| /Linux-v5.10/drivers/fpga/ |
| D | fpga-region.c | 3 * FPGA Region - Support for FPGA programming under Linux
10 #include <linux/fpga/fpga-region.h>
36 * fpga_region_get - get an exclusive reference to a fpga region
37 * @region: FPGA Region struct
39 * Caller should call fpga_region_put() when done with region.
42 * Return -EBUSY if someone already has a reference to the region.
43 * Return -ENODEV if @np is not a FPGA Region.
45 static struct fpga_region *fpga_region_get(struct fpga_region *region) in fpga_region_get() argument
47 struct device *dev = ®ion->dev; in fpga_region_get()
49 if (!mutex_trylock(®ion->mutex)) { in fpga_region_get()
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| D | dfl-afu-dma-region.c | 3 * 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->pages); in afu_dma_pin_pages()
66 unpin_user_pages(region->pages, pinned); in afu_dma_pin_pages()
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| D | dfl-afu-region.c | 3 * 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.
42 * @region_index: region index.
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| D | of-fpga-region.c | 3 * FPGA Region - Device Tree support for FPGA programming under Linux
10 #include <linux/fpga/fpga-region.h>
20 { .compatible = "fpga-region", },
26 * of_fpga_region_find - find FPGA region
27 * @np: device node of FPGA Region
29 * Caller will need to put_device(®ion->dev) when done.
31 * Returns FPGA Region struct or NULL
40 * @np: device node of FPGA region
42 * Get FPGA Manager from "fpga-mgr" property or from ancestor region.
55 if (of_device_is_compatible(np, "fpga-region")) { in of_fpga_region_get_mgr()
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| D | dfl-fme-region.c | 3 * FPGA Region Driver for FPGA Management Engine (FME)
18 #include <linux/fpga/fpga-region.h>
22 static int fme_region_get_bridges(struct fpga_region *region) in fme_region_get_bridges() argument
24 struct dfl_fme_region_pdata *pdata = region->priv; in fme_region_get_bridges()
27 return fpga_bridge_get_to_list(dev, region->info, ®ion->bridge_list); in fme_region_get_bridges()
34 struct fpga_region *region; in fme_region_probe() local
42 region = devm_fpga_region_create(dev, mgr, fme_region_get_bridges); in fme_region_probe()
43 if (!region) { in fme_region_probe()
48 region->priv = pdata; in fme_region_probe()
49 region->compat_id = mgr->compat_id; in fme_region_probe()
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| D | dfl-afu.h | 25 * struct dfl_afu_mmio_region - afu mmio region data structure
27 * @index: region index.
28 * @flags: region flags (access permission).
29 * @size: region size.
30 * @offset: region offset from start of the device fd.
31 * @phys: region's physical address.
32 * @node: node to add to afu feature dev's region list.
44 * struct fpga_afu_dma_region - afu DMA region data structure
46 * @user_addr: region userspace virtual address.
47 * @length: region length.
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| D | dfl-fme-pr.c | 25 #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()
134 region = dfl_fme_region_find(fme, port_pr.port_id); in fme_pr()
135 if (!region) { in fme_pr()
140 fpga_image_info_free(region->info); in fme_pr()
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| /Linux-v5.10/drivers/net/ethernet/mellanox/mlxsw/ |
| D | spectrum1_acl_tcam.c | 14 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(®ion->cregion, in mlxsw_sp1_acl_ctcam_region_catchall_add()
68 ®ion->catchall.cchunk, in mlxsw_sp1_acl_ctcam_region_catchall_add()
81 err = mlxsw_sp_acl_ctcam_entry_add(mlxsw_sp, ®ion->cregion, in mlxsw_sp1_acl_ctcam_region_catchall_add()
82 ®ion->catchall.cchunk, in mlxsw_sp1_acl_ctcam_region_catchall_add()
83 ®ion->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(®ion->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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| D | spectrum_acl_ctcam.c | 15 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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| D | spectrum_acl_tcam.c | 51 /* Use 1:1 mapping between ACL region and TCAM region */ in mlxsw_sp_acl_tcam_init()
168 struct mutex lock; /* guards region list updates */
205 struct mutex lock; /* Protects consistency of region, region2 pointers
208 struct mlxsw_sp_acl_tcam_region *region; member
228 struct mlxsw_sp_acl_tcam_region *region; member
269 struct mlxsw_sp_acl_tcam_region *region; in mlxsw_sp_acl_tcam_group_update() local
274 list_for_each_entry(region, &group->region_list, list) { in mlxsw_sp_acl_tcam_group_update()
278 if (region->list.next != &group->region_list && in mlxsw_sp_acl_tcam_group_update()
279 list_next_entry(region, list)->vregion == region->vregion) in mlxsw_sp_acl_tcam_group_update()
282 region->id, multi); in mlxsw_sp_acl_tcam_group_update()
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| /Linux-v5.10/Documentation/networking/devlink/ |
| D | devlink-region.rst | 4 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
39 $ devlink region help
40 $ devlink region show [ DEV/REGION ]
41 $ devlink region del DEV/REGION snapshot SNAPSHOT_ID
42 $ devlink region dump DEV/REGION [ snapshot SNAPSHOT_ID ]
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| /Linux-v5.10/drivers/acpi/pmic/ |
| D | Kconfig | 4 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-v5.10/Documentation/driver-api/fpga/ |
| D | fpga-region.rst | 1 FPGA Region
7 This document is meant to be a brief overview of the FPGA region API usage. A
11 For the purposes of this API document, let's just say that a region associates
12 an FPGA Manager and a bridge (or bridges) with a reprogrammable region of an
13 FPGA or the whole FPGA. The API provides a way to register a region and to
14 program a region.
