From: Wesley Chalmers <Wesley.Chalmers@xxxxxxx> [WHY] This change was made because DTO programming was double-buffered, which is itself an issue. After deactivating the DTO double buffer, this change becomes unnecessary. This reverts commit 79a0feda4306a2e46872fffd1e5507b8e1785244 Signed-off-by: Wesley Chalmers <Wesley.Chalmers@xxxxxxx> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@xxxxxxx> Acked-by: Anthony Koo <Anthony.Koo@xxxxxxx> Acked-by: Leo Li <sunpeng.li@xxxxxxx> --- .../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c | 111 ++++++------------ drivers/gpu/drm/amd/display/dc/core/dc.c | 3 - .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 +- .../gpu/drm/amd/display/dc/dcn20/dcn20_dccg.c | 31 +---- .../gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h | 2 +- .../drm/amd/display/dc/dcn20/dcn20_hwseq.c | 3 +- .../drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +- .../gpu/drm/amd/display/dc/inc/core_types.h | 1 + .../amd/display/dc/inc/hw/clk_mgr_internal.h | 10 +- drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h | 3 +- 10 files changed, 48 insertions(+), 121 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 f1df32664414..559e16983f91 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 @@ -104,6 +104,7 @@ void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, { int i; + clk_mgr->dccg->ref_dppclk = clk_mgr->base.clks.dppclk_khz; for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { int dpp_inst, dppclk_khz; @@ -113,75 +114,28 @@ void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, dpp_inst = context->res_ctx.pipe_ctx[i].plane_res.dpp->inst; dppclk_khz = context->res_ctx.pipe_ctx[i].plane_res.bw.dppclk_khz; clk_mgr->dccg->funcs->update_dpp_dto( - clk_mgr->dccg, dpp_inst, dppclk_khz, false); + clk_mgr->dccg, dpp_inst, dppclk_khz); } } -static void update_global_dpp_clk(struct clk_mgr_internal *clk_mgr, unsigned int khz) +void dcn20_update_clocks_update_dentist(struct clk_mgr_internal *clk_mgr) { int dpp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR - * clk_mgr->dentist_vco_freq_khz / khz; - - uint32_t dppclk_wdivider = dentist_get_did_from_divider(dpp_divider); - - REG_UPDATE(DENTIST_DISPCLK_CNTL, - DENTIST_DPPCLK_WDIVIDER, dppclk_wdivider); - REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DPPCLK_CHG_DONE, 1, 5, 100); -} - -static void update_display_clk(struct clk_mgr_internal *clk_mgr, unsigned int khz) -{ + * clk_mgr->dentist_vco_freq_khz / clk_mgr->base.clks.dppclk_khz; int disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR - * clk_mgr->dentist_vco_freq_khz / khz; + * clk_mgr->dentist_vco_freq_khz / clk_mgr->base.clks.dispclk_khz; + uint32_t dppclk_wdivider = dentist_get_did_from_divider(dpp_divider); uint32_t dispclk_wdivider = dentist_get_did_from_divider(disp_divider); REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, dispclk_wdivider); +// REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, 1, 5, 100); + REG_UPDATE(DENTIST_DISPCLK_CNTL, + DENTIST_DPPCLK_WDIVIDER, dppclk_wdivider); + REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DPPCLK_CHG_DONE, 1, 5, 100); } -static void request_voltage_and_program_disp_clk(struct clk_mgr *clk_mgr_base, unsigned int khz) -{ - struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); - struct dc *dc = clk_mgr_base->ctx->dc; - struct pp_smu_funcs_nv *pp_smu = NULL; - bool going_up = clk_mgr->base.clks.dispclk_khz < khz; - - if (dc->res_pool->pp_smu) - pp_smu = &dc->res_pool->pp_smu->nv_funcs; - - clk_mgr->base.clks.dispclk_khz = khz; - - if (going_up && 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_display_clk(clk_mgr, khz); - - if (!going_up && 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); -} - -static void request_voltage_and_program_global_dpp_clk(struct clk_mgr *clk_mgr_base, unsigned int khz) -{ - struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); - struct dc *dc = clk_mgr_base->ctx->dc; - struct pp_smu_funcs_nv *pp_smu = NULL; - bool going_up = clk_mgr->base.clks.dppclk_khz < khz; - - if (dc->res_pool->pp_smu) - pp_smu = &dc->res_pool->pp_smu->nv_funcs; - - clk_mgr->base.clks.dppclk_khz = khz; - clk_mgr->dccg->ref_dppclk = khz; - - if (going_up && 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_global_dpp_clk(clk_mgr, khz); - - if (!going_up && 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); -} void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, struct dc_state *context, @@ -192,8 +146,10 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, struct dc *dc = clk_mgr_base->ctx->dc; struct pp_smu_funcs_nv *pp_smu = NULL; int display_count; + bool update_dppclk = false; bool update_dispclk = false; bool enter_display_off = false; + bool dpp_clock_lowered = false; struct dmcu *dmcu = clk_mgr_base->ctx->dc->res_pool->dmcu; bool force_reset = false; @@ -250,12 +206,10 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, if (should_update_pstate_support(safe_to_lower, new_clocks->p_state_change_support, clk_mgr_base->clks.p_state_change_support)) { clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; - clk_mgr_base->clks.p_state_change_support = new_clocks->p_state_change_support; if (pp_smu && pp_smu->set_pstate_handshake_support) pp_smu->set_pstate_handshake_support(&pp_smu->pp_smu, clk_mgr_base->clks.p_state_change_support); } - clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz)) { clk_mgr_base->clks.dramclk_khz = new_clocks->dramclk_khz; @@ -263,28 +217,35 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, pp_smu->set_hard_min_uclk_by_freq(&pp_smu->pp_smu, clk_mgr_base->clks.dramclk_khz / 1000); } - if (dc->config.forced_clocks == false) { - // First update display clock - if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) - request_voltage_and_program_disp_clk(clk_mgr_base, new_clocks->dispclk_khz); + if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) { + if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz) + dpp_clock_lowered = true; + clk_mgr->base.clks.dppclk_khz = new_clocks->dppclk_khz; - // Updating DPP clock requires some more logic - if (!safe_to_lower) { - // For pre-programming, we need to make sure any DPP clock that will go up has to go up + 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); - // First raise the global reference if needed - if (new_clocks->dppclk_khz > clk_mgr_base->clks.dppclk_khz) - request_voltage_and_program_global_dpp_clk(clk_mgr_base, new_clocks->dppclk_khz); + update_dppclk = true; + } - // Then raise any dividers that need raising - dcn20_update_clocks_update_dpp_dto(clk_mgr, context); - } else { - // For post-programming, we can lower ref clk if needed, and unconditionally set all the DTOs + 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); - if (new_clocks->dppclk_khz < clk_mgr_base->clks.dppclk_khz) - request_voltage_and_program_global_dpp_clk(clk_mgr_base, new_clocks->dppclk_khz); + update_dispclk = true; + } + 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 dcn20_update_clocks_update_dpp_dto(clk_mgr, context); - + dcn20_update_clocks_update_dentist(clk_mgr); + } else { + // if clock is being raised, increase refclk before lowering DTO + if (update_dppclk || update_dispclk) + dcn20_update_clocks_update_dentist(clk_mgr); + if (update_dppclk) + dcn20_update_clocks_update_dpp_dto(clk_mgr, context); } } if (update_dispclk && diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 0d7ef89b17a4..8ec80151636d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1643,9 +1643,6 @@ enum surface_update_type dc_check_update_surfaces_for_stream( updates[i].surface->update_flags.raw = 0xFFFFFFFF; } - if (type == UPDATE_TYPE_FAST && memcmp(&dc->current_state->bw_ctx.bw.dcn.clk, &dc->clk_mgr->clks, offsetof(struct dc_clocks, prev_p_state_change_support)) != 0) - dc->optimized_required = true; - return type; } diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 5b9dd169a16f..5d3b4858c6eb 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -2303,8 +2303,7 @@ void update_dchubp_dpp( dc->res_pool->dccg->funcs->update_dpp_dto( dc->res_pool->dccg, dpp->inst, - pipe_ctx->plane_res.bw.dppclk_khz, - false); + pipe_ctx->plane_res.bw.dppclk_khz); else dc->clk_mgr->clks.dppclk_khz = should_divided_by_2 ? dc->clk_mgr->clks.dispclk_khz / 2 : diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.c index 313d3793005e..ece8b7452397 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.c @@ -42,16 +42,12 @@ #define DC_LOGGER \ dccg->ctx->logger -void dccg2_update_dpp_dto(struct dccg *dccg, - int dpp_inst, - int req_dppclk, - bool reduce_divider_only) +void dccg2_update_dpp_dto(struct dccg *dccg, int