This file was not compiled or included anywhere and not modified for years. And it has duplicate function definitions of many functions that are defined in other files.
That leads to a lot of confusion (for both developers and for code editors), eg. when searching for a definition of a function it can end up on one of the functions in this file instead of the real implementations. I suspect that it was forgotten that this should be deleted after the various clock manager functions were split into hardware generation specific files. Delete it now. Signed-off-by: Timur Kristóf <[email protected]> --- .../gpu/drm/amd/display/dc/dce/dce_clk_mgr.c | 967 ------------------ 1 file changed, 967 deletions(-) delete mode 100644 drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c deleted file mode 100644 index e7acd6eec1fd..000000000000 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c +++ /dev/null @@ -1,967 +0,0 @@ -/* - * Copyright 2012-16 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#include <linux/slab.h> - -#include "dce_clk_mgr.h" - -#include "reg_helper.h" -#include "dmcu.h" -#include "core_types.h" -#include "dal_asic_id.h" - -#define TO_DCE_CLK_MGR(clocks)\ - container_of(clocks, struct dce_clk_mgr, base) - -#define REG(reg) \ - (clk_mgr_dce->regs->reg) - -#undef FN -#define FN(reg_name, field_name) \ - clk_mgr_dce->clk_mgr_shift->field_name, clk_mgr_dce->clk_mgr_mask->field_name - -#define CTX \ - clk_mgr_dce->base.ctx -#define DC_LOGGER \ - clk_mgr->ctx->logger - -/* Max clock values for each state indexed by "enum clocks_state": */ -static const struct state_dependent_clocks dce80_max_clks_by_state[] = { -/* ClocksStateInvalid - should not be used */ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/* ClocksStateUltraLow - not expected to be used for DCE 8.0 */ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/* ClocksStateLow */ -{ .display_clk_khz = 352000, .pixel_clk_khz = 330000}, -/* ClocksStateNominal */ -{ .display_clk_khz = 600000, .pixel_clk_khz = 400000 }, -/* ClocksStatePerformance */ -{ .display_clk_khz = 600000, .pixel_clk_khz = 400000 } }; - -static const struct state_dependent_clocks dce110_max_clks_by_state[] = { -/*ClocksStateInvalid - should not be used*/ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/*ClocksStateUltraLow - currently by HW design team not supposed to be used*/ -{ .display_clk_khz = 352000, .pixel_clk_khz = 330000 }, -/*ClocksStateLow*/ -{ .display_clk_khz = 352000, .pixel_clk_khz = 330000 }, -/*ClocksStateNominal*/ -{ .display_clk_khz = 467000, .pixel_clk_khz = 400000 }, -/*ClocksStatePerformance*/ -{ .display_clk_khz = 643000, .pixel_clk_khz = 400000 } }; - -static const struct state_dependent_clocks dce112_max_clks_by_state[] = { -/*ClocksStateInvalid - should not be used*/ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/*ClocksStateUltraLow - currently by HW design team not supposed to be used*/ -{ .display_clk_khz = 389189, .pixel_clk_khz = 346672 }, -/*ClocksStateLow*/ -{ .display_clk_khz = 459000, .pixel_clk_khz = 400000 }, -/*ClocksStateNominal*/ -{ .display_clk_khz = 667000, .pixel_clk_khz = 600000 }, -/*ClocksStatePerformance*/ -{ .display_clk_khz = 1132000, .pixel_clk_khz = 600000 } }; - -static const struct state_dependent_clocks dce120_max_clks_by_state[] = { -/*ClocksStateInvalid - should not be used*/ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/*ClocksStateUltraLow - currently by HW design team not supposed to be used*/ -{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, -/*ClocksStateLow*/ -{ .display_clk_khz = 460000, .pixel_clk_khz = 400000 }, -/*ClocksStateNominal*/ -{ .display_clk_khz = 670000, .pixel_clk_khz = 600000 }, -/*ClocksStatePerformance*/ -{ .display_clk_khz = 1133000, .pixel_clk_khz = 600000 } }; - -int dentist_get_divider_from_did(int did) -{ - if (did < DENTIST_BASE_DID_1) - did = DENTIST_BASE_DID_1; - if (did > DENTIST_MAX_DID) - did = DENTIST_MAX_DID; - - if (did < DENTIST_BASE_DID_2) { - return DENTIST_DIVIDER_RANGE_1_START + DENTIST_DIVIDER_RANGE_1_STEP - * (did - DENTIST_BASE_DID_1); - } else if (did < DENTIST_BASE_DID_3) { - return DENTIST_DIVIDER_RANGE_2_START + DENTIST_DIVIDER_RANGE_2_STEP - * (did - DENTIST_BASE_DID_2); - } else if (did < DENTIST_BASE_DID_4) { - return DENTIST_DIVIDER_RANGE_3_START + DENTIST_DIVIDER_RANGE_3_STEP - * (did - DENTIST_BASE_DID_3); - } else { - return DENTIST_DIVIDER_RANGE_4_START + DENTIST_DIVIDER_RANGE_4_STEP - * (did - DENTIST_BASE_DID_4); - } -} - -/* SW will adjust DP REF Clock average value for all purposes - * (DP DTO / DP Audio DTO and DP GTC) - if clock is spread for all cases: - -if SS enabled on DP Ref clock and HW de-spreading enabled with SW - calculations for DS_INCR/DS_MODULO (this is planned to be default case) - -if SS enabled on DP Ref clock and HW de-spreading enabled with HW - calculations (not planned to be used, but average clock should still - be valid) - -if SS enabled on DP Ref clock and HW de-spreading disabled - (should not be case with CIK) then SW should program all rates - generated according to average value (case as with previous ASICs) - */ -static int clk_mgr_adjust_dp_ref_freq_for_ss(struct dce_clk_mgr *clk_mgr_dce, int dp_ref_clk_khz) -{ - if (clk_mgr_dce->ss_on_dprefclk && clk_mgr_dce->dprefclk_ss_divider != 0) { - struct fixed31_32 ss_percentage = dc_fixpt_div_int( - dc_fixpt_from_fraction(clk_mgr_dce->dprefclk_ss_percentage, - clk_mgr_dce->dprefclk_ss_divider), 200); - struct fixed31_32 adj_dp_ref_clk_khz; - - ss_percentage = dc_fixpt_sub(dc_fixpt_one, ss_percentage); - adj_dp_ref_clk_khz = dc_fixpt_mul_int(ss_percentage, dp_ref_clk_khz); - dp_ref_clk_khz = dc_fixpt_floor(adj_dp_ref_clk_khz); - } - return dp_ref_clk_khz; -} - -static int dce_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - int dprefclk_wdivider; - int dprefclk_src_sel; - int dp_ref_clk_khz = 600000; - int target_div; - - /* ASSERT DP Reference Clock source is from DFS*/ - REG_GET(DPREFCLK_CNTL, DPREFCLK_SRC_SEL, &dprefclk_src_sel); - ASSERT(dprefclk_src_sel == 0); - - /* Read the mmDENTIST_DISPCLK_CNTL to get the currently - * programmed DID DENTIST_DPREFCLK_WDIVIDER*/ - REG_GET(DENTIST_DISPCLK_CNTL, DENTIST_DPREFCLK_WDIVIDER, &dprefclk_wdivider); - - /* Convert DENTIST_DPREFCLK_WDIVIDERto actual divider*/ - target_div = dentist_get_divider_from_did(dprefclk_wdivider); - - /* Calculate the current DFS clock, in kHz.*/ - dp_ref_clk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR - * clk_mgr_dce->dentist_vco_freq_khz) / target_div; - - return clk_mgr_adjust_dp_ref_freq_for_ss(clk_mgr_dce, dp_ref_clk_khz); -} - -int dce12_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - - return clk_mgr_adjust_dp_ref_freq_for_ss(clk_mgr_dce, clk_mgr_dce->dprefclk_khz); -} - -/* unit: in_khz before mode set, get pixel clock from context. ASIC register - * may not be programmed yet - */ -static uint32_t get_max_pixel_clock_for_all_paths(struct dc_state *context) -{ - uint32_t max_pix_clk = 0; - int i; - - for (i = 0; i < MAX_PIPES; i++) { - struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; - - if (pipe_ctx->stream == NULL) - continue; - - /* do not check under lay */ - if (pipe_ctx->top_pipe) - continue; - - if (pipe_ctx->stream_res.pix_clk_params.requested_pix_clk_100hz / 10 > max_pix_clk) - max_pix_clk = pipe_ctx->stream_res.pix_clk_params.requested_pix_clk_100hz / 10; - - /* raise clock state for HBR3/2 if required. Confirmed with HW DCE/DPCS - * logic for HBR3 still needs Nominal (0.8V) on VDDC rail - */ - if (dc_is_dp_signal(pipe_ctx->stream->signal) && - pipe_ctx->stream_res.pix_clk_params.requested_sym_clk > max_pix_clk) - max_pix_clk = pipe_ctx->stream_res.pix_clk_params.requested_sym_clk; - } - - return max_pix_clk; -} - -static enum dm_pp_clocks_state dce_get_required_clocks_state( - struct clk_mgr *clk_mgr, - struct dc_state *context) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - int