| /linux-6.6.21/block/ |
| D | blk-mq-tag.c | 20 static void blk_mq_update_wake_batch(struct blk_mq_tags *tags, in blk_mq_update_wake_batch() argument
26 sbitmap_queue_recalculate_wake_batch(&tags->bitmap_tags, in blk_mq_update_wake_batch()
28 sbitmap_queue_recalculate_wake_batch(&tags->breserved_tags, in blk_mq_update_wake_batch()
41 struct blk_mq_tags *tags = hctx->tags; in __blk_mq_tag_busy() local
59 spin_lock_irq(&tags->lock); in __blk_mq_tag_busy()
60 users = tags->active_queues + 1; in __blk_mq_tag_busy()
61 WRITE_ONCE(tags->active_queues, users); in __blk_mq_tag_busy()
62 blk_mq_update_wake_batch(tags, users); in __blk_mq_tag_busy()
63 spin_unlock_irq(&tags->lock); in __blk_mq_tag_busy()
69 void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool include_reserve) in blk_mq_tag_wakeup_all() argument
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| D | blk-mq.h | 58 void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
60 void blk_mq_free_rq_map(struct blk_mq_tags *tags);
64 struct blk_mq_tags *tags,
165 void blk_mq_free_tags(struct blk_mq_tags *tags);
173 void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
175 void blk_mq_put_tags(struct blk_mq_tags *tags, int *tag_array, int nr_tags);
177 struct blk_mq_tags **tags, unsigned int depth, bool can_grow);
182 void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool);
185 void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
211 static inline bool blk_mq_tag_is_reserved(struct blk_mq_tags *tags, in blk_mq_tag_is_reserved() argument
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| D | blk-mq.c | 312 blk_mq_tag_wakeup_all(hctx->tags, true); in blk_mq_wake_waiters()
349 struct blk_mq_tags *tags, unsigned int tag) in blk_mq_rq_ctx_init() argument
354 struct request *rq = tags->static_rqs[tag]; in blk_mq_rq_ctx_init()
409 struct blk_mq_tags *tags; in __blk_mq_alloc_requests_batch() local
418 tags = blk_mq_tags_from_data(data); in __blk_mq_alloc_requests_batch()
423 prefetch(tags->static_rqs[tag]); in __blk_mq_alloc_requests_batch()
425 rq = blk_mq_rq_ctx_init(data, tags, tag); in __blk_mq_alloc_requests_batch()
715 blk_mq_put_tag(hctx->tags, ctx, rq->tag); in __blk_mq_free_request()
1076 blk_mq_put_tags(hctx->tags, tag_array, nr_tags); in blk_mq_flush_tag_batch()
1082 int tags[TAG_COMP_BATCH], nr_tags = 0; in blk_mq_end_request_batch() local
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| /linux-6.6.21/drivers/gpu/drm/nouveau/nvkm/core/ |
| D | memory.c | 34 struct nvkm_tags *tags = *ptags; in nvkm_memory_tags_put() local
35 if (tags) { in nvkm_memory_tags_put()
36 mutex_lock(&fb->tags.mutex); in nvkm_memory_tags_put()
37 if (refcount_dec_and_test(&tags->refcount)) { in nvkm_memory_tags_put()
38 nvkm_mm_free(&fb->tags.mm, &tags->mn); in nvkm_memory_tags_put()
39 kfree(memory->tags); in nvkm_memory_tags_put()
40 memory->tags = NULL; in nvkm_memory_tags_put()
42 mutex_unlock(&fb->tags.mutex); in nvkm_memory_tags_put()
53 struct nvkm_tags *tags; in nvkm_memory_tags_get() local
55 mutex_lock(&fb->tags.mutex); in nvkm_memory_tags_get()
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| /linux-6.6.21/arch/arm64/mm/ |
| D | mteswap.c | 52 void *tags = xa_load(&mte_pages, entry.val); in mte_restore_tags() local
54 if (!tags) in mte_restore_tags()
58 mte_restore_page_tags(page_address(page), tags); in mte_restore_tags()
66 void *tags = xa_erase(&mte_pages, entry.val); in mte_invalidate_tags() local
