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[Public]<br>
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Acked-by: Alex Deucher <alexander.deucher@amd.com><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Chengzhe Liu <ChengZhe.Liu@amd.com><br>
<b>Sent:</b> Thursday, July 22, 2021 1:49 AM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org><br>
<b>Cc:</b> Tuikov, Luben <Luben.Tuikov@amd.com>; Koenig, Christian <Christian.Koenig@amd.com>; Deucher, Alexander <Alexander.Deucher@amd.com>; Xiao, Jack <Jack.Xiao@amd.com>; Zhang, Hawking <Hawking.Zhang@amd.com>; Xu, Feifei <Feifei.Xu@amd.com>; Wang, Kevin(Yang)
<Kevin1.Wang@amd.com>; Liu, Cheng Zhe <ChengZhe.Liu@amd.com><br>
<b>Subject:</b> [PATCH] drm/amdgpu: Add msix restore for pass-through mode</font>
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<div class="PlainText">In pass-through mode, after mode 1 reset, msix enablement status would<br>
lost and never receives interrupt again. So, we should restore msix<br>
status after mode 1 reset.<br>
<br>
Signed-off-by: Chengzhe Liu <ChengZhe.Liu@amd.com><br>
---<br>
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 +-<br>
1 file changed, 1 insertion(+), 1 deletion(-)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
index 83af307e97cd..e1aa4a5e6a98 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
@@ -584,7 +584,7 @@ void amdgpu_irq_gpu_reset_resume_helper(struct amdgpu_device *adev)<br>
{<br>
int i, j, k;<br>
<br>
- if (amdgpu_sriov_vf(adev))<br>
+ if (amdgpu_sriov_vf(adev) || amdgpu_passthrough(adev))<br>
amdgpu_restore_msix(adev);<br>
<br>
for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {<br>
-- <br>
2.25.1<br>
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