linux/drivers/clocksource
Marc Zyngier 985c0679df arm64: Generic timers support
This patch adds support for the ARM generic timers with A64 instructions
for accessing the timer registers. It uses the physical counter as the
clock source and the virtual counter as sched_clock.

The timer frequency can be specified via DT or read from the CNTFRQ_EL0
register. The physical counter is also accessible from user space
allowing fast gettimeofday() implementation.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-17 13:42:20 +01:00
..
acpi_pm.c Revert "clocksource: Load the ACPI PM clocksource asynchronously" 2012-04-12 00:05:05 +02:00
arm_generic.c arm64: Generic timers support 2012-09-17 13:42:20 +01:00
clksrc-dbx500-prcmu.c clocksource: dbx500: convert to clocksource_register_hz() 2012-02-01 18:37:37 -08:00
cs5535-clockevt.c cs5535-clockevt: typo, it's MFGPT, not MFPGT 2012-08-21 16:45:02 -07:00
cyclone.c clocksource: cyclone: Add missing iounmap 2012-01-26 19:30:40 -08:00
dw_apb_timer.c
dw_apb_timer_of.c clocksource: dw_apb_timer: Add common DTS glue for dw_apb_timer 2012-07-12 17:26:09 +02:00
em_sti.c clocksource: em_sti: Add DT support 2012-05-25 11:32:06 +02:00
i8253.c
Kconfig arm64: Generic timers support 2012-09-17 13:42:20 +01:00
Makefile arm64: Generic timers support 2012-09-17 13:42:20 +01:00
mmio.c
scx200_hrt.c clocksource: scx200_hrt: Fix the build 2012-02-22 13:25:16 +01:00
sh_cmt.c clocksource: sh_cmt: Convert timer lock to raw spinlock. 2012-06-11 16:01:38 +09:00
sh_mtu2.c clocksource: sh_mtu2: Convert timer lock to raw spinlock. 2012-06-11 16:01:42 +09:00
sh_tmu.c clocksource: sh_tmu: Use clockevents_config_and_register(). 2012-06-11 17:10:16 +09:00
tcb_clksrc.c ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter 2012-03-01 13:38:49 +01:00
time-armada-370-xp.c clocksource: time-armada-370-xp: Marvell Armada 370/XP SoC timer driver 2012-07-10 15:47:46 +02:00