Lines Matching +full:firmware +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0
3 * main.c - Multi purpose firmware loading support
7 * Please see Documentation/driver-api/firmware/ for more information.
25 #include <linux/firmware.h>
42 #include "firmware.h"
46 MODULE_DESCRIPTION("Multi purpose firmware loading support");
57 * Names of firmware images which have been cached successfully
59 * helper can trace which firmware images have been cached
73 const char *name; member
78 const char *name; member
95 /* Builtin firmware support */
102 static void fw_copy_to_prealloc_buf(struct firmware *fw, in fw_copy_to_prealloc_buf()
105 if (!buf || size < fw->size) in fw_copy_to_prealloc_buf()
107 memcpy(buf, fw->data, fw->size); in fw_copy_to_prealloc_buf()
110 static bool fw_get_builtin_firmware(struct firmware *fw, const char *name, in fw_get_builtin_firmware() argument
116 if (strcmp(name, b_fw->name) == 0) { in fw_get_builtin_firmware()
117 fw->size = b_fw->size; in fw_get_builtin_firmware()
118 fw->data = b_fw->data; in fw_get_builtin_firmware()
128 static bool fw_is_builtin_firmware(const struct firmware *fw) in fw_is_builtin_firmware()
133 if (fw->data == b_fw->data) in fw_is_builtin_firmware()
139 #else /* Module case - no builtin firmware support */
141 static inline bool fw_get_builtin_firmware(struct firmware *fw, in fw_get_builtin_firmware()
142 const char *name, void *buf, in fw_get_builtin_firmware() argument
148 static inline bool fw_is_builtin_firmware(const struct firmware *fw) in fw_is_builtin_firmware()
156 struct fw_state *fw_st = &fw_priv->fw_st; in fw_state_init()
158 init_completion(&fw_st->completion); in fw_state_init()
159 fw_st->status = FW_STATUS_UNKNOWN; in fw_state_init()
190 fw_priv->fw_name = kstrdup_const(fw_name, GFP_ATOMIC); in __allocate_fw_priv()
191 if (!fw_priv->fw_name) { in __allocate_fw_priv()
196 kref_init(&fw_priv->ref); in __allocate_fw_priv()
197 fw_priv->fwc = fwc; in __allocate_fw_priv()
198 fw_priv->data = dbuf; in __allocate_fw_priv()
199 fw_priv->allocated_size = size; in __allocate_fw_priv()
200 fw_priv->offset = offset; in __allocate_fw_priv()
201 fw_priv->opt_flags = opt_flags; in __allocate_fw_priv()
204 INIT_LIST_HEAD(&fw_priv->pending_list); in __allocate_fw_priv()
207 pr_debug("%s: fw-%s fw_priv=%p\n", __func__, fw_name, fw_priv); in __allocate_fw_priv()
217 list_for_each_entry(tmp, &fwc->head, list) in __lookup_fw_priv()
218 if (!strcmp(tmp->fw_name, fw_name)) in __lookup_fw_priv()
223 /* Returns 1 for batching firmware requests with the same name */
234 spin_lock(&fwc->lock); in alloc_lookup_fw_priv()
236 * Do not merge requests that are marked to be non-cached or in alloc_lookup_fw_priv()
242 kref_get(&tmp->ref); in alloc_lookup_fw_priv()
243 spin_unlock(&fwc->lock); in alloc_lookup_fw_priv()
245 pr_debug("batched request - sharing the same struct fw_priv and lookup for multiple requests\n"); in alloc_lookup_fw_priv()
252 INIT_LIST_HEAD(&tmp->list); in alloc_lookup_fw_priv()
254 list_add(&tmp->list, &fwc->head); in alloc_lookup_fw_priv()
256 spin_unlock(&fwc->lock); in alloc_lookup_fw_priv()
260 return tmp ? 0 : -ENOMEM; in alloc_lookup_fw_priv()
264 __releases(&fwc->lock) in __free_fw_priv()
267 struct firmware_cache *fwc = fw_priv->fwc; in __free_fw_priv()
269 pr_debug("%s: fw-%s fw_priv=%p data=%p size=%u\n", in __free_fw_priv()
270 __func__, fw_priv->fw_name, fw_priv, fw_priv->data, in __free_fw_priv()
271 (unsigned int)fw_priv->size); in __free_fw_priv()
