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/linux-6.14.4/Documentation/filesystems/
Drelay.rst1 .. SPDX-License-Identifier: GPL-2.0
9 to userspace via user-defined 'relay channels'.
11 A 'relay channel' is a kernel->user data relay mechanism implemented
12 as a set of per-cpu kernel buffers ('channel buffers'), each
13 represented as a regular file ('relay file') in user space. Kernel
16 buffer. User space applications mmap() or read() from the relay files
25 filtering - this also is left to the kernel client. The purpose is to
30 functions in the relay interface code - please see that for details.
36 sub-buffers. Messages are written to the first sub-buffer until it is
38 the next (if available). Messages are never split across sub-buffers.
[all …]
/linux-6.14.4/Documentation/admin-guide/media/
Dfimc.rst1 .. SPDX-License-Identifier: GPL-2.0
8 Copyright |copy| 2012 - 2013 Samsung Electronics Co., Ltd.
12 space converter, image resizer and rotator. It's also capable of capturing
17 drivers/media/platform/samsung/exynos4-is directory.
20 --------------
22 S5PC100 (mem-to-mem only), S5PV210, Exynos4210
25 ------------------
27 - camera parallel interface capture (ITU-R.BT601/565);
28 - camera serial interface capture (MIPI-CSI2);
29 - memory-to-memory processing (color space conversion, scaling, mirror
[all …]
/linux-6.14.4/Documentation/userspace-api/media/v4l/
Dpixfmt-sdr-pcu20be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU20BE:
9 Planar complex unsigned 20-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
17 32 bit space. The remaining unused bits within the 32 bit space will be
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
31 - Byte B0
[all …]
Dpixfmt-sdr-pcu18be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU18BE:
9 Planar complex unsigned 18-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
17 32 bit space. The remaining unused bits within the 32 bit space will be
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
31 - Byte B0
[all …]
Dpixfmt-sdr-pcu16be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU16BE:
9 Planar complex unsigned 16-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
17 32 bit space. The remaining unused bits within the 32 bit space will be
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
31 - Byte B0
[all …]
Dpixfmt-sdr-cs14le.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-CS14LE:
9 Complex signed 14-bit little endian IQ sample
16 number consist two parts, called In-phase and Quadrature (IQ). Both I
19 space with unused high bits padded with 0.
25 .. flat-table::
26 :header-rows: 0
27 :stub-columns: 0
29 * - start + 0:
30 - I'\ :sub:`0[7:0]`
[all …]
/linux-6.14.4/Documentation/devicetree/bindings/pci/
Dsnps,dw-pcie-common.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/snps,dw-pcie-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jingoo Han <[email protected]>
11 - Gustavo Pimentel <[email protected]>
22 DWC PCIe CSR space is normally accessed over the dedicated Data Bus
23 Interface - DBI. In accordance with the reference manual the register
24 configuration space belongs to the Configuration-Dependent Module (CDM)
25 and is split up into several sub-parts Standard PCIe configuration
[all …]
Dralink,rt3883-pci.txt7 - compatible: must be "ralink,rt3883-pci"
9 - reg: specifies the physical base address of the controller and
12 - #address-cells: specifies the number of cells needed to encode an
15 - #size-cells: specifies the number of cells used to represent the size
18 - ranges: specifies the translation between child address space and parent
19 address space
23 - status: indicates the operational status of the device.
28 The main node must have two child nodes which describes the built-in
35 - interrupt-controller: identifies the node as an interrupt controller
37 - #address-cells: specifies the number of cells needed to encode an
[all …]
/linux-6.14.4/Documentation/netlink/
Dnetlink-raw.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/netlink-raw.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
21 required: [ name, doc, attribute-sets, operations ]
31 enum: [ netlink-raw ] # Trim
32 # Start netlink-raw
34 description: Protocol number to use for netlink-raw
[all …]
Dgenetlink.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
[all …]
/linux-6.14.4/Documentation/devicetree/bindings/powerpc/fsl/
Draideng.txt3 RAID Engine nodes are defined to describe on-chip RAID accelerators. Each RAID
11 - compatible: Should contain "fsl,raideng-v1.0" as the value
15 - reg: offset and length of the register set for the device
16 - ranges: standard ranges property specifying the translation
17 between child address space and parent address space
22 compatible = "fsl,raideng-v1.0";
23 #address-cells = <1>;
24 #size-cells = <1>;
30 There must be a sub-node for each job queue present in RAID Engine
31 This node must be a sub-node of the main RAID Engine node
[all …]
/linux-6.14.4/tools/testing/selftests/drivers/net/hw/
Dethtool_lib.sh2 # SPDX-License-Identifier: GPL-2.0
6 cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \
7 {sub(/,$/, "") \
8 sub(/ETHTOOL_LINK_MODE_/,"") \
9 sub(/_BIT/,"") \
10 sub(/_Full/,"/Full") \
11 sub(/_Half/,"/Half");\
20 local out=$(ethtool -s $cmd 2>&1 | wc -l)
29 local -a linkmodes_params
39 local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver))
[all …]
/linux-6.14.4/arch/x86/lib/
Dcopy_user_uncached_64.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2023 Linus Torvalds <torvalds@linux-foundation.org>
11 * copy_user_nocache - Uncached memory copy with exception handling
13 * This copies from user space into kernel space, but the kernel
14 * space accesses can take a machine check exception, so they too
17 * Note: only 32-bit and 64-bit stores have non-temporal versions,
30 /* If destination is not 7-byte aligned, we'll have to align it */
59 sub $64,%edx
66 * just try the non-unrolled loop.
