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/Linux-v6.1/mm/damon/
Dvaddr-test.h37 * discontiguous regions which cover every mapped areas. However, the three
38 * regions should not include the two biggest unmapped areas in the original
40 * heap and the mmap()-ed regions, and 2) the mmap()-ed regions and stack.
47 * three regions and returns. For more detail, refer to the comment of
53 * mapped. To cover every mappings, the three regions should start with 10,
56 * unmapped areas, and thus it should be converted to three regions of 10-25,
62 struct damon_addr_range regions[3] = {0,}; in damon_test_three_regions_in_vmas() local
76 __damon_va_three_regions(&mm, regions); in damon_test_three_regions_in_vmas()
78 KUNIT_EXPECT_EQ(test, 10ul, regions[0].start); in damon_test_three_regions_in_vmas()
79 KUNIT_EXPECT_EQ(test, 25ul, regions[0].end); in damon_test_three_regions_in_vmas()
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Dvaddr.c56 * Functions for the initial monitoring target regions construction
60 * Size-evenly split a region into 'nr_pieces' small regions
104 * Find three regions separated by two biggest unmapped regions
107 * regions an array of three address ranges that results will be saved
109 * This function receives an address space and finds three regions in it which
110 * separated by the two biggest unmapped regions in the space. Please refer to
117 struct damon_addr_range regions[3]) in __damon_va_three_regions()
158 regions[0].start = ALIGN(start, DAMON_MIN_REGION); in __damon_va_three_regions()
159 regions[0].end = ALIGN(first_gap.start, DAMON_MIN_REGION); in __damon_va_three_regions()
160 regions[1].start = ALIGN(first_gap.end, DAMON_MIN_REGION); in __damon_va_three_regions()
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/Linux-v6.1/arch/powerpc/mm/nohash/
Dkaslr_booke.c24 struct regions { struct
39 struct regions __initdata regions; argument
114 if (regions.reserved_mem < 0) in overlaps_reserved_region()
118 for (subnode = fdt_first_subnode(fdt, regions.reserved_mem); in overlaps_reserved_region()
126 while (len >= (regions.reserved_mem_addr_cells + in overlaps_reserved_region()
127 regions.reserved_mem_size_cells)) { in overlaps_reserved_region()
129 if (regions.reserved_mem_addr_cells == 2) in overlaps_reserved_region()
132 reg += regions.reserved_mem_addr_cells; in overlaps_reserved_region()
133 len -= 4 * regions.reserved_mem_addr_cells; in overlaps_reserved_region()
136 if (regions.reserved_mem_size_cells == 2) in overlaps_reserved_region()
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/Linux-v6.1/drivers/mtd/chips/
Djedec_probe.c274 const uint32_t regions[6]; member
306 .regions = {
318 .regions = {
333 .regions = {
348 .regions = {
363 .regions = {
378 .regions = {
394 .regions = {
411 .regions = {
428 .regions = {
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/Linux-v6.1/Documentation/admin-guide/device-mapper/
Ddm-clone.rst58 3. A small metadata device - it records which regions are already valid in the
59 destination device, i.e., which regions have already been hydrated, or have
65 Regions section in Design
68 dm-clone divides the source and destination devices in fixed sized regions.
69 Regions are the unit of hydration, i.e., the minimum amount of data copied from
77 Reads and writes from/to hydrated regions are serviced from the destination
93 as a hint to skip hydration of the regions covered by the request, i.e., it
111 A message `hydration_threshold <#regions>` can be used to set the maximum number
112 of regions being copied, the default being 1 region.
116 region size. A message `hydration_batch_size <#regions>` can be used to tune the
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/Linux-v6.1/Documentation/networking/devlink/
Ddevlink-region.rst7 ``devlink`` regions enable access to driver defined address regions using
10 Each device can create and register its own supported address regions. The
15 Regions may optionally support triggering snapshots on demand.
22 address regions that are otherwise inaccessible to the user.
24 Regions may also be used to provide an additional way to debug complex error
27 Regions may optionally support capturing a snapshot on demand via the
45 # Show all of the exposed regions with region sizes:
68 As regions are likely very device or driver specific, no generic regions are
70 specific regions a driver supports.
/Linux-v6.1/mm/
Dmemblock.c39 * Memblock is a method of managing memory regions during the early
44 * regions. There are several types of these collections:
50 * * ``reserved`` - describes the regions that were allocated
58 * which contains an array of memory regions along with
66 * arrays during addition of new regions. This feature should be used
116 .memory.regions = memblock_memory_init_regions,
121 .reserved.regions = memblock_reserved_init_regions,
132 .regions = memblock_physmem_init_regions,
148 for (i = 0, rgn = &memblock_type->regions[0]; \
150 i++, rgn = &memblock_type->regions[i])
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/Linux-v6.1/drivers/vfio/platform/
Dvfio_platform_common.c145 vdev->regions = kcalloc(cnt, sizeof(struct vfio_platform_region), in vfio_platform_regions_init()
147 if (!vdev->regions) in vfio_platform_regions_init()
157 vdev->regions[i].addr = res->start; in vfio_platform_regions_init()
158 vdev->regions[i].size = resource_size(res); in vfio_platform_regions_init()
159 vdev->regions[i].flags = 0; in vfio_platform_regions_init()
163 vdev->regions[i].type = VFIO_PLATFORM_REGION_TYPE_MMIO; in vfio_platform_regions_init()
164 vdev->regions[i].flags |= VFIO_REGION_INFO_FLAG_READ; in vfio_platform_regions_init()
166 vdev->regions[i].flags |= in vfio_platform_regions_init()
170 * Only regions addressed with PAGE granularity may be in vfio_platform_regions_init()
173 if (!(vdev->regions[i].addr & ~PAGE_MASK) && in vfio_platform_regions_init()
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/Linux-v6.1/drivers/gpu/drm/nouveau/nvkm/nvfw/
Dacr.c89 hdr->regions.no_regions); in flcn_acr_desc_dump()
91 for (i = 0; i < ARRAY_SIZE(hdr->regions.region_props); i++) { in flcn_acr_desc_dump()
94 hdr->regions.region_props[i].start_addr); in flcn_acr_desc_dump()
96 hdr->regions.region_props[i].end_addr); in flcn_acr_desc_dump()
98 hdr->regions.region_props[i].region_id); in flcn_acr_desc_dump()
100 hdr->regions.region_props[i].read_mask); in flcn_acr_desc_dump()
102 hdr->regions.region_props[i].write_mask); in flcn_acr_desc_dump()
104 hdr->regions.region_props[i].client_mask); in flcn_acr_desc_dump()
132 hdr->regions.no_regions); in flcn_acr_desc_v1_dump()
134 for (i = 0; i < ARRAY_SIZE(hdr->regions.region_props); i++) { in flcn_acr_desc_v1_dump()
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/Linux-v6.1/drivers/virt/nitro_enclaves/
Dne_misc_dev_test.c23 * regions = {}
34 * regions = {}
45 * regions = {
58 * regions = {
72 * regions = {
87 * regions = {
102 * regions = {
117 phys_contig_mem_regions.regions = kunit_kcalloc(test, MAX_PHYS_REGIONS, in ne_misc_dev_test_merge_phys_contig_memory_regions()
118 sizeof(*phys_contig_mem_regions.regions), in ne_misc_dev_test_merge_phys_contig_memory_regions()
120 KUNIT_ASSERT_TRUE(test, phys_contig_mem_regions.regions); in ne_misc_dev_test_merge_phys_contig_memory_regions()
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/Linux-v6.1/include/linux/
Ddamon.h47 * regions are merged into a new region, both @nr_accesses and @age of the new
48 * region are set as region size-weighted average of those of the two regions.
64 * @nr_regions: Number of monitoring target regions of this target.
65 * @regions_list: Head of the monitoring target regions of this target.
128 * For selecting regions within the quota, DAMON prioritizes current scheme's
129 * target memory regions using the &struct damon_operations->get_scheme_score.
184 * appropriate memory regions. Else, DAMON checks &metric of the system for at
204 * @nr_tried: Total number of regions that the scheme is tried to be applied.
205 * @sz_tried: Total size of regions that the scheme is tried to be applied.
206 * @nr_applied: Total number of regions that the scheme is applied.
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/Linux-v6.1/Documentation/admin-guide/mm/damon/
Dlru_sort.rst31 DAMON_LRU_SORT finds hot pages (pages of memory regions that showing access
33 memory regions that showing no access for a time that longer than a
85 Access frequency threshold for hot memory regions identification in permil.
94 Time threshold for cold memory regions identification in microseconds.
179 Minimum number of monitoring regions.
181 The minimal number of monitoring regions of DAMON for the cold memory
190 Maximum number of monitoring regions.
192 The maximum number of monitoring regions of DAMON for the cold memory
225 Number of hot memory regions that tried to be LRU-sorted.
230 Total bytes of hot memory regions that tried to be LRU-sorted.
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Dusage.rst77 │ │ │ │ │ │ │ regions/nr_regions
161 Please refer to :ref:`regions sysfs directory <sysfs_regions>` for detailed
163 regions.
183 of DAMON's monitoring regions (``min`` and ``max``, respectively), which
187 For more details about the intervals and monitoring regions range, please refer
201 (``regions``) exist.
