| /linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | memory.rst | 8 here but make sure to check the current code if you need a deeper
18 we call it "memory cgroup". When you see git-log and source code, you'll
30 Memory-hungry applications can be isolated and limited to a smaller
42 Current Status: linux-2.6.34-mmotm(development version of 2010/April)
46 - accounting anonymous pages, file caches, swap caches usage and limiting them.
47 - pages are linked to per-memcg LRU exclusively, and there is no global LRU.
48 - optionally, memory+swap usage can be accounted and limited.
49 - hierarchical accounting
50 - soft limit
51 - moving (recharging) account at moving a task is selectable.
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| /linux/Documentation/devicetree/bindings/power/supply/ |
| H A D | bq256xx.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Andrew Davis <afd@ti.com>
14 The bq256xx devices are a family of highly-integrated battery charge
15 management and system power management ICs for single cell Li-ion and Li-
19 - https://www.ti.com/lit/ds/symlink/bq25600.pdf
20 - https://www.ti.com/lit/ds/symlink/bq25601.pdf
21 - https://www.ti.com/lit/ds/symlink/bq25600d.pdf
22 - https://www.ti.com/lit/ds/symlink/bq25601d.pdf
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|
| H A D | battery.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Sebastian Reichel <sre@kernel.org>
14 In smart batteries, these are typically stored in non-volatile memory
16 no appropriate non-volatile memory, or it is unprogrammed/incorrect.
27 Batteries must be referenced by chargers and/or fuel-gauges using a phandle.
28 The phandle's property should be named "monitored-battery".
32 const: simple-battery
34 device-chemistry:
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|
| /linux/Documentation/devicetree/bindings/iio/adc/ |
| H A D | adi,ad4695.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <Michael.Hennerich@analog.com>
11 - Nuno Sá <nuno.sa@analog.com>
14 A family of similar multi-channel analog to digital converters with SPI bus.
21 $ref: /schemas/spi/spi-peripheral-props.yaml#
26 - adi,ad4695
27 - adi,ad4696
28 - adi,ad4697
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|
| /linux/Documentation/process/ |
| H A D | maintainer-kvm-x86.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 --------
17 -----
21 -----
25 specific tree, ``github.com/kvm-x86/linux.git``.
27 Generally speaking, fixes for the current cycle are applied directly to the
29 KVM x86 tree. In the unlikely event that a fix for the current cycle is routed
39 using finer-grained topic branches is to make it easier to keep tabs on an area
40 of development, and to limit the collateral damage of human errors and/or buggy
41 commits, e.g. dropping the HEAD commit of a topic branch has no impact on other
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|
| /linux/Documentation/devicetree/bindings/leds/ |
| H A D | common.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 LED and flash LED devices provide the same basic functionality as current
18 Many LED devices expose more than one current output that can be connected
25 led-sources:
27 List of device current outputs the LED is connected to. The outputs are
30 $ref: /schemas/types.yaml#/definitions/uint32-array
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|
| /linux/Documentation/filesystems/ |
| H A D | path-lookup.rst | 5 This write-up is based on three articles published at lwn.net:
7 - <https://lwn.net/Articles/649115/> Pathname lookup in Linux
8 - <https://lwn.net/Articles/649729/> RCU-walk: faster pathname lookup in Linux
9 - <https://lwn.net/Articles/650786/> A walk among the symlinks
15 - per-directory parallel name lookup.
16 - ``openat2()`` resolution restriction flags.
27 the early parts of the analysis we will divide off symlinks - leaving
30 will allow us to review "REF-walk" and "RCU-walk" separately. But we
35 --------------------------
37 .. _openat: http://man7.org/linux/man-pages/man2/openat.2.html
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|
| /linux/drivers/net/ethernet/engleder/ |
| H A D | tsnep_tc.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
9 #define TSNEP_MAX_GCL_NUM (TSNEP_GCL_COUNT - 1)
16 if (!qopt->cycle_time) in tsnep_validate_gcl()
17 return -ERANGE; in tsnep_validate_gcl()
18 if (qopt->num_entries > TSNEP_MAX_GCL_NUM) in tsnep_validate_gcl()
19 return -EINVAL; in tsnep_validate_gcl()
21 for (i = 0; i < qopt->num_entries; i++) { in tsnep_validate_gcl()
22 if (qopt->entries[i].command != TC_TAPRIO_CMD_SET_GATES) in tsnep_validate_gcl()
23 return -EINVAL; in tsnep_validate_gcl()
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| /linux/include/soc/tegra/ |
| H A D | bpmp-abi.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2014-2022, NVIDIA CORPORATION. All rights reserved.
58 * message consists of a @ref mrq_request followed by a payload whose
63 * consists of a @ref mrq_response followed by a payload whose format
66 * A well-defined subset of the MRQ messages that the CPU sends to the
130 * -BPMP_EBADMSG and ignore the request.
144 …* | -------------------- | ------------------------------------ | --------------------------------…
223 * calculated by BPMP, -BPMP_EBADMSG will be returned and the request will
402 * @defgroup CC3 Auto-CC3
420 * * Request Payload: @ref mrq_ping_request
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|
| /linux/Documentation/scheduler/ |
| H A D | sched-util-clamp.rst | 1 .. SPDX-License-Identifier: GPL-2.0
44 performance point required by its display pipeline to ensure no frame is
57 foreground, top-app, etc. Util clamp can be used to constrain how much
60 the ones belonging to the currently active app (top-app group). Beside this
65 1. The big cores are free to run top-app tasks immediately. top-app
106 Note that by design RT tasks don't have per-task PELT signal and must always
114 See :ref:`section 3.4 <uclamp-default-values>` for default values and
115 :ref:`3.4.1 <sched-util-clamp-min-rt-default>` on how to change RT tasks
150 task on the rq to only a subset of tasks on the top-most bucket.
156 As tasks are enqueued and dequeued, we keep track of the current effective
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|
| /linux/drivers/infiniband/sw/siw/ |
| H A D | siw_mem.c | 1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
4 /* Copyright (c) 2008-2019, IBM Corporation */
9 #include <linux/dma-mapping.h>
26 struct xa_limit limit = XA_LIMIT(1, SIW_STAG_MAX_INDEX); in siw_mem_add() local
32 if (xa_alloc_cyclic(&sdev->mem_xa, &id, m, limit, &next, in siw_mem_add()
34 return -ENOMEM; in siw_mem_add()
37 m->stag = id << 8; in siw_mem_add()
56 mem = xa_load(&sdev->mem_xa, stag_index); in siw_mem_id2obj()
57 if (likely(mem && kref_get_unless_zero(&mem->ref))) { in siw_mem_id2obj()
68 int i, num_pages = umem->num_pages; in siw_umem_release()
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|
| /linux/Documentation/devicetree/bindings/connector/ |
| H A D | usb-connector.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/connector/usb-connector.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
20 - enum:
21 - usb-a-connector
22 - usb-b-connector
23 - usb-c-connector
25 - items:
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|
| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | crop.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
6 Image Cropping, Insertion and Scaling -- the CROP API
11 The CROP API is mostly superseded by the newer :ref:`SELECTION API
12 <selection-api>`. The new API should be preferred in most cases,
14 implemented by :ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>` and has no
15 equivalent in the SELECTION API. See :ref:`selection-vs-crop` for a
29 Despite their name, the :ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>`,
30 :ref:`VIDIOC_G_CROP <VIDIOC_G_CROP>` and :ref:`VIDIOC_S_CROP
37 overlay) is negotiated with the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
38 and :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctls.
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|
| H A D | func-open.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _func-open:
13 v4l2-open - Open a V4L2 device
18 .. code-block:: c
36 function and the :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl will
37 return the ``EAGAIN`` error code when no data is available or no
42 Other flags have no effect.
48 desired device name. This function has no side effects; all data format
49 parameters, current input or output, control values or other properties
58 -1 is returned, and the ``errno`` variable is set appropriately.
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|
| H A D | mmap.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 :ref:`VIDIOC_QUERYCAP` ioctl is set. There are two
15 supported applications must call the :ref:`VIDIOC_REQBUFS` ioctl
22 memory on a graphics card with a video capture add-on. However, being
24 drivers support streaming as well, allocating buffers in DMA-able main
33 :ref:`VIDIOC_REQBUFS` ioctl with the desired number
41 :ref:`VIDIOC_QUERYBUF` ioctl. In the single-planar
45 multi-planar API, struct :c:type:`v4l2_buffer` contains an
48 multi-planar API, every plane of every buffer has to be mapped
56 Example: Mapping buffers in the single-planar API
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|
| /linux/tools/perf/Documentation/ |
| H A D | perf-config.txt | 1 perf-config(1)
5 ----
6 perf-config - Get and set variables in a configuration file.
9 --------
11 'perf config' [<file-option>] [section.name[=value] ...]
13 'perf config' [<file-option>] -l | --list
16 -----------
20 -------
22 -l::
23 --list::
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|
| /linux/block/ |
| H A D | bfq-iosched.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * BFQ is a proportional-share I/O scheduler, with some extra
17 * low-latency capabilities. BFQ also supports full hierarchical
20 * limitations can be found in Documentation/block/bfq-iosched.rst.
22 * BFQ is a proportional-share storage-I/O scheduling algorithm based
23 * on the slice-by-slice service scheme of CFQ. But BFQ assigns
25 * time slices. The device is not granted to the in-service process
31 * B-WF2Q+, to schedule processes according to their budgets. More
33 * process/queue is assigned a user-configurable weight, and B-WF2Q+
36 * B-WF2Q+, BFQ can afford to assign high budgets to I/O-bound
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|
| /linux/Documentation/admin-guide/ |
| H A D | cgroup-v2.rst | 1 .. _cgroup-v2:
11 conventions of cgroup v2. It describes all userland-visible aspects
14 v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgroup-v1>`.
19 1-1. Terminology
20 1-2. What is cgroup?
22 2-1. Mounting
23 2-2. Organizing Processes and Threads
24 2-2-1. Processes
25 2-2-2. Threads
26 2-3. [Un]populated Notification
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|
| /linux/drivers/s390/scsi/ |
| H A D | zfcp_ccw.c | 1 // SPDX-License-Identifier: GPL-2.0
27 adapter = dev_get_drvdata(&cdev->dev); in zfcp_ccw_adapter_by_cdev()
29 kref_get(&adapter->ref); in zfcp_ccw_adapter_by_cdev()
39 kref_put(&adapter->ref, zfcp_adapter_release); in zfcp_ccw_adapter_put()
44 * zfcp_ccw_activate - activate adapter and wait for it to finish
63 * rate limit. Recovery has already scheduled a port scan for us, in zfcp_ccw_activate()
64 * but with both random delay and rate limit. Nevertheless we get in zfcp_ccw_activate()
69 * and port scan. If not, i.e. recovery takes ages, there was no in zfcp_ccw_activate()
75 flush_delayed_work(&adapter->scan_work); in zfcp_ccw_activate()
90 * zfcp_ccw_probe - probe function of zfcp driver
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|
| /linux/Documentation/admin-guide/sysctl/ |
| H A D | fs.rst | 11 ------------------------------------------------------------------------------
31 aio-nr & aio-max-nr
32 -------------------
34 ``aio-nr`` shows the current system-wide number of asynchronous io
35 requests. ``aio-max-nr`` allows you to change the maximum value
36 ``aio-nr`` can grow to. If ``aio-nr`` reaches ``aio-nr-max`` then
38 ``aio-max-nr`` does not result in the
39 pre-allocation or re-sizing of any kernel data structures.
42 dentry-state
43 ------------
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|
| /linux/Documentation/devicetree/bindings/mfd/ |
| H A D | st,stmpe.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
15 - Linus Walleij <linus.walleij@linaro.org>
18 - $ref: /schemas/spi/spi-peripheral-props.yaml#
23 - st,stmpe601
24 - st,stmpe801
25 - st,stmpe811
26 - st,stmpe1600
27 - st,stmpe1601
[all …]
|
| /linux/Documentation/core-api/ |
| H A D | workqueue.rst | 24 there is no work item left on the workqueue the worker becomes idle.
33 thread system-wide. A single MT wq needed to keep around the same
50 limitation that no two polling PIOs can progress at the same time. As
60 * Use per-CPU unified worker pools shared by all wq to provide
83 the functions off of the queue, one after the other. If no work is queued,
85 worker-pools.
87 The cmwq design differentiates between the user-facing workqueues that
89 which manages worker-pools and processes the queued work items.
91 There are two worker-pools, one for normal work items and the other
93 worker-pools to serve work items queued on unbound workqueues - the
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|
| /linux/Documentation/admin-guide/mm/damon/ |
| H A D | usage.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 - *DAMON user space tool.*
11 system administrators who want a just-working human-friendly interface.
12 Using this, users can use the DAMON’s major features in a human-friendly way.
16 - *sysfs interface.*
17 :ref:`This <sysfs_interface>` is for privileged user space programmers who
23 - *Kernel Space Programming Interface.*
29 - *debugfs interface. (DEPRECATED!)*
30 :ref:`This <debugfs_interface>` is almost identical to :ref:`sysfs interface
32 :ref:`sysfs interface <sysfs_interface>`. If you depend on this and cannot
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|
| /linux/Documentation/bpf/ |
| H A D | bpf_design_QA.rst | 19 -------------------------------------------------------------
20 A: NO.
23 -------------------------------------
24 A: NO.
27 -----------------------------------------------------------
41 A: NO. BPF allows only register R0 to be used as return value.
45 A: NO. BPF calling convention only allows registers R1-R5 to be used
50 -----------------------------------------------------------------
51 A: NO.
54 ------------------------------------------
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|
| /linux/Documentation/admin-guide/pm/ |
| H A D | sleep-states.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 Sleep states are global low-power states of the entire system in which user
28 Suspend-to-Idle
29 ---------------
31 This is a generic, pure software, light-weight variant of system suspend (also
34 I/O devices into low-power states (possibly lower-power than available in the
38 The system is woken up from this state by in-band interrupts, so theoretically
42 This state can be used on platforms without support for :ref:`standby <standby>`
43 or :ref:`suspend-to-RAM <s2ram>`, or it can be used in addition to any of the
50 -------
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|