16 Currently the only layer above fpga-region.c in the kernel is the Device Tree
17 support (of-fpga-region.c) described in [#f1]_. The DT support layer uses regions
18 to program the FPGA and then DT to handle enumeration. The common region code
22 An fpga-region can be set up to know the following things:
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| /Linux-v5.10/tools/testing/selftests/kvm/lib/ |
| D | kvm_util.c | 178 * When phy_pages is non-zero, a memory region of phy_pages physical pages
289 struct userspace_mem_region *region; in kvm_vm_restart() local
295 list_for_each_entry(region, &vmp->userspace_mem_regions, list) { in kvm_vm_restart()
296 int ret = ioctl(vmp->fd, KVM_SET_USER_MEMORY_REGION, ®ion->region); in kvm_vm_restart()
301 ret, errno, region->region.slot, in kvm_vm_restart()
302 region->region.flags, in kvm_vm_restart()
303 region->region.guest_phys_addr, in kvm_vm_restart()
304 region->region.memory_size); in kvm_vm_restart()
332 * Userspace Memory Region Find
342 * Pointer to overlapping region, NULL if no such region.
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| /Linux-v5.10/drivers/acpi/acpica/ |
| D | evregion.c | 4 * Module Name: evregion - Operation Region support
39 * an installed default region handler.
80 * PARAMETERS: region_obj - Internal region object
83 * region_offset - Where in the region to read or write
90 * DESCRIPTION: Dispatch an address space or operation region access to
93 * NOTE: During early initialization, we always install the default region
95 * region address spaces are always available as per the ACPI specification.
123 /* Ensure that there is a handler associated with this region */ in acpi_ev_address_space_dispatch()
125 handler_desc = region_obj->region.handler; in acpi_ev_address_space_dispatch()
128 "No handler for Region [%4.4s] (%p) [%s]", in acpi_ev_address_space_dispatch()
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| /Linux-v5.10/drivers/staging/media/atomisp/pci/isp/kernels/eed1_8/ |
| D | ia_css_eed1_8_types.h | 48 …cthres_0; /** Threshold to prevent chroma coring due to noise or green disparity in dark region. */
49 …hres_1; /** Threshold to prevent chroma coring due to noise or green disparity in bright region. */
50 s32 fc_sat_coef; /** How much color saturation to maintain in high color saturation region. */
53 s32 aerel_thres0; /** Threshold for Non-Directional Reliability at dark region. */
54 s32 aerel_gain0; /** Gain for Non-Directional Reliability at dark region. */
55 s32 aerel_thres1; /** Threshold for Non-Directional Reliability at bright region. */
56 s32 aerel_gain1; /** Gain for Non-Directional Reliability at bright region. */
58 s32 derel_thres0; /** Threshold for Directional Reliability at dark region. */
59 s32 derel_gain0; /** Gain for Directional Reliability at dark region. */
60 s32 derel_thres1; /** Threshold for Directional Reliability at bright region. */
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| /Linux-v5.10/arch/arm/mm/ |
| D | pmsa-v7.c | 19 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-v5.10/Documentation/devicetree/bindings/fpga/ |
| D | fpga-region.txt | 1 FPGA Region Device Tree Binding
9 - FPGA Region
39 Partial Reconfiguration Region (PRR)
46 into a PRR must fit and must use a subset of the region's connections.
