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/linux/Documentation/devicetree/bindings/auxdisplay/
H A Dgpio-7-segment.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/auxdisplay/gpio-7-segment.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO based LED segment display
10 - Chris Packham <chris.packham@alliedtelesis.co.nz>
14 const: gpio-7-segment
16 segment-gpios:
18 An array of GPIOs one per segment. The first GPIO corresponds to the A
19 segment, the seventh GPIO corresponds to the G segment. Some LED blocks
[all …]
/linux/drivers/remoteproc/
H A Dremoteproc_coredump.c1 // SPDX-License-Identifier: GPL-2.0-only
23 * rproc_coredump_cleanup() - clean up dump_segments list
30 list_for_each_entry_safe(entry, tmp, &rproc->dump_segments, node) { in rproc_coredump_cleanup()
31 list_del(&entry->node); in rproc_coredump_cleanup()
38 * rproc_coredump_add_segment() - add segment of device memory to coredump
39 * @rproc: handle of a remote processor
41 * @size: size of segment
43 * Add device memory to the list of segments to be included in a coredump for
50 struct rproc_dump_segment *segment; in rproc_coredump_add_segment() local
52 segment = kzalloc_obj(*segment); in rproc_coredump_add_segment()
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/linux/include/linux/sunrpc/
H A Drpc_rdma.h1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
3 * Copyright (c) 2015-2017 Oracle. All rights reserved.
4 * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
6 * This software is available to you under a choice of one of two
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the BSD-type
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
73 ERR_CHUNK = 2
78 RDMA_NOMSG = 1, /* An RPC call or reply msg - separate body */
79 RDMA_MSGP = 2, /* An RPC call or reply msg with padding */
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/linux/Documentation/networking/
H A Dtcp_ao.rst1 .. SPDX-License-Identifier: GPL-2.0
7 TCP Authentication Option (TCP-AO) provides a TCP extension aimed at verifying
8 segments between trusted peers. It adds a new TCP header option with
9 a Message Authentication Code (MAC). MACs are produced from the content
10 of a TCP segment using a ke
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/linux/fs/nilfs2/
H A Dsegment.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * NILFS Segment constructor prototypes and definitions
5 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
22 * struct nilfs_recovery_info - Recovery information
26 * @ri_lsegs_start: Region for roll-forwarding (start block number)
27 * @ri_lsegs_end: Region for roll-forwarding (end block number)
28 * @ri_lsegs_start_seq: Sequence value of the segment at ri_lsegs_start
30 * @ri_pseg_start: Block number of the last partial segment
31 * @ri_seq: Sequence number on the last partial segment
32 * @ri_segnum: Segment number on the last partial segment
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H A Dthe_nilfs.h1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
19 #include <linux/backing-dev.h>
36 * struct the_nilfs - struct to supervise multiple nilfs mount points
43 * @ns_sbh: buffer heads of on-disk super blocks
50 * @ns_seg_seq: segment sequence counter
51 * @ns_segnum: index number of the latest full segment.
52 * @ns_nextnum: index number of the full segment index to be used next
53 * @ns_pseg_offset: offset of next partial segment in the current full segment
55 * @ns_ctime: write time of the last segment
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/linux/include/uapi/linux/
H A Dfsmap.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
34 * the first entry it knows about. For a subsequent call, the
35 * contents of fsmap_head.fmh_recs[fsmap_head.fmh_count - 1] should be
44 * fmr_device can be either a 32-bit cookie representing a device, or
45 * a 32-bit dev_t if the FMH_OF_DEV_T flag is set. fmr_physical,
47 * fmr_owner is either an inode number, or a special value if
53 __u64 fmr_physical; /* device offset of segment */
55 __u64 fmr_offset; /* file offset of segment */
56 __u64 fmr_length; /* length of segment */
67 struct fsmap fmh_keys[2]; /* low and high keys for the mapping search */
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H A Dcoff.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 The GAS product is under the GNU General Public License, version 2 or later.
9 The actual loader module only uses a few of these structures. The full
11 more information about COFF, then O'Reilly has a very excellent book.
17 #define E_SYMNMLEN 8 /* Number of characters in a symbol name */
18 #define E_FILNMLEN 14 /* Number of characters in a file name */
28 /* Load a short int from the following tables with little-endian formats */
32 /* Load a long int from the following tables with little-endian formats */
34 ((unsigned long)((unsigned char)ps[2])<<16) |\
38 /* Load a short int from the following tables with big-endian formats */
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H A Dseg6_local.h2 * SR-IPv6 implementation
11 * 2 of the License, or (at your option) any later version.
34 #define SEG6_LOCAL_MAX (__SEG6_LOCAL_MAX - 1)
38 /* node segment */
40 /* adjacency segment (IPv6 cross-connect) */
41 SEG6_LOCAL_ACTION_END_X = 2,
44 /* decap and L2 cross-connect */
46 /* decap and IPv6 cross-connect */
48 /* decap and IPv4 cross-connect */
54 /* binding segment with insertion */
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/linux/fs/btrfs/
H A Dlzo.c1 // SPDX-License-Identifier: GPL-2.0
33 * 2. Segment(s)
34 * Variable size. Each segment includes one segment header, followed by data
37 * For inlined LZO compressed extent, only one segment is allowed.
38 * One segment represents at most one sector of uncompressed data.
40 * 2.1 Segment heade
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/linux/drivers/scsi/
H A Dlibiscsi_tcp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * iSCSI over TCP/IP Data-Path lib
7 * Copyright (C) 2005 - 2006 Mike Christie
9 * maintained by open-iscsi@googlegroups.com
42 MODULE_DESCRIPTION("iSCSI/TCP data-path");
59 &(_conn)->cls_conn->dev, \
64 struct iscsi_segment *segment);
80 * iscsi_tcp_segment_init_sg - init indicated scatterlist entry
81 * @segment: the buffer object
85 * This function sets up the segment so that subsequent
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H A Dvmw_pvscsi.h4 * Copyright (C) 2008-2014, VMware, Inc. All Rights Reserved.
8 * Free Software Foundation; version 2 of the License and no later version.
12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
16 * You should have received a copy of the GNU General Public License
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
27 #define PVSCSI_DRIVER_VERSION_STRING "1.0.7.0-k"
31 #define MASK(n) ((1 << (n)) - 1) /* make an n-bit mask */
50 BTSTAT_INVPARAM = 0x1a, /* invalid parameter in CCB or segment
59 * sent a SCSI RST */
60 BTSTAT_SENTRST = 0x22, /* host adapter asserted a SCSI RST */
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/linux/arch/x86/math-emu/
H A Dget_address.c
/linux/Documentation/arch/powerpc/
H A Dpci_iov_resource_on_powernv.rst22 A Partitionable Endpoint (PE) is a way to group the various resources
23 associated with a device or a set of devices to provide isolation between
24 partitions (i.e., filtering of DMA, MSIs etc.) and to provide a mechanism
25 to freeze a device that is causing errors in order to limit the possibility
28 There is thus, in HW, a table of PE states that contains a pair of "frozen"
32 When a PE is frozen, all stores in any direction are dropped and all loads
33 return all 1's value. MSIs are also blocked. There's a bit more state that
40 The following section provides a rough description of what we have on P8
42 is a completely separate HW entity that replicates the entire logic, so has
45 2. Implementation of Partitionable Endpoints on P8 (IODA2)
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/linux/drivers/md/dm-pcache/
H A Dcache.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 #include "segment.h"
38 /* Offset and size definitions for cache segment control */
56 #define PCACHE_CACHE_FLAGS_CACHE_MODE_MASK GENMASK(5, 2)
59 #define PCACHE_CACHE_MODE_WRITEAROUND 2
79 u32 cache_seg_id; /* Index in cache->segments */
80 struct pcache_segment segment; member
225 return FIELD_GET(PCACHE_CACHE_FLAGS_GC_PERCENT_MASK, cache->cache_info.flags); in pcache_cache_get_gc_percent()
256 #define SUBTREE_WALK_RET_NEED_KEY 2
268 /* pre-allocated key and backing_dev_req */
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/linux/Documentation/userspace-api/media/v4l/
H A Dext-ctrls-jpeg.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _jpeg-controls:
16 .. _jpeg-control-id:
24 return a description of this control class.
29 spatial dimension. See :ref:`itu-t81`, clause A.1.1. for more
36 .. flat-table::
37 :header-rows: 0
38 :stub-columns: 0
40 * - ``V4L2_JPEG_CHROMA_SUBSAMPLING_444``
41 - No chroma subsampling, each pixel has Y, Cr and Cb values.
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/linux/drivers/acpi/acpica/
H A Dnsaccess.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: nsaccess - Top-level functions for accessing ACPI namespace
51 * The global root ptr is initially NULL, so a non-NULL value indicates in acpi_ns_root_initialize()
85 for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { in acpi_ns_root_initialize()
90 if (!strcmp(init_val->name, "_OSI") in acpi_ns_root_initialize()
102 acpi_ns_create_node(*ACPI_CAST_PTR(u32, init_val->name)); in acpi_ns_root_initialize()
108 new_node->descriptor_type = ACPI_DESC_TYPE_NAMED; in acpi_ns_root_initialize()
109 new_node->type = init_val->type; in acpi_ns_root_initialize()
114 prev_node->peer = new_node; in acpi_ns_root_initialize()
117 new_node->parent = &acpi_gbl_root_node_struct; in acpi_ns_root_initialize()
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H A Dexnames.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: exnames - interpreter/scanner name load/execute
6 * Copyright (C) 2000 - 2026, Intel Corp.
