| /Documentation/gpu/ |
| D | afbc.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
8 It provides fine-grained random access and minimizes the amount of
21 AFBC streams can contain several components - where a component
33 * Component 2: B
37 reside in the least-significant bits of the corresponding linear
42 * Component 0: R(8)
43 * Component 1: G(8)
44 * Component 2: B(8)
45 * Component 3: A(8)
49 * Component 0: R(8)
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| /Documentation/driver-api/media/drivers/ccs/ |
| D | ccs-regs.asc | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause
2 # Copyright (C) 2019--2020 Intel Corporation
5 # - f field LSB MSB rflags
6 # - e enum value # after a field
7 # - e enum value [LSB MSB]
8 # - b bool bit
9 # - l arg name min max elsize [discontig...]
12 # 8, 16, 32 register bits (default is 8)
20 module_revision_number_major 0x0002 8
21 frame_count 0x0005 8
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| /Documentation/userspace-api/media/v4l/ |
| D | metafmt-generic.rst | 1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
8 Generic line-based metadata formats
14 These generic line-based metadata formats define the memory layout of the data
17 .. _v4l2-meta-fmt-generic-8:
20 -----------------------
22 The V4L2_META_FMT_GENERIC_8 format is a plain 8-bit metadata format. This format
23 is used on CSI-2 for 8 bits per :term:`Data Unit`.
26 packed into one 16-bit Data Unit. Otherwise the 16 bits per pixel dataformat is
27 :ref:`V4L2_META_FMT_GENERIC_CSI2_16 <v4l2-meta-fmt-generic-csi2-16>`.
34 .. flat-table:: Sample 4x2 Metadata Frame
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| D | pixfmt-yuv-planar.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. planar-yuv:
12 - Semi-planar formats use two planes. The first plane is the luma plane and
16 - Fully planar formats use three planes to store the Y, Cb and Cr components
26 and applications that support the multi-planar API, described in
27 :ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
31 Semi-Planar YUV Formats
43 line stride. With horizontal subsampling by 2, the chroma line stride is equal
46 For non-contiguous formats, no constraints are enforced by the format on the
57 .. flat-table:: Overview of Semi-Planar YUV Formats
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| /Documentation/admin-guide/media/ |
| D | dvb_intro.rst | 1 .. SPDX-License-Identifier: GPL-2.0
12 structure of DVB-T cards are substantially similar to Analogue TV cards,
30 embedded within the modulated composite analogue signal -
38 signal encoded at a resolution of 768x576 24-bit color pixels over 25
39 frames per second - a fair amount of data is generated and must be
43 encoded and compressed form - similar to the form that is used in
46 The purpose of a simple budget digital TV card (DVB-T,C or S) is to
96 On this example, we're considering tuning into DVB-T channels in
115 The digital TV Scan utilities (like dvbv5-scan) have use a set of
116 compiled-in defaults for various countries and regions. Those are
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| D | qcom_camss.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 ------------
25 ----------------------------------
27 The Camera Subsystem hardware found on 8x16 / 8x96 processors and supported by
30 - 2 / 3 CSIPHY modules. They handle the Physical layer of the CSI2 receivers.
32 - 2 / 4 CSID (CSI Decoder) modules. They handle the Protocol and Application
36 - ISPIF (ISP Interface) module. Handles the routing of the data streams from
38 - 1 / 2 VFE (Video Front End) module(s). Contain a pipeline of image processing
48 -----------------------
52 - Input from camera sensor via CSIPHY;
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| /Documentation/admin-guide/device-mapper/ |
| D | dm-service-time.rst | 2 dm-service-time
5 dm-service-time is a path selector module for device-mapper targets,
10 of in-flight I/Os on a path with the performance value of the path.
12 in a path-group, and it can be specified as a table argument.
14 The path selector name is 'service-time'.
26 among all paths in the path-group.
