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drm/amdgpu: Initialize timestamp for some legacy SOCs 

[ Upstream commit 2e55bcf3d742a4946d862b86e39e75a95cc6f1c0 ]

Initialize the interrupt timestamp for some legacy SOCs
to fix the coverity issue "Uninitialized scalar variable"

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ma Jun 2024-04-22 10:07:51 +08:00 committed by Greg Kroah-Hartman
parent 855ae72c20
commit e55077badb
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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@ -438,6 +438,14 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
entry.ih = ih;
entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
/*
* timestamp is not supported on some legacy SOCs (cik, cz, iceland,
* si and tonga), so initialize timestamp and timestamp_src to 0
*/
entry.timestamp = 0;
entry.timestamp_src = 0;
amdgpu_ih_decode_iv(adev, &entry);
trace_amdgpu_iv(ih - &adev->irq.ih, &entry);