^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Module Name: utcache - local cache allocation routines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2000 - 2020, Intel Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *****************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <acpi/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "accommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define _COMPONENT ACPI_UTILITIES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) ACPI_MODULE_NAME("utcache")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #ifdef ACPI_USE_LOCAL_CACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * FUNCTION: acpi_os_create_cache
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * PARAMETERS: cache_name - Ascii name for the cache
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * object_size - Size of each cached object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * max_depth - Maximum depth of the cache (in objects)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * return_cache - Where the new cache object is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * DESCRIPTION: Create a cache object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) acpi_os_create_cache(char *cache_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u16 object_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u16 max_depth, struct acpi_memory_list **return_cache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct acpi_memory_list *cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (!cache_name || !return_cache || !object_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return (AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* Create the cache object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (!cache) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return (AE_NO_MEMORY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) /* Populate the cache object and return it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) memset(cache, 0, sizeof(struct acpi_memory_list));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) cache->list_name = cache_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) cache->object_size = object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) cache->max_depth = max_depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) *return_cache = cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * FUNCTION: acpi_os_purge_cache
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * PARAMETERS: cache - Handle to cache object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * DESCRIPTION: Free all objects within the requested cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) acpi_status acpi_os_purge_cache(struct acpi_memory_list *cache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) void *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (!cache) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return (AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return (status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /* Walk the list of objects in this cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) while (cache->list_head) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* Delete and unlink one cached state object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) next = ACPI_GET_DESCRIPTOR_PTR(cache->list_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ACPI_FREE(cache->list_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) cache->list_head = next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) cache->current_depth--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * FUNCTION: acpi_os_delete_cache
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * PARAMETERS: cache - Handle to cache object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * DESCRIPTION: Free all objects within the requested cache and delete the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * cache object.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) acpi_status acpi_os_delete_cache(struct acpi_memory_list *cache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* Purge all objects in the cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) status = acpi_os_purge_cache(cache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return (status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /* Now we can delete the cache object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) acpi_os_free(cache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * FUNCTION: acpi_os_release_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * PARAMETERS: cache - Handle to cache object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * object - The object to be released
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * RETURN: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * DESCRIPTION: Release an object to the specified cache. If cache is full,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * the object is deleted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) acpi_status acpi_os_release_object(struct acpi_memory_list *cache, void *object)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) ACPI_FUNCTION_ENTRY();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (!cache || !object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) return (AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* If cache is full, just free this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (cache->current_depth >= cache->max_depth) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) ACPI_FREE(object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) ACPI_MEM_TRACKING(cache->total_freed++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* Otherwise put this object back into the cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return (status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* Mark the object as cached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) memset(object, 0xCA, cache->object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* Put the object at the head of the cache list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ACPI_SET_DESCRIPTOR_PTR(object, cache->list_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) cache->list_head = object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) cache->current_depth++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * FUNCTION: acpi_os_acquire_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * PARAMETERS: cache - Handle to cache object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * RETURN: the acquired object. NULL on error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * DESCRIPTION: Get an object from the specified cache. If cache is empty,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * the object is allocated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) void *acpi_os_acquire_object(struct acpi_memory_list *cache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) void *object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ACPI_FUNCTION_TRACE(os_acquire_object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (!cache) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ACPI_MEM_TRACKING(cache->requests++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* Check the cache first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (cache->list_head) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* There is an object available, use it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) object = cache->list_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) cache->list_head = ACPI_GET_DESCRIPTOR_PTR(object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) cache->current_depth--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) ACPI_MEM_TRACKING(cache->hits++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) "%s: Object %p from %s cache\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) ACPI_GET_FUNCTION_NAME, object,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) cache->list_name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* Clear (zero) the previously used Object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) memset(object, 0, cache->object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* The cache is empty, create a new object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) ACPI_MEM_TRACKING(cache->total_allocated++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) #ifdef ACPI_DBG_TRACK_ALLOCATIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if ((cache->total_allocated - cache->total_freed) >
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) cache->max_occupied) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) cache->max_occupied =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) cache->total_allocated - cache->total_freed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) object = ACPI_ALLOCATE_ZEROED(cache->object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (!object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return_PTR(object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #endif /* ACPI_USE_LOCAL_CACHE */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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