| /linux/rust/kernel/ |
| H A D | faux.rs | 1 // SPDX-License-Identifier: GPL-2.0-only
5 //! This module provides bindings for working with faux devices in kernel modules.
19 /// `self.0` always holds a valid pointer to an initialized and registered [`struct faux_device`].
27 pub fn new(name: &CStr, parent: Option<&device::Device>) -> Result<Self> { in new() argument
29 // - `name` is copied by this function into its own storage in new()
30 // - `faux_ops` is safe to leave NULL according to the C API in new()
31 // - `parent` can be either NULL or a pointer to a `struct device`, and `faux_device_create` in new()
32 // will take a reference to `parent` using `device_add` - ensuring that it remains valid in new()
45 Ok(Self(NonNull::new(dev).ok_or(ENODEV)?)) in new()
48 fn as_raw(&self) -> *mut bindings::faux_device { in as_raw()
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| /linux/rust/kernel/sync/ |
| H A D | poll.rs | 1 // SPDX-License-Identifier: GPL-2.0
5 //! Utilities for working with `struct poll_table`.
15 /// Creates a [`PollCondVar`] initialiser with the given name and a newly-created lock class.
42 pub unsafe fn from_raw(table: *mut bindings::poll_table) -> Self { in from_raw() argument
52 pub fn register_wait(&self, file: &File, cv: &PollCondVar) { in register_wait() argument
55 // * `self.table` is null or references a valid poll_table for the duration of this call. in register_wait()
61 unsafe { bindings::poll_wait(file.as_ptr(), cv.wait_queue_head.get(), self.table) } in register_wait()
76 pub fn new(name: &'static CStr, key: Pin<&'static LockClassKey>) -> impl PinInit<Self> { in new() argument
77 pin_init!(Self { in new()
78 inner <- CondVar::new(name, key), in new()
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| H A D | atomic.rs | 1 // SPDX-License-Identifier: GPL-2.0
13 //! - A normal write from C side is treated as an atomic write if
15 //! - Mixed-size atomic accesses don't cause data races.
17 //! [`LKMM`]: srctree/tools/memory-model/
38 /// [`Atomic::as_ptr()`], this provides a way to interact with [C-side atomic operations]
44 /// `self.0` is a valid `T`.
47 /// [LKMM]: srctree/tools/memory-model/
48 /// [C-side atomic operations]: srctree/Documentation/atomic_t.txt
57 /// # Round-trip transmutability
59 /// `T` is round-trip transmutable to `U` if and only if both of these properties hold:
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| /linux/Documentation/mm/ |
| H A D | multigen_lru.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Multi-Gen LRU
6 The multi-gen LRU is an alternative LRU implementation that optimizes
14 ----------
20 * Simple self-correcting heuristics
23 implementations. In the multi-gen LRU, each generation represents a
25 (time-based) common frame of reference and therefore help make better
41 choices; thus self-correction is necessary.
