diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr')
20 files changed, 2638 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile new file mode 100644 index 000000000000..003c27767e9c --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile @@ -0,0 +1,87 @@ +# +# Copyright 2017 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. +# +# +# Makefile for the 'clk_mgr' sub-component of DAL. +# It provides the control and status of HW CLK_MGR pins. + +CLK_MGR = clk_mgr.o + +AMD_DAL_CLK_MGR = $(addprefix $(AMDDALPATH)/dc/clk_mgr/,$(CLK_MGR)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR) + + +############################################################################### +# DCE 100 and DCE8x +############################################################################### +CLK_MGR_DCE100 = dce_clk_mgr.o + +AMD_DAL_CLK_MGR_DCE100 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dce100/,$(CLK_MGR_DCE100)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCE100) + +############################################################################### +# DCE 100 and DCE8x +############################################################################### +CLK_MGR_DCE110 = dce110_clk_mgr.o + +AMD_DAL_CLK_MGR_DCE110 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dce110/,$(CLK_MGR_DCE110)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCE110) +############################################################################### +# DCE 112 +############################################################################### +CLK_MGR_DCE112 = dce112_clk_mgr.o + +AMD_DAL_CLK_MGR_DCE112 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dce112/,$(CLK_MGR_DCE112)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCE112) +############################################################################### +# DCE 120 +############################################################################### +CLK_MGR_DCE120 = dce120_clk_mgr.o + +AMD_DAL_CLK_MGR_DCE120 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dce120/,$(CLK_MGR_DCE120)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCE120) +ifdef CONFIG_DRM_AMD_DC_DCN1_0 +############################################################################### +# DCN10 +############################################################################### +CLK_MGR_DCN10 = rv1_clk_mgr.o rv1_clk_mgr_vbios_smu.o rv2_clk_mgr.o + +AMD_DAL_CLK_MGR_DCN10 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn10/,$(CLK_MGR_DCN10)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN10) +endif + +ifdef CONFIG_DRM_AMD_DC_DCN2_0 +############################################################################### +# DCN20 +############################################################################### +CLK_MGR_DCN20 = dcn20_clk_mgr.o + +AMD_DAL_CLK_MGR_DCN20 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn20/,$(CLK_MGR_DCN20)) + +AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN20) +endif + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c new file mode 100644 index 000000000000..6b8fc5cbabb8 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c @@ -0,0 +1,143 @@ +/* + * 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 "dal_asic_id.h" +#include "dc_types.h" +#include "dccg.h" +#include "clk_mgr_internal.h" + +#include "dce100/dce_clk_mgr.h" +#include "dce110/dce110_clk_mgr.h" +#include "dce112/dce112_clk_mgr.h" +#include "dce120/dce120_clk_mgr.h" +#include "dcn10/rv1_clk_mgr.h" +#include "dcn10/rv2_clk_mgr.h" +#include "dcn20/dcn20_clk_mgr.h" + + +int clk_mgr_helper_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; +} + + +struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *pp_smu, struct dccg *dccg) +{ + struct hw_asic_id asic_id = ctx->asic_id; + + struct clk_mgr_internal *clk_mgr = kzalloc(sizeof(*clk_mgr), GFP_KERNEL); + + if (clk_mgr == NULL) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + switch (asic_id.chip_family) { + case FAMILY_CI: + case FAMILY_KV: + dce_clk_mgr_construct(ctx, clk_mgr); + break; + case FAMILY_CZ: + dce110_clk_mgr_construct(ctx, clk_mgr); + break; + case FAMILY_VI: + if (ASIC_REV_IS_TONGA_P(asic_id.hw_internal_rev) || + ASIC_REV_IS_FIJI_P(asic_id.hw_internal_rev)) { + dce_clk_mgr_construct(ctx, clk_mgr); + break; + } + if (ASIC_REV_IS_POLARIS10_P(asic_id.hw_internal_rev) || + ASIC_REV_IS_POLARIS11_M(asic_id.hw_internal_rev) || + ASIC_REV_IS_POLARIS12_V(asic_id.hw_internal_rev)) { + dce112_clk_mgr_construct(ctx, clk_mgr); + break; + } + if (ASIC_REV_IS_VEGAM(asic_id.hw_internal_rev)) { + dce112_clk_mgr_construct(ctx, clk_mgr); + break; + } + break; + case FAMILY_AI: + if (ASICREV_IS_VEGA20_P(asic_id.hw_internal_rev)) + dce121_clk_mgr_construct(ctx, clk_mgr); + else + dce120_clk_mgr_construct(ctx, clk_mgr); + break; + +#if defined(CONFIG_DRM_AMD_DC_DCN1_0) + case FAMILY_RV: + if (ASICREV_IS_RAVEN2(asic_id.hw_internal_rev)) { + rv2_clk_mgr_construct(ctx, clk_mgr, pp_smu); + break; + } + if (ASICREV_IS_RAVEN(asic_id.hw_internal_rev) || + ASICREV_IS_PICASSO(asic_id.hw_internal_rev)) { + rv1_clk_mgr_construct(ctx, clk_mgr, pp_smu); + break; + } + break; +#endif /* Family RV */ + +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) + case FAMILY_NV: + dcn20_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg); + break; +#endif /* Family NV */ + + default: + ASSERT(0); /* Unknown Asic */ + break; + } + + return &clk_mgr->base; +} + +void dc_destroy_clk_mgr(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + kfree(clk_mgr); +} + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.c new file mode 100644 index 000000000000..814450fefffa --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.c @@ -0,0 +1,471 @@ +/* + * 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 "dccg.h" +#include "clk_mgr_internal.h" +#include "dce_clk_mgr.h" +#include "dce110/dce110_clk_mgr.h" +#include "dce112/dce112_clk_mgr.h" +#include "reg_helper.h" +#include "dmcu.h" +#include "core_types.h" +#include "dal_asic_id.h" + +/* + * Currently the register shifts and masks in this file are used for dce100 and dce80 + * which has identical definitions. + * TODO: remove this when DPREFCLK_CNTL and dpref DENTIST_DISPCLK_CNTL + * is moved to dccg, where it belongs + */ +#include "dce/dce_8_0_d.h" +#include "dce/dce_8_0_sh_mask.h" + +#define REG(reg) \ + (clk_mgr->regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + clk_mgr->clk_mgr_shift->field_name, clk_mgr->clk_mgr_mask->field_name + +static const struct clk_mgr_registers disp_clk_regs = { + CLK_COMMON_REG_LIST_DCE_BASE() +}; + +static const struct clk_mgr_shift disp_clk_shift = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(__SHIFT) +}; + +static const struct clk_mgr_mask disp_clk_mask = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(_MASK) +}; + + +/* 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 } }; + +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) + */ + +int dce_adjust_dp_ref_freq_for_ss(struct clk_mgr_internal *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; +} + +int dce_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + 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->dentist_vco_freq_khz) / target_div; + + return dce_adjust_dp_ref_freq_for_ss(clk_mgr, dp_ref_clk_khz); +} + +int dce12_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + return dce_adjust_dp_ref_freq_for_ss(clk_mgr_dce, clk_mgr_base->dprefclk_khz); +} + +/* unit: in_khz before mode set, get pixel clock from context. ASIC register + * may not be programmed yet + */ +uint32_t dce_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; +} + +enum dm_pp_clocks_state dce_get_required_clocks_state( + struct clk_mgr *clk_mgr_base, + struct dc_state *context) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + int i; + enum dm_pp_clocks_state low_req_clk; + int max_pix_clk = dce_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; +} + + +/* TODO: remove use the two broken down functions */ +int dce_set_clock( + struct clk_mgr *clk_mgr_base, + int requested_clk_khz) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct bp_pixel_clock_parameters pxl_clk_params = { 0 }; + struct dc_bios *bp = clk_mgr_base->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; +} + + +static void dce_clock_read_integrated_info(struct clk_mgr_internal *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 clk_mgr_internal *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; + } + } + } +} + +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 dce_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + 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_base, 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_base->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_base->clks.dispclk_khz)) { + patched_disp_clk = dce_set_clock(clk_mgr_base, patched_disp_clk); + clk_mgr_base->clks.dispclk_khz = patched_disp_clk; + } + dce_pplib_apply_display_requirements(clk_mgr_base->ctx->dc, context); +} + + + + + + + + +static struct clk_mgr_funcs dce_funcs = { + .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, + .update_clocks = dce_update_clocks +}; + +void dce_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr) +{ + struct clk_mgr *base = &clk_mgr->base; + struct dm_pp_static_clock_info static_clk_info = {0}; + + memcpy(clk_mgr->max_clks_by_state, + dce80_max_clks_by_state, + sizeof(dce80_max_clks_by_state)); + + base->ctx = ctx; + base->funcs = &dce_funcs; + + clk_mgr->regs = &disp_clk_regs; + clk_mgr->clk_mgr_shift = &disp_clk_shift; + clk_mgr->clk_mgr_mask = &disp_clk_mask; + clk_mgr->dfs_bypass_disp_clk = 0; + + clk_mgr->dprefclk_ss_percentage = 0; + clk_mgr->dprefclk_ss_divider = 1000; + clk_mgr->ss_on_dprefclk = false; + + if (dm_pp_get_static_clocks(ctx, &static_clk_info)) + clk_mgr->max_clks_state = static_clk_info.max_clocks_state; + else + clk_mgr->max_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; + clk_mgr->cur_min_clks_state = DM_PP_CLOCKS_STATE_INVALID; + + dce_clock_read_integrated_info(clk_mgr); + dce_clock_read_ss_info(clk_mgr); +} + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.h new file mode 100644 index 000000000000..f6622f58f62e --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce100/dce_clk_mgr.h @@ -0,0 +1,59 @@ +/* + * 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 + * + */ + + +#ifndef _DCE_CLK_MGR_H_ +#define _DCE_CLK_MGR_H_ + +#include "dc.h" + +/* functions shared by other dce clk mgrs */ +int dce_adjust_dp_ref_freq_for_ss(struct clk_mgr_internal *clk_mgr_dce, int dp_ref_clk_khz); +int dce_get_dp_ref_freq_khz(struct clk_mgr *clk_mgr_base); +enum dm_pp_clocks_state dce_get_required_clocks_state( + struct clk_mgr *clk_mgr_base, + struct dc_state *context); + +uint32_t dce_get_max_pixel_clock_for_all_paths(struct dc_state *context); + + +void dce_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr_dce); + +void dce_clock_read_ss_info(struct clk_mgr_internal *dccg_dce); + +int dce12_get_dp_ref_freq_khz(struct clk_mgr *dccg); + +int dce_set_clock( + struct clk_mgr *clk_mgr_base, + int requested_clk_khz); + + +void dce_clk_mgr_destroy(struct clk_mgr **clk_mgr); + +int dentist_get_divider_from_did(int did); + +#endif /* _DCE_CLK_MGR_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c new file mode 100644 index 000000000000..5cc3acccda2a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c @@ -0,0 +1,276 @@ +/* + * 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 "core_types.h" +#include "clk_mgr_internal.h" + +#include "dce/dce_11_0_d.h" +#include "dce/dce_11_0_sh_mask.h" +#include "dce110_clk_mgr.h" +#include "../clk_mgr/dce100/dce_clk_mgr.h" + +/* set register offset */ +#define SR(reg_name)\ + .reg_name = mm ## reg_name + +/* set register offset with instance */ +#define SRI(reg_name, block, id)\ + .reg_name = mm ## block ## id ## _ ## reg_name + +static const struct clk_mgr_registers disp_clk_regs = { + CLK_COMMON_REG_LIST_DCE_BASE() +}; + +static const struct clk_mgr_shift disp_clk_shift = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(__SHIFT) +}; + +static const struct clk_mgr_mask disp_clk_mask = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(_MASK) +}; + +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 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]; +} + +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; +} + +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; +} + +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->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 dce11_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + 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_base, 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_base->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_base->clks.dispclk_khz)) { + context->bw_ctx.bw.dce.dispclk_khz = dce_set_clock(clk_mgr_base, patched_disp_clk); + clk_mgr_base->clks.dispclk_khz = patched_disp_clk; + } + dce11_pplib_apply_display_requirements(clk_mgr_base->ctx->dc, context); +} + +static struct clk_mgr_funcs dce110_funcs = { + .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, + .update_clocks = dce11_update_clocks +}; + +void dce110_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr) +{ + dce_clk_mgr_construct(ctx, clk_mgr); + + memcpy(clk_mgr->max_clks_by_state, + dce110_max_clks_by_state, + sizeof(dce110_max_clks_by_state)); + + clk_mgr->regs = &disp_clk_regs; + clk_mgr->clk_mgr_shift = &disp_clk_shift; + clk_mgr->clk_mgr_mask = &disp_clk_mask; + clk_mgr->base.funcs = &dce110_funcs; + +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.h new file mode 100644 index 000000000000..c0eb2ea6fb3a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.h @@ -0,0 +1,44 @@ +/* + * 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 + * + */ + +#ifndef DAL_DC_DCE_DCE110_CLK_MGR_H_ +#define DAL_DC_DCE_DCE110_CLK_MGR_H_ + +void dce110_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr); + +void dce110_fill_display_configs( + const struct dc_state *context, + struct dm_pp_display_configuration *pp_display_cfg); + +/* functions shared with other clk mgr*/ +void dce11_pplib_apply_display_requirements( + struct dc *dc, + struct dc_state *context); + +uint32_t dce110_get_min_vblank_time_us(const struct dc_state *context); + +#endif /* DAL_DC_DCE_DCE110_CLK_MGR_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c new file mode 100644 index 000000000000..7c746ef1e32e --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c @@ -0,0 +1,239 @@ +/* + * 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 "core_types.h" +#include "clk_mgr_internal.h" + +#include "dce/dce_11_2_d.h" +#include "dce/dce_11_2_sh_mask.h" +#include "dce100/dce_clk_mgr.h" +#include "dce110/dce110_clk_mgr.h" +#include "dce112_clk_mgr.h" +#include "dal_asic_id.h" + +/* set register offset */ +#define SR(reg_name)\ + .reg_name = mm ## reg_name + +/* set register offset with instance */ +#define SRI(reg_name, block, id)\ + .reg_name = mm ## block ## id ## _ ## reg_name + +static const struct clk_mgr_registers disp_clk_regs = { + CLK_COMMON_REG_LIST_DCE_BASE() +}; + +static const struct clk_mgr_shift disp_clk_shift = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(__SHIFT) +}; + +static const struct clk_mgr_mask disp_clk_mask = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(_MASK) +}; + +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 } }; + + +//TODO: remove use the two broken down functions +int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr_base->ctx->dc_bios; + struct dc *core_dc = clk_mgr_base->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 (!ASICREV_IS_VEGA20_P(clk_mgr_base->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; +} + +int dce112_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_clk_khz) +{ + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr->base.ctx->dc_bios; + struct dc *core_dc = clk_mgr->base.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->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->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; + + + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { + if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { + if (clk_mgr->dfs_bypass_disp_clk != actual_clock) + dmcu->funcs->set_psr_wait_loop(dmcu, + actual_clock / 1000 / 7); + } + } + + clk_mgr->dfs_bypass_disp_clk = actual_clock; + return actual_clock; + +} + +int dce112_set_dprefclk(struct clk_mgr_internal *clk_mgr) +{ + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr->base.ctx->dc_bios; + + memset(&dce_clk_params, 0, sizeof(dce_clk_params)); + + /*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.pll_id = CLOCK_SOURCE_ID_DFS; + dce_clk_params.clock_type = DCECLOCK_TYPE_DPREFCLK; + if (!ASICREV_IS_VEGA20_P(clk_mgr->base.