i; - enum dm_pp_clocks_state low_req_clk; - int max_pix_clk = get_max_pixel_clock_for_all_paths(context); - - /* Iterate from highest supported to lowest valid state, and update - * lowest RequiredState with the lowest state that satisfies - * all required clocks - */ - for (i = clk_mgr_dce->max_clks_state; i >= DM_PP_CLOCKS_STATE_ULTRA_LOW; i--) - if (context->bw_ctx.bw.dce.dispclk_khz > - clk_mgr_dce->max_clks_by_state[i].display_clk_khz - || max_pix_clk > - clk_mgr_dce->max_clks_by_state[i].pixel_clk_khz) - break; - - low_req_clk = i + 1; - if (low_req_clk > clk_mgr_dce->max_clks_state) { - /* set max clock state for high phyclock, invalid on exceeding display clock */ - if (clk_mgr_dce->max_clks_by_state[clk_mgr_dce->max_clks_state].display_clk_khz - < context->bw_ctx.bw.dce.dispclk_khz) - low_req_clk = DM_PP_CLOCKS_STATE_INVALID; - else - low_req_clk = clk_mgr_dce->max_clks_state; - } - - return low_req_clk; -} - -static int dce_set_clock( - struct clk_mgr *clk_mgr, - int requested_clk_khz) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct bp_pixel_clock_parameters pxl_clk_params = { 0 }; - struct dc_bios *bp = clk_mgr->ctx->dc_bios; - int actual_clock = requested_clk_khz; - struct dmcu *dmcu = clk_mgr_dce->base.ctx->dc->res_pool->dmcu; - - /* Make sure requested clock isn't lower than minimum threshold*/ - if (requested_clk_khz > 0) - requested_clk_khz = max(requested_clk_khz, - clk_mgr_dce->dentist_vco_freq_khz / 64); - - /* Prepare to program display clock*/ - pxl_clk_params.target_pixel_clock_100hz = requested_clk_khz * 10; - pxl_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; - - if (clk_mgr_dce->dfs_bypass_active) - pxl_clk_params.flags.SET_DISPCLK_DFS_BYPASS = true; - - bp->funcs->program_display_engine_pll(bp, &pxl_clk_params); - - if (clk_mgr_dce->dfs_bypass_active) { - /* Cache the fixed display clock*/ - clk_mgr_dce->dfs_bypass_disp_clk = - pxl_clk_params.dfs_bypass_display_clock; - actual_clock = pxl_clk_params.dfs_bypass_display_clock; - } - - /* from power down, we need mark the clock state as ClocksStateNominal - * from HWReset, so when resume we will call pplib voltage regulator.*/ - if (requested_clk_khz == 0) - clk_mgr_dce->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; - - if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) - dmcu->funcs->set_psr_wait_loop(dmcu, actual_clock / 1000 / 7); - - return actual_clock; -} - -int dce112_set_clock(struct clk_mgr *clk_mgr, int requested_clk_khz) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct bp_set_dce_clock_parameters dce_clk_params; - struct dc_bios *bp = clk_mgr->ctx->dc_bios; - struct dc *core_dc = clk_mgr->ctx->dc; - struct dmcu *dmcu = core_dc->res_pool->dmcu; - int actual_clock = requested_clk_khz; - /* Prepare to program display clock*/ - memset(&dce_clk_params, 0, sizeof(dce_clk_params)); - - /* Make sure requested clock isn't lower than minimum threshold*/ - if (requested_clk_khz > 0) - requested_clk_khz = max(requested_clk_khz, - clk_mgr_dce->dentist_vco_freq_khz / 62); - - dce_clk_params.target_clock_frequency = requested_clk_khz; - dce_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; - dce_clk_params.clock_type = DCECLOCK_TYPE_DISPLAY_CLOCK; - - bp->funcs->set_dce_clock(bp, &dce_clk_params); - actual_clock = dce_clk_params.target_clock_frequency; - - /* from power down, we need mark the clock state as ClocksStateNominal - * from HWReset, so when resume we will call pplib voltage regulator.*/ - if (requested_clk_khz == 0) - clk_mgr_dce->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; - - /*Program DP ref Clock*/ - /*VBIOS will determine DPREFCLK frequency, so we don't set it*/ - dce_clk_params.target_clock_frequency = 0; - dce_clk_params.clock_type = DCECLOCK_TYPE_DPREFCLK; - - if (!