diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/linux/acpi_pmtmr.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/linux/acpi_pmtmr.h')
| -rw-r--r-- | kernel/include/linux/acpi_pmtmr.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/include/linux/acpi_pmtmr.h b/kernel/include/linux/acpi_pmtmr.h new file mode 100644 index 000000000..1d0ef1ae8 --- /dev/null +++ b/kernel/include/linux/acpi_pmtmr.h @@ -0,0 +1,38 @@ +#ifndef _ACPI_PMTMR_H_ +#define _ACPI_PMTMR_H_ + +#include <linux/clocksource.h> + +/* Number of PMTMR ticks expected during calibration run */ +#define PMTMR_TICKS_PER_SEC 3579545 + +/* limit it to 24 bits */ +#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) + +/* Overrun value */ +#define ACPI_PM_OVRRUN (1<<24) + +#ifdef CONFIG_X86_PM_TIMER + +extern u32 acpi_pm_read_verified(void); +extern u32 pmtmr_ioport; + +static inline u32 acpi_pm_read_early(void) +{ + if (!pmtmr_ioport) + return 0; + /* mask the output to 24 bits */ + return acpi_pm_read_verified() & ACPI_PM_MASK; +} + +#else + +static inline u32 acpi_pm_read_early(void) +{ + return 0; +} + +#endif + +#endif + |