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/linux/Documentation/devicetree/bindings/cpu/
H A Didle-states.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/cpu/idle-states.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
11 - Anup Patel <anup@brainfault.org>
15 1 - Introduction
18 ARM and RISC-V systems contain HW capable of managing power consumption
19 dynamically, where cores can be put in different low-power states (ranging
22 run-time, can be specified through device tree bindings representing the
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/linux/net/mac802154/
H A Dutil.c1 // SPDX-License-Identifier: GPL-2.0-only
11 #include "driver-ops.h"
17 * ieee802154_wake_queue - wake ieee802154 queue
22 * one frame at a time for each phy, which means we had to stop the queue to
28 struct ieee802154_local *local = hw_to_local(hw); in ieee802154_wake_queue() local
32 clear_bit(WPAN_PHY_FLAG_STATE_QUEUE_STOPPED, &local->phy->flags); in ieee802154_wake_queue()
33 list_for_each_entry_rcu(sdata, &local->interfaces, list) { in ieee802154_wake_queue()
34 if (!sdata->dev) in ieee802154_wake_queue()
37 netif_wake_queue(sdata->dev); in ieee802154_wake_queue()
43 * ieee802154_stop_queue - stop ieee802154 queue
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/linux/net/mac80211/
H A Dagg-tx.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright 2002-2005, Instant802 Networks, Inc.
7 * Copyright 2005-2006, Devicescape Software, Inc.
8 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
10 * Copyright 2007-2010, Intel Corporation
11 * Copyright(c) 2015-2017 Intel Deutschland GmbH
12 * Copyright (C) 2018 - 2024 Intel Corporation
20 #include "driver-ops.h"
24 * DOC: TX A-MPDU aggregation
28 * packets with a flag indicating A-MPDU aggregation. The driver
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H A Dagg-rx.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright 2002-2005, Instant802 Networks, Inc.
7 * Copyright 2005-2006, Devicescape Software, Inc.
8 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
10 * Copyright 2007-2010, Intel Corporation
11 * Copyright(c) 2015-2017 Intel Deutschland GmbH
12 * Copyright (C) 2018-202
61 struct ieee80211_local *local = sta->local; __ieee80211_stop_rx_ba_session() local
236 struct ieee80211_local *local = sdata->local; ieee80211_send_addba_resp() local
277 struct ieee80211_local *local = sta->sdata->local; __ieee80211_start_rx_ba_session() local
468 ieee80211_process_addba_request(struct ieee80211_local * local,struct sta_info * sta,struct ieee80211_mgmt * mgmt,size_t len) ieee80211_process_addba_request() argument
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H A Dpm.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (C) 2020-2021, 2023-2024 Intel Corporation
11 #include "driver-ops.h"
14 static void ieee80211_sched_scan_cancel(struct ieee80211_local *local) in ieee80211_sched_scan_cancel() argument
16 if (ieee80211_request_sched_scan_stop(local)) in ieee80211_sched_scan_cancel()
18 cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); in ieee80211_sched_scan_cancel()
23 struct ieee80211_local *local = hw_to_local(hw); in __ieee80211_suspend() local
27 if (!local->open_count) in __ieee80211_suspend()
30 local->suspending = true; in __ieee80211_suspend()
33 ieee80211_scan_cancel(local); in __ieee80211_suspend()
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H A Dmesh.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (C) 2023-2024 Intel Corporation
20 * enum mesh_path_flags - mac80211 mesh path flags
34 * MESH_PATH_RESOLVED is used by the mesh path timer to
35 * decide when to stop or cancel the mesh path discovery.
48 * enum mesh_deferred_task_flags - mac80211 mesh deferred tasks
66 * struct mesh_path - mac80211 mesh path structure
76 * @timer: mesh path discovery timer
97 * @fast_tx_check: timestamp of last fast-xmit enable attempt
113 struct timer_list timer; member
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/linux/kernel/time/
H A Dtick-broadcast.c1 // SPDX-License-Identifier: GPL-2.0
3 * This file contains functions which emulate a local clock-event
6 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de>
7 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar
8 * Copyright(C) 2006-2007, Timesys Corp., Thomas Gleixner
20 #include "tick-internal.h"
23 * Broadcast support for broken x86 hardware, where the local apic
24 * timer stops in C3 state.