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); + + /* Returns the dp_refclk that was set */ + return dce_clk_params.target_clock_frequency; +} + +static void dce112_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + 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_base, 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_base->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_base->clks.dispclk_khz)) { + patched_disp_clk = dce112_set_clock(clk_mgr_base, patched_disp_clk); + clk_mgr_base->clks.dispclk_khz = patched_disp_clk; + } + dce11_pplib_apply_display_requirements(clk_mgr_base->ctx->dc, context); +} + +static struct clk_mgr_funcs dce112_funcs = { + .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, + .update_clocks = dce112_update_clocks +}; + +void dce112_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr) +{ + dce_clk_mgr_construct(ctx, clk_mgr); + + memcpy(clk_mgr->max_clks_by_state, + dce112_max_clks_by_state, + sizeof(dce112_max_clks_by_state)); + + clk_mgr->regs = &disp_clk_regs; + clk_mgr->clk_mgr_shift = &disp_clk_shift; + clk_mgr->clk_mgr_mask = &disp_clk_mask; + clk_mgr->base.funcs = &dce112_funcs; +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h new file mode 100644 index 000000000000..dfb06db118e1 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h @@ -0,0 +1,39 @@ +/* + * 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 + * + */ + +#ifndef DAL_DC_DCE_DCE112_CLK_MGR_H_ +#define DAL_DC_DCE_DCE112_CLK_MGR_H_ + + +void dce112_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr); + +/* functions shared with other clk mgr */ +int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz); +int dce112_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_clk_khz); +int dce112_set_dprefclk(struct clk_mgr_internal *clk_mgr); + +#endif /* DAL_DC_DCE_DCE112_CLK_MGR_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.c new file mode 100644 index 000000000000..5399b8cf6b75 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.c @@ -0,0 +1,153 @@ +/* + * 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 "core_types.h" +#include "clk_mgr_internal.h" + +#include "dce112/dce112_clk_mgr.h" +#include "dce110/dce110_clk_mgr.h" +#include "dce120_clk_mgr.h" +#include "dce100/dce_clk_mgr.h" +#include "dce120/dce120_hw_sequencer.h" + +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 } }; + +/** + * dce121_clock_patch_xgmi_ss_info() - Save XGMI spread spectrum info + * @clk_mgr_dce: clock manager internal 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. + */ +static void dce121_clock_patch_xgmi_ss_info(struct clk_mgr_internal *clk_mgr_dce) +{ + 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; + } + } +} + +static void dce12_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct dm_pp_clock_for_voltage_req clock_voltage_req = {0}; + int max_pix_clk = dce_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_base->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 = dce_adjust_dp_ref_freq_for_ss( + clk_mgr_dce, patched_disp_clk); + clock_voltage_req.clocks_in_khz = patched_disp_clk; + clk_mgr_base->clks.dispclk_khz = dce112_set_clock(clk_mgr_base, patched_disp_clk); + + dm_pp_apply_clock_for_voltage_request(clk_mgr_base->ctx, &clock_voltage_req); + } + + if (should_set_clock(safe_to_lower, max_pix_clk, clk_mgr_base->clks.phyclk_khz)) { + clock_voltage_req.clk_type = DM_PP_CLOCK_TYPE_DISPLAYPHYCLK; + clock_voltage_req.clocks_in_khz = max_pix_clk; + clk_mgr_base->clks.phyclk_khz = max_pix_clk; + + dm_pp_apply_clock_for_voltage_request(clk_mgr_base->ctx, &clock_voltage_req); + } + dce11_pplib_apply_display_requirements(clk_mgr_base->ctx->dc, context); +} + + +static struct clk_mgr_funcs dce120_funcs = { + .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, + .update_clocks = dce12_update_clocks +}; + +void dce120_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr) +{ + dce_clk_mgr_construct(ctx, clk_mgr); + + memcpy(clk_mgr->max_clks_by_state, + dce120_max_clks_by_state, + sizeof(dce120_max_clks_by_state)); + + clk_mgr->base.dprefclk_khz = 600000; + clk_mgr->base.funcs = &dce120_funcs; +} + +void dce121_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr) +{ + dce120_clk_mgr_construct(ctx, clk_mgr); + clk_mgr->base.dprefclk_khz = 625000; + + /* + * The xGMI enabled info is used to determine if audio and display + * clocks need to be adjusted with the WAFL link's SS info. + */ + if (dce121_xgmi_enabled(ctx->dc->hwseq)) + dce121_clock_patch_xgmi_ss_info(clk_mgr); + +} + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.h new file mode 100644 index 000000000000..d12d6fcb167d --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce120/dce120_clk_mgr.h @@ -0,0 +1,34 @@ +/* + * 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 + * + */ + +#ifndef DAL_DC_DCE_DCE120_CLK_MGR_H_ +#define DAL_DC_DCE_DCE120_CLK_MGR_H_ + +void dce120_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr); +void dce121_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr); + + + +#endif /* DAL_DC_DCE_DCE120_CLK_MGR_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c new file mode 100644 index 000000000000..caf8a4a4e442 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c @@ -0,0 +1,279 @@ +/* + * 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 <linux/slab.h> + +#include "reg_helper.h" +#include "core_types.h" +#include "clk_mgr_internal.h" +#include "rv1_clk_mgr.h" +#include "dce100/dce_clk_mgr.h" +#include "dce112/dce112_clk_mgr.h" +#include "rv1_clk_mgr_vbios_smu.h" +#include "rv1_clk_mgr_clk.h" + +static int rv1_determine_dppclk_threshold(struct clk_mgr_internal *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->base.clks.dispclk_khz; + int disp_clk_threshold = new_clocks->max_supported_dppclk_khz; + bool cur_dpp_div = clk_mgr->base.clks.dispclk_khz > clk_mgr->base.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->base.