From 3ae3a4ad831f98f6d0ab6b8fc0689be5c6f72406 Mon Sep 17 00:00:00 2001 From: shaoyunl Date: Wed, 10 Mar 2021 12:51:39 -0500 Subject: [PATCH] drm/amdgpu: Enable light SBR for SMU on passthrough and XGMI configuration SMU introduce the new interface to enable light Secondary Bus Reset mode, driver enable it on passthrough + XGMI configuration Signed-off-by: shaoyunl Reviewed-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index a7cd238654eb..056314ac361c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3615,6 +3615,10 @@ fence_driver_init: if (amdgpu_device_cache_pci_state(adev->pdev)) pci_restore_state(pdev); + /* Enable lightSBR on SMU in passthrough + xgmi configuration */ + if (amdgpu_passthrough(adev) && adev->gmc.xgmi.num_physical_nodes > 1) + smu_set_light_sbr(&adev->smu, true); + if (adev->gmc.xgmi.pending_reset) queue_delayed_work(system_wq, &mgpu_info.delayed_reset_work, msecs_to_jiffies(AMDGPU_RESUME_MS)); -- 2.25.1