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drm/amdgpu: recover XGMI topology for SRIOV VF after reset

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For SRIOV VF, the XGMI topology was not recovered after reset. This
change added code to SRIOV VF reset function to update XGMI topology
for SRIOV VF after reset.

Signed-off-by: Zhigang Luo <zhigang.luo@amd.com>
Reviewed-by: Shaoyun Liu <shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhigang Luo 2021-12-06 16:21:03 -05:00 • committed by Alex Deucher
parent dd26e018aa
commit a5f67c939e
1 changed files with 14 additions and 3 deletions
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17
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -4285,6 +4285,7 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
bool from_hypervisor)
{
int r;
struct amdgpu_hive_info *hive = NULL;
amdgpu_amdkfd_pre_reset(adev);
@ -4313,9 +4314,19 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
if (r)
goto error;
amdgpu_irq_gpu_reset_resume_helper(adev);
r = amdgpu_ib_ring_tests(adev);
amdgpu_amdkfd_post_reset(adev);
hive = amdgpu_get_xgmi_hive(adev);
/* Update PSP FW topology after reset */
if (hive && adev->gmc.xgmi.num_physical_nodes > 1)
r = amdgpu_xgmi_update_topology(hive, adev);
if (hive)
amdgpu_put_xgmi_hive(hive);
if (!r) {
amdgpu_irq_gpu_reset_resume_helper(adev);
r = amdgpu_ib_ring_tests(adev);
amdgpu_amdkfd_post_reset(adev);
}
error:
if (!r && adev->virt.gim_feature & AMDGIM_FEATURE_GIM_FLR_VRAMLOST) {