIPTION: Purge and delete all local caches * ******************************************************************************/ -void -acpi_ut_delete_generic_cache ( - u32 list_id) +acpi_status +acpi_ut_delete_caches ( + void) { - struct acpi_memory_list *cache_info; - char *next; + (void) acpi_os_delete_cache (acpi_gbl_state_cache); + acpi_gbl_state_cache = NULL; - ACPI_FUNCTION_ENTRY (); - + (void) acpi_os_delete_cache (acpi_gbl_operand_cache); + acpi_gbl_operand_cache = NULL; - cache_info = &acpi_gbl_memory_lists[list_id]; - while (cache_info->list_head) { - /* Delete one cached state object */ + (void) acpi_os_delete_cache (acpi_gbl_ps_node_cache); + acpi_gbl_ps_node_cache = NULL; - next = *(ACPI_CAST_INDIRECT_PTR (char, - &(((char *) cache_info->list_head)[cache_info->link_offset]))); - ACPI_MEM_FREE (cache_info->list_head); + (void) acpi_os_delete_cache (acpi_gbl_ps_node_ext_cache); + acpi_gbl_ps_node_ext_cache = NULL; - cache_info->list_head = next; - cache_info->cache_depth--; - } + return (AE_OK); } -#endif - /******************************************************************************* * @@ -500,6 +410,43 @@ acpi_ut_callocate ( * 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); +} + /******************************************************************************* * @@ -533,15 +480,15 @@ acpi_ut_allocate_and_track ( return (NULL); } - status = acpi_ut_track_allocation (ACPI_MEM_LIST_GLOBAL, allocation, size, + 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_memory_lists[ACPI_MEM_LIST_GLOBAL].total_allocated++; - acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size += (u32) size; + acpi_gbl_global_list->total_allocated++; + acpi_gbl_global_list->current_total_size += (u32) size; return ((void *) &allocation->user_space); } @@ -583,15 +530,15 @@ acpi_ut_callocate_and_track ( return (NULL); } - status = acpi_ut_track_allocation (ACPI_MEM_LIST_GLOBAL, allocation, size, + 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_memory_lists[ACPI_MEM_LIST_GLOBAL].total_allocated++; - acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size += (u32) size; + acpi_gbl_global_list->total_allocated++; + acpi_gbl_global_list->current_total_size += (u32) size; return ((void *) &allocation->user_space); } @@ -636,10 +583,10 @@ acpi_ut_free_and_track ( debug_block = ACPI_CAST_PTR (struct acpi_debug_mem_block, (((char *) allocation) - sizeof (struct acpi_debug_mem_header))); - acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].total_freed++; - acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size -= debug_block->size; + acpi_gbl_global_list->total_freed++; + acpi_gbl_global_list->current_total_size -= debug_block->size; - status = acpi_ut_remove_allocation (ACPI_MEM_LIST_GLOBAL, debug_block, + status = acpi_ut_remove_allocation (debug_block, component, module, line); if (ACPI_FAILURE (status)) { ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not free memory, %s\n", @@ -658,8 +605,7 @@ acpi_ut_free_and_track ( * * FUNCTION: acpi_ut_find_allocation * - * PARAMETERS: list_id - Memory list to search - * Allocation - Address of allocated memory + * PARAMETERS: Allocation - Address of allocated memory * * RETURN: A list element if found; NULL otherwise. * @@ -669,7 +615,6 @@ acpi_ut_free_and_track ( static struct acpi_debug_mem_block * acpi_ut_find_allocation ( - u32 list_id, void *allocation) { struct acpi_debug_mem_block *element; @@ -678,11 +623,7 @@ acpi_ut_find_allocation ( ACPI_FUNCTION_ENTRY (); - if (list_id > ACPI_MEM_LIST_MAX) { - return (NULL); - } - - element = acpi_gbl_memory_lists[list_id].list_head; + element = acpi_gbl_global_list->list_head; /* Search for the address. */ @@ -702,8 +643,7 @@ acpi_ut_find_allocation ( * * FUNCTION: acpi_ut_track_allocation * - * PARAMETERS: list_id - Memory list to search - * Allocation - Address of allocated memory + * PARAMETERS: Allocation - Address of allocated memory * Size - Size of the allocation * alloc_type - MEM_MALLOC or MEM_CALLOC * Component - Component type of caller @@ -718,7 +658,6 @@ acpi_ut_find_allocation ( static acpi_status acpi_ut_track_allocation ( - u32 list_id, struct acpi_debug_mem_block *allocation, acpi_size size, u8 alloc_type, @@ -734,11 +673,7 @@ acpi_ut_track_allocation ( ACPI_FUNCTION_TRACE_PTR ("ut_track_allocation", allocation); - if (list_id > ACPI_MEM_LIST_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - mem_list = &acpi_gbl_memory_lists[list_id]; + mem_list = acpi_gbl_global_list; status = acpi_ut_acquire_mutex (ACPI_MTX_MEMORY); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); @@ -748,8 +683,7 @@ acpi_ut_track_allocation ( * 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 (list_id, allocation); + element = acpi_ut_find_allocation (allocation); if (element) { ACPI_REPORT_ERROR (( "ut_track_allocation: Allocation already present in list! (%p)\n", @@ -793,8 +727,7 @@ unlock_and_exit: * * FUNCTION: acpi_ut_remove_allocation * - * PARAMETERS: list_id - Memory list to search - * Allocation - Address of allocated memory + * PARAMETERS: Allocation - Address of allocated memory * Component - Component type of caller * Module - Source file name of caller * Line - Line number of caller @@ -807,7 +740,6 @@ unlock_and_exit: static acpi_status acpi_ut_remove_allocation ( - u32 list_id, struct acpi_debug_mem_block *allocation, u32 component, char *module, @@ -820,11 +752,7 @@ acpi_ut_remove_allocation ( ACPI_FUNCTION_TRACE ("ut_remove_allocation"); - if (list_id > ACPI_MEM_LIST_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - mem_list = &acpi_gbl_memory_lists[list_id]; + mem_list = acpi_gbl_global_list; if (NULL == mem_list->list_head) { /* No allocations! */ @@ -959,7 +887,7 @@ acpi_ut_dump_allocations ( return; } - element = acpi_gbl_memory_lists[0].list_head; + element = acpi_gbl_global_list->list_head; while (element) { if ((element->component & component) && ((module == NULL) || (0 == ACPI_STRCMP (module, element->module)))) { diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c new file mode 100644 index 000000000000..c0df0585c683 --- /dev/null +++ b/drivers/acpi/utilities/utcache.c @@ -0,0 +1,328 @@ +/****************************************************************************** + * + * Module Name: utcache - local cache allocation routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2005, R. Byron Moore + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include <acpi/acpi.h> + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utcache") + + +#ifdef ACPI_USE_LOCAL_CACHE +/******************************************************************************* + * + * FUNCTION: acpi_os_create_cache + * + * PARAMETERS: cache_name - Ascii name for the cache + * object_size - Size of each cached object + * max_depth - Maximum depth of the cache (in objects) + * return_cache - Where the new cache object is returned + * + * RETURN: Status + * + * DESCRIPTION: Create a cache object + * + ******************************************************************************/ + +acpi_status +acpi_os_create_cache ( + char *cache_name, + u16 object_size, + u16 max_depth, + struct acpi_memory_list **return_cache) +{ + struct acpi_memory_list *cache; + + + ACPI_FUNCTION_ENTRY (); + + + if (!cache_name || !return_cache || (object_size < 16)) { + return (AE_BAD_PARAMETER); + } + + /* Create the cache object */ + + cache = acpi_os_allocate (sizeof (struct acpi_memory_list)); + if (!cache) { + return (AE_NO_MEMORY); + } + + /* Populate the cache object and return it */ + + ACPI_MEMSET (cache, 0, sizeof (struct acpi_memory_list)); + cache->link_offset = 8; + cache->list_name = cache_name; + cache->object_size = object_size; + cache->max_depth = max_depth; + + *return_cache = cache; + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_os_purge_cache + * + * PARAMETERS: Cache - Handle to cache object + * + * RETURN: Status + * + * DESCRIPTION: Free all objects within the requested cache. + * + ******************************************************************************/ + +acpi_status +acpi_os_purge_cache ( + struct acpi_memory_list *cache) +{ + char *next; + + + ACPI_FUNCTION_ENTRY (); + + + if (!cache) { + return (AE_BAD_PARAMETER); + } + + /* Walk the list of objects in this cache */ + + while (cache->list_head) { + /* Delete and unlink one cached state object */ + + next = *(ACPI_CAST_INDIRECT_PTR (char, + &(((char *) cache->list_head)[cache->link_offset]))); + ACPI_MEM_FREE (cache->list_head); + + cache->list_head = next; + cache->current_depth--; + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_os_delete_cache + * + * PARAMETERS: Cache - Handle to cache object + * + * RETURN: Status + * + * DESCRIPTION: Free all objects within the requested cache and delete the + * cache object. + * + ******************************************************************************/ + +acpi_status +acpi_os_delete_cache ( + struct acpi_memory_list *cache) +{ + acpi_status status; + + + ACPI_FUNCTION_ENTRY (); + + + /* Purge all objects in