| /linux/tools/testing/selftests/arm64/mte/ |
| H A D | check_mmap_options.c | 47 int mapping; member
113 static int check_anonymous_memory_mapping(int mem_type, int mode, int mapping, in check_anonymous_memory_mapping() argument
126 map_ptr = (char *)mte_allocate_memory(map_size, mem_type, mapping, false); in check_anonymous_memory_mapping()
148 static int check_file_memory_mapping(int mem_type, int mode, int mapping, in check_file_memory_mapping() argument
166 map_ptr = (char *)mte_allocate_file_memory(map_size, mem_type, mapping, false, fd); in check_file_memory_mapping()
191 static int check_clear_prot_mte_flag(int mem_type, int mode, int mapping, int atag_check) in check_clear_prot_mte_flag() argument
201 ptr = (char *)mte_allocate_memory_tag_range(sizes[run], mem_type, mapping, in check_clear_prot_mte_flag()
222 ptr = (char *)mte_allocate_file_memory_tag_range(sizes[run], mem_type, mapping, in check_clear_prot_mte_flag()
300 switch (tc->mapping) { in format_test_name()
337 "Check %s with %s mapping, in format_test_name()
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| H A D | check_child_memory.c | 84 static int check_child_memory_mapping(int mem_type, int mode, int mapping) in check_child_memory_mapping() argument
93 ptr = (char *)mte_allocate_memory_tag_range(sizes[run], mem_type, mapping, in check_child_memory_mapping()
106 static int check_child_file_mapping(int mem_type, int mode, int mapping) in check_child_file_mapping() argument
119 map_ptr = (char *)mte_allocate_file_memory(map_size, mem_type, mapping, false, fd); in check_child_file_mapping()
172 "Check child anonymous memory with private mapping, precise mode and mmap memory\n"); in main()
174 "Check child anonymous memory with shared mapping, precise mode and mmap memory\n"); in main()
176 "Check child anonymous memory with private mapping, imprecise mode and mmap memory\n"); in main()
178 "Check child anonymous memory with shared mapping, imprecise mode and mmap memory\n"); in main()
180 "Check child anonymous memory with private mapping, precise mode and mmap/mprotect memory\n"); in main()
182 "Check child anonymous memory with shared mapping, precis in main()
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| H A D | check_hugetlb_options.c | 146 static int check_hugetlb_memory_mapping(int mem_type, int mode, int mapping, int tag_check) in check_hugetlb_memory_mapping() argument
155 map_ptr = (char *)mte_allocate_memory(map_size, mem_type, mapping, false); in check_hugetlb_memory_mapping()
176 static int check_clear_prot_mte_flag(int mem_type, int mode, int mapping) in check_clear_prot_mte_flag() argument
185 map_ptr = (char *)mte_allocate_memory_tag_range(map_size, mem_type, mapping, in check_clear_prot_mte_flag()
205 static int check_child_hugetlb_memory_mapping(int mem_type, int mode, int mapping) in check_child_hugetlb_memory_mapping() argument
214 ptr = (char *)mte_allocate_memory_tag_range(map_size, mem_type, mapping, in check_child_hugetlb_memory_mapping()
265 "Check hugetlb memory with private mapping, sync error mode, mmap memory and tag check off\n"); in main()
269 "Check hugetlb memory with private mapping, no error mode, mmap memory and tag check off\n"); in main()
272 "Check hugetlb memory with private mapping, sync error mode, mmap memory and tag check on\n"); in main()
274 "Check hugetlb memory with private mapping, syn in main()
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| /linux/include/linux/ |
| H A D | io-mapping.h | 17 * The io_mapping mechanism provides an abstraction for mapping
20 * See Documentation/driver-api/io-mapping.rst
35 * For small address space machines, mapping large objects
58 io_mapping_fini(struct io_mapping *mapping) in io_mapping_fini() argument
60 iomap_free(mapping->base, mapping->size); in io_mapping_fini()
65 io_mapping_map_atomic_wc(struct io_mapping *mapping, in io_mapping_map_atomic_wc() argument
70 BUG_ON(offset >= mapping->size); in io_mapping_map_atomic_wc()
71 phys_addr = mapping->base + offset; in io_mapping_map_atomic_wc()
77 return __iomap_local_pfn_prot(PHYS_PFN(phys_addr), mapping->prot); in io_mapping_map_atomic_wc()
92 io_mapping_map_local_wc(struct io_mapping *mapping, unsigned long offset) in io_mapping_map_local_wc() argument
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| /linux/drivers/gpu/drm/tegra/ |
| H A D | uapi.c | 17 struct tegra_drm_mapping *mapping = in tegra_drm_mapping_release() local
20 host1x_bo_unpin(mapping->map); in tegra_drm_mapping_release()
21 host1x_bo_put(mapping->bo); in tegra_drm_mapping_release()
23 kfree(mapping); in tegra_drm_mapping_release()
26 void tegra_drm_mapping_put(struct tegra_drm_mapping *mapping) in tegra_drm_mapping_put() argument
28 kref_put(&mapping->ref, tegra_drm_mapping_release); in tegra_drm_mapping_put()
33 struct tegra_drm_mapping *mapping; in tegra_drm_channel_context_close() local
39 xa_for_each(&context->mappings, id, mapping) in tegra_drm_channel_context_close()
40 tegra_drm_mapping_put(mapping); in tegra_drm_channel_context_close()
192 struct tegra_drm_mapping *mapping; in tegra_drm_ioctl_channel_map() local
[all …]
|
| /linux/arch/arm/mm/ |
| H A D | dma-mapping.c | 3 * linux/arch/arm/mm/dma-mapping.c
7 * DMA uncached mapping support.
