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Searched refs:mappings (Results 1 – 25 of 211) sorted by relevance

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/linux-6.3-rc2/drivers/gpu/drm/panfrost/
A Dpanfrost_gem.c36 WARN_ON_ONCE(!list_empty(&bo->mappings.list)); in panfrost_gem_free_object()
61 mutex_lock(&bo->mappings.lock); in panfrost_gem_mapping_get()
62 list_for_each_entry(iter, &bo->mappings.list, node) { in panfrost_gem_mapping_get()
69 mutex_unlock(&bo->mappings.lock); in panfrost_gem_mapping_get()
158 mutex_lock(&bo->mappings.lock); in panfrost_gem_open()
160 list_add_tail(&mapping->node, &bo->mappings.list); in panfrost_gem_open()
161 mutex_unlock(&bo->mappings.lock); in panfrost_gem_open()
175 mutex_lock(&bo->mappings.lock); in panfrost_gem_close()
183 mutex_unlock(&bo->mappings.lock); in panfrost_gem_close()
229 INIT_LIST_HEAD(&obj->mappings.list); in panfrost_gem_create_object()
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A Dpanfrost_drv.c156 job->mappings = kvmalloc_array(job->bo_count, in panfrost_lookup_bos()
159 if (!job->mappings) in panfrost_lookup_bos()
173 job->mappings[i] = mapping; in panfrost_lookup_bos()
418 mutex_lock(&bo->mappings.lock); in panfrost_ioctl_madvise()
422 first = list_first_entry(&bo->mappings.list, in panfrost_ioctl_madvise()
434 if (!list_is_singular(&bo->mappings.list) || in panfrost_ioctl_madvise()
452 mutex_unlock(&bo->mappings.lock); in panfrost_ioctl_madvise()
A Dpanfrost_gem_shrinker.c48 if (!mutex_trylock(&bo->mappings.lock)) in panfrost_gem_purge()
61 mutex_unlock(&bo->mappings.lock); in panfrost_gem_purge()
/linux-6.3-rc2/Documentation/mm/
A Dhighmem.rst15 at all times. This means the kernel needs to start using temporary mappings of
54 * kmap_local_page(). This function is used to require short term mappings.
55 It can be invoked from any context (including interrupts) but the mappings
61 These mappings are thread-local and CPU-local, meaning that the mapping
86 mappings, the local mappings are only valid in the context of the caller
91 Most code can be designed to use thread local mappings. User should
100 mappings.
116 finished, lest some other task displace its mappings.
149 long time but the bulk of high-memory mappings in the kernel are
152 term mappings but it has morphed in that direction and its use is
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A Dhugetlbfs_reserv.rst87 of mappings. Location differences are:
89 - For private mappings, the reservation map hangs off the VMA structure.
93 inode->i_mapping->private_data. Since shared mappings are always backed
121 One of the big differences between PRIVATE and SHARED mappings is the way
138 are needed for the current mapping/segment. For private mappings, this is
168 mappings, no modifications are made to the reservation map as lack of an
242 map. For shared mappings where the reservation was present, an entry
265 to the page cache and pages in private mappings are added to an anonymous
337 biggest reservation concern for COW is private mappings. In this case,
464 shared mappings and hide this detail from the caller::
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/linux-6.3-rc2/Documentation/arm/
A Dmemory.rst62 Machine specific static mappings are also
72 PKMAP_BASE PAGE_OFFSET-1 Permanent kernel mappings
78 placed here using dynamic mappings.
85 00001000 TASK_SIZE-1 User space mappings
86 Per-thread mappings are placed here via
96 Please note that mappings which collide with the above areas may result
103 must set up their own mappings using open() and mmap().
/linux-6.3-rc2/drivers/gpu/drm/tegra/
A Dsubmit.c150 xa_lock(&context->mappings); in tegra_drm_mapping_get()
152 mapping = xa_load(&context->mappings, id); in tegra_drm_mapping_get()
156 xa_unlock(&context->mappings); in tegra_drm_mapping_get()
261 struct tegra_drm_used_mapping *mappings; in submit_process_bufs() local
273 mappings = kcalloc(args->num_bufs, sizeof(*mappings), GFP_KERNEL); in submit_process_bufs()
274 if (!mappings) { in submit_process_bufs()
303 mappings[i].mapping = mapping; in submit_process_bufs()
304 mappings[i].flags = buf->flags; in submit_process_bufs()
307 job_data->used_mappings = mappings; in submit_process_bufs()
316 tegra_drm_mapping_put(mappings[i].mapping); in submit_process_bufs()
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A Duapi.c39 xa_for_each(&context->mappings, id, mapping) in tegra_drm_channel_context_close()
42 xa_destroy(&context->mappings); in tegra_drm_channel_context_close()
141 xa_init_flags(&context->mappings, XA_FLAGS_ALLOC1); in tegra_drm_ioctl_channel_open()
252 err = xa_alloc(&context->mappings, &args->mapping, mapping, XA_LIMIT(1, U32_MAX), in tegra_drm_ioctl_channel_map()
287 mapping = xa_erase(&context->mappings, args->mapping); in tegra_drm_ioctl_channel_unmap()
/linux-6.3-rc2/Documentation/ia64/
A Daliasing.rst67 Linux/ia64 identity mappings are done with large pages, currently
68 either 16MB or 64MB, referred to as "granules." Cacheable mappings
78 Uncacheable mappings are not speculative, so the processor will
80 software. This allows UC identity mappings to cover granules that
94 There are several ways the kernel creates new mappings:
99 This uses remap_pfn_range(), which creates user mappings. These
100 mappings may be either WB or UC. If the region being mapped
167 region safely with kernel page table mappings, we can use
182 succeed. It may create either WB or UC user mappings, depending
197 so it is safe to use WB mappings.
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/linux-6.3-rc2/Documentation/driver-api/
A Dio-mapping.rst44 used with mappings created by io_mapping_create_wc()
46 Temporary mappings are only valid in the context of the caller. The mapping
56 Nested mappings need to be undone in reverse order because the mapping
65 The mappings are released with::
83 The mappings are released with::
/linux-6.3-rc2/drivers/soc/aspeed/
A DKconfig13 Control LPC firmware cycle mappings through ioctl()s. The driver
43 Control ASPEED P2A VGA MMIO to BMC mappings through ioctl()s. The
44 driver also provides an interface for userspace mappings to a
/linux-6.3-rc2/drivers/regulator/
A Drpi-panel-attiny-regulator.c59 static const struct gpio_signal_mappings mappings[NUM_GPIO] = { variable
225 last_val = attiny_get_port_state(state, mappings[off].reg); in attiny_gpio_set()
227 last_val |= mappings[off].mask; in attiny_gpio_set()
229 last_val &= ~mappings[off].mask; in attiny_gpio_set()
231 attiny_set_port_state(state, mappings[off].reg, last_val); in attiny_gpio_set()
/linux-6.3-rc2/Documentation/admin-guide/mm/
A Dnommu-mmap.rst29 These behave very much like private mappings, except that they're
133 In the no-MMU case, however, anonymous mappings are backed by physical
147 (#) A list of all the private copy and anonymous mappings on the system is
150 (#) A list of all the mappings in use by a process is visible through
176 mappings made by a process or if the mapping in which the address lies does not
191 Shared mappings may not be moved. Shareable mappings may not be moved either,
196 mappings, move parts of existing mappings or resize parts of mappings. It must
243 mappings may still be mapped directly off the device under some
250 Provision of shared mappings on memory backed files is similar to the provision
253 of pages and permit mappings to be made on that.
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/linux-6.3-rc2/Documentation/devicetree/bindings/
A D.yamllint31 forbid-in-block-mappings: true
32 forbid-in-flow-mappings: true
/linux-6.3-rc2/Documentation/devicetree/bindings/iommu/
A Dxen,grant-dma.yaml13 The Xen IOMMU represents the Xen grant table interface. Grant mappings
16 The binding is required to restrict memory access using Xen grant mappings.
/linux-6.3-rc2/drivers/cxl/
A Dpmem.c307 struct nd_mapping_desc mappings[CXL_DECODER_MAX_INTERLEAVE]; in cxl_pmem_region_probe() local
319 memset(&mappings, 0, sizeof(mappings)); in cxl_pmem_region_probe()
378 mappings[i] = (struct nd_mapping_desc) { in cxl_pmem_region_probe()
388 ndr_desc.mapping = mappings; in cxl_pmem_region_probe()
/linux-6.3-rc2/Documentation/ABI/testing/
A Dsysfs-firmware-efi-runtime-map10 the same physical to virtual address mappings as the first
11 kernel. The mappings are exported to sysfs so userspace tools
/linux-6.3-rc2/Documentation/arm64/
A Dhugetlbpage.rst15 1) Block mappings at the pud/pmd level
20 mappings reduce the depth of page table walk needed to translate hugepage
A Dmemory.rst24 mappings while the user pgd contains only user (non-global) mappings.
38 fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
55 fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
101 mappings are created, since the host kernel runs directly in EL2.
/linux-6.3-rc2/include/linux/
A Dhost1x.h42 struct list_head mappings; member
48 INIT_LIST_HEAD(&cache->mappings); in host1x_bo_cache_init()
153 struct list_head mappings; member
160 INIT_LIST_HEAD(&bo->mappings); in host1x_bo_init()
/linux-6.3-rc2/mm/
A DKconfig.debug99 bool "Check for invalid mappings in user page tables"
162 bool "Warn on W+X mappings at boot"
167 Generate a warning if any W+X mappings are found at boot.
170 mappings after applying NX, as such mappings are a security risk.
174 <arch>/mm: Checked W+X mappings: passed, no W+X pages found.
178 <arch>/mm: Checked W+X mappings: failed, <N> W+X pages found.
181 still fine, as W+X mappings are not a security hole in
/linux-6.3-rc2/tools/testing/nvdimm/test/
A Dndtest.c408 struct nd_mapping_desc mappings[NDTEST_MAX_MAPPING]; in ndtest_create_region() local
416 memset(&mappings, 0, sizeof(mappings)); in ndtest_create_region()
424 ndr_desc->mapping = mappings; in ndtest_create_region()
445 mappings[i].start = region->mapping[i].start; in ndtest_create_region()
446 mappings[i].size = region->mapping[i].size; in ndtest_create_region()
447 mappings[i].position = region->mapping[i].position; in ndtest_create_region()
448 mappings[i].nvdimm = p->config->dimms[ndimm].nvdimm; in ndtest_create_region()
/linux-6.3-rc2/Documentation/driver-api/usb/
A Ddma.rst19 manage dma mappings for existing dma-ready buffers (see below).
27 don't manage dma mappings for URBs.
41 IOMMU to manage the DMA mappings. It can cost MUCH more to set up and
42 tear down the IOMMU mappings with each request than perform the I/O!
64 "streaming" DMA mappings.)
/linux-6.3-rc2/Documentation/gpu/rfc/
A Di915_vm_bind.rst9 specified address space (VM). These mappings (also referred to as persistent
10 mappings) will be persistent across multiple GPU submissions (execbuf calls)
12 mappings during each submission (as required by older execbuf mode).
27 * Multiple Virtual Address (VA) mappings can map to the same physical pages
30 * Support capture of persistent mappings in the dump upon GPU error.
90 path (where required mappings are already bound) submission latency is O(1)
201 execbuf. VM_BIND allows bind/unbind of mappings required for the directly
231 mapped objects. Page table pages are similar to persistent mappings of a
/linux-6.3-rc2/Documentation/riscv/
A Dvm-layout.rst44 … | | | | starting offset of kernel mappings.
80 | | | | starting offset of kernel mappings.
116 | | | | starting offset of kernel mappings.

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