[PATCH] drm/amdgpu: Enable light SBR in XGMI+passthrough configuration

shaoyunl shaoyun.liu at amd.com
Thu Mar 11 17:15:48 UTC 2021


This is to fix the commit dda9bbb26c7 where it only enable the light SMU
on normal device init. This feature actually need to be enabled after ASIC
been reset as well.

Signed-off-by: shaoyunl <shaoyun.liu at amd.com>
Change-Id: Ie7ee02cd3ccdab3522aad9a02f681963e211ed44
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index cada3e77c7d5..fb775a9c0db1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2513,6 +2513,9 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
 	if (r)
 		DRM_ERROR("enable mgpu fan boost failed (%d).\n", r);
 
+	/* For XGMI + passthrough configuration , enable light SBR */
+	if (amdgpu_passthrough(adev) && adev->gmc.xgmi.num_physical_nodes > 1)
+		smu_set_light_sbr(&adev->smu, true);
 
 	if (adev->gmc.xgmi.num_physical_nodes > 1) {
 		mutex_lock(&mgpu_info.mutex);
@@ -3615,10 +3618,6 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	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));
-- 
2.17.1



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