From 086809c82c96116aed78f762e4f1d61a4e0210a7 Mon Sep 17 00:00:00 2001 From: Ellen Pan Date: Tue, 29 Apr 2025 17:18:44 -0400 Subject: drm/amdgpu: Implement unrecoverable error message handling for VFs This notification may arrive in VF mailbox while polling for response from another event. This patches covers the following scenarios: - If VF is already in RMA state, then do not attempt to contact the host. Host will ignore the VF after sending the notification. - If the notification is detected during polling, then set the RMA status, and return error to caller. - If the notification arrives by interrupt, then set the RMA status and queue a reset. This reset will fail and VF will stop runtime services. Reviewed-by: Shravan Kumar Gande Signed-off-by: Victor Skvortsov Signed-off-by: Ellen Pan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c') diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index f2a74aa76b56..48101a34e049 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -324,6 +324,7 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev, struct amdgpu_iv_entry *entry) { enum idh_event event = xgpu_ai_mailbox_peek_msg(adev); + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); switch (event) { case IDH_RAS_BAD_PAGES_NOTIFICATION: @@ -331,12 +332,22 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev, if (amdgpu_sriov_runtime(adev)) schedule_work(&adev->virt.bad_pages_work); break; + case IDH_UNRECOV_ERR_NOTIFICATION: + xgpu_ai_mailbox_send_ack(adev); + ras->is_rma = true; + dev_err(adev->dev, "VF is in an unrecoverable state. Runtime Services are halted.\n"); + if (amdgpu_sriov_runtime(adev)) + WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain, + &adev->virt.flr_work), + "Failed to queue work! at %s", + __func__); + break; case IDH_FLR_NOTIFICATION: if (amdgpu_sriov_runtime(adev)) WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain, - &adev->virt.flr_work), - "Failed to queue work! at %s", - __func__); + &adev->virt.flr_work), + "Failed to queue work! at %s", + __func__); break; case IDH_QUERY_ALIVE: xgpu_ai_mailbox_send_ack(adev); -- cgit v1.2.3