68 mte_free_tag_storage(tags); in mte_invalidate_tags()
75 void *tags; in mte_invalidate_tags_area() local
80 xas_for_each(&xa_state, tags, last_entry.val - 1) { in mte_invalidate_tags_area()
82 mte_free_tag_storage(tags); in mte_invalidate_tags_area()
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| /linux-6.6.21/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ |
| D | nv20.c | 47 u32 tags = round_up(tiles / fb->ram->parts, 0x40); in nv20_fb_tile_comp() local
48 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv20_fb_tile_comp()
66 nvkm_mm_free(&fb->tags.mm, &tile->tag); in nv20_fb_tile_fini()
83 const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320); in nv20_fb_tags() local
84 return tags ? tags + 1 : 0; in nv20_fb_tags()
89 .tags = nv20_fb_tags,
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| D | nv36.c | 34 u32 tags = round_up(tiles / fb->ram->parts, 0x40); in nv36_fb_tile_comp() local
35 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv36_fb_tile_comp()
39 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14; in nv36_fb_tile_comp()
48 .tags = nv20_fb_tags,
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| D | nv35.c | 34 u32 tags = round_up(tiles / fb->ram->parts, 0x40); in nv35_fb_tile_comp() local
35 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv35_fb_tile_comp()
39 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 13; in nv35_fb_tile_comp()
48 .tags = nv20_fb_tags,
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| D | nv40.c | 34 u32 tags = round_up(tiles / fb->ram->parts, 0x100); in nv40_fb_tile_comp() local
36 !nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv40_fb_tile_comp()
39 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 8) << 13; in nv40_fb_tile_comp()
54 .tags = nv20_fb_tags,
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| D | nv25.c | 34 u32 tags = round_up(tiles / fb->ram->parts, 0x40); in nv25_fb_tile_comp() local
35 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv25_fb_tile_comp()
47 .tags = nv20_fb_tags,
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| D | base.c | 109 u32 tags = 0; in nvkm_fb_oneinit() local
129 if (fb->func->tags) { in nvkm_fb_oneinit()
130 tags = fb->func->tags(fb); in nvkm_fb_oneinit()
131 nvkm_debug(subdev, "%d comptags\n", tags); in nvkm_fb_oneinit()
134 return nvkm_mm_init(&fb->tags.mm, 0, 0, tags, 1); in nvkm_fb_oneinit()
243 nvkm_mm_fini(&fb->tags.mm); in nvkm_fb_dtor()
244 mutex_destroy(&fb->tags.mutex); in nvkm_fb_dtor()
279 mutex_init(&fb->tags.mutex); in nvkm_fb_ctor()
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| D | nv30.c | 53 u32 tags = round_up(tiles / fb->ram->parts, 0x40); in nv30_fb_tile_comp() local
54 if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { in nv30_fb_tile_comp()
58 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 12; in nv30_fb_tile_comp()
119 .tags = nv20_fb_tags,
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| /linux-6.6.21/arch/arm/kernel/ |
| D | atags_parse.c | 179 struct tag *tags = (struct tag *)&default_tags; in setup_machine_tags() local
199 tags = atags_vaddr; in setup_machine_tags()
201 tags = (void *)(PAGE_OFFSET + mdesc->atag_offset); in setup_machine_tags()
208 if (tags->hdr.tag != ATAG_CORE) in setup_machine_tags()
209 convert_to_tag_list(tags); in setup_machine_tags()
211 if (tags->hdr.tag != ATAG_CORE) { in setup_machine_tags()
213 tags = (struct tag *)&default_tags; in setup_machine_tags()
217 mdesc->fixup(tags, &from); in setup_machine_tags()
219 if (tags->hdr.tag == ATAG_CORE) { in setup_machine_tags()
221 squash_mem_tags(tags); in setup_machine_tags()
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| /linux-6.6.21/drivers/gpu/drm/nouveau/nvkm/subdev/volt/ |
| D | gpio.c | 30 static const u8 tags[] = { variable
42 for (i = 0; i < ARRAY_SIZE(tags); i++) { in nvkm_voltgpio_get()
44 int ret = nvkm_gpio_get(gpio, 0, tags[i], 0xff); in nvkm_voltgpio_get()
60 for (i = 0; i < ARRAY_SIZE(tags); i++, vid >>= 1) { in nvkm_voltgpio_set()
62 int ret = nvkm_gpio_set(gpio, 0, tags[i], 0xff, vid & 1); in nvkm_voltgpio_set()
85 for (i = 0; i < ARRAY_SIZE(tags); i++) { in nvkm_voltgpio_init()
87 int ret = nvkm_gpio_find(gpio, 0, tags[i], 0xff, &func); in nvkm_voltgpio_init()
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| /linux-6.6.21/arch/arm64/kernel/ |
| D | elfcore.c | 29 void *tags = NULL; in mte_dump_tag_range() local
55 if (!tags) { in mte_dump_tag_range()
56 tags = mte_allocate_tag_storage(); in mte_dump_tag_range()
57 if (!tags) { in mte_dump_tag_range()
64 mte_save_page_tags(page_address(page), tags); in mte_dump_tag_range()
66 if (!dump_emit(cprm, tags, MTE_PAGE_TAG_STORAGE)) { in mte_dump_tag_range()
72 if (tags) in mte_dump_tag_range()
73 mte_free_tag_storage(tags); in mte_dump_tag_range()
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| D | mte.c | 409 unsigned long tags, offset; in __access_remote_tags() local
435 tags = min(len, (PAGE_SIZE - offset) / MTE_GRANULE_SIZE); in __access_remote_tags()
439 tags = mte_copy_tags_from_user(maddr + offset, buf, tags); in __access_remote_tags()
442 tags = mte_copy_tags_to_user(buf, maddr + offset, tags); in __access_remote_tags()
447 if (!tags) in __access_remote_tags()
450 len -= tags; in __access_remote_tags()
451 buf += tags; in __access_remote_tags()
452 addr += tags * MTE_GRANULE_SIZE; in __access_remote_tags()
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| D | hibernate.c | 244 void *tags; in swsusp_mte_free_storage() local
247 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_free_storage()
248 mte_free_tag_storage(tags); in swsusp_mte_free_storage()
295 void *tags; in swsusp_mte_restore_tags() local
298 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_restore_tags()
302 mte_restore_page_tags(page_address(page), tags); in swsusp_mte_restore_tags()
304 mte_free_tag_storage(tags); in swsusp_mte_restore_tags()
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| /linux-6.6.21/arch/sparc/kernel/ |
| D | adi_64.c | 160 unsigned char *tags; in alloc_tag_store() local
284 tags = kzalloc(size, GFP_NOWAIT|__GFP_NOWARN); in alloc_tag_store()
285 if (tags == NULL) { in alloc_tag_store()
291 tag_desc->tags = tags; in alloc_tag_store()
302 unsigned char *tags = NULL; in del_tag_store() local
313 tags = tag_desc->tags; in del_tag_store()
314 tag_desc->tags = NULL; in del_tag_store()
318 kfree(tags); in del_tag_store()
322 ((tag_desc)->tags + ((addr - (tag_desc)->start)/(2*adi_blksize())))
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| /linux-6.6.21/Documentation/arch/arm64/ |
| D | memory-tagging-extension.rst | 36 To access the allocation tags, a user process must enable the Tagged
40 ``PROT_MTE`` - Pages allow access to the MTE allocation tags.
44 supported and the allocation tags can be shared between processes.
