Sonny Rao 0b46b8a718 clocksource: arch_timer: Fix code to use physical timers when requested ... This is a bug fix for using physical arch timers when the arch_timer_use_virtual boolean is false. It restores the arch_counter_get_cntpct() function after removal in 0d651e4e "clocksource: arch_timer: use virtual counters" We need this on certain ARMv7 systems which are architected like this: * The firmware doesn't know and doesn't care about hypervisor mode and we don't want to add the complexity of hypervisor there. * The firmware isn't involved in SMP bringup or resume. * The ARCH timer come up with an uninitialized offset between the virtual and physical counters. Each core gets a different random offset. * The device boots in "Secure SVC" mode. * Nothing has touched the reset value of CNTHCTL.PL1PCEN or CNTHCTL.PL1PCTEN (both default to 1 at reset) One example of such as system is RK3288 where it is much simpler to use the physical counter since there's nobody managing the offset and each time a core goes down and comes back up it will get reinitialized to some other random value. Fixes: 0d651e4e65 ("clocksource: arch_timer: use virtual counters") Cc: stable@vger.kernel.org Signed-off-by: Sonny Rao <sonnyrao@chromium.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>		2014-12-04 23:30:26 -08:00
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boot	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-10-18 09:31:37 -07:00
configs	ARM64: SoC changes for 3.18	2014-10-08 17:40:02 -04:00
crypto	arm64/crypto: remove redundant update of data	2014-08-26 11:42:22 +01:00
include	clocksource: arch_timer: Fix code to use physical timers when requested	2014-12-04 23:30:26 -08:00
kernel	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
kvm	Second batch of changes for KVM/{arm,arm64} for 3.18	2014-10-18 14:32:31 -07:00
lib	arm64: lib: Implement optimized string length routines	2014-05-23 15:17:12 +01:00
mm	arm64: mm: enable RCU fast_gup	2014-10-09 22:26:01 -04:00
net	net: bpf: arm64: fix module memory leak when JIT image build fails	2014-09-12 16:33:14 +01:00
xen	arm: xen: implement multicall hypercall support.	2014-04-24 13:09:46 +01:00
Kconfig	xen: features and fixes for 3.18-rc0	2014-10-11 20:29:01 -04:00
Kconfig.debug	arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support	2014-09-08 14:39:18 +01:00
Makefile	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2014-10-14 09:22:26 +02:00