((clk_mgr->ctx->asic_id.chip_family == FAMILY_AI) && - ASICREV_IS_VEGA20_P(clk_mgr->ctx->asic_id.hw_internal_rev))) - dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = - (dce_clk_params.pll_id == - CLOCK_SOURCE_COMBO_DISPLAY_PLL0); - else - dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = false; - - bp->funcs->set_dce_clock(bp, &dce_clk_params); - - if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { - if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { - if (clk_mgr_dce->dfs_bypass_disp_clk != actual_clock) - dmcu->funcs->set_psr_wait_loop(dmcu, - actual_clock / 1000 / 7); - } - } - - clk_mgr_dce->dfs_bypass_disp_clk = actual_clock; - return actual_clock; -} - -static void dce_clock_read_integrated_info(struct dce_clk_mgr *clk_mgr_dce) -{ - struct dc_debug_options *debug = &clk_mgr_dce->base.ctx->dc->debug; - struct dc_bios *bp = clk_mgr_dce->base.ctx->dc_bios; - struct integrated_info info = { { { 0 } } }; - struct dc_firmware_info fw_info = { { 0 } }; - int i; - - if (bp->integrated_info) - info = *bp->integrated_info; - - clk_mgr_dce->dentist_vco_freq_khz = info.dentist_vco_freq; - if (clk_mgr_dce->dentist_vco_freq_khz == 0) { - bp->funcs->get_firmware_info(bp, &fw_info); - clk_mgr_dce->dentist_vco_freq_khz = - fw_info.smu_gpu_pll_output_freq; - if (clk_mgr_dce->dentist_vco_freq_khz == 0) - clk_mgr_dce->dentist_vco_freq_khz = 3600000; - } - - /*update the maximum display clock for each power state*/ - for (i = 0; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) { - enum dm_pp_clocks_state clk_state = DM_PP_CLOCKS_STATE_INVALID; - - switch (i) { - case 0: - clk_state = DM_PP_CLOCKS_STATE_ULTRA_LOW; - break; - - case 1: - clk_state = DM_PP_CLOCKS_STATE_LOW; - break; - - case 2: - clk_state = DM_PP_CLOCKS_STATE_NOMINAL; - break; - - case 3: - clk_state = DM_PP_CLOCKS_STATE_PERFORMANCE; - break; - - default: - clk_state = DM_PP_CLOCKS_STATE_INVALID; - break; - } - - /*Do not allow bad VBIOS/SBIOS to override with invalid values, - * check for > 100MHz*/ - if (info.disp_clk_voltage[i].max_supported_clk >= 100000) - clk_mgr_dce->max_clks_by_state[clk_state].display_clk_khz = - info.disp_clk_voltage[i].max_supported_clk; - } - - if (!debug->disable_dfs_bypass && bp->integrated_info) - if (bp->integrated_info->gpu_cap_info & DFS_BYPASS_ENABLE) - clk_mgr_dce->dfs_bypass_enabled = true; -} - -void dce_clock_read_ss_info(struct dce_clk_mgr *clk_mgr_dce) -{ - struct dc_bios *bp = clk_mgr_dce->base.ctx->dc_bios; - int ss_info_num = bp->funcs->get_ss_entry_number( - bp, AS_SIGNAL_TYPE_GPU_PLL); - - if (ss_info_num) { - struct spread_spectrum_info info = { { 0 } }; - enum bp_result result = bp->funcs->get_spread_spectrum_info( - bp, AS_SIGNAL_TYPE_GPU_PLL, 0, &info); - - /* Based on VBIOS, VBIOS will keep entry for GPU PLL SS - * even if SS not enabled and in that case - * SSInfo.spreadSpectrumPercentage !=0 would be sign - * that SS is enabled - */ - if (result == BP_RESULT_OK && - info.spread_spectrum_percentage != 0) { - clk_mgr_dce->ss_on_dprefclk = true; - clk_mgr_dce->dprefclk_ss_divider = info.spread_percentage_divider; - - if (info.type.CENTER_MODE == 0) { - /* TODO: Currently for DP Reference clock we - * need only SS percentage for - * downspread */ - clk_mgr_dce->dprefclk_ss_percentage = - info.spread_spectrum_percentage; - } - - return; - } - - result = bp->funcs->get_spread_spectrum_info( - bp, AS_SIGNAL_TYPE_DISPLAY_PORT, 0, &info); - - /* Based on VBIOS, VBIOS will keep entry for DPREFCLK SS - * even if SS not enabled and in that case - * SSInfo.spreadSpectrumPercentage !