| /linux/Documentation/translations/zh_CN/mm/ |
| H A D | highmem.rst | 83 嵌套kmap_local_page()和kmap_atomic()映射在一定程度上是允许的（最多到KMAP_TYPE_NR），
87 * kmap_atomic(). 这允许对单个页面进行非常短的时间映射。由于映射被限制在发布它的CPU上，
90 kmap_atomic()也可以被中断上下文使用，因为它不睡眠，调用者也可能在调用kunmap_atomic()
93 内核中对kmap_atomic()的每次调用都会创建一个不可抢占的段，并禁用缺页异常。这可能是
94 未预期延迟的来源之一。因此用户应该选择kmap_local_page()而不是kmap_atomic()。
111 在64位系统中，调用kmap_local_page()、kmap_atomic()和kmap()没有实际作用，因为64位
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| /linux/arch/arm/mm/ |
| H A D | copypage-v4wt.c | 48 kto = kmap_atomic(to); in v4wt_copy_user_highpage()
49 kfrom = kmap_atomic(from); in v4wt_copy_user_highpage()
62 void *ptr, *kaddr = kmap_atomic(page); in v4wt_clear_user_highpage()
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| H A D | copypage-fa.c | 43 kto = kmap_atomic(to); in fa_copy_user_highpage()
44 kfrom = kmap_atomic(from); in fa_copy_user_highpage()
57 void *ptr, *kaddr = kmap_atomic(page); in fa_clear_user_highpage()
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| H A D | copypage-v4wb.c | 52 kto = kmap_atomic(to); in v4wb_copy_user_highpage()
53 kfrom = kmap_atomic(from); in v4wb_copy_user_highpage()
67 void *ptr, *kaddr = kmap_atomic(page); in v4wb_clear_user_highpage()
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| H A D | copypage-xsc3.c | 69 kto = kmap_atomic(to); in xsc3_mc_copy_user_highpage()
70 kfrom = kmap_atomic(from); in xsc3_mc_copy_user_highpage()
82 void *ptr, *kaddr = kmap_atomic(page); in xsc3_mc_clear_user_highpage()
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| H A D | copypage-feroceon.c | 71 kto = kmap_atomic(to); in feroceon_copy_user_highpage()
72 kfrom = kmap_atomic(from); in feroceon_copy_user_highpage()
81 void *ptr, *kaddr = kmap_atomic(page); in feroceon_clear_user_highpage()
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| H A D | copypage-v6.c | 35 kfrom = kmap_atomic(from); in v6_copy_user_highpage_nonaliasing()
36 kto = kmap_atomic(to); in v6_copy_user_highpage_nonaliasing()
48 void *kaddr = kmap_atomic(page); in v6_clear_user_highpage_nonaliasing()
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| H A D | copypage-xscale.c | 88 void *kto = kmap_atomic(to); in xscale_mc_copy_user_highpage()
110 void *ptr, *kaddr = kmap_atomic(page); in xscale_mc_clear_user_highpage()
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| H A D | copypage-v4mc.c | 68 void *kto = kmap_atomic(to); in v4_mc_copy_user_highpage()
89 void *ptr, *kaddr = kmap_atomic(page); in v4_mc_clear_user_highpage()
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| /linux/include/linux/ |
| H A D | highmem-internal.h | 108 static inline void *kmap_atomic(struct page *page) in kmap_atomic() function
205 static inline void *kmap_atomic(struct page *page) in kmap_atomic() function
217 return kmap_atomic(page); in kmap_atomic_prot()
222 return kmap_atomic(pfn_to_page(pfn)); in kmap_atomic_pfn()
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| /linux/drivers/block/ |
| H A D | brd.c | 138 dst = kmap_atomic(page); in copy_to_brd()
149 dst = kmap_atomic(page); in copy_to_brd()
169 src = kmap_atomic(page); in copy_from_brd()
181 src = kmap_atomic(page); in copy_from_brd()
211 mem = kmap_atomic(page); in brd_do_bvec()
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| /linux/mm/ |
| H A D | zsmalloc.c | |
| /linux/crypto/async_tx/ |
| H A D | async_memcpy.c | 78 dest_buf = kmap_atomic(dest) + dest_offset; in async_memcpy()
79 src_buf = kmap_atomic(src) + src_offset; in async_memcpy()
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| /linux/drivers/target/ |
| H A D | target_core_sbc.c | 409 unsigned char *addr = kmap_atomic(sg_page(sg)); in compare_and_write_do_cmp()
1173 paddr = kmap_atomic(sg_page(psg)) + psg->offset; in sbc_dif_generate()
1174 daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; in sbc_dif_generate()
1189 daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; in sbc_dif_generate()
1202 daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; in sbc_dif_generate()
1287 paddr = kmap_atomic(sg_page(psg)) + psg->offset; in sbc_dif_copy_prot()
1291 addr = kmap_atomic(sg_page(sg)) + sg->offset + offset; in sbc_dif_copy_prot()
1330 paddr = kmap_atomic(sg_page(psg)) + psg->offset; in sbc_dif_verify()
1331 daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; in sbc_dif_verify()
1347 daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; in sbc_dif_verify()
[all …]
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| /linux/Documentation/mm/ |
| H A D | highmem.rst | 61 These functions should always be used, whereas kmap_atomic() and kmap() have
99 Nesting kmap_local_page() and kmap_atomic() mappings is allowed to a certain
105 * kmap_atomic(). This function has been deprecated; use kmap_local_page().
109 calls to kmap_atomic() and kunmap_atomic() may implicitly depend on the side
121 kmap_atomic() may also be used by interrupt contexts, since it does not
125 Each call of kmap_atomic() in the kernel creates a non-preemptible section
127 users should prefer kmap_local_page() instead of kmap_atomic().
159 On 64-bit systems, calls to kmap_local_page(), kmap_atomic() and kmap() have
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| /linux/arch/um/kernel/skas/ |
| H A D | uaccess.c | 81 addr = (unsigned long) kmap_atomic(page) + in do_op_one_page()
272 addr = (unsigned long) kmap_atomic(page) + in arch_futex_atomic_op_inuser()
350 uaddr = kmap_atomic(page) + ((unsigned long) uaddr & ~PAGE_MASK); in futex_atomic_cmpxchg_inatomic()
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| /linux/drivers/crypto/ |
| H A D | omap-crypto.c | 181 srcb = kmap_atomic(sg_page(src)) + srco + src->offset; in omap_crypto_copy_data()
182 dstb = kmap_atomic(sg_page(dst)) + dsto + dst->offset; in omap_crypto_copy_data()
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| /linux/drivers/gpu/drm/ |
| H A D | drm_cache.c | 60 page_virtual = kmap_atomic(page); in drm_clflush_page()
109 page_virtual = kmap_atomic(page); in drm_clflush_pages()
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| /linux/fs/ocfs2/ |
| H A D | symlink.c | 75 kaddr = kmap_atomic(page); in ocfs2_fast_symlink_read_folio()
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| /linux/arch/xtensa/kernel/ |
| H A D | pci-dma.c | 36 void *vaddr = kmap_atomic(page); in do_cache_op()
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| /linux/arch/csky/mm/ |
| H A D | dma-mapping.c | 29 start = kmap_atomic(page); in cache_op()
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| /linux/drivers/target/tcm_fc/ |
| H A D | tfc_io.c | 141 from = kmap_atomic(page + (mem_off >> PAGE_SHIFT)); in ft_queue_data_in()
300 to = kmap_atomic(page + (mem_off >> PAGE_SHIFT)); in ft_recv_write_data()
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| /linux/arch/mips/mm/ |
| H A D | dma-noncoherent.c | 111 addr = kmap_atomic(page); in dma_sync_phys()
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| /linux/arch/powerpc/mm/ |
| H A D | dma-noncoherent.c | 71 start = (unsigned long)kmap_atomic(page + seg_nr) + seg_offset; in __dma_sync_page_highmem()
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| /linux/arch/riscv/kernel/probes/ |
| H A D | uprobes.c | 168 void *kaddr = kmap_atomic(page); in arch_uprobe_copy_ixol()
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