209 targets/<N>/regions
214 monitoring target regions so that entire memory mappings of target processes
219 regions when ``fvaddr`` or ``paddr`` monitoring operations sets are being used
221 Therefore, users should set the monitoring target regions by themselves in the
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Dreclaim.rst33 DAMON_RECLAIM finds memory regions that didn't accessed for specific time
36 out memory regions that didn't accessed longer time first. System
77 Time threshold for cold memory regions identification in microseconds.
173 Minimum number of monitoring regions.
175 The minimal number of monitoring regions of DAMON for the cold memory
183 Maximum number of monitoring regions.
185 The maximum number of monitoring regions of DAMON for the cold memory
196 against. That is, DAMON_RECLAIM will find cold memory regions in this region
205 against. That is, DAMON_RECLAIM will find cold memory regions in this region
219 Number of memory regions that tried to be reclaimed by DAMON_RECLAIM.
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/Linux-v6.1/Documentation/mm/damon/
Ddesign.rst51 address regions is just wasteful. However, because DAMON can deal with some
52 level of noise using the adaptive regions adjustment mechanism, tracking every
58 distinct regions that cover every mapped area of the address space. The two
59 gaps between the three regions are the two biggest unmapped areas in the given
69 (small mmap()-ed regions and munmap()-ed regions)
98 ``update interval``, ``minimum number of regions``, and ``maximum number of
99 regions``.
139 overhead is controllable by setting the number of regions. DAMON allows users
140 to set the minimum and the maximum number of regions for the trade-off.
146 Adaptive Regions Adjustment
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/Linux-v6.1/tools/testing/memblock/tests/
Dbasic_api.c17 ASSERT_NE(memblock.memory.regions, NULL); in memblock_initialization_check()
22 ASSERT_NE(memblock.reserved.regions, NULL); in memblock_initialization_check()
37 * and size to the collection of available memory regions (memblock.memory).
45 rgn = &memblock.memory.regions[0]; in memblock_add_simple_check()
70 * NUMA node and memory flags to the collection of available memory regions.
78 rgn = &memblock.memory.regions[0]; in memblock_add_node_simple_check()
114 * available memory regions (memblock.memory). The total size and
121 rgn1 = &memblock.memory.regions[0]; in memblock_add_disjoint_check()
122 rgn2 = &memblock.memory.regions[1]; in memblock_add_disjoint_check()
167 * and has size of two regions minus their intersection. The total size of
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Dalloc_nid_api.c55 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_top_down_simple_check()
107 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_top_down_end_misaligned_check()
158 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_exact_address_generic_check()
210 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_top_down_narrow_range_check()
296 * Expect a merge of both regions. Only the region size gets updated.
300 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_min_reserved_generic_check()
348 * Expect a merge of regions. Only the region size gets updated.
352 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_try_nid_max_reserved_generic_check()
388 * there are two reserved regions at the borders, with a gap big enough to fit
405 struct memblock_region *rgn1 = &memblock.reserved.regions[1]; in alloc_try_nid_top_down_reserved_with_space_check()
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Dalloc_api.c26 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_top_down_simple_check()
73 struct memblock_region *rgn1 = &memblock.reserved.regions[1]; in alloc_top_down_disjoint_check()
74 struct memblock_region *rgn2 = &memblock.reserved.regions[0]; in alloc_top_down_disjoint_check()
121 * Expect a merge of both regions. Only the region size gets updated.
125 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_top_down_before_check()
163 * Expect a merge of both regions. Both the base address and size of the region
168 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_top_down_after_check()
204 * A test that tries to allocate memory when there are two reserved regions with
217 struct memblock_region *rgn = &memblock.reserved.regions[0]; in alloc_top_down_second_fit_check()
254 * A test that tries to allocate memory when there are two reserved regions with
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/Linux-v6.1/drivers/vfio/fsl-mc/
Dvfio_fsl_mc.c30 vdev->regions = kcalloc(count, sizeof(struct vfio_fsl_mc_region), in vfio_fsl_mc_open_device()
32 if (!vdev->regions) in vfio_fsl_mc_open_device()
36 struct resource *res = &mc_dev->regions[i]; in vfio_fsl_mc_open_device()
39 vdev->regions[i].addr = res->start; in vfio_fsl_mc_open_device()
40 vdev->regions[i].size = resource_size(res); in vfio_fsl_mc_open_device()
41 vdev->regions[i].type = mc_dev->regions[i].flags & IORESOURCE_BITS; in vfio_fsl_mc_open_device()
43 * Only regions addressed with PAGE granularity may be in vfio_fsl_mc_open_device()
46 if (!no_mmap && !(vdev->regions[i].addr & ~PAGE_MASK) && in vfio_fsl_mc_open_device()
47 !(vdev->regions[i].size & ~PAGE_MASK)) in vfio_fsl_mc_open_device()
48 vdev->regions[i].flags |= in vfio_fsl_mc_open_device()
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/Linux-v6.1/drivers/net/dsa/sja1105/
Dsja1105_devlink.c7 /* Since devlink regions have a fixed size and the static config has a variable
85 priv->regions = kcalloc(num_regions, sizeof(struct devlink_region *), in sja1105_setup_devlink_regions()
87 if (!priv->regions) in sja1105_setup_devlink_regions()
97 dsa_devlink_region_destroy(priv->regions[i]); in sja1105_setup_devlink_regions()
99 kfree(priv->regions); in sja1105_setup_devlink_regions()
103 priv->regions[i] = region; in sja1105_setup_devlink_regions()
115 dsa_devlink_region_destroy(priv->regions[i]); in sja1105_teardown_devlink_regions()
117 kfree(priv->regions); in sja1105_teardown_devlink_regions()
/Linux-v6.1/Documentation/ABI/testing/
Dsysfs-kernel-mm-damon89 monitoring regions of the DAMON context as the value. Reading
96 monitoring regions of the DAMON context as the value. Reading
113 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/nr_regions
118 context named '0' to 'N-1' under the regions/ directory. In
123 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/start
129 What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/end
152 size of the scheme's target regions in bytes.
