diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/tlbflush.h | 15 | ||||
| -rw-r--r-- | arch/powerpc/mm/nohash/tlb.c | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/tlbflush.h b/arch/powerpc/include/asm/nohash/tlbflush.h index 1edb7243e515..c08d25e3e626 100644 --- a/arch/powerpc/include/asm/nohash/tlbflush.h +++ b/arch/powerpc/include/asm/nohash/tlbflush.h @@ -32,11 +32,26 @@ 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); +#ifdef CONFIG_PPC_8xx +static inline void local_flush_tlb_mm(struct mm_struct *mm) +{ + unsigned int pid = READ_ONCE(mm->context.id); + + if (pid != MMU_NO_CONTEXT) + asm volatile ("sync; tlbia; isync" : : : "memory"); +} + +static inline void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) +{ + asm volatile ("tlbie %0; sync" : : "r" (vmaddr) : "memory"); +} +#else extern void local_flush_tlb_mm(struct mm_struct *mm); extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, int tsize, int ind); +#endif #ifdef CONFIG_SMP extern void flush_tlb_mm(struct mm_struct *mm); diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c index fc195b9f524b..89353d4f5604 100644 --- a/arch/powerpc/mm/nohash/tlb.c +++ b/arch/powerpc/mm/nohash/tlb.c @@ -185,6 +185,7 @@ EXPORT_PER_CPU_SYMBOL(next_tlbcam_idx); * processor */ +#ifndef CONFIG_PPC_8xx /* * These are the base non-SMP variants of page and mm flushing */ @@ -218,6 +219,7 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) mmu_get_tsize(mmu_virtual_psize), 0); } EXPORT_SYMBOL(local_flush_tlb_page); +#endif /* * And here are the SMP non-local implementations |