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/linux/Documentation/admin-guide/media/
H A Dimx.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ------------
9 The Freescale i.MX5/6 contains an Image Processing Unit (IPU), which
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)
26 re-ordering (for example UYVY to YUYV) within the same colorspace, and
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/linux/Documentation/infiniband/
H A Dtag_matching.rst5 The MPI standard defines a set of rules, known as tag-matching, for matching
10 * User tag - wild card may be specified by the receiver
15 message envelopes may match, the pair that includes the earliest posted-send
16 and the earliest posted-receive is the pair that must be used to satisfy the
31 1. The Eager protocol- the complete message is sent when the send is
35 2. The Rendezvous Protocol - the sender sends the tag-matching header,
51 pre-posted receive for this arriving message, it is passed to the software and
53 including rendezvous processing, if appropriate, delivering the data to the
54 specified receive buffer. This allows overlapping receive-side MPI tag
57 When a receive-message is posted, the communication library will first check
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/linux/drivers/gpu/drm/i915/gt/uc/
H A Dguc_capture_fwif.h1 /* SPDX-License-Identifier: MIT */
3 * Copyright © 2021-2022 Intel Corporation
18 * Book-keeping structure used to track read and write pointers
19 * as we extract error capture data from the GuC-log-buffer's
20 * error-capture region as a stream of dwords.
30 * struct __guc_capture_parsed_output - extracted error capture node
32 * A single unit of extracted error-capture output data grouped together
33 * at an engine-instance level. We keep these nodes in a linked list.
38 * A single set of 3 capture lists: a global-list
39 * an engine-class-list and an engine-instance list.
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/linux/tools/perf/pmu-events/arch/arm64/arm/cortex-a510/
H A Dpipeline.json21 … the frontend, cache miss. This event counts every cycle that the Data Processing Unit (DPU) instr…
24 … the frontend, cache miss. This event counts every cycle that the Data Processing Unit (DPU) instr…
33 "PublicDescription": "No operation issued due to the frontend, pre-decode error",
36 "BriefDescription": "No operation issued due to the frontend, pre-decode error"
51 …on": "No operation issued due to the backend, interlock, or the Vector Processing Unit (VPU). This…
54 …on": "No operation issued due to the backend, interlock, or the Vector Processing Unit (VPU). This…
69 …e event counts for stalls that are caused by missing the cache or where the data is Non-cacheable",
72 …he event counts for stalls that are caused by missing the cache or where the data is Non-cacheable"
/linux/fs/smb/server/
H A Dserver.c1 // SPDX-License-Identifier: GPL-2.0-or-later
44 return -EINVAL; in ___server_conf_set()
47 return -EINVAL; in ___server_conf_set()
52 return -ENOMEM; in ___server_conf_set()
87 * check_conn_state() - check state of server thread connection
96 if (ksmbd_conn_exiting(work->conn) || in check_conn_state()
97 ksmbd_conn_need_reconnect(work->conn)) { in check_conn_state()
98 rsp_hdr = work->response_buf; in check_conn_state()
99 rsp_hdr->Status.CifsError = STATUS_CONNECTION_DISCONNECTED; in check_conn_state()
119 conn->ops->set_rsp_status(work, STATUS_INVALID_PARAMETER); in __process_request()
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/linux/drivers/gpu/drm/meson/
H A Dmeson_vpp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * DOC: Video Post Processing
18 * VPP Handles all the Post Processing after the Scanout from the VIU
21 * - Postblend, Blends the OSD1 only
23 * - Vertical OSD Scaler for OSD1 only, we disable vertical scaler and
25 * - Intermediate FIFO with default Amlogic values
29 * - Preblend for video overlay pre-scaling
30 * - OSD2 support for cursor framebuffer
31 * - Video pre-scaling before postblend
32 * - Full Vertical/Horizontal OSD scaling to support TV overscan
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/linux/drivers/media/platform/renesas/vsp1/
H A Dvsp1_dl.c1 // SPDX-License-Identifier: GPL-2.0+
3 * vsp1_dl.c -- R-Car VSP1 Display List
11 #include <linux/dma-mapping.h>
41 * struct vsp1_dl_ext_header - Extended display list header
43 * @pre_ext_dl_num_cmd: number of pre-extended command bodies to parse
44 * @flags: enables or disables execution of the pre and post command
45 * @pre_ext_dl_plist: start address of pre-extended display list bodies
46 * @post_ext_dl_num_cmd: number of post-extended command bodies to parse
47 * @post_ext_dl_plist: start address of post-extended display list bodies
54 * expecting 32-bit accesses. The flags are appropriate to the whole
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/linux/include/uapi/linux/
H A Drkisp1-config.h1 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
16 /* Sensor De-gamma */
32 /* Color Processing */
44 /* Denoise Pre-Filter */
46 /* Denoise Pre-Filter Strength */
129 /* 0-2 for sets 1-3 */
162 * Denoising pre filter
181 * enum rkisp1_cif_isp_version - ISP variants
221 * enum rkisp1_cif_isp_exp_ctrl_autostop - stop modes
231 * enum rkisp1_cif_isp_exp_meas_mode - Exposure measure mode
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/linux/Documentation/devicetree/bindings/input/
H A Dmicrochip,qt1050.txt1 Microchip AT42QT1050 Five-channel Touch Sensor IC
4 one to five keys, dependent on mode. The QT1050 includes all signal processing
11 - compatible: Must be "microchip,qt1050"
12 - reg: The I2C address of the device
13 - interrupts: The sink for the touchpad's IRQ output,
14 see ../interrupt-controller/interrupts.txt
17 - wakeup-source: touch keys can be used as a wakeup source
19 Each button (key) is represented as a sub-node:
25 - linux,code: Keycode to emit.
