| /kernel/linux/linux-5.10/tools/testing/selftests/livepatch/ |
| D | test-callbacks.sh | 2 # SPDX-License-Identifier: GPL-2.0
19 # - On livepatch enable, before the livepatch transition starts,
20 # pre-patch callbacks are executed for vmlinux and $MOD_TARGET (those
22 # according to the klp_patch, their post-patch callbacks run and the
25 # - Similarly, on livepatch disable, pre-patch callbacks run before the
26 # unpatching transition starts. klp_objects are reverted, post-patch
43 $MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
47 $MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
52 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
56 $MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
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| /kernel/linux/linux-5.10/Documentation/livepatch/ |
| D | callbacks.rst | 5 Livepatch (un)patch-callbacks provide a mechanism for livepatch modules
10 - Safe updates to global data
12 - "Patches" to init and probe functions
14 - Patching otherwise unpatchable code (i.e. assembly)
25 - Module init/exit code doesn't run when disabling and re-enabling a
28 - A module notifier can't stop a to-be-patched module from loading.
39 * Pre-patch
40 - before a klp_object is patched
42 * Post-patch
43 - after a klp_object has been patched and is active
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| /kernel/linux/linux-5.10/drivers/clk/bcm/ |
| D | clk-kona.c | 15 #include "clk-kona.h"
20 #include <linux/clk-provider.h>
35 /* Produces a mask of set bits covering a range of a 32-bit value */
38 return ((1 << width) - 1) << shift; in bitfield_mask()
60 return (u64)reg_div + ((u64)1 << div->u.s.frac_width); in scaled_div_value()
76 combined <<= div->u.s.frac_width; in scaled_div_build()
86 return (u64)div->u.fixed; in scaled_div_min()
97 return (u64)div->u.fixed; in scaled_div_max()
99 reg_div = ((u32)1 << div->u.s.width) - 1; in scaled_div_max()
105 * Convert a scaled divisor into its divider representation as
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| /kernel/linux/linux-5.10/Documentation/scsi/ |
| D | lpfc.rst | 1 .. SPDX-License-Identifier: GPL-2.0
12 (pre 2.6.10). The 8.0.16 release should be used if the driver is to be
20 The driver now requires a 2.6.12 (if pre-release, 2.6.12-rc1) or later
33 jitter, or a device temporarily loses connectivity (due to its cable
39 errored by the driver, the mid-layer would exhaust its retries, and the
41 re-enable the device.
56 The proposed patch was posted to the linux-scsi mailing list. The patch
57 is contained in the 2.6.10-rc2 (and later) patch kits. As such, this
71 At this time, the driver requires the 2.6.12 (if pre-release, 2.6.12-rc1)
|
| /kernel/linux/linux-5.10/drivers/misc/echo/ |
| D | echo.h | 1 /* 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),
51 A simple refinement to NLMS can improve its performance with speech. NLMS tends
54 high frequency content. Pre-whitening (i.e. filtering the signal to flatten its
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| /kernel/linux/linux-5.10/drivers/ntb/hw/idt/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "IDT PCIe-switch Non-Transparent Bridge support"
7 This driver supports NTB of capable IDT PCIe-switches.
9 Some of the pre-initializations must be made before IDT PCIe-switch
10 exposes its NT-functions correctly. It should be done by either proper
12 by BIOS using slave-SMBus interface changing corresponding registers
17 the ports with NT-functions intended to be activated (see SWPARTxCTL
18 and SWPORTxCTL registers). Then all NT-function BARs must be enabled
25 BAR settings of peer NT-functions, the BAR setups can't be done over
26 kernel PCI fixups. That's why the alternative pre-initialization
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/phy/ |
| D | apm-xgene-phy.txt | 1 * APM X-Gene 15Gbps Multi-purpose PHY nodes
3 PHY nodes are defined to describe on-chip 15Gbps Multi-purpose PHY. Each
4 PHY (pair of lanes) has its own node.
7 - compatible : Shall be "apm,xgene-phy".
