From 94a17fe3bea54f0a39988449d88ad31c05e72ca1 Mon Sep 17 00:00:00 2001
From: Monk Liu <Monk.Liu@amd.com>
Date: Mon, 29 Jun 2020 17:32:16 +0800
Subject: drm/amdgpu: make IB test synchronize with init for SRIOV(v2)
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Git-commit: 2c738637bac1aa62fd0066e201d4acd7a7155bfb
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
issue:
originally we kickoff IB test asynchronously with driver's
init, thus
the IB test may still running when the driver loading
done (modprobe amdgpu done).
if we shutdown VM immediately after amdgpu driver
loaded then GPU may
hang because the IB test is still running
fix:
flush the delayed_init routine at the bottom of device_init
to avoid driver loading done prior to the IB test completes
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>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 457f5d2cb4cb..7a4e9656d74f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3295,6 +3295,9 @@ int amdgpu_device_init(struct amdgpu_device *adev,
queue_delayed_work(system_wq, &adev->delayed_init_work,
msecs_to_jiffies(AMDGPU_RESUME_MS));
+ if (amdgpu_sriov_vf(adev))
+ flush_delayed_work(&adev->delayed_init_work);
+
r = sysfs_create_files(&adev->dev->kobj, amdgpu_dev_attributes);
if (r) {
dev_err(adev->dev, "Could not create amdgpu device attr\n");
--
2.29.2