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| author |   shaoyunl <shaoyun.liu@amd.com> | 2021-03-10 12:03:37 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-03-23 23:25:43 -0400 |
| commit | 0e92159640f3708070d87dba79617dc7e7b63c1d (patch) | |
| tree | c9c02d3723a2b8ce97773494beb5934b18b5fbf8 /drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | |
| parent | drm/amdgpu: skip read eeprom for device that pending on XGMI reset (diff) | |
| download | linux-dev-0e92159640f3708070d87dba79617dc7e7b63c1d.tar.xz linux-dev-0e92159640f3708070d87dba79617dc7e7b63c1d.zip | |
drm/amd/pm: Add LightSBR SMU MSG support
This new MSG provide the interface for driver to enable/disable the Light Secondary Bus Reset
support from SMU. When enabled, SMU will only do minimum NBIO response to the SBR request and
leave the real HW reset to be handled by driver later. When disabled (default state),SMU will
pass the request to PSP for a HW reset
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>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 6a6fafc11588..1202b9e7d0f9 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2972,6 +2972,19 @@ int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state) return ret; } +int smu_set_light_sbr(struct smu_context *smu, bool enable) +{ + int ret = 0; + + mutex_lock(&smu->mutex); + if (smu->ppt_funcs->set_light_sbr) + ret = smu->ppt_funcs->set_light_sbr(smu, enable); + mutex_unlock(&smu->mutex); + + return ret; +} + + static const struct amd_pm_funcs swsmu_pm_funcs = { /* export for sysfs */ .set_fan_control_mode = smu_pp_set_fan_control_mode, |