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/linux/include/uapi/linux/
H A Dublk_cmd.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
67 * cqe->userdata.
98 /* only ABORT means that no re-fetch */
101 #define UBLK_IO_RES_ABORT (-ENODEV)
112 #define UBLK_IO_BUF_BITS_MASK ((1ULL << UBLK_IO_BUF_BITS) - 1)
117 #define UBLK_TAG_BITS_MASK ((1ULL << UBLK_TAG_BITS) - 1)
122 #define UBLK_QID_BITS_MASK ((1ULL << UBLK_QID_BITS) - 1)
130 * zero copy requires 4k block size, and can remap ublk driver's io
151 * - Block devices are recoverable if ublk server exits and restarts
152 * - Outstanding I/O when ublk server exits is met with errors
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/linux/include/linux/
H A Dtextsearch.h1 /* SPDX-License-Identifier: GPL-2.0 */
19 * struct ts_state - search state
30 * struct ts_ops - search module operations
53 * struct ts_config - search configuration
56 * @get_next_block: callback to fetch the next block to search in
65 * @get_next_block: fetch next block of data
72 * head of the next block of data to &*dst and return the length
73 * of the block or 0 if at the end. consumed == 0 indicates
74 * a new search. May store/read persistent values in state->cb.
94 * textsearch_next - continue searching for a pattern
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/linux/fs/ubifs/
H A Dkey.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2006-2008 Nokia Corporation.
12 * This header contains various key-related definitions and helper function.
19 * Keys are 64-bits long. First 32-bits are inode number (parent inode number
28 * different c->key_format. But right now, there is only one key type, UBIFS_SIMPLE_KEY_FMT.
35 * key_mask_hash - mask a valid hash value.
51 * key_r5_hash - R5 hash function (borrowed from reiserfs).
60 while (len--) { in key_r5_hash()
71 * key_test_hash - testing hash function.
85 * ino_key_init - initialize inode key.
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/linux/drivers/misc/sgi-gru/
H A Dgru_instructions.h16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
45 * Control block status and exception codes
65 * Structure used to fetch exception detail for CBs that terminate with
88 /* DW 0 - low */
98 /* DW 0 - high */
107 /* DW 2-6 */
180 /* GAMIR - AMOs with implicit operands */
181 #define EOP_IR_FETCH 0x01 /* Plain fetch of memory */
182 #define EOP_IR_CLR 0x02 /* Fetch and clear */
183 #define EOP_IR_INC 0x05 /* Fetch and increment */
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/linux/drivers/media/pci/intel/ipu6/
H A Dipu6.h1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Copyright (C) 2013 - 2024 Intel Corporation */
11 #include "ipu6-buttress.h"
17 #define IPU6_NAME "intel-ipu6"
35 * IPU6 - TGL
36 * IPU6SE - JSL
37 * IPU6EP - ADL/RPL
38 * IPU6EP_MTL - MTL
96 /* The firmware is accessible within the first 2 GiB only in non-secure mode. */
116 * Threshold values are pre-defined and are arrived at after performance
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/linux/drivers/crypto/
H A Dsa2ul.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (C) 2018-2020 Texas Instruments Incorporated - http://www.ti.com
62 ((ctx_sz) ? ((ctx_sz) / 32 - 1) : 0)
82 /* 16-bit Length of Data to be processed */
96 /* SWINFO word-0 flags */
125 * Bit 0-1: Fetch PHP Bytes
126 * Bit 2-3: Fetch Encryption/Air Ciphering Bytes
127 * Bit 4-5: Fetch Authentication Bytes or Encr pass 2
128 * Bit 6-7: Evict PHP Bytes
155 #define SA_ALIGN_MASK (sizeof(u32) - 1)
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/linux/Documentation/bpf/
H A Dmap_hash.rst1 .. SPDX-License-Identifier: GPL-2.0-only
3 .. Copyright (C) 2022-2023 Isovalent, Inc.