89 if ((newdev->features & CLOCK_EVT_FEAT_DUMMY) || in tick_check_broadcast_device()
90 (newdev->features & CLOCK_EVT_FEAT_PERCPU) || in tick_check_broadcast_device()
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H A Dtick-common.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de>
7 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar
8 * Copyright(C) 2006-2007, Timesys Corp., Thomas Gleixner
24 #include "tick-internal.h"
38 * tick_do_timer_cpu is a timer core internal variable which holds the CPU NR
58 static int tick_do_timer_boot_cpu __read_mostly = -1;
70 * tick_is_oneshot_available - check for a oneshot capable event device
76 if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT)) in tick_is_oneshot_available()
78 if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) in tick_is_oneshot_available()
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/linux/Documentation/virt/kvm/x86/
H A Dtimekeeping.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
32 information relevant to KVM and hardware-based virtualization.
41 2.1. i8254 - PIT
42 ----------------
44 One of the first timer devices available is the programmable interrupt timer,
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
55 available, but not all modes are available to all timers, as only timer 2
59 -------------- ----------------
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/linux/arch/arm64/boot/dts/sprd/
H A Dums9620.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 interrupt-parent = <&gic>;
12 #address-cells = <2>;
13 #size-cells = <2>;
16 #address-cells = <2>;
17 #size-cells = <0>;
19 cpu-map {
50 compatible = "arm,cortex-a55";
52 enable-method = "psci";
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/linux/Documentation/timers/
H A Dhighres.rst8 https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
11 http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
23 - hrtimer base infrastructure
24 - timeofday and clock source management
25 - clock event management
26 - high resolution timer functionality
27 - dynamic ticks
31 ---------------------------
37 The main differences to the timer wheel, which holds the armed timer_list type
40 - time ordered enqueueing into a rb-tree
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H A Dtimekeeping.rst10 If you grep through the kernel source you will find a number of architecture-
12 architecture-specific overrides of the sched_clock() function and some
17 on this timeline, providing facilities such as high-resolution timers.
23 -------------
31 n bits which count from 0 to (2^n)-1 and then wraps around to 0 and start over.
32 It will ideally NEVER stop ticking as long as the system is running. It
33 may stop during system suspend.
36 shall be as stable and correct as possible as compared to a real-world wall
46 When the wall-clock accuracy of the clock source isn't satisfactory, there
48 the user-visible time to RTC clocks in the system or against networked time
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/linux/drivers/net/fddi/skfp/
H A Dhwt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
14 * Timer Driver for FBI board (timer chip 82C54)
20 * 28-Jun-1994 sw Edit v1.6.
21 * MCA: Added support for the SK-NET FDDI-FM2 adapter. The
31 * Prototypes of local functions.
33 /* 28-Jun-1994 sw - Note: hwt_restart() is also used in module 'drvfbi.c'. */
40 * Start hardware timer (clock ticks are 16us).
46 * smc - A pointer to the SMT Context structure.
48 * time - The time in units of 16us to load the timer with.
62 smc->hw.t_start = time ; in hwt_start()
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/linux/drivers/clocksource/
H A Dtimer-fttmr010.c1 // SPDX-License-Identifier: GPL-2.0
3 * Faraday Technology FTTMR010 timer driver
6 * Based on a rewrite of arch/arm/mach-gemini/timer.c:
7 * Copyright (C) 2001-2006 Storlink, Corp.
8 * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
24 * Register definitions common for all the timer variants.
64 * bits for setting the timer to count upwards.
