答复: [PATCH 1/2] drm/amdgpu: fix reboot failure issue for virtualization

[Liu, Monk]

Reviewed-by: Monk Liu <monk.liu at amd.com>

________________________________
发件人: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> 代表 Xiangliang Yu <Xiangliang.Yu at amd.com>
发送时间: 2017年1月18日 13:00:14
收件人: amd-gfx at lists.freedesktop.org
抄送: Yu, Xiangliang
主题: [PATCH 1/2] drm/amdgpu: fix reboot failure issue for virtualization

Reboot process will call HW fini functions of IP blocks. For virt,
need to send event three before hw fini and send event four after
hw fini.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2868128..4b82081 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1566,6 +1566,9 @@ int amdgpu_suspend(struct amdgpu_device *adev)
 {
         int i, r;

+       if (amdgpu_sriov_vf(adev))
+               amdgpu_virt_request_full_gpu(adev, false);
+
         /* ungate SMC block first */
         r = amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_SMC,
                                          AMD_CG_STATE_UNGATE);
@@ -1594,6 +1597,9 @@ int amdgpu_suspend(struct amdgpu_device *adev)
                 }
         }

+       if (amdgpu_sriov_vf(adev))
+               amdgpu_virt_release_full_gpu(adev, false);
+
         return 0;
 }

--
2.7.4

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