It seems gcc can automatically inline apbt_writel() for us, but
apbt_real isn't inlined. This patch makes them inline to get a trivial
performance improvement: 4096 rounds of __apbt_read_clocksource() call
spend time on Marvell BG4CT platform:
before the patch 1275240ns on average
after the patch 1263240ns on average
so we get 1% performance improvement.
Signed-off-by: Jisheng Zhang <jszh...@marvell.com>
---
drivers/clocksource/dw_apb_timer.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/dw_apb_timer.c
b/drivers/clocksource/dw_apb_timer.c
index 3a6d9db..114696b 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -49,13 +49,13 @@ clocksource_to_dw_apb_clocksource(struct clocksource *cs)
return container_of(cs, struct dw_apb_clocksource, cs);
}
-static u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs)
+static inline u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs)
{
return readl(timer->base + offs);
}
-static void apbt_writel(struct dw_apb_timer *timer, u32 val,
- unsigned long offs)
+static inline void apbt_writel(struct dw_apb_timer *timer, u32 val,
+ unsigned long offs)
{
writel(val, timer->base + offs);
}
--
2.6.2
--
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