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/linux/Documentation/devicetree/bindings/timestamp/
H A Dhte-consumer.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timestamp/hte-consumer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dipen Patel <dipenp@nvidia.com>
16 $ref: /schemas/types.yaml#/definitions/phandle-array
23 timestamp-names:
24 $ref: /schemas/types.yaml#/definitions/string-array
27 timestamp property.
30 timestamp-names: [ timestamps ]
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/linux/drivers/hte/
H A Dhte.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2021-2022 NVIDIA Corporation
32 * struct hte_ts_info - Information related to requested timestamp.
34 * @xlated_id: Timestamp ID as understood between HTE subsys and HTE provider,
38 * @seq: Timestamp sequence counter.
47 * @req_mlock: Lock during timestamp request/release APIs.
49 * @gdev: HTE abstract device that this timestamp information belongs to.
71 * struct hte_device - HTE abstract device
79 * @ei: Timestamp information.
107 const struct hte_chip *chip = gdev->chip; in hte_chip_dbgfs_init()
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H A Dhte-tegra194-test.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2021-2022 NVIDIA Corporation
20 * hardware timestamp on gpio_in and specified LIC IRQ lines.
29 * compatible = "nvidia,tegra194-hte-test";
30 * in-gpio = <&gpio_aon TEGRA194_AON_GPIO(BB, 1)>;
31 * out-gpio = <&gpio_aon TEGRA194_AON_GPIO(BB, 0)>;
34 * timestamp-names = "hte-gpio", "hte-i2c-irq";
39 * - Load test driver.
40 * - For the GPIO, at regular interval gpio_out pin toggles triggering
43 * - For the LIC IRQ line, it uses 0x19 interrupt which is i2c controller 1.
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/linux/Documentation/trace/
H A Dmmiotrace.rst2 In-kernel memory-mapped I/O tracing
11 Injection Test Harness. In Dec 2006 - Jan 2007, using the code from Intel,
15 Mmiotrace was built for reverse engineering any memory-mapped IO device with
19 Out-of-tree mmiotrace was originally modified for mainline inclusion and
24 -----------
29 is on-line, therefore mmiotrace takes all but one CPU off-line during run-time
30 activation. You can re-enable CPUs by hand, but you have been warned, there
35 ---------------------
38 $ mount -t debugfs debugfs /sys/kernel/debug
48 -----
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H A Deprobetrace.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Eprobe - Event-based Probe Tracing
9 - Written for v6.17
24 -------------------------
28 -:[EGRP/][EEVENT] : Clear a probe
39 @SYM[+|-offs] : Fetch memory at SYM +|- offs (SYM should be a data symbol)
41 +|-[u]OFFS(FETCHARG) : Fetch memory at FETCHARG +|- OFFS address.(\*3)(\*4)
51 -----
65 ---------------------------
75 ---------
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/linux/Documentation/filesystems/
H A Dvfat.rst10 mount -t vfat /dev/fd0 /mnt
42 **-20**: If current process is in group of file's group ID,
43 you can change timestamp.
45 **-2**: Other users can change timestamp.
69 There is also an option of doing UTF-8 translations
76 UTF-8 is the filesystem safe version of Unicode that
79 If 'uni_xlate' gets set, UTF-8 gets disabled.
152 from each timestamp to convert it to UTC used internally by
156 cases in presence of DST - time stamps in a different DST
176 FAT has the ATTR_RO (read-only) attribute. On Windows,
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H A Dadfs.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Acorn Disc Filing System - ADFS
8 -----------------------------
12 - new maps
13 - new directories or big directories
17 - E and E+, with or without boot block
18 - F and F+
29 directory updates, specifically updating the access mode and timestamp.
32 ----------------------
49 ------------------------------------------------
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/linux/scripts/dtc/
H A Dof_unittest_expect2 # SPDX-License-Identifier: GPL-2.0
40 $expect =~ s/^.*?>>//; # '?' is non-greedy, minimal match
54 if ($got =~ /^[+-]*[0-9]+/) {
55 $got =~ s/^[+-]*[0-9]+//;
60 if ($got =~ /^(0x)*[0-9a-f]+/) {
61 $got =~ s/^(0x)*[0-9a-f]+//;
100 -h print program usage
101 --help print program usage
102 --hide-expect suppress output of EXPECTed lines
103 --line-num report line number of CONSOLE_LOG
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/linux/Documentation/devicetree/bindings/net/
H A Dti,icssg-prueth.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/ti,icssg-prueth.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Md Danish Anwar <danishanwar@ti.com>
13 Ethernet based on the Programmable Real-Time Unit and Industrial
19 - ti,am642-icssg-prueth # for AM64x SoC family
20 - ti,am654-icssg-prueth # for AM65x SoC family
21 - ti,am654-sr1-icssg-prueth # for AM65x SoC family, SR1.0
32 dma-names:
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/linux/drivers/accel/ivpu/
H A Dvpu_boot_api.h1 /* SPDX-License-Identifier: MIT */
3 * Copyright (c) 2020-2024, Intel Corporation.
