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From: Trigger Huang <Trigger.Huang-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Trigger Huang <Trigger.Huang-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH] drm/amdgpu: skip ring soft reset on SR-IOV VF
Date: Wed, 14 Nov 2018 16:23:24 +0800	[thread overview]
Message-ID: <1542183804-3021-1-git-send-email-Trigger.Huang@amd.com> (raw)

When TDR happened on SR-IOV VF, the host Hypervisor may has already
done the VF FLR, then, the re-initialization flow in KMD is a must.
The same logic is in amdgpu_device_ip_check_soft_reset, too

Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 5b75bdc..14bd67a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -397,6 +397,9 @@ bool amdgpu_ring_soft_recovery(struct amdgpu_ring *ring, unsigned int vmid,
 {
 	ktime_t deadline = ktime_add_us(ktime_get(), 10000);
 
+	if (amdgpu_sriov_vf(ring->adev))
+		return false;
+
 	if (!ring->funcs->soft_recovery)
 		return false;
 
-- 
2.7.4

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             reply	other threads:[~2018-11-14  8:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-14  8:23 Trigger Huang [this message]
     [not found] ` <1542183804-3021-1-git-send-email-Trigger.Huang-5C7GfCeVMHo@public.gmane.org>
2018-11-14 10:24   ` [PATCH] drm/amdgpu: skip ring soft reset on SR-IOV VF Christian König

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