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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".
18 - reg
20 Value type: <prop-encoded-array>
22 length of the SRIO configuration registers for message units
23 and doorbell units.
25 - fsl,liodn
26 Usage: optional-but-recommended (for devices with PAMU)
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/linux/drivers/perf/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
17 If compiled as a module, it will be called arm-cci.
20 bool "support CCI-400"
25 CCI-400 provides 4 independent event counters counting events related
29 bool "support CCI-500/CCI-550"
33 CCI-500/CCI-550 both provide 8 independent event counters, which can
45 tristate "Arm CMN-600 PMU support"
48 Support for PMU events monitoring on the Arm CMN-600 Coherent Mesh
52 tristate "Arm NI-700 PMU support"
55 Support for PMU events monitoring on the Arm NI-700 Network-on-Chip
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/linux/Documentation/userspace-api/media/v4l/
H A Dvidioc-g-modulator.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_MODULATOR - VIDIOC_S_MODULATOR - Get or set modulator attributes
52 this is a write-only ioctl, it does not return the actual audio
67 .. flat-table:: struct v4l2_modulator
68 :header-rows: 0
69 :stub-columns: 0
72 * - __u32
73 - ``index``
74 - Identifies the modulator, set by the application.
75 * - __u8
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H A Dmetafmt-d4xx.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-meta-fmt-d4xx:
15 Intel D4xx (D435, D455 and others) cameras include per-frame metadata in their UVC
37 .. flat-table:: D4xx metadata
39 :header-rows: 1
40 :stub-columns: 0
42 * - **Field**
43 - **Description**
44 * - :cspan:`1` *Depth Control*
45 * - __u32 ID
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H A Dext-ctrls-image-source.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _image-source-controls:
9 The Image Source control class is intended for low-level control of
15 .. _image-source-control-id:
28 same sub-device.
59 non-sensitive.
64 .. flat-table:: struct v4l2_area
65 :header-rows: 0
66 :stub-columns: 0
69 * - __u32
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/linux/arch/mips/lib/
H A Dcsum_partial.S16 #include <asm/asm-offsets.h>
381 #define SUB dsubu macro
401 #define SUB subu macro
428 #define REST(unit) (FIRST(unit)+NBYTES-1)
430 #define ADDRMASK (NBYTES-1)
440 li sum, -1
462 * use delay slot for fall-through
466 SRL t0, len, LOG_NBYTES+3 # +3 for 8 units/iter
469 SUB len, 8*NBYTES # subtract here for bgez loop
480 SUB len, len, 8*NBYTES
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H A Dmemcpy.S23 * dma-coherent systems.
37 #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
63 * include/asm-mips/uaccess.h
76 * 1- AT contain the address of the byte just past the end of the source
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/linux/tools/perf/pmu-events/arch/x86/broadwellx/
H A Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
7-bit packed double precision floating-point instructions retired; some instructions will count twi…
12-bit packed single precision floating-point instructions retired; some instructions will count twi…
16-bit packed single precision floating-point instructions retired; some instructions will count twi…
21-bit packed double precision floating-point instructions retired; some instructions will count twi…
25-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
34-bit packed single precision floating-point instructions retired; some instructions will count twi…
39-bit packed single and 256-bit packed double precision FP instructions retired; some instructions …
43-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
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/linux/tools/perf/pmu-events/arch/x86/broadwellde/
H A Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
7-bit packed double precision floating-point instructions retired; some instructions will count twi…
12-bit packed single precision floating-point instructions retired; some instructions will count twi…
16-bit packed single precision floating-point instructions retired; some instructions will count twi…
21-bit packed double precision floating-point instructions retired; some instructions will count twi…
25-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
34-bit packed single precision floating-point instructions retired; some instructions will count twi…
39-bit packed single and 256-bit packed double precision FP instructions retired; some instructions …
43-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
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/linux/tools/perf/pmu-events/arch/x86/broadwell/
H A Dfloating-point.json3-bit packed double precision floating-point instructions retired; some instructions will count twi…
7-bit packed double precision floating-point instructions retired; some instructions will count twi…
12-bit packed single precision floating-point instructions retired; some instructions will count twi…
16-bit packed single precision floating-point instructions retired; some instructions will count twi…
21-bit packed double precision floating-point instructions retired; some instructions will count twi…
25-bit packed double precision floating-point instructions retired; some instructions will count twi…
30-bit packed single precision floating-point instructions retired; some instructions will count twi…
34-bit packed single precision floating-point instructions retired; some instructions will count twi…
39-bit packed single and 256-bit packed double precision FP instructions retired; some instructions …
43-bit packed single precision and 256-bit packed double precision floating-point instructions reti…
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/linux/arch/mips/cavium-octeon/
H A Docteon-memcpy.S18 #include <asm/asm-offsets.h>
30 * - src and dst don't overlap
31 * - src is readable
32 * - dst is writable
40 * - src is readable (no exceptions when reading src)
42 * - dst is writable (no exceptions when writing dst)
43 * __copy_user uses a non-standard calling convention; see
57 * 1- AT contain the address of the byte just past the end of the source
59 * 2- src_entry <= src < AT, and
60 * 3- (dst - src) == (dst_entry - src_entry),
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/linux/drivers/net/wireless/intel/iwlegacy/
H A D4965.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
8 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
79 * Acquire il->lock before calling this function !
