drm/ttm: add default implementations for ttm_tt_(un)populate
Use ttm_pool_populate/ttm_pool_unpopulate if the driver doesn't provide
a function.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 9fd7115..65bf4eac 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -410,7 +410,10 @@ int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
if (ttm->state != tt_unpopulated)
return 0;
- ret = ttm->bdev->driver->ttm_tt_populate(ttm, ctx);
+ if (ttm->bdev->driver->ttm_tt_populate)
+ ret = ttm->bdev->driver->ttm_tt_populate(ttm, ctx);
+ else
+ ret = ttm_pool_populate(ttm, ctx);
if (!ret)
ttm_tt_add_mapping(ttm);
return ret;
@@ -436,5 +439,8 @@ void ttm_tt_unpopulate(struct ttm_tt *ttm)
return;
ttm_tt_clear_mapping(ttm);
- ttm->bdev->driver->ttm_tt_unpopulate(ttm);
+ if (ttm->bdev->driver->ttm_tt_unpopulate)
+ ttm->bdev->driver->ttm_tt_unpopulate(ttm);
+ else
+ ttm_pool_unpopulate(ttm);
}