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authorDave Airlie <airlied@linux.ie>2008-12-11 17:06:35 +1000
committerDave Airlie <airlied@linux.ie>2008-12-29 17:47:24 +1000
commitae14dc0505261978ca06075ac39cc5422c6c6b57 (patch)
treee84f4ccfbb9b102dbdfb6513a3192e81eff798aa /drivers/gpu
parentaa91c6665a5e387e488c4a0b5da2536cc9c9f16e (diff)
drm: PAGE_CACHE_WC is x86 only so far
The page protections need to be checked whether they need to be more flexible. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_gem.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index b3939de6aff..9da58145287 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -516,7 +516,9 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_private_data = map->handle;
/* FIXME: use pgprot_writecombine when available */
prot = pgprot_val(vma->vm_page_prot);
+#ifdef CONFIG_X86
prot |= _PAGE_CACHE_WC;
+#endif
vma->vm_page_prot = __pgprot(prot);
vma->vm_file = filp; /* Needed for drm_vm_open() */