Commit 6bd3110c authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Dave Airlie
Browse files

drm: powerpc can use a simpler drm_io_prot() 



What the code does is equivalent to the x86 code, so let's use
it as well

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 42532512

drivers/gpu/drm/drm_vm.c

+1 −5
Original line number Diff line number Diff line
@@ -57,15 +57,11 @@ 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))