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| author | Monk Liu <Monk.Liu@amd.com> | 2017-10-24 15:10:11 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-04 16:41:32 -0500 |
| commit | 34a4d2bf06b3ab92024b8e26d6049411369d1f1a (patch) | |
| tree | 9b0fecc4102e6b9b53798a2fdf87cc16c3461435 /drivers/gpu/drm | |
| parent | 77a3c96b1bcb5f69367df79f964367dd7f086dcc (diff) | |
drm/amdgpu:fix random missing of FLR NOTIFY
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index c32d0b0868e8..d31259e5bb45 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -282,9 +282,17 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev, /* see what event we get */ r = xgpu_ai_mailbox_rcv_msg(adev, IDH_FLR_NOTIFICATION); - /* only handle FLR_NOTIFY now */ - if (!r) - schedule_work(&adev->virt.flr_work); + /* sometimes the interrupt is delayed to inject to VM, so under such case + * the IDH_FLR_NOTIFICATION is overwritten by VF FLR from GIM side, thus + * above recieve message could be failed, we should schedule the flr_work + * anyway + */ + if (r) { + DRM_ERROR("FLR_NOTIFICATION is missed\n"); + xgpu_ai_mailbox_send_ack(adev); + } + + schedule_work(&adev->virt.flr_work); } return 0; |