diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/Makefile | 3 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acutils.h | 51 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utcache.c | 323 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utclib.c | 748 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utdebug.c | 9 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utmisc.c | 99 | ||||
| -rw-r--r-- | drivers/acpi/acpica/uttrack.c | 650 |
7 files changed, 1852 insertions, 31 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 7f1d40797e80..c8bc24bd1f72 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -161,3 +161,6 @@ acpi-y += \ utxfinit.o \ utxferror.o \ utxfmutex.o + +acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o utclib.o + diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 68cb6de26d13..82d6025332e9 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -69,6 +69,22 @@ extern const char *acpi_gbl_siz_decode[]; extern const char *acpi_gbl_trs_decode[]; extern const char *acpi_gbl_ttp_decode[]; extern const char *acpi_gbl_typ_decode[]; +extern const char *acpi_gbl_ppc_decode[]; +extern const char *acpi_gbl_ior_decode[]; +extern const char *acpi_gbl_dts_decode[]; +extern const char *acpi_gbl_ct_decode[]; +extern const char *acpi_gbl_sbt_decode[]; +extern const char *acpi_gbl_am_decode[]; +extern const char *acpi_gbl_sm_decode[]; +extern const char *acpi_gbl_wm_decode[]; +extern const char *acpi_gbl_cph_decode[]; +extern const char *acpi_gbl_cpo_decode[]; +extern const char *acpi_gbl_dp_decode[]; +extern const char *acpi_gbl_ed_decode[]; +extern const char *acpi_gbl_bpb_decode[]; +extern const char *acpi_gbl_sb_decode[]; +extern const char *acpi_gbl_fc_decode[]; +extern const char *acpi_gbl_pt_decode[]; #endif /* Types for Resource descriptor entries */ @@ -79,14 +95,14 @@ extern const char *acpi_gbl_typ_decode[]; #define ACPI_SMALL_VARIABLE_LENGTH 3 typedef -acpi_status(*acpi_walk_aml_callback) (u8 * aml, +acpi_status(*acpi_walk_aml_callback) (u8 *aml, u32 length, u32 offset, u8 resource_index, void **context); typedef acpi_status(*acpi_pkg_callback) (u8 object_type, - union acpi_operand_object * source_object, + union acpi_operand_object *source_object, union acpi_generic_state * state, void *context); @@ -202,7 +218,9 @@ extern const u8 _acpi_ctype[]; #define ACPI_IS_PRINT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP | _ACPI_DI | _ACPI_SP | _ACPI_PU)) #define ACPI_IS_ALPHA(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP)) -#endif /* ACPI_USE_SYSTEM_CLIBRARY */ +#endif /* !ACPI_USE_SYSTEM_CLIBRARY */ + +#define ACPI_IS_ASCII(c) ((c) < 0x80) /* * utcopy - Object construction and conversion interfaces @@ -210,11 +228,11 @@ extern const u8 _acpi_ctype[]; acpi_status acpi_ut_build_simple_object(union acpi_operand_object *obj, union acpi_object *user_obj, - u8 * data_space, u32 * buffer_space_used); + u8 *data_space, u32 *buffer_space_used); acpi_status acpi_ut_build_package_object(union acpi_operand_object *obj, - u8 * buffer, u32 * space_used); + u8 *buffer, u32 *space_used); acpi_status acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *obj, @@ -287,9 +305,9 @@ acpi_ut_ptr_exit(u32 line_number, const char *function_name, const char *module_name, u32 component_id, u8 *ptr); -void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id); +void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id); -void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display); +void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display); void acpi_ut_report_error(char *module_name, u32 line_number); @@ -337,15 +355,15 @@ acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node, */ acpi_status acpi_ut_execute_HID(struct acpi_namespace_node *device_node, - struct acpica_device_id **return_id); + struct acpica_device_id ** return_id); acpi_status acpi_ut_execute_UID(struct acpi_namespace_node *device_node, - struct acpica_device_id **return_id); + struct acpica_device_id ** return_id); acpi_status acpi_ut_execute_CID(struct acpi_namespace_node *device_node, - struct acpica_device_id_list **return_cid_list); + struct acpica_device_id_list ** return_cid_list); /* * utlock - reader/writer locks @@ -479,6 +497,10 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object, void acpi_ut_strupr(char *src_string); +void acpi_ut_strlwr(char *src_string); + +int acpi_ut_stricmp(char *string1, char *string2); + void acpi_ut_print_string(char *string, u8 max_length); u8 acpi_ut_valid_acpi_name(u32 name); @@ -487,7 +509,7 @@ void acpi_ut_repair_name(char *name); u8 acpi_ut_valid_acpi_char(char character, u32 position); -acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer); +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer); /* Values for Base above (16=Hex, 10=Decimal) */ @@ -508,12 +530,12 @@ acpi_ut_display_init_pathname(u8 type, * utresrc */ acpi_status -acpi_ut_walk_aml_resources(u8 * aml, +acpi_ut_walk_aml_resources(u8 *aml, acpi_size aml_length, acpi_walk_aml_callback user_function, void **context); -acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index); +acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index); u32 acpi_ut_get_descriptor_length(void *aml); @@ -524,8 +546,7 @@ u8 acpi_ut_get_resource_header_length(void *aml); u8 acpi_ut_get_resource_type(void *aml); acpi_status -acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, - u8 ** end_tag); +acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag); /* * utmutex - mutex support diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c new file mode 100644 index 000000000000..eacb9ba2b9e0 --- /dev/null +++ b/drivers/acpi/acpica/utcache.c @@ -0,0 +1,323 @@ +/****************************************************************************** + * + * Module Name: utcache - local cache allocation routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" + +#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_status status; + + ACPI_FUNCTION_ENTRY(); + + if (!cache) { + return (AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* 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_FREE(cache->list_head); + + cache->list_head = next; + cache->current_depth--; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); + 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_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_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++); + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + if ((cache->total_allocated - cache->total_freed) > + cache->max_occupied) { + cache->max_occupied = + cache->total_allocated - cache->total_freed; + } +#endif + + /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */ + + status = acpi_ut_release_mutex(ACPI_MTX_CACHES); + if (ACPI_FAILURE(status)) { + return (NULL); + } + + object = ACPI_ALLOCATE_ZEROED(cache->object_size); + if (!object) { + return (NULL); + } + } + + return (object); +} +#endif /* ACPI_USE_LOCAL_CACHE */ diff --git a/drivers/acpi/acpica/utclib.c b/drivers/acpi/acpica/utclib.c new file mode 100644 index 000000000000..f887f93e56ad --- /dev/null +++ b/drivers/acpi/acpica/utclib.c @@ -0,0 +1,748 @@ +/****************************************************************************** + * + * Module Name: cmclib - Local implementation of C library functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" + +/* + * These implementations of standard C Library routines can optionally be + * used if a C library is not available. In general, they are less efficient + * than an inline or assembly implementation + */ + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("cmclib") + +#ifndef ACPI_USE_SYSTEM_CLIBRARY +#define NEGATIVE 1 +#define POSITIVE 0 +/******************************************************************************* + * + * FUNCTION: acpi_ut_memcmp (memcmp) + * + * PARAMETERS: buffer1 - First Buffer + * buffer2 - Second Buffer + * count - Maximum # of bytes to compare + * + * RETURN: Index where Buffers mismatched, or 0 if Buffers matched + * + * DESCRIPTION: Compare two Buffers, with a maximum length + * + ******************************************************************************/ +int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count) +{ + + return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*buffer1 - + (unsigned char)*buffer2)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_memcpy (memcpy) + * + * PARAMETERS: dest - Target of the copy + * src - Source buffer to copy + * count - Number of bytes to copy + * + * RETURN: Dest + * + * DESCRIPTION: Copy arbitrary bytes of memory + * + ******************************************************************************/ + +void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count) +{ + char *new = (char *)dest; + char *old = (char *)src; + + while (count) { + *new = *old; + new++; + old++; + count--; + } + + return (dest); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_memset (memset) + * + * PARAMETERS: dest - Buffer to set + * value - Value to set each byte of memory + * count - Number of bytes to set + * + * RETURN: Dest + * + * DESCRIPTION: Initialize a buffer to a known value. + * + ******************************************************************************/ + +void *acpi_ut_memset(void *dest, u8 value, acpi_size count) +{ + char *new = (char *)dest; + + while (count) { + *new = (char)value; + new++; + count--; + } + + return (dest); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strlen (strlen) + * + * PARAMETERS: string - Null terminated string + * + * RETURN: Length + * + * DESCRIPTION: Returns the length of the input string + * + ******************************************************************************/ + +acpi_size acpi_ut_strlen(const char *string) +{ + u32 length = 0; + + /* Count the string until a null is encountered */ + + while (*string) { + length++; + string++; + } + + return (length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strcpy (strcpy) + * + * PARAMETERS: dst_string - Target of the copy + * src_string - The source string to copy + * + * RETURN: dst_string + * + * DESCRIPTION: Copy a null terminated string + * + ******************************************************************************/ + +char *acpi_ut_strcpy(char *dst_string, const char *src_string) +{ + char *string = dst_string; + + /* Move bytes brute force */ + + while (*src_string) { + *string = *src_string; + + string++; + src_string++; + } + + /* Null terminate */ + + *string = 0; + return (dst_string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strncpy (strncpy) + * + * PARAMETERS: dst_string - Target of the copy + * src_string - The source string to copy + * count - Maximum # of bytes to copy + * + * RETURN: dst_string + * + * DESCRIPTION: Copy a null terminated string, with a maximum length + * + ******************************************************************************/ + +char *acpi_ut_strncpy(char *dst_string, const char *src_string, acpi_size count) +{ + char *string = dst_string; + + /* Copy the string */ + + for (string = dst_string; + count && (count--, (*string++ = *src_string++));) {; + } + + /* Pad with nulls if necessary */ + + while (count--) { + *string = 0; + string++; + } + + /* Return original pointer */ + + return (dst_string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strcmp (strcmp) + * + * PARAMETERS: string1 - First string + * string2 - Second string + * + * RETURN: Index where strings mismatched, or 0 if strings matched + * + * DESCRIPTION: Compare two null terminated strings + * + ******************************************************************************/ + +int acpi_ut_strcmp(const char *string1, const char *string2) +{ + + for (; (*string1 == *string2); string2++) { + if (!