10 - ``BPF_MAP_TYPE_HASH`` was introduced in kernel version 3.19
11 - ``BPF_MAP_TYPE_PERCPU_HASH`` was introduced in version 4.6
12 - Both ``BPF_MAP_TYPE_LRU_HASH`` and ``BPF_MAP_TYPE_LRU_PERCPU_HASH``
20 to the max_entries limit that you specify. Hash maps use pre-allocation
22 used to disable pre-allocation when it is too memory expensive.
25 CPU. The per-cpu values are stored internally in an array.
40 **BPF_F_NO_COMMON_LRU** Per-CPU LRU, global map Per-CPU LRU, per-cpu map
41 **!BPF_F_NO_COMMON_LRU** Global LRU, global map Global LRU, per-cpu map
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H A Dmap_bloom_filter.rst1 .. SPDX-License-Identifier: GPL-2.0-only
9 - ``BPF_MAP_TYPE_BLOOM_FILTER`` was introduced in kernel version 5.16
12 filters are a space-efficient probabilistic data structure used to
20 - push: adding an element to the map
21 - peek: determining whether an element is present in the map
28 - ``BPF_MAP_UPDATE_ELEM`` -> push
29 - ``BPF_MAP_LOOKUP_ELEM`` -> peek
52 ----------
57 .. code-block:: c
69 .. code-block:: c
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H A Dmap_lpm_trie.rst1 .. SPDX-License-Identifier: GPL-2.0-only
9 - ``BPF_MAP_TYPE_LPM_TRIE`` was introduced in kernel version 4.11
23 - For IPv4 addresses the data length is 4 bytes
24 - For IPv6 addresses the data length is 16 bytes
36 ----------
41 .. code-block:: c
58 .. code-block:: c
75 .. code-block:: c
84 ---------
92 .. code-block:: c
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/linux/block/
H A Ddisk-events.c1 // SPDX-License-Identifier: GPL-2.0
3 * Disk events - monitor disk events like media change and eject request.
16 int block; /* event blocking depth */ member
20 long poll_msecs; /* interval, -1 for default */
38 /* disable in-kernel polling by default */
43 struct disk_events *ev = disk->ev; in disk_events_poll_jiffies()
47 * If device-specific poll interval is set, always use it. If in disk_events_poll_jiffies()
50 if (ev->poll_msecs >= 0) in disk_events_poll_jiffies()
51 intv_msecs = ev->poll_msecs; in disk_events_poll_jiffies()
52 else if (disk->event_flags & DISK_EVENT_FLAG_POLL) in disk_events_poll_jiffies()
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/linux/arch/nios2/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
57 allocated as a single contiguous block. This option allows
80 Nios II CPUs cannot fetch/store data which is not bus aligned,
81 i.e., a 2 or 4 byte fetch must start at an address divisible by
82 2 or 4. Any non-aligned load/store instructions will be trapped and
99 some command-line options at build time by entering them here. In
120 bool "Passed kernel command line from u-boot"
122 Use bootargs env variable from u-boot for kernel command line.
/linux/kernel/futex/
H A Dcore.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * PI-futex support started by Ingo Molnar and Thomas Gleixner
23 * Requeue-PI support by Darren Hart <dvhltc@us.ibm.com>
29 * Kirkwood for proof-of-concept implementation.
40 #include <linux/fault-inject.h>
99 debugfs_create_bool("ignore-private", mode, dir, in fail_futex_debugfs()
111 * futex_hash - Return the hash bucket in the global hash
120 key->both.offset); in futex_hash()
122 return &futex_queues[hash & (futex_hashsize - 1)]; in futex_hash()
127 * futex_setup_timer - set up the sleeping hrtimer.