158 size of the scheme's target regions in bytes.
164 'nr_accesses' of the scheme's target regions.
170 'nr_accesses' of the scheme's target regions.
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/Linux-v6.1/drivers/perf/
Dmarvell_cn10k_tad_pmu.c32 struct tad_region *regions; member
53 new += readq(tad_pmu->regions[i].base + in tad_pmu_event_counter_read()
71 writeq_relaxed(0, tad_pmu->regions[i].base + in tad_pmu_event_counter_stop()
92 writeq_relaxed(0, tad_pmu->regions[i].base + in tad_pmu_event_counter_start()
100 writeq_relaxed(reg_val, tad_pmu->regions[i].base + in tad_pmu_event_counter_start()
258 struct tad_region *regions; in tad_pmu_probe() local
299 regions = devm_kcalloc(&pdev->dev, tad_cnt, in tad_pmu_probe()
300 sizeof(*regions), GFP_KERNEL); in tad_pmu_probe()
301 if (!regions) in tad_pmu_probe()
304 /* ioremap the distributed TAD pmu regions */ in tad_pmu_probe()
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/Linux-v6.1/drivers/net/ipa/
Dipa_mem.c23 /* "Canary" value placed between memory regions to detect overflow */
61 * Set up the shared memory regions in IPA local memory. This involves
62 * zero-filling memory regions, and in the case of header memory, telling
66 * crashes, its regions are re-zeroed in ipa_mem_zero_modem().
86 * the processing context and modem memory regions. in ipa_mem_setup()
247 DECLARE_BITMAP(regions, IPA_MEM_COUNT) = { }; in ipa_mem_valid()
253 dev_err(dev, "too many memory regions (%u > %u)\n", in ipa_mem_valid()
261 if (__test_and_set_bit(mem->id, regions)) { in ipa_mem_valid()
266 /* Defined regions have non-zero size and/or canary count */ in ipa_mem_valid()
271 /* Now see if any required regions are not defined */ in ipa_mem_valid()
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/Linux-v6.1/drivers/soc/qcom/
Dsmem.c42 * the partition and holds properties for the two internal memory regions. The
43 * two regions are cached and non-cached memory respectively. Each region
272 * @num_regions: number of @regions
273 * @regions: list of the memory regions defining the shared memory
287 struct smem_region regions[]; member
430 header = smem->regions[0].virt_base; in qcom_smem_alloc_global()
517 header = smem->regions[0].virt_base; in qcom_smem_get_global()
525 region = &smem->regions[i]; in qcom_smem_get_global()
713 header = __smem->regions[0].virt_base; in qcom_smem_get_free_space()
716 if (ret > __smem->regions[0].size) in qcom_smem_get_free_space()
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/Linux-v6.1/Documentation/devicetree/bindings/fpga/
Dfpga-region.txt18 FPGA Regions represent FPGA's and partial reconfiguration regions of FPGA's in
19 the Device Tree. FPGA Regions provide a way to program FPGAs under device tree
55 * A persona may create more regions.
65 will be used to gate the busses. Traffic to other regions is not affected.
69 * An FPGA image may create a set of reprogrammable regions, each having its
79 * A base image may set up a set of partial reconfiguration regions that may
99 Figure 1: An FPGA set up with a base image that created three regions. Each
124 FPGA Regions represent FPGA's and FPGA PR regions in the device tree. An FPGA
151 These FPGA regions are children of FPGA bridges which are then children of the
160 FPGA Regions do not inherit their ancestor FPGA regions' bridges. This prevents
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