273 list_del(&fw_priv->list); in __free_fw_priv()
274 spin_unlock(&fwc->lock); in __free_fw_priv()
278 else if (!fw_priv->allocated_size) in __free_fw_priv()
279 vfree(fw_priv->data); in __free_fw_priv()
281 kfree_const(fw_priv->fw_name); in __free_fw_priv()
287 struct firmware_cache *fwc = fw_priv->fwc; in free_fw_priv()
288 spin_lock(&fwc->lock); in free_fw_priv()
289 if (!kref_put(&fw_priv->ref, __free_fw_priv)) in free_fw_priv()
290 spin_unlock(&fwc->lock); in free_fw_priv()
296 return fw_priv->is_paged_buf; in fw_is_paged_buf()
303 if (!fw_priv->pages) in fw_free_paged_buf()
306 vunmap(fw_priv->data); in fw_free_paged_buf()
308 for (i = 0; i < fw_priv->nr_pages; i++) in fw_free_paged_buf()
309 __free_page(fw_priv->pages[i]); in fw_free_paged_buf()
310 kvfree(fw_priv->pages); in fw_free_paged_buf()
311 fw_priv->pages = NULL; in fw_free_paged_buf()
312 fw_priv->page_array_size = 0; in fw_free_paged_buf()
313 fw_priv->nr_pages = 0; in fw_free_paged_buf()
319 if (fw_priv->page_array_size < pages_needed) { in fw_grow_paged_buf()
321 fw_priv->page_array_size * 2); in fw_grow_paged_buf()
327 return -ENOMEM; in fw_grow_paged_buf()
328 memcpy(new_pages, fw_priv->pages, in fw_grow_paged_buf()
329 fw_priv->page_array_size * sizeof(void *)); in fw_grow_paged_buf()
330 memset(&new_pages[fw_priv->page_array_size], 0, sizeof(void *) * in fw_grow_paged_buf()
331 (new_array_size - fw_priv->page_array_size)); in fw_grow_paged_buf()
332 kvfree(fw_priv->pages); in fw_grow_paged_buf()
333 fw_priv->pages = new_pages; in fw_grow_paged_buf()
334 fw_priv->page_array_size = new_array_size; in fw_grow_paged_buf()
337 while (fw_priv->nr_pages < pages_needed) { in fw_grow_paged_buf()
338 fw_priv->pages[fw_priv->nr_pages] = in fw_grow_paged_buf()
341 if (!fw_priv->pages[fw_priv->nr_pages]) in fw_grow_paged_buf()
342 return -ENOMEM; in fw_grow_paged_buf()
343 fw_priv->nr_pages++; in fw_grow_paged_buf()
352 if (!fw_priv->pages) in fw_map_paged_buf()
355 vunmap(fw_priv->data); in fw_map_paged_buf()
356 fw_priv->data = vmap(fw_priv->pages, fw_priv->nr_pages, 0, in fw_map_paged_buf()
358 if (!fw_priv->data) in fw_map_paged_buf()
359 return -ENOMEM; in fw_map_paged_buf()
366 * XZ-compressed firmware support
374 return xz_ret == XZ_MEM_ERROR ? -ENOMEM : -EINVAL; in fw_decompress_xz_error()
379 /* single-shot decompression onto the pre-allocated buffer */
387 xz_dec = xz_dec_init(XZ_SINGLE, (u32)-1); in fw_decompress_xz_single()
389 return -ENOMEM; in fw_decompress_xz_single()
394 xz_buf.out_size = fw_priv->allocated_size; in fw_decompress_xz_single()
395 xz_buf.out = fw_priv->data; in fw_decompress_xz_single()
401 fw_priv->size = xz_buf.out_pos; in fw_decompress_xz_single()
415 xz_dec = xz_dec_init(XZ_DYNALLOC, (u32)-1); in fw_decompress_xz_pages()
417 return -ENOMEM; in fw_decompress_xz_pages()
423 fw_priv->is_paged_buf = true; in fw_decompress_xz_pages()
424 fw_priv->size = 0; in fw_decompress_xz_pages()
426 if (fw_grow_paged_buf(fw_priv, fw_priv->nr_pages + 1)) { in fw_decompress_xz_pages()
427 err = -ENOMEM; in fw_decompress_xz_pages()
432 page = fw_priv->pages[fw_priv->nr_pages - 1]; in fw_decompress_xz_pages()
438 fw_priv->size += xz_buf.out_pos; in fw_decompress_xz_pages()
456 /* if the buffer is pre-allocated, we can perform in single-shot mode */ in fw_decompress_xz()
457 if (fw_priv->data) in fw_decompress_xz()
464 /* direct firmware loading support */
468 "/lib/firmware/updates/" UTS_RELEASE,
469 "/lib/firmware/updates",
470 "/lib/firmware/" UTS_RELEASE,
471 "/lib/firmware"
