diff options
| author | Yintian Tao <yttao@amd.com> | 2020-02-28 14:24:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-25 08:25:49 +0100 |
| commit | e53a333014a3ddce64578ca7e5ef5dea195decd6 (patch) | |
| tree | 03e6d3f76a1d40f3f35db29ca4b23bd4c6bfb4c1 /scripts | |
| parent | b557b2f00682ac04df75514c9e9d3ea43e3af675 (diff) | |
drm/amdgpu: clean wptr on wb when gpu recovery
[ Upstream commit 2ab7e274b86739f4ceed5d94b6879f2d07b2802f ]
The TDR will be randomly failed due to compute ring
test failure. If the compute ring wptr & 0x7ff(ring_buf_mask)
is 0x100 then after map mqd the compute ring rptr will be
synced with 0x100. And the ring test packet size is also 0x100.
Then after invocation of amdgpu_ring_commit, the cp will not
really handle the packet on the ring buffer because rptr is equal to wptr.
Signed-off-by: Yintian Tao <yttao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions