diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-08-16 05:41:44 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-20 21:22:14 +1000 |
| commit | f204338f8e29777302042cba578b0da44f69695f (patch) | |
| tree | 854faac5f5503f932c5d08c4944142468ed27c1c /arch/powerpc/mm/book3s32/mmu.c | |
| parent | f49f4e2b68b683491263e92c229ff344d44759a7 (diff) | |
powerpc/mm: ppc 603 doesn't need update_mmu_cache()
On powerpc 603, there is no hash table so get out of
update_mmu_cache() early.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6133e0f115d955fac4061536dab0fa7480a1c433.1565933217.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/mm/book3s32/mmu.c')
| -rw-r--r-- | arch/powerpc/mm/book3s32/mmu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c index 5d7d35eb96fb..50a1991d257f 100644 --- a/arch/powerpc/mm/book3s32/mmu.c +++ b/arch/powerpc/mm/book3s32/mmu.c @@ -319,6 +319,8 @@ void hash_preload(struct mm_struct *mm, unsigned long ea) void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) { + if (!mmu_has_feature(MMU_FTR_HPTE_TABLE)) + return; /* * We don't need to worry about _PAGE_PRESENT here because we are * called with either mm->page_table_lock held or ptl lock held |