From 5b0ec710dadd4569c1ed76dc175b94abb594b977 Mon Sep 17 00:00:00 2001 From: Dmytro Laktyushkin Date: Fri, 1 Jun 2018 15:01:32 -0400 Subject: [PATCH] drm/amd/display: fix pplib voltage request This fixes incorrect clock caching and by extension fixes the clock reporting. Signed-off-by: Dmytro Laktyushkin Reviewed-by: Eric Yang Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/dce/dce_clocks.c | 59 ++++++++++--------- 1 file changed, 32 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c index e62a21f55064..0a4ae0f49f99 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c @@ -570,37 +570,25 @@ static void dcn1_update_clocks(struct dccg *dccg, bool send_request_to_increase = false; bool send_request_to_lower = false; + if (new_clocks->phyclk_khz) + smu_req.display_count = 1; + else + smu_req.display_count = 0; + if (new_clocks->dispclk_khz > dccg->clks.dispclk_khz || new_clocks->phyclk_khz > dccg->clks.phyclk_khz || new_clocks->fclk_khz > dccg->clks.fclk_khz || new_clocks->dcfclk_khz > dccg->clks.dcfclk_khz) send_request_to_increase = true; - /* make sure dcf clk is before dpp clk to - * make sure we have enough voltage to run dpp clk - */ - if (send_request_to_increase) { - /*use dcfclk to request voltage*/ - clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DCFCLK; - clock_voltage_req.clocks_in_khz = dcn_find_dcfclk_suits_all(dc, new_clocks); - dm_pp_apply_clock_for_voltage_request(dccg->ctx, &clock_voltage_req); - } - - if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, dccg->clks.dispclk_khz)) { - dcn1_ramp_up_dispclk_with_dpp(dccg, new_clocks); - dccg->clks.dispclk_khz = new_clocks->dispclk_khz; - - send_request_to_lower = true; - } - if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, dccg->clks.phyclk_khz)) { - clock_voltage_req.clocks_in_khz = new_clocks->phyclk_khz; + dccg->clks.phyclk_khz = new_clocks->phyclk_khz; send_request_to_lower = true; } if (should_set_clock(safe_to_lower, new_clocks->fclk_khz, dccg->clks.fclk_khz)) { - dccg->clks.phyclk_khz = new_clocks->fclk_khz; + dccg->clks.fclk_khz = new_clocks->fclk_khz; clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_FCLK; clock_voltage_req.clocks_in_khz = new_clocks->fclk_khz; smu_req.hard_min_fclk_khz = new_clocks->fclk_khz; @@ -610,7 +598,7 @@ static void dcn1_update_clocks(struct dccg *dccg, } if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, dccg->clks.dcfclk_khz)) { - dccg->clks.phyclk_khz = new_clocks->dcfclk_khz; + dccg->clks.dcfclk_khz = new_clocks->dcfclk_khz; smu_req.hard_min_dcefclk_khz = new_clocks->dcfclk_khz; send_request_to_lower = true; @@ -620,22 +608,39 @@ static void dcn1_update_clocks(struct dccg *dccg, new_clocks->dcfclk_deep_sleep_khz, dccg->clks.dcfclk_deep_sleep_khz)) { dccg->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; smu_req.min_deep_sleep_dcefclk_mhz = new_clocks->dcfclk_deep_sleep_khz; + + send_request_to_lower = true; } - if (!send_request_to_increase && send_request_to_lower) { + /* make sure dcf clk is before dpp clk to + * make sure we have enough voltage to run dpp clk + */ + if (send_request_to_increase) { /*use dcfclk to request voltage*/ clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DCFCLK; clock_voltage_req.clocks_in_khz = dcn_find_dcfclk_suits_all(dc, new_clocks); dm_pp_apply_clock_for_voltage_request(dccg->ctx, &clock_voltage_req); + if (pp_smu->set_display_requirement) + pp_smu->set_display_requirement(&pp_smu->pp_smu, &smu_req); } - if (new_clocks->phyclk_khz) - smu_req.display_count = 1; - else - smu_req.display_count = 0; + /* dcn1 dppclk is tied to dispclk */ + if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, dccg->clks.dispclk_khz)) { + dcn1_ramp_up_dispclk_with_dpp(dccg, new_clocks); + dccg->clks.dispclk_khz = new_clocks->dispclk_khz; + + send_request_to_lower = true; + } + + if (!send_request_to_increase && send_request_to_lower) { + /*use dcfclk to request voltage*/ + clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DCFCLK; + clock_voltage_req.clocks_in_khz = dcn_find_dcfclk_suits_all(dc, new_clocks); + dm_pp_apply_clock_for_voltage_request(dccg->ctx, &clock_voltage_req); + if (pp_smu->set_display_requirement) + pp_smu->set_display_requirement(&pp_smu->pp_smu, &smu_req); + } - if (pp_smu->set_display_requirement) - pp_smu->set_display_requirement(&pp_smu->pp_smu, &smu_req); *smu_req_cur = smu_req; } -- 2.30.2