ttm_bo_swapout() shadows the ttm operation context which may cause
major confusion in driver callbacks when swapping out !TTM_PL_SYSTEM
memory. Fix this by reusing the operation context argument to
ttm_bo_swapout().
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: Roger He <Hongbo.He@xxxxxxx>
Cc: <dri-devel@xxxxxxxxxxxxxxxxxxxxx>
Cc: <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v4.16+
Fixes: dc947770cf34 ("drm/ttm: enable swapout for reserved BOs during allocation")
Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Acked-by: Matthew Brost <matthew.brost@xxxxxxxxx>
---
drivers/gpu/drm/ttm/ttm_bo.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index bd5dae4d1624..615d30c4262d 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1154,7 +1154,6 @@ int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx,
* Move to system cached
*/
if (bo->resource->mem_type != TTM_PL_SYSTEM) {
- struct ttm_operation_ctx ctx = { false, false };
struct ttm_resource *evict_mem;
struct ttm_place hop;
@@ -1164,7 +1163,7 @@ int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx,
if (unlikely(ret))
goto out;
- ret = ttm_bo_handle_move_mem(bo, evict_mem, true, &ctx, &hop);
+ ret = ttm_bo_handle_move_mem(bo, evict_mem, true, ctx, &hop);
if (unlikely(ret != 0)) {
WARN(ret == -EMULTIHOP, "Unexpected multihop in swaput - likely driver bug.\n");
goto out;
--
2.40.1
