[PATCH 2/2] drm/amdgpu: Queue KFD reset workitem in VF FED

[Luo, Zhigang]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Zhigang Luo <zhigang.luo at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Victor Skvortsov
Sent: Sunday, May 19, 2024 10:52 AM
To: amd-gfx at lists.freedesktop.org
Cc: Skvortsov, Victor <Victor.Skvortsov at amd.com>
Subject: [PATCH 2/2] drm/amdgpu: Queue KFD reset workitem in VF FED

The guest recovery sequence is buggy in Fatal Error when both FLR & KFD reset workitems are queued at the same time. In addition, FLR guest recovery sequence is out of order when PF/VF communication breaks due to a GPU fatal error

As a temporary work around, perform a KFD style reset (Initiate reset request from the guest) inside the pf2vf thread on FED.

Signed-off-by: Victor Skvortsov <victor.skvortsov at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index d98d619fba97..3d5f58e76f2d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -602,7 +602,7 @@ static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work)
                    amdgpu_sriov_runtime(adev)) {
                        amdgpu_ras_set_fed(adev, true);
                        if (amdgpu_reset_domain_schedule(adev->reset_domain,
-                                                         &adev->virt.flr_work))
+                                                         &adev->kfd.reset_work))
                                return;
                        else
                                dev_err(adev->dev, "Failed to queue work! at %s", __func__);
--
2.34.1