480 MODULE_PARM_DESC(path, "customized firmware image search path with a higher priority than default p…
492 int rc = -ENOENT; in fw_get_filesystem_firmware()
498 if (!decompress && fw_priv->data) { in fw_get_filesystem_firmware()
499 buffer = fw_priv->data; in fw_get_filesystem_firmware()
500 msize = fw_priv->allocated_size; in fw_get_filesystem_firmware()
505 return -ENOMEM; in fw_get_filesystem_firmware()
516 fw_path[i], fw_priv->fw_name, suffix); in fw_get_filesystem_firmware()
518 rc = -ENAMETOOLONG; in fw_get_filesystem_firmware()
522 fw_priv->size = 0; in fw_get_filesystem_firmware()
527 * firmware was not completely loaded. in fw_get_filesystem_firmware()
529 if ((fw_priv->opt_flags & FW_OPT_PARTIAL) && buffer) in fw_get_filesystem_firmware()
532 /* load firmware files from the mount namespace of init */ in fw_get_filesystem_firmware()
533 rc = kernel_read_file_from_path_initns(path, fw_priv->offset, in fw_get_filesystem_firmware()
538 if (rc != -ENOENT) in fw_get_filesystem_firmware()
549 dev_dbg(device, "Loading firmware from %s\n", path); in fw_get_filesystem_firmware()
552 fw_priv->fw_name); in fw_get_filesystem_firmware()
562 dev_dbg(device, "direct-loading %s\n", in fw_get_filesystem_firmware()
563 fw_priv->fw_name); in fw_get_filesystem_firmware()
564 if (!fw_priv->data) in fw_get_filesystem_firmware()
565 fw_priv->data = buffer; in fw_get_filesystem_firmware()
566 fw_priv->size = size; in fw_get_filesystem_firmware()
576 /* firmware holds the ownership of pages */
577 static void firmware_free_data(const struct firmware *fw) in firmware_free_data()
580 if (!fw->priv) { in firmware_free_data()
581 vfree(fw->data); in firmware_free_data()
584 free_fw_priv(fw->priv); in firmware_free_data()
587 /* store the pages buffer info firmware from buf */
588 static void fw_set_page_data(struct fw_priv *fw_priv, struct firmware *fw) in fw_set_page_data()
590 fw->priv = fw_priv; in fw_set_page_data()
591 fw->size = fw_priv->size; in fw_set_page_data()
592 fw->data = fw_priv->data; in fw_set_page_data()
594 pr_debug("%s: fw-%s fw_priv=%p data=%p size=%u\n", in fw_set_page_data()
595 __func__, fw_priv->fw_name, fw_priv, fw_priv->data, in fw_set_page_data()
596 (unsigned int)fw_priv->size); in fw_set_page_data()
604 if (fwn->magic == (unsigned long)&fw_cache) in fw_name_devm_release()
605 pr_debug("%s: fw_name-%s devm-%p released\n", in fw_name_devm_release()
606 __func__, fwn->name, res); in fw_name_devm_release()
607 kfree_const(fwn->name); in fw_name_devm_release()
615 return (fwn->magic == (unsigned long)&fw_cache) && in fw_devm_match()
616 !strcmp(fwn->name, match_data); in fw_devm_match()
620 const char *name) in fw_find_devm_name() argument
625 fw_devm_match, (void *)name); in fw_find_devm_name()
629 static bool fw_cache_is_setup(struct device *dev, const char *name) in fw_cache_is_setup() argument
633 fwn = fw_find_devm_name(dev, name); in fw_cache_is_setup()
640 /* add firmware name into devres list */
641 static int fw_add_devm_name(struct device *dev, const char *name) in fw_add_devm_name() argument
645 if (fw_cache_is_setup(dev, name)) in fw_add_devm_name()
651 return -ENOMEM; in fw_add_devm_name()
652 fwn->name = kstrdup_const(name, GFP_KERNEL); in fw_add_devm_name()
653 if (!fwn->name) { in fw_add_devm_name()
655 return -ENOMEM; in fw_add_devm_name()
658 fwn->magic = (unsigned long)&fw_cache; in fw_add_devm_name()
664 static bool fw_cache_is_setup(struct device *dev, const char *name) in fw_cache_is_setup() argument
