From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值

---
 kernel/drivers/gpu/drm/nouveau/nouveau_bo.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c
index b57dcad..7633f56 100644
--- a/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -823,6 +823,15 @@
 		if (ret == 0) {
 			ret = nouveau_fence_new(chan, false, &fence);
 			if (ret == 0) {
+				/* TODO: figure out a better solution here
+				 *
+				 * wait on the fence here explicitly as going through
+				 * ttm_bo_move_accel_cleanup somehow doesn't seem to do it.
+				 *
+				 * Without this the operation can timeout and we'll fallback to a
+				 * software copy, which might take several minutes to finish.
+				 */
+				nouveau_fence_wait(fence, false, false);
 				ret = ttm_bo_move_accel_cleanup(bo,
 								&fence->base,
 								evict, false,

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