the cache */ + + status = acpi_os_purge_cache (cache); + if (ACPI_FAILURE (status)) { + return (status); + } + + /* Now we can delete the cache object */ + + acpi_os_free (cache); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_os_release_object + * + * PARAMETERS: Cache - Handle to cache object + * Object - The object to be released + * + * RETURN: None + * + * DESCRIPTION: Release an object to the specified cache. If cache is full, + * the object is deleted. + * + ******************************************************************************/ + +acpi_status +acpi_os_release_object ( + struct acpi_memory_list *cache, + void *object) +{ + acpi_status status; + + + ACPI_FUNCTION_ENTRY (); + + + if (!cache || !object) { + return (AE_BAD_PARAMETER); + } + + /* If cache is full, just free this object */ + + if (cache->current_depth >= cache->max_depth) { + ACPI_MEM_FREE (object); + ACPI_MEM_TRACKING (cache->total_freed++); + } + + /* Otherwise put this object back into the cache */ + + else { + status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return (status); + } + + /* Mark the object as cached */ + + ACPI_MEMSET (object, 0xCA, cache->object_size); + ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_CACHED); + + /* Put the object at the head of the cache list */ + + * (ACPI_CAST_INDIRECT_PTR (char, + &(((char *) object)[cache->link_offset]))) = cache->list_head; + cache->list_head = object; + cache->current_depth++; + + (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_os_acquire_object + * + * PARAMETERS: Cache - Handle to cache object + * + * RETURN: the acquired object. NULL on error + * + * DESCRIPTION: Get an object from the specified cache. If cache is empty, + * the object is allocated. + * + ******************************************************************************/ + +void * +acpi_os_acquire_object ( + struct acpi_memory_list *cache) +{ + acpi_status status; + void *object; + + + ACPI_FUNCTION_NAME ("os_acquire_object"); + + + if (!cache) { + return (NULL); + } + + status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return (NULL); + } + + ACPI_MEM_TRACKING (cache->requests++); + + /* Check the cache first */ + + if (cache->list_head) { + /* There is an object available, use it */ + + object = cache->list_head; + cache->list_head = *(ACPI_CAST_INDIRECT_PTR (char, + &(((char *) object)[cache->link_offset]))); + + cache->current_depth--; + + ACPI_MEM_TRACKING (cache->hits++); + ACPI_MEM_TRACKING (ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Object %p from %s cache\n", object, cache->list_name))); + + status = acpi_ut_release_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return (NULL); + } + + /* Clear (zero) the previously used Object */ + + ACPI_MEMSET (object, 0, cache->object_size); + } + else { + /* The cache is empty, create a new object */ + + ACPI_MEM_TRACKING (cache->total_allocated++); + + /* Avoid deadlock with ACPI_MEM_CALLOCATE */ + + status = acpi_ut_release_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return (NULL); + } + + object = ACPI_MEM_CALLOCATE (cache->object_size); + if (!object) { + return (NULL); + } + } + + return (object); +} +#endif /* ACPI_USE_LOCAL_CACHE */ + + diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index 11e884957162..31c30a32e5c9 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -694,58 +694,50 @@ acpi_ut_copy_simple_object ( dest_desc->common.reference_count = reference_count; dest_desc->common.next_object = next_object; + /* New object is not static, regardless of source */ + + dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER; + /* Handle the objects with extra data */ switch (ACPI_GET_OBJECT_TYPE (dest_desc)) { case ACPI_TYPE_BUFFER: - - dest_desc->buffer.node = NULL; - dest_desc->common.flags = source_desc->common.flags; - /* * Allocate and copy the actual buffer if and only if: * 1) There is a valid buffer pointer - * 2) The buffer is not static (not in an ACPI table) (in this case, - * the actual pointer was already copied above) + * 2) The buffer has a length > 0 */ if ((source_desc->buffer.pointer) && - (!(source_desc->common.flags & AOPOBJ_STATIC_POINTER))) { - dest_desc->buffer.pointer = NULL; - - /* Create an actual buffer only if length > 0 */ - - if (source_desc->buffer.length) { - dest_desc->buffer.pointer = - ACPI_MEM_ALLOCATE (source_desc->buffer.length); - if (!dest_desc->buffer.pointer) { - return (AE_NO_MEMORY); - } + (source_desc->buffer.length)) { + dest_desc->buffer.pointer = + ACPI_MEM_ALLOCATE (source_desc->buffer.length); + if (!dest_desc->buffer.pointer) { + return (AE_NO_MEMORY); + } - /* Copy the actual buffer data */ + /* Copy the actual buffer data */ - ACPI_MEMCPY (dest_desc->buffer.pointer, - source_desc->buffer.pointer, - source_desc->buffer.length); - } + ACPI_MEMCPY (dest_desc->buffer.pointer, + source_desc->buffer.pointer, + source_desc->buffer.length); } break; case ACPI_TYPE_STRING: - /* * Allocate and copy the actual string if and only if: * 1) There is a valid string pointer - * 2) The string is not static (not in an ACPI table) (in this case, - * the actual pointer was already copied above) + * (Pointer to a NULL string is allowed) */ - if ((source_desc->string.pointer) && - (!(source_desc->common.flags & AOPOBJ_STATIC_POINTER))) { + if (source_desc->string.pointer) { dest_desc->string.pointer = ACPI_MEM_ALLOCATE ((acpi_size) source_desc->string.length + 1); if (!dest_desc->string.pointer) { return (AE_NO_MEMORY); } + /* Copy the actual string data */ + ACPI_MEMCPY (dest_desc->string.pointer, source_desc->string.pointer, (acpi_size) source_desc->string.length + 1); } diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c index 794c7df3f2ad..c27cbb7f5c54 100644 --- a/drivers/acpi/utilities/utdebug.c +++ b/drivers/acpi/utilities/utdebug.c @@ -55,6 +55,12 @@ static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF; static char *acpi_gbl_fn_entry_str = "----Entry"; static char *acpi_gbl_fn_exit_str = "----Exit-"; +/* Local prototypes */ + +static const char * +acpi_ut_trim_function_name ( + const char *function_name); + /******************************************************************************* * @@ -72,7 +78,7 @@ void acpi_ut_init_stack_ptr_trace ( void) { - u32 current_sp; + u32 current_sp; acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF (¤t_sp, NULL); @@ -95,7 +101,7 @@ void acpi_ut_track_stack_ptr ( void) { - acpi_size current_sp; + acpi_size current_sp; current_sp = ACPI_PTR_DIFF (¤t_sp, NULL); @@ -112,14 +118,50 @@ acpi_ut_track_stack_ptr ( /******************************************************************************* * + * FUNCTION: acpi_ut_trim_function_name + * + * PARAMETERS: function_name - Ascii string containing a procedure name + * + * RETURN: Updated pointer to the function name + * + * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. + * This allows compiler macros such as __FUNCTION__ to be used + * with no change to the debug output. + * + ******************************************************************************/ + +static const char * +acpi_ut_trim_function_name ( + const char *function_name) +{ + + /* All Function names are longer than 4 chars, check is safe */ + + if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX1) { + /* This is the case where the original source has not been modified */ + + return (function_name + 4); + } + + if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX2) { + /* This is the case where the source has been 'linuxized' */ + + return (function_name + 5); + } + + return (function_name); +} + + +/******************************************************************************* + * * FUNCTION: acpi_ut_debug_print * * PARAMETERS: requested_debug_level - Requested debug print level * line_number - Caller's line number (for error output) - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Format - Printf format field * ... - Optional printf arguments * @@ -134,7 +176,9 @@ void ACPI_INTERNAL_VAR_XFACE acpi_ut_debug_print ( u32 requested_debug_level, u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, char *format, ...) { @@ -146,7 +190,7 @@ acpi_ut_debug_print ( * Stay silent if the debug level or component ID is disabled */ if (!(requested_debug_level & acpi_dbg_level) || - !(dbg_info->component_id & acpi_dbg_layer)) { + !(component_id & acpi_dbg_layer)) { return; } @@ -169,14 +213,14 @@ acpi_ut_debug_print ( * Display the module name, current line number, thread ID (if requested), * current procedure nesting level, and the current procedure name */ - acpi_os_printf ("%8s-%04ld ", dbg_info->module_name, line_number); + acpi_os_printf ("%8s-%04ld ", module_name, line_number); if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf ("[%04lX] ", thread_id); } acpi_os_printf ("[%02ld] %-22.22s: ", - acpi_gbl_nesting_level, dbg_info->proc_name); + acpi_gbl_nesting_level, acpi_ut_trim_function_name (function_name)); va_start (args, format); acpi_os_vprintf (format, args); @@ -190,10 +234,9 @@ EXPORT_SYMBOL(acpi_ut_debug_print); * * PARAMETERS: requested_debug_level - Requested debug print level * line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Format - Printf format field * ... - Optional printf arguments * @@ -208,7 +251,9 @@ void ACPI_INTERNAL_VAR_XFACE acpi_ut_debug_print_raw ( u32 requested_debug_level, u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, char *format, ...) { @@ -216,7 +261,7 @@ acpi_ut_debug_print_raw ( if (!