Am 24.04.24 um 12:03 schrieb Ma Jun:
Initialize the interrupt timestamp for some legacy SOCs
to fix the coverity issue "Uninitialized scalar variable"
Signed-off-by: Ma Jun <Jun.Ma2@xxxxxxx>
Suggested-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 7e6d09730e6d..665c63f55278 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -445,6 +445,14 @@ 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);
