diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c index eb0f5f9a973b..1ca30928025e 100644 --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c @@ -244,6 +244,21 @@ static void dce120_update_dchub( dh_data->dchub_info_valid = false; } +/** + * dce121_xgmi_enabled() - Check if xGMI is enabled + * @hws: DCE hardware sequencer object + * + * Return true if xGMI is enabled. False otherwise. + */ +bool dce121_xgmi_enabled(struct dce_hwseq *hws) +{ + uint32_t pf_max_region; + + REG_GET(MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION, &pf_max_region); + /* PF_MAX_REGION == 0 means xgmi is disabled */ + return !!pf_max_region; +} + void dce120_hw_sequencer_construct(struct dc *dc) { /* All registers used by dce11.2 match those in dce11 in offset and |