669 static int fw_add_devm_name(struct device *dev, const char *name) in fw_add_devm_name() argument
675 int assign_fw(struct firmware *fw, struct device *device) in assign_fw()
677 struct fw_priv *fw_priv = fw->priv; in assign_fw()
681 if (!fw_priv->size || fw_state_is_aborted(fw_priv)) { in assign_fw()
683 return -ENOENT; in assign_fw()
687 * add firmware name into devres list so that we can auto cache in assign_fw()
688 * and uncache firmware for device. in assign_fw()
693 /* don't cache firmware handled without uevent */ in assign_fw()
694 if (device && (fw_priv->opt_flags & FW_OPT_UEVENT) && in assign_fw()
695 !(fw_priv->opt_flags & FW_OPT_NOCACHE)) { in assign_fw()
696 ret = fw_add_devm_name(device, fw_priv->fw_name); in assign_fw()
704 * After caching firmware image is started, let it piggyback in assign_fw()
705 * on request firmware. in assign_fw()
707 if (!(fw_priv->opt_flags & FW_OPT_NOCACHE) && in assign_fw()
708 fw_priv->fwc->state == FW_LOADER_START_CACHE) in assign_fw()
717 /* prepare firmware and firmware_buf structs;
718 * return 0 if a firmware is already assigned, 1 if need to load one,
722 _request_firmware_prepare(struct firmware **firmware_p, const char *name, in _request_firmware_prepare() argument
726 struct firmware *firmware; in _request_firmware_prepare() local
730 *firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL); in _request_firmware_prepare()
731 if (!firmware) { in _request_firmware_prepare()
732 dev_err(device, "%s: kmalloc(struct firmware) failed\n", in _request_firmware_prepare()
734 return -ENOMEM; in _request_firmware_prepare()
737 if (fw_get_builtin_firmware(firmware, name, dbuf, size)) { in _request_firmware_prepare()
738 dev_dbg(device, "using built-in %s\n", name); in _request_firmware_prepare()
742 ret = alloc_lookup_fw_priv(name, &fw_cache, &fw_priv, dbuf, size, in _request_firmware_prepare()
747 * of requesting firmware. in _request_firmware_prepare()
749 firmware->priv = fw_priv; in _request_firmware_prepare()
754 fw_set_page_data(fw_priv, firmware); in _request_firmware_prepare()
773 static void fw_abort_batch_reqs(struct firmware *fw) in fw_abort_batch_reqs()
778 if (!fw || !fw->priv) in fw_abort_batch_reqs()
781 fw_priv = fw->priv; in fw_abort_batch_reqs()
790 _request_firmware(const struct firmware **firmware_p, const char *name, in _request_firmware() argument
794 struct firmware *fw = NULL; in _request_firmware()
799 return -EINVAL; in _request_firmware()
801 if (!name || name[0] == '\0') { in _request_firmware()
802 ret = -EINVAL; in _request_firmware()
806 ret = _request_firmware_prepare(&fw, name, device, buf, size, in _request_firmware()
811 ret = fw_get_filesystem_firmware(device, fw->priv, "", NULL); in _request_firmware()
818 if (ret == -ENOENT && nondirect) in _request_firmware()
819 ret = fw_get_filesystem_firmware(device, fw->priv, ".xz", in _request_firmware()
822 if (ret == -ENOENT && nondirect) in _request_firmware()
823 ret = firmware_fallback_platform(fw->priv); in _request_firmware()
828 "Direct firmware load for %s failed with error %d\n", in _request_firmware()
829 name, ret); in _request_firmware()
831 ret = firmware_fallback_sysfs(fw, name, device, in _request_firmware()
848 * request_firmware() - send firmware request and wait for it
849 * @firmware_p: pointer to firmware image
850 * @name: name of firmware file
851 * @device: device for which firmware is being loaded
853 * @firmware_p will be used to return a firmware image by the name
854 * of @name for device @device.
858 * @name will be used as $FIRMWARE in the uevent environment and
860 * firmware image for this or any other device.
868 request_firmware(const struct firmware **firmware_p, const char *name, in request_firmware() argument
875 ret = _request_firmware(firmware_p, name, device, NULL, 0, 0, in request_firmware()
883 * firmware_request_nowarn() - request for an optional fw module
884 * @firmware: pointer to firmware image
885 * @name: name of firmware file
886 * @device: device for which firmware is being loaded
891 * failures to find the firmware file with it are still suppressed. It is
895 int firmware_request_nowarn(const struct firmware **firmware, const char *name, in firmware_request_nowarn() argument
902 ret = _request_firmware(firmware, name, device, NULL, 0, 0, in firmware_request_nowarn()
910 * request_firmware_direct() - load firmware directly without usermode helper
911 * @firmware_p: pointer to firmware image
912 * @name: name of firmware file
913 * @device: device for which firmware is being loaded
916 * fall back to usermode helper even if the firmware couldn't be loaded
920 int request_firmware_direct(const struct firmware **firmware_p, in request_firmware_direct()
921 const char *name, struct device *device) in request_firmware_direct() argument
926 ret = _request_firmware(firmware_p, name, device, NULL, 0, 0, in request_firmware_direct()
935 * firmware_request_platform() - request firmware with platform-fw fallback
936 * @firmware: pointer to firmware image
937 * @name: name of firmware file
938 * @device: device for which firmware is being loaded
942 * requested firmware embedded in the platform's main (e.g. UEFI) firmware.
944 int firmware_request_platform(const struct firmware **firmware, in firmware_request_platform() argument
945 const char *name, struct device *device) in firmware_request_platform() argument
951 ret = _request_firmware(firmware, name, device, NULL, 0, 0, in firmware_request_platform()
959 * firmware_request_cache() - cache firmware for suspend so resume can use it
960 * @name: name of firmware file
961 * @device: device for which firmware should be cached for
964 * require loading firmware on system reboot. This optimization may still
965 * require the firmware present on resume from suspend. This routine can be
966 * used to ensure the firmware is present on resume from suspend in these
970 int firmware_request_cache(struct device *device, const char *name) in firmware_request_cache() argument
975 ret = fw_add_devm_name(device, name); in firmware_request_cache()
983 * request_firmware_into_buf() - load firmware into a previously allocated buffer
984 * @firmware_p: pointer to firmware image
985 * @name: name of firmware file
986 * @device: device for which firmware is being loaded and DMA region allocated
987 * @buf: address of buffer to load firmware into
991 * allocate a buffer to hold the firmware data. Instead, the firmware
995 * This function doesn't cache firmware either.