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/linux/include/trace/events/
H A Dafs.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
22 afs_FS_FetchData = 130, /* AFS Fetch file data */
23 afs_FS_FetchACL = 131, /* AFS Fetch file ACL */
24 afs_FS_FetchStatus = 132, /* AFS Fetch file status */
42 afs_FS_InlineBulkStatus = 65536, /* AFS Fetch multiple file statuses with errors */
43 afs_FS_FetchData64 = 65537, /* AFS Fetch file data */
48 yfs_FS_FetchData = 130, /* YFS Fetch file data */
49 yfs_FS_FetchACL = 64131, /* YFS Fetch file ACL */
50 yfs_FS_FetchStatus = 64132, /* YFS Fetch file status */
72 yfs_FS_InlineBulkStatus = 64536, /* YFS Fetch multiple file statuses with errors */
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/linux/arch/sparc/include/asm/
H A Dchafsr.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 * ch --> cheetah
10 * ch+ --> cheetah plus
11 * jp --> jalapeno
15 * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only.
33 /* Hardware corrected E-cache Tag ECC error */
38 /* SW handled correctable E-cache Tag ECC error */
43 /* Uncorrectable E-cache Tag ECC error */
65 * 64-byte system bus transaction. Only the first ECC error in a 16-byte
66 * subunit will be logged. All errors in subsequent 16-byte subunits
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/linux/arch/x86/include/asm/
H A Dtrap_pf.h1 /* SPDX-License-Identifier: GPL-2.0 */
12 * bit 2 == 0: kernel-mode access 1: user-mode access
14 * bit 4 == 1: fault was an instruction fetch
15 * bit 5 == 1: protection keys block access
17 * bit 15 == 1: SGX MMU page-fault
/linux/drivers/md/dm-vdo/
H A Drepair.c1 // SPDX-License-Identifier: GPL-2.0-only
12 #include "memory-alloc.h"
15 #include "block-map.h"
19 #include "int-map.h"
20 #include "io-submitter.h"
21 #include "recovery-journal.h"
22 #include "slab-depot.h"
25 #include "wait-queue.h"
28 * An explicitly numbered block mapping. Numbering the mappings allows them to be sorted by logical
29 * block number during repair while still preserving the relative order of journal entries with
[all …]
H A Dstatistics.h1 /* SPDX-License-Identifier: GPL-2.0-only */
20 /* The number of times since loading that a slab has been re-opened */
27 * allow the number of buffered, in-memory items and the number of in-flight,
42 /* Number of times the on-disk journal was full */
52 /** The statistics for the compressed block packer. */
64 /* Number of times the on-disk journal was full */
68 /* Number of times an entry was added over the block threshold */
70 /* Number of times a tail block was written */
88 /** The statistics for the block map. */
122 /* number of gets that have to fetch */
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/linux/drivers/staging/greybus/
H A Dfw-download.c1 // SPDX-License-Identifier: GPL-2.0
18 /* Timeout, in jiffies, within which fetch or release firmware must be called */
48 dev_dbg(fw_req->fw_download->parent, "firmware %s released\n", in fw_req_release()
49 fw_req->name); in fw_req_release()
51 release_firmware(fw_req->fw); in fw_req_release()
54 * The request timed out and the module may send a fetch-fw or in fw_req_release()
55 * release-fw request later. Lets block the id we allocated for this in fw_req_release()
56 * request, so that the AP doesn't refer to a later fw-request (with in fw_req_release()
57 * same firmware_id) for the old timedout fw-request. in fw_req_release()
65 if (!fw_req->timedout) in fw_req_release()
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/linux/arch/mips/include/asm/octeon/
H A Dcvmx-asm.h7 * Copyright (c) 2003-2008 Cavium Networks
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 #include <asm/octeon/octeon-model.h>
54 * errata Core-401. This can cause a single syncw to not enforce
87 * CVMX_PREPARE_FOR_STORE makes each byte of the block unpredictable
90 * unpredictable, but may also change again - up until the point when one
98 * its dirty bit for a block. Basically, SW is telling HW that the
99 * current version of the block will not be used.
