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(-) -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