43 The benefits of simple self-correcting heuristics are self-evident.
51 -----------
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| /linux/Documentation/devicetree/bindings/mfd/ |
| H A D | x-powers,axp152.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mfd/x-powers,axp152.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: X-Powers AXP PMIC
10 - Chen-Yu Tsai <wens@csie.org>
13 - if:
18 - x-powers,axp152
19 - x-powers,axp202
20 - x-powers,axp209
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| /linux/tools/testing/selftests/net/ |
| H A D | so_incoming_cpu.c | 1 // SPDX-License-Identifier: GPL-2.0
62 ASSERT_NE(fd, -1); in write_sysctl()
78 #define NR_PORT (60001 - 10000 - 1)
96 self->servers = malloc(sizeof(int) * nr_server); in FIXTURE_SETUP()
97 ASSERT_NE(self->servers, NULL); in FIXTURE_SETUP()
99 self->in_addr.sin_family = AF_INET; in FIXTURE_SETUP()
100 self->in_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); in FIXTURE_SETUP()
101 self->in_addr.sin_port = htons(0); in FIXTURE_SETUP()
102 self->addrlen = sizeof(struct sockaddr_in); in FIXTURE_SETUP()
110 close(self->servers[i]); in FIXTURE_TEARDOWN()
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| /linux/tools/testing/selftests/hid/ |
| H A D | hidraw.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2022-2024 Red Hat */
18 static void close_hidraw(FIXTURE_DATA(hidraw) * self) in close_hidraw()
20 if (self->hidraw_fd) in close_hidraw()
21 close(self->hidraw_fd);
22 self
15 close_hidraw(FIXTURE_DATA (hidraw)* self) close_hidraw() argument
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| /linux/scripts/gdb/linux/ |
| H A D | symbols.py | 6 # Copyright (c) Siemens AG, 2011-2013
25 def __init__(self, spec, gdb_command): argument
26 super(LoadModuleBreakpoint, self).__init__(spec, internal=True)
27 self.silent = True
28 self.gdb_command = gdb_command
30 def stop(self): argument
33 cmd = self.gdb_command
38 # Disable pagination while reporting symbol (re-)loading.
63 kaslr_offset_phys = paddr_vmcoreinfo_note - 1
65 gdb.execute("symbol-file {0} -o {1}".format(
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| /linux/scripts/kconfig/tests/ |
| H A D | conftest.py | 1 # SPDX-License-Identifier: GPL-2.0
24 This class provides methods to run text-based interface of Kconfig
30 def __init__(self, request): argument
36 self._test_dir = os.path.dirname(str(request.fspath))
39 def _run_conf(self, mode, dot_config=None, out_file='.config', argument
41 """Run text-based Kconfig executable and save the result.
43 mode: input mode option (--oldaskconfig, --defconfig=<file> etc.)
54 extra_env['srctree'] = self._test_dir
64 # if .config is given, copy it to the working directory
66 shutil.copyfile(os.path.join(self._test_dir, dot_config),
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| /linux/tools/testing/selftests/hid/tests/ |
| H A D | base_device.py | 2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
46 def __init__(self, path): argument
47 self.path = path
49 def __set_value(self, value): argument
50 with open(self.path, "w") as f:
53 def __get_value(self): argument
54 with open(self.path) as f:
58 def int_value(self) -> int: argument
59 return int(self.__get_value())
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| /linux/Documentation/networking/device_drivers/ethernet/cirrus/ |
| H A D | cs89x0.rst | 1 .. SPDX-License-Identifier: GPL-2.0
33 2.1 CS8900-based Adapter Configuration
34 2.2 CS8920-based Adapter Configuration
46 5.2.1 Diagnostic Self-Test
66 The CS8900-based ISA Ethernet Adapters from Cirrus Logic follow
67 IEEE 802.3 standards and support half or full-duplex operation in ISA bus
69 in 16-bit ISA or EISA bus expansion slots and are available in
70 10BaseT-only or 3-media configurations (10BaseT, 10Base2, and AUI for 10Base-5
73 CS8920-based adapters are similar to the CS8900-based adapter with additional
85 or loaded at run-time as a device driver module.