(requested_debug_level & acpi_dbg_level) || - !(dbg_info->component_id & acpi_dbg_layer)) { + !(component_id & acpi_dbg_layer)) { return; } @@ -231,10 +276,9 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw); * FUNCTION: acpi_ut_trace * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * * RETURN: None * @@ -246,14 +290,17 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw); void acpi_ut_trace ( u32 line_number, - struct acpi_debug_print_info *dbg_info) + const char *function_name, + char *module_name, + u32 component_id) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr (); - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s\n", acpi_gbl_fn_entry_str); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s\n", acpi_gbl_fn_entry_str); } EXPORT_SYMBOL(acpi_ut_trace); @@ -263,10 +310,9 @@ EXPORT_SYMBOL(acpi_ut_trace); * FUNCTION: acpi_ut_trace_ptr * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Pointer - Pointer to display * * RETURN: None @@ -279,14 +325,17 @@ EXPORT_SYMBOL(acpi_ut_trace); void acpi_ut_trace_ptr ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, void *pointer) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr (); - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %p\n", acpi_gbl_fn_entry_str, pointer); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %p\n", acpi_gbl_fn_entry_str, pointer); } @@ -295,10 +344,9 @@ acpi_ut_trace_ptr ( * FUNCTION: acpi_ut_trace_str * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * String - Additional string to display * * RETURN: None @@ -311,15 +359,18 @@ acpi_ut_trace_ptr ( void acpi_ut_trace_str ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, char *string) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr (); - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %s\n", acpi_gbl_fn_entry_str, string); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %s\n", acpi_gbl_fn_entry_str, string); } @@ -328,10 +379,9 @@ acpi_ut_trace_str ( * FUNCTION: acpi_ut_trace_u32 * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Integer - Integer to display * * RETURN: None @@ -344,15 +394,18 @@ acpi_ut_trace_str ( void acpi_ut_trace_u32 ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, u32 integer) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr (); - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %08X\n", acpi_gbl_fn_entry_str, integer); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %08X\n", acpi_gbl_fn_entry_str, integer); } @@ -361,10 +414,9 @@ acpi_ut_trace_u32 ( * FUNCTION: acpi_ut_exit * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * * RETURN: None * @@ -376,11 +428,14 @@ acpi_ut_trace_u32 ( void acpi_ut_exit ( u32 line_number, - struct acpi_debug_print_info *dbg_info) + const char *function_name, + char *module_name, + u32 component_id) { - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s\n", acpi_gbl_fn_exit_str); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s\n", acpi_gbl_fn_exit_str); acpi_gbl_nesting_level--; } @@ -392,10 +447,9 @@ EXPORT_SYMBOL(acpi_ut_exit); * FUNCTION: acpi_ut_status_exit * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Status - Exit status code * * RETURN: None @@ -408,19 +462,23 @@ EXPORT_SYMBOL(acpi_ut_exit); void acpi_ut_status_exit ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, acpi_status status) { if (ACPI_SUCCESS (status)) { - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %s\n", acpi_gbl_fn_exit_str, - acpi_format_exception (status)); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %s\n", acpi_gbl_fn_exit_str, + acpi_format_exception (status)); } else { - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s ****Exception****: %s\n", acpi_gbl_fn_exit_str, - acpi_format_exception (status)); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s ****Exception****: %s\n", acpi_gbl_fn_exit_str, + acpi_format_exception (status)); } acpi_gbl_nesting_level--; @@ -433,10 +491,9 @@ EXPORT_SYMBOL(acpi_ut_status_exit); * FUNCTION: acpi_ut_value_exit * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Value - Value to be printed with exit msg * * RETURN: None @@ -449,13 +506,16 @@ EXPORT_SYMBOL(acpi_ut_status_exit); void acpi_ut_value_exit ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, acpi_integer value) { - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str, - ACPI_FORMAT_UINT64 (value)); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str, + ACPI_FORMAT_UINT64 (value)); acpi_gbl_nesting_level--; } @@ -467,10 +527,9 @@ EXPORT_SYMBOL(acpi_ut_value_exit); * FUNCTION: acpi_ut_ptr_exit * * PARAMETERS: line_number - Caller's line number - * dbg_info - Contains: - * proc_name - Caller's procedure name - * module_name - Caller's module name - * component_id - Caller's component ID + * function_name - Caller's procedure name + * module_name - Caller's module name + * component_id - Caller's component ID * Ptr - Pointer to display * * RETURN: None @@ -483,12 +542,15 @@ EXPORT_SYMBOL(acpi_ut_value_exit); void acpi_ut_ptr_exit ( u32 line_number, - struct acpi_debug_print_info *dbg_info, + const char *function_name, + char *module_name, + u32 component_id, u8 *ptr) { - acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info, - "%s %p\n", acpi_gbl_fn_exit_str, ptr); + acpi_ut_debug_print (ACPI_LV_FUNCTIONS, + line_number, function_name, module_name, component_id, + "%s %p\n", acpi_gbl_fn_exit_str, ptr); acpi_gbl_nesting_level--; } @@ -549,7 +611,7 @@ acpi_ut_dump_buffer ( /* Dump fill spaces */ acpi_os_printf ("%*s", ((display * 2) + 1), " "); - j += display; + j += (acpi_native_uint) display; continue; } @@ -584,12 +646,12 @@ acpi_ut_dump_buffer ( break; } - j += display; + j += (acpi_native_uint) display; } /* - * Print the ASCII equivalent characters - * But watch out for the bad unprintable ones... + * Print the ASCII equivalent characters but watch out for the bad + * unprintable ones (printable chars are 0x20 through 0x7E) */ acpi_os_printf (" "); for (j = 0; j < 16; j++) { @@ -599,9 +661,7 @@ acpi_ut_dump_buffer ( } buf_char = buffer[i + j]; - if ((buf_char > 0x1F && buf_char < 0x2E) || - (buf_char > 0x2F && buf_char < 0x61) || - (buf_char > 0x60 && buf_char < 0x7F)) { + if (ACPI_IS_PRINT (buf_char)) { acpi_os_printf ("%c", buf_char); } else { diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c index bc5403022681..eeafb324c504 100644 --- a/drivers/acpi/utilities/utdelete.c +++ b/drivers/acpi/utilities/utdelete.c @@ -435,35 +435,24 @@ acpi_ut_update_object_reference ( union acpi_operand_object *object, u16 action) { - acpi_status status; - u32 i; - union acpi_generic_state *state_list = NULL; - union acpi_generic_state *state; - union acpi_operand_object *tmp; - - ACPI_FUNCTION_TRACE_PTR ("ut_update_object_reference", object); + acpi_status status = AE_OK; + union acpi_generic_state *state_list = NULL; + union acpi_operand_object *next_object = NULL; + union acpi_generic_state *state; + acpi_native_uint i; - /* Ignore a null object ptr */ - - if (!object) { - return_ACPI_STATUS (AE_OK); - } + ACPI_FUNCTION_TRACE_PTR ("ut_update_object_reference", object); - /* Make sure that this isn't a namespace handle */ - if (ACPI_GET_DESCRIPTOR_TYPE (object) == ACPI_DESC_TYPE_NAMED) { - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, - "Object %p is NS handle\n", object)); - return_ACPI_STATUS (AE_OK); - } + while (object) { + /* Make sure that this isn't a namespace handle */ - state = acpi_ut_create_update_state (object, action); - - while (state) { - object = state->update.object; - action = state->update.value; - acpi_ut_delete_generic_state (state); + if (ACPI_GET_DESCRIPTOR_TYPE (object) == ACPI_DESC_TYPE_NAMED) { + ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, + "Object %p is NS handle\n", object)); + return_ACPI_STATUS (AE_OK); + } /* * All sub-objects must have their reference count incremented also. @@ -472,24 +461,14 @@ acpi_ut_update_object_reference ( switch (ACPI_GET_OBJECT_TYPE (object)) { case ACPI_TYPE_DEVICE: - tmp = object->device.system_notify; - if (tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->device.system_notify = NULL; - acpi_ut_update_ref_count (tmp, action); - - tmp = object->device.device_notify; - if (tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->device.device_notify = NULL; - acpi_ut_update_ref_count (tmp, action); - + acpi_ut_update_ref_count (object->device.system_notify, action); + acpi_ut_update_ref_count (object->device.device_notify, action); break; - case ACPI_TYPE_PACKAGE: - /* - * We must update all the sub-objects of the package - * (Each of whom may have their own sub-objects, etc. + * We must update all the sub-objects of the package, + * each of whom may have their own sub-objects. */ for (i = 0; i < object->package.count; i++) { /* @@ -502,111 +481,52 @@ acpi_ut_update_object_reference ( if (ACPI_FAILURE (status)) { goto error_exit; } - - tmp = object->package.elements[i]; - if (tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->package.elements[i] = NULL; } break; - case ACPI_TYPE_BUFFER_FIELD: - status = acpi_ut_create_update_state_and_push ( - object->buffer_field.buffer_obj, action, &state_list); - if (ACPI_FAILURE (status)) { - goto error_exit; - } - - tmp = object->buffer_field.buffer_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->buffer_field.buffer_obj = NULL; + next_object = object->buffer_field.buffer_obj; break; - case ACPI_TYPE_LOCAL_REGION_FIELD: - status = acpi_ut_create_update_state_and_push ( - object->field.region_obj, action, &state_list); - if (ACPI_FAILURE (status)) { - goto error_exit; - } - - tmp = object->field.region_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->field.region_obj = NULL; - break; - + next_object = object->field.region_obj; + break; case ACPI_TYPE_LOCAL_BANK_FIELD: - status = acpi_ut_create_update_state_and_push ( - object->bank_field.bank_obj, action, &state_list); - if (ACPI_FAILURE (status)) { - goto error_exit; - } - - tmp = object->bank_field.bank_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->bank_field.bank_obj = NULL; - + next_object = object->bank_field.bank_obj; status = acpi_ut_create_update_state_and_push ( object->bank_field.region_obj, action, &state_list); if (ACPI_FAILURE (status)) { goto error_exit; } - - tmp = object->bank_field.region_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->bank_field.region_obj = NULL; break; - case ACPI_TYPE_LOCAL_INDEX_FIELD: - status = acpi_ut_create_update_state_and_push ( - object->index_field.index_obj, action, &state_list); - if (ACPI_FAILURE (status)) { - goto error_exit; - } - - tmp = object->index_field.index_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->index_field.index_obj = NULL; - + next_object = object->index_field.index_obj; status = acpi_ut_create_update_state_and_push ( object->index_field.data_obj, action, &state_list); if (ACPI_FAILURE (status)) { goto error_exit; } - - tmp = object->index_field.data_obj; - if ( tmp && (tmp->common.reference_count <= 1) && action == REF_DECREMENT) - object->index_field.data_obj = NULL; break; - case ACPI_TYPE_LOCAL_REFERENCE: - /* * The target of an Index (a package, string, or buffer) must track * changes to the ref count of the index. */ if (object->reference.opcode == AML_INDEX_OP) { - status = acpi_ut_create_update_state_and_push ( - object->reference.object, action, &state_list); - if (ACPI_FAILURE (status)) { - goto error_exit; - } + next_object = object->reference.object; } break; - case ACPI_TYPE_REGION: default: - - /* No subobjects */ - break; + break;/* No subobjects */ } /* @@ -615,15 +535,23 @@ acpi_ut_update_object_reference ( * main object to be deleted. */ acpi_ut_update_ref_count (object, action); + object = NULL; /* Move on to the next object to be updated */ - state = acpi_ut_pop_generic_state (&state_list); + if (next_object) { + object = next_object; + next_object = NULL; + } + else if (state_list) { + state = acpi_ut_pop_generic_state (&state_list); + object = state->update.object; + acpi_ut_delete_generic_state (state); + } } return_ACPI_STATUS (AE_OK); - error_exit: ACPI_REPORT_ERROR (("Could not update object reference count, %s\n", diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c index 4146019b543f..0e4161c81076 100644 --- a/drivers/acpi/utilities/utglobal.c +++ b/drivers/acpi/utilities/utglobal.c @@ -738,73 +738,6 @@ acpi_ut_valid_object_type ( /******************************************************************************* * - * FUNCTION: acpi_ut_allocate_owner_id - * - * PARAMETERS: id_type - Type of ID (method or table) - * - * DESCRIPTION: Allocate a table or method owner id - * - * NOTE: this algorithm has a wraparound problem at 64_k method invocations, and - * should be revisited (TBD) - * - ******************************************************************************/ - -acpi_owner_id -acpi_ut_allocate_owner_id ( - u32 id_type) -{ - acpi_owner_id owner_id = 0xFFFF; - - - ACPI_FUNCTION_TRACE ("ut_allocate_owner_id"); - - - if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) - { - return (0); - } - - switch (id_type) - { - case ACPI_OWNER_TYPE_TABLE: - - owner_id = acpi_gbl_next_table_owner_id; - acpi_gbl_next_table_owner_id++; - - /* Check for wraparound */ - - if (acpi_gbl_next_table_owner_id == ACPI_FIRST_METHOD_ID) - { - acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID; - ACPI_REPORT_WARNING (("Table owner ID wraparound\n")); - } - break; - - - case ACPI_OWNER_TYPE_METHOD: - - owner_id = acpi_gbl_next_method_owner_id; - acpi_gbl_next_method_owner_id++; - - if (acpi_gbl_next_method_owner_id == ACPI_FIRST_TABLE_ID) - { - /* Check for wraparound */ - - acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID; - } - break; - - default: - break; - } - - (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); - return_VALUE (owner_id); -} - - -/******************************************************************************* - * * FUNCTION: acpi_ut_init_globals * * PARAMETERS: None @@ -820,42 +753,20 @@ void acpi_ut_init_globals ( void) { + acpi_status status; u32 i; ACPI_FUNCTION_TRACE ("ut_init_globals"); - /* Memory allocation and cache lists */ - - ACPI_MEMSET (acpi_gbl_memory_lists, 0, sizeof (struct acpi_memory_list) * ACPI_NUM_MEM_LISTS); + /* Create all memory caches */ - acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_generic_state *) NULL)->common.next), NULL); - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL); - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL); - acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_operand_object *) NULL)->cache.next), NULL); - acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset = (u16) ACPI_PTR_DIFF (&(((struct acpi_walk_state *) NULL)->next), NULL); - - acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size = sizeof (struct acpi_namespace_node); - acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size = sizeof (union acpi_generic_state); - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size = sizeof (struct acpi_parse_obj_common); - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (struct acpi_parse_obj_named); - acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size = sizeof (union acpi_operand_object); - acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size = sizeof (struct acpi_walk_state); - - acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth = ACPI_MAX_STATE_CACHE_DEPTH; - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = ACPI_MAX_PARSE_CACHE_DEPTH; - acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = ACPI_MAX_EXTPARSE_CACHE_DEPTH; - acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = ACPI_MAX_OBJECT_CACHE_DEPTH; - acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth = ACPI_MAX_WALK_CACHE_DEPTH; - - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name = "Global Memory Allocation"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name = "Namespace Nodes"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name = "State Object Cache"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name = "Parse Node Cache"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name = "Operand Object Cache"); - ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name = "Tree Walk Node Cache"); + status = acpi_ut_create_caches (); + if (ACPI_FAILURE (status)) + { + return; + } /* ACPI table structure */ @@ -870,7 +781,7 @@ acpi_ut_init_globals ( for (i = 0; i < NUM_MUTEX; i++) { acpi_gbl_mutex_info[i].mutex = NULL; - acpi_gbl_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED; + acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; acpi_gbl_mutex_info[i].use_count = 0; } @@ -911,8 +822,7 @@ acpi_ut_init_globals ( acpi_gbl_ns_lookup_count = 0; acpi_gbl_ps_find_count = 0; acpi_gbl_acpi_hardware_present = TRUE; - acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID; - acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID; + acpi_gbl_owner_id_mask = 0; acpi_gbl_debugger_configuration = DEBUGGER_THREADING; acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; diff --git a/drivers/acpi/utilities/utinit.c b/drivers/acpi/utilities/utinit.c index 7f3713889ff0..fd7ceba83229 100644 --- a/drivers/acpi/utilities/utinit.c +++ b/drivers/acpi/utilities/utinit.c @@ -264,7 +264,7 @@ acpi_ut_subsystem_shutdown ( /* Purge the local caches */ - (void) acpi_purge_cached_objects (); + (void) acpi_ut_delete_caches (); /* Debug only - display leftover memory allocation, if any */ diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c index f6de4ed3d527..1d350b302a34 100644 --- a/drivers/acpi/utilities/utmisc.c +++ b/drivers/acpi/utilities/utmisc.c @@ -49,15 +49,121 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME ("utmisc") -/* Local prototypes */ -static acpi_status -acpi_ut_create_mutex ( - acpi_mutex_handle mutex_id); +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_owner_id + * + * PARAMETERS: owner_id - Where the new owner ID is returned + * + * RETURN: Status + * + * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to + * track objects created by the table or method, to be deleted + * when the method exits or the table is unloaded. + * + ******************************************************************************/ + +acpi_status +acpi_ut_allocate_owner_id ( + acpi_owner_id *owner_id) +{ + acpi_native_uint i; + acpi_status status; + + + ACPI_FUNCTION_TRACE ("ut_allocate_owner_id"); -static acpi_status -acpi_ut_delete_mutex ( - acpi_mutex_handle mutex_id); + + /* Mutex for the global ID mask */ + + status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); + } + + /* Find a free owner ID */ + + for (i = 0; i < 32; i++) { + if (!