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/Documentation/devicetree/bindings/display/
Dallwinner,sun4i-a10-display-backend.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-backend.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Allwinner A10 Display Engine Backend
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
14 The display engine backend exposes layers and sprites to the system.
19 - allwinner,sun4i-a10-display-backend
20 - allwinner,sun5i-a13-display-backend
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Dallwinner,sun4i-a10-display-engine.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-engine.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Allwinner A10 Display Engine Pipeline
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
14 The display engine pipeline (and its entry point, since it can be
15 either directly the backend or the frontend) is represented as an
18 The Allwinner A10 Display pipeline is composed of several components
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/Documentation/gpu/
Dxen-front.rst2 drm/xen-front Xen para-virtualized frontend driver
5 This frontend driver implements Xen para-virtualized display
6 according to the display protocol described at
9 Driver modes of operation in terms of display buffers used
12 .. kernel-doc:: drivers/gpu/drm/xen/xen_drm_front.h
13 :doc: Driver modes of operation in terms of display buffers used
16 ----------------------------------------
18 .. kernel-doc:: drivers/gpu/drm/xen/xen_drm_front.h
21 Buffers allocated by the backend
22 --------------------------------
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/Documentation/devicetree/bindings/display/mediatek/
Dmediatek,ethdr.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,ethdr.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chun-Kuang Hu <chunkuang.hu@kernel.org>
11 - Philipp Zabel <p.zabel@pengutronix.de>
15 designed for HDR video and graphics conversion in the external display path.
18 output the required HDR or SDR signal to the subsequent display path.
20 one video backend and a mixer. ETHDR has two DMA function blocks, DS and ADL.
21 These two function blocks read the pre-programmed registers from DRAM and
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/Documentation/devicetree/bindings/
Dincomplete-devices.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/incomplete-devices.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
16 Examples are devices using ACPI PRP0001 with non-updatable firmware/ACPI
17 tables or old PowerPC platforms without in-tree DTS.
21 un-approved compatible.
29 - description:
30 Rejected compatibles in Devicetree, but used in ACPI-based devices
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/Documentation/admin-guide/media/
Dimx.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ------------
11 display devices.
15 - Image DMA Controller (IDMAC)
16 - Camera Serial Interface (CSI)
17 - Image Converter (IC)
18 - Sensor Multi-FIFO Controller (SMFC)
19 - Image Rotator (IRT)
20 - Video De-Interlacing or Combining Block (VDIC)
24 display paths. During transfer, the IDMAC is also capable of vertical
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/Documentation/filesystems/caching/
Dfscache.rst1 .. SPDX-License-Identifier: GPL-2.0
13 FS-Cache mediates between cache backends (such as CacheFiles) and network
16 +---------+
17 | | +--------------+
18 | NFS |--+ | |
19 | | | +-->| CacheFS |
20 +---------+ | +----------+ | | /dev/hda5 |
21 | | | | +--------------+
22 +---------+ +-------------->| | |
23 | | +-------+ | |--+
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Dcachefiles.rst1 .. SPDX-License-Identifier: GPL-2.0
31 (*) On-demand Read.
37 CacheFiles is a caching backend that's meant to use as a cache a directory on
40 CacheFiles uses a userspace daemon to do some of the cache management - such as
49 CacheFiles creates a misc character device - "/dev/cachefiles" - that is used
58 space if necessary - see the "Cache Culling" section. This means it can be
71 - dnotify.
73 - extended attributes (xattrs).
75 - openat() and friends.
77 - bmap() support on files in the filesystem (FIBMAP ioctl).
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/Documentation/dev-tools/
Dkgdb.rst15 Kdb is simplistic shell-style interface which you can use on a system
22 kernel built-ins or in kernel modules if the code was built with
40 kgdb I/O modules compiled as built-ins or loadable kernel modules in the
46 - In order to enable compilation of kdb, you must first enable kgdb.
48 - The kgdb test compile options are described in the kgdb test suite
52 ------------------------------
55 :menuselection:`Kernel hacking --> Kernel debugging` and select
73 certain regions of the kernel's memory space as read-only. If kgdb
93 -----------------------------
108 If you want to use a PS/2-style keyboard with kdb, you would select
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/Documentation/filesystems/
Dproc.rst1 .. SPDX-License-Identifier: GPL-2.0
24 1.1 Process-Specific Subdirectories
36 3 Per-Process Parameters
37 3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
39 3.2 /proc/<pid>/oom_score - Display current oom-killer score
40 3.3 /proc/<pid>/io - Display the IO accounting fields
41 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
42 3.5 /proc/<pid>/mountinfo - Information about mounts
44 3.7 /proc/<pid>/task/<tid>/children - Information about task children
45 3.8 /proc/<pid>/fdinfo/<fd> - Information about opened file
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/Documentation/admin-guide/
Dkernel-parameters.txt16 force -- enable ACPI if default was off
17 on -- enable ACPI but allow fallback to DT [arm64,riscv64]
18 off -- disable ACPI if default was on
19 noirq -- do not use ACPI for IRQ routing
20 strict -- Be less tolerant of platforms that are not
22 rsdt -- prefer RSDT over (default) XSDT
23 copy_dsdt -- copy DSDT to memory
24 nospcr -- disable console in ACPI SPCR table as
41 If set to vendor, prefer vendor-specific driver
73 Documentation/firmware-guide/acpi/debug.rst for more information about
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