diff options
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 3cb52fa0eda3..590304c24dad 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -422,7 +422,6 @@ skpinv: addi r6,r6,1 /* Increment */ * r12 is pointer to the pte */ #ifdef CONFIG_PTE_64BIT -#define PTE_FLAGS_OFFSET 4 #define FIND_PTE \ rlwinm r12, r10, 13, 19, 29; /* Compute pgdir/pmd offset */ \ lwzx r11, r12, r11; /* Get pgd/pmd entry */ \ @@ -431,7 +430,6 @@ skpinv: addi r6,r6,1 /* Increment */ rlwimi r12, r10, 23, 20, 28; /* Compute pte address */ \ lwz r11, 4(r12); /* Get pte entry */ #else -#define PTE_FLAGS_OFFSET 0 #define FIND_PTE \ rlwimi r11, r10, 12, 20, 29; /* Create L1 (pgdir/pmd) address */ \ lwz r11, 0(r11); /* Get L1 entry */ \ @@ -579,13 +577,19 @@ 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 @@ -640,12 +644,18 @@ 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 + bne 2f /* Bail if permission mismach */ + /* Jump to common TLB load point */ b finish_tlb_load @@ -702,7 +712,7 @@ 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 |