998 request_firmware_into_buf(const struct firmware **firmware_p, const char *name, in request_firmware_into_buf() argument
1003 if (fw_cache_is_setup(device, name)) in request_firmware_into_buf()
1004 return -EOPNOTSUPP; in request_firmware_into_buf()
1007 ret = _request_firmware(firmware_p, name, device, buf, size, 0, in request_firmware_into_buf()
1015 * request_partial_firmware_into_buf() - load partial firmware into a previously allocated buffer
1016 * @firmware_p: pointer to firmware image
1017 * @name: name of firmware file
1018 * @device: device for which firmware is being loaded and DMA region allocated
1019 * @buf: address of buffer to load firmware into
1027 request_partial_firmware_into_buf(const struct firmware **firmware_p, in request_partial_firmware_into_buf()
1028 const char *name, struct device *device, in request_partial_firmware_into_buf() argument
1033 if (fw_cache_is_setup(device, name)) in request_partial_firmware_into_buf()
1034 return -EOPNOTSUPP; in request_partial_firmware_into_buf()
1037 ret = _request_firmware(firmware_p, name, device, buf, size, offset, in request_partial_firmware_into_buf()
1046 * release_firmware() - release the resource associated with a firmware image
1047 * @fw: firmware resource to release
1049 void release_firmware(const struct firmware *fw) in release_firmware()
1063 const char *name; member
1066 void (*cont)(const struct firmware *fw, void *context);
1073 const struct firmware *fw; in request_firmware_work_func()
1077 _request_firmware(&fw, fw_work->name, fw_work->device, NULL, 0, 0, in request_firmware_work_func()
1078 fw_work->opt_flags); in request_firmware_work_func()
1079 fw_work->cont(fw, fw_work->context); in request_firmware_work_func()
1080 put_device(fw_work->device); /* taken in request_firmware_nowait() */ in request_firmware_work_func()
1082 module_put(fw_work->module); in request_firmware_work_func()
1083 kfree_const(fw_work->name); in request_firmware_work_func()
1088 * request_firmware_nowait() - asynchronous version of request_firmware
1089 * @module: module requesting the firmware
1090 * @uevent: sends uevent to copy the firmware image if this flag
1091 * is non-zero else the firmware copy must be done manually.
1092 * @name: name of firmware file
1093 * @device: device for which firmware is being loaded
1096 * @fw may be %NULL if firmware request fails.
1097 * @cont: function will be called asynchronously when the firmware
1103 * - sleep for as small periods as possible since it may
1104 * increase kernel boot time of built-in device drivers
1105 * requesting firmware in their ->probe() methods, if
1108 * - can't sleep at all if @gfp is GFP_ATOMIC.
1113 const char *name, struct device *device, gfp_t gfp, void *context, in request_firmware_nowait() argument
1114 void (*cont)(const struct firmware *fw, void *context)) in request_firmware_nowait()
1120 return -ENOMEM; in request_firmware_nowait()
1122 fw_work->module = module; in request_firmware_nowait()
1123 fw_work->name = kstrdup_const(name, gfp); in request_firmware_nowait()
1124 if (!fw_work->name) { in request_firmware_nowait()
1126 return -ENOMEM; in request_firmware_nowait()
1128 fw_work->device = device; in request_firmware_nowait()
1129 fw_work->context = context; in request_firmware_nowait()
1130 fw_work->cont = cont; in request_firmware_nowait()
1131 fw_work->opt_flags = FW_OPT_NOWAIT | in request_firmware_nowait()
1134 if (!uevent && fw_cache_is_setup(device, name)) { in request_firmware_nowait()
1135 kfree_const(fw_work->name); in request_firmware_nowait()
1137 return -EOPNOTSUPP; in request_firmware_nowait()
1141 kfree_const(fw_work->name); in request_firmware_nowait()
1143 return -EFAULT; in request_firmware_nowait()
1146 get_device(fw_work->device); in request_firmware_nowait()
1147 INIT_WORK(&fw_work->work, request_firmware_work_func); in request_firmware_nowait()
1148 schedule_work(&fw_work->work); in request_firmware_nowait()
1157 * cache_firmware() - cache one firmware image in kernel memory space
1158 * @fw_name: the firmware image name
1160 * Cache firmware in kernel memory so that drivers can use it when
1161 * system isn't ready for them to request firmware image from userspace.
