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(parent: 4a280a4) | patch
powerpc/8xx: Restore _PAGE_WRITETHRU
authorJoakim Tjernlund <joakim.tjernlund@transmode.se>
Fri, 20 Nov 2009 00:21:08 +0000 (00:21 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 9 Dec 2009 06:10:37 +0000 (17:10 +1100)
commit0c4661698c58db2a9efc44f403b893bd4d98f348
tree29fe4235a9aa51e045cc3d4056a0ecc71de48383tree | snapshot (tar.gz zip)
parent4a280a413c0c0da03936483384c9e5142966635ecommit | diff
powerpc/8xx: Restore _PAGE_WRITETHRU

8xx has not had WRITETHRU due to lack of bits in the pte.
After the recent rewrite of the 8xx TLB code, there are
two bits left. Use one of them to WRITETHRU.

Perhaps use the last SW bit to PAGE_SPECIAL or PAGE_FILE?

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/pte-8xx.h diff | blob | blame | history
arch/powerpc/kernel/head_8xx.S diff | blob | blame | history