/linux-6.1.9/drivers/greybus/ |
D | svc_watchdog.c | 27 struct gb_svc_watchdog *watchdog = in svc_watchdog_pm_notifier() local 32 gb_svc_watchdog_disable(watchdog->svc); in svc_watchdog_pm_notifier() 35 gb_svc_watchdog_enable(watchdog->svc); in svc_watchdog_pm_notifier() 65 struct gb_svc_watchdog *watchdog; in do_work() local 69 watchdog = container_of(work, struct gb_svc_watchdog, work.work); in do_work() 70 svc = watchdog->svc; in do_work() 98 watchdog->enabled = false; in do_work() 103 if (watchdog->enabled) in do_work() 104 schedule_delayed_work(&watchdog->work, SVC_WATCHDOG_PERIOD); in do_work() 109 struct gb_svc_watchdog *watchdog; in gb_svc_watchdog_create() local [all …]
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/linux-6.1.9/Documentation/devicetree/bindings/watchdog/ |
D | da9062-wdt.txt | 6 "dlg,da9061-watchdog", "dlg,da9062-watchdog" 7 "dlg,da9062-watchdog" 10 - dlg,use-sw-pm: Add this property to disable the watchdog during suspend. 11 Only use this option if you can't use the watchdog automatic suspend 13 - dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the 14 watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers 17 set the WATCHDOG_SD bit and on timeout watchdog behavior will match the 23 watchdog { 24 compatible = "dlg,da9062-watchdog"; 28 Example: DA9061 using a fall-back compatible for the DA9062 watchdog driver [all …]
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D | atmel,sama5d4-wdt.yaml | 4 $id: http://devicetree.org/schemas/watchdog/atmel,sama5d4-wdt.yaml# 13 - $ref: "watchdog.yaml#" 28 atmel,watchdog-type: 33 Enable watchdog fault reset. A watchdog fault triggers 34 watchdog reset. 37 Enable watchdog fault interrupt. A watchdog fault asserts 38 watchdog interrupt. 45 present if you want to stop the watchdog when the CPU is in idle state. 47 watchdog not counting when the CPU is in idle state, therefore the 48 watchdog reset time depends on mean CPU usage and will not reset at all [all …]
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D | atmel,at91sam9-wdt.yaml | 5 $id: http://devicetree.org/schemas/watchdog/atmel,at91sam9-wdt.yaml# 39 atmel,watchdog-type: 45 Hardware watchdog uses the at91 watchdog reset. 48 Software watchdog uses the watchdog interrupt 56 Should be proc or all. This is valid only when using hardware watchdog. 69 Should be present if you want to stop the watchdog. 74 Should be present if you want to stop the watchdog when 77 watchdog not counting when the CPU is in idle state, therefore the 78 watchdog reset time depends on mean CPU usage and will not reset at all 85 Should be present if you want to stop the watchdog when [all …]
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D | faraday,ftwdt010.yaml | 4 $id: http://devicetree.org/schemas/watchdog/faraday,ftwdt010.yaml# 7 title: Faraday Technology FTWDT010 watchdog 18 - $ref: "watchdog.yaml#" 26 - cortina,gemini-watchdog 27 - moxa,moxart-watchdog 54 watchdog@41000000 { 61 watchdog: watchdog@98500000 { 62 compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
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D | watchdog.yaml | 4 $id: http://devicetree.org/schemas/watchdog/watchdog.yaml# 11 - Wim Van Sebroeck <wim@linux-watchdog.org> 15 describe watchdog devices in a device tree. 19 pattern: "^watchdog(@.*|-[0-9a-f])?$" 23 Contains the watchdog timeout in seconds.