26 - reg: The key number. Valid values: 0, 1, 2, 3, 4.
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/linux/arch/loongarch/kernel/
H A Dkprobes.c1 // SPDX-License-Identifier: GPL-2.0-only
15 p->ainsn.insn[0] = *p->addr; in arch_prepare_ss_slot()
16 p->ainsn.insn[1] = KPROBE_SSTEPBP_INSN; in arch_prepare_ss_slot()
17 p->ainsn.restore = (unsigned long)p->addr + LOONGARCH_INSN_SIZE; in arch_prepare_ss_slot()
23 p->ainsn.restore = 0; in arch_prepare_simulate()
31 if ((unsigned long)p->addr & 0x3) in arch_prepare_kprobe()
32 return -EILSEQ; in arch_prepare_kprobe()
35 p->opcode = *p->addr; in arch_prepare_kprobe()
36 insn.word = p->opcode; in arch_prepare_kprobe()
40 return -EINVAL; in arch_prepare_kprobe()
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/linux/Documentation/devicetree/bindings/display/
H A Damlogic,meson-vpu.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/display/amlogic,meson-vpu.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Neil Armstrong <neil.armstrong@linaro.org>
17 DMC|---------------VPU (Video Processing Unit)----------------|------HHI------|
19 D |-------| |----| | | | | HDMI PLL |
20 D | vd2 | VIU | | Video Post | | Video Encoders |<---|-----VCLK |
21 R |-------| |----| Processing | | | | |
22 | osd2 | | | |---| Enci ----------|----|-----VDAC------|
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/linux/Documentation/devicetree/bindings/media/
H A Dti,cal.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Benoit Parrot <bparrot@ti.com>
12 description: |-
15 processing capability to connect CSI2 image-sensor modules to the
24 - ti,dra72-cal
25 # for DRA72 controllers pre ES2.0
26 - ti,dra72-pre-es2-cal
28 - ti,dra76-cal
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/linux/drivers/misc/echo/
H A Decho.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * SpanDSP - a series of DSP components for telephony
5 * echo.c - A line echo canceller. This code is being developed
24 This module aims to provide G.168-2002 compliant echo cancellation, to remove
25 electrical echoes (e.g. from 2-4 wire hybrids) from voice calls.
43 varies widely. This is quite easy to fix. If the signal level is normalised -
44 similar to applying AGC - LMS can work as well for a signal of varying
47 other algorithms exist - e.g. RLS (essentially the same as Kalman filtering),
54 high frequency content. Pre-whitening (i.e. filtering the signal to flatten its
57 low complexity filter is adequate for this, so pre-whitening adds little to the
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/linux/Documentation/devicetree/bindings/sound/
H A Dnvidia,tegra210-ahub.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra210-ahub.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 for audio pre-processing, post-processing and a programmable full
17 - Jon Hunter <jonathanh@nvidia.com>
18 - Sameer Pujar <spujar@nvidia.com>
22 pattern: "^ahub@[0-9a-f]*$"
26 - enum:
27 - nvidia,tegra210-ahub
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/linux/kernel/
H A DKconfig.preempt1 # SPDX-License-Identifier: GPL-2.0-only
33 raw processing power of the kernel, irrespective of scheduling
57 bool "Preemptible Kernel (Low-Latency Desktop)"
90 bool "Fully Preemptible Kernel (Real-Time)"
94 This option turns the kernel into a real-time kernel by replacing
96 preemptible priority-inheritance aware variants, enforcing
98 non-preemptible sections. This makes the kernel, except for very
104 require real-time guarantees.
125 provide a pre-built kernel binary to reduce the number of kernel
132 Interesting if you want the same pre-built kernel should be used for
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/linux/Documentation/devicetree/bindings/dsp/
H A Dmediatek,mt8186-dsp.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dsp/mediatek,mt8186-dsp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tinghan Shen <tinghan.shen@mediatek.com>
14 advanced pre- and post- audio processing.
19 - mediatek,mt8186-dsp
20 - mediatek,mt8188-dsp
24 - description: Address and size of the DSP config registers
25 - description: Address and size of the DSP SRAM
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H A Dmediatek,mt8195-dsp.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dsp/mediatek,mt8195-dsp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - YC Hung <yc.hung@mediatek.com>
14 advanced pre- and post- audio processing.
18 const: mediatek,mt8195-dsp
22 - description: Address and size of the DSP Cfg registers
23 - description: Address and size of the DSP SRAM
25 reg-names:
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/linux/kernel/bpf/
H A Dcgroup_iter.c1 // SPDX-License-Identifier: GPL-2.0-only
9 #include "../cgroup/cgroup-internal.h" /* cgroup_mutex and cgroup_is_dead */
13 * 1. Walk the descendants of a cgroup in pre-order.
14 * 2. Walk the descendants of a cgroup in post-order.
18 * For walking descendants, cgroup_iter can walk in either pre-order or
19 * post-order. For walking ancestors, the iter walks up from a cgroup to
25 * The prog can check (seq->num == 0) to determine whether this is
28 * do post-processing, such as outputting an epilogue.
59 struct cgroup_iter_priv *p = seq->private; in cgroup_iter_seq_start()
65 if (p->visited_all) in cgroup_iter_seq_start()
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/linux/arch/arc/kernel/
H A Dkprobes.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
18 (unsigned long)current_thread_info() + THREAD_SIZE - (addr))
26 if ((unsigned long)p->addr & 0x01) in arch_prepare_kprobe()
27 return -EINVAL; in arch_prepare_kprobe()
31 p->ainsn.is_short = is_short_instr((unsigned long)p->addr); in arch_prepare_kprobe()
32 p->opcode = *p->addr; in arch_prepare_kprobe()
39 *p->addr = UNIMP_S_INSTRUCTION; in arch_arm_kprobe()
41 flush_icache_range((unsigned long)p->addr, in arch_arm_kprobe()
42 (unsigned long)p->addr + sizeof(kprobe_opcode_t)); in arch_arm_kprobe()
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/linux/Documentation/sphinx/
H A Dmaintainers_include.py2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8; mode: python -*-
7 maintainers-include
10 Implementation of the ``maintainers-include`` reST-directive.
15 The ``maintainers-include`` reST-directive performs extensive parsing
32 app.add_directive("maintainers-include", MaintainersInclude)
40 u"""MaintainersInclude (``maintainers-include``) directive"""
44 """Parse all the MAINTAINERS lines into ReST for human-readability"""
67 # Ensure a blank line following the last "|"-prefixed line.
70 # Start subsystem processing? This is to skip processing the text
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/linux/drivers/scsi/lpfc/
H A Dlpfc_sli.h4 * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
73 uint16_t iotag; /* pre-assigned IO tag */
74 uint16_t sli4_lxritag; /* logical pre-assigned XRI. */
75 uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
80 union lpfc_wqe128 wqe; /* SLI-4 */
81 IOCB_t iocb; /* SLI-3 */
86 /* Pack the u8's together and make them module-4. */
91 u8 retry; /* retry counter for IOCB cmd - if needed */
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/linux/arch/powerpc/crypto/
H A Daes-spe-core.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
14 #include "aes-spe-regs.h"
17 rlwimi rT0,in,28-((bpos+3)%4)*8,20,27;
20 rlwimi rT1,in,24-((bpos+3)%4)*8,24,31;
56 * via bl/blr. It expects that caller has pre-xored input data with first
57 * 4 words of encryption key into rD0-rD3. Pointer/counter registers must
58 * have also been set up before (rT0, rKP, CTR). Output is stored in rD0-rD3
59 * and rW0-rW3 and caller must execute a final xor on the output registers.
60 * All working registers rD0-rD3 & rW0-rW7 are overwritten during processing.
204 * via bl/blr. It expects that caller has pre-xored input data with first
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/linux/Documentation/driver-api/nfc/
H A Dnfc-hci.rst5 - Author: Eric Lapuyade, Samuel Ortiz
6 - Contact: eric.lapuyade@intel.com, samuel.ortiz@intel.com
9 -------
12 enables easy writing of HCI-based NFC drivers. The HCI layer runs as an NFC Core
17 ---
30 - one for executing commands : nfc_hci_msg_tx_work(). Only one command
32 - one for dispatching received events and commands : nfc_hci_msg_rx_work().
35 --------------------------
41 In case the chip supports pre-opened gates and pseudo-static pipes, the driver
45 -------------------
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/linux/net/ipv6/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
18 <https://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/>
31 are placed in a multi-homed network.
140 "ip -6 route" command. ILA is described in
141 https://tools.ietf.org/html/draft-herbert-nvo3-ila-00.
167 tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
177 networks over an IPv4-only path.
186 IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
190 IPv4 encapsulation in order to transit IPv4-only network
204 tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
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/linux/include/linux/
H A Dcrypto.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
53 * Set if the algorithm has passed automated run-time testing. Note that
54 * if there is no run-time testing for a given algorithm it is considered
77 * Set if the algorithm has a ->setkey() method but can be used without
88 * The algorithm may allocate memory during request processing, i.e. during
99 * - The IV buffer and all scatterlist elements must be aligned to the
101 * - If the data were to be divided into chunks of size
105 * - The IV buffer and all scatterlist elements must be aligned to the
107 * - The first scatterlist element must contain all the associated data,
109 * - If the plaintext/ciphertext were to be divided into chunks of size
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