| /linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | rockchip,rk3399-dmc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/rockchip,rk3399-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Brian Norris <briannorris@chromium.org>
15 - rockchip,rk3399-dmc
17 devfreq-events:
26 clock-names:
28 - const: dmc_clk
30 operating-points-v2: true
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| /linux/tools/testing/selftests/bpf/ |
| H A D | bpf_experimental.h | 16 * The 'local_type_id' parameter must be a known constant.
17 * The 'meta' parameter is rewritten by the verifier, no need for BPF
32 * The 'meta' parameter is rewritten by the verifier, no need for BPF
44 * non-owning reference input into an owning reference in the process.
46 * The 'meta' parameter is rewritten by the verifier, no need for BPF
63 * -EINVAL if the node wasn't added because it's already in a list
79 * -EINVAL if the node wasn't added because it's already in a list
111 * Add 'node' to rbtree with root 'root' using comparator 'less'
117 * -EINVAL if the node wasn't added because it's already in a tree
120 bool (less)(struct bpf_rb_node *a, const struct bpf_rb_node *b),
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| /linux/drivers/usb/dwc3/ |
| H A D | gadget.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * gadget.h - DesignWare USB3 DRD Gadget Header
5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
20 #define gadget_to_dwc(g) (dev_get_platdata(&g->dev))
22 /* DEPCFG parameter 1 */
35 /* DEPCFG parameter 0 */
48 /* DEPXFERCFG parameter 0 */
52 #define DWC3_DEFAULT_U1_DEV_EXIT_LAT 0x0A /* Less then 10 microsec */
55 #define DWC3_DEFAULT_U2_DEV_EXIT_LAT 0x1FF /* Less then 511 microsec */
59 /* -------------------------------------------------------------------------- */
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| /linux/Documentation/netlabel/ |
| H A D | draft-ietf-cipso-ipsecurity-01.txt | 27 Please check the I-D abstract listing contained in each Internet Draft
46 mandatory access controls and multi-level security. These systems are
88 once in a datagram. All multi-octet fields in the option are defined to be
91 +----------+----------+------//------+-----------//---------+
93 +----------+----------+------//------+-----------//---------+
124 corresponding ASCII representations. Non-related groups of systems may
148 actual security information to be passed. All multi-octet fields in a tag
171 +----------+----------+--------//--------+
173 +----------+----------+--------//--------+
207 This is referred to as the "bit-mapped" tag type. Tag type 1 is included
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| /linux/Documentation/admin-guide/media/ |
| H A D | philips.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 E-mail: webcam@smcc.demon.nl Last updated: 2004-01-19
30 * Samsung MPC-C10
31 * Samsung MPC-C30
33 * AME CU-001
34 * Visionite VCS-UM100
35 * Visionite VCS-UC300
40 framerates; in addition the webcam uses less bandwidth on the USB bus (handy
46 the latter, since it makes troubleshooting a lot easier. The built-in
50 camera; some programs depend on a particular image-size or -format and
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| /linux/include/linux/ |
| H A D | dtlk.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
28 bit goes zero 2-3 usec after
29 writing, and goes 1 again 180-190
32 indicates that less than 300 free
37 indicates that less than 300 bytes
56 data buffer has less than 30 bytes
67 unsigned short serial_number; /* 0-7Fh:0-7Fh */
70 unsigned char punc_level; /* nB; 0-7 */
71 unsigned char formant_freq; /* nF; 0-9 */
72 unsigned char pitch; /* nP; 0-99 */
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| H A D | zstd_lib.h | 1 /* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
6 * This source code is licensed under both the BSD-style license (found in the
9 * You may select, at your option, one of the above-listed licenses.
40 * typically with -Wno-deprecated-declarations for gcc or _CRT_SECURE_NO_WARNINGS in Visual.
61 real-time compression scenarios at zlib-level and better compression ratios.
62 The zstd compression library provides in-memory compression and decompression
66 which is currently 22. Levels >= 20, labeled `--ultra`, should be used with
72 - a single step (described as Simple API)
73 - a single step, reusing a context (described as Explicit context)
74 - unbounded multiple steps (described as Streaming compression)
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| H A D | zlib.h | 1 /* zlib.h -- interface of the 'zlib' general purpose compression library
3 Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
5 This software is provided 'as-is', without any express or implied
21 Jean-loup Gailly Mark Adler
53 The 'zlib' compression library provides in-memory compression and
65 The compressed data format used by default by the in-memory functions is
73 and on communications channels. The gzip format was designed for single-
113 parameter for calls of zalloc and zfree. This can be useful for custom
118 If zlib is used in a multi-threaded application, zalloc and zfree must be
121 On 16-bit systems, the functions zalloc and zfree must be able to allocate
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| /linux/drivers/accessibility/speakup/ |
| H A D | speakup_dtlk.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* speakup_dtlk.h - header file for speakups DoubleTalk driver. */
23 * bit goes zero 2-3 usec after
24 * writing, and goes 1 again 180-190
28 * indicates that less than 300 bytes
34 * indicates that less than 300 bytes
42 u_short serial_number; /* 0-7Fh:0-7Fh */
45 u_char punc_level; /* nB; 0-7 */
46 u_char formant_freq; /* nF; 0-9 */
47 u_char pitch; /* nP; 0-99 */
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| /linux/lib/842/ |
| H A D | 842.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
14 * to a previously-written number of data bytes to copy to the output buffer.