=0 would be sign - * that SS is enabled - */ - if (result == BP_RESULT_OK && - info.spread_spectrum_percentage != 0) { - clk_mgr_dce->ss_on_dprefclk = true; - clk_mgr_dce->dprefclk_ss_divider = info.spread_percentage_divider; - - if (info.type.CENTER_MODE == 0) { - /* Currently for DP Reference clock we - * need only SS percentage for - * downspread */ - clk_mgr_dce->dprefclk_ss_percentage = - info.spread_spectrum_percentage; - } - if (clk_mgr_dce->base.ctx->dc->debug.ignore_dpref_ss) - clk_mgr_dce->dprefclk_ss_percentage = 0; - } - } -} - -/** - * dce121_clock_patch_xgmi_ss_info() - Save XGMI spread spectrum info - * @clk_mgr: clock manager base structure - * - * Reads from VBIOS the XGMI spread spectrum info and saves it within - * the dce clock manager. This operation will overwrite the existing dprefclk - * SS values if the vBIOS query succeeds. Otherwise, it does nothing. It also - * sets the ->xgmi_enabled flag. - */ -void dce121_clock_patch_xgmi_ss_info(struct clk_mgr *clk_mgr) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - enum bp_result result; - struct spread_spectrum_info info = { { 0 } }; - struct dc_bios *bp = clk_mgr_dce->base.ctx->dc_bios; - - clk_mgr_dce->xgmi_enabled = false; - - result = bp->funcs->get_spread_spectrum_info(bp, AS_SIGNAL_TYPE_XGMI, - 0, &info); - if (result == BP_RESULT_OK && info.spread_spectrum_percentage != 0) { - clk_mgr_dce->xgmi_enabled = true; - clk_mgr_dce->ss_on_dprefclk = true; - clk_mgr_dce->dprefclk_ss_divider = - info.spread_percentage_divider; - - if (info.type.CENTER_MODE == 0) { - /* Currently for DP Reference clock we - * need only SS percentage for - * downspread */ - clk_mgr_dce->dprefclk_ss_percentage = - info.spread_spectrum_percentage; - } - } -} - -void dce110_fill_display_configs( - const struct dc_state *context, - struct dm_pp_display_configuration *pp_display_cfg) -{ - int j; - int num_cfgs = 0; - - for (j = 0; j < context->stream_count; j++) { - int k; - - const struct dc_stream_state *stream = context->streams[j]; - struct dm_pp_single_disp_config *cfg = - &pp_display_cfg->disp_configs[num_cfgs]; - const struct pipe_ctx *pipe_ctx = NULL; - - for (k = 0; k < MAX_PIPES; k++) - if (stream == context->res_ctx.pipe_ctx[k].stream) { - pipe_ctx = &context->res_ctx.pipe_ctx[k]; - break; - } - - ASSERT(pipe_ctx != NULL); - - /* only notify active stream */ - if (stream->dpms_off) - continue; - - num_cfgs++; - cfg->signal = pipe_ctx->stream->signal; - cfg->pipe_idx = pipe_ctx->stream_res.tg->inst; - cfg->src_height = stream->src.height; - cfg->src_width = stream->src.width; - cfg->ddi_channel_mapping = - stream->link->ddi_channel_mapping.raw; - cfg->transmitter = - stream->link->link_enc->transmitter; - cfg->link_settings.lane_count = - stream->link->cur_link_settings.lane_count; - cfg->link_settings.link_rate = - stream->link->cur_link_settings.link_rate; - cfg->link_settings.link_spread = - stream->link->cur_link_settings.link_spread; - cfg->sym_clock = stream->phy_pix_clk; - /* Round v_refresh*/ - cfg->v_refresh = stream->timing.pix_clk_100hz * 100; - cfg->v_refresh /= stream->timing.h_total; - cfg->v_refresh = (cfg->v_refresh + stream->timing.v_total / 2) - / stream->timing.v_total; - } - - pp_display_cfg->display_count = num_cfgs; -} - -static uint32_t dce110_get_min_vblank_time_us(const struct dc_state *context) -{ - uint8_t j; - uint32_t min_vertical_blank_time = -1; - - for (j = 0; j < context->stream_count; j++) { - struct dc_stream_state *stream = context->streams[j]; - uint32_t vertical_blank_in_pixels = 0; - uint32_t vertical_blank_time = 0; - - vertical_blank_in_pixels = stream->timing.h_total * - (stream->timing.v_total - - stream->timing.v_addressable); - - vertical_blank_time = vertical_blank_in_pixels - * 10000 / stream->timing.pix_clk_100hz; - - if (min_vertical_blank_time > vertical_blank_time) - min_vertical_blank_time = vertical_blank_time; - } - - return min_vertical_blank_time; -} - -static int determine_sclk_from_bounding_box( - const struct dc *dc, - int required_sclk) -{ - int i; - - /* - * Some asics do not give us sclk levels, so we just report the actual - * required sclk - */ - if (dc->sclk_lvls.num_levels == 0) - return required_sclk; - - for (i = 0; i < dc->sclk_lvls.num_levels; i++) { - if (dc->sclk_lvls.clocks_in_khz[i] >= required_sclk) - return dc->sclk_lvls.clocks_in_khz[i]; - } - /* - * even maximum level could not satisfy requirement, this - * is unexpected at this stage, should