(acpi_gbl_owner_id_mask & (1 << i))) { + acpi_gbl_owner_id_mask |= (1 << i); + *owner_id = (acpi_owner_id) (i + 1); + goto exit; + } + } + + /* + * If we are here, all owner_ids have been allocated. This probably should + * not happen since the IDs are reused after deallocation. The IDs are + * allocated upon table load (one per table) and method execution, and + * they are released when a table is unloaded or a method completes + * execution. + */ + *owner_id = 0; + status = AE_OWNER_ID_LIMIT; + ACPI_REPORT_ERROR (( + "Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT\n")); + +exit: + (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); + return_ACPI_STATUS (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_release_owner_id + * + * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD + * + * RETURN: None. No error is returned because we are either exiting a + * control method or unloading a table. Either way, we would + * ignore any error anyway. + * + * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 32 + * + ******************************************************************************/ + +void +acpi_ut_release_owner_id ( + acpi_owner_id *owner_id_ptr) +{ + acpi_owner_id owner_id = *owner_id_ptr; + acpi_status status; + + + ACPI_FUNCTION_TRACE ("ut_release_owner_id"); + + + /* Always clear the input owner_id (zero is an invalid ID) */ + + *owner_id_ptr = 0; + + /* Zero is not a valid owner_iD */ + + if ((owner_id == 0) || (owner_id > 32)) { + ACPI_REPORT_ERROR (("Invalid owner_id: %2.2X\n", owner_id)); + return_VOID; + } + + /* Mutex for the global ID mask */ + + status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); + if (ACPI_FAILURE (status)) { + return_VOID; + } + + owner_id--; /* Normalize to zero */ + + /* Free the owner ID only if it is valid */ + + if (acpi_gbl_owner_id_mask & (1 << owner_id)) { + acpi_gbl_owner_id_mask ^= (1 << owner_id); + } + + (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); + return_VOID; +} /******************************************************************************* @@ -66,7 +172,7 @@ acpi_ut_delete_mutex ( * * PARAMETERS: src_string - The source string to convert * - * RETURN: Converted src_string (same as input pointer) + * RETURN: None * * DESCRIPTION: Convert string to uppercase * @@ -74,7 +180,7 @@ acpi_ut_delete_mutex ( * ******************************************************************************/ -char * +void acpi_ut_strupr ( char *src_string) { @@ -84,13 +190,17 @@ acpi_ut_strupr ( ACPI_FUNCTION_ENTRY (); + if (!src_string) { + return; + } + /* Walk entire string, uppercasing the letters */ for (string = src_string; *string; string++) { *string = (char) ACPI_TOUPPER (*string); } - return (src_string); + return; } @@ -543,320 +653,6 @@ error_exit: /******************************************************************************* * - * FUNCTION: acpi_ut_mutex_initialize - * - * PARAMETERS: None. - * - * RETURN: Status - * - * DESCRIPTION: Create the system mutex objects. - * - ******************************************************************************/ - -acpi_status -acpi_ut_mutex_initialize ( - void) -{ - u32 i; - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ut_mutex_initialize"); - - - /* - * Create each of the predefined mutex objects - */ - for (i = 0; i < NUM_MUTEX; i++) { - status = acpi_ut_create_mutex (i); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - } - - status = acpi_os_create_lock (&acpi_gbl_gpe_lock); - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_mutex_terminate - * - * PARAMETERS: None. - * - * RETURN: None. - * - * DESCRIPTION: Delete all of the system mutex objects. - * - ******************************************************************************/ - -void -acpi_ut_mutex_terminate ( - void) -{ - u32 i; - - - ACPI_FUNCTION_TRACE ("ut_mutex_terminate"); - - - /* - * Delete each predefined mutex object - */ - for (i = 0; i < NUM_MUTEX; i++) { - (void) acpi_ut_delete_mutex (i); - } - - acpi_os_delete_lock (acpi_gbl_gpe_lock); - return_VOID; -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be created - * - * RETURN: Status - * - * DESCRIPTION: Create a mutex object. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_create_mutex ( - acpi_mutex_handle mutex_id) -{ - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE_U32 ("ut_create_mutex", mutex_id); - - - if (mutex_id > MAX_MUTEX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - if (!acpi_gbl_mutex_info[mutex_id].mutex) { - status = acpi_os_create_semaphore (1, 1, - &acpi_gbl_mutex_info[mutex_id].mutex); - acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED; - acpi_gbl_mutex_info[mutex_id].use_count = 0; - } - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be deleted - * - * RETURN: Status - * - * DESCRIPTION: Delete a mutex object. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_delete_mutex ( - acpi_mutex_handle mutex_id) -{ - acpi_status status; - - - ACPI_FUNCTION_TRACE_U32 ("ut_delete_mutex", mutex_id); - - - if (mutex_id > MAX_MUTEX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - status = acpi_os_delete_semaphore (acpi_gbl_mutex_info[mutex_id].mutex); - - acpi_gbl_mutex_info[mutex_id].mutex = NULL; - acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED; - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_acquire_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be acquired - * - * RETURN: Status - * - * DESCRIPTION: Acquire a mutex object. - * - ******************************************************************************/ - -acpi_status -acpi_ut_acquire_mutex ( - acpi_mutex_handle mutex_id) -{ - acpi_status status; - u32 this_thread_id; - - - ACPI_FUNCTION_NAME ("ut_acquire_mutex"); - - - if (mutex_id > MAX_MUTEX) { - return (AE_BAD_PARAMETER); - } - - this_thread_id = acpi_os_get_thread_id (); - -#ifdef ACPI_MUTEX_DEBUG - { - u32 i; - /* - * Mutex debug code, for internal debugging only. - * - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than or equal to this one. If so, the thread has violated - * the mutex ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < MAX_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { - if (i == mutex_id) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Mutex [%s] already acquired by this thread [%X]\n", - acpi_ut_get_mutex_name (mutex_id), this_thread_id)); - - return (AE_ALREADY_ACQUIRED); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Invalid acquire order: Thread %X owns [%s], wants [%s]\n", - this_thread_id, acpi_ut_get_mutex_name (i), - acpi_ut_get_mutex_name (mutex_id))); - - return (AE_ACQUIRE_DEADLOCK); - } - } - } -#endif - - ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, - "Thread %X attempting to acquire Mutex [%s]\n", - this_thread_id, acpi_ut_get_mutex_name (mutex_id))); - - status = acpi_os_wait_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, - 1, ACPI_WAIT_FOREVER); - if (ACPI_SUCCESS (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n", - this_thread_id, acpi_ut_get_mutex_name (mutex_id))); - - acpi_gbl_mutex_info[mutex_id].use_count++; - acpi_gbl_mutex_info[mutex_id].owner_id = this_thread_id; - } - else { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Thread %X could not acquire Mutex [%s] %s\n", - this_thread_id, acpi_ut_get_mutex_name (mutex_id), - acpi_format_exception (status))); - } - - return (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_release_mutex - * - * PARAMETERS: mutex_iD - ID of the mutex to be released - * - * RETURN: Status - * - * DESCRIPTION: Release a mutex object. - * - ******************************************************************************/ - -acpi_status -acpi_ut_release_mutex ( - acpi_mutex_handle mutex_id) -{ - acpi_status status; - u32 i; - u32 this_thread_id; - - - ACPI_FUNCTION_NAME ("ut_release_mutex"); - - - this_thread_id = acpi_os_get_thread_id (); - ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, - "Thread %X