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authorStephen Boyd <sboyd@codeaurora.org>2013-07-18 16:21:18 -0700
committerAjay Nandakumar <anandakumarm@nvidia.com>2014-01-13 12:03:37 +0530
commit6220dca122e5d31ff3a167d14680e424664b8c7a (patch)
tree4082e26409646a83a22b410ac1ba1fa0028addff /kernel
parent9677b59f55e348c330eeb8cd9a6f7b2f613839a5 (diff)
arch_timer: Move to generic sched_clock framework
Register with the generic sched_clock framework now that it supports 64 bits. This fixes two problems with the current sched_clock support for machines using the architected timers. First off, we don't subtract the start value from subsequent sched_clock calls so we can potentially start off with sched_clock returning gigantic numbers. Second, there is no support for suspend/resume handling so problems such as discussed in 6a4dae5 (ARM: 7565/1: sched: stop sched_clock() during suspend, 2012-10-23) can happen without this patch. Finally, it allows us to move the sched_clock setup into drivers clocksource out of the arch ports. Bug 1399318 Cc: Christopher Covington <cov@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: John Stultz <john.stultz@linaro.org> (cherry picked from commit 65cd4f6c99c1170bd0114dbd71b978012ea44d28) Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com> Change-Id: I77dde73ba0c325c67275e72220419fd47faf4206
Diffstat (limited to 'kernel')
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