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drm/amdgpu: Handle fault with same timestamp

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Remove not unique timestamp WARNING as same timestamp interrupt happens
on some chips,

Drain fault need to wait for the processed_timestamp to be truly greater
than the checkpoint or the ring to be empty to be sure no stale faults
are handled.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1818
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang
2021-12-08 14:55:15 -05:00
committed by Alex Deucher
parent e105b64a36
commit 0771c80591
2 changed files with 2 additions and 5 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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@@ -529,9 +529,6 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
if (!handled)
amdgpu_amdkfd_interrupt(adev, entry.iv_entry);
dev_WARN_ONCE(adev->dev, ih->processed_timestamp == entry.timestamp,
"IH timestamps are not unique");
if (amdgpu_ih_ts_after(ih->processed_timestamp, entry.timestamp))
ih->processed_timestamp = entry.timestamp;
}