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/linux/drivers/fpga/
H A Ddfl-afu-dma-region.c3 * Driver for FPGA Accelerated Function Unit (AFU) DMA Region Management
27 * afu_dma_pin_pages - pin pages of given dma memory region
29 * @region: dma memory region to be pinned
35 struct dfl_afu_dma_region *region) in afu_dma_pin_pages() argument
37 int npages = region->length >> PAGE_SHIFT; in afu_dma_pin_pages()
45 region->pages = kcalloc(npages, sizeof(struct page *), GFP_KERNEL); in afu_dma_pin_pages()
46 if (!region->pages) { in afu_dma_pin_pages()
51 pinned = pin_user_pages_fast(region->user_addr, npages, FOLL_WRITE, in afu_dma_pin_pages()
52 region in afu_dma_pin_pages()
83 afu_dma_unpin_pages(struct dfl_feature_platform_data * pdata,struct dfl_afu_dma_region * region) afu_dma_unpin_pages() argument
102 afu_dma_check_continuous_pages(struct dfl_afu_dma_region * region) afu_dma_check_continuous_pages() argument
124 dma_region_check_iova(struct dfl_afu_dma_region * region,u64 iova,u64 size) dma_region_check_iova() argument
144 afu_dma_region_add(struct dfl_feature_platform_data * pdata,struct dfl_afu_dma_region * region) afu_dma_region_add() argument
186 afu_dma_region_remove(struct dfl_feature_platform_data * pdata,struct dfl_afu_dma_region * region) afu_dma_region_remove() argument
207 struct dfl_afu_dma_region *region; afu_dma_region_destroy() local
252 struct dfl_afu_dma_region *region; afu_dma_region_find() local
304 struct dfl_afu_dma_region *region; afu_dma_map_region() local
382 struct dfl_afu_dma_region *region; afu_dma_unmap_region() local
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H A Ddfl-afu-region.c3 * Driver for FPGA Accelerated Function Unit (AFU) MMIO Region Management
14 * afu_mmio_region_init - init function for afu mmio region support
24 #define for_each_region(region, afu) \ argument
25 list_for_each_entry((region), &(afu)->regions, node)
30 struct dfl_afu_mmio_region *region; in get_region_by_index() local
32 for_each_region(region, afu) in get_region_by_index()
33 if (region->index == region_index) in get_region_by_index()
34 return region; in get_region_by_index()
40 * afu_mmio_region_add - add a mmio region to given feature dev.
43 * @region_index: region inde
53 struct dfl_afu_mmio_region *region; afu_mmio_region_add() local
99 struct dfl_afu_mmio_region *tmp, *region; afu_mmio_region_destroy() local
117 struct dfl_afu_mmio_region *region; afu_mmio_region_get_by_index() local
151 struct dfl_afu_mmio_region *region; afu_mmio_region_get_by_offset() local
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H A Ddfl-fme-pr.c25 #include <linux/fpga/fpga-region.h>
52 struct fpga_region *region; in dfl_fme_region_find() local
58 region = fpga_region_class_find(NULL, &fme_region->region->dev, in dfl_fme_region_find()
60 if (!region) in dfl_fme_region_find()
63 return region; in dfl_fme_region_find()
72 struct fpga_region *region; in fme_pr() local
89 /* get fme header region */ in fme_pr()
133 region = dfl_fme_region_find(fme, port_pr.port_id); in fme_pr()
134 if (!region) { in fme_pr()
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/linux/drivers/net/ethernet/mellanox/mlxsw/
H A Dspectrum1_acl_tcam.c14 struct mlxsw_sp_acl_tcam_region *region; member
62 struct mlxsw_sp1_acl_tcam_region *region) in mlxsw_sp1_acl_ctcam_region_catchall_add() argument
67 mlxsw_sp_acl_ctcam_chunk_init(&region->cregion, in mlxsw_sp1_acl_ctcam_region_catchall_add()
68 &region->catchall.cchunk, in mlxsw_sp1_acl_ctcam_region_catchall_add()
81 err = mlxsw_sp_acl_ctcam_entry_add(mlxsw_sp, &region->cregion, in mlxsw_sp1_acl_ctcam_region_catchall_add()
82 &region->catchall.cchunk, in mlxsw_sp1_acl_ctcam_region_catchall_add()
