diff options
Diffstat (limited to 'include/asm-powerpc/pgtable.h')
| -rw-r--r-- | include/asm-powerpc/pgtable.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h index d18ffe7bc7c4..dbb8ca172e44 100644 --- a/include/asm-powerpc/pgtable.h +++ b/include/asm-powerpc/pgtable.h @@ -38,6 +38,19 @@ extern void paging_init(void); remap_pfn_range(vma, vaddr, pfn, size, prot) #include <asm-generic/pgtable.h> + + +/* + * 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. + * We use it to ensure coherency between the i-cache and d-cache + * for the page which has just been mapped in. + * On machines which use an MMU hash table, we use this to put a + * corresponding HPTE into the hash table ahead of time, instead of + * waiting for the inevitable extra hash-table miss exception. + */ +extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ |