drm/ttm: Don't shadow the operation context

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@amd.com>
Cc: Roger He <Hongbo.He@amd.com>
Cc: <dri-devel@lists.freedesktop.org>
Cc: <intel-gfx@lists.freedesktop.org>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Christian König <ckoenig.leichtzumerken@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230626091450.14757-3-thomas.hellstrom@linux.intel.com

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index bd5dae4..615d30c 100644 (file)
--- 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;