83 &region->catchall.centry, in mlxsw_sp1_acl_ctcam_region_catchall_add()
87 region->catchall.rulei = rulei; in mlxsw_sp1_acl_ctcam_region_catchall_add()
95 mlxsw_sp_acl_ctcam_chunk_fini(&region->catchall.cchunk); in mlxsw_sp1_acl_ctcam_region_catchall_add()
101 struct mlxsw_sp1_acl_tcam_region *region) in mlxsw_sp1_acl_ctcam_region_catchall_del() argument
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H A Dspectrum_acl_ctcam.c15 struct mlxsw_sp_acl_tcam_region *region, in mlxsw_sp_acl_ctcam_region_resize() argument
21 region->key_type, new_size, region->id, in mlxsw_sp_acl_ctcam_region_resize()
22 region->tcam_region_info); in mlxsw_sp_acl_ctcam_region_resize()
28 struct mlxsw_sp_acl_tcam_region *region, in mlxsw_sp_acl_ctcam_region_move() argument
34 region->tcam_region_info, src_offset, in mlxsw_sp_acl_ctcam_region_move()
35 region->tcam_region_info, dst_offset, size); in mlxsw_sp_acl_ctcam_region_move()
46 struct mlxsw_sp_acl_tcam_region *region = cregion->region; in mlxsw_sp_acl_ctcam_region_entry_insert() local
61 region->tcam_region_info, in mlxsw_sp_acl_ctcam_region_entry_insert()
65 mlxsw_afk_encode(afk, region->key_info, &rulei->values, key, mask); in mlxsw_sp_acl_ctcam_region_entry_insert()
94 cregion->region->tcam_region_info, in mlxsw_sp_acl_ctcam_region_entry_remove()
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H A Dspectrum_acl_tcam.c109 struct mutex lock; /* guards region list updates */
146 struct mutex lock; /* Protects consistency of region, region2 pointers
149 struct mlxsw_sp_acl_tcam_region *region; member
169 struct mlxsw_sp_acl_tcam_region *region; member
210 struct mlxsw_sp_acl_tcam_region *region; in mlxsw_sp_acl_tcam_group_update() local
215 list_for_each_entry(region, &group->region_list, list) { in mlxsw_sp_acl_tcam_group_update()
219 if (region->list.next != &group->region_list && in mlxsw_sp_acl_tcam_group_update()
220 list_next_entry(region, list)->vregion == region->vregion) in mlxsw_sp_acl_tcam_group_update()
223 region->id, multi); in mlxsw_sp_acl_tcam_group_update()
385 struct mlxsw_sp_acl_tcam_region *region, in mlxsw_sp_acl_tcam_group_region_attach() argument
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/linux/Documentation/networking/devlink/
H A Ddevlink-region.rst4 Devlink Region
11 region can then be accessed via the devlink region interface.
13 Region snapshots are collected by the driver, and can be accessed via read
17 Snapshot identifiers are scoped to the devlink instance, not a region.
21 The major benefit to creating a region is to provide access to internal
29 requested snapshots must implement the ``.snapshot`` callback for the region
38 region should implement the ``.read`` callback in the ``devlink_region_ops``
48 $ devlink region help
49 $ devlink region show [ DEV/REGION ]
50 $ devlink region del DEV/REGION snapshot SNAPSHOT_ID
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H A Diosm.rst59 each having one secure bin file and at least one Loadmap/Region file. For flashing
61 data required for flashing. The data like region count and address of each region
91 b) Flashing the Loadmap/Region file
109 - The summary of exception details logged as part of this region.
111 - This region contains the details related to the exception occurred in the
114 - This region contains the logs related to the modem CDD driver.
116 - This region contains the eeprom logs.
118 - This region contains the current instance of bootloader logs.
120 - This region contains the previous instance of bootloader logs.
123 Region commands
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/linux/drivers/acpi/acpica/
H A Devregion.c4 * Module Name: evregion - Operation Region support
40 * an installed default region handler.
82 * PARAMETERS: region_obj - Internal region object
85 * region_offset - Where in the region to read or write
92 * DESCRIPTION: Dispatch an address space or operation region access to
95 * NOTE: During early initialization, we always install the default region
97 * region address spaces are always available as per the ACPI specification.
127 /* Ensure that there is a handler associated with this region */ in acpi_ev_address_space_dispatch()
129 handler_desc = region_obj->region.handler; in acpi_ev_address_space_dispatch()
132 "No handler for Region [%4.4s] (%p) [%s]", in acpi_ev_address_space_dispatch()
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/linux/kernel/cgroup/
H A Ddmem.c21 * @ref: References keeping the region alive.
22 * Keeps the region reference alive after a succesful RCU lookup.
36 * @pools: List of pools linked to this region.
41 /** @size: Size of region, in bytes */
48 * @unregistered: Whether the region is unregistered by its caller.
49 * No new pools should be added to the region afterwards.
61 struct dmem_cgroup_region *region; member
64 /* css node, RCU protected against region teardown */
79 * - Registering and unregistering region to/from list, requires global lock.
81 * - Adding a dmem_cgroup_pool_state to a region list.
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/linux/drivers/acpi/pmic/
H A DKconfig4 bool "PMIC (Power Management Integrated Circuit) operation region support"
7 region of the PMIC chip. The operation region can be used
14 bool "ACPI operation region support for Bay Trail Crystal Cove PMIC"
17 This config adds ACPI operation region support for the Bay Trail
21 bool "ACPI operation region support for Cherry Trail Crystal Cove PMIC"
24 This config adds ACPI operation region support for the Cherry Trail
28 bool "ACPI operation region support for XPower AXP288 PMIC"
31 This config adds ACPI operation region support for XPower AXP288 PMIC.
34 bool "ACPI operation region support for BXT WhiskeyCove PMIC"
37 This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
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/linux/arch/arm/mm/
H A Dpmsa-v7.c19 struct region { struct
25 static struct region __initdata mem[MPU_MAX_REGIONS]; argument
27 static struct region __initdata xip[MPU_MAX_REGIONS];
46 /* Region number */
52 /* Data-side / unified region attributes */
54 /* Region access control register */
60 /* Region size register */
66 /* Region base address register */
76 /* Optional instruction-side region attributes */
78 /* I-side Region access control register */
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/linux/Documentation/devicetree/bindings/fpga/
H A Dfpga-region.yaml4 $id: http://devicetree.org/schemas/fpga/fpga-region.yaml#
7 title: FPGA Region
17 - FPGA Region
46 Partial Reconfiguration Region (PRR)
53 into a PRR must fit and must use a subset of the region's connections.
54 * The busses within the FPGA are split such that each region gets its own
71 * During Partial Reconfiguration of a specific region, that region's bridge
107 region (PRR0-2) gets its own split of the busses that is independently gated by
115 When a DT overlay that targets an FPGA Region is applied, the FPGA Region will
124 When the overlay is removed, the child nodes will be removed and the FPGA Region
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/linux/arch/um/kernel/
H A Dphysmem.c121 struct iomem_region *region = iomem_regions; in phys_mapping() local
123 while (region != NULL) { in phys_mapping()
124 if ((phys >= region->phys) && in phys_mapping()
125 (phys < region->phys + region->size)) { in phys_mapping()
126 fd = region->fd; in phys_mapping()
127 *offset_out = phys - region->phys; in phys_mapping()
130 region = region->next; in phys_mapping()
158 " Configure <file> as an IO memory region named <name>.\n\n"
173 struct iomem_region *region = iomem_regions; in find_iomem() local
175 while (region != NULL) { in find_iomem()
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/linux/arch/arm64/mm/
H A Dcache.S20 * Ensure that the I and D caches are coherent within specified region.
21 * This is typically used when code has been written to a memory region,
24 * - start - virtual start address of region
25 * - end - virtual end address of region
48 * Ensure that the I and D caches are coherent within specified region.
49 * This is typically used when code has been written to a memory region,
52 * - start - virtual start address of region
53 * - end - virtual end address of region
64 * Ensure that the I and D caches are coherent within specified region.
