[RFC PATCH 06/12] arm: msm: set L2CR1 to enable prefetch and burst on Scorpion.
Pavel Machek
pavel at ucw.cz
Fri Jan 29 01:45:01 EST 2010
Hi!
> From: Larry Bassel <lbassel at quicinc.com>
>
> This change improves the following LMBench benchmarks
> by over 15%:
But what does this change do?
> @@ -242,6 +243,10 @@ __v7_setup:
> mcr p15, 0, r4, c2, c0, 1 @ load TTB1
> mov r10, #0x1f @ domains 0, 1 = manager
> mcr p15, 0, r10, c3, c0, 0 @ load domain access register
> +#ifdef CONFIG_ARCH_MSM_SCORPION
> + mov r0, #0x77
> + mcr p15, 3, r0, c15, c0, 3 @ set L2CR1
> +#endif
...probably should be explained here...
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
More information about the linux-arm-kernel
mailing list