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/kernel/linux/linux-5.10/Documentation/userspace-api/media/
Dglossary.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
51 **Field-programmable Gate Array**
56 See https://en.wikipedia.org/wiki/Field-programmable_gate_array.
65 together make a larger user-facing functional peripheral. For
73 **Inter-Integrated Circuit**
75 A multi-master, multi-slave, packet switched, single-ended,
77 like sub-device hardware components.
79 See http://www.nxp.com/docs/en/user-guide/UM10204.pdf.
113 - :term:`CEC API`;
114 - :term:`Digital TV API`;
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/remoteproc/
Dti,k3-dsp-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,k3-dsp-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 The TI K3 family of SoCs usually have one or more TI DSP Core sub-systems
14 that are used to offload some of the processor-intensive tasks or algorithms,
17 These processor sub-systems usually contain additional sub-modules like
23 Each DSP Core sub-system is represented as a single DT node. Each node has a
29 - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
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Dti,keystone-rproc.txt5 sub-systems that are used to offload some of the processor-intensive tasks or
8 These processor sub-systems usually contain additional sub-modules like L1
15 Each DSP Core sub-system is represented as a single DT node, and should also
22 --------------------
25 - compatible: Should be one of the following,
26 "ti,k2hk-dsp" for DSPs on Keystone 2 66AK2H/K SoCs
27 "ti,k2l-dsp" for DSPs on Keystone 2 66AK2L SoCs
28 "ti,k2e-dsp" for DSPs on Keystone 2 66AK2E SoCs
29 "ti,k2g-dsp" for DSPs on Keystone 2 66AK2G SoCs
31 - reg: Should contain an entry for each value in 'reg-names'.
[all …]
Dti,omap-remoteproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,omap-remoteproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 The OMAP family of SoCs usually have one or more slave processor sub-systems
14 that are used to offload some of the processor-intensive tasks, or to manage
17 The processor cores in the sub-system are usually behind an IOMMU, and may
18 contain additional sub-modules like Internal RAM and/or ROMs, L1 and/or L2
21 The OMAP SoCs usually have a DSP processor sub-system and/or an IPU processor
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/kernel/linux/linux-5.10/Documentation/userspace-api/media/dvb/
Dfrontend.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
10 systems: Terrestrial, cable and Satellite. Currently, the following
11 delivery systems are supported:
13 - Terrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H,
16 - Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B)
18 - Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS
20 The Digital TV frontend controls several sub-devices including:
22 - Tuner
24 - Digital TV demodulator
26 - Low noise amplifier (LNA)
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Dfe_property_parameters.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
15 .. _DTV-UNDEFINED:
24 .. _DTV-TUNE:
33 .. _DTV-CLEAR:
42 .. _DTV-FREQUENCY:
51 #. For satellite delivery systems, the frequency is in kHz.
53 #. For cable and terrestrial delivery systems, the frequency is in
56 #. On most delivery systems, the frequency is the center frequency
57 of the transponder/channel. The exception is for ISDB-T, where
60 #. For ISDB-T, the channels are usually transmitted with an offset of
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/kernel/linux/linux-5.10/sound/hda/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
24 int "Pre-allocated buffer size for HD-audio driver"
29 Specifies the default pre-allocated buffer-size in kB for the
30 HD-audio driver. A larger buffer (e.g. 2048) is preferred
31 for systems using PulseAudio. The default 64 is chosen just
33 On x86 systems, the default is 2048 as a reasonable value for
34 most of modern systems.
36 Note that the pre-allocation size can be changed dynamically
37 via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.
/kernel/linux/linux-5.10/fs/ubifs/
Dshrinker.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2006-2008 Nokia Corporation.
19 * If the root of a TNC sub-tree is clean and old enough, then the children are
21 * dumps entire sub-trees.
23 * The age of znodes is just the time-stamp when they were last looked at.
27 * un-mounts, which is done by the 'ubifs_infos_lock' and 'c->umount_mutex'.
32 /* List of all UBIFS file-system instances */
49 * shrink_tnc - shrink TNC tree.
50 * @c: UBIFS file-system description object
64 ubifs_assert(c, mutex_is_locked(&c->umount_mutex)); in shrink_tnc()
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/
Dleds-powernv.txt1 Device Tree binding for LEDs on IBM Power Systems
2 -------------------------------------------------
5 - compatible : Should be "ibm,opal-v3-led".
6 - led-mode : Should be "lightpath" or "guidinglight".
9 form of a sub-node.