have been caught at - * validation time - */ - ASSERT(0); - return dc->sclk_lvls.clocks_in_khz[dc->sclk_lvls.num_levels - 1]; -} - -static void dce_pplib_apply_display_requirements( - struct dc *dc, - struct dc_state *context) -{ - struct dm_pp_display_configuration *pp_display_cfg = &context->pp_display_cfg; - - pp_display_cfg->avail_mclk_switch_time_us = dce110_get_min_vblank_time_us(context); - - dce110_fill_display_configs(context, pp_display_cfg); - - if (memcmp(&dc->current_state->pp_display_cfg, pp_display_cfg, sizeof(*pp_display_cfg)) != 0) - dm_pp_apply_display_requirements(dc->ctx, pp_display_cfg); -} - -static void dce11_pplib_apply_display_requirements( - struct dc *dc, - struct dc_state *context) -{ - struct dm_pp_display_configuration *pp_display_cfg = &context->pp_display_cfg; - - pp_display_cfg->all_displays_in_sync = - context->bw_ctx.bw.dce.all_displays_in_sync; - pp_display_cfg->nb_pstate_switch_disable = - context->bw_ctx.bw.dce.nbp_state_change_enable == false; - pp_display_cfg->cpu_cc6_disable = - context->bw_ctx.bw.dce.cpuc_state_change_enable == false; - pp_display_cfg->cpu_pstate_disable = - context->bw_ctx.bw.dce.cpup_state_change_enable == false; - pp_display_cfg->cpu_pstate_separation_time = - context->bw_ctx.bw.dce.blackout_recovery_time_us; - - pp_display_cfg->min_memory_clock_khz = context->bw_ctx.bw.dce.yclk_khz - / MEMORY_TYPE_MULTIPLIER_CZ; - - pp_display_cfg->min_engine_clock_khz = determine_sclk_from_bounding_box( - dc, - context->bw_ctx.bw.dce.sclk_khz); - - /* - * As workaround for >4x4K lightup set dcfclock to min_engine_clock value. - * This is not required for less than 5 displays, - * thus don't request decfclk in dc to avoid impact - * on power saving. - * - */ - pp_display_cfg->min_dcfclock_khz = (context->stream_count > 4) ? - pp_display_cfg->min_engine_clock_khz : 0; - - pp_display_cfg->min_engine_clock_deep_sleep_khz - = context->bw_ctx.bw.dce.sclk_deep_sleep_khz; - - pp_display_cfg->avail_mclk_switch_time_us = - dce110_get_min_vblank_time_us(context); - /* TODO: dce11.2*/ - pp_display_cfg->avail_mclk_switch_time_in_disp_active_us = 0; - - pp_display_cfg->disp_clk_khz = dc->res_pool->clk_mgr->clks.dispclk_khz; - - dce110_fill_display_configs(context, pp_display_cfg); - - /* TODO: is this still applicable?*/ - if (pp_display_cfg->display_count == 1) { - const struct dc_crtc_timing *timing = - &context->streams[0]->timing; - - pp_display_cfg->crtc_index = - pp_display_cfg->disp_configs[0].pipe_idx; - pp_display_cfg->line_time_in_us = timing->h_total * 10000 / timing->pix_clk_100hz; - } - - if (memcmp(&dc->current_state->pp_display_cfg, pp_display_cfg, sizeof(*pp_display_cfg)) != 0) - dm_pp_apply_display_requirements(dc->ctx, pp_display_cfg); -} - -static void dce_update_clocks(struct clk_mgr *clk_mgr, - struct dc_state *context, - bool safe_to_lower) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct dm_pp_power_level_change_request level_change_req; - int patched_disp_clk = context->bw_ctx.bw.dce.dispclk_khz; - - /*TODO: W/A for dal3 linux, investigate why this works */ - if (!clk_mgr_dce->dfs_bypass_active) - patched_disp_clk = patched_disp_clk * 115 / 100; - - level_change_req.power_level = dce_get_required_clocks_state(clk_mgr, context); - /* get max clock state from PPLIB */ - if ((level_change_req.power_level < clk_mgr_dce->cur_min_clks_state && safe_to_lower) - || level_change_req.power_level > clk_mgr_dce->cur_min_clks_state) { - if (dm_pp_apply_power_level_change_request(clk_mgr->ctx, &level_change_req)) - clk_mgr_dce->cur_min_clks_state = level_change_req.power_level; - } - - if (should_set_clock(safe_to_lower, patched_disp_clk, clk_mgr->clks.dispclk_khz)) { - patched_disp_clk = dce_set_clock(clk_mgr, patched_disp_clk); - clk_mgr->clks.dispclk_khz = patched_disp_clk; - } - dce_pplib_apply_display_requirements(clk_mgr->ctx->dc, context); -} - -static void dce11_update_clocks(struct clk_mgr *clk_mgr, - struct