From ac6517d2f889d287db9fc12ddafefd8b9be2ae21 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 25 Jan 2022 15:04:54 -0500
Subject: drm/amdgpu: only check for _PR3 on dGPUs
Git-commit: 85ac2021fe3ace59cc0afd6edf005abad35625b0
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
We don't support runtime pm on APUs. They support more
dynamic power savings using clock and powergating.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ddc5cd61af58..1b313a95c7e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2159,8 +2159,10 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
!pci_is_thunderbolt_attached(to_pci_dev(dev->dev)))
adev->flags |= AMD_IS_PX;
- parent = pci_upstream_bridge(adev->pdev);
- adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
+ if (!(adev->flags & AMD_IS_APU)) {
+ parent = pci_upstream_bridge(adev->pdev);
+ adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
+ }
amdgpu_amdkfd_device_probe(adev);
--
2.38.1