11 Required properties for the sub nodes:
12 - led-types : Supported LED types (attention/identify/fault) provided
18 compatible = "ibm,opal-v3-led";
19 led-mode = "lightpath";
21 U78C9.001.RST0027-P1-C1 {
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/kernel/linux/linux-5.10/net/tipc/
Dsubscr.c4 * Copyright (c) 2000-2017, Ericsson AB
5 * Copyright (c) 2005-2007, 2010-2013, Wind River Systems
41 static void tipc_sub_send_event(struct tipc_subscription *sub, in tipc_sub_send_event() argument
45 struct tipc_event *evt = &sub->evt; in tipc_sub_send_event()
47 if (sub->inactive) in tipc_sub_send_event()
54 tipc_topsrv_queue_evt(sub->net, sub->conid, event, evt); in tipc_sub_send_event()
58 * tipc_sub_check_overlap - test for subscription overlap with the
66 if (found_lower < seq->lower) in tipc_sub_check_overlap()
67 found_lower = seq->lower; in tipc_sub_check_overlap()
68 if (found_upper > seq->upper) in tipc_sub_check_overlap()
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/mtd/
Djedec,spi-nor.txt4 - #address-cells, #size-cells : Must be present if the device has sub-nodes
6 - compatible : May include a device-specific string consisting of the
9 Must also include "jedec,spi-nor" for any SPI NOR flash that can
53 m25p05-nonjedec
54 m25p10-nonjedec
55 m25p20-nonjedec
56 m25p40-nonjedec
57 m25p80-nonjedec
58 m25p16-nonjedec
59 m25p32-nonjedec
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Dcortina,gemini-flash.txt1 Flash device on Cortina Systems Gemini SoC
7 - compatible : must be "cortina,gemini-flash", "cfi-flash";
8 - reg : memory address for the flash chip
9 - syscon : must be a phandle to the system controller
10 - bank-width : width in bytes of flash interface, should be <2>
12 For the rest of the properties, see mtd-physmap.txt.
14 The device tree may optionally contain sub-nodes describing partitions of the
20 compatible = "cortina,gemini-flash", "cfi-flash";
23 bank-width = <2>;
/kernel/linux/linux-5.10/arch/x86/include/asm/xen/
Dcpuid.h2 * arch-x86/cpuid.h
24 * Copyright (c) 2007 Citrix Systems, Inc.
47 * EAX: Largest Xen-information leaf. All leaves up to an including @EAX
49 * EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification
60 * EBX-EDX: Reserved (currently all zeroes).
67 * EBX: Base address of Xen-specific MSRs.
78 * Sub-leaf 0: EAX: bit 0: emulated tsc
85 * Sub-leaf 1: EAX: tsc offset low part
87 * ECX: multiplicator for tsc->ns conversion
88 * EDX: shift amount for tsc->ns conversion
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/kernel/linux/linux-5.10/Documentation/hwmon/
Dibmpowernv.rst4 Supported systems:
11 -----------
22 the DT maps to an attribute file in 'sysfs'. The node exports unique 'sensor-id'
26 -----------
31 ----------------
36 fanX_fault - 0: No fail condition
37 - 1: Failing fan
44 sub-group. In POWER9, this attribute corresponds to
48 - 1: Enable
49 - 0: Disable
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/pinctrl/
Dabilis,tb10x-iomux.txt1 Abilis Systems TB10x pin controller
5 -------------------
7 - compatible: should be "abilis,tb10x-iomux";
8 - reg: should contain the physical address and size of the pin controller's
13 --------------------
15 Functions are defined (and referenced) by sub-nodes of the pin controller.
16 Every sub-node defines exactly one function (implying a set of pins).
19 controller sub-nodes.
22 - abilis,function: should be set to the name of the function's pin group.
25 - GPIO ports: gpioa, gpiob, gpioc, gpiod, gpioe, gpiof, gpiog,
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/kernel/linux/linux-5.10/arch/mips/lib/
Dmemcpy.S21 * Prefetching may be fatal on some systems if we're prefetching beyond the
22 * end of memory on some systems. It's also a seriously bad idea on non
23 * dma-coherent systems.
36 #include <asm/asm-offsets.h>
49 * - src and dst don't overlap
50 * - src is readable
51 * - dst is writable
59 * - src is readable (no exceptions when reading src)
61 * - dst is writable (no exceptions when writing dst)
62 * __copy_user uses a non-standard calling convention; see
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/kernel/linux/linux-5.10/Documentation/usb/
Dgadget_serial.rst7 (updated 8-May-2008 for v2.3)
