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authorshaoyunl <shaoyun.liu@amd.com>2021-03-10 12:51:39 -0500
committerAlex Deucher <alexander.deucher@amd.com>2021-03-23 23:25:46 -0400
commit3ae3a4ad831f98f6d0ab6b8fc0689be5c6f72406 (patch)
tree5ef16a699c9f23dc61c2fe20977ce68163a7a171
parent0e92159640f3708070d87dba79617dc7e7b63c1d (diff)
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 <shaoyun.liu@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c4
1 files changed, 4 insertions, 0 deletions
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));