dpp_inst, int req_dppclk) { struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); if (dccg->ref_dppclk && req_dppclk) { int ref_dppclk = dccg->ref_dppclk; - int current_phase, current_modulo; ASSERT(req_dppclk <= ref_dppclk); /* need to clamp to 8 bits */ @@ -63,28 +59,9 @@ void dccg2_update_dpp_dto(struct dccg *dccg, if (req_dppclk > ref_dppclk) req_dppclk = ref_dppclk; } - - REG_GET_2(DPPCLK_DTO_PARAM[dpp_inst], - DPPCLK0_DTO_PHASE, ¤t_phase, - DPPCLK0_DTO_MODULO, ¤t_modulo); - - if (reduce_divider_only) { - // requested phase/modulo greater than current - if (req_dppclk * current_modulo >= current_phase * ref_dppclk) { - REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0, - DPPCLK0_DTO_PHASE, req_dppclk, - DPPCLK0_DTO_MODULO, ref_dppclk); - } else { - REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0, - DPPCLK0_DTO_PHASE, current_phase, - DPPCLK0_DTO_MODULO, current_modulo); - } - } else { - REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0, - DPPCLK0_DTO_PHASE, req_dppclk, - DPPCLK0_DTO_MODULO, ref_dppclk); - } - + REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0, + DPPCLK0_DTO_PHASE, req_dppclk, + DPPCLK0_DTO_MODULO, ref_dppclk); REG_UPDATE(DPPCLK_DTO_CTRL, DPPCLK_DTO_ENABLE[dpp_inst], 1); } else { diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h index 74a074a873cd..2205cb0204e7 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h @@ -97,7 +97,7 @@ struct dcn_dccg { const struct dccg_mask *dccg_mask; }; -void dccg2_update_dpp_dto(struct dccg *dccg, int dpp_inst, int req_dppclk, bool raise_divider_only); +void dccg2_update_dpp_dto(struct dccg *dccg, int dpp_inst, int req_dppclk); void dccg2_get_dccg_ref_freq(struct dccg *dccg, unsigned int xtalin_freq_inKhz, diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index 4bb5ad19c4cf..84aae9c05781 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1208,8 +1208,7 @@ static void dcn20_update_dchubp_dpp( dc->res_pool->dccg->funcs->update_dpp_dto( dc->res_pool->dccg, dpp->inst, - pipe_ctx->plane_res.bw.dppclk_khz, - false); + pipe_ctx->plane_res.bw.dppclk_khz); } /* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 49a147661cd4..d1901ab5fb8c 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -2622,7 +2622,7 @@ void dcn20_calculate_dlg_params( context->bw_ctx.bw.dcn.clk.socclk_khz = context->bw_ctx.dml.vba.SOCCLK * 1000; context->bw_ctx.bw.dcn.clk.dramclk_khz = context->bw_ctx.dml.vba.DRAMSpeed * 1000 / 16; context->bw_ctx.bw.dcn.clk.dcfclk_deep_sleep_khz = context->bw_ctx.dml.vba.DCFCLKDeepSleep * 1000; - context->bw_ctx.bw.dcn.clk.fclk_khz = 0; + context->bw_ctx.bw.dcn.clk.fclk_khz = context->bw_ctx.dml.vba.FabricClock * 1000; context->bw_ctx.bw.dcn.clk.p_state_change_support = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] != dm_dram_clock_change_unsupported; diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index f189307750ab..daf8d5d9c3f1 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -231,6 +231,7 @@ struct resource_pool { struct dcn_fe_bandwidth { int dppclk_khz; + }; struct stream_resource { diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h index 7dd46eb96d67..213046de1675 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h @@ -281,14 +281,8 @@ static inline bool should_set_clock(bool safe_to_lower, int calc_clk, int cur_cl static inline bool should_update_pstate_support(bool safe_to_lower, bool calc_support, bool cur_support) { - if (cur_support != calc_support) { - if (calc_support == true && safe_to_lower) - return true; - else if (calc_support == false && !safe_to_lower) - return true; - } - - return false; + // Whenever we are transitioning pstate support, we always want to notify prior to committing state + return (calc_support != cur_support) ? !safe_to_lower : false; } int clk_mgr_helper_get_active_display_cnt( diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h index d8e744f366e5..05ee5295d2c1 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h @@ -38,8 +38,7 @@ struct dccg { struct dccg_funcs { void (*update_dpp_dto)(struct dccg *dccg, int dpp_inst, - int req_dppclk, - bool reduce_divider_only); + int req_dppclk); void (*get_dccg_ref_freq)(struct dccg *dccg, unsigned int xtalin_freq_inKhz, unsigned int *dccg_ref_freq_inKhz); -- 2.22.0 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx