Re: [PATCH] ARM: EXYNOS4: Enable double linefill in PL310 Prefetch Control Register

On Wednesday 14 September 2011 11:38 AM, Kyungmin Park wrote:

Hi Siarhei,

Interesting feature, and it's not samsung soc issue, so add the arm mailing list. It checked and the see the read performance improvement from 868MiB/s to 981MiB/s with lmbench. It's helpful to test other SoC., e.g., OMAP4, STE and so on.

BTW, why do you set the 27-bit? In my PL310 Spec., it's reserved bit and should be zero (SBZ).

That's because not all PL310 versions double line fill.

Regards santosh