From mboxrd@z Thu Jan 1 00:00:00 1970
From: daniel.lezcano@linaro.org (Daniel Lezcano)
Date: Tue, 15 Dec 2015 21:42:05 +0100
Subject: [PATCH v4 0/2] clocksource/drivers/dw_apb_timer: improve
performance a bit
In-Reply-To: <1448467313-5626-1-git-send-email-jszhang@marvell.com>
References: <1448467313-5626-1-git-send-email-jszhang@marvell.com>
Message-ID: <56707B1D.10807@linaro.org>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org
On 11/25/2015 05:01 PM, Jisheng Zhang wrote:
> These two patches try to improve the dw_apb_timer clocksource/clockevent
> performance.
>
> These patches depend on the apbt_readl return value fix patch:
>
> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/388250.html
>
> since v3:
> - fix commit msg: we measured 4096 rounds of function call. So add this
> information into commit msg to avoid confusion.
>
> since v2:
> - only use relaxed version in critical path
> - inline apbt_readl/apbt_writel
> - add some performance numbers
>
> since v1:
> - correct the wrong sentence in commit msg about writel performance on
> CA9 with outer L2 cache. Thank Arnd for pointing out this in another
> thread.
>
>
> Jisheng Zhang (2):
> clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel
> clocksource/drivers/dw_apb_timer: Use {readl|writel}_relaxed in
> critical path
>
> drivers/clocksource/dw_apb_timer.c | 30 +++++++++++++++++++++---------
> 1 file changed, 21 insertions(+), 9 deletions(-)
Applied.
Thanks !
-- Daniel
--
Linaro.org ? Open source software for ARM SoCs
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Subject: Re: [PATCH v4 0/2] clocksource/drivers/dw_apb_timer: improve
performance a bit
To: Jisheng Zhang , tglx@linutronix.de, arnd@arndb.de
References: <1448467313-5626-1-git-send-email-jszhang@marvell.com>
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
From: Daniel Lezcano
Message-ID: <56707B1D.10807@linaro.org>
Date: Tue, 15 Dec 2015 21:42:05 +0100
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On 11/25/2015 05:01 PM, Jisheng Zhang wrote:
> These two patches try to improve the dw_apb_timer clocksource/clockevent
> performance.
>
> These patches depend on the apbt_readl return value fix patch:
>
> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/388250.html
>
> since v3:
> - fix commit msg: we measured 4096 rounds of function call. So add this
> information into commit msg to avoid confusion.
>
> since v2:
> - only use relaxed version in critical path
> - inline apbt_readl/apbt_writel
> - add some performance numbers
>
> since v1:
> - correct the wrong sentence in commit msg about writel performance on
> CA9 with outer L2 cache. Thank Arnd for pointing out this in another
> thread.
>
>
> Jisheng Zhang (2):
> clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel
> clocksource/drivers/dw_apb_timer: Use {readl|writel}_relaxed in
> critical path
>
> drivers/clocksource/dw_apb_timer.c | 30 +++++++++++++++++++++---------
> 1 file changed, 21 insertions(+), 9 deletions(-)
Applied.
Thanks !
-- Daniel
--
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook |
Twitter |
Blog