Re: [PATCH v2] drm/syncobj: Fix sync syncobj issue

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I'll let Lucas comment. I've only looked a little at it.
From what I remember just enabling sw_signaling was enough to fix the issue.

-Lionel

On 12/07/2022 13:26, Christian König wrote:
Ping to the Intel guys here. Especially Lucas/Nirmoy/Lionel.

IIRC you stumbled over that problem as well, have you found any solution?

Regards,
Christian.

Am 07.07.22 um 12:29 schrieb jie1zhan:
enable signaling after flatten dma_fence_chains on transfer

Signed-off-by: jie1zhan <jesse.zhang@xxxxxxx>
---
  drivers/gpu/drm/drm_syncobj.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 7e48dcd1bee4..0d9d3577325f 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -920,6 +920,7 @@ static int drm_syncobj_transfer_to_timeline(struct drm_file *file_private,
      if (ret)
          goto err_free_fence;
  +    dma_fence_enable_sw_signaling(fence);
      chain = dma_fence_chain_alloc();
      if (!chain) {
          ret = -ENOMEM;





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