diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c index aadd07bc68c5..e64e45e4c833 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c @@ -387,7 +387,15 @@ static void dcn32_update_clocks_update_dentist( uint32_t temp_dispclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / temp_disp_divider; if (clk_mgr->smu_present) - dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(temp_dispclk_khz)); + /* + * SMU uses discrete dispclk presets. We applied + * the same formula to increase our dppclk_khz + * to the next matching discrete value. By + * contract, we should use the preset dispclk + * floored in Mhz to describe the intended clock. + */ + dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, + khz_to_mhz_floor(temp_dispclk_khz)); if (dc->debug.override_dispclk_programming) { REG_GET(DENTIST_DISPCLK_CNTL, @@ -426,7 +434,15 @@ static void dcn32_update_clocks_update_dentist( /* do requested DISPCLK updates*/ if (clk_mgr->smu_present) - dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(clk_mgr->base.clks.dispclk_khz)); + /* + * SMU uses discrete dispclk presets. We applied + * the same formula to increase our dppclk_khz + * to the next matching discrete value. By + * contract, we should use the preset dispclk + * floored in Mhz to describe the intended clock. + */ + dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, + khz_to_mhz_floor(clk_mgr->base.clks.dispclk_khz)); if (dc->debug.override_dispclk_programming) { REG_GET(DENTIST_DISPCLK_CNTL, @@ -493,6 +509,8 @@ static void dcn32_auto_dpm_test_log( } } + msleep(5); + mall_ss_size_bytes = context->bw_ctx.bw.dcn.mall_ss_size_bytes; dispclk_khz_reg = REG_READ(CLK1_CLK0_CURRENT_CNT); // DISPCLK @@ -734,7 +752,15 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, clk_mgr_base->clks.dppclk_khz = new_clocks->dppclk_khz; if (clk_mgr->smu_present && !dpp_clock_lowered) - dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); + /* + * SMU uses discrete dppclk presets. We applied + * the same formula to increase our dppclk_khz + * to the next matching discrete value. By + * contract, we should use the preset dppclk + * floored in Mhz to describe the intended clock. + */ + dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, + khz_to_mhz_floor(clk_mgr_base->clks.dppclk_khz)); update_dppclk = true; } @@ -765,7 +791,15 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, dcn32_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); dcn32_update_clocks_update_dentist(clk_mgr, context); if (clk_mgr->smu_present) - dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); + /* + * SMU uses discrete dppclk presets. We applied + * the same formula to increase our dppclk_khz + * to the next matching discrete value. By + * contract, we should use the preset dppclk + * floored in Mhz to describe the intended clock. + */ + dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, + khz_to_mhz_floor(clk_mgr_base->clks.dppclk_khz)); } else { /* if clock is being raised, increase refclk before lowering DTO */ if (update_dppclk || update_dispclk) |