UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/arch/arm/include/asm/arch_timer.h

20 lines
324 B
C
Raw Normal View History

ARM: local timers: Add A15 architected timer support Add support for the A15 generic timer and clocksource. As the timer generates interrupts on a different PPI depending on the execution mode (normal or secure), it is possible to register two different PPIs. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-12 01:25:17 +08:00
#ifndef __ASMARM_ARCH_TIMER_H
#define __ASMARM_ARCH_TIMER_H
#ifdef CONFIG_ARM_ARCH_TIMER
ARM: architected timers: add DT support Add runtime DT support and documentation for the Cortex A7/A15 architected timers. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-19 21:53:50 +08:00
int arch_timer_of_register(void);
ARM: architected timers: remove support for non DT platforms All mainline platforms using the ARM architected timers are DT only. As such, remove the ad-hoc support that is not longer needed anymore. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-04-27 20:18:42 +08:00
int arch_timer_sched_clock_init(void);
ARM: local timers: Add A15 architected timer support Add support for the A15 generic timer and clocksource. As the timer generates interrupts on a different PPI depending on the execution mode (normal or secure), it is possible to register two different PPIs. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-12 01:25:17 +08:00
#else
ARM: architected timers: add DT support Add runtime DT support and documentation for the Cortex A7/A15 architected timers. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-19 21:53:50 +08:00
static inline int arch_timer_of_register(void)
{
return -ENXIO;
}
ARM: architected timers: Add A15 specific sched_clock implementation Provide an A15 sched_clock implementation using the virtual counter, which is thought to be more useful than the physical one in a virtualised environment, as it can offset the time spent in another VM or the hypervisor. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2011-01-14 23:32:36 +08:00
static inline int arch_timer_sched_clock_init(void)
{
return -ENXIO;
}
ARM: local timers: Add A15 architected timer support Add support for the A15 generic timer and clocksource. As the timer generates interrupts on a different PPI depending on the execution mode (normal or secure), it is possible to register two different PPIs. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-01-12 01:25:17 +08:00
#endif
#endif