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| author | Jack Zhang <Jack.Zhang1@amd.com> | 2021-01-07 18:38:29 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-13 23:47:39 -0500 |
| commit | 3c2a01cb0fc567c18b802f25d619e31c196294ce (patch) | |
| tree | a9cc98b71846f93a0a9c8db52964fe21a2d8458c /drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | |
| parent | 4738154021b0c9f13eaf60e98e0265eacf963adc (diff) | |
| download | linux-3c2a01cb0fc567c18b802f25d619e31c196294ce.tar.gz | |
drm/amdgpu/sriov Stop data exchange for wholegpu reset
[Why]
When host trigger a whole gpu reset, guest will keep
waiting till host finish reset. But there's a work
queue in guest exchanging data between vf&pf which need
to access frame buffer. During whole gpu reset, frame
buffer is not accessable, and this causes the call trace.
[How]
After vf get reset notification from pf, stop data exchange.
Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c index dd5c1e6ce009..48e588d3c409 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c @@ -276,6 +276,7 @@ static void xgpu_nv_mailbox_flr_work(struct work_struct *work) if (!down_read_trylock(&adev->reset_sem)) return; + amdgpu_virt_fini_data_exchange(adev); atomic_set(&adev->in_gpu_reset, 1); do { |