290 * Clear previous low-memory mapping to ensure that the in dma_contiguous_remap()
603 * Free a buffer as defined by the above mapping.
677 * Use the driver DMA support - see dma-mapping.h (dma_sync_*)
752 static int extend_iommu_mapping(struct dma_iommu_mapping *mapping);
754 static inline dma_addr_t __alloc_iova(struct dma_iommu_mapping *mapping, in __alloc_iova() argument
760 size_t mapping_size = mapping->bits << PAGE_SHIFT; in __alloc_iova()
771 spin_lock_irqsave(&mapping->lock, flags); in __alloc_iova()
772 for (i = 0; i < mapping->nr_bitmaps; i++) { in __alloc_iova()
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| /linux/drivers/gpu/drm/etnaviv/ |
| H A D | etnaviv_mmu.c | 6 #include <linux/dma-mapping.h>
55 /* unroll mapping in case something went wrong */ in etnaviv_context_map()
115 struct etnaviv_vram_mapping *mapping) in etnaviv_iommu_remove_mapping() argument
117 struct etnaviv_gem_object *etnaviv_obj = mapping->object; in etnaviv_iommu_remove_mapping()
121 etnaviv_iommu_unmap(context, mapping->vram_node.start, in etnaviv_iommu_remove_mapping()
123 drm_mm_remove_node(&mapping->vram_node); in etnaviv_iommu_remove_mapping()
126 void etnaviv_iommu_reap_mapping(struct etnaviv_vram_mapping *mapping) in etnaviv_iommu_reap_mapping() argument
128 struct etnaviv_iommu_context *context = mapping->context; in etnaviv_iommu_reap_mapping()
131 WARN_ON(mapping->use); in etnaviv_iommu_reap_mapping()
133 etnaviv_iommu_remove_mapping(context, mapping); in etnaviv_iommu_reap_mapping()
[all …]
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| /linux/Documentation/driver-api/ |
| H A D | io-mapping.rst | 8 The io_mapping functions in linux/io-mapping.h provide an abstraction for
9 efficiently mapping small regions of an I/O device to the CPU. The initial
14 A mapping object is created during driver initialization using::
20 mappable, while 'size' indicates how large a mapping region to
23 This _wc variant provides a mapping which may only be used with
27 With this mapping object, individual pages can be mapped either temporarily
31 void *io_mapping_map_local_wc(struct io_mapping *mapping,
34 void *io_mapping_map_atomic_wc(struct io_mapping *mapping,
37 'offset' is the offset within the defined mapping region. Accessing
46 Temporary mappings are only valid in the context of the caller. The mapping
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|
| /linux/tools/testing/selftests/mm/ |
| H A D | mremap_dontunmap.c | 59 "unable to unmap destination mapping"); in kernel_support_for_mremap_dontunmap()
63 "unable to unmap source mapping"); in kernel_support_for_mremap_dontunmap()
67 // This helper will just validate that an entire mapping contains the expected
94 // the source mapping mapped.
