drm/nouveau: Use WC memory on the AGP GART.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index f4ee43db00a..f6f51b4259e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -424,8 +424,9 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                 switch (dev_priv->gart_info.type) {
                 case NOUVEAU_GART_AGP:
                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
-                        man->available_caching = TTM_PL_FLAG_UNCACHED;
-                        man->default_caching = TTM_PL_FLAG_UNCACHED;
+                        man->available_caching = TTM_PL_FLAG_UNCACHED |
+                                TTM_PL_FLAG_WC;
+                        man->default_caching = TTM_PL_FLAG_WC;
                         break;
                 case NOUVEAU_GART_SGDMA:
                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |