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/linux/drivers/gpu/drm/msm/disp/dpu1/
H A 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.
16 * Max hardware block count: For ex: max 12 SSPP pipes or
32 * MDP TOP BLOCK features
35 * @DPU_MDP_PERIPH_0_REMOVED Indicates that access to periph top0 block results
38 * (moved into INTF block since DPU 5.0.0)
52 * SSPP sub-blocks/features
54 …* @DPU_SSPP_SCALER_QSEED3_COMPATIBLE, QSEED3-compatible alogorithm support (includes QSEED3, QSEE…
57 * @DPU_SSPP_CSC_10BIT, Support of 10-bit Color space conversion
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/linux/Documentation/devicetree/bindings/sound/
H A Dst,stm32-sai.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/st,stm32-sai.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Olivier Moysan <olivier.moysan@foss.st.com>
14 protocols as I2S standards, LSB or MSB-justified, PCM/DSP, TDM, and AC'97.
15 The SAI contains two independent audio sub-blocks. Each sub-block has
21 - st,stm32f4-sai
22 - st,stm32h7-sai
26 - description: Base address and size of SAI common register set.
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/linux/sound/soc/uniphier/
H A Daio-core.c1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (c) 2016-2018 Socionext Inc.
17 #include "aio-reg.h"
22 return wr - rd; in rb_cnt()
24 return len - (rd - wr); in rb_cnt()
30 return wr - rd; in rb_cnt_to_end()
32 return len - rd; in rb_cnt_to_end()
38 return len - (wr - rd) - 8; in rb_space()
40 return rd - wr - 8; in rb_space()
46 return rd - wr - 8; in rb_space_to_end()
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/linux/Documentation/userspace-api/netlink/
H A 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
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H A 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.
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/linux/Documentation/driver-api/media/
H A Dv4l2-subdev.rst1 .. SPDX-License-Identifier: GPL-2.0
3 V4L2 sub-devices
4 ----------------
6 Many drivers need to communicate with sub-devices. These devices can do all
8 encoding or decoding. For webcams common sub-devices are sensors and camera
12 driver with a consistent interface to these sub-devices the
13 :c:type:`v4l2_subdev` struct (v4l2-subdev.h) was created.
15 Each sub-device driver must have a :c:type:`v4l2_subdev` struct. This struct
16 can be stand-alone for simple sub-devices or it might be embedded in a larger
18 low-level device struct (e.g. ``i2c_client``) that contains the device data as
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H A Dv4l2-controls.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ------------
31 sub-device drivers.
35 ------------------------
48 Basic usage for V4L2 and sub-device drivers
49 -------------------------------------------
53 .. code-block:: c
55 #include <media/v4l2-ctrls.h>
57 1.1) Add the handler to your driver's top-level struct:
61 .. code-block:: c
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/linux/lib/zstd/compress/
H A Dzstd_compress_superblock.c5 * This source code is licensed under both the BSD-style license (found in the
8 * You may select, at your option, one of the above-listed licenses.
11 /*-*************************************
23 * Compresses literals section for a sub-block.
32 * hufMetadata->hType has literals block type info.
33 * If it is set_basic, all sub-blocks literals section will be Raw_Literals_Block.
34 * If it is set_rle, all sub-blocks literals section will be RLE_Literals_Block.
35 …* If it is set_compressed, first sub-block's literals section will be Compressed_Literals_Blo…
36 * If it is set_compressed, first sub-block's literals section will be Treeless_Literals_Block
37 * and the following sub-blocks' literals sections will be Treeless_Literals_Block.
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/linux/arch/arm64/crypto/
H A Daes-modes.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm64/crypto/aes-modes.S - chaining mode wrappers for AES
5 * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
8 /* included by aes-ce.S and aes-neon.S */
62 ld1 {v0.16b-v3.16b}, [x1], #64 /* get 4 pt blocks */
66 st1 {v0.16b-v3.16b}, [x0], #64
73 ld1 {v0.16b}, [x1], #16 /* get next pt block */
92 ld1 {v0.16b-v3.16b}, [x1], #64 /* get 4 ct blocks */
96 st1 {v0.16b-v3.16b}, [x0], #64
103 ld1 {v0.16b}, [x1], #16 /* get next ct block */
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/linux/arch/sparc/lib/
H A DNGmemcpy.S1 /* SPDX-License-Identifier: GPL-2.0 */
94 sub %g1, 8, %g1
99 sub %g1, 16, %g1
104 sub %g1, 24, %g1
109 sub %g1, 32, %g1
114 sub %g1, 40, %g1
119 sub %g1, 48, %g1
124 sub %g1, 56, %g1
133 sub %i4, 8, %i4
171 save %sp, -SAVE_AMOUNT, %sp
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H A DM7memcpy.S15 * Fast assembler language version of the following C-program for memcpy
16 * which represents the `standard' for the C-library.
