diff options
Diffstat (limited to 'arch/powerpc/include/asm/tlbflush.h')
| -rw-r--r-- | arch/powerpc/include/asm/tlbflush.h | 84 |
1 files changed, 43 insertions, 41 deletions
diff --git a/arch/powerpc/include/asm/tlbflush.h b/arch/powerpc/include/asm/tlbflush.h index 361cd5c7a32b..abbe3419d1dd 100644 --- a/arch/powerpc/include/asm/tlbflush.h +++ b/arch/powerpc/include/asm/tlbflush.h @@ -6,6 +6,9 @@ * * - flush_tlb_mm(mm) flushes the specified mm context TLB's * - flush_tlb_page(vma, vmaddr) flushes one page + * - local_flush_tlb_mm(mm) flushes the specified mm context on + * the local processor + * - local_flush_tlb_page(vma, vmaddr) flushes one page on the local processor * - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB * - flush_tlb_range(vma, start, end) flushes a range of pages * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages @@ -17,7 +20,7 @@ */ #ifdef __KERNEL__ -#if defined(CONFIG_4xx) || defined(CONFIG_8xx) || defined(CONFIG_FSL_BOOKE) +#ifdef CONFIG_PPC_MMU_NOHASH /* * TLB flushing for software loaded TLB chips * @@ -28,60 +31,49 @@ #include <linux/mm.h> -extern void _tlbie(unsigned long address, unsigned int pid); +#define MMU_NO_CONTEXT ((unsigned int)-1) -#if defined(CONFIG_40x) || defined(CONFIG_8xx) -#define _tlbia() asm volatile ("tlbia; sync" : : : "memory") -#else /* CONFIG_44x || CONFIG_FSL_BOOKE */ -extern void _tlbia(void); -#endif - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - _tlbia(); -} - -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long vmaddr) -{ - _tlbie(vmaddr, vma ? vma->vm_mm->context.id : 0); -} +extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); -static inline void flush_tlb_page_nohash(struct vm_area_struct *vma, - unsigned long vmaddr) -{ - _tlbie(vmaddr, vma ? vma->vm_mm->context.id : 0); -} +extern void local_flush_tlb_mm(struct mm_struct *mm); +extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - _tlbia(); -} +#ifdef CONFIG_SMP +extern void flush_tlb_mm(struct mm_struct *mm); +extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +#else +#define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#define flush_tlb_page(vma,addr) local_flush_tlb_page(vma,addr) +#endif +#define flush_tlb_page_nohash(vma,addr) flush_tlb_page(vma,addr) -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - _tlbia(); -} +#elif defined(CONFIG_PPC_STD_MMU_32) -#elif defined(CONFIG_PPC32) /* - * TLB flushing for "classic" hash-MMMU 32-bit CPUs, 6xx, 7xx, 7xxx + * TLB flushing for "classic" hash-MMU 32-bit CPUs, 6xx, 7xx, 7xxx */ -extern void _tlbie(unsigned long address); -extern void _tlbia(void); - extern void flush_tlb_mm(struct mm_struct *mm); extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr); extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); +static inline void local_flush_tlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) +{ + flush_tlb_page(vma, vmaddr); +} +static inline void local_flush_tlb_mm(struct mm_struct *mm) +{ + flush_tlb_mm(mm); +} + +#elif defined(CONFIG_PPC_STD_MMU_64) -#else /* - * TLB flushing for 64-bit has-MMU CPUs + * TLB flushing for 64-bit hash-MMU CPUs */ #include <linux/percpu.h> @@ -131,10 +123,19 @@ extern void flush_hash_page(unsigned long va, real_pte_t pte, int psize, extern void flush_hash_range(unsigned long number, int local); +static inline void local_flush_tlb_mm(struct mm_struct *mm) +{ +} + static inline void flush_tlb_mm(struct mm_struct *mm) { } +static inline void local_flush_tlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) +{ +} + static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) { @@ -159,7 +160,8 @@ static inline void flush_tlb_kernel_range(unsigned long start, extern void __flush_hash_table_range(struct mm_struct *mm, unsigned long start, unsigned long end); - +#else +#error Unsupported MMU type #endif #endif /*__KERNEL__ */ |