drm/ttm: add move old to system to drivers.

Uninline ttm_bo_move_ttm. Eventually want to unhook the unbind out.
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201019071314.1671485-5-airlied@gmail.com

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

@@ -562,7 +562,11 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo, bool evict,
 	}
 
 	/* move BO (in tmp_mem) to new_mem */
-	r = ttm_bo_move_ttm(bo, ctx, new_mem);
+	r = ttm_bo_move_to_system(bo, ctx);
+	if (unlikely(r))
+		goto out_cleanup;
+
+	ttm_bo_assign_mem(bo, new_mem);
 out_cleanup:
 	ttm_resource_free(bo, &tmp_mem);
 	return r;
@@ -672,8 +676,13 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
 	}
 
 	if (old_mem->mem_type == TTM_PL_TT &&
-	    new_mem->mem_type == TTM_PL_SYSTEM)
-		return ttm_bo_move_ttm(bo, ctx, new_mem);
+	    new_mem->mem_type == TTM_PL_SYSTEM) {
+		r = ttm_bo_move_to_system(bo, ctx);
+		if (r)
+			return r;
+		ttm_bo_assign_mem(bo, new_mem);
+		return 0;
+	}
 
 	if (old_mem->mem_type == AMDGPU_PL_GDS ||
 	    old_mem->mem_type == AMDGPU_PL_GWS ||

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -897,7 +897,11 @@ nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict,
 	if (ret)
 		goto out;
 
-	ret = ttm_bo_move_ttm(bo, ctx, new_reg);
+	ret = ttm_bo_move_to_system(bo, ctx);
+	if (ret)
+		goto out;
+
+	ttm_bo_assign_mem(bo, &tmp_reg);
 out:
 	ttm_resource_free(bo, &tmp_reg);
 	return ret;
@@ -1048,7 +1052,10 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
 
 	if (old_reg->mem_type == TTM_PL_TT &&
 	    new_reg->mem_type == TTM_PL_SYSTEM) {
-		ret = ttm_bo_move_ttm(bo, ctx, new_reg);
+		ret = ttm_bo_move_to_system(bo, ctx);
+		if (ret)
+			return ret;
+		ttm_bo_assign_mem(bo, new_reg);
 		goto out;
 	}
 

drivers/gpu/drm/radeon/radeon_ttm.c

@@ -244,7 +244,11 @@ static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
 	if (unlikely(r)) {
 		goto out_cleanup;
 	}
-	r = ttm_bo_move_ttm(bo, ctx, new_mem);
+	r = ttm_bo_move_to_system(bo, ctx);
+	if (unlikely(r))
+		goto out_cleanup;
+
+	ttm_bo_assign_mem(bo, new_mem);
 out_cleanup:
 	ttm_resource_free(bo, &tmp_mem);
 	return r;
@@ -319,9 +323,14 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
 	}
 
 	if (old_mem->mem_type == TTM_PL_TT &&
-	    new_mem->mem_type == TTM_PL_SYSTEM)
-		return ttm_bo_move_ttm(bo, ctx, new_mem);
+	    new_mem->mem_type == TTM_PL_SYSTEM) {
+		r = ttm_bo_move_to_system(bo, ctx);
+		if (r)
+			return r;
 
+		ttm_bo_assign_mem(bo, new_mem);
+		return 0;
+	}
 	if (!rdev->ring[radeon_copy_ring_index(rdev)].ready ||
 	    rdev->asic->copy.copy == NULL) {
 		/* use memcpy */

drivers/gpu/drm/ttm/ttm_bo_util.c

@@ -66,8 +66,8 @@ int ttm_bo_move_to_new_tt_mem(struct ttm_buffer_object *bo,
 }
 EXPORT_SYMBOL(ttm_bo_move_to_new_tt_mem);
 
-static int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
-				 struct ttm_operation_ctx *ctx)
+int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
+			  struct ttm_operation_ctx *ctx)
 {
 	struct ttm_resource *old_mem = &bo->mem;
 	int ret;
@@ -87,6 +87,7 @@ static int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
 	old_mem->mem_type = TTM_PL_SYSTEM;
 	return 0;
 }
+EXPORT_SYMBOL(ttm_bo_move_to_system);
 
 int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
 		   struct ttm_operation_ctx *ctx,

drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c

@@ -735,13 +735,18 @@ static int vmw_move(struct ttm_buffer_object *bo,
 {
 	struct ttm_resource_manager *old_man = ttm_manager_type(bo->bdev, bo->mem.mem_type);
 	struct ttm_resource_manager *new_man = ttm_manager_type(bo->bdev, new_mem->mem_type);
+	int ret;
 
 	if (old_man->use_tt && new_man->use_tt) {
 		if (bo->mem.mem_type == TTM_PL_SYSTEM) {
 			ttm_bo_assign_mem(bo, new_mem);
 			return 0;
 		}
-		return ttm_bo_move_ttm(bo, ctx, new_mem);
+		ret = ttm_bo_move_to_system(bo, ctx);
+		if (ret)
+			return ret;
+		ttm_bo_assign_mem(bo, new_mem);
+		return 0;
 	} else {
 		return ttm_bo_move_memcpy(bo, ctx, new_mem);
 	}

include/drm/ttm/ttm_bo_driver.h

@@ -596,6 +596,8 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
 int ttm_bo_move_to_new_tt_mem(struct ttm_buffer_object *bo,
 			      struct ttm_operation_ctx *ctx,
 			      struct ttm_resource *new_mem);
+int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
+			  struct ttm_operation_ctx *ctx);
 
 /**
  * ttm_bo_move_memcpy