26 * } while (--n != 0);
60 * copy with ldx/stx in 8-way unrolled loop;
61 * copy final 0-63 bytes; exit with dst addr
65 * Use BIS (block initializing store) to avoid copying store cache
66 * lines from memory. But pre-store first element of each cache line
74 * move words in 8-way unrolled loop
75 * move final 0-31 bytes; exit with dst addr
77 * use alignaddr/faligndata combined with ldd/std in 8-way
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H A DM7memset.S15 * Fast assembler language version of the following C-program for memset
16 * which represents the `standard' for the C-library.
25 * } while (--n != 0);
35 * Then store as many 4-byte chunks, followed by trailing bytes.
39 * store 8-bytes chunks to align the address on 64 byte boundary
42 * 64-byte cache line to zero which will also clear the
49 * In the main loop, continue pre-setting the first long
56 * store remaining data in 64-byte chunks until less than
59 * Store as many 8-byte chunks, followed by trailing bytes.
61 * BIS = Block Init Store
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/linux/Documentation/admin-guide/media/
H A Dfimc.rst1 .. SPDX-License-Identifier: GPL-2.0
8 Copyright |copy| 2012 - 2013 Samsung Electronics Co., Ltd.
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
31 - dynamic pipeline re-configuration at runtime (re-attachment of any FIMC
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/linux/Documentation/filesystems/
H A Dzonefs.rst1 .. SPDX-License-Identifier: GPL-2.0
4 ZoneFS - Zone filesystem for Zoned block devices
10 zonefs is a very simple file system exposing each zone of a zoned block device
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
13 constraint of zoned block devices to the user. Files representing sequential
17 As such, zonefs is in essence closer to a raw block device access interface
18 than to a full-featured POSIX file system. The goal of zonefs is to simplify
19 the implementation of zoned block device support in applications by replacing
20 raw block device file accesses with a richer file API, avoiding relying on
21 direct block device file ioctls which may be more obscure to developers. One
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/linux/Documentation/devicetree/bindings/mailbox/
H A Dti,omap-mailbox.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/ti,omap-mailbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
14 processors using a queued mailbox interrupt mechanism. The IP block is
19 Each mailbox IP block/cluster has a certain number of h/w fifo queues and
35 lines can also be routed to different processor sub-systems on DRA7xx as they
38 combine multiple clusters into a single IP block present within the Main
42 block comprising of multiple clusters, but the number of clusters are
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/linux/include/drm/
H A Ddrm_fourcc.h30 * DRM_FORMAT_MAX_PLANES - maximum number of planes a DRM format can have
60 * struct drm_format_info - information about a DRM format
92 * Number of bytes per block (per plane), where blocks are
105 * block and non-block formats in the same way.
107 * For formats that are intended to be used only with non-linear
119 * Block width in pixels, this is intended to be accessed through
127 * Block height in pixels, this is intended to be accessed through
143 /** @is_color_indexed: Is it a color-indexed format? */
148 * drm_format_info_is_yuv_packed - check that the format info matches a YUV
158 return info->is_yuv && info->num_planes == 1; in drm_format_info_is_yuv_packed()
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/linux/arch/x86/crypto/
H A Daes-xts-avx-x86_64.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * AES-XTS for modern x86_64 CPUs
11 * This file implements AES-XTS for modern x86_64 CPUs. To handle the
16 * AES-NI + AVX
17 * - 128-bit vectors (1 AES block per vector)
18 * - VEX-coded instructions
19 * - xmm0-xmm15
20 * - This is for older CPUs that lack VAES but do have AVX.
23 * - 256-bit vectors (2 AES blocks per vector)
24 * - VEX-coded instructions
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H A Daes-gcm-aesni-x86_64.S1 /* SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause */
3 // AES-NI optimized AES-GCM for x86_64
9 //------------------------------------------------------------------------------
11 // This file is dual-licensed, meaning that you can use it under your choice of
17 // http://www.apache.org/licenses/LICENSE-2.0
49 //------------------------------------------------------------------------------
51 // This file implements AES-GCM (Galois/Counter Mode) for x86_64 CPUs that
52 // support the original set of AES instructions, i.e. AES-NI. Two
55 // that the AVX implementation takes advantage of VEX-coded instructions in some
57 // implementation does *not* use 256-bit vectors, as AES is not supported on
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/linux/Documentation/devicetree/bindings/powerpc/fsl/
H A Dsrio-rmu.txt5 node is composed of three types of sub-nodes ("fsl-srio-msg-unit",
6 "fsl-srio-dbell-unit" and "fsl-srio-port-write-unit").