dc_state *context, - bool safe_to_lower) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct dm_pp_power_level_change_request level_change_req; - int patched_disp_clk = context->bw_ctx.bw.dce.dispclk_khz; - - /*TODO: W/A for dal3 linux, investigate why this works */ - if (!clk_mgr_dce->dfs_bypass_active) - patched_disp_clk = patched_disp_clk * 115 / 100; - - level_change_req.power_level = dce_get_required_clocks_state(clk_mgr, context); - /* get max clock state from PPLIB */ - if ((level_change_req.power_level < clk_mgr_dce->cur_min_clks_state && safe_to_lower) - || level_change_req.power_level > clk_mgr_dce->cur_min_clks_state) { - if (dm_pp_apply_power_level_change_request(clk_mgr->ctx, &level_change_req)) - clk_mgr_dce->cur_min_clks_state = level_change_req.power_level; - } - - if (should_set_clock(safe_to_lower, patched_disp_clk, clk_mgr->clks.dispclk_khz)) { - context->bw_ctx.bw.dce.dispclk_khz = dce_set_clock(clk_mgr, patched_disp_clk); - clk_mgr->clks.dispclk_khz = patched_disp_clk; - } - dce11_pplib_apply_display_requirements(clk_mgr->ctx->dc, context); -} - -static void dce112_update_clocks(struct clk_mgr *clk_mgr, - struct dc_state *context, - bool safe_to_lower) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct dm_pp_power_level_change_request level_change_req; - int patched_disp_clk = context->bw_ctx.bw.dce.dispclk_khz; - - /*TODO: W/A for dal3 linux, investigate why this works */ - if (!clk_mgr_dce->dfs_bypass_active) - patched_disp_clk = patched_disp_clk * 115 / 100; - - level_change_req.power_level = dce_get_required_clocks_state(clk_mgr, context); - /* get max clock state from PPLIB */ - if ((level_change_req.power_level < clk_mgr_dce->cur_min_clks_state && safe_to_lower) - || level_change_req.power_level > clk_mgr_dce->cur_min_clks_state) { - if (dm_pp_apply_power_level_change_request(clk_mgr->ctx, &level_change_req)) - clk_mgr_dce->cur_min_clks_state = level_change_req.power_level; - } - - if (should_set_clock(safe_to_lower, patched_disp_clk, clk_mgr->clks.dispclk_khz)) { - patched_disp_clk = dce112_set_clock(clk_mgr, patched_disp_clk); - clk_mgr->clks.dispclk_khz = patched_disp_clk; - } - dce11_pplib_apply_display_requirements(clk_mgr->ctx->dc, context); -} - -static void dce12_update_clocks(struct clk_mgr *clk_mgr, - struct dc_state *context, - bool safe_to_lower) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(clk_mgr); - struct dm_pp_clock_for_voltage_req clock_voltage_req = {0}; - int max_pix_clk = get_max_pixel_clock_for_all_paths(context); - int patched_disp_clk = context->bw_ctx.bw.dce.dispclk_khz; - - /*TODO: W/A for dal3 linux, investigate why this works */ - if (!clk_mgr_dce->dfs_bypass_active) - patched_disp_clk = patched_disp_clk * 115 / 100; - - if (should_set_clock(safe_to_lower, patched_disp_clk, clk_mgr->clks.dispclk_khz)) { - clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DISPLAY_CLK; - /* - * When xGMI is enabled, the display clk needs to be adjusted - * with the WAFL link's SS percentage. - */ - if (clk_mgr_dce->xgmi_enabled) - patched_disp_clk = clk_mgr_adjust_dp_ref_freq_for_ss( - clk_mgr_dce, patched_disp_clk); - clock_voltage_req.clocks_in_khz = patched_disp_clk; - clk_mgr->clks.dispclk_khz = dce112_set_clock(clk_mgr, patched_disp_clk); - - dm_pp_apply_clock_for_voltage_request(clk_mgr->ctx, &clock_voltage_req); - } - - if (should_set_clock(safe_to_lower, max_pix_clk, clk_mgr->clks.phyclk_khz)) { - clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DISPLAYPHYCLK; - clock_voltage_req.clocks_in_khz = max_pix_clk; - clk_mgr->clks.phyclk_khz = max_pix_clk; - - dm_pp_apply_clock_for_voltage_request(clk_mgr->ctx, &clock_voltage_req); - } - dce11_pplib_apply_display_requirements(clk_mgr->ctx->dc, context); -} - -static const struct clk_mgr_funcs dce120_funcs = { - .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, - .update_clocks = dce12_update_clocks -}; - -static const struct clk_mgr_funcs dce112_funcs = { - .