drm/nouveau: stop using ttm_bo_wait

TTM is just wrapping core DMA functionality here, remove the mid-layer.
No functional change.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221125102137.1801-5-christian.koenig@amd.com

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -922,6 +922,7 @@ static void nouveau_bo_move_ntfy(struct ttm_buffer_object *bo,
 	struct nouveau_mem *mem = new_reg ? nouveau_mem(new_reg) : NULL;
 	struct nouveau_bo *nvbo = nouveau_bo(bo);
 	struct nouveau_vma *vma;
+	long ret;
 
 	/* ttm can now (stupidly) pass the driver bos it didn't create... */
 	if (bo->destroy != nouveau_bo_del_ttm)
@@ -936,7 +937,10 @@ static void nouveau_bo_move_ntfy(struct ttm_buffer_object *bo,
 		}
 	} else {
 		list_for_each_entry(vma, &nvbo->vma_list, head) {
-			WARN_ON(ttm_bo_wait(bo, false, false));
+			ret = dma_resv_wait_timeout(bo->base.resv,
+						    DMA_RESV_USAGE_BOOKKEEP,
+						    false, 15 * HZ);
+			WARN_ON(ret <= 0);
 			nouveau_vma_unmap(vma);
 		}
 	}

drivers/gpu/drm/nouveau/nouveau_gem.c

@@ -645,7 +645,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
 				struct drm_nouveau_gem_pushbuf_reloc *reloc,
 				struct drm_nouveau_gem_pushbuf_bo *bo)
 {
-	int ret = 0;
+	long ret = 0;
 	unsigned i;
 
 	for (i = 0; i < req->nr_relocs; i++) {
@@ -703,9 +703,14 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
 				data |= r->vor;
 		}
 
-		ret = ttm_bo_wait(&nvbo->bo, false, false);
+		ret = dma_resv_wait_timeout(nvbo->bo.base.resv,
+					    DMA_RESV_USAGE_BOOKKEEP,
+					    false, 15 * HZ);
+		if (ret == 0)
+			ret = -EBUSY;
 		if (ret) {
-			NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret);
+			NV_PRINTK(err, cli, "reloc wait_idle failed: %ld\n",
+				  ret);
 			break;
 		}