120 /* fetch and lock the state. */
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/linux/drivers/crypto/intel/keembay/
H A Docs-aes.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2018-2020 Intel Corporation
8 #include <linux/dma-mapping.h>
20 #include "ocs-aes.h"
131 * 11-bit value, but it is actually 10-bits.
136 * During CCM decrypt, the OCS block needs to finish processing the ciphertext
137 * before the tag is written. For 128-bit mode this required delay is 28 OCS
138 * clock cycles. For 256-bit mode it is 36 OCS clock cycles.
156 * ------------ ---------
158 * 1 ... 15-L Nonce N
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/linux/tools/perf/pmu-events/arch/powerpc/power9/
H A Dother.json15 "BriefDescription": "Demand Instruction fetch request"
65 "BriefDescription": "Read-write data cache collisions"
90 "BriefDescription": "D-cache invalidates sent over the reload bus to the core"
95 …ruction cache was reloaded from the local chip's Memory due to an instruction fetch (not prefetch)"
200 "BriefDescription": "Read-write data cache collisions"
280 …-word boundary, which causes it to require an additional slice than than what normally would be re…
300 "BriefDescription": "I-cache Invalidates sent over the realod bus to the core"
395 …-word boundary, which causes it to require an additional slice than than what normally would be re…
430 "BriefDescription": "TM Load (fav or non-fav) ran into conflict (failed)"
450 …"BriefDescription": "A TM-ineligible instruction tries to execute inside a transaction and the LSU…
[all …]
/linux/include/linux/dma/
H A Dsprd-dma.h1 /* SPDX-License-Identifier: GPL-2.0 */
15 * The Spreadtrum DMA controller supports channel 2-stage tansfer, that means
22 * To support 2-stage tansfer, we must configure the channel mode and trigger
27 * enum sprd_dma_chn_mode: define the DMA channel mode for 2-stage transfer
29 * support the 2-stage transfer.
35 * Now the DMA controller can supports 2 groups 2-stage transfer.
46 * enum sprd_dma_trg_mode: define the DMA channel trigger mode for 2-stage
52 * automatically once the source channel's block request is done.
56 * automatically once the source channel's link-list request is done.
69 * @SPRD_DMA_BLK_REQ: block request mode
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/linux/arch/arc/include/asm/
H A Djump_label.h1 /* SPDX-License-Identifier: GPL-2.0 */
20 * 16-bit NOP_S if this is required.
22 * It's enough that our 32-bit instruction don't cross L1 cache line boundary /
23 * L1 I$ fetch block boundary which can be achieved by using
/linux/lib/
H A Dtextsearch.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * both linear and non-linear data. Individual search algorithms are
21 * .. code-block:: none
24 * +----------------+
25 * | finish()|<--------------(6)-----------------+
26 * |get_next_block()|<--------------(5)---------------+ |
28 * | | +------------------------------+
30 * | | +------------------------------+
32 * | | +---------------+ (2) (4) (8)
33 * | (1)|----->| prepare() |---+ | |
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/linux/tools/perf/pmu-events/arch/x86/grandridge/
H A Dgrr-metrics.json4 "MetricExpr": "cstate_core@c1\\-residency@ / TSC",
11 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
18 "MetricExpr": "cstate_module@c6\\-residency@ / TSC",
25 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
82 …ed page walks (for 2 megabyte and 4 megabyte page sizes) caused by a code fetch to the total numbe…
85 …ed page walks (for 2 megabyte and 4 megabyte page sizes) caused by a code fetch to the total numbe…
89 …o of number of completed page walks (for all page sizes) caused by a code fetch to the total numbe…
92 …o of number of completed page walks (for all page sizes) caused by a code fetch to the total numbe…
169 "MetricExpr": "((msr@aperf@ - cycles) / msr@aperf@ if msr@smi@ > 0 else 0)",
317 "BriefDescription": "Instructions per FP Arithmetic AVX/SSE 128-bit instruction",
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