8 - reg : PHY memory resource is the SDS PHY access resource.
9 - #phy-cells : Shall be 1 as it expects one argument for setting
14 - status : Shall be "ok" if enabled or "disabled" if disabled.
16 - clocks : Reference to the clock entry.
17 - apm,tx-eye-tuning : Manual control to fine tune the capture of the serial
19 Two set of 3-tuple setting for each (up to 3)
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| /kernel/linux/linux-5.10/arch/x86/include/asm/ |
| D | paravirt_types.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
14 #define CLBR_ANY ((1 << 4) - 1)
30 #define CLBR_ANY ((1 << 9) - 1)
46 #include <asm/nospec-branch.h>
61 * Wrapper type for pointers to code which uses the non-standard
153 * read sets err to 0 or -EIO. write returns 0 or -EIO.
161 * Switch to usermode gs and return to 64-bit usermode using
162 * sysret. Only used in 64-bit kernels to return to 64-bit
224 /* Hooks for allocating and freeing a pagetable top-level */
277 /* Sometimes the physical address is a pfn, and sometimes its
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| /kernel/linux/linux-5.10/fs/erofs/ |
| D | utils.c | 1 // SPDX-License-Identifier: GPL-2.0-only
17 list_del(&page->lru); in erofs_allocpage()
47 return -1; in erofs_workgroup_get()
49 if (atomic_cmpxchg(&grp->refcount, o, o + 1) != o) in erofs_workgroup_get()
66 grp = xa_load(&sbi->managed_pslots, index); in erofs_find_workgroup()
74 DBG_BUGON(index != grp->index); in erofs_find_workgroup()
84 struct erofs_workgroup *pre; in erofs_insert_workgroup() local
91 atomic_inc(&grp->refcount); in erofs_insert_workgroup()
94 xa_lock(&sbi->managed_pslots); in erofs_insert_workgroup()
95 pre = __xa_cmpxchg(&sbi->managed_pslots, grp->index, in erofs_insert_workgroup()
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| /kernel/linux/linux-5.10/drivers/platform/x86/ |
| D | apple-gmux.c | 1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (C) 2010-2012 Andreas Heider <andreas@meetr.de>
19 #include <linux/apple-gmux.h>
31 * A `Lattice XP2`_ on pre-retinas, a `Renesas R4F2113`_ on retinas.
34 * dual GPUs but no built-in display.)
36 * gmux is connected to the LPC bus of the southbridge. Its I/O ports are
38 * to access a pre-retina gmux are infixed ``_pio_``, those for a retina gmux
104 return inb(gmux_data->iostart + port); in gmux_pio_read8()
110 outb(val, gmux_data->iostart + port); in gmux_pio_write8()
115 return inl(gmux_data->iostart + port); in gmux_pio_read32()
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| /kernel/linux/linux-5.10/Documentation/driver-api/media/ |
| D | dtv-frontend.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 ------------------------
9 The Digital TV Frontend kABI defines a driver-internal interface for
10 registering low-level, hardware specific driver to a hardware independent
29 .name = "foo DVB-T/T2/C driver",
70 .name = "Bar DVB-S/S2 demodulator",
91 /* Satellite-specific */
100 #) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the
128 doesn't fill its field at struct dvb_frontend_ops, it will default to
129 ``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning,
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/interrupt-controller/ |
| D | arm,gic-v3.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/arm,gic-v3.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marc Zyngier <marc.zyngier@arm.com>
15 Software Generated Interrupts (SGI), and Locality-specific Peripheral
19 - $ref: /schemas/interrupt-controller.yaml#
24 - items:
25 - enum:
26 - qcom,msm8996-gic-v3
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| /kernel/linux/linux-5.10/tools/testing/selftests/tc-testing/ |
| D | TODO.txt | 1 tc Testing Suite To-Do list:
3 - Determine what tc features are supported in the kernel. If features are not
6 - Add support for multiple versions of tc to run successively
8 - Improve error messages when tdc aborts its run. Partially done - still
9 need to better handle problems in pre- and post-suite.
