| /* |
| * Copyright 2021 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 "dcn32/dcn32_clk_mgr_smu_msg.h" |
| #include "dcn20/dcn20_clk_mgr.h" |
| #include "dce100/dce_clk_mgr.h" |
| #include "dcn31/dcn31_clk_mgr.h" |
| #include "reg_helper.h" |
| #include "core_types.h" |
| #include "dm_helpers.h" |
| #include "dc_link_dp.h" |
| |
| #include "atomfirmware.h" |
| #include "smu13_driver_if.h" |
| |
| #include "dcn/dcn_3_2_0_offset.h" |
| #include "dcn/dcn_3_2_0_sh_mask.h" |
| |
| #include "dcn32/dcn32_clk_mgr.h" |
| #include "dml/dcn32/dcn32_fpu.h" |
| |
| #define DCN_BASE__INST0_SEG1 0x000000C0 |
| |
| #define mmCLK1_CLK_PLL_REQ 0x16E37 |
| #define mmCLK1_CLK0_DFS_CNTL 0x16E69 |
| #define mmCLK1_CLK1_DFS_CNTL 0x16E6C |
| #define mmCLK1_CLK2_DFS_CNTL 0x16E6F |
| #define mmCLK1_CLK3_DFS_CNTL 0x16E72 |
| #define mmCLK1_CLK4_DFS_CNTL 0x16E75 |
| |
| #define CLK1_CLK_PLL_REQ__FbMult_int_MASK 0x000001ffUL |
| #define CLK1_CLK_PLL_REQ__PllSpineDiv_MASK 0x0000f000UL |
| #define CLK1_CLK_PLL_REQ__FbMult_frac_MASK 0xffff0000UL |
| #define CLK1_CLK_PLL_REQ__FbMult_int__SHIFT 0x00000000 |
| #define CLK1_CLK_PLL_REQ__PllSpineDiv__SHIFT 0x0000000c |
| #define CLK1_CLK_PLL_REQ__FbMult_frac__SHIFT 0x00000010 |
| |
| #define mmCLK01_CLK0_CLK_PLL_REQ 0x16E37 |
| #define mmCLK01_CLK0_CLK0_DFS_CNTL 0x16E64 |
| #define mmCLK01_CLK0_CLK1_DFS_CNTL 0x16E67 |
| #define mmCLK01_CLK0_CLK2_DFS_CNTL 0x16E6A |
| #define mmCLK01_CLK0_CLK3_DFS_CNTL 0x16E6D |
| #define mmCLK01_CLK0_CLK4_DFS_CNTL 0x16E70 |
| |
| #define CLK0_CLK_PLL_REQ__FbMult_int_MASK 0x000001ffL |
| #define CLK0_CLK_PLL_REQ__PllSpineDiv_MASK 0x0000f000L |
| #define CLK0_CLK_PLL_REQ__FbMult_frac_MASK 0xffff0000L |
| #define CLK0_CLK_PLL_REQ__FbMult_int__SHIFT 0x00000000 |
| #define CLK0_CLK_PLL_REQ__PllSpineDiv__SHIFT 0x0000000c |
| #define CLK0_CLK_PLL_REQ__FbMult_frac__SHIFT 0x00000010 |
| |
| #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(reg ## reg_name ## _BASE_IDX) + \ |
| reg ## reg_name |
| |
| #define CLK_SR_DCN32(reg_name)\ |
| .reg_name = mm ## reg_name |
| |
| static const struct clk_mgr_registers clk_mgr_regs_dcn32 = { |
| CLK_REG_LIST_DCN32() |
| }; |
| |
| static const struct clk_mgr_shift clk_mgr_shift_dcn32 = { |
| CLK_COMMON_MASK_SH_LIST_DCN32(__SHIFT) |
| }; |
| |
| static const struct clk_mgr_mask clk_mgr_mask_dcn32 = { |
| CLK_COMMON_MASK_SH_LIST_DCN32(_MASK) |
| }; |
| |
| |
| #define CLK_SR_DCN321(reg_name, block, inst)\ |
| .reg_name = mm ## block ## _ ## reg_name |
| |
| static const struct clk_mgr_registers clk_mgr_regs_dcn321 = { |
| CLK_REG_LIST_DCN321() |
| }; |
| |
| static const struct clk_mgr_shift clk_mgr_shift_dcn321 = { |
| CLK_COMMON_MASK_SH_LIST_DCN321(__SHIFT) |
| }; |
| |
| static const struct clk_mgr_mask clk_mgr_mask_dcn321 = { |
| CLK_COMMON_MASK_SH_LIST_DCN321(_MASK) |
| }; |
| |
| |