*string1++) { + return (0); + } + } + + return ((unsigned char)*string1 - (unsigned char)*string2); +} + +#ifdef ACPI_FUTURE_IMPLEMENTATION +/* Not used at this time */ +/******************************************************************************* + * + * FUNCTION: acpi_ut_strchr (strchr) + * + * PARAMETERS: string - Search string + * ch - character to search for + * + * RETURN: Ptr to char or NULL if not found + * + * DESCRIPTION: Search a string for a character + * + ******************************************************************************/ + +char *acpi_ut_strchr(const char *string, int ch) +{ + + for (; (*string); string++) { + if ((*string) == (char)ch) { + return ((char *)string); + } + } + + return (NULL); +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strncmp (strncmp) + * + * PARAMETERS: string1 - First string + * string2 - Second string + * count - Maximum # of bytes to compare + * + * RETURN: Index where strings mismatched, or 0 if strings matched + * + * DESCRIPTION: Compare two null terminated strings, with a maximum length + * + ******************************************************************************/ + +int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count) +{ + + for (; count-- && (*string1 == *string2); string2++) { + if (!*string1++) { + return (0); + } + } + + return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*string1 - + (unsigned char)*string2)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strcat (Strcat) + * + * PARAMETERS: dst_string - Target of the copy + * src_string - The source string to copy + * + * RETURN: dst_string + * + * DESCRIPTION: Append a null terminated string to a null terminated string + * + ******************************************************************************/ + +char *acpi_ut_strcat(char *dst_string, const char *src_string) +{ + char *string; + + /* Find end of the destination string */ + + for (string = dst_string; *string++;) {; + } + + /* Concatenate the string */ + + for (--string; (*string++ = *src_string++);) {; + } + + return (dst_string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strncat (strncat) + * + * PARAMETERS: dst_string - Target of the copy + * src_string - The source string to copy + * count - Maximum # of bytes to copy + * + * RETURN: dst_string + * + * DESCRIPTION: Append a null terminated string to a null terminated string, + * with a maximum count. + * + ******************************************************************************/ + +char *acpi_ut_strncat(char *dst_string, const char *src_string, acpi_size count) +{ + char *string; + + if (count) { + + /* Find end of the destination string */ + + for (string = dst_string; *string++;) {; + } + + /* Concatenate the string */ + + for (--string; (*string++ = *src_string++) && --count;) {; + } + + /* Null terminate if necessary */ + + if (!count) { + *string = 0; + } + } + + return (dst_string); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strstr (strstr) + * + * PARAMETERS: string1 - Target string + * string2 - Substring to search for + * + * RETURN: Where substring match starts, Null if no match found + * + * DESCRIPTION: Checks if String2 occurs in String1. This is not really a + * full implementation of strstr, only sufficient for command + * matching + * + ******************************************************************************/ + +char *acpi_ut_strstr(char *string1, char *string2) +{ + char *string; + + if (acpi_ut_strlen(string2) > acpi_ut_strlen(string1)) { + return (NULL); + } + + /* Walk entire string, comparing the letters */ + + for (string = string1; *string2;) { + if (*string2 != *string) { + return (NULL); + } + + string2++; + string++; + } + + return (string1); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_strtoul (strtoul) + * + * PARAMETERS: string - Null terminated string + * terminater - Where a pointer to the terminating byte is + * returned + * base - Radix of the string + * + * RETURN: Converted value + * + * DESCRIPTION: Convert a string into a 32-bit unsigned value. + * Note: use acpi_ut_strtoul64 for 64-bit integers. + * + ******************************************************************************/ + +u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base) +{ + u32 converted = 0; + u32 index; + u32 sign; + const char *string_start; + u32 return_value = 0; + acpi_status status = AE_OK; + + /* + * Save the value of the pointer to the buffer's first + * character, save the current errno value, and then + * skip over any white space in the buffer: + */ + string_start = string; + while (ACPI_IS_SPACE(*string) || *string == '\t') { + ++string; + } + + /* + * The buffer may contain an optional plus or minus sign. + * If it does, then skip over it but remember what is was: + */ + if (*string == '-') { + sign = NEGATIVE; + ++string; + } else if (*string == '+') { + ++string; + sign = POSITIVE; + } else { + sign = POSITIVE; + } + + /* + * If the input parameter Base is zero, then we need to + * determine if it is octal, decimal, or hexadecimal: + */ + if (base == 0) { + if (*string == '0') { + if (acpi_ut_to_lower(*(++string)) == 'x') { + base = 16; + ++string; + } else { + base = 