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, - .update_clocks = dce112_update_clocks -}; - -static const struct clk_mgr_funcs dce110_funcs = { - .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, - .update_clocks = dce11_update_clocks, -}; - -static const struct clk_mgr_funcs dce_funcs = { - .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, - .update_clocks = dce_update_clocks -}; - -static void dce_clk_mgr_construct( - struct dce_clk_mgr *clk_mgr_dce, - struct dc_context *ctx, - const struct clk_mgr_registers *regs, - const struct clk_mgr_shift *clk_shift, - const struct clk_mgr_mask *clk_mask) -{ - struct clk_mgr *base = &clk_mgr_dce->base; - struct dm_pp_static_clock_info static_clk_info = {0}; - - base->ctx = ctx; - base->funcs = &dce_funcs; - - clk_mgr_dce->regs = regs; - clk_mgr_dce->clk_mgr_shift = clk_shift; - clk_mgr_dce->clk_mgr_mask = clk_mask; - - clk_mgr_dce->dfs_bypass_disp_clk = 0; - - clk_mgr_dce->dprefclk_ss_percentage = 0; - clk_mgr_dce->dprefclk_ss_divider = 1000; - clk_mgr_dce->ss_on_dprefclk = false; - - - if (dm_pp_get_static_clocks(ctx, &static_clk_info)) - clk_mgr_dce->max_clks_state = static_clk_info.max_clocks_state; - else - clk_mgr_dce->max_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; - clk_mgr_dce->cur_min_clks_state = DM_PP_CLOCKS_STATE_INVALID; - - dce_clock_read_integrated_info(clk_mgr_dce); - dce_clock_read_ss_info(clk_mgr_dce); -} - -struct clk_mgr *dce_clk_mgr_create( - struct dc_context *ctx, - const struct clk_mgr_registers *regs, - const struct clk_mgr_shift *clk_shift, - const struct clk_mgr_mask *clk_mask) -{ - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - memcpy(clk_mgr_dce->max_clks_by_state, - dce80_max_clks_by_state, - sizeof(dce80_max_clks_by_state)); - - dce_clk_mgr_construct( - clk_mgr_dce, ctx, regs, clk_shift, clk_mask); - - return &clk_mgr_dce->base; -} - -struct clk_mgr *dce110_clk_mgr_create( - struct dc_context *ctx, - const struct clk_mgr_registers *regs, - const struct clk_mgr_shift *clk_shift, - const struct clk_mgr_mask *clk_mask) -{ - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - memcpy(clk_mgr_dce->max_clks_by_state, - dce110_max_clks_by_state, - sizeof(dce110_max_clks_by_state)); - - dce_clk_mgr_construct( - clk_mgr_dce, ctx, regs, clk_shift, clk_mask); - - clk_mgr_dce->base.funcs = &dce110_funcs; - - return &clk_mgr_dce->base; -} - -struct clk_mgr *dce112_clk_mgr_create( - struct dc_context *ctx, - const struct clk_mgr_registers *regs, - const struct clk_mgr_shift *clk_shift, - const struct clk_mgr_mask *clk_mask) -{ - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - memcpy(clk_mgr_dce->max_clks_by_state, - dce112_max_clks_by_state, - sizeof(dce112_max_clks_by_state)); - - dce_clk_mgr_construct( - clk_mgr_dce, ctx, regs, clk_shift, clk_mask); - - clk_mgr_dce->base.funcs = &dce112_funcs; - - return &clk_mgr_dce->base; -} - -struct clk_mgr *dce120_clk_mgr_create(struct dc_context *ctx) -{ - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - memcpy(clk_mgr_dce->max_clks_by_state, - dce120_max_clks_by_state, - sizeof(dce120_max_clks_by_state)); - - dce_clk_mgr_construct( - clk_mgr_dce, ctx, NULL, NULL, NULL); - - clk_mgr_dce->dprefclk_khz = 600000; - clk_mgr_dce->base.funcs = &dce120_funcs; - - return &clk_mgr_dce->base; -} - -struct clk_mgr *dce121_clk_mgr_create(struct dc_context *ctx) -{ - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), - GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - memcpy(clk_mgr_dce->max_clks_by_state, dce120_max_clks_by_state, - sizeof(dce120_max_clks_by_state)); - - dce_clk_mgr_construct(clk_mgr_dce, ctx, NULL, NULL, NULL); - - clk_mgr_dce->dprefclk_khz = 625000; - clk_mgr_dce->base.funcs = &dce120_funcs; - - return &clk_mgr_dce->base; -} - -void dce_clk_mgr_destroy(struct clk_mgr **clk_mgr) -{ - struct dce_clk_mgr *clk_mgr_dce = TO_DCE_CLK_MGR(*clk_mgr); - - kfree(clk_mgr_dce); - *clk_mgr = NULL; -} -- 2.52.0