27 * PARAMETERS: prefix_count - Count of parent levels. Special cases:
28 * (-1)==root, 0==none
29 * num_name_segs - coun
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/linux/drivers/net/ethernet/intel/i40e/
H A Di40e_ddp.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
27 * i40e_ddp_profiles_eq - checks if DDP profiles are the equivalent
28 * @a: new profile info
34 static bool i40e_ddp_profiles_eq(struct i40e_profile_info *a, in i40e_ddp_profiles_eq() argument
37 return a->track_id == b->track_id && in i40e_ddp_profiles_eq()
38 !memcmp(&a->version, &b->version, sizeof(a->version)) && in i40e_ddp_profiles_eq()
39 !memcmp(&a->name, &b->name, I40E_DDP_NAME_SIZE); in i40e_ddp_profiles_eq()
43 * i40e_ddp_does_profile_exist - checks if DDP profile loaded already
63 return -1; in i40e_ddp_does_profile_exist()
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/linux/drivers/dma/xilinx/
H A Dxilinx_dma.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 2010-2014 Xilinx, Inc. All rights reserved.
10 * The AXI Video Direct Memory Access (AXI VDMA) core is a soft Xilinx IP
11 * core that provides high-bandwidth direct memory access between memory
12 * and AXI4-Stream type video target peripherals. The core provides efficient
18 * registers are accessed through an AXI4-Lite slave interface.
20 * The AXI Direct Memory Access (AXI DMA) core is a soft Xilinx IP core that
21 * provides high-bandwidth one dimensional direct memory access between memory
22 * and AXI4-Stream target peripherals. It supports one receive and one
25 * The AXI CDMA, is a soft IP, which provides high-bandwidth Direct Memory
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/linux/drivers/usb/cdns3/
H A Dcdnsp-mem.c1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/dma-mapping.h>
18 #include "cdnsp-gadget.h"
19 #include "cdnsp-trace.h"
24 * Allocates a generic ring segment from the ring pool, sets the dma address,
25 * initializes the segment to zero, and sets the private next pointer to NULL.
42 seg->trb in cdnsp_segment_alloc()
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/linux/Documentation/i2c/muxes/
H A Di2c-mux-gpio.rst2 Kernel driver i2c-mux-gpio
8 -----------
10 i2c-mux-gpio is an i2c mux driver providing access to I2C bus segments
11 from a master I2C bus and a hardware MUX controlled through GPIO pins.
15 ---------- ---------- Bus segment 1 - - - - -
16 | | SCL/SDA | |-------------- | |
17 | |------------| |
18 | | | | Bus segment 2 | |
19 | Linux | GPIO 1..N | MUX |--------------- Devices
20 | |------------| | | |
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/linux/drivers/infiniband/hw/hfi1/
H A Deprom.c1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
15 * partition 2: the rest
24 #define EP_PAGE_MASK (EP_PAGE_SIZE - 1)
44 * Read a 256 byte (64 dword) EPROM page.
45 * All callers have verified the offset is at a page boundary.
75 * command address range. Note that '>' is correct below - the end in read_length()
79 return -EINVAL; in read_length()
91 bytes = EP_PAGE_SIZE - start_offset; in read_length()
102 len -= bytes; in read_length()
113 len -= EP_PAGE_SIZE; in read_length()
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/linux/arch/x86/realmode/rm/
H A Dreboot.S1 /* SPDX-License-Identifier: GPL-2.0 */
4 #include <asm/segment.h>
6 #include <asm/processor-flags.h>
7 #include <asm/msr-index.h>
51 * Set up a GDT from which we can load segment descriptors for real
58 * Load the data segment registers with 16-bit compatible values
70 * This is 16-bit protected mode code to disable paging and the cache,
74 * followed immediately by a far jump instruction, which set CS to a
80 * (protected-mode enable) and TS (task switch for coprocessor state
82 * NW, to disable the cache on a 486, and invalidates the cache. This
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/linux/kernel/rcu/
H A Drcu_segcblist.c1 // SPDX-License-Identifier: GPL-2.0+
20 rclp->head = NULL; in rcu_cblist_init()
21 rclp->tail = &rclp->head; in rcu_cblist_init()
22 rclp->len = 0; in rcu_cblist_init()
30 *rclp->tail = rhp; in rcu_cblist_enqueue()
31 rclp->tail = &rhp->next; in rcu_cblist_enqueue()
32 WRITE_ONCE(rclp->len, rclp->len + 1); in rcu_cblist_enqueue()
37 * any contents of the first. If rhp is non-NULL, enqueue it as the sole
39 * rcu_cblist structure, if initially non-empty, always appears non-empty
47 drclp->head = srclp->head; in rcu_cblist_flush_enqueue()
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