releasing Mutex [%s]\n", this_thread_id, - acpi_ut_get_mutex_name (mutex_id))); - - if (mutex_id > MAX_MUTEX) { - return (AE_BAD_PARAMETER); - } - - /* - * Mutex must be acquired in order to release it! - */ - if (acpi_gbl_mutex_info[mutex_id].owner_id == ACPI_MUTEX_NOT_ACQUIRED) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Mutex [%s] is not acquired, cannot release\n", - acpi_ut_get_mutex_name (mutex_id))); - - return (AE_NOT_ACQUIRED); - } - - /* - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than this one. If so, the thread has violated the mutex - * ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < MAX_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { - if (i == mutex_id) { - continue; - } - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Invalid release order: owns [%s], releasing [%s]\n", - acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); - - return (AE_RELEASE_DEADLOCK); - } - } - - /* Mark unlocked FIRST */ - - acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED; - - status = acpi_os_signal_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, 1); - - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Thread %X could not release Mutex [%s] %s\n", - this_thread_id, acpi_ut_get_mutex_name (mutex_id), - acpi_format_exception (status))); - } - else { - ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n", - this_thread_id, acpi_ut_get_mutex_name (mutex_id))); - } - - return (status); -} - - -/******************************************************************************* - * * FUNCTION: acpi_ut_create_update_state_and_push * * PARAMETERS: Object - Object to be added to the new state @@ -899,361 +695,6 @@ acpi_ut_create_update_state_and_push ( /******************************************************************************* * - * FUNCTION: acpi_ut_create_pkg_state_and_push - * - * PARAMETERS: Object - Object to be added to the new state - * Action - Increment/Decrement - * state_list - List the state will be added to - * - * RETURN: Status - * - * DESCRIPTION: Create a new state and push it - * - ******************************************************************************/ - -#ifdef ACPI_FUTURE_USAGE -acpi_status -acpi_ut_create_pkg_state_and_push ( - void *internal_object, - void *external_object, - u16 index, - union acpi_generic_state **state_list) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_ENTRY (); - - - state = acpi_ut_create_pkg_state (internal_object, external_object, index); - if (!state) { - return (AE_NO_MEMORY); - } - - acpi_ut_push_generic_state (state_list, state); - return (AE_OK); -} -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_ut_push_generic_state - * - * PARAMETERS: list_head - Head of the state stack - * State - State object to push - * - * RETURN: None - * - * DESCRIPTION: Push a state object onto a state stack - * - ******************************************************************************/ - -void -acpi_ut_push_generic_state ( - union acpi_generic_state **list_head, - union acpi_generic_state *state) -{ - ACPI_FUNCTION_TRACE ("ut_push_generic_state"); - - - /* Push the state object onto the front of the list (stack) */ - - state->common.next = *list_head; - *list_head = state; - - return_VOID; -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_pop_generic_state - * - * PARAMETERS: list_head - Head of the state stack - * - * RETURN: The popped state object - * - * DESCRIPTION: Pop a state object from a state stack - * - ******************************************************************************/ - -union acpi_generic_state * -acpi_ut_pop_generic_state ( - union acpi_generic_state **list_head) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_TRACE ("ut_pop_generic_state"); - - - /* Remove the state object at the head of the list (stack) */ - - state = *list_head; - if (state) { - /* Update the list head */ - - *list_head = state->common.next; - } - - return_PTR (state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_generic_state - * - * PARAMETERS: None - * - * RETURN: The new state object. NULL on failure. - * - * DESCRIPTION: Create a generic state object. Attempt to obtain one from - * the global state cache; If none available, create a new one. - * - ******************************************************************************/ - -union acpi_generic_state * -acpi_ut_create_generic_state ( - void) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_ENTRY (); - - - state = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_STATE); - - /* Initialize */ - - if (state) { - state->common.data_type = ACPI_DESC_TYPE_STATE; - } - - return (state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_thread_state - * - * PARAMETERS: None - * - * RETURN: New Thread State. NULL on failure - * - * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used - * to track per-thread info during method execution - * - ******************************************************************************/ - -struct acpi_thread_state * -acpi_ut_create_thread_state ( - void) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_TRACE ("ut_create_thread_state"); - - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state (); - if (!state) { - return_PTR (NULL); - } - - /* Init fields specific to the update struct */ - - state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD; - state->thread.thread_id = acpi_os_get_thread_id (); - - return_PTR ((struct acpi_thread_state *) state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_update_state - * - * PARAMETERS: Object - Initial Object to be installed in the state - * Action - Update action to be performed - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create an "Update State" - a flavor of the generic state used - * to update reference counts and delete complex objects such - * as packages. - * - ******************************************************************************/ - -union acpi_generic_state * -acpi_ut_create_update_state ( - union acpi_operand_object *object, - u16 action) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_TRACE_PTR ("ut_create_update_state", object); - - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state (); - if (!state) { - return_PTR (NULL); - } - - /* Init fields specific to the update struct */ - - state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE; - state->update.object = object; - state->update.value = action; - - return_PTR (state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_pkg_state - * - * PARAMETERS: Object - Initial Object to be installed in the state - * Action - Update action to be performed - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create a "Package State" - * - ******************************************************************************/ - -union acpi_generic_state * -acpi_ut_create_pkg_state ( - void *internal_object, - void *external_object, - u16 index) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_TRACE_PTR ("ut_create_pkg_state", internal_object); - - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state (); - if (!state) { - return_PTR (NULL); - } - - /* Init fields specific to the update struct */ - - state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE; - state->pkg.source_object = (union acpi_operand_object *) internal_object; - state->pkg.dest_object = external_object; - state->pkg.index = index; - state->pkg.num_packages = 1; - - return_PTR (state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_control_state - * - * PARAMETERS: None - * - * RETURN: New state object, null on failure - * - * DESCRIPTION: Create a "Control State" - a flavor of the generic state used - * to support nested IF/WHILE constructs in the AML. - * - ******************************************************************************/ - -union acpi_generic_state * -acpi_ut_create_control_state ( - void) -{ - union acpi_generic_state *state; - - - ACPI_FUNCTION_TRACE ("ut_create_control_state"); - - - /* Create the generic state object */ - - state = acpi_ut_create_generic_state (); - if (!state) { - return_PTR (NULL); - } - - /* Init fields specific to the control struct */ - - state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL; - state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; - - return_PTR (state); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_generic_state - * - * PARAMETERS: State - The state object to be deleted - * - * RETURN: None - * - * DESCRIPTION: Put a state object back into the global state cache. The object - * is not actually freed at this time. - * - ******************************************************************************/ - -void -acpi_ut_delete_generic_state ( - union acpi_generic_state *state) -{ - ACPI_FUNCTION_TRACE ("ut_delete_generic_state"); - - - acpi_ut_release_to_cache (ACPI_MEM_LIST_STATE, state); - return_VOID; -} - - -#ifdef ACPI_ENABLE_OBJECT_CACHE -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_generic_state_cache - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Purge the global state object cache. Used during subsystem - * termination. - * - ******************************************************************************/ - -void -acpi_ut_delete_generic_state_cache ( - void) -{ - ACPI_FUNCTION_TRACE ("ut_delete_generic_state_cache"); - - - acpi_ut_delete_generic_cache (ACPI_MEM_LIST_STATE); - return_VOID; -} -#endif - - -/******************************************************************************* - * * FUNCTION: acpi_ut_walk_package_tree * * PARAMETERS: source_object - The package to walk diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c new file mode 100644 index 000000000000..0699b6be62b6 --- /dev/null +++ b/drivers/acpi/utilities/utmutex.c @@ -0,0 +1,380 @@ +/******************************************************************************* + * + * Module Name: utmutex - local mutex support + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2005, R. Byron Moore + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include <acpi/acpi.h> + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utmutex") + +/* Local prototypes */ + +static acpi_status +acpi_ut_create_mutex ( + acpi_mutex_handle mutex_id); + +static acpi_status +acpi_ut_delete_mutex ( + acpi_mutex_handle mutex_id); + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_mutex_initialize + * + * PARAMETERS: None. + * + * RETURN: Status + * + * DESCRIPTION: Create the system mutex objects. + * + ******************************************************************************/ + +acpi_status +acpi_ut_mutex_initialize ( + void) +{ + u32 i; + acpi_status status; + + + ACPI_FUNCTION_TRACE ("ut_mutex_initialize"); + + + /* + * Create each of the predefined mutex objects + */ + for (i = 0; i < NUM_MUTEX; i++) { + status = acpi_ut_create_mutex (i); + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); + } + } + + status = acpi_os_create_lock (&acpi_gbl_gpe_lock); + return_ACPI_STATUS (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_mutex_terminate + * + * PARAMETERS: None. + * + * RETURN: None. + * + * DESCRIPTION: Delete all of the system mutex objects. + * + ******************************************************************************/ + +void +acpi_ut_mutex_terminate ( + void) +{ + u32 i; + + + ACPI_FUNCTION_TRACE ("ut_mutex_terminate"); + + + /* + * Delete each predefined mutex object + */ + for (i = 0; i < NUM_MUTEX; i++) { + (void) acpi_ut_delete_mutex (i); + } + + acpi_os_delete_lock (acpi_gbl_gpe_lock); + return_VOID; +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be created + * + * RETURN: Status + * + * DESCRIPTION: Create a mutex object. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_create_mutex ( + acpi_mutex_handle mutex_id) +{ + acpi_status status = AE_OK; + + + ACPI_FUNCTION_TRACE_U32 ("ut_create_mutex", mutex_id); + + + if (mutex_id > MAX_MUTEX) { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + if (!acpi_gbl_mutex_info[mutex_id].mutex) { + status = acpi_os_create_semaphore (1, 1, + &acpi_gbl_mutex_info[mutex_id].mutex); + acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + acpi_gbl_mutex_info[mutex_id].use_count = 0; + } + + return_ACPI_STATUS (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be deleted + * + * RETURN: Status + * + * DESCRIPTION: Delete a mutex object. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_delete_mutex ( + acpi_mutex_handle mutex_id) +{ + acpi_status status; + + + ACPI_FUNCTION_TRACE_U32 ("ut_delete_mutex", mutex_id); + + + if (mutex_id > MAX_MUTEX) { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + status = acpi_os_delete_semaphore (acpi_gbl_mutex_info[mutex_id].mutex); + + acpi_gbl_mutex_info[mutex_id].mutex = NULL; + acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + + return_ACPI_STATUS (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_acquire_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be acquired + * + * RETURN: Status + * + * DESCRIPTION: Acquire a mutex object. + * + ******************************************************************************/ + +acpi_status +acpi_ut_acquire_mutex ( + acpi_mutex_handle mutex_id) +{ + acpi_status status; + u32 this_thread_id; + + + ACPI_FUNCTION_NAME ("ut_acquire_mutex"); + + + if (mutex_id > MAX_MUTEX) { + return (AE_BAD_PARAMETER); + } + + this_thread_id = acpi_os_get_thread_id (); + +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than or equal to this one. If so, the thread has violated + * the mutex ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < MAX_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { + if (i == mutex_id) { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Mutex [%s] already acquired by this thread [%X]\n", + acpi_ut_get_mutex_name (mutex_id), this_thread_id)); + + return (AE_ALREADY_ACQUIRED); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid acquire order: Thread %X owns [%s], wants [%s]\n", + this_thread_id, acpi_ut_get_mutex_name (i), + acpi_ut_get_mutex_name (mutex_id))); + + return (AE_ACQUIRE_DEADLOCK); + } + } + } +#endif + + ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, + "Thread %X attempting to acquire Mutex [%s]\n", + this_thread_id, acpi_ut_get_mutex_name (mutex_id))); + + status = acpi_os_wait_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, + 1, ACPI_WAIT_FOREVER); + if (ACPI_SUCCESS (status)) { + ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n", + this_thread_id, acpi_ut_get_mutex_name (mutex_id))); + + acpi_gbl_mutex_info[mutex_id].use_count++; + acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id; + } + else { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Thread %X could not acquire Mutex [%s] %s\n", + this_thread_id, acpi_ut_get_mutex_name (mutex_id), + acpi_format_exception (status))); + } + + return (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_release_mutex + * + * PARAMETERS: mutex_iD - ID of the mutex to be released + * + * RETURN: Status + * + * DESCRIPTION: Release a mutex object. + * + ******************************************************************************/ + +acpi_status +acpi_ut_release_mutex ( + acpi_mutex_handle mutex_id) +{ + acpi_status status; + u32 this_thread_id; + + + ACPI_FUNCTION_NAME ("ut_release_mutex"); + + + this_thread_id = acpi_os_get_thread_id (); + ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, + "Thread %X releasing Mutex [%s]\n", this_thread_id, + acpi_ut_get_mutex_name (mutex_id))); + + if (mutex_id > MAX_MUTEX) { + return (AE_BAD_PARAMETER); + } + + /* + * Mutex must be acquired in order to release it! + */ + if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Mutex [%s] is not acquired, cannot release\n", + acpi_ut_get_mutex_name (mutex_id))); + + return (AE_NOT_ACQUIRED); + } + +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than this one. If so, the thread has violated the mutex + * ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < MAX_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { + if (i == mutex_id) { + continue; + } + + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid release order: owns [%s], releasing [%s]\n", + acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); + + return (AE_RELEASE_DEADLOCK); + } + } + } +#endif + + /* Mark unlocked FIRST */ + + acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; + + status = acpi_os_signal_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, 1); + + if (ACPI_FAILURE (status)) { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Thread %X could not release Mutex [%s] %s\n", + this_thread_id, acpi_ut_get_mutex_name (mutex_id), + acpi_format_exception (status))); + } + else { + ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n", + this_thread_id, acpi_ut_get_mutex_name (mutex_id))); + } + + return (status); +} + + diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c index cd3899b9cc5a..19178e142951 100644 --- a/drivers/acpi/utilities/utobject.c +++ b/drivers/acpi/utilities/utobject.c @@ -338,7 +338,7 @@ acpi_ut_allocate_object_desc_dbg ( ACPI_FUNCTION_TRACE ("ut_allocate_object_desc_dbg"); - object = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_OPERAND); + object = acpi_os_acquire_object (acpi_gbl_operand_cache); if (!object) { _ACPI_REPORT_ERROR (module_name, line_number, component_id, ("Could not allocate an object descriptor\n")); @@ -347,7 +347,7 @@ acpi_ut_allocate_object_desc_dbg ( } /* Mark the descriptor type */ - + memset(object, 0, sizeof(union acpi_operand_object)); ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_OPERAND); ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", @@ -385,37 +385,9 @@ acpi_ut_delete_object_desc ( return_VOID; } - acpi_ut_release_to_cache (ACPI_MEM_LIST_OPERAND, object); - - return_VOID; -} - - -#ifdef ACPI_ENABLE_OBJECT_CACHE -/******************************************************************************* - * - * FUNCTION: acpi_ut_delete_object_cache - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Purge the global state object cache. Used