16 * The template code is a 5-bit value. This code indicates what to do with
24 * Any row with less than 4 actions is padded with noop actions, indicated by
32 * corresponding arg is an index parameter that points to, respectively, a 2,
40 * bytes ((2^8 = 256) * 8 bytes). Think of it as a kind-of ring buffer for
61 * 0x1d as a special "short data" template code, to represent less than 8 bytes
66 * compressed buffers containing this sw-only template will be rejected by
68 * library. The 842 software compression module includes a parameter to
69 * disable using this sw-only "short data" template, and instead simply
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| /linux/Documentation/virt/kvm/ |
| H A D | halt-polling.rst | 1 .. SPDX-License-Identifier: GPL-2.0
16 the order of a few micro-seconds, although performance benefits are workload
27 The powerpc kvm-hv specific case is implemented in:
39 kvm_vcpu->halt_poll_ns
41 or in the case of powerpc kvm-hv, in the vcore struct:
43 kvmppc_vcore->halt_poll_ns
50 two options, either the polling interval and total block time[0] were less than
54 In the event that both the polling interval and total block time were less than
66 shrink_halt_poll_ns() and is divided by the module parameter
86 arch/powerpc/kvm/book3s_hv.c in the powerpc kvm-hv case.
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| /linux/drivers/mtd/ubi/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "Enable UBI - Unsorted block images"
6 UBI is a software layer above MTD layer which admits use of LVM-like
10 (www.linux-mtd.infradead.org).
15 int "UBI wear-leveling threshold"
19 This parameter defines the maximum difference between the highest
26 other flashes which have eraseblock life-cycle 100000 or more.
28 life-cycle less than 10000, the threshold should be lessened (e.g.,
44 as "1024 * (1 - MinNVB / MaxNVB)", which gives 20 for most NANDs
55 This option can be overridden by the "mtd=" UBI module parameter or
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| /linux/Documentation/driver-api/usb/ |
| H A D | URB.rst | 1 .. _usb-urb:
6 :Revised: 2000-Dec-05
7 :Again: 2002-Jul-06
8 :Again: 2005-Sep-19
9 :Again: 2017-Mar-29
14 The USB subsystem now has a substantial section at :ref:`usb-hostside-api`
26 - An URB consists of all relevant information to execute any USB transaction
29 - Execution of an URB is inherently an asynchronous operation, i.e. the
33 - Transfers for one URB can be canceled with :c:func:`usb_unlink_urb`
36 - Each URB has a completion handler, which is called after the action
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| /linux/drivers/media/usb/stk1160/ |
| H A D | stk1160-reg.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
6 * <elezegarcia--a.t--gmail.com>
10 * <rmthomas--a.t--sciolus.org>
19 /* Power-on Strapping Data */
39 * Bit 0 - Horizontal Decimation Control
42 * Bit 1 - Decimates Half or More Column
43 * 0 Decimates less than half from original column,
47 * Bit 2 - Vertical Decimation Control
50 * Bit 3 - Vertical Greater or Equal to Half
51 * 0 Decimates less than half from original row,
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| /linux/drivers/net/can/dev/ |
| H A D | bittiming.c | 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (C) 2005 Marc Kleine-Budde, Pengutronix
4 * Copyright (C) 2008-2009 Wolfgang Grandegger <wg@grandegger.com>
11 if (bt->sjw) in can_sjw_set_default()
15 bt->sjw = max(1U, min(bt->phase_seg1, bt->phase_seg2 / 2)); in can_sjw_set_default()
21 if (bt->sjw > btc->sjw_max) { in can_sjw_check()
23 bt->sjw, btc->sjw_max); in can_sjw_check()
24 return -EINVAL; in can_sjw_check()
27 if (bt->sjw > bt->phase_seg1) { in can_sjw_check()
29 "sjw: %u greater than phase-seg1: %u", in can_sjw_check()
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| /linux/net/xfrm/ |
| H A D | xfrm_state_bpf.c | 1 // SPDX-License-Identifier: GPL-2.0-only
14 /* bpf_xfrm_state_opts - Options for XFRM state lookup helpers
17 * @error - Out parameter, set for any errors encountered
19 * -EINVAL - netns_id is less than -1
20 * -EINVAL - opts__sz isn't BPF_XFRM_STATE_OPTS_SZ
21 * -ENONET - No network namespace found for netns_id
22 * -ENOENT - No xfrm_state found
23 * @netns_id - Specify the network namespace for lookup
25 * BPF_F_CURRENT_NETNS (-1)
29 * @mark - XFRM mark to match on
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| /linux/arch/powerpc/platforms/8xx/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
33 bool "Embedded Planet EP88xC (a.k.a. CWH-PPC-885XN-VE)"
39 MPC885 Evaluation System and/or the CWH-PPC-885XN-VE.
56 menu "Freescale Ethernet driver platform-specific options"
76 Enable FEC2 to serve as 2-nd Ethernet channel. Note that SMC2
77 (often 2-nd UART) will not work if this is enabled.
