| /Linux-v5.10/fs/btrfs/tests/ |
| D | free-space-tree-tests.c | 153 u32 alignment) in test_empty_block_group() argument
167 u32 alignment) in test_remove_all() argument
188 u32 alignment) in test_remove_beginning() argument
191 {cache->start + alignment, cache->length - alignment}, in test_remove_beginning()
196 cache->start, alignment); in test_remove_beginning()
211 u32 alignment) in test_remove_end() argument
214 {cache->start, cache->length - alignment}, in test_remove_end()
219 cache->start + cache->length - alignment, in test_remove_end()
220 alignment); in test_remove_end()
234 u32 alignment) in test_remove_middle() argument
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| /Linux-v5.10/tools/testing/selftests/exec/ |
| D | load_address.c | 11 unsigned long long alignment; member
25 stats->alignment = 0; in ExtractStatistics()
31 if (info->dlpi_phdr[i].p_align > stats->alignment) in ExtractStatistics()
32 stats->alignment = info->dlpi_phdr[i].p_align; in ExtractStatistics()
50 if (extracted.alignment == 0) { in main()
51 fprintf(stderr, "No alignment found\n"); in main()
53 } else if (extracted.alignment & (extracted.alignment - 1)) { in main()
54 fprintf(stderr, "Alignment is not a power of 2\n"); in main()
58 misalign = extracted.load_address & (extracted.alignment - 1); in main()
60 printf("alignment = %llu, load_address = %llu\n", in main()
[all …]
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| /Linux-v5.10/drivers/misc/ |
| D | pci_endpoint_test.c | 117 size_t alignment; member
123 size_t alignment; member
353 size_t alignment = test->alignment; in pci_endpoint_test_copy() local
366 if (size > SIZE_MAX - alignment) in pci_endpoint_test_copy()
378 orig_src_addr = kzalloc(size + alignment, GFP_KERNEL); in pci_endpoint_test_copy()
385 get_random_bytes(orig_src_addr, size + alignment); in pci_endpoint_test_copy()
387 size + alignment, DMA_TO_DEVICE); in pci_endpoint_test_copy()
394 if (alignment && !IS_ALIGNED(orig_src_phys_addr, alignment)) { in pci_endpoint_test_copy()
395 src_phys_addr = PTR_ALIGN(orig_src_phys_addr, alignment); in pci_endpoint_test_copy()
411 orig_dst_addr = kzalloc(size + alignment, GFP_KERNEL); in pci_endpoint_test_copy()
[all …]
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| /Linux-v5.10/arch/mips/include/asm/octeon/ |
| D | cvmx-bootmem.h | 41 /* minimum alignment of bootmem alloced blocks */
158 * @alignment: Alignment required - must be power of 2
162 uint64_t alignment);
181 * @alignment: Alignment required - must be power of 2
186 extern void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment,
200 * @align: Alignment of memory to be allocated. (must be a power of 2)
221 * @param align Alignment of memory to be allocated. (must be a power of 2)
251 * (optional) requested address and alignment.
261 * @alignment: Requested alignment of the block. If this alignment
263 * power of 2. (Note: Alignment of
[all …]
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| /Linux-v5.10/drivers/gpu/drm/i915/ |
| D | i915_gem_gtt.c | 164 * @alignment: required alignment of starting offset, may be 0 but
175 * is can insert the node. The hole address is aligned to @alignment and
194 u64 size, u64 alignment, unsigned long color, in i915_gem_gtt_insert() argument
205 GEM_BUG_ON(alignment && !is_power_of_2(alignment)); in i915_gem_gtt_insert()
206 GEM_BUG_ON(alignment && !IS_ALIGNED(alignment, I915_GTT_MIN_ALIGNMENT)); in i915_gem_gtt_insert()
216 if (unlikely(round_up(start, alignment) > round_down(end - size, alignment))) in i915_gem_gtt_insert()
226 * so we know that we always have a minimum alignment of 4096. in i915_gem_gtt_insert()
228 * with zero alignment, so where possible use the optimal in i915_gem_gtt_insert()
232 if (alignment <= I915_GTT_MIN_ALIGNMENT) in i915_gem_gtt_insert()
233 alignment = 0; in i915_gem_gtt_insert()
[all …]
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| /Linux-v5.10/Documentation/ABI/testing/ |
| D | sysfs-bus-iio-dma-buffer | 5 DMA buffers tend to have a alignment requirement for the
