| /linux-5.15/block/ |
| A D | blk-mq-tag.c | 37 atomic_inc(&hctx->tags->active_queues); in __blk_mq_tag_busy()
46 void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool include_reserve) in blk_mq_tag_wakeup_all() argument
48 sbitmap_queue_wake_all(tags->bitmap_tags); in blk_mq_tag_wakeup_all()
50 sbitmap_queue_wake_all(tags->breserved_tags); in blk_mq_tag_wakeup_all()
59 struct blk_mq_tags *tags = hctx->tags; in __blk_mq_tag_idle() local
71 atomic_dec(&tags->active_queues); in __blk_mq_tag_idle()
74 blk_mq_tag_wakeup_all(tags, false); in __blk_mq_tag_idle()
92 struct blk_mq_tags *tags = blk_mq_tags_from_data(data); in blk_mq_get_tag() local
100 if (unlikely(!tags->nr_reserved_tags)) { in blk_mq_get_tag()
104 bt = tags->breserved_tags; in blk_mq_get_tag()
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| A D | blk-mq-tag.h | 34 extern void blk_mq_free_tags(struct blk_mq_tags *tags, unsigned int flags);
44 extern void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
47 struct blk_mq_tags **tags,
52 extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool);
55 void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
91 static inline bool blk_mq_tag_is_reserved(struct blk_mq_tags *tags, in blk_mq_tag_is_reserved() argument
94 return tag < tags->nr_reserved_tags; in blk_mq_tag_is_reserved()
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| A D | blk-mq.c | 272 blk_mq_tag_wakeup_all(hctx->tags, true); in blk_mq_wake_waiters()
287 struct blk_mq_tags *tags = blk_mq_tags_from_data(data); in blk_mq_rq_ctx_init() local
288 struct request *rq = tags->static_rqs[tag]; in blk_mq_rq_ctx_init()
507 blk_mq_put_tag(hctx->tags, ctx, rq->tag); in __blk_mq_free_request()
847 struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag) in blk_mq_tag_to_rq() argument
849 if (tag < tags->nr_tags) { in blk_mq_tag_to_rq()
850 prefetch(tags->rqs[tag]); in blk_mq_tag_to_rq()
851 return tags->rqs[tag]; in blk_mq_tag_to_rq()
1072 struct sbitmap_queue *bt = rq->mq_hctx->tags->bitmap_tags; in __blk_mq_get_driver_tag()
1073 unsigned int tag_offset = rq->mq_hctx->tags->nr_reserved_tags; in __blk_mq_get_driver_tag()
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| A D | blk-mq.h | 55 void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
57 void blk_mq_free_rq_map(struct blk_mq_tags *tags, unsigned int flags);
63 int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
173 return data->hctx->tags; in blk_mq_tags_from_data()
183 return hctx->nr_ctx && hctx->tags; in blk_mq_hw_queue_mapped()
246 blk_mq_put_tag(hctx->tags, rq->mq_ctx, rq->tag); in __blk_mq_put_driver_tag()
344 users = atomic_read(&hctx->tags->active_queues); in hctx_may_queue()
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| /linux-5.15/drivers/gpu/drm/nouveau/nvkm/core/ |
| A 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-5.15/fs/erofs/ |
| A D | tagptr.h | 57 const typeof(_tags) tags = (_tags); \
58 if (__builtin_constant_p(tags) && (tags & ~__tagptr_mask(type))) \
60 tagptr_init(type, (uintptr_t)(ptr) | tags); })
86 #define tagptr_replace_tags(_ptptr, tags) ({ \ argument
88 *ptptr = tagptr_fold(*ptptr, tagptr_unfold_ptr(*ptptr), tags); \
93 const typeof(_tags) tags = (_tags); \
94 if (__builtin_constant_p(tags) && (tags & ~__tagptr_mask(*ptptr))) \
96 ptptr->v |= tags; \
101 const typeof(_tags) tags = (_tags); \
102 if (__builtin_constant_p(tags) && (tags & ~__tagptr_mask(*ptptr))) \
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| /linux-5.15/arch/arm64/mm/ |
| A D | mteswap.c | 51 void *tags = xa_load(&mte_pages, entry.val); in mte_restore_tags() local
53 if (!tags) in mte_restore_tags()
65 mte_restore_page_tags(page_address(page), tags); in mte_restore_tags()
73 void *tags = xa_erase(&mte_pages, entry.val); in mte_invalidate_tags() local
75 mte_free_tag_storage(tags); in mte_invalidate_tags()
82 void *tags; in mte_invalidate_tags_area() local
87 xas_for_each(&xa_state, tags, last_entry.val - 1) { in mte_invalidate_tags_area()
89 mte_free_tag_storage(tags); in mte_invalidate_tags_area()
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| /linux-5.15/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ |
| A 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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| A 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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| A 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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| A 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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| A 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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| A D | base.c | 100 u32 tags = 0; in nvkm_fb_oneinit() local
