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

From: Das, Nirmoy
Date: Wed Jul 13 2022 - 04:42:56 EST

Hi Christian,

On 7/12/2022 12:26 PM, 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?

I might be wrong but  I think you are talking about igt@syncobj_timeline@transfer-timeline-point testcase which seems to be

green in CI now

Lucas found out that the issues got fixed after ec8d985ff26f ("drm: use dma_fence_unwrap_merge() in drm_syncobj")




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;