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/linux-5.10/tools/testing/selftests/ftrace/test.d/direct/
Dkprobe-direct.tc2 # SPDX-License-Identifier: GPL-2.0
6 rmmod ftrace-direct ||:
7 if ! modprobe ftrace-direct ; then
8 echo "No ftrace-direct sample module - please build with CONFIG_SAMPLE_FTRACE_DIRECT=m"
15 grep -q "my_direct_func: waking up" trace
17 rmmod ftrace-direct
23 modprobe ftrace-direct
25 grep -q "my_direct_func: waking up" trace
29 rmmod ftrace-direct
36 grep -q "kwake:" trace
[all …]
Dftrace-direct.tc2 # SPDX-License-Identifier: GPL-2.0
5 rmmod ftrace-direct ||:
6 if ! modprobe ftrace-direct ; then
7 echo "No ftrace-direct sample module - please make CONFIG_SAMPLE_FTRACE_DIRECT=m"
14 grep -q "my_direct_func: waking up" trace
16 rmmod ftrace-direct
21 # tracer -> direct -> no direct > no tracer
23 modprobe ftrace-direct
24 rmmod ftrace-direct
27 # tracer -> direct -> no tracer > no direct
[all …]
/linux-5.10/drivers/gpu/drm/i915/gt/
Dintel_breadcrumbs_types.h1 /* SPDX-License-Identifier: MIT */
16 * with the herd waking after every interrupt and each doing the
18 * bottom-half of the user interrupt) to the first client. After
19 * every interrupt, we wake up one client, who does the heavyweight
21 * or wakes up all the completed clients in parallel, before then
22 * transferring the bottom-half status to the next client in the queue.
25 * bottom-half, we reduce the latency of the first waiter by avoiding
29 * the overhead of waking that client is much preferred.
/linux-5.10/tools/perf/bench/
Dfutex-wake-parallel.c1 // SPDX-License-Identifier: GPL-2.0
27 #include <subcmd/parse-options.h>
47 /* all threads will block on the same futex -- hash bucket chaos ;) */
62 OPT_UINTEGER('w', "nwakers", &nwaking_threads, "Specify amount of waking threads"),
69 "perf bench futex wake-parallel <options>",
82 waker->nwoken = futex_wake(&futex, nwakes, futex_flag); in waking_workerfn()
83 if (waker->nwoken != nwakes) in waking_workerfn()
85 waker->nwoken, nwakes); in waking_workerfn()
88 timersub(&end, &start, &waker->runtime); in waking_workerfn()
105 * Thread creation order will impact per-thread latency in wakeup_threads()
[all …]
Dfutex-wake.c1 // SPDX-License-Identifier: GPL-2.0
5 * futex-wake: Block a bunch of threads on a futex and wake'em up, N at a time.
8 * in non-error situations: all waiters are queued and all wake calls wakeup
18 #include <subcmd/parse-options.h>
65 threads_starting--; in workerfn()
86 printf("Wokeup %d of %d threads in %.4f ms (+-%.2f%%)\n", in print_summary()
104 CPU_SET(cpu->map[i % cpu->nr], &cpuset); in block_threads()
145 nthreads = cpu->nr; in bench_futex_wake()
155 "waking up %d at a time.\n\n", in bench_futex_wake()
181 /* Ok, all threads are patiently blocked, start waking folks up */ in bench_futex_wake()
Dfutex.h1 /* SPDX-License-Identifier: GPL-2.0 */
17 * futex() - SYS_futex syscall wrapper
34 * like-named arguments in the following wrappers except where noted below.
40 * futex_wait() - block on uaddr with optional timeout
50 * futex_wake() - wake one or more tasks blocked on uaddr
51 * @nr_wake: wake up to this many tasks
60 * futex_lock_pi() - block on uaddr as a PI mutex
69 * futex_unlock_pi() - release uaddr as a PI mutex, waking the top waiter
78 * futex_cmp_requeue() - requeue tasks from uaddr to uaddr2
79 * @nr_wake: wake up to this many tasks
[all …]
/linux-5.10/Documentation/devicetree/bindings/net/
Dfsl-tsec-phy.txt5 the definition of the PHY node in booting-without-of.txt for an example
9 - reg : Offset and length of the register set for the device, and optionally
14 - compatible : Should define the compatible device type for the
16 - "fsl,gianfar-tbi"
17 - "fsl,gianfar-mdio"
18 - "fsl,etsec2-tbi"
19 - "fsl,etsec2-mdio"
20 - "fsl,ucc-mdio"
21 - "fsl,fman-mdio"
23 - "gianfar"
[all …]
Dmacb.txt4 - compatible: Should be "cdns,[<chip>-]{macb|gem}"
