Am 30.10.2017 um 05:15 schrieb Monk Liu:
Signed-off-by: Monk Liu <[email protected]>
Acked-by: Christian König <[email protected]>
--- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 14 +++++++++++--- 1 file 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 c32d0b0..d31259e 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;
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