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 ramp_up_dispclk_with_dpp(struct clk_mgr_internal *clk_mgr, struct dc *dc, struct dc_clocks *new_clocks) +{ + int i; + int dispclk_to_dpp_threshold = rv1_determine_dppclk_threshold(clk_mgr, new_clocks); + bool request_dpp_div = new_clocks->dispclk_khz > new_clocks->dppclk_khz; + + /* set disp clk to dpp clk threshold */ + + clk_mgr->funcs->set_dispclk(clk_mgr, dispclk_to_dpp_threshold); + clk_mgr->funcs->set_dprefclk(clk_mgr); + + + /* 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) { + clk_mgr->funcs->set_dispclk(clk_mgr, new_clocks->dispclk_khz); + clk_mgr->funcs->set_dprefclk(clk_mgr); + } + + + clk_mgr->base.clks.dispclk_khz = new_clocks->dispclk_khz; + clk_mgr->base.clks.dppclk_khz = new_clocks->dppclk_khz; + clk_mgr->base.clks.max_supported_dppclk_khz = new_clocks->max_supported_dppclk_khz; +} + +static void rv1_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct dc *dc = clk_mgr_base->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; + + ASSERT(clk_mgr->pp_smu); + + pp_smu = &clk_mgr->pp_smu->rv_funcs; + + display_count = clk_mgr_helper_get_active_display_cnt(dc, context); + + 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->set_display_count) + pp_smu->set_display_count(&pp_smu->pp_smu, display_count); + } + + if (new_clocks->dispclk_khz > clk_mgr_base->clks.dispclk_khz + || new_clocks->phyclk_khz > clk_mgr_base->clks.phyclk_khz + || new_clocks->fclk_khz > clk_mgr_base->clks.fclk_khz + || new_clocks->dcfclk_khz > clk_mgr_base->clks.dcfclk_khz) + send_request_to_increase = true; + + if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, clk_mgr_base->clks.phyclk_khz)) { + clk_mgr_base->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_base->clks.fclk_khz)) { + clk_mgr_base->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_base->clks.dcfclk_khz)) { + clk_mgr_base->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_base->clks.dcfclk_deep_sleep_khz)) { + clk_mgr_base->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->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_base->clks.dispclk_khz) + || new_clocks->dispclk_khz == clk_mgr_base->clks.dispclk_khz) { + ramp_up_dispclk_with_dpp(clk_mgr, dc, new_clocks); + clk_mgr_base->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->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 void rv1_enable_pme_wa(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct pp_smu_funcs_rv *pp_smu = NULL; + + if (clk_mgr->pp_smu) { + pp_smu = &clk_mgr->pp_smu->rv_funcs; + + if (pp_smu->set_pme_wa_enable) + pp_smu->set_pme_wa_enable(&pp_smu->pp_smu); + } +} + +static struct clk_mgr_funcs rv1_clk_funcs = { + .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, + .update_clocks = rv1_update_clocks, + .enable_pme_wa = rv1_enable_pme_wa, +}; + +static struct clk_mgr_internal_funcs rv1_clk_internal_funcs = { + .set_dispclk = rv1_vbios_smu_set_dispclk, + .set_dprefclk = dce112_set_dprefclk +}; + +void rv1_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr, struct pp_smu_funcs *pp_smu) +{ + struct dc_debug_options *debug = &ctx->dc->debug; + struct dc_bios *bp = ctx->dc_bios; + struct dc_firmware_info fw_info = { { 0 } }; + + clk_mgr->base.ctx = ctx; + clk_mgr->pp_smu = pp_smu; + clk_mgr->base.funcs = &rv1_clk_funcs; + clk_mgr->funcs = &rv1_clk_internal_funcs; + + clk_mgr->dfs_bypass_disp_clk = 0; + + clk_mgr->dprefclk_ss_percentage = 0; + clk_mgr->dprefclk_ss_divider = 1000; + clk_mgr->ss_on_dprefclk = false; + clk_mgr->base.dprefclk_khz = 600000; + + if (bp->integrated_info) + clk_mgr->dentist_vco_freq_khz = bp->integrated_info->dentist_vco_freq; + if (clk_mgr->dentist_vco_freq_khz == 0) { + bp->funcs->get_firmware_info(bp, &fw_info); + clk_mgr->dentist_vco_freq_khz = fw_info.smu_gpu_pll_output_freq; + if (clk_mgr->dentist_vco_freq_khz == 0) + clk_mgr->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->dfs_bypass_enabled = true; + + dce_clock_read_ss_info(clk_mgr); +} + + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.h new file mode 100644 index 000000000000..0807478c8212 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.h @@ -0,0 +1,31 @@ +/* + * 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 + * + */ + +#ifndef __RV1_CLK_MGR_H__ +#define __RV1_CLK_MGR_H__ + +void rv1_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr, struct pp_smu_funcs *pp_smu); + +#endif //__DCN10_CLK_MGR_H__ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.c new file mode 100644 index 000000000000..61dd12198a3c --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.c @@ -0,0 +1,79 @@ +/* + * 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 "reg_helper.h" +#include "clk_mgr_internal.h" +#include "rv1_clk_mgr_clk.h" + +#include "ip/Discovery/hwid.h" +#include "ip/Discovery/v1/ip_offset_1.h" +#include "ip/CLK/clk_10_0_default.h" +#include "ip/CLK/clk_10_0_offset.h" +#include "ip/CLK/clk_10_0_reg.h" +#include "ip/CLK/clk_10_0_sh_mask.h" + +#include "dce100/dce_clk_mgr.h" + +#define CLK_BASE_INNER(inst) \ + CLK_BASE__INST ## inst ## _SEG0 + + +#define CLK_REG(reg_name, block, inst)\ + CLK_BASE(mm ## block ## _ ## inst ## _ ## reg_name ## _BASE_IDX) + \ + mm ## block ## _ ## inst ## _ ## reg_name + +#define REG(reg_name) \ + CLK_REG(reg_name, CLK0, 0) + + +/* Only used by testing framework*/ +void rv1_dump_clk_registers(struct clk_state_registers *regs, struct clk_bypass *bypass, struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + regs->CLK0_CLK8_CURRENT_CNT = REG_READ(CLK0_CLK8_CURRENT_CNT) / 10; //dcf clk + + bypass->dcfclk_bypass = REG_READ(CLK0_CLK8_BYPASS_CNTL) & 0x0007; + if (bypass->dcfclk_bypass < 0 || bypass->dcfclk_bypass > 4) + bypass->dcfclk_bypass = 0; + + + regs->CLK0_CLK8_DS_CNTL = REG_READ(CLK0_CLK8_DS_CNTL) / 10; //dcf deep sleep divider + + regs->CLK0_CLK8_ALLOW_DS = REG_READ(CLK0_CLK8_ALLOW_DS); //dcf deep sleep allow + + regs->CLK0_CLK10_CURRENT_CNT = REG_READ(CLK0_CLK10_CURRENT_CNT) / 10; //dpref clk + + bypass->dispclk_pypass = REG_READ(CLK0_CLK10_BYPASS_CNTL) & 0x0007; + if (bypass->dispclk_pypass < 0 || bypass->dispclk_pypass > 4) + bypass->dispclk_pypass = 0; + + regs->CLK0_CLK11_CURRENT_CNT = REG_READ(CLK0_CLK11_CURRENT_CNT) / 10; //disp clk + + bypass->dprefclk_bypass = REG_READ(CLK0_CLK11_BYPASS_CNTL) & 0x0007; + if (bypass->dprefclk_bypass < 0 || bypass->dprefclk_bypass > 4) + bypass->dprefclk_bypass = 0; + +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.h new file mode 100644 index 000000000000..b68e3452efb9 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_clk.h @@ -0,0 +1,29 @@ +/* + * 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 + * + */ + +#ifndef DAL_DC_DCN10_RV1_CLK_MGR_CLK_H_ +#define DAL_DC_DCN10_RV1_CLK_MGR_CLK_H_ + +#endif /* DAL_DC_DCN10_RV1_CLK_MGR_CLK_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c new file mode 100644 index 000000000000..1897e91c8ccb --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c @@ -0,0 +1,126 @@ +/* + * 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 "core_types.h" +#include "clk_mgr_internal.h" +#include "reg_helper.h" + +#define MAX_INSTANCE 5 +#define MAX_SEGMENT 5 + +struct IP_BASE_INSTANCE { + unsigned int segment[MAX_SEGMENT]; +}; + +struct IP_BASE { + struct IP_BASE_INSTANCE instance[MAX_INSTANCE]; +}; + + +static const struct IP_BASE MP1_BASE = { { { { 0x00016000, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0 } } } }; + +#define mmMP1_SMN_C2PMSG_91 0x29B +#define mmMP1_SMN_C2PMSG_83 0x293 +#define mmMP1_SMN_C2PMSG_67 0x283 +#define mmMP1_SMN_C2PMSG_91_BASE_IDX 0 +#define mmMP1_SMN_C2PMSG_83_BASE_IDX 0 +#define mmMP1_SMN_C2PMSG_67_BASE_IDX 0 + +#define MP1_SMN_C2PMSG_91__CONTENT_MASK 0xffffffffL +#define MP1_SMN_C2PMSG_83__CONTENT_MASK 0xffffffffL +#define MP1_SMN_C2PMSG_67__CONTENT_MASK 0xffffffffL +#define MP1_SMN_C2PMSG_91__CONTENT__SHIFT 0x00000000 +#define MP1_SMN_C2PMSG_83__CONTENT__SHIFT 0x00000000 +#define MP1_SMN_C2PMSG_67__CONTENT__SHIFT 0x00000000 + +#define REG(reg_name) \ + (MP1_BASE.instance[0].segment[mm ## reg_name ## _BASE_IDX] + mm ## reg_name) + +#define FN(reg_name, field) \ + FD(reg_name##__##field) + +#define VBIOSSMC_MSG_SetDispclkFreq 0x4 +#define VBIOSSMC_MSG_SetDprefclkFreq 0x5 + +int rv1_vbios_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr, unsigned int msg_id, unsigned int param) +{ + /* First clear response register */ + REG_WRITE(MP1_SMN_C2PMSG_91, 0); + + /* Set the parameter register for the SMU message, unit is Mhz */ + REG_WRITE(MP1_SMN_C2PMSG_83, param); + + /* Trigger the message transaction by writing the message ID */ + REG_WRITE(MP1_SMN_C2PMSG_67, msg_id); + + REG_WAIT(MP1_SMN_C2PMSG_91, CONTENT, 1, 10, 200000); + + /* Actual dispclk set is returned in the parameter register */ + return REG_READ(MP1_SMN_C2PMSG_83); +} + +int rv1_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz) +{ + int actual_dispclk_set_mhz = -1; + struct dc *core_dc = clk_mgr->base.ctx->dc; + struct dmcu *dmcu = core_dc->res_pool->dmcu; + + /* Unit of SMU msg parameter is Mhz */ + actual_dispclk_set_mhz = rv1_vbios_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDispclkFreq, + requested_dispclk_khz / 1000); + + /* Actual dispclk set is returned in the parameter register */ + actual_dispclk_set_mhz = REG_READ(MP1_SMN_C2PMSG_83) * 1000; + + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { + if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { + if (clk_mgr->dfs_bypass_disp_clk != actual_dispclk_set_mhz) + dmcu->funcs->set_psr_wait_loop(dmcu, + actual_dispclk_set_mhz / 7); + } + } + + return actual_dispclk_set_mhz * 1000; +} + +int rv1_vbios_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr) +{ + int actual_dprefclk_set_mhz = -1; + + actual_dprefclk_set_mhz = rv1_vbios_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDprefclkFreq, + clk_mgr->base.dprefclk_khz / 1000); + + /* TODO: add code for programing DP DTO, currently this is down by command table */ + + return actual_dprefclk_set_mhz * 1000; +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.h new file mode 100644 index 000000000000..083cb3158859 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.h @@ -0,0 +1,32 @@ +/* + * 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 + * + */ + +#ifndef DAL_DC_DCN10_RV1_CLK_MGR_VBIOS_SMU_H_ +#define DAL_DC_DCN10_RV1_CLK_MGR_VBIOS_SMU_H_ + +int rv1_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz); +int rv1_vbios_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr); + +#endif /* DAL_DC_DCN10_RV1_CLK_MGR_VBIOS_SMU_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.c new file mode 100644 index 000000000000..b9ba6dbc2b46 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.c @@ -0,0 +1,43 @@ +/* + * 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 "core_types.h" +#include "clk_mgr_internal.h" +#include "rv1_clk_mgr.h" +#include "rv2_clk_mgr.h" +#include "dce112/dce112_clk_mgr.h" + +static struct clk_mgr_internal_funcs rv2_clk_internal_funcs = { + .set_dispclk = dce112_set_dispclk, + .set_dprefclk = dce112_set_dprefclk +}; + +void rv2_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr, struct pp_smu_funcs *pp_smu) + +{ + rv1_clk_mgr_construct(ctx, clk_mgr, pp_smu); + + clk_mgr->funcs = &rv2_clk_internal_funcs; +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.h new file mode 100644 index 000000000000..0c1f26ca563b --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv2_clk_mgr.h @@ -0,0 +1,32 @@ +/* + * 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 + * + */ + +#ifndef __RV2_CLK_MGR_H__ +#define __RV2_CLK_MGR_H__ + +void rv2_clk_mgr_construct(struct dc_context *ctx, struct clk_mgr_internal *clk_mgr, struct pp_smu_funcs *pp_smu); + + +#endif //__DCN10_CLK_MGR_H__ 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 new file mode 100644 index 000000000000..50bfb5921de0 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c @@ -0,0 +1,394 @@ +/* + * 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 "dccg.h" +#include "clk_mgr_internal.h" + + +#include "dcn20/dcn20_clk_mgr.h" +#include "dce100/dce_clk_mgr.h" +#include "reg_helper.h" +#include "core_types.h" +#include "dm_helpers.h" + +#include "navi10_ip_offset.h" +#include "dcn/dcn_2_0_0_offset.h" +#include "dcn/dcn_2_0_0_sh_mask.h" +#include "clk/clk_11_0_0_offset.h" +#include "clk/clk_11_0_0_sh_mask.h" + +#undef FN +#define FN(reg_name, field_name) \ + clk_mgr->clk_mgr_shift->field_name, clk_mgr->clk_mgr_mask->field_name + +#define REG(reg) \ + (clk_mgr->regs->reg) + +#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg + +#define BASE(seg) BASE_INNER(seg) + +#define SR(reg_name)\ + .reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \ + mm ## reg_name + +#define CLK_BASE_INNER(seg) \ + CLK_BASE__INST0_SEG ## seg + + +static const struct clk_mgr_registers clk_mgr_regs = { + CLK_REG_LIST_NV10() +}; + +static const struct clk_mgr_shift clk_mgr_shift = { + CLK_MASK_SH_LIST_NV10(__SHIFT) +}; + +static const struct clk_mgr_mask clk_mgr_mask = { + CLK_MASK_SH_LIST_NV10(_MASK) +}; + +uint32_t dentist_get_did_from_divider(int divider) +{ + uint32_t divider_id; + + /* we want to floor here to get higher clock than required rather than lower */ + if (divider < DENTIST_DIVIDER_RANGE_2_START) { + if (divider < DENTIST_DIVIDER_RANGE_1_START) + divider_id = DENTIST_BASE_DID_1; + else + divider_id = DENTIST_BASE_DID_1 + + (divider - DENTIST_DIVIDER_RANGE_1_START) + / DENTIST_DIVIDER_RANGE_1_STEP; + } else if (divider < DENTIST_DIVIDER_RANGE_3_START) { + divider_id = DENTIST_BASE_DID_2 + + (divider - DENTIST_DIVIDER_RANGE_2_START) + / DENTIST_DIVIDER_RANGE_2_STEP; + } else if (divider < DENTIST_DIVIDER_RANGE_4_START) { + divider_id = DENTIST_BASE_DID_3 + + (divider - DENTIST_DIVIDER_RANGE_3_START) + / DENTIST_DIVIDER_RANGE_3_STEP; + } else { + divider_id = DENTIST_BASE_DID_4 + + (divider - DENTIST_DIVIDER_RANGE_4_START) + / DENTIST_DIVIDER_RANGE_4_STEP; + if (divider_id > DENTIST_MAX_DID) + divider_id = DENTIST_MAX_DID; + } + + return divider_id; +} + +void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, + struct dc_state *context) +{ + 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; + + if (!context->res_ctx.pipe_ctx[i].plane_state) + continue; + + 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); + } +} + +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 / clk_mgr->base.clks.dppclk_khz; + int disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR + * 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); +} + + +void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk; + 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; + + display_count = clk_mgr_helper_get_active_display_cnt(dc, context); + if (dc->res_pool->pp_smu) + pp_smu = &dc->res_pool->pp_smu->nv_funcs; + + if (display_count == 0) + enter_display_off = true; + + if (enter_display_off == safe_to_lower) { + if (pp_smu && pp_smu->set_display_count) + pp_smu->set_display_count(&pp_smu->pp_smu, display_count); + } + + if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, clk_mgr_base->clks.phyclk_khz)) { + clk_mgr_base->clks.phyclk_khz = new_clocks->phyclk_khz; + if (pp_smu && pp_smu->set_voltage_by_freq) + pp_smu->set_voltage_by_freq(&pp_smu->pp_smu, PP_SMU_NV_PHYCLK, clk_mgr_base->clks.phyclk_khz / 1000); + } + + if (dc->debug.force_min_dcfclk_mhz > 0) + new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ? + new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000); + + if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz)) { + clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz; + if (pp_smu && pp_smu->set_hard_min_dcfclk_by_freq) + pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, clk_mgr_base->clks.dcfclk_khz / 1000); + } + + if (should_set_clock(safe_to_lower, + new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz)) { + clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; + if (pp_smu && pp_smu->set_min_deep_sleep_dcfclk) + pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, clk_mgr_base->clks.dcfclk_deep_sleep_khz / 1000); + } + + if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr_base->clks.socclk_khz)) { + clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz; + if (pp_smu && pp_smu->set_hard_min_socclk_by_freq) + pp_smu->set_hard_min_socclk_by_freq(&pp_smu->pp_smu, clk_mgr_base->clks.socclk_khz / 1000); + } + + 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.