6 buffers. If this alignment requirement is not met samples might
9 This property reports the alignment requirements in bytes.
13 The alignment requirements in number of sample sets will depend
15 that the alignment requirement in samples sets might change
17 the alignment requirement reported in bytes by this property
|
| /Linux-v5.10/mm/ |
| D | cma.c | 173 phys_addr_t alignment; in cma_init_reserved_mem() local
184 /* ensure minimal alignment required by mm core */ in cma_init_reserved_mem()
185 alignment = PAGE_SIZE << in cma_init_reserved_mem()
188 /* alignment should be aligned with order_per_bit */ in cma_init_reserved_mem()
189 if (!IS_ALIGNED(alignment >> PAGE_SHIFT, 1 << order_per_bit)) in cma_init_reserved_mem()
192 if (ALIGN(base, alignment) != base || ALIGN(size, alignment) != size) in cma_init_reserved_mem()
221 * @alignment: Alignment for the CMA area, should be power of 2 or zero
238 phys_addr_t alignment, unsigned int order_per_bit, in cma_declare_contiguous_nid() argument
253 pr_debug("%s(size %pa, base %pa, limit %pa alignment %pa)\n", in cma_declare_contiguous_nid()
254 __func__, &size, &base, &limit, &alignment); in cma_declare_contiguous_nid()
[all …]
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| /Linux-v5.10/arch/mips/cavium-octeon/executive/ |
| D | cvmx-bootmem.c | 128 * @alignment: Alignment required - must be power of 2
131 static void *cvmx_bootmem_alloc_range(uint64_t size, uint64_t alignment, in cvmx_bootmem_alloc_range() argument
136 cvmx_bootmem_phy_alloc(size, min_addr, max_addr, alignment, 0); in cvmx_bootmem_alloc_range()
145 uint64_t alignment) in cvmx_bootmem_alloc_address() argument
147 return cvmx_bootmem_alloc_range(size, alignment, address, in cvmx_bootmem_alloc_address()
165 void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment, char *name) in cvmx_bootmem_alloc_named() argument
167 return cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name); in cvmx_bootmem_alloc_named()
218 uint64_t address_max, uint64_t alignment, in cvmx_bootmem_phy_alloc() argument
235 (unsigned long long)alignment); in cvmx_bootmem_phy_alloc()
259 /* Round req_size up to mult of minimum alignment bytes */ in cvmx_bootmem_phy_alloc()
[all …]
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| /Linux-v5.10/Documentation/arm/ |
| D | mem_alignment.rst | 2 Memory alignment
6 kernel code lately. Therefore the alignment fixup is now unconditionally
13 Of course this is a bad idea to rely on the alignment trap to perform
16 alignment trap can fixup misaligned access for the exception cases, but at
19 Now for user space applications, it is possible to configure the alignment
30 To change the alignment trap behavior, simply echo a number into
31 /proc/cpu/alignment. The number is made up from various bits:
56 echo 1 > /proc/cpu/alignment
|
| /Linux-v5.10/arch/powerpc/lib/ |
| D | rheap.c | 253 rh_info_t *rh_create(unsigned int alignment) in rh_create() argument
257 /* Alignment must be a power of two */ in rh_create()
258 if ((alignment & (alignment - 1)) != 0) in rh_create()
265 info->alignment = alignment; in rh_create()
300 void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks, in rh_init() argument
306 /* Alignment must be a power of two */ in rh_init()
307 if ((alignment & (alignment - 1)) != 0) in rh_init()
310 info->alignment = alignment; in rh_init()
338 m = info->alignment - 1; in rh_attach_region()
383 m = info->alignment - 1; in rh_detach_region()
[all …]
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| /Linux-v5.10/drivers/firmware/efi/libstub/ |
| D | relocate.c | 11 * @align: minimum alignment of the allocated memory area. It should
45 * Enforce minimum alignment that EFI or Linux requires when in efi_low_alloc_above()
48 * alignment constraints. in efi_low_alloc_above()
105 * @alignment: minimum alignment of the allocated memory area. It
110 * to @alignment but at least EFI_ALLOC_ALIGN. If the preferred address
123 unsigned long alignment, in efi_relocate_kernel() argument
145 * as possible while respecting the required alignment. in efi_relocate_kernel()
156 status = efi_low_alloc_above(alloc_size, alignment, &new_addr, in efi_relocate_kernel()
|
| /Linux-v5.10/Documentation/core-api/ |
| D | unaligned-memory-access.rst | 36 Natural alignment
39 The rule mentioned above forms what we refer to as natural alignment:
43 When writing code, assume the target architecture has natural alignment
46 In reality, only a few architectures require natural alignment on all sizes
48 writing code that satisfies natural alignment requirements is the easiest way
100 Fortunately, the compiler understands the alignment constraints, so in the
126 For a natural alignment scheme, the compiler would only have to add a single
128 to satisfy alignment constraints for arrays of these structures.
137 architectural alignment requirements. However, again, the compiler is aware
138 of the alignment constraints and will generate extra instructions to perform
[all …]
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| /Linux-v5.10/arch/um/drivers/ |
| D | cow_user.c | 58 * Add alignment field so that different alignments can be used for the
65 * by the bitmap alignment.
67 * by the alignment field. This is to allow COW files to be
69 * /dev/raw, with a 512 byte alignment restriction. This also
79 * align size to 8-byte alignment. This shifted all fields above (no padding
92 __u32 alignment; member
104 __u32 alignment; member
198 int sectorsize, int alignment, unsigned long long *size) in write_cow_header() argument
252 header->alignment = htobe32(alignment); in write_cow_header()
347 *align_out = be32toh(header->v3.alignment); in read_cow_header()
[all …]
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| /Linux-v5.10/arch/arm64/lib/ |
| D | memcmp.S | 18 * alignment handled by the hardware)
59 * The input source addresses are at alignment boundary.
94 * alignment boundary. Round down the addresses and then mask off
102 * We can not add limit with alignment offset(tmp1) here. Since the
112 lsl tmp1, tmp1, #3/* Bytes beyond alignment -> bits.*/
113 neg tmp1, tmp1/* Bits to alignment -64. */
124 /*src1 and src2 have different alignment offset.*/
160 add src1, src1, tmp3 /*backwards src1 to alignment boundary*/
173 /*How far is the current SRC2 from the alignment boundary...*/
181 * to an alignment boundary,load eight bytes and compare from
[all …]
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| /Linux-v5.10/arch/x86/ |
| D | Makefile | 15 # For gcc stack alignment is specified with -mpreferred-stack-boundary,
16 # clang has the option -mstack-alignment for that purpose.
20 else ifneq ($(call cc-option, -mstack-alignment=16),)
21 cc_stack_align4 := -mstack-alignment=4
22 cc_stack_align8 := -mstack-alignment=8
76 # alignment of 16 bytes. This reduces stack usage and the number of
77 # alignment instructions.
105 # By default gcc and clang use a stack alignment of 16 bytes for x86.
108 # alignment it will generate extra alignment instructions for the
109 # default alignment which keep the stack *mis*aligned.
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| /Linux-v5.10/block/ |
| D | blk-settings.c | 357 * blk_queue_alignment_offset - set physical block alignment offset
359 * @offset: alignment offset in bytes
483 * attempt to combine the values and ensure proper alignment.
486 * top device's block sizes and alignment offsets may be adjusted to
487 * ensure alignment with the bottom device. If no compatible sizes
495 unsigned int top, bottom, alignment, ret = 0; in blk_stack_limits() local
524 alignment = queue_limit_alignment_offset(b, start); in blk_stack_limits()
526 /* Bottom device has different alignment. Check that it is in blk_stack_limits()
527 * compatible with the current top alignment. in blk_stack_limits()
529 if (t->alignment_offset != alignment) { in blk_stack_limits()
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| /Linux-v5.10/arch/sh/lib/ |
| D | checksum.S | 45 * Fortunately, it is easy to convert 2-byte alignment to 4-byte
46 * alignment for the unrolled loop.
49 tst #3, r0 ! Check alignment.
50 bt/s 2f ! Jump if alignment is ok.
51 mov r4, r7 ! Keep a copy to check for alignment
53 tst #1, r0 ! Check alignment.
54 bt 21f ! Jump if alignment is boundary of 2bytes.
73 add #-2, r5 ! Alignment uses up two bytes.
207 tst r0,r5 ! Check dest alignment.
208 bt 2f ! Jump if alignment is ok.
[all …]
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| /Linux-v5.10/arch/xtensa/lib/ |
| D | memset.S | 30 * the alignment labels).
