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SubjectRe: [PATCH v4 0/2] clocksource/drivers/dw_apb_timer: improve performance a bit
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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


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