diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c deleted file mode 100644 index 2b2de1d913c9..000000000000 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - * Copyright 2018 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 "dcn10_clk_mgr.h" - -#include "reg_helper.h" -#include "core_types.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 - -static int dcn1_determine_dppclk_threshold(struct clk_mgr *clk_mgr, struct dc_clocks *new_clocks) -{ - bool request_dpp_div = new_clocks->dispclk_khz > new_clocks->dppclk_khz; - bool dispclk_increase = new_clocks->dispclk_khz > clk_mgr->clks.dispclk_khz; - int disp_clk_threshold = new_clocks->max_supported_dppclk_khz; - bool cur_dpp_div = clk_mgr->clks.dispclk_khz > clk_mgr->clks.dppclk_khz; - - /* increase clock, looking for div is 0 for current, request div is 1*/ - if (dispclk_increase) { - /* already divided by 2, no need to reach target clk with 2 steps*/ - if (cur_dpp_div) - return new_clocks->dispclk_khz; - - /* request disp clk is lower than maximum supported dpp clk, - * no need to reach target clk with two steps. - */ - if (new_clocks->dispclk_khz <= disp_clk_threshold) - return new_clocks->dispclk_khz; - - /* target dpp clk not request divided by 2, still within threshold */ - if (!request_dpp_div) - return new_clocks->dispclk_khz; - - } else { - /* decrease clock, looking for current dppclk divided by 2, - * request dppclk not divided by 2. - */ - - /* current dpp clk not divided by 2, no need to ramp*/ - if (!cur_dpp_div) - return new_clocks->dispclk_khz; - - /* current disp clk is lower than current maximum dpp clk, - * no need to ramp - */ - if (clk_mgr->clks.dispclk_khz <= disp_clk_threshold) - return new_clocks->dispclk_khz; - - /* request dpp clk need to be divided by 2 */ - if (request_dpp_div) - return new_clocks->dispclk_khz; - } - - return disp_clk_threshold; -} - -static void dcn1_ramp_up_dispclk_with_dpp(struct clk_mgr *clk_mgr, struct dc_clocks *new_clocks) -{ - struct dc *dc = clk_mgr->ctx->dc; - int dispclk_to_dpp_threshold = dcn1_determine_dppclk_threshold(clk_mgr, new_clocks); - bool request_dpp_div = new_clocks->dispclk_khz > new_clocks->dppclk_khz; - int i; - - /* set disp clk to dpp clk threshold */ - dce112_set_clock(clk_mgr, dispclk_to_dpp_threshold); - - /* update request dpp clk division option */ - for (i = 0; i < dc->res_pool->pipe_count; i++) { - struct pipe_ctx *pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i]; - - if (!pipe_ctx->plane_state) - continue; - - pipe_ctx->plane_res.dpp->funcs->dpp_dppclk_control( - pipe_ctx->plane_res.dpp, - request_dpp_div, - true); - } - - /* If target clk not same as dppclk threshold, set to target clock */ - if (dispclk_to_dpp_threshold != new_clocks->dispclk_khz) - dce112_set_clock(clk_mgr, new_clocks->dispclk_khz); - - clk_mgr->clks.dispclk_khz = new_clocks->dispclk_khz; - clk_mgr->clks.dppclk_khz = new_clocks->dppclk_khz; - clk_mgr->clks.max_supported_dppclk_khz = new_clocks->max_supported_dppclk_khz; -} - -static int get_active_display_cnt( - struct dc *dc, - struct dc_state *context) -{ - int i, display_count; - - display_count = 0; - for (i = 0; i < context->stream_count; i++) { - const struct dc_stream_state *stream = context->streams[i]; - - /* - * Only notify active stream or virtual stream. - * Need to notify virtual stream to work around - * headless case. HPD does not fire when system is in - * S0i2. - */ - if (!stream->dpms_off || stream->signal == SIGNAL_TYPE_VIRTUAL) - display_count++; - } - - return display_count; -} - -static void dcn1_update_clocks(struct clk_mgr *clk_mgr, - struct dc_state *context, - bool safe_to_lower) -{ - struct dc *dc = clk_mgr->ctx->dc; - struct dc_debug_options *debug = &dc->debug; - struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk; - struct pp_smu_funcs_rv *pp_smu = NULL; - bool send_request_to_increase = false; - bool send_request_to_lower = false; - int display_count; - - bool enter_display_off = false; - - display_count = get_active_display_cnt(dc, context); - if (dc->res_pool->pp_smu) - pp_smu = &dc->res_pool->pp_smu->rv_funcs; - if (display_count == 0) - enter_display_off = true; - - if (enter_display_off == safe_to_lower) { - /* - * Notify SMU active displays - * if function pointer not set up, this message is - * sent as part of pplib_apply_display_requirements. - */ - if (pp_smu && pp_smu->set_display_count) - pp_smu->set_display_count(&pp_smu->pp_smu, display_count); - } - - if (new_clocks->dispclk_khz > clk_mgr->clks.dispclk_khz - || new_clocks->phyclk_khz > clk_mgr->clks.phyclk_khz - || new_clocks->fclk_khz > clk_mgr->clks.fclk_khz - || new_clocks->dcfclk_khz > clk_mgr->clks.dcfclk_khz) - send_request_to_increase = true; - - if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, clk_mgr->clks.phyclk_khz)) { - clk_mgr->clks.phyclk_khz = new_clocks->phyclk_khz; - send_request_to_lower = true; - } - - // F Clock - if (debug->force_fclk_khz != 0) - new_clocks->fclk_khz = debug->force_fclk_khz; - - if (should_set_clock(safe_to_lower, new_clocks->fclk_khz, clk_mgr->clks.fclk_khz)) { - clk_mgr->clks.fclk_khz = new_clocks->fclk_khz; - send_request_to_lower = true; - } - - //DCF Clock - if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr->clks.dcfclk_khz)) { - clk_mgr->clks.dcfclk_khz = new_clocks->dcfclk_khz; - send_request_to_lower = true; - } - - if (should_set_clock(safe_to_lower, - new_clocks->dcfclk_deep_sleep_khz, clk_mgr->clks.dcfclk_deep_sleep_khz)) { - clk_mgr->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; - send_request_to_lower = 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*/ - if (pp_smu && pp_smu->set_hard_min_fclk_by_freq && - pp_smu->set_hard_min_dcfclk_by_freq && - pp_smu->set_min_deep_sleep_dcfclk) { - - pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, new_clocks->fclk_khz / 1000); - pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, new_clocks->dcfclk_khz / 1000); - pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, (new_clocks->dcfclk_deep_sleep_khz + 999) / 1000); - } - } - - /* dcn1 dppclk is tied to dispclk */ - /* program dispclk on = as a w/a for sleep resume clock ramping issues */ - if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr->clks.dispclk_khz) - || new_clocks->dispclk_khz == clk_mgr->clks.dispclk_khz) { - dcn1_ramp_up_dispclk_with_dpp(clk_mgr, new_clocks); - clk_mgr->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*/ - if (pp_smu && pp_smu->set_hard_min_fclk_by_freq && - pp_smu->set_hard_min_dcfclk_by_freq && - pp_smu->set_min_deep_sleep_dcfclk) { - - pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, new_clocks->fclk_khz / 1000); - pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, new_clocks->dcfclk_khz / 1000); - pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, (new_clocks->dcfclk_deep_sleep_khz + 999) / 1000); - } - } -} -static const struct clk_mgr_funcs dcn1_funcs = { - .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, - .update_clocks = dcn1_update_clocks -}; -struct clk_mgr *dcn1_clk_mgr_create(struct dc_context *ctx) -{ - struct dc_debug_options *debug = &ctx->dc->debug; - struct dc_bios *bp = ctx->dc_bios; - struct dc_firmware_info fw_info = { { 0 } }; - struct dce_clk_mgr *clk_mgr_dce = kzalloc(sizeof(*clk_mgr_dce), GFP_KERNEL); - - if (clk_mgr_dce == NULL) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - clk_mgr_dce->base.ctx = ctx; - clk_mgr_dce->base.funcs = &dcn1_funcs; - - 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; - - clk_mgr_dce->dprefclk_khz = 600000; - if (bp->integrated_info) - clk_mgr_dce->dentist_vco_freq_khz = bp->integrated_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; - } - - 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; - - dce_clock_read_ss_info(clk_mgr_dce); - - return &clk_mgr_dce->base; -} - - |