diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 26 | ||||
| -rw-r--r-- | arch/powerpc/kernel/sysfs.c | 6 |
2 files changed, 25 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 3cb52fa0eda3..377e0c155c95 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 diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index ef2ad92a417f..86a2ffccef25 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -134,6 +134,7 @@ void ppc_enable_pmcs(void) } EXPORT_SYMBOL(ppc_enable_pmcs); +#if defined(CONFIG_6xx) || defined(CONFIG_PPC64) /* XXX convert to rusty's on_one_cpu */ static unsigned long run_on_cpu(unsigned long cpu, unsigned long (*func)(unsigned long), @@ -152,6 +153,7 @@ static unsigned long run_on_cpu(unsigned long cpu, return ret; } +#endif #define SYSFS_PMCSETUP(NAME, ADDRESS) \ static unsigned long read_##NAME(unsigned long junk) \ @@ -190,11 +192,11 @@ static ssize_t __used \ * that are implemented on the current processor */ -#ifdef CONFIG_PPC64 +#if defined(CONFIG_PPC64) #define HAS_PPC_PMC_CLASSIC 1 #define HAS_PPC_PMC_IBM 1 #define HAS_PPC_PMC_PA6T 1 -#elif CONFIG_6xx +#elif defined(CONFIG_6xx) #define HAS_PPC_PMC_CLASSIC 1 #define HAS_PPC_PMC_IBM 1 #define HAS_PPC_PMC_G4 1 |