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D | arm,sp805.yaml | 4 $id: http://devicetree.org/schemas/watchdog/arm,sp805.yaml# 13 The Arm SP805 IP implements a watchdog device, which triggers an interrupt 18 - $ref: /schemas/watchdog/watchdog.yaml# 43 Clocks driving the watchdog timer hardware. The first clock is used 44 for the actual watchdog counter. The second clock drives the register 65 watchdog@66090000 {
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D | ti,rti-wdt.yaml | 4 $id: http://devicetree.org/schemas/watchdog/ti,rti-wdt.yaml# 13 The TI K3 SoC watchdog timer is implemented via the RTI (Real Time 14 Interrupt) IP module. This timer adds a support for windowed watchdog 15 mode, which will signal an error if it is pinged outside the watchdog 21 - $ref: "watchdog.yaml#" 49 * select the source clock for the watchdog, forcing it to tick with 54 watchdog@2200000 {
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D | zii,rave-sp-wdt.txt | 3 RAVE SP watchdog device is a "MFD cell" device corresponding to 4 watchdog functionality of RAVE Supervisory Processor. It is expected 13 - "zii,rave-sp-watchdog" 14 - "zii,rave-sp-watchdog-legacy" 33 watchdog { 34 compatible = "zii,rave-sp-watchdog";
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D | lantiq-wdt.txt | 1 Lantiq WTD watchdog binding 4 This describes the binding of the Lantiq watchdog driver. 13 - reg : Address of the watchdog block 18 Example for the watchdog on the xRX200 SoCs: 19 watchdog@803f0 {
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D | socionext,uniphier-wdt.yaml | 4 $id: http://devicetree.org/schemas/watchdog/socionext,uniphier-wdt.yaml# 7 title: Socionext UniPhier watchdog timer 13 - $ref: "watchdog.yaml#" 26 // The UniPhier watchdog should be a subnode of a "syscon" compatible node. 33 watchdog {
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D | sunplus,sp7021-wdt.yaml | 5 $id: http://devicetree.org/schemas/watchdog/sunplus,sp7021-wdt.yaml# 14 - $ref: watchdog.yaml# 22 - description: watchdog registers regions 41 watchdog: watchdog@9c000630 {
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D | samsung-wdt.yaml | 4 $id: http://devicetree.org/schemas/watchdog/samsung-wdt.yaml# 45 Index of CPU cluster on which watchdog is running (in case of Exynos850) 61 - $ref: watchdog.yaml# 87 - description: Source clock (driving watchdog counter) 90 - const: watchdog 103 - const: watchdog 110 watchdog@101d0000 { 115 clock-names = "watchdog";
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/linux-6.1.9/Documentation/watchdog/ |
D | watchdog-kernel-api.rst | 14 file: Documentation/watchdog/watchdog-api.rst . 20 a watchdog timer driver then only needs to provide the different routines 21 (operations) that control the watchdog timer (WDT). 25 Each watchdog timer driver that wants to use the WatchDog Timer Driver Core 26 must #include <linux/watchdog.h> (you would have to do this anyway when 27 writing a watchdog device driver). This include file contains following 33 The watchdog_register_device routine registers a watchdog timer device. 37 The watchdog_unregister_device routine deregisters a registered watchdog timer 41 The watchdog subsystem includes an registration deferral mechanism, 42 which allows you to register an watchdog as early as you wish during [all …]
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D | mlx-wdt.rst | 2 Mellanox watchdog drivers 8 This driver provides watchdog functionality for various Mellanox 11 Mellanox watchdog device is implemented in a programmable logic device. 13 There are 2 types of HW watchdog implementations. 31 Type 1 HW watchdog implementation exist in old systems and 32 all new systems have type 2 HW watchdog. 35 Type 3 HW watchdog implementation can exist on all Mellanox systems 38 Old systems still have only one main watchdog. 41 Main and auxiliary watchdog devices can be enabled together 43 There are several actions that can be defined in the watchdog: [all …]
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D | watchdog-api.rst | 23 Usually a userspace daemon will notify the kernel watchdog driver via the 24 /dev/watchdog special device file that userspace is still alive, at 26 usually tell the hardware watchdog that everything is in order, and 27 that the watchdog should wait for yet another little while to reset 29 notifications cease to occur, and the hardware watchdog will reset the 32 The Linux watchdog API is a rather ad-hoc construction and different 40 All drivers support the basic mode of operation, where the watchdog 41 activates as soon as /dev/watchdog is opened and will reboot unless 42 the watchdog is pinged within a certain time, this time is called the 43 timeout or margin. The simplest way to ping the watchdog is to write [all …]
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D | hpwdt.rst | 12 watchdog functionality and handler for the iLO "Generate NMI to System" 18 Watchdog functionality is enabled like any other common watchdog driver. That 19 is, an application needs to be started that kicks off the watchdog timer. A 20 basic application exists in tools/testing/selftests/watchdog/ named 21 watchdog-test.c. Simply compile the C file and kick it off. If the system 29 soft_margin allows the user to set the watchdog timer value. 32 pretimeout allows the user to set the watchdog pretimeout value. 37 nowayout basic watchdog parameter that does not allow the timer to 40 to "Y", then there is no way of disabling the watchdog once 43 before calling panic. (-1) disables the watchdog. When value [all …]
