drm/ttm: recognize ARM arch in ioprot handler

Nouveau can now be used on ARM, so add an ioprot handler for this
architecture.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 1df856f..30e5d90 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -500,7 +500,7 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp)
                        pgprot_val(tmp) |= _PAGE_GUARDED;
        }
 #endif
-#if defined(__ia64__)
+#if defined(__ia64__) || defined(__arm__)
        if (caching_flags & TTM_PL_FLAG_WC)
                tmp = pgprot_writecombine(tmp);
        else