What the code does is equivalent to the x86 code, so let's use
it as well
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxxx>
---
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))
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