65 * This is typically used when code has been written to a memory region,
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/linux/drivers/fpga/tests/
H A Dfpga-region-test.c3 * KUnit test for the FPGA Region
14 #include <linux/fpga/fpga-region.h>
32 struct fpga_region *region; member
64 * of the Region.
90 static int fake_region_get_bridges(struct fpga_region *region) in fake_region_get_bridges() argument
92 struct fpga_bridge *bridge = region->priv; in fake_region_get_bridges()
94 return fpga_bridge_get_to_list(bridge->dev.parent, region->info, &region->bridge_list); in fake_region_get_bridges()
105 struct fpga_region *region; in fpga_region_test_class_find() local
107 region = fpga_region_class_find(NULL, ctx->region_dev, fake_region_match); in fpga_region_test_class_find()
108 KUNIT_EXPECT_PTR_EQ(test, region, ctx->region); in fpga_region_test_class_find()
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/linux/drivers/virt/acrn/
H A Dmm.c19 static int modify_region(struct acrn_vm *vm, struct vm_memory_region_op *region) in modify_region() argument
30 regions->regions_gpa = virt_to_phys(region); in modify_region()
35 "Failed to set memory region for VM[%u]!\n", vm->vmid); in modify_region()
42 * acrn_mm_region_add() - Set up the EPT mapping of a memory region.
46 * @size: Size of the region.
55 struct vm_memory_region_op *region; in acrn_mm_region_add() local
58 region = kzalloc(sizeof(*region), GFP_KERNEL); in acrn_mm_region_add()
59 if (!region) in acrn_mm_region_add()
62 region->type = ACRN_MEM_REGION_ADD; in acrn_mm_region_add()
63 region->user_vm_pa = user_gpa; in acrn_mm_region_add()
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/linux/drivers/mtd/spi-nor/
H A Dotp.c28 * 256). Thus one "security register" maps to one OTP region.
155 static int spi_nor_otp_lock_bit_cr(unsigned int region) in spi_nor_otp_lock_bit_cr() argument
159 if (region >= ARRAY_SIZE(lock_bits)) in spi_nor_otp_lock_bit_cr()
162 return lock_bits[region]; in spi_nor_otp_lock_bit_cr()
166 * spi_nor_otp_lock_sr2() - lock the OTP region
168 * @region: OTP region
170 * Lock the OTP region by writing the status register-2. This method is used on
175 int spi_nor_otp_lock_sr2(struct spi_nor *nor, unsigned int region) in spi_nor_otp_lock_sr2() argument
180 lock_bit = spi_nor_otp_lock_bit_cr(region); in spi_nor_otp_lock_sr2()
188 /* no need to write the register if region is already locked */ in spi_nor_otp_lock_sr2()
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/linux/mm/
H A Dnommu.c94 * region. This test is intentionally done in reverse order, in kobjsize()
396 * initialise the percpu counter for VM and region record slabs
408 * validate the region tree
409 * - the caller must hold the region lock
414 struct vm_region *region, *last; in validate_nommu_regions() local
426 region = rb_entry(p, struct vm_region, vm_rb); in validate_nommu_regions()
429 BUG_ON(region->vm_end <= region->vm_start); in validate_nommu_regions()
430 BUG_ON(region->vm_top < region->vm_end); in validate_nommu_regions()
431 BUG_ON(region->vm_start < last->vm_top); in validate_nommu_regions()
443 * add a region into the global tree
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/linux/drivers/gpu/drm/amd/display/dc/hwss/dcn351/
H A Ddcn351_hwseq.c83 * ONO Region 11, DCPG 19: dsc3
84 * ONO Region 10, DCPG 3: dchubp3, dpp3
85 * ONO Region 9, DCPG 18: dsc2
86 * ONO Region 8, DCPG 2: dchubp2, dpp2
87 * ONO Region 7, DCPG 17: dsc1
88 * ONO Region 6, DCPG 1: dchubp1, dpp1
89 * ONO Region 5, DCPG 16: dsc0
90 * ONO Region 4, DCPG 0: dchubp0, dpp0
91 * ONO Region 3, DCPG 25: hpo - SKIPPED. Should be kept on
92 * ONO Region 2, DCPG 24: mpc opp optc dwb
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/linux/tools/testing/memblock/tests/
H A Dbasic_api.c38 * Expect to create a new entry. The region counter and total memory get
47 struct region r = { in memblock_add_simple_check()
71 * Expect to create a new entry. The region counter and total memory get
80 struct region r = { in memblock_add_node_simple_check()
115 * region counter fields get updated.
