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path: root/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_clk_mgr.c
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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.c289
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;
-}
-
-