55 ``MADV_FREE`` may have the allocation tags cleared (set to 0) at any
62 the logical and allocation tags occurs on access, there are three
108 **Note**: There are no *match-all* logical tags available for user
122 The architecture allows excluding certain tags to be randomly generated
124 excludes all tags other than 0. A user thread can enable specific tags
126 flags, 0, 0, 0)`` system call where ``flags`` contains the tags bitmap
173 - ``PR_MTE_TAG_MASK`` set to 0 (all tags excluded)
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| D | tagged-pointers.rst | 38 Using non-zero address tags in any of these locations when the
44 passing non-zero address tags to the kernel via system calls is
49 address tags may suffer impaired or inaccurate debug and profiling
53 Preserving tags
56 When delivering signals, non-zero tags are not preserved in
59 that signal handlers in applications making use of tags cannot rely
73 Non-zero tags are never preserved in sigcontext.fault_address
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| /linux-6.6.21/tools/testing/selftests/arm64/mte/ |
| D | mte_common_util.c | 125 bool tags, int fd) in __mte_allocate_memory_range() argument
163 if (tags) in __mte_allocate_memory_range()
175 void *mte_allocate_memory(size_t size, int mem_type, int mapping, bool tags) in mte_allocate_memory() argument
177 return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, -1); in mte_allocate_memory()
180 void *mte_allocate_file_memory(size_t size, int mem_type, int mapping, bool tags, int fd) in mte_allocate_file_memory() argument
202 return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, fd); in mte_allocate_file_memory()
233 size_t range_before, size_t range_after, bool tags) in __mte_free_memory_range() argument
241 if (tags) in __mte_free_memory_range()
257 void mte_free_memory(void *ptr, size_t size, int mem_type, bool tags) in mte_free_memory() argument
259 __mte_free_memory_range(ptr, size, mem_type, 0, 0, tags); in mte_free_memory()
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| D | mte_common_util.h | 45 void *mte_allocate_memory(size_t size, int mem_type, int mapping, bool tags);
49 bool tags, int fd);
52 void mte_free_memory(void *ptr, size_t size, int mem_type, bool tags);
96 int mem_type, bool tags) in check_allocated_memory() argument
103 if (tags && !MT_FETCH_TAG((uintptr_t)ptr)) { in check_allocated_memory()
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| /linux-6.6.21/include/linux/ |
| D | radix-tree.h | 109 unsigned long tags; member
343 iter->tags = 0; in radix_tree_iter_retry()
401 iter->tags >>= 1; in radix_tree_next_slot()
402 if (unlikely(!iter->tags)) in radix_tree_next_slot()
404 if (likely(iter->tags & 1ul)) { in radix_tree_next_slot()
410 unsigned offset = __ffs(iter->tags); in radix_tree_next_slot()
412 iter->tags >>= offset++; in radix_tree_next_slot()
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| /linux-6.6.21/Documentation/arch/sparc/ |
| D | adi.rst | 6 ADI allows a task to set version tags on any subset of its address
7 space. Once ADI is enabled and version tags are set for ranges of
26 be repeated for entire page to set tags for entire page.
34 SPARC M7 processor, MMU uses bits 63-60 for version tags and ADI block
41 kernel sets the PSTATE.mcde bit for the task. Version tags for memory
61 - Version tags are set on virtual addresses from userspace even though
62 tags are stored in physical memory. Tags are set on a physical page
66 - When a task frees a memory page it had set version tags on, the page
69 version tags as well for the page. If a page allocated to a task is
70 freed and allocated back to the same task, old version tags set by the
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| /linux-6.6.21/drivers/block/ |
| D | ps3vram.c | 64 struct ps3vram_tag *tags; member
313 if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY)) in ps3vram_cache_evict()
317 cache->tags[entry].address); in ps3vram_cache_evict()
319 cache->tags[entry].address, DMA_PAGE_SIZE, in ps3vram_cache_evict()
323 entry * cache->page_size, cache->tags[entry].address, in ps3vram_cache_evict()
326 cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY; in ps3vram_cache_evict()
345 cache->tags[entry].address = address; in ps3vram_cache_load()
346 cache->tags[entry].flags |= CACHE_PAGE_PRESENT; in ps3vram_cache_load()
359 cache->tags[i].flags = 0; in ps3vram_cache_flush()
378 if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) && in ps3vram_cache_match()
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