27 The valid range is 0-100.
34 <status> <fail-count> <in-flight-size> <relative_throughput>
37 <fail-count>:
39 <in-flight-size>:
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| D | dm-queue-length.rst | 2 dm-queue-length
5 dm-queue-length is a path selector module for device-mapper targets,
6 which selects a path with the least number of in-flight I/Os.
7 The path selector name is 'queue-length'.
18 Status for each path: <status> <fail-count> <in-flight>
23 <fail-count>: The number of path failures.
24 <in-flight>: The number of in-flight I/Os on the path.
30 dm-queue-length increments/decrements 'in-flight' when an I/O is
32 dm-queue-length selects a path with the minimum 'in-flight'.
37 In case that 2 paths (sda and sdb) are used with repeat_count == 128.
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| /Documentation/devicetree/bindings/input/touchscreen/ |
| D | adi,ad7879.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7879(-1)/AD7889(-1) touchscreen interface (SPI/I2C)
10 - Frank Li <Frank.Li@nxp.com>
16 for I2C slave, use "adi,ad7879-1"
18 - adi,ad7879
19 - adi,ad7879-1
27 touchscreen-max-pressure:
31 adi,resistance-plate-x:
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| /Documentation/devicetree/bindings/leds/ |
| D | leds-lp55xx.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp55xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
27 - national,lp5521
28 - national,lp5523
29 - ti,lp55231
30 - ti,lp5562
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| /Documentation/filesystems/ext4/ |
| D | blocks.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 ------
8 integral power of 2. Blocks are in turn grouped into larger units called
12 pages). By default a filesystem can contain 2^32 blocks; if the '64bit'
13 feature is enabled, then a filesystem can have 2^64 blocks. The location
17 For 32-bit filesystems, limits are as follows:
19 .. list-table::
21 :header-rows: 1
23 * - Item
24 - 1KiB
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| /Documentation/tools/rtla/ |
| D | rtla-timerlat-top.rst | 2 rtla-timerlat-top
4 -------------------------------------------
6 -------------------------------------------
22 seem with the option **-T**.
35 **--aa-only** *us*
38 Print the auto-analysis if the system hits the stop tracing condition. This option
45 In the example below, the timerlat tracer is dispatched in cpus *1-23* in the
49 # timerlat -a 40 -c 1-23 -q
54 2 #12322 | 3 0 1 12 | 10 3 9 23
55 3 #12322 | 1 0 1 21 | 8 2 8 34
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| /Documentation/translations/zh_CN/core-api/ |
| D | packing.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
3 .. include:: ../disclaimer-zh_CN.rst
5 :Original: Documentation/core-api/packing.rst
22 --------
42 --------
46 - 将一个CPU可使用的数字打包到内存缓冲区中（具有硬件约束/特殊性）。
47 - 将内存缓冲区（具有硬件约束/特殊性）解压缩为一个CPU可使用的数字。
63 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
64 3 2 1 0
71 2. 如果设置了QUIRK_MSB_ON_THE_RIGHT，我们按如下方式操作：
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| /Documentation/devicetree/bindings/ptp/ |
| D | ptp-idtcm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/ptp/ptp-idtcm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Vincent Cheng <vincent.cheng.xh@renesas.com>
16 - idt,8a34000
17 - idt,8a34001
18 - idt,8a34002
19 - idt,8a34003
20 - idt,8a34004
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| /Documentation/devicetree/bindings/leds/backlight/ |
| D | lp855x-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lp855x-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Artur Weber <aweber.kernel@gmail.com>
15 - ti,lp8550
16 - ti,lp8551
17 - ti,lp8552
18 - ti,lp8553
19 - ti,lp8555
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| /Documentation/devicetree/bindings/media/ |
| D | ti,da850-vpif.txt | 2 ----------------------
12 - compatible: must be "ti,da850-vpif"
13 - reg: physical base address and length of the registers set for the device;