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D | index.rst | 12 pcwd-watchdog 13 watchdog-api 14 watchdog-kernel-api 15 watchdog-parameters 16 watchdog-pm
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/linux-6.1.9/drivers/watchdog/ |
D | Kconfig | 11 character special file /dev/watchdog with major number 10 and minor 12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 16 on-line as fast as possible after a lock-up. There's both a watchdog 18 reboot the machine) and a driver for hardware watchdog boards, which 21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source. 23 The watchdog is usually used together with the watchdog daemon 25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon 36 Say Y here if you want to use the new watchdog timer driver core. 37 This driver provides a framework for all watchdog timer drivers 38 and gives them the /dev/watchdog interface (and later also the [all …]
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/linux-6.1.9/Documentation/translations/zh_CN/admin-guide/ |
D | lockup-watchdogs.rst | 37 Hrtimer用于周期性产生中断并唤醒watchdog线程;NMI perf事件则以”watchdog_thresh“ 43 而watchdog线程本质上是一个高优先级内核线程,每调度一次就对时间戳进行一次更新。 55 默认情况下所有在线cpu上都会运行一个watchdog线程。不过在内核配置了”NO_HZ_FULL“的 56 情况下watchdog线程默认只会运行在管家(housekeeping)cpu上,而”nohz_full“启动参数指 57 定的cpu上则不会有watchdog线程运行。试想,如果我们允许watchdog线程在”nohz_full“指 58 定的cpu上运行,这些cpu上必须得运行时钟定时器来激发watchdog线程调度;这样一来就会 60 的cpu即使在内核产生了lockup问题我们也无法检测到。不过,至少我们可以允许watchdog 64 不论哪种情况都可以通过sysctl命令kernel.watchdog_cpumask来对没有运行watchdog线程 66 这种方式打开这些cpu上的watchdog进行调试可能会有所作用。
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/linux-6.1.9/Documentation/ABI/testing/ |
D | sysfs-class-watchdog | 1 What: /sys/class/watchdog/watchdogn/bootstatus 5 It is a read only file. It contains status of the watchdog 9 What: /sys/class/watchdog/watchdogn/identity 14 watchdog device. 16 What: /sys/class/watchdog/watchdogn/nowayout 28 What: /sys/class/watchdog/watchdogn/state 33 watchdog device. 35 What: /sys/class/watchdog/watchdogn/status 39 It is a read only file. It contains watchdog device's 43 What: /sys/class/watchdog/watchdogn/timeleft [all …]
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/linux-6.1.9/kernel/time/ |
D | clocksource.c | 123 static struct clocksource *watchdog; variable 228 *wdnow = watchdog->read(watchdog); in cs_watchdog_read() 230 wd_end = watchdog->read(watchdog); in cs_watchdog_read() 231 wd_end2 = watchdog->read(watchdog); in cs_watchdog_read() 234 wd_delta = clocksource_delta(wd_end, *wdnow, watchdog->mask); in cs_watchdog_read() 235 wd_delay = clocksource_cyc2ns(wd_delta, watchdog->mult, in cs_watchdog_read() 236 watchdog->shift); in cs_watchdog_read() 240 smp_processor_id(), watchdog->name, nretries); in cs_watchdog_read() 254 wd_delta = clocksource_delta(wd_end2, wd_end, watchdog->mask); in cs_watchdog_read() 255 wd_seq_delay = clocksource_cyc2ns(wd_delta, watchdog->mult, watchdog->shift); in cs_watchdog_read() [all …]
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/linux-6.1.9/Documentation/devicetree/bindings/timer/ |
D | ingenic,tcu.yaml | 114 "^watchdog@[a-f0-9]+$": 116 $ref: /schemas/watchdog/watchdog.yaml# 123 - ingenic,jz4740-watchdog 124 - ingenic,jz4780-watchdog 127 - ingenic,jz4770-watchdog 128 - ingenic,jz4760b-watchdog 129 - ingenic,jz4760-watchdog 130 - ingenic,jz4725b-watchdog 131 - const: ingenic,jz4740-watchdog 267 watchdog: watchdog@0 { [all …]
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/linux-6.1.9/Documentation/devicetree/bindings/mfd/ |
D | rohm,bd9576-pmic.yaml | 16 monitoring. A watchdog logic with slow ping/windowed modes is also included. 53 rohm,watchdog-enable-gpios: 54 description: The GPIO line used to enable the watchdog. 57 rohm,watchdog-ping-gpios: 58 description: The GPIO line used to ping the watchdog. 65 the maximum timeout. Eg. if pinging watchdog is not done within this time 66 limit the watchdog will be triggered. If two values are given watchdog 68 Eg. if watchdog is pinged sooner than that the watchdog will trigger. 98 rohm,watchdog-enable-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; 99 rohm,watchdog-ping-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
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/linux-6.1.9/Documentation/ABI/stable/ |
D | sysfs-driver-firmware-zynqmp | 126 temperature and external watchdog. Here, the external watchdog 127 is completely different than the /dev/watchdog as the external 128 watchdog is running on the firmware and it is used to monitor 130 watchdog is interfaced outside of the zynqmp soc. 138 the external watchdog feature. 140 external watchdog feature. 158 Select external watchdog config ID to enable/disable feature 161 Check external watchdog config ID is selected or not 165 Select external watchdog config ID to configure time interval 168 Check external watchdog config ID is selected or not [all …]
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