| /Linux-v5.15/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 an 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 an 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-v5.15/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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| /Linux-v5.15/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-v5.15/arch/arm64/mm/ |
| D | cache.S | 20 * 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
63 * Ensure that the I and D caches are coherent within specified region.
64 * This is typically used when code has been written to a memory region,
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| /Linux-v5.15/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-v5.15/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-v5.15/drivers/acpi/acpica/ |
| D | evregion.c | 4 * Module Name: evregion - Operation Region support
40 * an installed default region handler.
81 * PARAMETERS: region_obj - Internal region object
84 * region_offset - Where in the region to read or write
91 * DESCRIPTION: Dispatch an address space or operation region access to
94 * NOTE: During early initialization, we always install the default region
96 * region address spaces are always available as per the ACPI specification.
126 /* Ensure that there is a handler associated with this region */ in acpi_ev_address_space_dispatch()
128 handler_desc = region_obj->region.handler; in acpi_ev_address_space_dispatch()
131 "No handler for Region [%4.4s] (%p) [%s]", in acpi_ev_address_space_dispatch()
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| /Linux-v5.15/tools/testing/selftests/kvm/lib/ |
| D | kvm_util.c | 217 * When phy_pages is non-zero, a memory region of phy_pages physical pages
356 /* The maximum page table size for a memory region will be when the in vm_create_with_vcpus()
419 struct userspace_mem_region *region; in kvm_vm_restart() local
425 hash_for_each(vmp->regions.slot_hash, ctr, region, slot_node) { in kvm_vm_restart()
426 int ret = ioctl(vmp->fd, KVM_SET_USER_MEMORY_REGION, ®ion->region); in kvm_vm_restart()
431 ret, errno, region->region.slot, in kvm_vm_restart()
432 region->region.flags, in kvm_vm_restart()
433 region->region.guest_phys_addr, in kvm_vm_restart()
434 region->region.memory_size); in kvm_vm_restart()
467 * Userspace Memory Region Find
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| /Linux-v5.15/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-v5.15/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-v5.15/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 an 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-v5.15/drivers/virt/acrn/ |
| D | mm.c | 18 static int modify_region(struct acrn_vm *vm, struct vm_memory_region_op *region) in modify_region() argument
29 regions->regions_gpa = virt_to_phys(region); in modify_region()
34 "Failed to set memory region for VM[%u]!\n", vm->vmid); in modify_region()
41 * acrn_mm_region_add() - Set up the EPT mapping of a memory region.
45 * @size: Size of the region.
54 struct vm_memory_region_op *region; in acrn_mm_region_add() local
57 region = kzalloc(sizeof(*region), GFP_KERNEL); in acrn_mm_region_add()
58 if (!region) in acrn_mm_region_add()
61 region->type = ACRN_MEM_REGION_ADD; in acrn_mm_region_add()
62 region->user_vm_pa = user_gpa; in acrn_mm_region_add()
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| /Linux-v5.15/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-v5.15/drivers/mtd/spi-nor/ |
| D | otp.c | 28 * 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-v5.15/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-v5.15/mm/ |
| D | nommu.c | 95 * region. This test is intentionally done in reverse order, in kobjsize()
407 * initialise the percpu counter for VM and region record slabs
419 * validate the region tree
420 * - the caller must hold the region lock
425 struct vm_region *region, *last; in validate_nommu_regions() local
437 region = rb_entry(p, struct vm_region, vm_rb); in validate_nommu_regions()
440 BUG_ON(region->vm_end <= region->vm_start); in validate_nommu_regions()
441 BUG_ON(region->vm_top < region->vm_end); in validate_nommu_regions()
442 BUG_ON(region->vm_start < last->vm_top); in validate_nommu_regions()
454 * add a region into the global tree
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| /Linux-v5.15/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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