10 - compatible
13 Definition: Must include "fsl,srio-rmu-vX.Y", "fsl,srio-rmu".
15 The version X.Y should match the general SRIO controller's IP Block
18 - reg
20 Value type: <prop-encoded-array>
25 - fsl,liodn
26 Usage: optional-but-recommended (for devices with PAMU)
27 Value type: <prop-encoded-array>
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/linux/fs/xfs/scrub/
H A Drepair.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2018-2023 Oracle. All Rights Reserved.
50 * told us to fix it. This function returns -EAGAIN to mean "re-run scrub",
61 trace_xrep_attempt(XFS_I(file_inode(sc->file)), sc->sm, error); in xrep_attempt()
63 xchk_ag_btcur_free(&sc->sa); in xrep_attempt()
66 ASSERT(sc->ops->repair); in xrep_attempt()
67 run->repair_attempted = true; in xrep_attempt()
69 error = sc->ops->repair(sc); in xrep_attempt()
70 trace_xrep_done(XFS_I(file_inode(sc->file)), sc->sm, error); in xrep_attempt()
71 run->repair_ns += xchk_stats_elapsed_ns(repair_start); in xrep_attempt()
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/linux/Documentation/devicetree/bindings/interconnect/
H A Dsamsung,exynos-bus.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/interconnect/samsung,exynos-bus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
15 sub-blocks in SoC. Most Exynos SoCs share the common architecture for buses.
20 sub-blocks.
22 The Exynos SoC includes the various sub-blocks which have the each AXI bus.
24 line. The power line might be shared among one more sub-blocks. So, we can
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/linux/Documentation/userspace-api/media/
H A Dglossary.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
58 **Field-programmable Gate Array**
63 See https://en.wikipedia.org/wiki/Field-programmable_gate_array.
67 :term:`SPI` device, or an :term:`IP Block` inside an
72 together make a larger user-facing functional peripheral. For
73 instance, the :term:`SoC` :term:`ISP` :term:`IP Block`
80 **Inter-Integrated Circuit**
82 A multi-master, multi-slave, packet switched, single-ended,
84 like sub-device hardware components.
86 See http://www.nxp.com/docs/en/user-guide/UM10204.pdf.
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/linux/arch/arm/crypto/
H A Daes-ce-core.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * aes-ce-core.S - AES in CBC/CTR/XTS mode using ARMv8 Crypto Extensions
12 .arch armv8-a
13 .fpu crypto-neon-fp-armv8
102 vld1.32 {q10-q11}, [ip]!
104 vld1.32 {q12-q13}, [ip]!
106 vld1.32 {q10-q11}, [ip]!
108 vld1.32 {q12-q13}, [ip]!
110 blo 0f @ AES-128: 10 rounds
111 vld1.32 {q10-q11}, [ip]!
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/linux/sound/soc/stm/
H A Dstm32_sai_sub.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
10 #include <linux/clk-provider.h>
41 #define STM_SAI_IS_PLAYBACK(ip) ((ip)->dir == SNDRV_PCM_STREAM_PLAYBACK)
42 #define STM_SAI_IS_CAPTURE(ip) ((ip)->dir == SNDRV_PCM_STREAM_CAPTURE)
47 #define STM_SAI_IS_SUB_A(x) ((x)->id == STM_SAI_A_ID)
53 #define STM_SAI_PROTOCOL_IS_SPDIF(ip) ((ip)->spdif)
54 #define STM_SAI_HAS_SPDIF(x) ((x)->pdata->conf.has_spdif_pdm)
55 #define STM_SAI_HAS_PDM(x) ((x)->pdata->conf.has_spdif_pdm)
56 #define STM_SAI_HAS_EXT_SYNC(x) (!STM_SAI_IS_F4(sai->pdata))
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/linux/include/linux/ceph/
H A Drados.h1 /* SPDX-License-Identifier: GPL-2.0 */
29 #define CEPH_SNAPDIR ((__u64)(-1)) /* reserved for hidden .snap dir */
30 #define CEPH_NOSNAP ((__u64)(-2)) /* "head", "live" revision */
31 #define CEPH_MAXSNAP ((__u64)(-3)) /* largest valid snapid */
40 * object layout - how objects are mapped into PGs
47 * pg layout -- how PGs are mapped onto (sets of) OSDs
69 * pg_num -- base number of pseudorandomly placed pgs
71 * pgp_num -- effective number when calculating pg placement. this
78 * lpg_num -- localized pg count (per device). replicas are randomly
81 * lpgp_num -- as above.
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