5 Use "cdns,at91rm9200-emac" Atmel at91rm9200 SoC.
6 Use "cdns,at91sam9260-macb" for Atmel at91sam9 SoCs.
7 Use "cdns,sam9x60-macb" for Microchip sam9x60 SoC.
8 Use "cdns,np4-macb" for NP4 SoC devices.
9 Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
10 Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
12 Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.
13 Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs.
14 Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
[all …]
/linux-5.10/include/linux/sched/
Dsd_flags.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * sched-domains (multiprocessor balancing) flag declarations.
48 * SHARED_CHILD: Set from the base domain up to cpuset.sched_relax_domain_level.
56 * SHARED_CHILD: Set from the base domain up to the NUMA reclaim level.
64 * SHARED_CHILD: Set from the base domain up to the NUMA reclaim level.
72 * SHARED_CHILD: Set from the base domain up to cpuset.sched_relax_domain_level.
78 * Consider waking task on waking CPU.
80 * SHARED_CHILD: Set from the base domain up to the NUMA reclaim level.
89 * NEEDS_GROUPS: Per-CPU capacity is asymmetric between groups.
96 * SHARED_CHILD: Set from the base domain up until spanned CPUs no longer share
[all …]
/linux-5.10/Documentation/locking/
Dfutex-requeue-pi.rst5 Requeueing of tasks from a non-PI futex to a PI futex requires
8 boosting logic [see rt-mutex-desgin.txt] For the purposes of
14 ----------
17 pthread_cond_broadcast() must resort to waking all the tasks waiting
19 gets to run first in classic thundering-herd formation. An ideal
20 implementation would wake the highest-priority waiter, and leave the
29 lock(cond->__data.__lock);
32 unlock(cond->__data.__lock);
33 futex_wait(cond->__data.__futex);
34 lock(cond->__data.__lock);
[all …]
/linux-5.10/Documentation/devicetree/bindings/input/touchscreen/
Degalax-ts.txt4 - compatible: must be "eeti,egalax_ts"
5 - reg: i2c slave address
6 - interrupts: touch controller interrupt
7 - wakeup-gpios: the gpio pin to be used for waking up the controller
15 interrupt-parent = <&gpio1>;
17 wakeup-gpios = <&gpio1 9 0>;
/linux-5.10/include/trace/events/
Dsched.h1 /* SPDX-License-Identifier: GPL-2.0 */
27 memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
28 __entry->pid = t->pid;
31 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
48 __entry->ret = ret;
51 TP_printk("ret=%d", __entry->ret)
55 * Tracepoint for waking up a task:
72 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
73 __entry->pid = p->pid;
74 __entry->prio = p->prio; /* XXX SCHED_DEADLINE */
[all …]
/linux-5.10/drivers/net/wireless/ath/ath10k/
Dpci.h1 /* SPDX-License-Identifier: ISC */
3 * Copyright (c) 2005-2011 Atheros Communications Inc.
4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
31 * PCI-specific Target state
36 * HOST_INTEREST->hi_interconnect_state points here
37 * (and all members are 32-bit quantities in order to
79 /* Per-pipe state. */
130 * bootup. To do that the original PCI-E Link Control is stored before
131 * device bootup is executed and re-programmed later.
138 /* The device has a special powersave-oriented register. When device is
[all …]
/linux-5.10/Documentation/ABI/testing/
Dsysfs-driver-intel-rapid-start1 What: /sys/bus/acpi/intel-rapid-start/wakeup_events
15 What: /sys/bus/acpi/intel-rapid-start/wakeup_time
20 remain asleep before waking up to enter hibernation.
/linux-5.10/samples/ftrace/
Dftrace-direct.c1 // SPDX-License-Identifier: GPL-2.0-only
9 trace_printk("waking up %s-%d\n", p->comm, p->pid); in my_direct_func()
26 " .size my_tramp, .-my_tramp\n"
/linux-5.10/arch/arm/mach-tegra/
Dreset-handler.S1 /* SPDX-License-Identifier: GPL-2.0-only */
13 #include <asm/asm-offsets.h>
28 * re-enabling sdram.