14 - interrupts: should contain IRQ line for the VPIF
18 VPIF has a 16-bit parallel bus input, supporting 2 8-bit channels or a
19 single 16-bit channel. It should contain one or two port child nodes
23 Documentation/devicetree/bindings/media/video-interfaces.txt.
25 Example using 2 8-bit input channels, one of which is connected to an
26 I2C-connected TVP5147 decoder:
29 compatible = "ti,da850-vpif";
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| /Documentation/trace/postprocess/ |
| D | trace-pagealloc-postprocess.pl | 4 # to extract some high-level information on what is going on. The accuracy of the parser
7 # Example usage: trace-pagealloc-postprocess.pl < /sys/kernel/tracing/trace_pipe
9 # --prepend-parent Report on the parent proc and PID
10 # --read-procstat If the trace lacks process info, get it from /proc
11 # --ignore-pid Aggregate processes of the same name together
20 use constant MM_PAGE_FREE => 2;
28 use constant STATE_PCPU_PAGES_DRAINED => 8;
31 # High-level events extrapolated from tracepoints
52 if ($current_time - 2 > $sigint_received) {
53 print "SIGINT received, report pending. Hit ctrl-c again to exit\n";
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| /Documentation/devicetree/bindings/media/i2c/ |
| D | tda1997x.txt | 1 Device-Tree bindings for the NXP TDA1997x HDMI receiver
6 - RGB 8bit per color (24 bits total): R[11:4] B[11:4] G[11:4]
7 - YUV444 8bit per color (24 bits total): Y[11:4] Cr[11:4] Cb[11:4]
8 - YUV422 semi-planar 8bit per component (16 bits total): Y[11:4] CbCr[11:4]
9 - YUV422 semi-planar 10bit per component (20 bits total): Y[11:2] CbCr[11:2]
10 - YUV422 semi-planar 12bit per component (24 bits total): - Y[11:0] CbCr[11:0]
11 - YUV422 BT656 8bit per component (8 bits total): YCbCr[11:4] (2-cycles)
12 - YUV422 BT656 10bit per component (10 bits total): YCbCr[11:2] (2-cycles)
13 - YUV422 BT656 12bit per component (12 bits total): YCbCr[11:0] (2-cycles)
16 - RGB 12bit per color (36 bits total): R[11:0] B[11:0] G[11:0]
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| /Documentation/gpu/amdgpu/ |
| D | dgpu-asic-info-table.csv | 2 AMD Radeon (TM) HD 8500M/ 8600M /M200 /M320 /M330 /M335 Series, HAINAN, --, 6, --, --
3 AMD Radeon HD 7800 /7900 /FireGL Series, TAHITI, DCE 6, 6, VCE 1 / UVD 3, --
4 AMD Radeon R7 (TM|HD) M265 /M370 /8500M /8600 /8700 /8700M, OLAND, DCE 6, 6, VCE 1 / UVD 3, --
5 AMD Radeon (TM) (HD|R7) 7800 /7970 /8800 /8970 /370/ Series, PITCAIRN, DCE 6, 6, VCE 1 / UVD 3, --
6 …|R7|R9|HD) E8860 /M360 /7700 /7800 /8800 /9000(M) /W4100 Series, VERDE, DCE 6, 6, VCE 1 / UVD 3, --
7 AMD Radeon HD M280X /M380 /7700 /8950 /W5100, BONAIRE, DCE 8, 7, VCE 2 / UVD 4.2, 1
8 AMD Radeon (R9|TM) 200 /390 /W8100 /W9100 Series, HAWAII, DCE 8, 7, VCE 2 / UVD 4.2, 1
9 AMD Radeon (TM) R(5|7) M315 /M340 /M360, TOPAZ, *, 8, --, 2
10 AMD Radeon (TM) R9 200 /380 /W7100 /S7150 /M390 /M395 Series, TONGA, DCE 10, 8, VCE 3 / UVD 5, 3
11 AMD Radeon (FirePro) (TM) R9 Fury Series, FIJI, DCE 10, 8, VCE 3 / UVD 6, 3
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| /Documentation/ABI/testing/ |
| D | sysfs-driver-toshiba_acpi | 1 What: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS{1900,620{0,7,8}}:00/kbd_backlight_mode
2 Date: June 8, 2014
8 * 0x1 -> FN-Z
9 * 0x2 -> AUTO (also called TIMER)
10 * 0x8 -> ON
11 * 0x10 -> OFF
14 parameters, kernel 3.15 only accepts the first two (FN-Z and
20 What: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS{1900,620{0,7,8}}:00/kbd_backlight_timeout
21 Date: June 8, 2014
26 valid values range from 0-60.
