On Feb 10, 2009, at 2:57 PM, Kumar Gala wrote:
The following commit:
commit 64b3d0e8122b422e879b23d42f9e0e8efbbf9744
Author: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Date: Thu Dec 18 19:13:51 2008 +0000
powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED
broke setting of the _PAGE_COHERENT bit in the PPC HW PTE. Since we
now
actually set _PAGE_COHERENT in the Linux PTE we shouldn't be
clearing it
out before we propogate it to the PPC HW PTE.
Reported-by: Martyn Welch <martyn.we...@gefanuc.com>
Signed-off-by: Kumar Gala <ga...@kernel.crashing.org>
I've booted 8641 dual-core and run LTP to completion with an expected
number of fails. So....
Acked-by: Becky Bruce <bec...@kernel.crashing.org>
-B
---
arch/powerpc/mm/hash_low_32.S | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/mm/hash_low_32.S b/arch/powerpc/mm/
hash_low_32.S
index 67850ec..14af8ce 100644
--- a/arch/powerpc/mm/hash_low_32.S
+++ b/arch/powerpc/mm/hash_low_32.S
@@ -320,7 +320,7 @@ _GLOBAL(create_hpte)
and r8,r8,r0 /* writable if _RW & _DIRTY */
rlwimi r5,r5,32-1,30,30 /* _PAGE_USER -> PP msb */
rlwimi r5,r5,32-2,31,31 /* _PAGE_USER -> PP lsb */
- ori r8,r8,0xe14 /* clear out reserved bits and M */
+ ori r8,r8,0xe04 /* clear out reserved bits */
andc r8,r5,r8 /* PP = user? (rw&dirty? 2: 3): 0 */
BEGIN_FTR_SECTION
rlwinm r8,r8,0,~_PAGE_COHERENT /* clear M (coherence not required) */
--
1.5.6.6
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