user/sven/linux.git/drivers/clocksource/acpi_pm.c, branch v5.7

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 243

2019-06-19T15:09:07Z

Based on 1 normalized pattern(s): this file is licensed under the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204654.634736654@linutronix.de Signed-off-by: Greg Kroah-Hartman

clocksource: Use a plain u64 instead of cycle_t

2016-12-25T10:04:12Z

There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: John Stultz

clocksource/drivers/acpi_pm: Convert to pr_* macros

2015-12-29T11:52:57Z

Like it's already done in one place in the driver, convert the rest to use pr_* macros instead of printk(KERN_LEVEL) calls. While here, join strings to be one string for one line to make grep on them easier. There is no functional change. Signed-off-by: Andy Shevchenko Cc: Daniel Lezcano Link: http://lkml.kernel.org/r/1451310085-113182-1-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner

treewide: Fix printks with 0x%#

2013-08-27T08:49:38Z

Using 0x%# emits 0x0x. Only one is necessary. Signed-off-by: Joe Perches Acked-by: Takashi Iwai Signed-off-by: Jiri Kosina

Drivers: clocksource: remove __dev* attributes.

2013-01-03T23:57:15Z

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton Cc: John Stultz Cc: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

clocksource: clean up parse_pmtmr()

2012-11-13T19:04:50Z

I changed the strict_strtoul() to kstrtouint(). That has the check for UINT_MAX built in to it so the ifdefs can be removed. Also I changed a printk() to pr_info(). Signed-off-by: Dan Carpenter Signed-off-by: John Stultz

Revert "clocksource: Load the ACPI PM clocksource asynchronously"

2012-04-11T22:05:05Z

This reverts commit b519508298e0292e1771eecf14aaf67755adc39d. The reason for this revert is that making the frequency verification preemptible and interruptible is not working reliably. Michaels machine failed to use PM-timer with the message: PM-Timer running at invalid rate: 113% of normal - aborting. That's not a surprise as the frequency verification does rely on interrupts being disabled. With a async scheduled thread there is no guarantee to achieve the same result. Also some driver might fiddle with the CTC channel 2 during the verification period, which makes the result even more random and unpredictable. This can be solved by using the same mechanism as we use in the deferred TSC validation code, but that only will work if we verified a working HPET _BEFORE_ trying to do the PM-Timer lazy validation. So for now reverting is the safe option. Bisected-by: Michael Witten Cc: Arjan van de Ven Cc: Arjan van de Ven Cc: John Stultz Cc: Len Brown LKML-Reference: Signed-off-by: Thomas Gleixner

clocksource: Load the ACPI PM clocksource asynchronously

2012-02-02T02:39:46Z

The ACPI clocksource takes quite some time to initialize, and this increases the boot time of the kernel for a double digit percentage. This while almost all modern systems will be using the HPET already anyway. This patch turns the clocksource loading into an asynchronous operation; which means it won't hold up the boot while still becoming available normally. To make this work well, an udelay() had to be turned into an usleep_range() so that on UP systems, we yield the CPU to regular boot tasks instead of spinning. CC: John Stultz CC: Thomas Gleixner CC: Len Brown Signed-off-by: Arjan van de Ven Signed-off-by: John Stultz

time: x86: Remove CLOCK_TICK_RATE from acpi_pm clocksource driver

2011-11-22T03:00:58Z

The acpi_pm clocksource driver uses CLOCK_TICK_RATE which is defined as PIT_TICK_RATE on x86. This patch cleans it up to just use the later so that CLOCK_TICK_RATE can be depecrated. Signed-off-by: Deepak Saxena Signed-off-by: John Stultz

acpi_pm: Clear pmtmr_ioport if acpi_pm initialization fails

2011-01-21T16:38:19Z

If the acpi pm timer throws invalid data, clear pmtmr_ioport so the pm timer won't accidentally be used. This was found when using Xen where there is a acpi pm reported, but gives bogus values, and other code was continuing to try to use the pm timer after the initialization failed. [jstultz: Catch additional failure and reword changelog message. ] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: John Stultz LKML-Reference: <1295027246-11110-1-git-send-email-johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner