diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c | 53 |
1 files changed, 39 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c index 55d09adbf0d9..f2114bc910bf 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c @@ -184,13 +184,6 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, pp_smu->set_display_count(&pp_smu->pp_smu, display_count); } - if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, clk_mgr_base->clks.phyclk_khz)) { - clk_mgr_base->clks.phyclk_khz = new_clocks->phyclk_khz; - if (pp_smu && pp_smu->set_voltage_by_freq) - pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_PHYCLK, clk_mgr_base->clks.phyclk_khz / 1000); - } - - if (dc->debug.force_min_dcfclk_mhz > 0) new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ? new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000); @@ -234,20 +227,26 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, dpp_clock_lowered = true; clk_mgr->base.clks.dppclk_khz = new_clocks->dppclk_khz; - if (pp_smu && pp_smu->set_voltage_by_freq) - pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_PIXELCLK, clk_mgr_base->clks.dppclk_khz / 1000); - update_dppclk = true; } if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) { clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz; - if (pp_smu && pp_smu->set_voltage_by_freq) - pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_DISPCLK, clk_mgr_base->clks.dispclk_khz / 1000); update_dispclk = true; } + if (update_dppclk || update_dispclk) { + new_clocks->disp_dpp_voltage_level_khz = new_clocks->dppclk_khz; + + if (update_dispclk) + new_clocks->disp_dpp_voltage_level_khz = new_clocks->dispclk_khz > new_clocks->dppclk_khz ? new_clocks->dispclk_khz : new_clocks->dppclk_khz; + + clk_mgr_base->clks.disp_dpp_voltage_level_khz = new_clocks->disp_dpp_voltage_level_khz; + if (pp_smu && pp_smu->set_voltage_by_freq) + pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_DISPCLK, clk_mgr_base->clks.disp_dpp_voltage_level_khz / 1000); + } + if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) { if (dpp_clock_lowered) { // if clock is being lowered, increase DTO before lowering refclk @@ -403,14 +402,14 @@ static bool dcn2_are_clock_states_equal(struct dc_clocks *a, return false; else if (a->dppclk_khz != b->dppclk_khz) return false; + else if (a->disp_dpp_voltage_level_khz != b->disp_dpp_voltage_level_khz) + return false; else if (a->dcfclk_khz != b->dcfclk_khz) return false; else if (a->socclk_khz != b->socclk_khz) return false; else if (a->dcfclk_deep_sleep_khz != b->dcfclk_deep_sleep_khz) return false; - else if (a->phyclk_khz != b->phyclk_khz) - return false; else if (a->dramclk_khz != b->dramclk_khz) return false; else if (a->p_state_change_support != b->p_state_change_support) @@ -419,6 +418,31 @@ static bool dcn2_are_clock_states_equal(struct dc_clocks *a, return true; } +/* Notify clk_mgr of a change in link rate, update phyclk frequency if necessary */ +static void dcn2_notify_link_rate_change(struct clk_mgr *clk_mgr_base, struct dc_link *link) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + unsigned int i, max_phyclk_req = 0; + struct pp_smu_funcs_nv *pp_smu = NULL; + + if (!clk_mgr->pp_smu || !clk_mgr->pp_smu->nv_funcs.set_voltage_by_freq) + return; + + pp_smu = &clk_mgr->pp_smu->nv_funcs; + + clk_mgr->cur_phyclk_req_table[link->link_index] = link->cur_link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ; + + for (i = 0; i < MAX_PIPES * 2; i++) { + if (clk_mgr->cur_phyclk_req_table[i] > max_phyclk_req) + max_phyclk_req = clk_mgr->cur_phyclk_req_table[i]; + } + + if (max_phyclk_req != clk_mgr_base->clks.phyclk_khz) { + clk_mgr_base->clks.phyclk_khz = max_phyclk_req; + pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_PHYCLK, clk_mgr_base->clks.phyclk_khz / 1000); + } +} + static struct clk_mgr_funcs dcn2_funcs = { .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, .update_clocks = dcn2_update_clocks, @@ -426,6 +450,7 @@ static struct clk_mgr_funcs dcn2_funcs = { .enable_pme_wa = dcn2_enable_pme_wa, .get_clock = dcn2_get_clock, .are_clock_states_equal = dcn2_are_clock_states_equal, + .notify_link_rate_change = dcn2_notify_link_rate_change, }; |