8; + } + } else { + base = 10; + } + } else if (base < 2 || base > 36) { + /* + * The specified Base parameter is not in the domain of + * this function: + */ + goto done; + } + + /* + * For octal and hexadecimal bases, skip over the leading + * 0 or 0x, if they are present. + */ + if (base == 8 && *string == '0') { + string++; + } + + if (base == 16 && + *string == '0' && acpi_ut_to_lower(*(++string)) == 'x') { + string++; + } + + /* + * Main loop: convert the string to an unsigned long: + */ + while (*string) { + if (ACPI_IS_DIGIT(*string)) { + index = (u32)((u8)*string - '0'); + } else { + index = (u32)acpi_ut_to_upper(*string); + if (ACPI_IS_UPPER(index)) { + index = index - 'A' + 10; + } else { + goto done; + } + } + + if (index >= base) { + goto done; + } + + /* + * Check to see if value is out of range: + */ + + if (return_value > ((ACPI_UINT32_MAX - (u32)index) / (u32)base)) { + status = AE_ERROR; + return_value = 0; /* reset */ + } else { + return_value *= base; + return_value += index; + converted = 1; + } + + ++string; + } + + done: + /* + * If appropriate, update the caller's pointer to the next + * unconverted character in the buffer. + */ + if (terminator) { + if (converted == 0 && return_value == 0 && string != NULL) { + *terminator = (char *)string_start; + } else { + *terminator = (char *)string; + } + } + + if (status == AE_ERROR) { + return_value = ACPI_UINT32_MAX; + } + + /* + * If a minus sign was present, then "the conversion is negated": + */ + if (sign == NEGATIVE) { + return_value = (ACPI_UINT32_MAX - return_value) + 1; + } + + return (return_value); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_to_upper (TOUPPER) + * + * PARAMETERS: c - Character to convert + * + * RETURN: Converted character as an int + * + * DESCRIPTION: Convert character to uppercase + * + ******************************************************************************/ + +int acpi_ut_to_upper(int c) +{ + + return (ACPI_IS_LOWER(c) ? ((c) - 0x20) : (c)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_to_lower (TOLOWER) + * + * PARAMETERS: c - Character to convert + * + * RETURN: Converted character as an int + * + * DESCRIPTION: Convert character to lowercase + * + ******************************************************************************/ + +int acpi_ut_to_lower(int c) +{ + + return (ACPI_IS_UPPER(c) ? ((c) + 0x20) : (c)); +} + +/******************************************************************************* + * + * FUNCTION: is* functions + * + * DESCRIPTION: is* functions use the ctype table below + * + ******************************************************************************/ + +const u8 _acpi_ctype[257] = { + _ACPI_CN, /* 0x0 0. */ + _ACPI_CN, /* 0x1 1. */ + _ACPI_CN, /* 0x2 2. */ + _ACPI_CN, /* 0x3 3. */ + _ACPI_CN, /* 0x4 4. */ + _ACPI_CN, /* 0x5 5. */ + _ACPI_CN, /* 0x6 6. */ + _ACPI_CN, /* 0x7 7. */ + _ACPI_CN, /* 0x8 8. */ + _ACPI_CN | _ACPI_SP, /* 0x9 9. */ + _ACPI_CN | _ACPI_SP, /* 0xA 10. */ + _ACPI_CN | _ACPI_SP, /* 0xB 11. */ + _ACPI_CN | _ACPI_SP, /* 0xC 12. */ + _ACPI_CN | _ACPI_SP, /* 0xD 13. */ + _ACPI_CN, /* 0xE 14. */ + _ACPI_CN, /* 0xF 15. */ + _ACPI_CN, /* 0x10 16. */ + _ACPI_CN, /* 0x11 17. */ + _ACPI_CN, /* 0x12 18. */ + _ACPI_CN, /* 0x13 19. */ + _ACPI_CN, /* 0x14 20. */ + _ACPI_CN, /* 0x15 21. */ + _ACPI_CN, /* 0x16 22. */ + _ACPI_CN, /* 0x17 23. */ + _ACPI_CN, /* 0x18 24. */ + _ACPI_CN, /* 0x19 25. */ + _ACPI_CN, /* 0x1A 26. */ + _ACPI_CN, /* 0x1B 27. */ + _ACPI_CN, /* 0x1C 28. */ + _ACPI_CN, /* 0x1D 29. */ + _ACPI_CN, /* 0x1E 30. */ + _ACPI_CN, /* 0x1F 31. */ + _ACPI_XS | _ACPI_SP, /* 0x20 32. ' ' */ + _ACPI_PU, /* 0x21 33. '!' */ + _ACPI_PU, /* 0x22 34. '"' */ + _ACPI_PU, /* 0x23 35. '#' */ + _ACPI_PU, /* 0x24 36. '$' */ + _ACPI_PU, /* 0x25 37. '%' */ + _ACPI_PU, /* 0x26 38. '&' */ + _ACPI_PU, /* 0x27 39. ''' */ + _ACPI_PU, /* 0x28 40. '(' */ + _ACPI_PU, /* 0x29 41. ')' */ + _ACPI_PU, /* 0x2A 42. '*' */ + _ACPI_PU, /* 0x2B 43. '+' */ + _ACPI_PU, /* 0x2C 44. ',' */ + _ACPI_PU, /* 0x2D 45. '-' */ + _ACPI_PU, /* 0x2E 46. '.' */ + _ACPI_PU, /* 0x2F 47. '/' */ + _ACPI_XD | _ACPI_DI, /* 0x30 48. '0' */ + _ACPI_XD | _ACPI_DI, /* 0x31 49. '1' */ + _ACPI_XD | _ACPI_DI, /* 0x32 50. '2' */ + _ACPI_XD | _ACPI_DI, /* 0x33 51. '3' */ + _ACPI_XD | _ACPI_DI, /* 0x34 52. '4' */ + _ACPI_XD | _ACPI_DI, /* 0x35 53. '5' */ + _ACPI_XD | _ACPI_DI, /* 0x36 54. '6' */ + _ACPI_XD | _ACPI_DI, /* 0x37 55. '7' */ + _ACPI_XD | _ACPI_DI, /* 0x38 56. '8' */ + _ACPI_XD | _ACPI_DI, /* 0x39 57. '9' */ + _ACPI_PU, /* 0x3A 58. ':' */ + _ACPI_PU, /* 0x3B 59. ';' */ + _ACPI_PU, /* 0x3C 60. '<' */ + _ACPI_PU, /* 0x3D 61. '=' */ + _ACPI_PU, /* 0x3E 62. '>' */ + _ACPI_PU, /* 0x3F 63. '?' */ + _ACPI_PU, /* 0x40 64. '@' */ + _ACPI_XD | _ACPI_UP, /* 0x41 65. 'A' */ + _ACPI_XD | _ACPI_UP, /* 0x42 66. 'B' */ + _ACPI_XD | _ACPI_UP, /* 0x43 67. 'C' */ + _ACPI_XD | _ACPI_UP, /* 0x44 68. 'D' */ + _ACPI_XD | _ACPI_UP, /* 0x45 69. 'E' */ + _ACPI_XD | _ACPI_UP, /* 0x46 70. 'F' */ + _ACPI_UP, /* 0x47 71. 'G' */ + _ACPI_UP, /* 0x48 72. 'H' */ + _ACPI_UP, /* 0x49 73. 'I' */ + _ACPI_UP, /* 0x4A 74. 'J' */ + _ACPI_UP, /* 0x4B 75. 'K' */ + _ACPI_UP, /* 0x4C 76. 'L' */ + _ACPI_UP, /* 0x4D 77. 'M' */ + _ACPI_UP, /* 0x4E 78. 'N' */ + _ACPI_UP, /* 0x4F 79. 'O' */ + _ACPI_UP, /* 0x50 80. 'P' */ + _ACPI_UP, /* 0x51 81. 'Q' */ + _ACPI_UP, /* 0x52 82. 'R' */ + _ACPI_UP, /* 0x53 83. 'S' */ + _ACPI_UP, /* 0x54 84. 'T' */ + _ACPI_UP, /* 0x55 85. 'U' */ + _ACPI_UP, /* 0x56 86. 'V' */ + _ACPI_UP, /* 0x57 87. 'W' */ + _ACPI_UP, /* 0x58 88. 'X' */ + _ACPI_UP, /* 0x59 89. 'Y' */ + _ACPI_UP, /* 0x5A 90. 