openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Benjamin Herrenschmidt 2014-09-04 17:46:45 +10:00 committed by Dave Airlie
parent 42532512ee
commit 6bd3110ce6
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/drm_vm.c
View File

@ -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))