ttm: fix agp since ttm tt rework

ttm tt rework modified the way we allocate and populate the
ttm_tt structure, the AGP side was missing some bit to properly
work. Fix those and fix radeon and nouveau AGP support.

Tested on radeon only so far.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 1882025a9dc8..c421e77ace71 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -618,6 +618,11 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
                 return 0;
 
         rdev = radeon_get_rdev(ttm->bdev);
+#if __OS_HAS_AGP
+        if (rdev->flags & RADEON_IS_AGP) {
+                return ttm_agp_tt_populate(ttm);
+        }
+#endif
 
 #ifdef CONFIG_SWIOTLB
         if (swiotlb_nr_tbl()) {
@@ -654,6 +659,12 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
         unsigned i;
 
         rdev = radeon_get_rdev(ttm->bdev);
+#if __OS_HAS_AGP
+        if (rdev->flags & RADEON_IS_AGP) {
+                ttm_agp_tt_unpopulate(ttm);
+                return;
+        }
+#endif
 
 #ifdef CONFIG_SWIOTLB
         if (swiotlb_nr_tbl()) {