drm/ttm/vmwgfx: Have TTM manage the validation sequence.

Rather than having the driver supply the validation sequence, leave that
responsibility to TTM. This saves some confusion and a function argument.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 551a5d31cadf..25e4c2a1d1d8 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1539,6 +1539,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
         bdev->dev_mapping = NULL;
         bdev->glob = glob;
         bdev->need_dma32 = need_dma32;
+        bdev->val_seq = 0;
         spin_lock_init(&bdev->fence_lock);
         mutex_lock(&glob->device_list_mutex);
         list_add_tail(&bdev->device_list, &glob->device_list);
diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index b6da65cc502a..3832fe10b4df 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -126,11 +126,12 @@ EXPORT_SYMBOL(ttm_eu_backoff_reservation);
  * buffers in different orders.
  */
 
-int ttm_eu_reserve_buffers(struct list_head *list, uint32_t val_seq)
+int ttm_eu_reserve_buffers(struct list_head *list)
 {
         struct ttm_bo_global *glob;
         struct ttm_validate_buffer *entry;
         int ret;
+        uint32_t val_seq;
 
         if (list_empty(list))
                 return 0;
@@ -146,6 +147,8 @@ int ttm_eu_reserve_buffers(struct list_head *list, uint32_t val_seq)
 
 retry:
         spin_lock(&glob->lru_lock);
+        val_seq = entry->bo->bdev->val_seq++;
+
         list_for_each_entry(entry, list, head) {
                 struct ttm_buffer_object *bo = entry->bo;