106 sub $8,%edx
[all …]
/linux-6.14.4/lib/zlib_inflate/
Dinftrees.c1 /* inftrees.c -- generate Huffman trees for efficient decoding
2 * Copyright (C) 1995-2005 Mark Adler
13 The code lengths are lens[0..codes-1]. The result starts at *table,
14 whose indices are 0..2^bits-1. work is a writable array of at least
17 -1 is an invalid code, and +1 means that ENOUGH isn't enough. table
31 unsigned drop; /* code bits to drop for sub-table */ in zlib_inflate_table()
40 code *next; /* next available space in table */ in zlib_inflate_table()
63 code lengths are lens[0..codes-1]. Each length corresponds to the in zlib_inflate_table()
64 symbols 0..codes-1. The Huffman code is generated by first sorting the in zlib_inflate_table()
82 table. The sorted table is work[], with that space being provided by in zlib_inflate_table()
[all …]
/linux-6.14.4/Documentation/devicetree/bindings/bus/
Domap-ocp2scp.txt1 * OMAP OCP2SCP - ocp interface to scp interface
4 - compatible : Should be "ti,am437x-ocp2scp" for AM437x processor
5 Should be "ti,omap-ocp2scp" for all others
6 - reg : Address and length of the register set for the device
7 - #address-cells, #size-cells : Must be present if the device has sub-nodes
8 - ranges : the child address space are mapped 1:1 onto the parent address space
9 - ti,hwmods : must be "ocp2scp_usb_phy"
11 Sub-nodes:
12 All the devices connected to ocp2scp are described using sub-node to ocp2scp
15 compatible = "ti,omap-ocp2scp";
[all …]
/linux-6.14.4/Documentation/virt/hyperv/
Dhibernation.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ----------
9 Hibernation is sometimes called suspend-to-disk, as it writes a memory
14 Documentation/admin-guide/pm/sleep-states.rst.
25 appropriate arguments. This functionality may be wrapped by user space
30 ---------------------------------------
31 Linux guests on Hyper-V can also be hibernated, in which case the
32 hardware is the virtual hardware provided by Hyper-V to the guest VM.
34 the underlying Hyper-V host continue to run normally. While the
35 underlying Windows Hyper-V and physical hardware on which it is
[all …]
/linux-6.14.4/Documentation/userspace-api/netlink/
Dspecs.rst1 .. SPDX-License-Identifier: BSD-3-Clause
9 separating Netlink parsing from user space logic and minimize the amount of
17 - the C uAPI header
18 …- documentation of the protocol as a ReST file - see :ref:`Documentation/networking/netlink_spec/i…
19 - policy tables for input attribute validation
20 - operation tables
25 See :doc:`intro-specs` for a practical starting guide.
28 ``((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)``
29 to allow for easy adoption in user space code.
40 - ``genetlink`` - most streamlined, should be used by all new families
[all …]
Dgenetlink-legacy.rst1 .. SPDX-License-Identifier: BSD-3-Clause
9 the ``genetlink-legacy`` protocol level.
15 -------
29 --------------------
31 New Netlink families should use ``multi-attr`` to define arrays.
35 For reference the ``multi-attr`` array may look like this::
37 [ARRAY-ATTR]
41 [SOME-OTHER-ATTR]
42 [ARRAY-ATTR]
47 where ``ARRAY-ATTR`` is the array entry type.
