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authorArvind Yadav <Arvind.Yadav@amd.com>2022-09-14 22:13:17 +0530
committerChristian König <christian.koenig@amd.com>2022-09-16 15:53:25 +0200
commitc85d00d4fd8b98ea4d16817f397a4de5e177afd6 (patch)
tree2fe004e2d0ed732ae93305ab7f3612951f0bd21f /drivers/dma-buf/dma-fence.c
parent6ad9aa476ce23be45de9dcb03edcdbfdf6117c25 (diff)
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>
Diffstat (limited to 'drivers/dma-buf/dma-fence.c')
-rw-r--r--drivers/dma-buf/dma-fence.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 64c99739ad23..645c158b7e01 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -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;