mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

dma-buf: set signaling bit for the stub fence 

Here's setting software signaling bit for the stub fence
which is always signaled. If this fence signaling bit is
not set then the AMD GPU scheduler will cause a GPU reset
due to a GPU scheduler cleanup activity timeout.

Signed-off-by: Arvind Yadav <Arvind.Yadav@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220914164321.2156-3-Arvind.Yadav@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Arvind Yadav 2022-09-14 22:13:17 +05:30 committed by Christian König
parent 6ad9aa476c
commit c85d00d4fd
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/dma-buf/dma-fence.c
View File

@ -136,6 +136,10 @@ struct dma_fence *dma_fence_get_stub(void)
&dma_fence_stub_ops,
&dma_fence_stub_lock,
0, 0);
set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
&dma_fence_stub.flags);
dma_fence_signal_locked(&dma_fence_stub);
}
spin_unlock(&dma_fence_stub_lock);
@ -161,6 +165,10 @@ struct dma_fence *dma_fence_allocate_private_stub(void)
&dma_fence_stub_ops,
&dma_fence_stub_lock,
0, 0);
set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
&dma_fence_stub.flags);
dma_fence_signal(fence);
return fence;