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|
| /linux/Documentation/trace/coresight/ |
| H A D | coresight-perf.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 CoreSight - Perf
15 perf record -e cs_etm//u testbinary
19 is working correctly. You can dump the content of this file as
22 perf report --stdio --dump -i perf.data
26 …ERF_RECORD_AUXTRACE size: 0x11dd0 offset: 0 ref: 0x1b614fc1061b0ad1 idx: 0 tid: 531230 cpu: -1
48 for the support such as libopencsd and libopencsd-dev or download it
60 ------------------------
81 Fine-grained tracing with AUX pause and resume
82 ----------------------------------------------
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|
| H A D | coresight-cpu-debug.rst | 9 ------------
11 Coresight CPU debug module is defined in ARMv8-a architecture reference manual
13 debug module and it is mainly used for two modes: self-hosted debug and
16 explore debugging method which rely on self-hosted debug mode, this document
19 The debug module provides sample-based profiling extension, which can be used
21 every CPU has one dedicated debug module to be connected. Based on self-hosted
29 --------------
31 - During driver registration, it uses EDDEVID and EDDEVID1 - two device ID
32 registers to decide if sample-based profiling is implemented or not. On some
36 - At the time this documentation was written, the debug driver mainly relies on
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|
| /linux/tools/perf/tests/shell/base_report/ |
| H A D | test_basic.sh | 3 # SPDX-License-Identifier: GPL-2.0
18 # include working environment
26 $CMD_PERF report --help > $LOGS_DIR/basic_helpmsg.log 2> $LOGS_DIR/basic_helpmsg.err
30 "PERF-REPORT" "NAME" "SYNOPSIS" "DESCRIPTION" "OPTIONS" \
34 "input" "verbose" "show-nr-samples" "show-cpu-utilization" \
35 "threads" "comms" "pid" "tid" "dsos" "symbols" "symbol-filter" \
39 "hide-unresolved" "sort" "fields" "parent" "exclude-other" \
40 "column-widths" "field-separator" "dump-raw-trace" "children" \
44 "call-graph" "max-stack" "inverted" "ignore-callees" "pretty" \
49 "force" "symfs" "cpu" "disassembler-style" "source" "asm-raw" \
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|
| /linux/tools/testing/selftests/ftrace/test.d/ftrace/ |
| H A D | func-filter-notrace-pid.tc | 2 # SPDX-License-Identifier: GPL-2.0
3 # description: ftrace - function pid notrace filters
11 if [ ! -f options/function-fork ]; then
13 echo "no option for function-fork found. Option will not be tested."
16 read PID _ < /proc/self/stat
18 if [ $do_function_fork -eq 1 ]; then
19 # default value of function-fork option
20 orig_value=`grep function-fork trace_options`
24 if [ $do_function_fork -eq 0 ]; then
47 if [ $do_function_fork -eq 1 ]; then
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|
| H A D | func-filter-pid.tc | 2 # SPDX-License-Identifier: GPL-2.0
3 # description: ftrace - function pid filters
13 if [ ! -f options/function-fork ]; then
15 echo "no option for function-fork found. Option will not be tested."
18 if [ ! -f options/funcgraph-proc ]; then
20 echo "no option for function-fork found. Option will not be tested."
23 read PID _ < /proc/self/stat
25 if [ $do_function_fork -eq 1 ]; then
26 # default value of function-fork option
27 orig_value=`grep function-fork trace_options`
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|
| /linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | rockchip,rk3399-dmc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/rockchip,rk3399-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Brian Norris <briannorris@chromium.org>
15 - rockchip,rk3399-dmc
17 devfreq-events:
26 clock-names:
28 - const: dmc_clk
30 operating-points-v2: true
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| /linux/Documentation/filesystems/iomap/ |
| H A D | porting.rst | 1 .. SPDX-License-Identifier: GPL-2.0
27 This worked well enough for direct/indirect-mapped filesystems such
28 as ext2, but is very inefficient for extent-based filesystems such
34 3. Direct access to storage on memory-like devices (fsdax) is only
40 No ->write_begin(), ->write_end() or direct_IO
49 Build the kernel, run fstests with the ``-g all`` option across a wide
53 The recommended approach is first to implement ``->iomap_begin`` (and
54 ``->iomap_end`` if necessary) to allow iomap to obtain a read-only
57 ``get_block()`` function for read-only mappings.
62 other read-only mapping operations will do the right thing.