11 * fw_bin_header->api_version[VPU_BOOT_API_VER_ID] = (VPU_BOOT_API_VER_MAJOR << 16) |
32 * API header changed (field names, documentation, formatting) but API itself has not been changed
68 * Size of primary preemption buffer, assuming a 2-job submission queue.
74 * Size of secondary preemption buffer, assuming a 2-job submission queue.
86 /* Space reserved for future preemption-related fields. */
221 /* Clock frequencies: 0x20 - 0xFF */
226 /* Memory regions: 0x100 - 0x1FF */
246 /* IRQ re-direct numbers: 0x200 - 0x2FF */
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/linux/arch/nios2/boot/dts/
H A D10m50_devboard.dts1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
10 compatible = "altr,niosii-max10";
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
20 compatible = "altr,nios2-1.1";
22 interrupt-controller;
23 #interrupt-cells = <1>;
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/linux/Documentation/devicetree/bindings/timer/
H A Dnvidia,tegra-timer.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/timer/nvidia,tegra-timer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Stephen Warren <swarren@nvidia.com>
13 - if:
17 const: nvidia,tegra210-timer
27 - if:
31 - items:
32 - enum:
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/linux/tools/thermal/thermometer/
H A Dthermometer.82 # SPDX-License-Identifier: GPL-2.0
4 \fBthermometer\fP - A thermal profiling tool
23 the thermal zone names and the desired sampling period. A thermal zone
44 The \fB-h, --help\fP option shows a short usage help
46 The \fB-o <dir>, --output <dir>\fP option defines the output directory to put the
49 The \fB-c <config>, --config <config>\fP option specifies the configuration file to use
51 The \fB-d <seconds>, --duration <seconds>\fP option specifies the duration of the capture
53 The \fB-l <loglevel>, --loglevel <loglevel>\fP option sets the loglevel [DEBUG,INFO,NOTICE,WARN,ERR…
55 The \fB-p <string>, --postfix <string>\fP option appends \fBstring\fP at the end of the capture fil…
57 The \fB-s, --syslog\fP option sets the output to syslog, default is \fBstdout\fP
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx7d-flex-concentrator.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
11 #include "imx7d-tqma7.dtsi"
14 /delete-node/ &ds1339;
18 compatible = "kam,imx7d-flex-concentrator", "fsl,imx7d";
22 /* 1024 MB - TQMa7D board configuration */
26 reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
27 compatible = "regulator-fixed";
28 regulator-name = "VBUS_USBOTG2";
29 regulator-min-microvolt = <5000000>;
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/linux/drivers/firmware/arm_scmi/
H A Dsensors.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2018-2022 ARM Ltd.
8 #define pr_fmt(fmt) "SCMI Notifications SENSOR - " fmt
234 ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, in scmi_sensor_attributes_get()
239 attr = t->rx.buf; in scmi_sensor_attributes_get()
241 ret = ph->xops->do_xfer(ph, t); in scmi_sensor_attributes_get()
243 si->num_sensors = le16_to_cpu(attr->num_sensors); in scmi_sensor_attributes_get()
244 si->max_requests = attr->max_requests; in scmi_sensor_attributes_get()
245 si->reg_addr = le32_to_cpu(attr->reg_addr_low) | in scmi_sensor_attributes_get()
246 (u64)le32_to_cpu(attr->reg_addr_high) << 32; in scmi_sensor_attributes_get()
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/linux/Documentation/sound/codecs/
H A Dcs35l56.rst1 .. SPDX-License-Identifier: GPL-2.0-only
14 The high-level summary of this document is:
30 ---------------------------------
52 Firmware is distributed in the linux-firmware repository:
53 https://gitlab.com/kernel-firmware/linux-firmware.git
72 ---------------------------
79 firmware files in linux-firmware for these amplifiers. Firmware files are
82 Cirrus Logic submits files for known laptops to the upstream linux-firmware
85 to linux-firmware. You may need to upgrade to a newer release of
86 linux-firmware to obtain the firmware for your laptop.
