From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] clocksource: arm_arch_timer: add boot and suspend sched_clock offset
Date: Fri, 19 Apr 2013 15:46:01 +0100 [thread overview]
Message-ID: <20130419144601.GC4855@localhost.cambridge.arm.com> (raw)
In-Reply-To: <1366313410-16692-2-git-send-email-robherring2@gmail.com>
On Thu, Apr 18, 2013 at 08:30:10PM +0100, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
>
> Commit 023796b (ARM: arch_timer: use full 64-bit counter for sched_clock)
> fails to ensure sched_clock always starts at time 0 and counting is
> suspended during suspend. arm64 sched_clock support also has the same
> issues. This fixes all architected timer users by maintaining an initial
> offset which is updated on resume.
>
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: John Stultz <john.stultz@linaro.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Stephen Boyd <sboyd@codeaurora.org>
For arm64:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Rob Herring <robherring2@gmail.com>
Cc: "linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"arm@kernel.org" <arm@kernel.org>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
Russell King <linux@arm.linux.org.uk>,
John Stultz <john.stultz@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <Will.Deacon@arm.com>,
Stephen Boyd <sboyd@codeaurora.org>
Subject: Re: [PATCH 2/2] clocksource: arm_arch_timer: add boot and suspend sched_clock offset
Date: Fri, 19 Apr 2013 15:46:01 +0100 [thread overview]
Message-ID: <20130419144601.GC4855@localhost.cambridge.arm.com> (raw)
In-Reply-To: <1366313410-16692-2-git-send-email-robherring2@gmail.com>
On Thu, Apr 18, 2013 at 08:30:10PM +0100, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
>
> Commit 023796b (ARM: arch_timer: use full 64-bit counter for sched_clock)
> fails to ensure sched_clock always starts at time 0 and counting is
> suspended during suspend. arm64 sched_clock support also has the same
> issues. This fixes all architected timer users by maintaining an initial
> offset which is updated on resume.
>
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: John Stultz <john.stultz@linaro.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Stephen Boyd <sboyd@codeaurora.org>
For arm64:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2013-04-19 14:46 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 19:30 [PATCH 1/2] clocksource: arm_arch_timer: unify sched_clock init Rob Herring
2013-04-18 19:30 ` Rob Herring
2013-04-18 19:30 ` [PATCH 2/2] clocksource: arm_arch_timer: add boot and suspend sched_clock offset Rob Herring
2013-04-18 19:30 ` Rob Herring
2013-04-19 14:46 ` Catalin Marinas [this message]
2013-04-19 14:46 ` Catalin Marinas
2013-04-19 0:00 ` [PATCH 1/2] clocksource: arm_arch_timer: unify sched_clock init Stephen Boyd
2013-04-19 0:00 ` Stephen Boyd
2013-04-19 1:37 ` Rob Herring
2013-04-19 1:37 ` Rob Herring
2013-04-19 17:34 ` Stephen Boyd
2013-04-19 17:34 ` Stephen Boyd
2013-04-20 0:29 ` [PATCH 0/4] ARM 64 bit sched_clock take #2 Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-20 0:29 ` [PATCH 1/4] ARM: sched_clock: Remove unused needs_suspend member Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-20 0:29 ` [PATCH 2/4] ARM: sched_clock: Return suspended count earlier Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-20 0:29 ` [PATCH 3/4] ARM: sched_clock: Add support for >32 bit sched_clock Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-22 10:48 ` Will Deacon
2013-04-22 10:48 ` Will Deacon
2013-04-22 15:35 ` Stephen Boyd
2013-04-22 15:35 ` Stephen Boyd
2013-04-20 0:29 ` [PATCH 4/4] ARM: arch_timer: Move to setup_sched_clock_64() Stephen Boyd
2013-04-20 0:29 ` Stephen Boyd
2013-04-22 15:16 ` [PATCH 0/4] ARM 64 bit sched_clock take #2 Arnd Bergmann
2013-04-22 15:16 ` Arnd Bergmann
2013-04-22 15:34 ` Mark Rutland
2013-04-22 15:34 ` Mark Rutland
2013-04-22 15:36 ` Stephen Boyd
2013-04-22 15:36 ` Stephen Boyd
2013-04-22 15:51 ` Mark Rutland
2013-04-22 15:51 ` Mark Rutland
2013-04-22 15:51 ` Mark Rutland
2013-04-22 17:00 ` John Stultz
2013-04-22 17:00 ` John Stultz
2013-04-22 20:46 ` Rob Herring
2013-04-22 20:46 ` Rob Herring
2013-04-22 20:46 ` Rob Herring
2013-04-23 16:34 ` Stephen Boyd
2013-04-23 16:34 ` Stephen Boyd
2013-05-01 0:54 ` [PATCH 5/4] sched: Make ARM's sched_clock generic for all architectures Stephen Boyd
2013-05-01 0:54 ` Stephen Boyd
2013-05-01 0:54 ` [PATCH 6/4] arm64: Move to generic sched_clock infrastructure Stephen Boyd
2013-05-01 0:54 ` Stephen Boyd
2013-05-01 9:11 ` Catalin Marinas
2013-05-01 9:11 ` Catalin Marinas
2013-05-01 14:44 ` Christopher Covington
2013-05-01 14:44 ` Christopher Covington
2013-05-31 20:40 ` [PATCH 5/4] sched: Make ARM's sched_clock generic for all architectures John Stultz
2013-05-31 20:40 ` John Stultz
2013-05-31 22:13 ` Stephen Boyd
2013-05-31 22:13 ` Stephen Boyd
2013-05-31 23:50 ` John Stultz
2013-05-31 23:50 ` John Stultz
2013-04-19 14:45 ` [PATCH 1/2] clocksource: arm_arch_timer: unify sched_clock init Catalin Marinas
2013-04-19 14:45 ` Catalin Marinas
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