diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/hwss')
3 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c index e68f21fd5f0f..560984533950 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c @@ -528,3 +528,75 @@ void dcn314_disable_link_output(struct dc_link *link, apply_symclk_on_tx_off_wa(link); } + +/** + * dcn314_dpp_pg_control - DPP power gate control. + * + * @hws: dce_hwseq reference. + * @dpp_inst: DPP instance reference. + * @power_on: true if we want to enable power gate, false otherwise. + * + * Enable or disable power gate in the specific DPP instance. + * If power gating is disabled, will force disable cursor in the DPP instance. + */ +void dcn314_dpp_pg_control( + struct dce_hwseq *hws, + unsigned int dpp_inst, + bool power_on) +{ + uint32_t power_gate = power_on ? 0 : 1; + uint32_t pwr_status = power_on ? 0 : 2; + + + if (hws->ctx->dc->debug.disable_dpp_power_gate) { + /* Workaround for DCN314 with disabled power gating */ + if (!power_on) { + + /* Force disable cursor if power gating is disabled */ + struct dpp *dpp = hws->ctx->dc->res_pool->dpps[dpp_inst]; + if (dpp && dpp->funcs->dpp_force_disable_cursor) + dpp->funcs->dpp_force_disable_cursor(dpp); + } + return; + } + if (REG(DOMAIN1_PG_CONFIG) == 0) + return; + + switch (dpp_inst) { + case 0: /* DPP0 */ + REG_UPDATE(DOMAIN1_PG_CONFIG, + DOMAIN1_POWER_GATE, power_gate); + + REG_WAIT(DOMAIN1_PG_STATUS, + DOMAIN1_PGFSM_PWR_STATUS, pwr_status, + 1, 1000); + break; + case 1: /* DPP1 */ + REG_UPDATE(DOMAIN3_PG_CONFIG, + DOMAIN3_POWER_GATE, power_gate); + + REG_WAIT(DOMAIN3_PG_STATUS, + DOMAIN3_PGFSM_PWR_STATUS, pwr_status, + 1, 1000); + break; + case 2: /* DPP2 */ + REG_UPDATE(DOMAIN5_PG_CONFIG, + DOMAIN5_POWER_GATE, power_gate); + + REG_WAIT(DOMAIN5_PG_STATUS, + DOMAIN5_PGFSM_PWR_STATUS, pwr_status, + 1, 1000); + break; + case 3: /* DPP3 */ + REG_UPDATE(DOMAIN7_PG_CONFIG, + DOMAIN7_POWER_GATE, power_gate); + + REG_WAIT(DOMAIN7_PG_STATUS, + DOMAIN7_PGFSM_PWR_STATUS, pwr_status, + 1, 1000); + break; + default: + BREAK_TO_DEBUGGER(); + break; + } +} diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.h index 2305ad282f21..6c072d0274ea 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.h @@ -47,4 +47,6 @@ void dcn314_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst, void dcn314_disable_link_output(struct dc_link *link, const struct link_resource *link_res, enum signal_type signal); +void dcn314_dpp_pg_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool power_on); + #endif /* __DC_HWSS_DCN314_H__ */ diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_init.c index f5112742edf9..9f454fa90e65 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_init.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_init.c @@ -141,6 +141,7 @@ static const struct hwseq_private_funcs dcn314_private_funcs = { .enable_power_gating_plane = dcn314_enable_power_gating_plane, .dpp_root_clock_control = dcn314_dpp_root_clock_control, .hubp_pg_control = dcn31_hubp_pg_control, + .dpp_pg_control = dcn314_dpp_pg_control, .program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree, .update_odm = dcn314_update_odm, .dsc_pg_control = dcn314_dsc_pg_control, |