On 16 May 2011 18:26, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote:
> --- a/arch/arm/mach-omap1/time.c
> +++ b/arch/arm/mach-omap1/time.c
...
> Âstatic inline unsigned long notrace omap_mpu_timer_read(int nr)
> Â{
> - Â Â Â volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
> - Â Â Â return timer->read_tim;
> + Â Â Â omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
> + Â Â Â return readl(&timer->read_tim);
> Â}
We should start using the *_relaxed() accessors a bit more to avoid
the barriers overhead in the standard I/O accessors.
--
Catalin
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