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/linux/tools/perf/Documentation/
H A Dperf-diff.txt1 perf-diff(1)
5 ----
6 perf-diff - Read perf.data files and display the differential profile
9 --------
14 -----------
29 -------
30 -D::
31 --dump-raw-trace::
34 --kallsyms=<file>::
37 -m::
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H A Dperf-record.txt1 perf-record(1)
5 ----
6 perf-record - Run a command and record its profile into perf.data
9 --------
11 'perf record' [-e <EVENT> | --event=EVENT] [-a] <command>
12 'perf record' [-e <EVENT> | --event=EVENT] [-a] \-- <command> [<options>]
15 -----------
17 from it, into perf.data - without displaying anything.
23 -------
27 -e::
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/linux/include/linux/
H A Dtcp.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
31 return th->doff * 4; in __tcp_hdrlen()
46 return inner_tcp_hdr(skb)->doff * 4; in inner_tcp_hdrlen()
50 * skb_tcp_all_headers - Returns size of all headers for a TCP packet
65 * skb_inner_tcp_all_headers - Returns size of all headers for an encap TCP packet
70 * if (skb_is_gso(skb) && skb->encapsulatio
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H A Dpstore.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Persistent Storage - pstore.h
35 /* PPC64-specific partition types */
51 * struct pstore_record - details of a pstore record entry
54 * @id: per-type unique identifier for record
55 * @time: timestamp of the record
61 * kfree()d by the pstore core if non-NULL
89 * struct pstore_info - backend pstore driver structure
109 * @data: backend-private pointer passed back during callbacks
119 * Returns 0 on success, and non-zero on error.
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/linux/drivers/gpu/drm/msm/disp/
H A Dmsm_disp_snapshot.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
20 #include <linux/dma-buf.h>
38 * struct msm_disp_state - structure to store current dpu state
42 * @time: timestamp at which the coredump was captured
56 * struct msm_disp_state_block - structure to store each hardware block state
72 * msm_disp_snapshot_init - initialize display snapshot
75 * Returns: 0 or -ERROR
80 * msm_disp_snapshot_destroy - destroy the display snapshot
88 * msm_disp_snapshot_state_sync - synchronously snapshot display state
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/linux/scripts/
H A Dlink-vmlinux.sh2 # SPDX-License-Identifier: GPL-2.0
9 # (not within --whole-archive), and do not require symbol indexes added.
14 # +--< vmlinux.a
16 # +--<
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/linux/fs/fat/
H A Dnamei_msdos.c1 // SPDX-License-Identifier: GPL-2.0-only
14 /* Characters that are undesirable in an MS-DOS file name */
18 /***** Formats an MS-DOS file name. Rejects invalid names. */
23 * the resulting name, opts->name_check is either (r)elaxed, in msdos_format_name()
24 * (n)ormal or (s)trict, opts->dotsOK allows dots at the in msdos_format_name()
33 if (opts->dotsOK) { in msdos_format_name()
34 /* Get rid of dot - test for it elsewhere */ in msdos_format_name()
36 len--; in msdos_format_name()
38 return -EINVAL; in msdos_format_name()
41 * disallow names that _really_ start with a dot in msdos_format_name()
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/linux/Documentation/dev-tools/
H A Dgpio-sloppy-logic-analyzer.rst1 .. SPDX-License-Identifier: GPL-2.0
12 This document briefly describes how to run the GPIO based in-kernel sloppy
22 Another feature is to snoop on on-chip peripherals if the I/O cells of these
26 control subsystem such pin controllers are called "non-strict": a certain pin
31 non-deterministic code paths and non-maskable interrupts. It is called 'sloppy'
47 i2c-analyzer {
48 compatible = "gpio-sloppy-logic-analyzer";
49 probe-gpios = <&gpio6 21 GPIO_OPEN_DRAIN>, <&gpio6 4 GPIO_OPEN_DRAIN>;
50 probe-names = "SCL", "SDA";
62 ``tools/gpio/gpio-sloppy-logic-analyzer``. Besides checking parameters more
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/linux/Documentation/userspace-api/media/v4l/
H A Dhist-v4l2.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _hist-v4l2:
21 1998-08-20: First version.
23 1998-08-27: The :c:func:`select()` function was introduced.
25 1998-09-10: New video standard interface.
27 1998-09-18: The ``VIDIOC_NONCAP`` ioctl was replaced by the otherwise
36 1998-09-28: Revamped video standard. Made video controls individually
39 1998-10-02: The ``id`` field was removed from
47 1998-11-08: Many minor changes. Most symbols have been renamed. Some
50 1998-11-12: The read/write direction of some ioctls was misdefined.
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