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| /Documentation/bpf/ |
| D | verifier.rst | 32 After kernel function call, R1-R5 are reset to unreadable and
35 Since R6-R9 are callee saved, their state is preserved across the call.
52 bpf_mov R2 = 2
65 bpf_ld R0 = *(u32 *)(R6 + 8)
67 intends to load a word from address R6 + 8 and store it into R0
69 that offset 8 of size 4 bytes can be accessed for reading, otherwise
72 stack bounds, which are [-MAX_BPF_STACK, 0). In this example offset is 8,
78 Classic BPF verifier does similar check with M[0-15] memory slots.
81 bpf_ld R0 = *(u32 *)(R10 - 4)
85 Though R10 is correct read-only register and has type PTR_TO_STACK
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| /Documentation/arch/powerpc/ |
| D | associativity.rst | 9 are represented as being members of a sub-grouping domain. This performance
17 Hypervisor indicates the type/form of associativity used via "ibm,architecture-vec-5 property".
18 Bit 0 of byte 5 in the "ibm,architecture-vec-5" property indicates usage of Form 0 or Form 1.
19 A value of 1 indicates the usage of Form 1 associativity. For Form 2 associativity
20 bit 2 of byte 5 in the "ibm,architecture-vec-5" property is used.
23 ------
27 ------
28 With Form 1 a combination of ibm,associativity-reference-points, and ibm,associativity
34 The “ibm,associativity-reference-points” property contains a list of one or more numbers
43 if they belong to the same higher-level domains. For mismatch at every higher
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| /Documentation/core-api/ |
| D | packing.rst | 6 -----------------
10 One can memory-map a pointer to a carefully crafted struct over the hardware
23 were performed byte-by-byte. Also the code can easily get cluttered, and the
24 high-level idea might get lost among the many bit shifts required.
25 Many drivers take the bit-shifting approach and then attempt to reduce the
30 ------------
32 This API deals with 2 basic operations:
34 - Packing a CPU-usable number into a memory buffer (with hardware
36 - Unpacking a memory buffer (which has hardware constraints/quirks)
37 into a CPU-usable number.
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| /Documentation/devicetree/bindings/sound/ |
| D | st,sta350.txt | 7 - compatible: "st,sta350"
8 - reg: the I2C address of the device for I2C
9 - reset-gpios: a GPIO spec for the reset pin. If specified, it will be
12 - power-down-gpios: a GPIO spec for the power down pin. If specified,
16 - vdd-dig-supply: regulator spec, providing 3.3V
17 - vdd-pll-supply: regulator spec, providing 3.3V
18 - vcc-supply: regulator spec, providing 5V - 26V
22 - st,output-conf: number, Selects the output configuration:
23 0: 2-channel (full-bridge) power, 2-channel data-out
24 1: 2 (half-bridge). 1 (full-bridge) on-board power
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| /Documentation/devicetree/bindings/pci/ |
| D | intel,ixp4xx-pci.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/intel,ixp4xx-pci.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
15 - $ref: /schemas/pci/pci-host-bridge.yaml#
20 - enum:
21 - intel,ixp42x-pci
22 - intel,ixp43x-pci
28 - description: IXP4xx-specific registers
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