From d7274ec723cd0c2359ef75f84deca462a60c5025 Mon Sep 17 00:00:00 2001
From: Bokun Zhang <Bokun.Zhang@amd.com>
Date: Wed, 28 Sep 2022 00:30:04 +0800
Subject: drm/amdgpu: Add amdgpu suspend-resume code path under SRIOV
- Under SRIOV, we need to send REQ_GPU_FINI to the hypervisor
during the suspend time. Furthermore, we cannot request a
mode 1 reset under SRIOV as VF. Therefore, we will skip it
as it is called in suspend_noirq() function.
- In the resume code path, we need to send REQ_GPU_INIT to the
hypervisor and also resume PSP IP block under SRIOV.
Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 3da27436922c..b14800ac179e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -1053,6 +1053,10 @@ bool amdgpu_acpi_should_gpu_reset(struct amdgpu_device *adev)
{
if (adev->flags & AMD_IS_APU)
return false;
+
+ if (amdgpu_sriov_vf(adev))
+ return false;
+
return pm_suspend_target_state != PM_SUSPEND_TO_IDLE;
}
--
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