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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-24 13:38:30 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-24 13:38:30 +1100
commit9e41d9597e7825ec20d690013d32bcec5f3fe16a (patch)
treeac6fea59e9a4a1c2183d6bbd6ffa760680673afb /arch/powerpc/kernel/head_32.S
parent77ecfe8d427f554fabbf258e9d789f1d4c3afd63 (diff)
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
downloadlinux-9e41d9597e7825ec20d690013d32bcec5f3fe16a.tar.bz2
Merge commit 'origin/master' into next
Diffstat (limited to 'arch/powerpc/kernel/head_32.S')
-rw-r--r--arch/powerpc/kernel/head_32.S15
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index f8c2e6b6f457..d0bad4b93a9c 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -514,8 +514,11 @@ InstructionTLBMiss:
and r1,r1,r2 /* writable if _RW and _DIRTY */
rlwimi r3,r3,32-1,30,30 /* _PAGE_USER -> PP msb */
rlwimi r3,r3,32-1,31,31 /* _PAGE_USER -> PP lsb */
- ori r1,r1,0xe14 /* clear out reserved bits and M */
+ ori r1,r1,0xe04 /* clear out reserved bits */
andc r1,r3,r1 /* PP = user? (rw&dirty? 2: 3): 0 */
+BEGIN_FTR_SECTION
+ rlwinm r1,r1,0,~_PAGE_COHERENT /* clear M (coherence not required) */
+END_FTR_SECTION_IFCLR(CPU_FTR_NEED_COHERENT)
mtspr SPRN_RPA,r1
mfspr r3,SPRN_IMISS
tlbli r3
@@ -588,8 +591,11 @@ DataLoadTLBMiss:
and r1,r1,r2 /* writable if _RW and _DIRTY */
rlwimi r3,r3,32-1,30,30 /* _PAGE_USER -> PP msb */
rlwimi r3,r3,32-1,31,31 /* _PAGE_USER -> PP lsb */
- ori r1,r1,0xe14 /* clear out reserved bits and M */
+ ori r1,r1,0xe04 /* clear out reserved bits */
andc r1,r3,r1 /* PP = user? (rw&dirty? 2: 3): 0 */
+BEGIN_FTR_SECTION
+ rlwinm r1,r1,0,~_PAGE_COHERENT /* clear M (coherence not required) */
+END_FTR_SECTION_IFCLR(CPU_FTR_NEED_COHERENT)
mtspr SPRN_RPA,r1
mfspr r3,SPRN_DMISS
tlbld r3
@@ -656,8 +662,11 @@ DataStoreTLBMiss:
stw r3,0(r2) /* update PTE (accessed/dirty bits) */
/* Convert linux-style PTE to low word of PPC-style PTE */
rlwimi r3,r3,32-1,30,30 /* _PAGE_USER -> PP msb */
- li r1,0xe15 /* clear out reserved bits and M */
+ li r1,0xe05 /* clear out reserved bits & PP lsb */
andc r1,r3,r1 /* PP = user? 2: 0 */
+BEGIN_FTR_SECTION
+ rlwinm r1,r1,0,~_PAGE_COHERENT /* clear M (coherence not required) */
+END_FTR_SECTION_IFCLR(CPU_FTR_NEED_COHERENT)
mtspr SPRN_RPA,r1
mfspr r3,SPRN_DMISS
tlbld r3