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); + } + + 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; + if (pp_smu && pp_smu->set_hard_min_uclk_by_freq) + pp_smu->set_hard_min_uclk_by_freq(&pp_smu->pp_smu, clk_mgr_base->clks.dramclk_khz / 1000); + } + + 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; + + 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); + + update_dppclk = true; + } + + 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); + + update_dispclk = true; + } + if (dc->config.forced_clocks == false) { + 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 && + dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { + /*update dmcu for wait_loop count*/ + dmcu->funcs->set_psr_wait_loop(dmcu, + clk_mgr_base->clks.dispclk_khz / 1000 / 7); + } +} + +void dcn2_update_clocks_fpga(struct clk_mgr *clk_mgr, + struct dc_state *context, + bool safe_to_lower) +{ + struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk; + /* Min fclk = 1.2GHz since all the extra scemi logic seems to run off of it */ + int fclk_adj = new_clocks->fclk_khz > 1200000 ? new_clocks->fclk_khz : 1200000; + + 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; + } + + 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; + } + + 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; + } + + if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr->clks.socclk_khz)) { + clk_mgr->clks.socclk_khz = new_clocks->socclk_khz; + } + + if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr->clks.dramclk_khz)) { + clk_mgr->clks.dramclk_khz = new_clocks->dramclk_khz; + } + + if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->clks.dppclk_khz)) { + clk_mgr->clks.dppclk_khz = new_clocks->dppclk_khz; + } + + if (should_set_clock(safe_to_lower, fclk_adj, clk_mgr->clks.fclk_khz)) { + clk_mgr->clks.fclk_khz = fclk_adj; + } + + if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr->clks.dispclk_khz)) { + clk_mgr->clks.dispclk_khz = new_clocks->dispclk_khz; + } + + /* Both fclk and dppclk ref are run on the same scemi clock so we + * need to keep the same value for both + */ + if (clk_mgr->clks.fclk_khz > clk_mgr->clks.dppclk_khz) + clk_mgr->clks.dppclk_khz = clk_mgr->clks.fclk_khz; + if (clk_mgr->clks.dppclk_khz > clk_mgr->clks.fclk_khz) + clk_mgr->clks.fclk_khz = clk_mgr->clks.dppclk_khz; + + dm_set_dcn_clocks(clk_mgr->ctx, &clk_mgr->clks); +} + +void dcn2_init_clocks(struct clk_mgr *clk_mgr) +{ + memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks)); + // Assumption is that boot state always supports pstate + clk_mgr->clks.p_state_change_support = true; +} + +void dcn2_enable_pme_wa(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct pp_smu_funcs_nv *pp_smu = NULL; + + if (clk_mgr->pp_smu) { + pp_smu = &clk_mgr->pp_smu->nv_funcs; + + if (pp_smu->set_pme_wa_enable) + pp_smu->set_pme_wa_enable(&pp_smu->pp_smu); + } +} + +static struct clk_mgr_funcs dcn2_funcs = { + .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, + .update_clocks = dcn2_update_clocks, + .init_clocks = dcn2_init_clocks, + .enable_pme_wa = dcn2_enable_pme_wa +}; + + +void dcn20_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr, + struct pp_smu_funcs *pp_smu, + struct dccg *dccg) +{ + clk_mgr->base.ctx = ctx; + clk_mgr->pp_smu = pp_smu; + clk_mgr->base.funcs = &dcn2_funcs; + clk_mgr->regs = &clk_mgr_regs; + clk_mgr->clk_mgr_shift = &clk_mgr_shift; + clk_mgr->clk_mgr_mask = &clk_mgr_mask; + + clk_mgr->dccg = dccg; + clk_mgr->dfs_bypass_disp_clk = 0; + + clk_mgr->dprefclk_ss_percentage = 0; + clk_mgr->dprefclk_ss_divider = 1000; + clk_mgr->ss_on_dprefclk = false; + + clk_mgr->base.dprefclk_khz = 700000; // 700 MHz planned if VCO is 3.85 GHz, will be retrieved + + if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) { + dcn2_funcs.update_clocks = dcn2_update_clocks_fpga; + clk_mgr->dentist_vco_freq_khz = 3850000; + + } else { + /* DFS Slice 2 should be used for DPREFCLK */ + int dprefclk_did = REG_READ(CLK3_CLK2_DFS_CNTL); + /* Convert DPREFCLK DFS Slice DID to actual divider*/ + int target_div = dentist_get_divider_from_did(dprefclk_did); + + /* get FbMult value */ + uint32_t pll_req_reg = REG_READ(CLK3_CLK_PLL_REQ); + struct fixed31_32 pll_req; + + /* set up a fixed-point number + * this works because the int part is on the right edge of the register + * and the frac part is on the left edge + */ + + pll_req = dc_fixpt_from_int(pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_int); + pll_req.value |= pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_frac; + + /* multiply by REFCLK period */ + pll_req = dc_fixpt_mul_int(pll_req, 100000); + + /* integer part is now VCO frequency in kHz */ + clk_mgr->dentist_vco_freq_khz = dc_fixpt_floor(pll_req); + + /* in case we don't get a value from the register, use default */ + if (clk_mgr->dentist_vco_freq_khz == 0) + clk_mgr->dentist_vco_freq_khz = 3850000; + + /* Calculate the DPREFCLK in kHz.*/ + clk_mgr->base.dprefclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR + * clk_mgr->dentist_vco_freq_khz) / target_div; + } + //Integrated_info table does not exist on dGPU projects so should not be referenced + //anywhere in code for dGPUs. + //Also there is no plan for now that DFS BYPASS will be used on NV10/12/14. + clk_mgr->dfs_bypass_enabled = false; + + dce_clock_read_ss_info(clk_mgr); +} + diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h new file mode 100644 index 000000000000..5661a5a89847 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h @@ -0,0 +1,48 @@ +/* + * 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 + * + */ + +#ifndef __DCN20_CLK_MGR_H__ +#define __DCN20_CLK_MGR_H__ + +void dcn2_update_clocks(struct clk_mgr *dccg, + struct dc_state *context, + bool safe_to_lower); + +void dcn2_update_clocks_fpga(struct clk_mgr *clk_mgr, + struct dc_state *context, + bool safe_to_lower); +void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, + struct dc_state *context); + +void dcn2_init_clocks(struct clk_mgr *clk_mgr); + +void dcn20_clk_mgr_construct(struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr, + struct pp_smu_funcs *pp_smu, + struct dccg *dccg); + +uint32_t dentist_get_did_from_divider(int divider); + +#endif //__DCN20_CLK_MGR_H__ |