during subsystem - * termination. - * - ******************************************************************************/ - -void -acpi_ut_delete_object_cache ( - void) -{ - ACPI_FUNCTION_TRACE ("ut_delete_object_cache"); - - - acpi_ut_delete_generic_cache (ACPI_MEM_LIST_OPERAND); + (void) acpi_os_release_object (acpi_gbl_operand_cache, object); return_VOID; } -#endif /******************************************************************************* diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c new file mode 100644 index 000000000000..192e7ac95690 --- /dev/null +++ b/drivers/acpi/utilities/utstate.c @@ -0,0 +1,376 @@ +/******************************************************************************* + * + * Module Name: utstate - state object support procedures + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2005, R. Byron Moore + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include <acpi/acpi.h> + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utstate") + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_pkg_state_and_push + * + * PARAMETERS: Object - Object to be added to the new state + * Action - Increment/Decrement + * state_list - List the state will be added to + * + * RETURN: Status + * + * DESCRIPTION: Create a new state and push it + * + ******************************************************************************/ + +acpi_status +acpi_ut_create_pkg_state_and_push ( + void *internal_object, + void *external_object, + u16 index, + union acpi_generic_state **state_list) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_ENTRY (); + + + state = acpi_ut_create_pkg_state (internal_object, external_object, index); + if (!state) { + return (AE_NO_MEMORY); + } + + acpi_ut_push_generic_state (state_list, state); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_push_generic_state + * + * PARAMETERS: list_head - Head of the state stack + * State - State object to push + * + * RETURN: None + * + * DESCRIPTION: Push a state object onto a state stack + * + ******************************************************************************/ + +void +acpi_ut_push_generic_state ( + union acpi_generic_state **list_head, + union acpi_generic_state *state) +{ + ACPI_FUNCTION_TRACE ("ut_push_generic_state"); + + + /* Push the state object onto the front of the list (stack) */ + + state->common.next = *list_head; + *list_head = state; + + return_VOID; +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_pop_generic_state + * + * PARAMETERS: list_head - Head of the state stack + * + * RETURN: The popped state object + * + * DESCRIPTION: Pop a state object from a state stack + * + ******************************************************************************/ + +union acpi_generic_state * +acpi_ut_pop_generic_state ( + union acpi_generic_state **list_head) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_TRACE ("ut_pop_generic_state"); + + + /* Remove the state object at the head of the list (stack) */ + + state = *list_head; + if (state) { + /* Update the list head */ + + *list_head = state->common.next; + } + + return_PTR (state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_generic_state + * + * PARAMETERS: None + * + * RETURN: The new state object. NULL on failure. + * + * DESCRIPTION: Create a generic state object. Attempt to obtain one from + * the global state cache; If none available, create a new one. + * + ******************************************************************************/ + +union acpi_generic_state * +acpi_ut_create_generic_state ( + void) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_ENTRY (); + + + state = acpi_os_acquire_object (acpi_gbl_state_cache); + if (state) { + /* Initialize */ + memset(state, 0, sizeof(union acpi_generic_state)); + state->common.data_type = ACPI_DESC_TYPE_STATE; + } + + return (state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_thread_state + * + * PARAMETERS: None + * + * RETURN: New Thread State. NULL on failure + * + * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used + * to track per-thread info during method execution + * + ******************************************************************************/ + +struct acpi_thread_state * +acpi_ut_create_thread_state ( + void) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_TRACE ("ut_create_thread_state"); + + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state (); + if (!state) { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD; + state->thread.thread_id = acpi_os_get_thread_id (); + + return_PTR ((struct acpi_thread_state *) state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_update_state + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create an "Update State" - a flavor of the generic state used + * to update reference counts and delete complex objects such + * as packages. + * + ******************************************************************************/ + +union acpi_generic_state * +acpi_ut_create_update_state ( + union acpi_operand_object *object, + u16 action) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_TRACE_PTR ("ut_create_update_state", object); + + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state (); + if (!state) { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE; + state->update.object = object; + state->update.value = action; + + return_PTR (state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_pkg_state + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Package State" + * + ******************************************************************************/ + +union acpi_generic_state * +acpi_ut_create_pkg_state ( + void *internal_object, + void *external_object, + u16 index) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_TRACE_PTR ("ut_create_pkg_state", internal_object); + + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state (); + if (!state) { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE; + state->pkg.source_object = (union acpi_operand_object *) internal_object; + state->pkg.dest_object = external_object; + state->pkg.index = index; + state->pkg.num_packages = 1; + + return_PTR (state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_create_control_state + * + * PARAMETERS: None + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Control State" - a flavor of the generic state used + * to support nested IF/WHILE constructs in the AML. + * + ******************************************************************************/ + +union acpi_generic_state * +acpi_ut_create_control_state ( + void) +{ + union acpi_generic_state *state; + + + ACPI_FUNCTION_TRACE ("ut_create_control_state"); + + + /* Create the generic state object */ + + state = acpi_ut_create_generic_state (); + if (!state) { + return_PTR (NULL); + } + + /* Init fields specific to the control struct */ + + state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL; + state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; + + return_PTR (state); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ut_delete_generic_state + * + * PARAMETERS: State - The state object to be deleted + * + * RETURN: None + * + * DESCRIPTION: Put a state object back into the global state cache. The object + * is not actually freed at this time. + * + ******************************************************************************/ + +void +acpi_ut_delete_generic_state ( + union acpi_generic_state *state) +{ + ACPI_FUNCTION_TRACE ("ut_delete_generic_state"); + + + (void) acpi_os_release_object (acpi_gbl_state_cache, state); + return_VOID; +} + + diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c index e8803d810656..850da6817423 100644 --- a/drivers/acpi/utilities/utxface.c +++ b/drivers/acpi/utilities/utxface.c @@ -46,8 +46,6 @@ #include <acpi/acpi.h> #include <acpi/acevents.h> #include <acpi/acnamesp.h> -#include <acpi/acparser.h> -#include <acpi/acdispat.h> #include <acpi/acdebug.h> #define _COMPONENT ACPI_UTILITIES @@ -79,11 +77,6 @@ acpi_initialize_subsystem ( ACPI_DEBUG_EXEC (acpi_ut_init_stack_ptr_trace ()); - - /* Initialize all globals used by the subsystem */ - - acpi_ut_init_globals (); - /* Initialize the OS-Dependent layer */ status = acpi_os_initialize (); @@ -93,6 +86,10 @@ acpi_initialize_subsystem ( return_ACPI_STATUS (status); } + /* Initialize all globals used by the subsystem */ + + acpi_ut_init_globals (); + /* Create the default mutex objects */ status = acpi_ut_mutex_initialize (); @@ -522,13 +519,9 @@ acpi_purge_cached_objects ( { ACPI_FUNCTION_TRACE ("acpi_purge_cached_objects"); - -#ifdef ACPI_ENABLE_OBJECT_CACHE - acpi_ut_delete_generic_state_cache (); - acpi_ut_delete_object_cache (); - acpi_ds_delete_walk_state_cache (); - acpi_ps_delete_parse_cache (); -#endif - + (void) acpi_os_purge_cache (acpi_gbl_state_cache); + (void) acpi_os_purge_cache (acpi_gbl_operand_cache); + (void) acpi_os_purge_cache (acpi_gbl_ps_node_cache); + (void) acpi_os_purge_cache (acpi_gbl_ps_node_ext_cache); return_ACPI_STATUS (AE_OK); } |