From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh.shilimkar@ti.com (Santosh) Date: Wed, 14 Sep 2011 11:43:26 +0530 Subject: [PATCH] ARM: EXYNOS4: Enable double linefill in PL310 Prefetch Control Register In-Reply-To: References: <1315894031-9579-1-git-send-email-siarhei.siamashka@gmail.com> Message-ID: <4E704606.6040606@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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