What the code does is equivalent to the x86 code, so let's use it as well
Signed-off-by: Benjamin Herrenschmidt benh@palm4.ozlabs.ibm.com --- drivers/gpu/drm/drm_vm.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index 24e045c..ed02563 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -48,15 +48,11 @@ static pgprot_t drm_io_prot(struct drm_local_map *map, { pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
-#if defined(__i386__) || defined(__x86_64__) +#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) if (map->type == _DRM_REGISTERS && !(map->flags & _DRM_WRITE_COMBINING)) tmp = pgprot_noncached(tmp); else tmp = pgprot_writecombine(tmp); -#elif defined(__powerpc__) - pgprot_val(tmp) |= _PAGE_NO_CACHE; - if (map->type == _DRM_REGISTERS) - pgprot_val(tmp) |= _PAGE_GUARDED; #elif defined(__ia64__) if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))