diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c index 1861a147a7fa..f977f29907df 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c @@ -252,6 +252,7 @@ static void dcn3_update_clocks(struct clk_mgr *clk_mgr_base, bool update_dispclk = false; bool enter_display_off = false; bool dpp_clock_lowered = false; + bool update_pstate_unsupported_clk = false; struct dmcu *dmcu = clk_mgr_base->ctx->dc->res_pool->dmcu; bool force_reset = false; bool update_uclk = false; @@ -299,13 +300,28 @@ static void dcn3_update_clocks(struct clk_mgr *clk_mgr_base, clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; total_plane_count = clk_mgr_helper_get_active_plane_cnt(dc, context); p_state_change_support = new_clocks->p_state_change_support || (total_plane_count == 0); - if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support)) { + + // invalidate the current P-State forced min in certain dc_mode_softmax situations + if (dc->clk_mgr->dc_mode_softmax_enabled && safe_to_lower && !p_state_change_support) { + if ((new_clocks->dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000) != + (clk_mgr_base->clks.dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000)) + update_pstate_unsupported_clk = true; + } + + if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support) || + update_pstate_unsupported_clk) { clk_mgr_base->clks.p_state_change_support = p_state_change_support; /* to disable P-State switching, set UCLK min = max */ - if (!clk_mgr_base->clks.p_state_change_support) - dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, + if (!clk_mgr_base->clks.p_state_change_support) { + if (dc->clk_mgr->dc_mode_softmax_enabled && + new_clocks->dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000) + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, + dc->clk_mgr->bw_params->dc_mode_softmax_memclk); + else + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries - 1].memclk_mhz); + } } /* Always update saved value, even if new value not set due to P-State switching unsupported */ @@ -421,6 +437,24 @@ static void dcn3_set_hard_max_memclk(struct clk_mgr *clk_mgr_base) clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries - 1].memclk_mhz); } +static void dcn3_set_max_memclk(struct clk_mgr *clk_mgr_base, unsigned int memclk_mhz) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + if (!clk_mgr->smu_present) + return; + + dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, memclk_mhz); +} +static void dcn3_set_min_memclk(struct clk_mgr *clk_mgr_base, unsigned int memclk_mhz) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + if (!clk_mgr->smu_present) + return; + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, memclk_mhz); +} + /* Get current memclk states, update bounding box */ static void dcn3_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base) { @@ -436,6 +470,8 @@ static void dcn3_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base) &num_levels); clk_mgr_base->bw_params->clk_table.num_entries = num_levels ? num_levels : 1; + clk_mgr_base->bw_params->dc_mode_softmax_memclk = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_UCLK); + /* Refresh bounding box */ clk_mgr_base->ctx->dc->res_pool->funcs->update_bw_bounding_box( clk_mgr->base.ctx->dc, clk_mgr_base->bw_params); @@ -505,6 +541,8 @@ static struct clk_mgr_funcs dcn3_funcs = { .notify_wm_ranges = dcn3_notify_wm_ranges, .set_hard_min_memclk = dcn3_set_hard_min_memclk, .set_hard_max_memclk = dcn3_set_hard_max_memclk, + .set_max_memclk = dcn3_set_max_memclk, + .set_min_memclk = dcn3_set_min_memclk, .get_memclk_states_from_smu = dcn3_get_memclk_states_from_smu, .are_clock_states_equal = dcn3_are_clock_states_equal, .enable_pme_wa = dcn3_enable_pme_wa, |