106 // Try to just move the whole mapping anywhere (not fixed). in mremap_dontunmap_simple()
122 "unable to unmap destination mapping"); in mremap_dontunmap_simple()
124 "unable to unmap source mapping"); in mremap_dontunmap_simple()
128 // This test validates that MREMAP_DONTUNMAP on a shared mapping works as expected.
148 // Try to just move the whole mapping anywhere (not fixed). in mremap_dontunmap_simple_shmem()
155 "unable to unmap source mapping"); in mremap_dontunmap_simple_shmem()
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| /linux/tools/testing/selftests/vfio/ |
| H A D | vfio_dma_mapping_test.c | 39 struct iommu_mapping *mapping) in intel_iommu_mapping_get() argument
67 memset(mapping, 0, sizeof(*mapping)); in intel_iommu_mapping_get()
68 parse_next_value(&rest, &mapping->pgd); in intel_iommu_mapping_get()
69 parse_next_value(&rest, &mapping->p4d); in intel_iommu_mapping_get()
70 parse_next_value(&rest, &mapping->pud); in intel_iommu_mapping_get()
71 parse_next_value(&rest, &mapping->pmd); in intel_iommu_mapping_get()
72 parse_next_value(&rest, &mapping->pte); in intel_iommu_mapping_get()
87 struct iommu_mapping *mapping) in iommu_mapping_get() argument
90 return intel_iommu_mapping_get(bdf, iova, mapping); in iommu_mapping_get()
139 struct iommu_mapping mapping; TEST_F() local
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| /linux/Documentation/core-api/ |
| H A D | dma-attributes.rst | 6 defined in linux/dma-mapping.h.
11 DMA_ATTR_WEAK_ORDERING specifies that reads and writes to the mapping
21 DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be
32 virtual mapping for the allocated buffer. On some architectures creating
33 such mapping is non-trivial task and consumes very limited resources
52 having a mapping created separately for each device and is usually
67 device domain after releasing a mapping for it. Use this attribute with
73 By default DMA-mapping subsystem is allowed to assemble the buffer
82 This is a hint to the DMA-mapping subsystem that it's probably not worth
84 efficiency (AKA it's not worth trying to build the mapping out of larger
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|
| /linux/drivers/sh/clk/ |
| H A D | core.c | 340 struct clk_mapping *mapping = clk->mapping; in clk_establish_mapping() local
345 if (!mapping) { in clk_establish_mapping()
349 * dummy mapping for root clocks with no specified ranges in clk_establish_mapping()
352 clk->mapping = &dummy_mapping; in clk_establish_mapping()
357 * If we're on a child clock and it provides no mapping of its in clk_establish_mapping()
358 * own, inherit the mapping from its root clock. in clk_establish_mapping()
361 mapping = clkp->mapping; in clk_establish_mapping()
362 BUG_ON(!mapping); in clk_establish_mapping()
366 * Establish initial mapping. in clk_establish_mapping()
368 if (!mapping->base && mapping->phys) { in clk_establish_mapping()
[all …]
|
| /linux/mm/ |
| H A D | readahead.c | 142 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping) in file_ra_state_init() argument
144 ra->ra_pages = inode_to_bdi(mapping->host)->ra_pages; in file_ra_state_init()
162 const struct address_space_operations *aops = rac->mapping->a_ops; in read_pages()
218 * Context: File is referenced by caller, and ractl->mapping->invalidate_lock
225 struct address_space *mapping = ractl->mapping; in page_cache_ra_unbounded() local
227 gfp_t gfp_mask = readahead_gfp_mask(mapping); in page_cache_ra_unbounded()
229 unsigned int min_nrpages = mapping_min_folio_nrpages(mapping); in page_cache_ra_unbounded()
238 * filesystems already specify __GFP_NOFS in their mapping's in page_cache_ra_unbounded()
243 lockdep_assert_held(&mapping->invalidate_lock); in page_cache_ra_unbounded()
245 trace_page_cache_ra_unbounded(mapping->host, index, nr_to_read, in page_cache_ra_unbounded()
[all …]
|
| /linux/Documentation/mm/ |
| H A D | highmem.rst | 18 The part of (physical) memory not covered by a permanent mapping is what we
64 These mappings are thread-local and CPU-local, meaning that the mapping
66 CPU while the mapping is active. Although preemption is never disabled by
68 CPU-hotplug until the mapping is disposed.
71 in which the local mapping is acquired does not allow it for other reasons.
82 virtual address of the direct mapping. Only real highmem pages are
95 therefore try to design their code to avoid the use of kmap() by mapping
107 NOTE: Conversions to kmap_local_page() must take care to follow the mapping
116 This permits a very short duration mapping of a single page. Since the
117 mapping is restricted to the CPU that issued it, it performs well, but
[all …]
|
| /linux/tools/testing/selftests/namespaces/ |
| H A D | file_handle_test.c | 491 /* Disable setgroups to allow gid mapping */ in TEST()
496 char mapping[64]; in TEST() local
497 snprintf(mapping, sizeof(mapping), "0 %d 1", getuid()); in TEST()
498 write(uid_map_fd, mapping, strlen(mapping)); in TEST()
501 snprintf(mapping, sizeof(mapping), "0 %d 1", getgid()); in TEST()
502 write(gid_map_fd, mapping, strlen(mapping)); in TEST()
620 /* Disable setgroups to allow gid mapping */ in TEST()
625 char mapping[64]; in TEST() local
626 snprintf(mapping, sizeof(mapping), "0 %d 1", getuid()); in TEST()
627 write(uid_map_fd, mapping, strlen(mapping)); in TEST()
[all …]
|
| /linux/Documentation/arch/riscv/ |
| H A D | boot.rst | 14 mapping is set up.
40 PMPs, in the direct mapping, so the firmware must correctly mark those regions
117 Virtual mapping installation
120 The installation of the virtual mapping is done in 2 steps in the RISC-V kernel:
122 1. ``setup_vm()`` installs a temporary kernel mapping in ``early_pg_dir`` which
124 at this point. When establishing this mapping, no allocation can be done
128 2. ``setup_vm_final()`` creates the final kernel mapping in ``swapper_pg_dir``
130 mapping. When establishing this mapping, the kernel can allocate memory but
131 cannot access it directly (since the direct mapping is not present yet), so
136 direct mapping addresses to physical addresses, they need to know the start of
[all …]
|
| /linux/drivers/net/wireless/marvell/mwifiex/ |
| H A D | util.h | 57 struct mwifiex_dma_mapping *mapping) in mwifiex_store_mapping() argument
61 memcpy(&cb->dma_mapping, mapping, sizeof(*mapping)); in mwifiex_store_mapping()
65 struct mwifiex_dma_mapping *mapping) in mwifiex_get_mapping() argument
69 memcpy(mapping, &cb->dma_mapping, sizeof(*mapping)); in mwifiex_get_mapping()
74 struct mwifiex_dma_mapping mapping; in MWIFIEX_SKB_DMA_ADDR() local
76 mwifiex_get_mapping(skb, &mapping); in MWIFIEX_SKB_DMA_ADDR()
78 return mapping.addr; in MWIFIEX_SKB_DMA_ADDR()
|
| /linux/drivers/pci/controller/ |
| H A D | pcie-iproc.h | 33 * struct iproc_pcie_ob - iProc PCIe outbound mapping
36 * @nr_windows: total number of supported outbound mapping windows
44 * struct iproc_pcie_ib - iProc PCIe inbound mapping
45 * @nr_regions: total number of supported inbound mapping regions
73 * @need_ob_cfg: indicates SW needs to configure the outbound mapping window
74 * @ob: outbound mapping related parameters
75 * @ob_map: outbound mapping related parameters specific to the controller
77 * @need_ib_cfg: indicates SW needs to configure the inbound mapping window
78 * @ib: inbound mapping related parameters
79 * @ib_map: outbound mapping region related parameters
|
| /linux/include/trace/events/ |
| H A D | page_ref.h | 24 __field(void *, mapping)
34 __entry->mapping = page->mapping;
39 TP_printk("pfn=0x%lx flags=%s count=%d mapcount=%d mapping=%p mt=%d val=%d",
43 __entry->mapcount, __entry->mapping, __entry->mt,
72 __field(void *, mapping)
83 __entry->mapping = page->mapping;
89 TP_printk("pfn=0x%lx flags=%s count=%d mapcount=%d mapping=%p mt=%d val=%d ret=%d",
93 __entry->mapcount, __entry->mapping, __entry->mt,
|
| /linux/arch/nios2/include/asm/ |
| H A D | cacheflush.h | 54 #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) argument
55 #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) argument
56 #define flush_dcache_mmap_lock_irqsave(mapping, flags) \ argument
57 xa_lock_irqsave(&mapping->i_pages, flags)
58 #define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ argument
59 xa_unlock_irqrestore(&mapping->i_pages, flags)
|
| /linux/arch/powerpc/boot/dts/fsl/ |
| H A D | t4240si-pre.dtsi | 95 fsl,portid-mapping = <0x80000000>;
102 fsl,portid-mapping = <0x80000000>;
109 fsl,portid-mapping = <0x80000000>;
116 fsl,portid-mapping = <0x80000000>;
123 fsl,portid-mapping = <0x40000000>;
130 fsl,portid-mapping = <0x40000000>;
137 fsl,portid-mapping = <0x40000000>;
144 fsl,portid-mapping = <0x40000000>;
151 fsl,portid-mapping = <0x20000000>;
158 fsl,portid-mapping = <0x20000000>;
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| /linux/fs/ntfs/ |
| H A D | aops.c | 25 struct ntfs_inode *ni = NTFS_I(folio->mapping->host); in ntfs_iomap_read_end_io()
70 struct ntfs_inode *ni = NTFS_I(folio->mapping->host); in ntfs_read_folio()
112 * @mapping: address space mapping to which the block to be mapped belongs
117 * mapping @mapping to its physical device block.