120 if (fb->func->tags) { in nvkm_fb_oneinit()
121 tags = fb->func->tags(fb); in nvkm_fb_oneinit()
122 nvkm_debug(subdev, "%d comptags\n", tags); in nvkm_fb_oneinit()
125 return nvkm_mm_init(&fb->tags.mm, 0, 0, tags, 1); in nvkm_fb_oneinit()
208 nvkm_mm_fini(&fb->tags.mm); in nvkm_fb_dtor()
209 mutex_destroy(&fb->tags.mutex); in nvkm_fb_dtor()
236 mutex_init(&fb->tags.mutex); in nvkm_fb_ctor()
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| A 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-5.15/arch/arm/kernel/ |
| H A 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-5.15/drivers/gpu/drm/nouveau/nvkm/subdev/volt/ |
| A 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-5.15/arch/sparc/kernel/ |
| A 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-5.15/arch/arm64/kernel/ |
| A D | mte.c | 293 unsigned long tags, offset; in __access_remote_tags() local
318 tags = min(len, (PAGE_SIZE - offset) / MTE_GRANULE_SIZE); in __access_remote_tags()
322 tags = mte_copy_tags_from_user(maddr + offset, buf, tags); in __access_remote_tags()
325 tags = mte_copy_tags_to_user(buf, maddr + offset, tags); in __access_remote_tags()
330 if (!tags) in __access_remote_tags()
333 len -= tags; in __access_remote_tags()
334 buf += tags; in __access_remote_tags()
335 addr += tags * MTE_GRANULE_SIZE; in __access_remote_tags()
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| A D | hibernate.c | 271 void *tags; in swsusp_mte_free_storage() local
274 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_free_storage()
275 mte_free_tag_storage(tags); in swsusp_mte_free_storage()
322 void *tags; in swsusp_mte_restore_tags() local
325 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_restore_tags()
334 mte_restore_page_tags(page_address(page), tags); in swsusp_mte_restore_tags()
336 mte_free_tag_storage(tags); in swsusp_mte_restore_tags()
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| /linux-5.15/tools/testing/selftests/arm64/mte/ |
| A D | mte_common_util.c | 121 bool tags, int fd) in __mte_allocate_memory_range() argument
156 if (tags) in __mte_allocate_memory_range()
168 void *mte_allocate_memory(size_t size, int mem_type, int mapping, bool tags) in mte_allocate_memory() argument
170 return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, -1); in mte_allocate_memory()
173 void *mte_allocate_file_memory(size_t size, int mem_type, int mapping, bool tags, int fd) in mte_allocate_file_memory() argument
195 return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, fd); in mte_allocate_file_memory()
226 size_t range_before, size_t range_after, bool tags) in __mte_free_memory_range() argument
234 if (tags) in __mte_free_memory_range()
250 void mte_free_memory(void *ptr, size_t size, int mem_type, bool tags) in mte_free_memory() argument
252 __mte_free_memory_range(ptr, size, mem_type, 0, 0, tags); in mte_free_memory()
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| A 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);
85 int mem_type, bool tags) in check_allocated_memory() argument
92 if (tags && !MT_FETCH_TAG((uintptr_t)ptr)) { in check_allocated_memory()
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| /linux-5.15/Documentation/arm64/ |
| A 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
104 **Note**: There are no *match-all* logical tags available for user
118 The architecture allows excluding certain tags to be randomly generated
120 excludes all tags other than 0. A user thread can enable specific tags
122 flags, 0, 0, 0)`` system call where ``flags`` contains the tags bitmap
162 - ``PR_MTE_TAG_MASK`` set to 0 (all tags excluded)
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| A 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-5.15/include/linux/ |
| H A D | radix-tree.h | 107 unsigned long tags; member
341 iter->tags = 0; in radix_tree_iter_retry()
399 iter->tags >>= 1; in radix_tree_next_slot()
400 if (unlikely(!iter->tags)) in radix_tree_next_slot()
402 if (likely(iter->tags & 1ul)) { in radix_tree_next_slot()
408 unsigned offset = __ffs(iter->tags); in radix_tree_next_slot()
410 iter->tags >>= offset++; in radix_tree_next_slot()
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| /linux-5.15/Documentation/sparc/ |
| A 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 fot 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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