81 * - aspeed timer overflow interrupt is controlled by bits in Control
83 * - aspeed timers always generate interrupt when either one of the
112 * A local singleton used by sched_clock and delay timer reads, which are
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H A Dbcm_kona_timer.c1 // SPDX-License-Identifier: GPL-2.0
37 * We use the peripheral timers for system tick, the cpu global timer for
65 * Read 64-bit free running counter in kona_timer_get_counter()
66 * 1. Read hi-word in kona_timer_get_counter()
67 * 2. Read low-word in kona_timer_get_counter()
68 * 3. Read hi-word again in kona_timer_get_counter()
70 * if new hi-word is not equal to previously read hi-word, then in kona_timer_get_counter()
73 * if new hi-word is equal to previously read hi-word then stop. in kona_timer_get_counter()
81 } while (--loop_limit); in kona_timer_get_counter()
84 pr_err(" Timer will be impacted\n"); in kona_timer_get_counter()
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/linux/net/rxrpc/
H A Dpeer_event.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 #include "ar-internal.h"
26 * Find the peer associated with a local error.
28 static struct rxrpc_peer *rxrpc_lookup_peer_local_rcu(struct rxrpc_local *local, in rxrpc_lookup_peer_local_rcu() argument
37 srx->transport_type = local->srx.transport_type; in rxrpc_lookup_peer_local_rcu()
38 srx->transport_len = local->srx.transport_len; in rxrpc_lookup_peer_local_rcu()
39 srx->transport.family = local->srx.transport.family; in rxrpc_lookup_peer_local_rcu()
44 switch (srx->transport.family) { in rxrpc_lookup_peer_local_rcu()
46 srx->transport_len = sizeof(srx->transport.sin); in rxrpc_lookup_peer_local_rcu()
47 srx->transport.family = AF_INET; in rxrpc_lookup_peer_local_rcu()
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/linux/include/net/sctp/
H A Dcommand.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright (C) 1999-2001 Cisco, Motorola
12 * lksctp developers <linux-sctp@vger.kernel.org>
47 SCTP_CMD_TIMER_START, /* Start a timer. */
48 SCTP_CMD_TIMER_START_ONCE, /* Start a timer once */
49 SCTP_CMD_TIMER_RESTART, /* Restart a timer. */
50 SCTP_CMD_TIMER_STOP, /* Stop a timer. */
54 SCTP_CMD_INIT_RESTART, /* High level, do init timer work. */
55 SCTP_CMD_COOKIEECHO_RESTART, /* High level, do cookie-echo timer work. */
61 SCTP_CMD_HB_TIMERS_STOP, /* Stop the heartbeat timers. */
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/linux/arch/arm64/boot/dts/qcom/
H A Dsdm630.dtsi1 // SPDX-License-Identifier: BSD-3-Clause
7 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
8 #include <dt-bindings/clock/qcom,gcc-sdm660.h>
9 #include <dt-bindings/clock/qcom,gpucc-sdm660.h>
10 #include <dt-bindings/clock/qcom,mmcc-sdm660.h>
11 #include <dt-bindings/clock/qcom,rpmcc.h>
12 #include <dt-bindings/firmware/qcom,scm.h>
13 #include <dt-bindings/interconnect/qcom,sdm660.h>
14 #include <dt-bindings/power/qcom-rpmpd.h>
15 #include <dt-bindings/gpio/gpio.h>
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/linux/include/scsi/
H A Dlibfc.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Maintained at www.Open-FCoE.org
11 #include <linux/timer.h>
43 * enum fc_lport_state - Local port states
51 * @LPORT_ST_RFF_ID: Register FC-4 Features by ID (RFF_ID) sent
59 * @LPORT_ST_LOGO: Local port logout (LOGO) sent
60 * @LPORT_ST_RESET: Local port reset
89 * enum fc_rport_state - Remote port states
91 * @RPORT_ST_FLOGI: Waiting for FLOGI completion for point-to-multipoint
92 * @RPORT_ST_PLOGI_WAIT: Waiting for peer to login for point-to-multipoint
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/linux/net/sctp/
H A Dsm_statefuns.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (c) 1999-2000 Cisco, Inc.