125 * Return the physical device block if the mapping succeeded or 0 if the block
133 static sector_t ntfs_bmap(struct address_space *mapping, sector_t block) in ntfs_bmap() argument
139 struct ntfs_inode *ni = NTFS_I(mapping->host); in ntfs_bmap()
193 "Not enough memory to complete mapping for inode 0x%llx. Returning 0.", in ntfs_bmap()
198 "Failed to complete mapping for inode 0x%llx. Run chkdsk. Returning 0.", in ntfs_bmap()
234 struct address_space *mapping = rac->mapping; in ntfs_readahead() local
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| /linux/fs/xfs/ |
| H A D | xfs_aops.c | 81 * out. If we don't, we can leave a stale delalloc mapping covered by a clean
82 * page that needs to be dirtied again before the delalloc mapping can be
83 * converted. This stale delalloc mapping can trip up a later direct I/O read
97 struct xfs_inode *ip = XFS_I(folio->mapping->host); in xfs_discard_folio()
117 * Fast revalidation of the cached writeback mapping. Return true if the current
118 * mapping is valid, false otherwise.
130 * If this is a COW mapping, it is sufficient to check that the mapping in xfs_imap_valid()
132 * can revalidate a COW mapping without updating the data seqno. in xfs_imap_valid()
138 * This is not a COW mapping. Check the sequence number of the data fork in xfs_imap_valid()
185 * check for overlap on reflink inodes unless the mapping is already a in xfs_map_blocks()
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| /linux/drivers/net/ethernet/broadcom/bnxt/ |
| H A D | bnxt_xdp.c | 28 dma_addr_t mapping, u32 len, in bnxt_xmit_bd() argument
56 txbd->tx_bd_haddr = cpu_to_le64(mapping); in bnxt_xmit_bd()
96 dma_addr_t mapping, u32 len, u16 rx_prod, in __bnxt_xmit_xdp() argument
101 tx_buf = bnxt_xmit_bd(bp, txr, mapping, len, xdp); in __bnxt_xmit_xdp()
109 dma_addr_t mapping, u32 len, in __bnxt_xmit_xdp_redirect() argument
114 tx_buf = bnxt_xmit_bd(bp, txr, mapping, len, NULL); in __bnxt_xmit_xdp_redirect()
117 dma_unmap_addr_set(tx_buf, mapping, mapping); in __bnxt_xmit_xdp_redirect()
142 dma_unmap_addr(tx_buf, mapping), in bnxt_tx_int_xdp()
189 dma_addr_t mapping; in bnxt_xdp_buff_init() local
196 mapping = rx_buf->mapping - bp->rx_dma_offset; in bnxt_xdp_buff_init()
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| /linux/Documentation/arch/arm/ |
| H A D | memory.rst | 26 setup a minicache mapping.
42 fffe8000 fffeffff DTCM mapping area for platforms with
45 fffe0000 fffe7fff ITCM mapping area for platforms with
48 ffc80000 ffefffff Fixmap mapping region. Addresses provided
53 ff800000 ffbfffff Permanent, fixed read-only mapping of the
56 fee00000 feffffff Mapping of PCI I/O space. This is a static
57 mapping within the vmalloc space.
73 One way of mapping HIGHMEM pages into kernel
93 space are also caught via this mapping.
100 Since future CPUs may impact the kernel mapping layout, user programs
|