[all …]
Dnetlink-raw.rst1 .. SPDX-License-Identifier: BSD-3-Clause
8 families such as ``NETLINK_ROUTE`` which use the ``netlink-raw`` protocol
14 The netlink-raw schema extends the :doc:`genetlink-legacy <genetlink-legacy>`
17 information. The raw netlink families also make use of type-specific
18 sub-messages.
21 -------
29 .. code-block:: yaml
31 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
33 name: rt-addr
34 protocol: netlink-raw
[all …]
/linux-6.14.4/arch/arm/mm/
Dcache-v7m.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/mm/cache-v7m.S
5 * Based on linux/arch/arm/mm/cache-v7.S
20 #include "proc-macros.S"
22 .arch armv7-m
132 and r3, r1, r0, lsr #3 @ NumWays - 1
140 1: sub r2, r2, #1 @ NumSets--
142 2: subs r3, r3, #1 @ Temp--
158 * Flush the whole I-cache.
161 * r0 - set to 0
[all …]
Dcache-v7.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/mm/cache-v7.S
16 #include <asm/hardware/cache-b15-rac.h>
18 #include "proc-macros.S"
20 .arch armv7-a
52 mov r3, r3, lsl r1 @ NumWays-1 shifted into bits [31:...]
65 subs r0, r0, #1 @ Set--
67 subs r3, r3, r1 @ Way--
69 mrc p15, 1, r0, c0, c0, 0 @ re-read cache geometry from CCSIDR
79 * Flush the whole I-cache.
[all …]
/linux-6.14.4/drivers/gpu/drm/msm/disp/dpu1/
Ddpu_hw_catalog.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
4 * Copyright (c) 2015-2018, 2020 The Linux Foundation. All rights reserved.
52 * SSPP sub-blocks/features
54 …* @DPU_SSPP_SCALER_QSEED3_COMPATIBLE, QSEED3-compatible alogorithm support (includes QSEED3, QSEE…
56 * @DPU_SSPP_CSC, Support of Color space converion
57 * @DPU_SSPP_CSC_10BIT, Support of 10-bit Color space conversion
60 * @DPU_SSPP_QOS_8LVL, SSPP support 8-level QoS control
90 * MIXER sub-blocks/features
92 * @DPU_MIXER_SOURCESPLIT Layer mixer supports source-split configuration
[all …]
/linux-6.14.4/Documentation/devicetree/bindings/leds/
Dleds-ns2.txt1 Binding for dual-GPIO LED found on Network Space v2 (and parents).
4 - compatible: "lacie,ns2-leds".
6 Each LED is represented as a sub-node of the ns2-leds device.
8 Required sub-node properties:
9 - cmd-gpio: Command LED GPIO. See OF device-tree GPIO specification.
10 - slow-gpio: Slow LED GPIO. See OF device-tree GPIO specification.
11 - modes-map: A mapping between LED modes (off, on or SATA activity blinking) and
12 the corresponding cmd-gpio/slow-gpio values. All the GPIO values combinations
15 Optional sub-node properties:
16 - label: Name for this LED. If omitted, the label is taken from the node name.
[all …]
/linux-6.14.4/net/wireless/
Dwext-priv.c4 * Authors : Jean Tourrilhes - HPL - <[email protected]>
5 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
22 if ((dev->wireless_handlers->num_private_args == 0) || in iw_handler_get_private()
23 (dev->wireless_handlers->private_args == NULL)) in iw_handler_get_private()
24 return -EOPNOTSUPP; in iw_handler_get_private()
27 if (wrqu->data.length < dev->wireless_handlers->num_private_args) { in iw_handler_get_private()
28 /* User space can't know in advance how large the buffer in iw_handler_get_private()
31 wrqu->data.length = dev->wireless_handlers->num_private_args; in iw_handler_get_private()
32 return -E2BIG; in iw_handler_get_private()
36 wrqu->data.length = dev->wireless_handlers->num_private_args; in iw_handler_get_private()
[all …]
/linux-6.14.4/Documentation/devicetree/bindings/usb/
Ddwc3-st.txt3 This file documents the parameters for the dwc3-st driver.
8 - compatible : must be "st,stih407-dwc3"
9 - reg : glue logic base address and USB syscfg ctrl register offset
10 - reg-names : should be "reg-glue" and "syscfg-reg"
11 - st,syscon : should be phandle to system configuration node which
13 - resets : list of phandle and reset specifier pairs. There should be two entries, one
15 - reset-names : list of reset signal names. Names should be "powerdown" and "softreset"
16 See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
19 - #address-cells, #size-cells : should be '1' if the device has sub-nodes
22 - pinctl-names : A pinctrl state named "default" must be defined
[all …]

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