diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/pgtable.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/book3s/pgtable.h b/arch/powerpc/include/asm/book3s/pgtable.h index e8269434ecbe..d18b748ea3ae 100644 --- a/arch/powerpc/include/asm/book3s/pgtable.h +++ b/arch/powerpc/include/asm/book3s/pgtable.h @@ -25,7 +25,8 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot); #define __HAVE_PHYS_MEM_ACCESS_PROT -#if defined(CONFIG_PPC32) || defined(CONFIG_PPC_64S_HASH_MMU) +void __update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); + /* * This gets called at the end of handling a page fault, when * the kernel has put a new PTE into the page table for the process. @@ -35,10 +36,14 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, * corresponding HPTE into the hash table ahead of time, instead of * waiting for the inevitable extra hash-table miss exception. */ -void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); -#else -static inline void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) {} -#endif +static inline void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) +{ + if (IS_ENABLED(CONFIG_PPC32) && !mmu_has_feature(MMU_FTR_HPTE_TABLE)) + return; + if (radix_enabled()) + return; + __update_mmu_cache(vma, address, ptep); +} #endif /* __ASSEMBLY__ */ #endif |