124 struct region r1 = { in memblock_add_disjoint_check()
128 struct region r2 = { in memblock_add_disjoint_check()
166 * Expect to merge the two entries into one region that starts at r2.base
168 * the available memory is updated, and the region counter stays the same.
177 struct region r1 = { in memblock_add_overlap_top_check()
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/linux/drivers/s390/cio/
H A Dvfio_ccw_chp.c22 struct ccw_schib_region *region; in vfio_ccw_schib_region_read() local
25 if (pos + count > sizeof(*region)) in vfio_ccw_schib_region_read()
29 region = private->region[i].data; in vfio_ccw_schib_region_read()
36 memcpy(region, &sch->schib, sizeof(*region)); in vfio_ccw_schib_region_read()
38 if (copy_to_user(buf, (void *)region + pos, count)) { in vfio_ccw_schib_region_read()
59 struct vfio_ccw_region *region) in vfio_ccw_schib_region_release() argument
86 struct ccw_crw_region *region; in vfio_ccw_crw_region_read() local
90 if (pos + count > sizeof(*region)) in vfio_ccw_crw_region_read()
100 region = private->region[i].data; in vfio_ccw_crw_region_read()
103 memcpy(&region->crw, &crw->crw, sizeof(region->crw)); in vfio_ccw_crw_region_read()
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H A Dvfio_ccw_async.c3 * Async I/O region for vfio_ccw
20 struct ccw_cmd_region *region; in vfio_ccw_async_region_read() local
23 if (pos + count > sizeof(*region)) in vfio_ccw_async_region_read()
27 region = private->region[i].data; in vfio_ccw_async_region_read()
28 if (copy_to_user(buf, (void *)region + pos, count)) in vfio_ccw_async_region_read()
42 struct ccw_cmd_region *region; in vfio_ccw_async_region_write() local
45 if (pos + count > sizeof(*region)) in vfio_ccw_async_region_write()
51 region = private->region[i].data; in vfio_ccw_async_region_write()
52 if (copy_from_user((void *)region + pos, buf, count)) { in vfio_ccw_async_region_write()
59 ret = region->ret_code ? region->ret_code : count; in vfio_ccw_async_region_write()
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/linux/drivers/md/
H A Ddm-region-hash.c10 #include <linux/dm-region-hash.h>
20 #define DM_MSG_PREFIX "region hash"
24 * Region hash
27 * region can be in one of three states: clean, dirty,
30 * In addition to being present in the hash table a region _may_
45 * io, up the recovery_count, and remove the region from the
64 /* holds persistent region state */
125 sector_t dm_rh_region_to_sector(struct dm_region_hash *rh, region_t region) in dm_rh_region_to_sector() argument
127 return region << rh->region_shift; in dm_rh_region_to_sector()
189 DMERR("unable to allocate region hash memory"); in dm_region_hash_create()
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/linux/drivers/acpi/
H A Dnvs.c3 * nvs.c - Routines for saving and restoring ACPI NVS memory region
40 struct nvs_region *region; in acpi_nvs_register() local
42 region = kmalloc(sizeof(*region), GFP_KERNEL); in acpi_nvs_register()
43 if (!region) in acpi_nvs_register()
45 region->phys_start = start; in acpi_nvs_register()
46 region->size = size; in acpi_nvs_register()
47 list_add_tail(&region->node, &nvs_region_list); in acpi_nvs_register()
56 struct nvs_region *region; in acpi_nvs_for_each_region() local
58 list_for_each_entry(region, &nvs_region_list, node) { in acpi_nvs_for_each_region()
59 rc = func(region->phys_start, region->size, data); in acpi_nvs_for_each_region()
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