45 movi a6, 3 # for alignment tests
57 .align 4 # 1 mod 4 alignment for LOOPNEZ
58 .byte 0 # (0 mod 4 alignment for LBEG)
106 bbci.l a5, 0, .L20 # branch if dst alignment half-aligned
126 .byte 0 # 1 mod 4 alignment for LOOPNEZ
127 # (0 mod 4 alignment for LBEG)
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| /Linux-v5.10/arch/parisc/include/asm/ |
| D | ldcw.h | 6 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
7 and GCC only guarantees 8-byte alignment for stack locals, we can't
8 be assured of 16-byte alignment for atomic lock data even if we
28 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
29 they only require "natural" alignment (4-byte for ldcw, 8-byte for
|
| /Linux-v5.10/drivers/bluetooth/ |
| D | hci_h4.c | 159 u8 alignment = hu->alignment ? hu->alignment : 1; in h4_recv_buf() local
255 hu->padding = (skb->len - 1) % alignment; in h4_recv_buf()
256 hu->padding = (alignment - hu->padding) % alignment; in h4_recv_buf()
263 hu->padding = (skb->len - 1) % alignment; in h4_recv_buf()
264 hu->padding = (alignment - hu->padding) % alignment; in h4_recv_buf()
|
| /Linux-v5.10/arch/powerpc/include/asm/ |
| D | rheap.h | 27 unsigned int alignment; member
50 extern rh_info_t *rh_create(unsigned int alignment);
56 extern void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks,
65 /* Allocate the given size from the remote heap (with alignment) */
66 extern unsigned long rh_alloc_align(rh_info_t * info, int size, int alignment,
|
| /Linux-v5.10/drivers/mtd/ubi/ |
| D | vmt.c | 34 __ATTR(alignment, S_IRUGO, vol_attribute_show, NULL);
90 ret = sprintf(buf, "%d\n", vol->alignment); in vol_attribute_show()
207 vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment; in ubi_create_volume()
226 vol->alignment = req->alignment; in ubi_create_volume()
227 vol->data_pad = ubi->leb_size % vol->alignment; in ubi_create_volume()
285 vtbl_rec.alignment = cpu_to_be32(vol->alignment); in ubi_create_volume()
638 int reserved_pebs, alignment, data_pad, vol_type, name_len, upd_marker; in self_check_volume() local
656 if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 || in self_check_volume()
661 if (vol->alignment > ubi->leb_size || vol->alignment == 0) { in self_check_volume()
662 ubi_err(ubi, "bad alignment"); in self_check_volume()
[all …]
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| /Linux-v5.10/include/linux/mtd/ |
| D | ubi.h | 52 * @alignment: volume alignment
88 * because of the volume alignment (@alignment), the usable size of logical
90 * @usable_leb_size = LEB size - (LEB size mod @alignment),
93 * The alignment is multiple to the minimal flash input/output unit size or %1
96 * To put this differently, alignment may be considered is a way to change
108 int alignment; member
158 * alignment is not equivalent to %1.
|
| /Linux-v5.10/drivers/gpu/drm/ |
| D | drm_mm.c | 81 * drm_mm supports a few features: Alignment and range restrictions can be
506 * @alignment: alignment of the allocation
519 u64 size, u64 alignment, in drm_mm_insert_node_in_range() argument
536 if (alignment <= 1) in drm_mm_insert_node_in_range()
537 alignment = 0; in drm_mm_insert_node_in_range()
542 remainder_mask = is_power_of_2(alignment) ? alignment - 1 : 0; in drm_mm_insert_node_in_range()
571 if (alignment) { in drm_mm_insert_node_in_range()
577 div64_u64_rem(adj_start, alignment, &rem); in drm_mm_insert_node_in_range()
581 adj_start += alignment; in drm_mm_insert_node_in_range()
726 * @alignment: alignment of the allocation
[all …]
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| /Linux-v5.10/drivers/media/platform/mtk-mdp/ |
| D | mtk_mdp_core.h | 34 * struct mtk_mdp_pix_align - alignment of image
35 * @org_w: source alignment of width
36 * @org_h: source alignment of height
37 * @target_w: dst alignment of width
38 * @target_h: dst alignment of height
57 * @align: pointer to a pixel alignment struct, NULL if using default value
116 * @pix_align: alignment of image
|