11 - Use python logger module for debug/verbose output
13 - Allow tdc to write its results to file.
16 - A better implementation of the "hooks". Currently, every plugin
23 - Proper exception handling - make an exception class and use it
25 - a TestCase class, for easier testcase handling, searching, comparison
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| D | README | 1 tdc - Linux Traffic Control (tc) unit testing suite
3 Author: Lucas Bates - lucasb@mojatatu.com
10 ------------
24 * All tc-related features being tested must be built in or available as
26 ./tdc.py -c
30 teardown commands - which includes not being able to run a test simply
32 handled in a future version - the current workaround is to run the tests
37 --------------
44 using the -p option when running tdc:
45 ./tdc.py -p /path/to/tc
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| /kernel/linux/linux-5.10/Documentation/networking/ |
| D | framerelay.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 Data Link Connection Identifier (DLCI) as its hardware address. Usually these
13 Each DLCI is a point-to-point link between your machine and a remote one.
15 net-tools archives is 'dlcicfg'. This program will communicate with the
31 Configuration of the FRAD makes use of another net-tools program, 'fradcfg'.
41 the net-tools distribution. They can be found at ftp.invlogic.com, in
43 use 'cd linux'. v0.10 is for use on pre-2.0.3 and earlier, v0.15 is for
44 pre-2.0.4 and later.
|
| /kernel/linux/linux-5.10/sound/core/ |
| D | pcm_memory.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
40 card->total_pcm_alloc_bytes + size > max_alloc_per_card) in do_alloc_pages()
41 return -ENOMEM; in do_alloc_pages()
45 mutex_lock(&card->memory_mutex); in do_alloc_pages()
46 card->total_pcm_alloc_bytes += dmab->bytes; in do_alloc_pages()
47 mutex_unlock(&card->memory_mutex); in do_alloc_pages()
54 if (!dmab->area) in do_free_pages()
56 mutex_lock(&card->memory_mutex); in do_free_pages()
57 WARN_ON(card->total_pcm_alloc_bytes < dmab->bytes); in do_free_pages()
58 card->total_pcm_alloc_bytes -= dmab->bytes; in do_free_pages()
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| /kernel/linux/linux-5.10/Documentation/admin-guide/media/ |
| D | imx.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 ------------
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
27 packed <--> planar conversion. The IDMAC can also perform a simple
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| /kernel/linux/linux-5.10/Documentation/filesystems/ |
| D | orangefs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 OrangeFS is an LGPL userspace scale-out parallel storage system. It is ideal
51 On Fedora, install orangefs and orangefs-server::
53 dnf -y install orangefs orangefs-server
64 pvfs2-client-core.
68 pvfs2-server -f /etc/orangefs/orangefs.conf
72 systemctl start orangefs-server
76 pvfs2-ping -m /pvfsmnt
81 systemctl start orangefs-client
85 mount -t pvfs2 tcp://localhost:3334/orangefs /pvfsmnt
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| /kernel/linux/linux-5.10/Documentation/sound/soc/ |
| D | machine.rst | 12 the following struct:-
24 /* the pre and post PM functions are used to do any PM work before and
33 /* CPU <--> Codec DAI links */
41 ----------------
46 ------------------
47 The machine driver has pre and post versions of suspend and resume to take care
53 -------------------------
62 /* corgi digital audio interface glue - connects codec <--> CPU */
66 .cpu_dai_name = "pxa-is2-dai",
67 .codec_dai_name = "wm8731-hifi",
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| /kernel/linux/linux-5.10/drivers/virt/vboxguest/ |
| D | vboxguest_core.h | 1 /* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
2 /* Copyright (C) 2010-2016 Oracle Corporation */
39 /** Pre-allocated vmmdev_memballoon_info req for query */
41 /** Pre-allocated vmmdev_memballoon_change req for inflate / deflate */
78 * Dummy page and vmap address for reserved kernel virtual-address
87 /** Wait-for-event list for threads waiting for multiple events. */
91 /** Wait-for-event list for threads waiting on HGCM async completion. */
93 /** Pre-allocated hgcm cancel2 req. for cancellation on timeout */
97 /** Pre-allocated mouse-status request for the input-device handling. */
144 * cNsHearbeatInterval and its handler sends
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| /kernel/linux/linux-5.10/Documentation/admin-guide/ |
| D | init.rst | 6 This document provides some high-level reasons for failure
16 modules, to be pre-loaded by an initrd).