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| /linux/arch/alpha/kernel/ |
| H A D | sys_eiger.c | 1 // SPDX-License-Identifier: GPL-2.0
39 static unsigned long cached_irq_mask[2] = { -1, -1 };
46 mask = (irq >= 64 ? mask << 16 : mask >> ((irq - 16) & 0x30)); in eiger_update_irq_hw()
47 regaddr = 0x510 + (((irq - 16) >> 2) & 0x0c); in eiger_update_irq_hw()
54 unsigned int irq = d->irq; in eiger_enable_irq()
63 unsigned int irq = d->irq; in eiger_disable_irq()
90 * OTOH, the accelerator thing doesn't seem to be working in eiger_device_interrupt()
116 int irq = (vector - 0x800) >> 4; in eiger_srm_device_interrupt()
134 eiger_update_irq_hw(i, -1); in eiger_init_irq()
154 so we subtract 80 because it is (90 - allocated ISA IRQ's). */ in eiger_map_irq()
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| /linux/drivers/usb/host/ |
| H A D | ohci-q.c | 1 // SPDX-License-Identifier: GPL-1.0+
6 * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
16 int last = urb_priv->length - 1; in urb_free_priv()
23 td = urb_priv->td [i]; in urb_free_priv()
29 list_del (&urb_priv->pending); in urb_free_priv()
33 /*-------------------------------------------------------------------------*/
42 __releases(ohci->lock) in finish_urb()
43 __acquires(ohci->lock) in finish_urb()
45 struct device *dev = ohci_to_hcd(ohci)->self.controller; in finish_urb()
46 struct usb_host_endpoint *ep = urb->ep; in finish_urb()
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| /linux/rust/pin-init/ |
| H A D | README.md | 1 [](https://crates.io/crates/pin-init)
2 [](https://docs.rs/pin-init/)
3 [](https://deps.rs/repo/github/Rust-for-Linux/pin-ini
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| /linux/lib/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
31 converting bitfields between a CPU-usable representation and a
33 - Is little endian (bytes are reversed within a 32-bit group)
34 - The least-significant 32-bit word comes first (within a 64-bit
36 - The most significant bit of a byte is at its right (bit 0 of a
51 please refer to the KUnit documentation in Documentation/dev-tools/kunit/.
62 This option enables the use of hardware bit-reversal instructions on
102 bool "Access I/O in non-MMIO mode"
108 mechanism, the host-local I/O resource can be mapped into system
110 system can access the I/O devices with the mapped-logic PIO through
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| /linux/tools/memory-model/Documentation/ |
| H A D | README | 4 Linux-kernel memory model (LKMM) audience might be anywhere from novice
12 If LKMM-specific terms lost you, glossary.txt might help you.
14 o You are new to Linux-kernel concurrency: simple.txt
16 o You have some background in Linux-kernel concurrency, and would
17 like an overview of the types of low-level concurrency primitives
22 o You are familiar with the Linux-kernel concurrency primitives
24 tests: litmus-tests.txt
30 recipes.txt, but is self-contained.
32 o You are familiar with Linux-kernel concurrency, and would
37 and cannot do to control dependencies: control-dependencies.txt
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| /linux/arch/arm64/boot/dts/allwinner/ |
| H A D | sun50i-h616-orangepi-zero2.dts | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 /dts-v1/;
8 #include "sun50i-h616-orangepi-zero.dtsi"
9 #include "sun50i-h616-cpu-opp.dtsi"
13 compatible = "xunlong,orangepi-zero2", "allwinner,sun50i-h616";
17 cpu-supply = <®_dcdca>;
21 allwinner,rx-delay-ps = <3100>;
22 allwinner,tx-delay-ps = <700>;
23 phy-mode = "rgmii";
24 phy-supply = <®_dcdce>;
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| /linux/arch/hexagon/kernel/ |
| H A D | kgdb.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * arch/hexagon/kernel/kgdb.c - Hexagon KGDB Support
5 * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
18 * Keep these at three letters to pretty-print. */
92 return -EINVAL; in dbg_set_reg()
106 /* Not yet working */
120 gdb_regs[0] = thread_regs->r00; in sleeping_thread_to_gdb_regs()
124 * kgdb_arch_handle_exception - Handle architecture specific GDB packets.
135 * they are handled here. The code should return -1 if it wants to
139 * Not yet working.
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