summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/head_fsl_booke.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
-rw-r--r--arch/powerpc/kernel/head_fsl_booke.S26
1 files changed, 21 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 3cb52fa0eda..377e0c155c9 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -579,13 +579,19 @@ interrupt_base:
FIND_PTE
andc. r13,r13,r11 /* Check permission */
- bne 2f /* Bail if permission mismach */
#ifdef CONFIG_PTE_64BIT
- lwz r13, 0(r12)
+#ifdef CONFIG_SMP
+ subf r10,r11,r12 /* create false data dep */
+ lwzx r13,r11,r10 /* Get upper pte bits */
+#else
+ lwz r13,0(r12) /* Get upper pte bits */
+#endif
#endif
- /* Jump to common tlb load */
+ bne 2f /* Bail if permission/valid mismach */
+
+ /* Jump to common tlb load */
b finish_tlb_load
2:
/* The bailout. Restore registers to pre-exception conditions
@@ -640,10 +646,20 @@ interrupt_base:
FIND_PTE
andc. r13,r13,r11 /* Check permission */
+
+#ifdef CONFIG_PTE_64BIT
+#ifdef CONFIG_SMP
+ subf r10,r11,r12 /* create false data dep */
+ lwzx r13,r11,r10 /* Get upper pte bits */
+#else
+ lwz r13,0(r12) /* Get upper pte bits */
+#endif
+#endif
+
bne 2f /* Bail if permission mismach */
#ifdef CONFIG_PTE_64BIT
- lwz r13, 0(r12)
+ lwz r13,0(r12)
#endif
/* Jump to common TLB load point */
@@ -702,7 +718,7 @@ interrupt_base:
/*
* Both the instruction and data TLB miss get to this
* point to load the TLB.
- * r10 - EA of fault
+ * r10 - available to use
* r11 - TLB (info from Linux PTE)
* r12 - available to use
* r13 - upper bits of PTE (if PTE_64BIT) or available to use