From 88932a7be27d892aef21ff05428a55fefa091716 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 6 Jun 2016 10:17:53 +0200
Subject: drm/ttm: add wait for idle in all drivers bo_move functions
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Wait for idle before moving the BO in all drivers implementing
an accelerated move function.

This should keep the current behavior when removing the pre move wait.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 3b9053a..0a6a632 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -390,6 +390,10 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
 	struct ttm_mem_reg *old_mem = &bo->mem;
 	int r;
 
+	r = ttm_bo_wait(bo, interruptible, no_wait_gpu);
+	if (r)
+		return r;
+
 	/* Can't move a pinned BO */
 	abo = container_of(bo, struct amdgpu_bo, tbo);
 	if (WARN_ON_ONCE(abo->pin_count > 0))
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 5e3f3e8..a43f309 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1289,6 +1289,10 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
 	struct nouveau_drm_tile *new_tile = NULL;
 	int ret = 0;
 
+	ret = ttm_bo_wait(bo, intr, no_wait_gpu);
+	if (ret)
+		return ret;
+
 	if (nvbo->pin_refcnt)
 		NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
 
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 0738d74..89e8be9 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -350,6 +350,13 @@ static int qxl_bo_move(struct ttm_buffer_object *bo,
 		       struct ttm_mem_reg *new_mem)
 {
 	struct ttm_mem_reg *old_mem = &bo->mem;
+	int ret;
+
+	ret = ttm_bo_wait(bo, interruptible, no_wait_gpu);
+	if (ret)
+		return ret;
+
+
 	if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
 		qxl_move_null(bo, new_mem);
 		return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 590b037..1cc4870 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -403,6 +403,10 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
 	struct ttm_mem_reg *old_mem = &bo->mem;
 	int r;
 
+	r = ttm_bo_wait(bo, interruptible, no_wait_gpu);
+	if (r)
+		return r;
+
 	/* Can't move a pinned BO */
 	rbo = container_of(bo, struct radeon_bo, tbo);
 	if (WARN_ON_ONCE(rbo->pin_count > 0))
diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index a058081..80482ac 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -375,6 +375,12 @@ static int virtio_gpu_bo_move(struct ttm_buffer_object *bo,
 			      bool no_wait_gpu,
 			      struct ttm_mem_reg *new_mem)
 {
+	int ret;
+
+	ret = ttm_bo_wait(bo, interruptible, no_wait_gpu);
+	if (ret)
+		return ret;
+
 	virtio_gpu_move_null(bo, new_mem);
 	return 0;
 }
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