83 * il4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
84 * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
87 * NOTE: Acquire il->lock before calling this function !
181 * The first queue used for block-ack aggregation is #7 (4965 only).
182 * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
194 #define IL49_RTC_INST_SIZE (IL49_RTC_INST_UPPER_BOUND - \
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/linux/Documentation/devicetree/bindings/memory-controllers/ddr/
H A Djedec,lpddr-channel.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr-channel.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
16 - Julius Werner <jwerner@chromium.org>
21 - jedec,lpddr2-channel
22 - jedec,lpddr3-channel
23 - jedec,lpddr4-channel
24 - jedec,lpddr5-channel
26 io-width:
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/linux/drivers/media/v4l2-core/
H A Dv4l2-flash-led-class.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * V4L2 flash LED sub-device registration helpers.
9 #include <linux/led-class-flash.h>
15 #include <media/v4l2-flash-led-class.h>
18 (v4l2_flash && v4l2_flash->ops && v4l2_flash->ops->op)
22 v4l2_flash->ops->op(v4l2_flash, arg) : \
23 -EINVAL)
46 intensity -= ctrl->minimum; in __intensity_to_led_brightness()
47 intensity /= (u32) ctrl->step; in __intensity_to_led_brightness()
55 if (ctrl->minimum) in __intensity_to_led_brightness()
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/linux/Documentation/devicetree/bindings/remoteproc/
H A Dti,pru-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,pru-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 Each Programmable Real-Time Unit and Industrial Communication Subsystem
14 (PRU-ICSS or PRUSS) has two 32-bit load/store RISC CPU cores called
15 Programmable Real-Time Units (PRUs), each represented by a node. Each PRU
17 use the Data RAMs present within the PRU-ICSS for code execution.
27 corresponding PRU-ICSS node. Each node can optionally be rendered inactive by
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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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/linux/arch/arm/kernel/
H A Dentry-common.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/kernel/entry-common.S
14 #include <asm/unistd-oabi.h>
19 #include "entry-header.S"
37 * have tracing, context tracking and rseq debug disabled - the overheads
45 ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
75 ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
81 /* Slower path - fall through to work_pending */
92 movlt scno, #(__NR_restart_syscall - __NR_SYSCALL_BASE)
94 ldmia sp, {r0 - r6} @ have to reload r0 - r6
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/linux/drivers/net/ethernet/freescale/enetc/
H A Denetc_ierb.c1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
4 * The Integrated Endpoint Register Block (IERB) is configured by pre-boot
7 * are read-only in the PF memory space.
9 * This driver fixes up the power-on reset values for the ENETC shared FIFO,
44 iowrite32(val, ierb->regs + offset); in enetc_ierb_write()
55 return -ENODEV; in enetc_ierb_register_pf()
58 return -EPROBE_DEFER; in enetc_ierb_register_pf()
62 * The power-on reset value (1800 bytes) is rounded up to the nearest in enetc_ierb_register_pf()
83 /* Initial credits, in units of 8 bytes, to the Ingress Congestion in enetc_ierb_register_pf()
104 ierb = devm_kzalloc(&pdev->dev, sizeof(*ierb), GFP_KERNEL); in enetc_ierb_probe()
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/linux/drivers/net/wireless/broadcom/brcm80211/brcmfmac/
H A Dfwil_types.h1 // SPDX-License-Identifier: ISC
79 #define BRCMF_OBSS_COEX_AUTO (-1)
88 /* Wakeup on loss-of-link due to Disassoc/Deauth: */
98 /* Wakeup after receipt of EAP-Identity Req: */
255 * struct tdls_iovar - common structure for tdls iovars.
320 __le16 beacon_period; /* units are Kusec */
326 u8 rates[16]; /* rates in 500kbps units w/hi bit set if basic */
329 __le16 atim_window; /* units are Kusec */
353 /* rates in 500kbps units w/hi bit set if basic */
375 __le32 nprobes; /* -1 use default, number of probes per channel */
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/linux/drivers/net/wireless/intersil/p54/
H A Deeprom.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
10 * - the islsm (softmac prism54) driver, which is:
11 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
12 * - stlc45xx driver
13 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
22 #include <linux/crc-ccitt.h>
57 * The defaults are taken from usb-logs of the
60 * rssi <-> dBm conversion database.
63 .add = -398,
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/linux/drivers/platform/x86/
H A Dintel_scu_ipc.c1 // SPDX-License-Identifier: GPL-2.0
5 * (C) Copyright 2008-2010,2015 Intel Corporation
10 * SCU has two IPC mechanism IPC-1 and IPC-2. IPC-1 is used between IA32 and
11 * SCU where IPC-2 is used between P-Unit and SCU. This driver delas with
12 * IPC-1 Driver provides an API for power control unit registers (e.g. MSIC)
35 #define IPC_CMD_PCNTRL_M 2 /* Register read-modify-write */
41 * To read or write information to the SCU, driver writes to IPC-1 memory
48 * the IPC-1 register block, causing an interrupt to the SCU
90 * intel_scu_ipc_dev_get() - Get SCU IPC instance
106 get_device(&ipcdev->dev); in intel_scu_ipc_dev_get()
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/linux/drivers/gpu/drm/amd/amdkfd/
H A Dkfd_crat.h1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
3 * Copyright 2014-2022 Advanced Micro Devices, Inc.
143 uint8_t reserved2[CRAT_MEMORY_RESERVED_LENGTH - 1];
279 uint8_t reserved2[CRAT_IOLINK_RESERVED_LENGTH - 1];
284 * HSA generic sub-type header
306 /* Indicates how many Compute Units share this cache
/linux/Documentation/filesystems/
H A Dzonefs.rst1 .. SPDX-License-Identifier: GPL-2.0
4 ZoneFS - Zone filesystem for Zoned block devices
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
18 than to a full-featured POSIX file system. The goal of zonefs is to simplify
22 example of this approach is the implementation of LSM (log-structured merge)
31 -------------------
62 by sub-directories. This file structure is built entirely using zone information
63 provided by the device and so does not require any complex on-disk metadata
66 On-disk metadata
67 ----------------
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/linux/Documentation/core-api/
H A Dgenericirq.rst7 :Copyright: |copy| 2005-2010: Thomas Gleixner
8 :Copyright: |copy| 2005-2006: Ingo Molnar
29 __do_IRQ() super-handler, which is able to deal with every type of
36 - Level type
38 - Edge type
40 - Simple type
44 - Fast EOI type
46 In the SMP world of the __do_IRQ() super-handler another type was
49 - Per CPU type
51 This split implementation of high-level IRQ handlers allows us to
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/linux/tools/power/x86/x86_energy_perf_policy/
H A Dx86_energy_perf_policy.81 .\" This page Copyright (C) 2010 - 2015 Len Brown <len.brown@intel.com>
5 x86_energy_perf_policy \- Manage Energy vs. Performance Policy
10 .RB "scope: \-\-cpu\ cpu-list | \-\-pkg\ pkg-list"
12 .RB "cpu-list, pkg-lis
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