From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 25 Jun 2012 13:59:38 +0000 (+0100)
Subject: ARM: 7436/1: Do not map the vectors page as write-through on UP systems
X-Git-Tag: v3.6-rc1~70^2^5~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ad86ddde0345e903eb74837e52cf19fe0c7f825;p=pandora-kernel.git

ARM: 7436/1: Do not map the vectors page as write-through on UP systems

The vectors page has been traditionally mapped as WT on UP systems but
this creates a mismatched alias with the directly mapped RAM that is
using WB attributes. On newer processors like Cortex-A15 this has
implications on the data/instructions coherency at the point of
unification (usually L2).

This patch removes such restriction.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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