83 Enable SCC3 to serve as 2-nd Ethernet channel. Note that SMC1
84 (often 1-nd UART) will not work if this is enabled.
106 with the GPIO API. If you say N here, the kernel needs less memory.
154 This microcode relocates SMC1 and SMC2 parameter RAMs at
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| /linux/Documentation/arch/m68k/ |
| H A D | kernel-options.rst | 9 Author: Roman.Hodek@informatik.uni-erlangen.de (Roman Hodek)
11 Update: jds@kom.auc.dk (Jes Sorensen) and faq@linux-m68k.org (Chris Lawrence)
58 ----------
76 /dev/ram: -> 0x0100 (initial ramdisk)
77 /dev/hda: -> 0x0300 (first IDE disk)
78 /dev/hdb: -> 0x0340 (second IDE disk)
79 /dev/sda: -> 0x0800 (first SCSI disk)
80 /dev/sdb: -> 0x0810 (second SCSI disk)
81 /dev/sdc: -> 0x0820 (third SCSI disk)
82 /dev/sdd: -> 0x0830 (forth SCSI disk)
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| /linux/Documentation/devicetree/bindings/eeprom/ |
| H A D | microchip,93lc46b.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cory Tusar <cory.tusar@pid1solutions.com>
15 - atmel,at93c46
16 - atmel,at93c46d
17 - atmel,at93c56
18 - atmel,at93c66
19 - eeprom-93xx46
20 - microchip,93lc46b
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| /linux/Documentation/admin-guide/device-mapper/ |
| H A D | dm-ebs.rst | 2 dm-ebs
17 ----------------
23 Full pathname to the underlying block-device,
24 or a "major:minor" device-number.
32 Optional parameter:
49 This presumes 2KiB logical blocksize on /dev/sda or less to work:
|
| /linux/Documentation/admin-guide/mm/ |
| H A D | zswap.rst | 10 dynamically allocated RAM-based memory pool. zswap basically trades CPU cycles
11 for potentially reduced swap I/O. This trade-off can also result in a
21 throttling by the hypervisor. This allows more work to get done with less
24 drastically reducing life-shortening writes.
65 achieved with a red-black tree per swap type. The swap offset is the search
79 * max_pool_percent - The maximum percentage of memory that the compressed
90 When the compressor parameter is changed at runtime, any existing compressed
96 Some of the pages in zswap are same-value filled pages (i.e. contents of the
97 page have same value or repetitive pattern). These pages include zero-filled
99 checked if it is a same-value filled page before compressing it. If true, the
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| H A D | transhuge.rst | 26 requiring larger clear-page copy-page in page faults which is a
48 Modern kernels support "multi-size THP" (mTHP), which introduces the
50 but smaller than traditional PMD-size (as described above), in
51 increments of a power-of-2 number of pages. mTHP can back anonymous
53 PTE-mapped, but in many cases can still provide similar benefits to
55 factor of e.g. 4, 8, 16, etc), but latency spikes are much less
56 prominent because the size of each page isn't as huge as the PMD-sized
57 variant and there is less memory to clear in each page fault. Some
60 and approporiately aligned. In this case, TLB misses will occur less
66 collapses sequences of basic pages into PMD-sized huge pages.
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| /linux/net/dccp/ccids/ |
| H A D | ccid3.h | |
| /linux/drivers/platform/x86/intel/speed_select_if/ |
| H A D | isst_if_mbox_pci.c | 1 // SPDX-License-Identifier: GPL-2.0
24 * The average time to complete mailbox commands is less than 40us. Most of
56 ret = -EBUSY; in isst_if_mbox_cmd()
71 mbox_cmd->req_data); in isst_if_mbox_cmd()
77 (mbox_cmd->parameter & GENMASK_ULL(13, 0)) << 16 | in isst_if_mbox_cmd()
78 (mbox_cmd->sub_command << 8) | in isst_if_mbox_cmd()
79 mbox_cmd->command; in isst_if_mbox_cmd()
95 ret = -EBUSY; in isst_if_mbox_cmd()
103 return -ENXIO; in isst_if_mbox_cmd()
109 mbox_cmd->resp_data = data; in isst_if_mbox_cmd()
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| /linux/fs/squashfs/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "SquashFS 4.0 - Squashed file system support"
7 Read-Only File System). Squashfs is a highly compressed read-only
16 Squashfs is intended for general read-only filesystem use, for
19 and tools are available from github.com/plougher/squashfs-tools.
88 decompression. Each one exhibits various trade-offs between
97 Traditionally Squashfs has used single-threaded decompression.
126 decompression is load-balanced across the cores.
130 bool "Add the mount parameter 'threads=' for squashfs"
159 reducinng performance in workloads like fio-based benchmarks.
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