72 /* L2 cache resume & re-enable */
104 * r0=3 for the wake-up notification.
133 * must be position-independent.
154 # Tegra20 is a Cortex-A9 r1p1
170 # Tegra30 is a Cortex-A9 r2p9
191 /* Waking up from LP1? */
204 /* Waking up from LP2? */
[all …]
/linux-5.10/include/linux/platform_data/
Dkeypad-nomadik-ske.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) ST-Ericsson SA 2010
30 * struct keypad_platform_data - structure for platform specific data
38 * @wakeup_enable: allow waking up the system
/linux-5.10/drivers/net/wireless/intel/iwlegacy/
Dcsr.h8 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
70 * low power states due to driver-invoked device resets
71 * (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
74 * these provide simple PCI bus access, without waking up the MAC.
77 * The MAC (uCode processor, etc.) does not need to be powered up for accessing
86 #define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
100 * 31-8: Reserved
101 * 7-4: Type of device: see CSR_HW_REV_TYPE_xxx definitions
[all …]
/linux-5.10/include/linux/
Drcuwait.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 * rcuwait provides a way of blocking and waking up a single
10 * task in an rcu-safe manner.
12 * The only time @task is non-nil is when a user is blocked (or
25 w->task = NULL; in rcuwait_init()
34 return !!rcu_access_pointer(w->task); in rcuwait_active()
47 rcu_assign_pointer(w->task, current); in prepare_to_rcuwait()
52 rcu_assign_pointer(w->task, NULL); in finish_rcuwait()
70 __ret = -EINTR; \
/linux-5.10/arch/mips/loongson2ef/common/
Dpm.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * loongson-specific suspend support
57 * Setup the board-specific events for waking up loongson from wait mode
72 * If the events are really what we want to wakeup the CPU, wake it up
/linux-5.10/arch/mips/loongson64/
Dpm.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * loongson-specific suspend support
57 * Setup the board-specific events for waking up loongson from wait mode
/linux-5.10/Documentation/scheduler/
Dsched-energy.rst6 ---------------
25 please refer to its documentation (see Documentation/power/energy-model.rst).
29 -----------------------------
32 - energy = [joule] (resource like a battery on powered devices)
33 - power = energy/time = [joule/second] = [watt]
39 --------------------
45 -----------
49 optimization objective to the current performance-only objective for the
50 scheduler. This alternative considers two objectives: energy-efficiency and
54 implications of its decisions rather than blindly applying energy-saving
[all …]
/linux-5.10/drivers/crypto/
Datmel-i2c.c1 // SPDX-License-Identifier: GPL-2.0
22 #include "atmel-i2c.h"
37 * atmel_i2c_checksum() - Generate 16-bit CRC as required by ATMEL ECC.
39 * The checksum is saved in little-endian format in the least significant
47 u8 *data = &cmd->count; in atmel_i2c_checksum()
48 size_t len = cmd->count - CRC_SIZE; in atmel_i2c_checksum()
56 cmd->word_addr = COMMAND; in atmel_i2c_init_read_cmd()
57 cmd->opcode = OPCODE_READ; in atmel_i2c_init_read_cmd()
62 cmd->param1 = CONFIG_ZONE; in atmel_i2c_init_read_cmd()
63 cmd->param2 = cpu_to_le16(DEVICE_LOCK_ADDR); in atmel_i2c_init_read_cmd()
[all …]
/linux-5.10/Documentation/admin-guide/laptops/
Dthinkpad-acpi.rst9 - Borislav Deianov <borislav@users.sf.net>
10 - Henrique de Moraes Holschuh <hmh@hmh.eng.br>
12 http://ibm-acpi.sf.net/
19 This driver used to be named ibm-acpi until kernel 2.6.21 and release
20 0.13-20070314. It used to be in the drivers/acpi tree, but it was
21 moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
25 The driver is named "thinkpad-acpi". In some places, like module
29 "tpacpi" is used as a shorthand where "thinkpad-acpi" would be too
33 ------
38 - Fn key combinations
[all …]
/linux-5.10/kernel/power/
Dautosleep.c1 // SPDX-License-Identifier: GPL-2.0
58 * system from trying to suspend and waking up in a tight loop. in try_to_suspend()
95 return -EINVAL; in pm_autosleep_set_state()
121 return -ENOMEM; in pm_autosleep_init()
128 return -ENOMEM; in pm_autosleep_init()

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