'Z' */ + _ACPI_PU, /* 0x5B 91. '[' */ + _ACPI_PU, /* 0x5C 92. '\' */ + _ACPI_PU, /* 0x5D 93. ']' */ + _ACPI_PU, /* 0x5E 94. '^' */ + _ACPI_PU, /* 0x5F 95. '_' */ + _ACPI_PU, /* 0x60 96. '`' */ + _ACPI_XD | _ACPI_LO, /* 0x61 97. 'a' */ + _ACPI_XD | _ACPI_LO, /* 0x62 98. 'b' */ + _ACPI_XD | _ACPI_LO, /* 0x63 99. 'c' */ + _ACPI_XD | _ACPI_LO, /* 0x64 100. 'd' */ + _ACPI_XD | _ACPI_LO, /* 0x65 101. 'e' */ + _ACPI_XD | _ACPI_LO, /* 0x66 102. 'f' */ + _ACPI_LO, /* 0x67 103. 'g' */ + _ACPI_LO, /* 0x68 104. 'h' */ + _ACPI_LO, /* 0x69 105. 'i' */ + _ACPI_LO, /* 0x6A 106. 'j' */ + _ACPI_LO, /* 0x6B 107. 'k' */ + _ACPI_LO, /* 0x6C 108. 'l' */ + _ACPI_LO, /* 0x6D 109. 'm' */ + _ACPI_LO, /* 0x6E 110. 'n' */ + _ACPI_LO, /* 0x6F 111. 'o' */ + _ACPI_LO, /* 0x70 112. 'p' */ + _ACPI_LO, /* 0x71 113. 'q' */ + _ACPI_LO, /* 0x72 114. 'r' */ + _ACPI_LO, /* 0x73 115. 's' */ + _ACPI_LO, /* 0x74 116. 't' */ + _ACPI_LO, /* 0x75 117. 'u' */ + _ACPI_LO, /* 0x76 118. 'v' */ + _ACPI_LO, /* 0x77 119. 'w' */ + _ACPI_LO, /* 0x78 120. 'x' */ + _ACPI_LO, /* 0x79 121. 'y' */ + _ACPI_LO, /* 0x7A 122. 'z' */ + _ACPI_PU, /* 0x7B 123. '{' */ + _ACPI_PU, /* 0x7C 124. '|' */ + _ACPI_PU, /* 0x7D 125. '}' */ + _ACPI_PU, /* 0x7E 126. '~' */ + _ACPI_CN, /* 0x7F 127. */ + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 to 0x8F */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 to 0x9F */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0 to 0xAF */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0 to 0xBF */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 to 0xCF */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 to 0xDF */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xE0 to 0xEF */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xF0 to 0x100 */ +}; + +#endif /* ACPI_USE_SYSTEM_CLIBRARY */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index e810894149ae..6e3ae6a23f0b 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -47,8 +47,9 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utdebug") + #ifdef ACPI_DEBUG_OUTPUT -static acpi_thread_id acpi_gbl_prev_thread_id; +static acpi_thread_id acpi_gbl_prev_thread_id = (acpi_thread_id) 0xFFFFFFFF; static char *acpi_gbl_fn_entry_str = "----Entry"; static char *acpi_gbl_fn_exit_str = "----Exit-"; @@ -109,7 +110,7 @@ void acpi_ut_track_stack_ptr(void) * RETURN: Updated pointer to the function name * * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. - * This allows compiler macros such as __func__ to be used + * This allows compiler macros such as __FUNCTION__ to be used * with no change to the debug output. * ******************************************************************************/ @@ -519,7 +520,7 @@ acpi_ut_ptr_exit(u32 line_number, * ******************************************************************************/ -void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display) +void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display) { u32 i = 0; u32 j; @@ -636,7 +637,7 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display) * ******************************************************************************/ -void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) +void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id) { /* Only dump the buffer if tracing is enabled */ diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index d91d88df2a96..0fed4bcc84b6 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include "accommon.h" #include "acnamesp.h" @@ -201,8 +199,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) */ acpi_gbl_owner_id_mask[j] |= (1 << k); - acpi_gbl_last_owner_id_index = (u8) j; - acpi_gbl_next_owner_id_offset = (u8) (k + 1); + acpi_gbl_last_owner_id_index = (u8)j; + acpi_gbl_next_owner_id_offset = (u8)(k + 1); /* * Construct encoded ID from the index and bit position @@ -339,6 +337,73 @@ void acpi_ut_strupr(char *src_string) return; } +#ifdef ACPI_ASL_COMPILER +/******************************************************************************* + * + * FUNCTION: acpi_ut_strlwr (strlwr) + * + * PARAMETERS: src_string - The source string to convert + * + * RETURN: None + * + * DESCRIPTION: Convert string to lowercase + * + * NOTE: This is not a POSIX function, so it appears here, not in utclib.c + * + ******************************************************************************/ + +void acpi_ut_strlwr(char *src_string) +{ + char *string; + + ACPI_FUNCTION_ENTRY(); + + if (!src_string) { + return; + } + + /* Walk entire string, lowercasing the letters */ + + for (string = src_string; *string; string++) { + *string = (char)ACPI_TOLOWER(*string); + } + + return; +} + +/****************************************************************************** + * + * FUNCTION: acpi_ut_stricmp + * + * PARAMETERS: string1 - first string to compare + * string2 - second string to compare + * + * RETURN: int that signifies string relationship. Zero means strings + * are equal. + * + * DESCRIPTION: Implementation of the non-ANSI stricmp function (compare + * strings with no case sensitivity) + * + ******************************************************************************/ + +int acpi_ut_stricmp(char *string1, char *string2) +{ + int c1; + int c2; + + do { + c1 = tolower((int)*string1); + c2 = tolower((int)*string2); + + string1++; + string2++; + } + while ((c1 == c2) && (c1)); + + return (c1 - c2); +} +#endif + /******************************************************************************* * * FUNCTION: acpi_ut_print_string @@ -638,7 +703,16 @@ u8 acpi_ut_valid_acpi_name(u32 name) * RETURN: Repaired version of the name * * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and - * return the new name. + * return the new name. NOTE: the Name parameter must reside in + * read/write memory, cannot be a const. + * + * An ACPI Name must consist of valid ACPI characters. We will repair the name + * if necessary because we don't want to abort because of this, but we want + * all namespace names to be printable. A warning message is appropriate. + * + * This issue came up because there are in fact machines that exhibit + * this problem, and we want to be able to enable ACPI support for them, + * even though there are a few bad names. * ******************************************************************************/ @@ -699,7 +773,7 @@ void acpi_ut_repair_name(char *name) * ******************************************************************************/ -acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer) +acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) { u32 this_digit = 0; u64 return_value = 0; @@ -772,14 +846,14 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer) /* Convert ASCII 0-9 to Decimal value */ - this_digit = ((u8) * string) - '0'; + this_digit = ((u8)*string) - '0'; } else if (base == 10) { /* Digit is out of range; possible in to_integer case only */ term = 1; } else { - this_digit = (u8) ACPI_TOUPPER(*string); + this_digit = (u8)ACPI_TOUPPER(*string); if (ACPI_IS_XDIGIT((char)this_digit)) { /* Convert ASCII Hex char to value */ @@ -806,8 +880,9 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer) valid_digits++; - if (sign_of0x && ((valid_digits > 16) - || ((valid_digits > 8) && mode32))) { + if (sign_of0x + && ((valid_digits > 16) + || ((valid_digits > 8) && mode32))) { /* * This is to_integer operation case. * No any restrictions for string-to-integer conversion, @@ -818,7 +893,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer) /* Divide the digit into the correct position */ - (void)acpi_ut_short_divide((dividend - (u64) this_digit), + (void)acpi_ut_short_divide((dividend - (u64)this_digit), base, "ient, NULL); if (return_value > quotient) { @@ -908,7 +983,7 @@ acpi_ut_create_update_state_and_push(union acpi_operand_object *object, ******************************************************************************/ acpi_status -acpi_ut_walk_package_tree(union acpi_operand_object * source_object, +acpi_ut_walk_package_tree(union acpi_operand_object *source_object, void *target_object, acpi_pkg_callback walk_callback, void *context) { diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c new file mode 100644 index 000000000000..73ca27d40f9f --- /dev/null +++ b/drivers/acpi/acpica/uttrack.c @@ -0,0 +1,650 @@ +/****************************************************************************** + * + * Module Name: uttrack - Memory allocation tracking routines (debug only) + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +/* + * These procedures are used for tracking memory leaks in the subsystem, and + * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. + * + * Each memory allocation is tracked via a doubly linked list. Each + * element contains the caller's component, module name, function name, and + * line number. acpi_ut_allocate and acpi_ut_allocate_zeroed call + * acpi_ut_track_allocation to add an element to the list; deletion + * occurs in the body of acpi_ut_free. + */ + +#include <acpi/acpi.h> +#include "accommon.h" + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("uttrack") + +/* Local prototypes */ +static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation); + +static acpi_status +acpi_ut_track_allocation(struct acpi_debug_mem_block *address, + acpi_size size, + u8 alloc_type, + u32 component, const char *module, u32 line); + +static acpi_status +acpi_ut_remove_allocation(struct acpi_debug_mem_block *address, + u32 component, const char *module, u32 line); + +/******************************************************************************* + * + * 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 + * + ******************************************************************************/ + +acpi_status +acpi_ut_create_list(char *list_name, + u16 object_size, struct acpi_memory_list **return_cache) +{ + struct acpi_memory_list *cache; + + cache = acpi_os_allocate(sizeof(struct acpi_memory_list)); + if (!cache) { + return (AE_NO_MEMORY); + } + + ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list)); + + cache->list_name = list_name; + cache->object_size = object_size; + + *return_cache = cache; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_and_track + * + * PARAMETERS: size - Size of the allocation + * component - Component type of caller + * module - Source file name of caller + * line - Line number of caller + * + * RETURN: Address of the allocated memory on success, NULL on failure. + * + * DESCRIPTION: The subsystem's equivalent of malloc. + * + ******************************************************************************/ + +void *acpi_ut_allocate_and_track(acpi_size size, + u32 component, const char *module, u32 line) +{ + struct acpi_debug_mem_block *allocation; + acpi_status status; + + allocation = + acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header), + component, module, line); + if (!allocation) { + return (NULL); + } + + status = acpi_ut_track_allocation(allocation, size, + ACPI_MEM_MALLOC, component, module, + line); + if (ACPI_FAILURE(status)) { + acpi_os_free(allocation); + return (NULL); + } + + acpi_gbl_global_list->total_allocated++; + acpi_gbl_global_list->total_size += (u32)size; + acpi_gbl_global_list->current_total_size += (u32)size; + if (acpi_gbl_global_list->current_total_size > + acpi_gbl_global_list->max_occupied) { + acpi_gbl_global_list->max_occupied = + acpi_gbl_global_list->current_total_size; + } + + return ((void *)&allocation->user_space); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_allocate_zeroed_and_track + * + * PARAMETERS: size - Size of the allocation + * component - Component type of caller + * module - Source file name of caller + * line - Line number of caller + * + * RETURN: Address of the allocated memory on success, NULL on failure. + * + * DESCRIPTION: Subsystem equivalent of calloc. + * + ******************************************************************************/ + +void *acpi_ut_allocate_zeroed_and_track(acpi_size size, + u32 component, + const char *module, u32 line) +{ + struct acpi_debug_mem_block *allocation; + acpi_status status; + + allocation = + acpi_ut_allocate_zeroed(size + sizeof(struct acpi_debug_mem_header), + component, module, line); + if (!allocation) { + + /* Report allocation error */ + + ACPI_ERROR((module, line, + "Could not allocate size %u", (u32)size)); + return (NULL); + } + + status = acpi_ut_track_allocation(allocation, size, + ACPI_MEM_CALLOC, component, module, + line); + if (ACPI_FAILURE(status)) { + acpi_os_free(allocation); + return (NULL); + } + + acpi_gbl_global_list->total_allocated++; + acpi_gbl_global_list->total_size += (u32)size; + acpi_gbl_global_list->current_total_size += (u32)size; + if (acpi_gbl_global_list->current_total_size > + acpi_gbl_global_list->max_occupied) { + acpi_gbl_global_list->max_occupied = + acpi_gbl_global_list->current_total_size; + } + + return ((void *)&allocation->user_space); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_free_and_track + * + * PARAMETERS: allocation - Address of the memory to deallocate + * component - Component type of caller + * module - Source file name of caller + * line - Line number of caller + * + * RETURN: None + * + * DESCRIPTION: Frees the memory at Allocation + * + ******************************************************************************/ + +void +acpi_ut_free_and_track(void *allocation, + u32 component, const char *module, u32 line) +{ + struct acpi_debug_mem_block *debug_block; + acpi_status status; + + ACPI_FUNCTION_TRACE_PTR(ut_free, allocation); + + if (NULL == allocation) { + ACPI_ERROR((module, line, "Attempt to delete a NULL address")); + + return_VOID; + } + + debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block, + (((char *)allocation) - + sizeof(struct acpi_debug_mem_header))); + + acpi_gbl_global_list->total_freed++; + acpi_gbl_global_list->current_total_size -= debug_block->size; + + status = acpi_ut_remove_allocation(debug_block, + component, module, line); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Could not free memory")); + } + + acpi_os_free(debug_block); + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_find_allocation + * + * PARAMETERS: allocation - Address of allocated memory + * + * RETURN: A list element if found; NULL otherwise. + * + * DESCRIPTION: Searches for an element in the global allocation tracking list. + * + ******************************************************************************/ + +static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation) +{ + struct acpi_debug_mem_block *element; + + ACPI_FUNCTION_ENTRY(); + + element = acpi_gbl_global_list->list_head; + + /* Search for the address. */ + + while (element) { + if (element == allocation) { + return (element); + } + + element = element->next; + } + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_track_allocation + * + * PARAMETERS: allocation - Address of allocated memory + * size - Size of the allocation + * alloc_type - MEM_MALLOC or MEM_CALLOC + * component - Component type of caller + * module - Source file name of caller + * line - Line number of caller + * + * RETURN: None. + * + * DESCRIPTION: Inserts an element into the global allocation tracking list. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation, + acpi_size size, + u8 alloc_type, + u32 component, const char *module, u32 line) +{ + struct acpi_memory_list *mem_list; + struct acpi_debug_mem_block *element; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE_PTR(ut_track_allocation, allocation); + + if (acpi_gbl_disable_mem_tracking) { + return_ACPI_STATUS(AE_OK); + } + + mem_list = acpi_gbl_global_list; + status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Search list for this address to make sure it is not already on the list. + * This will catch several kinds of problems. + */ + element = acpi_ut_find_allocation(allocation); + if (element) { + ACPI_ERROR((AE_INFO, + "UtTrackAllocation: Allocation already present in list! (%p)", + allocation)); + + ACPI_ERROR((AE_INFO, "Element %p Address %p", + element, allocation)); + + goto unlock_and_exit; + } + + /* Fill in the instance data. */ + + allocation->size = (u32)size; + allocation->alloc_type = alloc_type; + allocation->component = component; + allocation->line = line; + + ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME); + allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0; + + /* Insert at list head */ + + if (mem_list->list_head) { + ((struct acpi_debug_mem_block *)(mem_list->list_head))-> + previous = allocation; + } + + allocation->next = mem_list->list_head; + allocation->previous = NULL; + + mem_list->list_head = allocation; + + unlock_and_exit: + status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_remove_allocation + * + * PARAMETERS: allocation - Address of allocated memory + * component - Component type of caller + * module - Source file name of caller + * line - Line number of caller + * + * RETURN: + * + * DESCRIPTION: Deletes an element from the global allocation tracking list. + * + ******************************************************************************/ + +static acpi_status +acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation, + u32 component, const char *module, u32 line) +{ + struct acpi_memory_list *mem_list; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_remove_allocation); + + if (acpi_gbl_disable_mem_tracking) { + return_ACPI_STATUS(AE_OK); + } + + mem_list = acpi_gbl_global_list; + if (NULL == mem_list->list_head) { + + /* No allocations! */ + + ACPI_ERROR((module, line, + "Empty allocation list, nothing to free!")); + + return_ACPI_STATUS(AE_OK); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Unlink */ + + if (allocation->previous) { + (allocation->previous)->next = allocation->next; + } else { + mem_list->list_head = allocation->next; + } + + if (allocation->next) { + (allocation->next)->previous = allocation->previous; + } + + /* Mark the segment as deleted */ + + ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size); + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n", + allocation->size)); + + status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dump_allocation_info + * + * PARAMETERS: + * + * RETURN: None + * + * DESCRIPTION: Print some info about the outstanding allocations. + * + ******************************************************************************/ + +void acpi_ut_dump_allocation_info(void) +{ +/* + struct acpi_memory_list *mem_list; +*/ + + ACPI_FUNCTION_TRACE(ut_dump_allocation_info); + +/* + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Current allocations", + mem_list->current_count, + ROUND_UP_TO_1K (mem_list->current_size))); + + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", + mem_list->max_concurrent_count, + ROUND_UP_TO_1K (mem_list->max_concurrent_size))); + + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", + running_object_count, + ROUND_UP_TO_1K (running_object_size))); + + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", + running_alloc_count, + ROUND_UP_TO_1K (running_alloc_size))); + + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Current Nodes", + acpi_gbl_current_node_count, + ROUND_UP_TO_1K (acpi_gbl_current_node_size))); + + ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, + ("%30s: %4d (%3d Kb)\n", "Max Nodes", + acpi_gbl_max_concurrent_node_count, + ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count * + sizeof (struct acpi_namespace_node))))); +*/ + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dump_allocations + * + * PARAMETERS: component - Component(s) to dump info for. + * module - Module to dump info for. NULL means all. + * + * RETURN: None + * + * DESCRIPTION: Print a list of all outstanding allocations. + * + ******************************************************************************/ + +void acpi_ut_dump_allocations(u32 component, const char *module) +{ + struct acpi_debug_mem_block *element; + union acpi_descriptor *descriptor; + u32 num_outstanding = 0; + u8 descriptor_type; + + ACPI_FUNCTION_TRACE(ut_dump_allocations); + + if (acpi_gbl_disable_mem_tracking) { + return; + } + + /* + * Walk the allocation list. + */ + if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) { + return; + } + + element = acpi_gbl_global_list->list_head; + while (element) { + if ((element->component & component) && + ((module == NULL) + || (0 == ACPI_STRCMP(module, element->module)))) { + descriptor = + ACPI_CAST_PTR(union acpi_descriptor, + &element->user_space); + + if (element->size < + sizeof(struct acpi_common_descriptor)) { + acpi_os_printf("%p Length 0x%04X %9.9s-%u " + "[Not a Descriptor - too small]\n", + descriptor, element->size, + element->module, element->line); + } else { + /* Ignore allocated objects that are in a cache */ + + if (ACPI_GET_DESCRIPTOR_TYPE(descriptor) != + ACPI_DESC_TYPE_CACHED) { + acpi_os_printf + ("%p Length 0x%04X %9.9s-%u [%s] ", + descriptor, element->size, + element->module, element->line, + acpi_ut_get_descriptor_name + (descriptor)); + + /* Validate the descriptor type using Type field and length */ + + descriptor_type = 0; /* Not a valid descriptor type */ + + switch (ACPI_GET_DESCRIPTOR_TYPE + (descriptor)) { + case ACPI_DESC_TYPE_OPERAND: + if (element->size == + sizeof(union + acpi_operand_object)) + { + descriptor_type = + ACPI_DESC_TYPE_OPERAND; + } + break; + + case ACPI_DESC_TYPE_PARSER: + if (element->size == + sizeof(union + acpi_parse_object)) { + descriptor_type = + ACPI_DESC_TYPE_PARSER; + } + break; + + case ACPI_DESC_TYPE_NAMED: + if (element->size == + sizeof(struct + acpi_namespace_node)) + { + descriptor_type = + ACPI_DESC_TYPE_NAMED; + } + break; + + default: + break; + } + + /* Display additional info for the major descriptor types */ + + switch (descriptor_type) { + case ACPI_DESC_TYPE_OPERAND: + acpi_os_printf + ("%12.12s RefCount 0x%04X\n", + acpi_ut_get_type_name + (descriptor->object.common. + type), + descriptor->object.common. + reference_count); + break; + + case ACPI_DESC_TYPE_PARSER: + acpi_os_printf + ("AmlOpcode 0x%04hX\n", + descriptor->op.asl. + aml_opcode); + break; + + case ACPI_DESC_TYPE_NAMED: + acpi_os_printf("%4.4s\n", + acpi_ut_get_node_name + (&descriptor-> + node)); + break; + + default: + acpi_os_printf("\n"); + break; + } + } + } + + num_outstanding++; + } + + element = element->next; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY); + + /* Print summary */ + + if (!num_outstanding) { + ACPI_INFO((AE_INFO, "No outstanding allocations")); + } else { + ACPI_ERROR((AE_INFO, "%u(0x%X) Outstanding allocations", + num_outstanding, num_outstanding)); + } + + return_VOID; +} + +#endif /* ACPI_DBG_TRACK_ALLOCATIONS */ |
