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| author | shaoyunl <shaoyun.liu@amd.com> | 2021-02-16 20:50:42 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 06:10:38 +0300 |
| commit | e3c1b0712fdb039d9139ac0910be9a658c9cb65e (patch) | |
| tree | c36c46491fe9ace02e73059e3dbbab0fb1059fa5 /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | |
| parent | 655ce9cb13b5967558d81dd644868473ecfb5ee4 (diff) | |
| download | linux-e3c1b0712fdb039d9139ac0910be9a658c9cb65e.tar.xz | |
drm/amdgpu: Reset the devices in the XGMI hive duirng probe
In passthrough configuration, hypervisior will trigger the SBR(Secondary bus reset) to the devices
without sync to each other. This could cause device hang since for XGMI configuration, all the devices
within the hive need to be reset at a limit time slot. This serial of patches try to solve this issue
by co-operate with new SMU which will only do minimum house keeping to response the SBR request but don't
do the real reset job and leave it to driver. Driver need to do the whole sw init and minimum HW init
to bring up the SMU and trigger the reset(possibly BACO) on all the ASICs at the same time
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Acked-by: Andrey Grodzovsky andrey.grodzovsky@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index e57daa262150..7e248a4e2fa3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -150,6 +150,7 @@ struct amdgpu_xgmi { bool supported; struct ras_common_if *ras_if; bool connected_to_cpu; + bool pending_reset; }; struct amdgpu_gmc { |