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>

2 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
index 14ebd3650aa9..747c1413fc95 100644
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c
@@ -31,6 +31,7 @@
 
 #include "ttm/ttm_module.h"
 #include "ttm/ttm_bo_driver.h"
+#include "ttm/ttm_page_alloc.h"
 #ifdef TTM_HAS_AGP
 #include "ttm/ttm_placement.h"
 #include <linux/agp_backend.h>
@@ -97,6 +98,7 @@ static void ttm_agp_destroy(struct ttm_tt *ttm)
 
         if (agp_be->mem)
                 ttm_agp_unbind(ttm);
+        ttm_tt_fini(ttm);
         kfree(agp_be);
 }
 
@@ -129,4 +131,19 @@ struct ttm_tt *ttm_agp_tt_create(struct ttm_bo_device *bdev,
 }
 EXPORT_SYMBOL(ttm_agp_tt_create);
 
+int ttm_agp_tt_populate(struct ttm_tt *ttm)
+{
+        if (ttm->state != tt_unpopulated)
+                return 0;
+
+        return ttm_pool_populate(ttm);
+}
+EXPORT_SYMBOL(ttm_agp_tt_populate);
+
+void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
+{
+        ttm_pool_unpopulate(ttm);
+}
+EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
+
 #endif
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 58e1fa14fe3a..2f75d203a2bf 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -191,6 +191,7 @@ int ttm_tt_init(struct ttm_tt *ttm, struct ttm_bo_device *bdev,
         ttm->page_flags = page_flags;
         ttm->dummy_read_page = dummy_read_page;
         ttm->state = tt_unpopulated;
+        ttm->swap_storage = NULL;
 
         ttm_tt_alloc_page_directory(ttm);
         if (!ttm->pages) {
@@ -222,6 +223,7 @@ int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
         ttm->page_flags = page_flags;
         ttm->dummy_read_page = dummy_read_page;
         ttm->state = tt_unpopulated;
+        ttm->swap_storage = NULL;
 
         INIT_LIST_HEAD(&ttm_dma->pages_list);
         ttm_dma_tt_alloc_page_directory(ttm_dma);