2024 Clocksource clockevent

Clocksource clockevent

Author: dpzg

August undefined, 2024

WebBefore you resend as is, this will be nacked as clocksource / clockevent is not a hardware description but a Linux thing. Finding a way to characterize that from the DT is an endless discussion since years, so I suggest to use a single property for the timer eg and initialize the clocksource and the clockevent in the driver. WebThe clockevent core is able to figure out the best mult and shift, calculate min_delta_ns and max_delta_ns, with the necessary info passed into clockevents_config_and_register().

[PATCH] clocksource: fix Kconfig miscues - Randy Dunlap

WebMessage ID: [email protected] (mailing list archive)State: New, archived: Headers: show WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [patch 0/7] clocksources/clockevents improvements @ 2011-05-18 21:33 Thomas Gleixner 2011-05-18 21 ... blue stilton mit portwein

[PATCH] drivers: clocksource: fix memory leak in …

Web+ Enable this option to use Loongson1 PWM timer as clocksource + instead of the performance counter. + config CLKSRC_ST_LPC bool "Low power clocksource found in the LPC" if COMPILE_TEST select TIMER_OF if OF diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index … Web* page later in hv_remap_tsc_clocksource(). * * It worth mentioning, that TSC clocksource read function * (read_hv_clock_tsc) has a MSR-based fallback mechanism, used when * TSC page is zeroed (which is the case until the PFN is remapped) and * thus TSC clocksource will work even without the real TSC page * mapped. */ Web- bool "Use PWM Timer for clockevent/clocksource" - select MIPS_EXTERNAL_TIMER - depends on CPU_LOONGSON32 - help - This option changes the default … clear tomato jelly

ARM:global_timer: Add ARM global timer support. - LWN.net

Subject Re: [PATCH] drivers: clocksource: fix memory leak in …

Web*PATCH v4 1/5] ARC: clockevent: DT based probe 2016-04-13 11:40 [PATCH v4 0/5] Modernize ARC clocksource/clockevent/intc drivers Vineet Gupta @ 2016-04-13 11:40 ... Webdepends on CLOCKSOURCE_WATCHDOG: range 50 1000: default 125: help: Specify the maximum amount of allowable watchdog skew in: microseconds before reporting the clocksource to be unstable. The default is based on a half-second clocksource watchdog: interval and NTP's maximum frequency drift of 500 parts: per million. If the clocksource … clear to me 意味Web> > If the Hyper-V clocksource is not setup, then Linux in the VM runs > > fine with the "arch_sys_counter" clocksource. > > Great! > > As above, my remaining concern here is fragility around the > clockevent_device; I'm not keen that we're lying (in the GTDT) that > interrupts are wired up when they not functional, and while you can get blue stinger instant death

"WebJul 19, 2024 · other counter will be used as a clockevent. - We do not use timer_of_init because we need to perform some tasks in between different stages. For example, we must ensure that ->read and ... It is used as a clocksource and a clockevent. +config XILINX_TIMER + bool "Xilinx AXI Timer support" + depends on COMMON_CLK + select … " - Clocksource clockevent

Clocksource clockevent

Web* Clocksource: just a monotonic counter of MCK/16 cycles. * We don't care whether or not PIT irqs are enabled. */ static u64 read_pit_clk ... * Set up both clocksource and clockevent support. */ static int __init at91sam926x_pit_dt_init (struct device_node *node) {unsigned long pit_rate; unsigned bits; int ret; WebTimers and time management in the Linux kernel. Part 2. Introduction to the clocksource framework. The previous part was the first part in the current chapter that describes …

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WebNov 20, 2015 · Wei Xu. Quote: Originally Posted by jpollard. Jiffies are the easiest - they are the shortest measurable time given a particular clock. The jiffy counter is used when no … WebNov 18, 2024 · A clockevent is programmed to tick at a constant rate (CONFIG_HZ ranges from 24 to 1200) and a variable named jiffies is incremented at every interrupt fired by …

WebJun 8, 2024 · Clockevent device is an alarm clock—you ask the device to signal a time in the future (e.g., "wake me up in 1ms") and when the alarm is triggered, you get the signal. sched_clock() function is similar to clocksource, but this particular one should be "cheap" to read (meaning that one can get its value fast), as sched_clock() is used for task ... WebMay 28, 2013 · Message ID: [email protected] (mailing list archive)State: New, archived: Headers: show

Web>> (Shortly after, the acpi pm clocksource is registered and replaces the >> PIT as the watchdog. Later, the PIT clockevent is used as the broadcast >> clockevent and … Web*Re: [PATCH] drivers: clocksource: fix memory leak in davinci_timer_register 2024-04-10 12:04 ` 戴钦润 @ 2024-04-11 8:40 ` Daniel Lezcano 0 siblings, 0 replies; 3+ messages in thread From: Daniel Lezcano @ 2024-04-11 8:40 UTC (permalink / raw) To: 戴钦润, thomas gleixner, bartosz golaszewski Cc: hust-os-kernel-patches, linux-kernel Hi, thanks for the …

WebThe clockevent core is able to figure out the best mult and shift, calculate min_delta_ns and max_delta_ns, with the necessary info passed into clockevents_config_and_register().

WebWe are workforce management architects. The ScheduleSource workforce management system helps unravel and re-engineer your workforce processes to make scheduling, … clear to me synonymThe main structure which described a clock event device is clock_event_device structure. This structure is defined in the include/linux/clockchips.h header file and contains a huge set of fields. as well as the clocksource structure it has name fields which contains human readable name of a clock event device, for … See more This is fifth part of the chapter which describes timers and time management related stuff in the Linux kernel. As you might noted from the title of this part, the clockevents framework will be discussed. We already saw one … See more This is the end of the fifth part of the chapter that describes timers and timer management related stuff in the Linux kernel. In the previous part got acquainted with the timers concept. In this part we continued to learn … See more clear tom ford glassesWebWei Xu. Jiffies are the easiest - they are the shortest measurable time given a particular clock. The jiffy counter is used when no other scheduling clock is available. The following … clear to me or for meWeb+ Enable this option to use Loongson1 PWM timer as clocksource + instead of the performance counter. + config CLKSRC_ST_LPC bool "Low power clocksource found … clear to meaning blue stingray seafood restaurantWeb- bool "Use PWM Timer for clockevent/clocksource" - select MIPS_EXTERNAL_TIMER - depends on CPU_LOONGSON32 - help - This option changes the default clockevent/clocksource to PWM Timer, - and is required by Loongson1 CPUFreq support.-- If unsure, say N.--choice blue stingray seafood durham ncWebOn Wed, 07 Jun 2024 13:16:59 PDT (-0700), daniel.lezcano@xxxxxxxxxx wrote: > Hi, > I prefer the term 'timer' when we have a clocksource + clockevent. > Reply-To: > In ... clear tomato soup recipe