5 * Copyright (c) 1999-2001 Motorola, Inc.
6 * Copyright (c) 2001-2002 Intel Corp.
15 * lksctp developers <linux-sctp@vger.kernel.org>
177 __u16 chunk_length = ntohs(chunk->chunk_hdr->length); in sctp_chunk_length_valid()
180 if (unlikely(chunk->pdiscard)) in sctp_chunk_length_valid()
193 sctp_walk_errors(err, chunk->chunk_hdr); in sctp_err_chunk_valid()
195 return (void *)err == (void *)chunk->chunk_end; in sctp_err_chunk_valid()
207 * that it is in SHUTDOWN-ACK-SENT state, if it is not the chunk should be
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/linux/arch/arm64/boot/dts/arm/
H A Djuno-r2.dts9 /dts-v1/;
11 #include <dt-bindings/interrupt-controller/arm-gic.h>
12 #include <dt-bindings/arm/coresight-cti-dt.h>
13 #include "juno-base.dtsi"
14 #include "juno-cs-r1r2.dtsi"
18 compatible = "arm,juno-r2", "arm,juno", "arm,vexpress";
19 interrupt-parent = <&gic>;
20 #address-cells = <2>;
21 #size-cells = <2>;
28 stdout-path = "serial0:115200n8";
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H A Djuno.dts4 * Copyright (c) 2013-2014 ARM Ltd.
9 /dts-v1/;
11 #include <dt-bindings/interrupt-controller/arm-gic.h>
12 #include <dt-bindings/arm/coresight-cti-dt.h>
13 #include "juno-base.dtsi"
18 interrupt-parent = <&gic>;
19 #address-cells = <2>;
20 #size-cells = <2>;
27 stdout-path = "serial0:115200n8";
31 compatible = "arm,psci-0.2";
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H A Djuno-r1.dts9 /dts-v1/;
11 #include <dt-bindings/interrupt-controller/arm-gic.h>
12 #include <dt-bindings/arm/coresight-cti-dt.h>
13 #include "juno-base.dtsi"
14 #include "juno-cs-r1r2.dtsi"
18 compatible = "arm,juno-r1", "arm,juno", "arm,vexpress";
19 interrupt-parent = <&gic>;
20 #address-cells = <2>;
21 #size-cells = <2>;
28 stdout-path = "serial0:115200n8";
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/linux/drivers/firmware/psci/
H A Dpsci_checker.c1 // SPDX-License-Identifier: GPL-2.0-only
31 static int tos_resident_cpu = -1;
42 * "enable-method" property of each CPU in the DT, but given that there is no
43 * arch-specific way to check this, we assume that the DT is sensible.
47 int migrate_type = -1; in psci_ops_check()
52 return -EOPNOTSUPP; in psci_ops_check()
66 if (tos_resident_cpu == -1) in psci_ops_check()
94 if (ret != -EBUSY) { in down_and_up_cpus()
101 if (ret != -EPERM) { in down_and_up_cpus()
156 return -ENOMEM; in alloc_init_cpu_groups()
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/linux/drivers/scsi/bnx2fc/
H A Dbnx2fc_constants.h5 * Copyright (c) 2008-2013 Broadcom Corporation
6 * Copyright (c) 2014-2016 QLogic Corporation
7 * Copyright (c) 2016-2017 Cavium Inc.
75 /* E_D_TOV timer resolution in ms */
78 /* E_D_TOV timer resolution for SDM (4 micro) */
82 /* REC timer resolution in ms */
85 /* REC timer resolution for SDM (4 micro) */
88 /* E_D_TOV timer default wraparound value (2 sec) in 20 ms resolution */
92 /* REC_TOV timer default wraparound value (3 sec) in 20 ms resolution */
102 /* In case timer services are required then shall be updated by Xstorm after
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