47 * The busses within the FPGA are split such that each region gets its own
64 * During Partial Reconfiguration of a specific region, that region's bridge
100 region (PRR0-2) gets its own split of the busses that is independently gated by
108 When a DT overlay that targets a FPGA Region is applied, the FPGA Region will
117 When the overlay is removed, the child nodes will be removed and the FPGA Region
121 FPGA Region
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| /Linux-v5.10/arch/um/kernel/ |
| D | physmem.c | 127 struct iomem_region *region = iomem_regions; in phys_mapping() local
129 while (region != NULL) { in phys_mapping()
130 if ((phys >= region->phys) && in phys_mapping()
131 (phys < region->phys + region->size)) { in phys_mapping()
132 fd = region->fd; in phys_mapping()
133 *offset_out = phys - region->phys; in phys_mapping()
136 region = region->next; in phys_mapping()
168 " Configure <file> as an IO memory region named <name>.\n\n"
183 struct iomem_region *region = iomem_regions; in find_iomem() local
185 while (region != NULL) { in find_iomem()
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| /Linux-v5.10/drivers/s390/cio/ |
| D | vfio_ccw_chp.c | 21 struct ccw_schib_region *region; in vfio_ccw_schib_region_read() local
24 if (pos + count > sizeof(*region)) in vfio_ccw_schib_region_read()
28 region = private->region[i].data; in vfio_ccw_schib_region_read()
35 memcpy(region, &private->sch->schib, sizeof(*region)); in vfio_ccw_schib_region_read()
37 if (copy_to_user(buf, (void *)region + pos, count)) { in vfio_ccw_schib_region_read()
58 struct vfio_ccw_region *region) in vfio_ccw_schib_region_release() argument
85 struct ccw_crw_region *region; in vfio_ccw_crw_region_read() local
89 if (pos + count > sizeof(*region)) in vfio_ccw_crw_region_read()
99 region = private->region[i].data; in vfio_ccw_crw_region_read()
102 memcpy(®ion->crw, &crw->crw, sizeof(region->crw)); in vfio_ccw_crw_region_read()
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| D | vfio_ccw_async.c | 3 * Async I/O region for vfio_ccw
21 struct ccw_cmd_region *region; in vfio_ccw_async_region_read() local
24 if (pos + count > sizeof(*region)) in vfio_ccw_async_region_read()
28 region = private->region[i].data; in vfio_ccw_async_region_read()
29 if (copy_to_user(buf, (void *)region + pos, count)) in vfio_ccw_async_region_read()
43 struct ccw_cmd_region *region; in vfio_ccw_async_region_write() local
46 if (pos + count > sizeof(*region)) in vfio_ccw_async_region_write()
52 region = private->region[i].data; in vfio_ccw_async_region_write()
53 if (copy_from_user((void *)region + pos, buf, count)) { in vfio_ccw_async_region_write()
60 ret = region->ret_code ? region->ret_code : count; in vfio_ccw_async_region_write()
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| /Linux-v5.10/mm/ |
| D | nommu.c | 95 * region. This test is intentionally done in reverse order, in kobjsize()
417 * initialise the percpu counter for VM and region record slabs
429 * validate the region tree
430 * - the caller must hold the region lock
435 struct vm_region *region, *last; in validate_nommu_regions() local
447 region = rb_entry(p, struct vm_region, vm_rb); in validate_nommu_regions()
450 BUG_ON(region->vm_end <= region->vm_start); in validate_nommu_regions()
451 BUG_ON(region->vm_top < region->vm_end); in validate_nommu_regions()
452 BUG_ON(region->vm_start < last->vm_top); in validate_nommu_regions()
464 * add a region into the global tree
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| /Linux-v5.10/arch/x86/boot/compressed/ |
| D | kaslr.c | 157 * memmap=nn@ss specifies usable region, should in parse_memmap()
183 * system can use. Region above the limit should be avoided. in parse_memmap()
395 * Avoid the region that is unsafe to overlap during in mem_avoid_init()
434 * overlap region with the lowest address.
496 static void store_slot_info(struct mem_vector *region, unsigned long image_size) in store_slot_info() argument
503 slot_area.addr = region->start; in store_slot_info()
504 slot_area.num = 1 + (region->size - image_size) / CONFIG_PHYSICAL_ALIGN; in store_slot_info()
511 * Skip as many 1GB huge pages as possible in the passed region
515 process_gb_huge_pages(struct mem_vector *region, unsigned long image_size) in process_gb_huge_pages() argument
522 store_slot_info(region, image_size); in process_gb_huge_pages()
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| /Linux-v5.10/include/linux/ |
| D | dm-region-hash.h | 5 * Device-Mapper dirty region hash interface.
16 * Region hash
22 * States a region can have.
32 * Region hash create/destroy.
51 sector_t dm_rh_region_to_sector(struct dm_region_hash *rh, region_t region);
55 * Get region size and key (ie. number of the region).
61 * Get/set/update region state (and dirty log).
64 int dm_rh_get_state(struct dm_region_hash *rh, region_t region, int may_block);
65 void dm_rh_set_state(struct dm_region_hash *rh, region_t region,
68 /* Non-zero errors_handled leaves the state of the region NOSYNC */
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| /Linux-v5.10/drivers/acpi/ |
| D | nvs.c | 3 * nvs.c - Routines for saving and restoring ACPI NVS memory region
38 struct nvs_region *region; in acpi_nvs_register() local
40 region = kmalloc(sizeof(*region), GFP_KERNEL); in acpi_nvs_register()
41 if (!region) in acpi_nvs_register()
43 region->phys_start = start; in acpi_nvs_register()
44 region->size = size; in acpi_nvs_register()
45 list_add_tail(®ion->node, &nvs_region_list); in acpi_nvs_register()
54 struct nvs_region *region; in acpi_nvs_for_each_region() local
56 list_for_each_entry(region, &nvs_region_list, node) { in acpi_nvs_for_each_region()
57 rc = func(region->phys_start, region->size, data); in acpi_nvs_for_each_region()
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