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[ARM] Feroceon: Feroceon-specific WA-cache compatible {copy,clear}_user_page()

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This patch implements a set of Feroceon-specific
{copy,clear}_user_page() routines that perform more optimally than
the generic implementations.  This also deals with write-allocate
caches (Feroceon can run L1 D in WA mode) which otherwise prevents
Linux from booting.

[nico: optimized the code even further]

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Tested-by: Sylver Bruneau <sylver.bruneau@googlemail.com>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
This commit is contained in:
Lennert Buytenhek
2008-04-24 01:31:45 -04:00
committed by Nicolas Pitre
parent 6b29e681aa
commit 0ed1507183
5 changed files with 110 additions and 3 deletions
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arch/arm/mm/Kconfig
+4 -1
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@@ -372,7 +372,7 @@ config CPU_FEROCEON
select CPU_PABRT_NOIFAR
select CPU_CACHE_VIVT
select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
select CPU_COPY_FEROCEON if MMU
select CPU_TLB_V4WBI if MMU
config CPU_FEROCEON_OLD_ID
@@ -523,6 +523,9 @@ config CPU_COPY_V4WT
config CPU_COPY_V4WB
bool
config CPU_COPY_FEROCEON
bool
config CPU_COPY_V6
bool