1163 * nowait version to get the cached firmware without any interacting
1166 * Return 0 if the firmware image has been cached successfully
1173 const struct firmware *fw; in cache_firmware()
1191 spin_lock(&fwc->lock); in lookup_fw_priv()
1193 spin_unlock(&fwc->lock); in lookup_fw_priv()
1199 * uncache_firmware() - remove one cached firmware image
1200 * @fw_name: the firmware image name
1202 * Uncache one firmware image which has been cached successfully
1205 * Return 0 if the firmware cache has been removed successfully
1212 struct firmware fw; in uncache_firmware()
1225 return -EINVAL; in uncache_firmware()
1228 static struct fw_cache_entry *alloc_fw_cache_entry(const char *name) in alloc_fw_cache_entry() argument
1236 fce->name = kstrdup_const(name, GFP_ATOMIC); in alloc_fw_cache_entry()
1237 if (!fce->name) { in alloc_fw_cache_entry()
1246 static int __fw_entry_found(const char *name) in __fw_entry_found() argument
1251 list_for_each_entry(fce, &fwc->fw_names, list) { in __fw_entry_found()
1252 if (!strcmp(fce->name, name)) in __fw_entry_found()
1260 const char *name = fw_priv->fw_name; in fw_cache_piggyback_on_request() local
1261 struct firmware_cache *fwc = fw_priv->fwc; in fw_cache_piggyback_on_request()
1264 spin_lock(&fwc->name_lock); in fw_cache_piggyback_on_request()
1265 if (__fw_entry_found(name)) in fw_cache_piggyback_on_request()
1268 fce = alloc_fw_cache_entry(name); in fw_cache_piggyback_on_request()
1270 list_add(&fce->list, &fwc->fw_names); in fw_cache_piggyback_on_request()
1271 kref_get(&fw_priv->ref); in fw_cache_piggyback_on_request()
1272 pr_debug("%s: fw: %s\n", __func__, name); in fw_cache_piggyback_on_request()
1275 spin_unlock(&fwc->name_lock); in fw_cache_piggyback_on_request()
1280 kfree_const(fce->name); in free_fw_cache_entry()
1291 ret = cache_firmware(fce->name); in __async_dev_cache_fw_image()
1293 spin_lock(&fwc->name_lock); in __async_dev_cache_fw_image()
1294 list_del(&fce->list); in __async_dev_cache_fw_image()
1295 spin_unlock(&fwc->name_lock); in __async_dev_cache_fw_image()
1301 /* called with dev->devres_lock held */
1306 const char *fw_name = fwn->name; in dev_create_fw_entry()
1312 list_add(&fce->list, head); in dev_create_fw_entry()
1319 return (fwn->magic == (unsigned long)match_data); in devm_name_match()
1334 list_del(&fce->list); in dev_cache_fw_image()
1336 spin_lock(&fwc->name_lock); in dev_cache_fw_image()
1337 /* only one cache entry for one firmware */ in dev_cache_fw_image()
1338 if (!__fw_entry_found(fce->name)) { in dev_cache_fw_image()
1339 list_add(&fce->list, &fwc->fw_names); in dev_cache_fw_image()
1344 spin_unlock(&fwc->name_lock); in dev_cache_fw_image()
1358 spin_lock(&fwc->name_lock); in __device_uncache_fw_images()
1359 while (!list_empty(&fwc->fw_names)) { in __device_uncache_fw_images()
1360 fce = list_entry(fwc->fw_names.next, in __device_uncache_fw_images()
1362 list_del(&fce->list); in __device_uncache_fw_images()
1363 spin_unlock(&fwc->name_lock); in __device_uncache_fw_images()
1365 uncache_firmware(fce->name); in __device_uncache_fw_images()
1368 spin_lock(&fwc->name_lock); in __device_uncache_fw_images()
1370 spin_unlock(&fwc->name_lock); in __device_uncache_fw_images()
1374 * device_cache_fw_images() - cache devices' firmware
1377 * successfully before, the firmware names are recored into the
1381 * time when system is not ready to complete loading firmware.
1391 cancel_delayed_work_sync(&fwc->work); in device_cache_fw_images()
1396 fwc->state = FW_LOADER_START_CACHE; in device_cache_fw_images()
1400 /* wait for completion of caching firmware for all devices */ in device_cache_fw_images()
1407 * device_uncache_fw_images() - uncache devices' firmware
1424 * device_uncache_fw_images_delay() - uncache devices firmwares
1469 /* stop caching firmware once syscore_suspend is reached */