19 --> initial console unavailable. E.g. some serial consoles are unreliable
20 due to serial IRQ issues (e.g. missing interrupt-based configuration).
24 dependencies of the init binary such as ``/lib/ld-linux.so.2`` missing or
25 broken. Use ``readelf -d <INIT>|grep NEEDED`` to find out which libraries
30 hardware. In case you tried loading a non-binary file here (shell script?),
31 you should make sure that the script specifies an interpreter in its
32 shebang header line (``#!/...``) that is fully working (including its
34 simple non-script binary such as ``/bin/sh`` and confirm its successful
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| /kernel/linux/linux-5.10/Documentation/RCU/ |
| D | rcubarrier.rst | 8 RCU (read-copy update) is a synchronization mechanism that can be thought
9 of as a replacement for read-writer locking (among other things), but with
10 very low-overhead readers that are immune to deadlock, priority inversion,
11 and unbounded latency. RCU read-side critical sections are delimited
12 by rcu_read_lock() and rcu_read_unlock(), which, in non-CONFIG_PREEMPT
18 pre-existing readers have finished. These old versions are needed because
20 rather expensive, and RCU is thus best suited for read-mostly situations.
25 pre-existing readers have completed. An updater wishing to delete an
33 But the above code cannot be used in IRQ context -- the call_rcu()
35 rcu_head struct placed within the RCU-protected data structure and
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| /kernel/linux/linux-5.10/Documentation/driver-api/nvdimm/ |
| D | btt.rst | 2 BTT - Block Translation Table
14 using stored energy in capacitors to complete in-flight block writes, or perhaps
15 in firmware. We don't have this luxury with persistent memory - if a write is in
22 device, and reserves a portion of the underlying storage for its metadata. At
23 the heart of it, is an indirection table that re-maps all the blocks on the
35 Each arena follows the same layout for its metadata, and all references in an
37 next arena). The following depicts the "On-disk" metadata layout::
40 Backing Store +-------> Arena
41 +---------------+ | +------------------+
43 | Arena 0 +---+ | 4K |
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| /kernel/linux/linux-5.10/drivers/gpu/drm/ |
| D | drm_blend.c | 8 * Permission to use, copy, modify, distribute, and sell this software and its
43 * sub-pixel accuracy, which is scaled up to a pixel-aligned destination
96 * plane-wide opacity, from transparent (0) to opaque (0xffff). It can be
99 * pre-multiplied by the global alpha associated to the plane.
109 * "rotate-<degrees>":
113 * "reflect-<axis>":
117 * reflect-x::
120 * | | -> | |
123 * reflect-y::
126 * | | -> | |
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| /kernel/linux/linux-5.10/Documentation/driver-api/pm/ |
| D | devices.rst | 1 .. SPDX-License-Identifier: GPL-2.0
10 :Copyright: |copy| 2010-2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
18 management (PM) code is also driver-specific. Most drivers will do very
22 This writeup gives an overview of how drivers interact with system-wide
25 background for the domain-specific work you'd do with any specific driver.
31 Drivers will use one or both of these models to put devices into low-power
36 Drivers can enter low-power states as part of entering system-wide
37 low-power states like "suspend" (also known as "suspend-to-RAM"), or
39 "suspend-to-disk").
42 by implementing various role-specific suspend and resume methods to
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