11 ----------------------
25 MA 02111-1307 USA.
35 -------------
55 --------
65 --------------------------------------
66 | Host-Side CDC ACM USB Host |
68 | System | Generic USB | Driver |--------
71 -------------------------------------- |
76 -------------------------------------- |
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/kernel/linux/linux-5.10/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/
Dbase.c44 const int slot = pt->base >> pt->ptp->shift; in nvkm_mmu_ptp_put()
45 struct nvkm_mmu_ptp *ptp = pt->ptp; in nvkm_mmu_ptp_put()
50 if (!ptp->free) in nvkm_mmu_ptp_put()
51 list_add(&ptp->head, &mmu->ptp.list); in nvkm_mmu_ptp_put()
52 ptp->free |= BIT(slot); in nvkm_mmu_ptp_put()
54 /* If there's no more sub-allocations, destroy PTP. */ in nvkm_mmu_ptp_put()
55 if (ptp->free == ptp->mask) { in nvkm_mmu_ptp_put()
56 nvkm_mmu_ptc_put(mmu, force, &ptp->pt); in nvkm_mmu_ptp_put()
57 list_del(&ptp->head); in nvkm_mmu_ptp_put()
74 ptp = list_first_entry_or_null(&mmu->ptp.list, typeof(*ptp), head); in nvkm_mmu_ptp_get()
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/mailbox/
Domap-mailbox.txt25 routed to different processor sub-systems on DRA7xx as they are routed through
35 a SoC. The sub-mailboxes are represented as child nodes of this parent node.
38 --------------------
39 - compatible: Should be one of the following,
40 "ti,omap2-mailbox" for OMAP2420, OMAP2430 SoCs
41 "ti,omap3-mailbox" for OMAP3430, OMAP3630 SoCs
42 "ti,omap4-mailbox" for OMAP44xx, OMAP54xx, AM33xx,
44 "ti,am654-mailbox" for K3 AM65x and J721E SoCs
45 - reg: Contains the mailbox register address range (base
47 - interrupts: Contains the interrupt information for the mailbox
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/kernel/linux/linux-5.10/drivers/mfd/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
44 tristate "Active-semi ACT8945A"
49 Support for the ACT8945A PMIC from Active-semi. This device
50 features three step-down DC/DC converters and four low-dropout
66 sun4i-gpadc-iio and the hwmon driver iio_hwmon.
69 called sun4i-gpadc.
88 tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
119 over at91-usart-serial driver and usart-spi-driver. Only one function
135 tristate "Atmel HLCDC (High-end LCD Controller)"
172 tristate "X-Powers AC100"
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/kernel/linux/linux-5.10/arch/alpha/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
44 The Alpha is a 64-bit general-purpose processor designed and
46 now Hewlett-Packard. The Alpha Linux project has a home page at
97 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
98 Alpha-XL XL-233, XL-266
108 LX164 AlphaPC164-LX
117 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
118 SX164 AlphaPC164-SX
135 bool "Alcor/Alpha-XLT"
138 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
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/kernel/linux/linux-5.10/Documentation/vm/
Dmemory-model.rst1 .. SPDX-License-Identifier: GPL-2.0
29 Regardless of the selected memory model, there exists one-to-one
41 non-NUMA systems with contiguous, or mostly contiguous, physical
61 straightforward: `PFN - ARCH_PFN_OFFSET` is an index to the
65 systems with physical memory starting at address different from 0.
83 Every `node_mem_map` behaves exactly as FLATMEM's `mem_map` -
97 page->flags.
109 as hot-plug and hot-remove of the physical memory, alternative memory
110 maps for non-volatile memory devices and deferred initialization of
111 the memory map for larger systems.
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/kernel/linux/linux-5.10/Documentation/trace/coresight/
Dcoresight-ect.rst1 .. SPDX-License-Identifier: GPL-2.0
11 --------------------
21 0 C 0----------->: : +======>(other CTI channel IO)
22 0 P 0<-----------: : v
24 0000000 : CTI :<=========>*CTM*<====>: CTI :---+
25 ####### in_trigs : : (id 0-3) ***** ::::::: v
26 # ETM #----------->: : ^ #######
27 # #<-----------: : +---# ETR #
50 The hardware trigger signals can also be connected to non-CoreSight devices
53 All the CTI devices are associated with a CTM. On many systems there will be a
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/kernel/linux/linux-5.10/drivers/media/test-drivers/vivid/
Dvivid-vid-common.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * vivid-vid-common.h - common video support functions.
5 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
14 * Conversion function that converts a single-planar format to a
15 * single-plane multiplanar format.
36 int vidioc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub);
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/arm/
Drenesas.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Renesas SH-Mobile, R-Mobile, and R-Car Platform Device Tree Bindings
10 - Geert Uytterhoeven <geert+renesas@glider.be>
17 - description: Emma Mobile EV2
19 - enum:
20 - renesas,kzm9d # Kyoto Microcomputer Co. KZM-A9-Dual
21 - const: renesas,emev2
23 - description: RZ/A1H (R7S72100)
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