| /* Query SMU for all clock states for a particular clock */ |
| static void dcn32_init_single_clock(struct clk_mgr_internal *clk_mgr, PPCLK_e clk, unsigned int *entry_0, |
| unsigned int *num_levels) |
| { |
| unsigned int i; |
| char *entry_i = (char *)entry_0; |
| |
| uint32_t ret = dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, 0xFF); |
| |
| if (ret & (1 << 31)) |
| /* fine-grained, only min and max */ |
| *num_levels = 2; |
| else |
| /* discrete, a number of fixed states */ |
| /* will set num_levels to 0 on failure */ |
| *num_levels = ret & 0xFF; |
| |
| /* if the initial message failed, num_levels will be 0 */ |
| for (i = 0; i < *num_levels; i++) { |
| *((unsigned int *)entry_i) = (dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, i) & 0xFFFF); |
| entry_i += sizeof(clk_mgr->base.bw_params->clk_table.entries[0]); |
| } |
| } |
| |
| static void dcn32_build_wm_range_table(struct clk_mgr_internal *clk_mgr) |
| { |
| DC_FP_START(); |
| dcn32_build_wm_range_table_fpu(clk_mgr); |
| DC_FP_END(); |
| } |
| |
| void dcn32_init_clocks(struct clk_mgr *clk_mgr_base) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| unsigned int num_levels; |
| struct clk_limit_num_entries *num_entries_per_clk = &clk_mgr_base->bw_params->clk_table.num_entries_per_clk; |
| unsigned int i; |
| |
| memset(&(clk_mgr_base->clks), 0, sizeof(struct dc_clocks)); |
| clk_mgr_base->clks.p_state_change_support = true; |
| clk_mgr_base->clks.prev_p_state_change_support = true; |
| clk_mgr_base->clks.fclk_prev_p_state_change_support = true; |
| clk_mgr->smu_present = false; |
| clk_mgr->dpm_present = false; |
| |
| if (!clk_mgr_base->bw_params) |
| return; |
| |
| if (!clk_mgr_base->force_smu_not_present && dcn30_smu_get_smu_version(clk_mgr, &clk_mgr->smu_ver)) |
| clk_mgr->smu_present = true; |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| dcn30_smu_check_driver_if_version(clk_mgr); |
| dcn30_smu_check_msg_header_version(clk_mgr); |
| |
| /* DCFCLK */ |
| dcn32_init_single_clock(clk_mgr, PPCLK_DCFCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].dcfclk_mhz, |
| &num_entries_per_clk->num_dcfclk_levels); |
| |
| /* SOCCLK */ |
| dcn32_init_single_clock(clk_mgr, PPCLK_SOCCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].socclk_mhz, |
| &num_entries_per_clk->num_socclk_levels); |
| |
| /* DTBCLK */ |
| if (!clk_mgr->base.ctx->dc->debug.disable_dtb_ref_clk_switch) |
| dcn32_init_single_clock(clk_mgr, PPCLK_DTBCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz, |
| &num_entries_per_clk->num_dtbclk_levels); |
| |
| /* DISPCLK */ |
| dcn32_init_single_clock(clk_mgr, PPCLK_DISPCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].dispclk_mhz, |
| &num_entries_per_clk->num_dispclk_levels); |
| num_levels = num_entries_per_clk->num_dispclk_levels; |
| |
| if (num_entries_per_clk->num_dcfclk_levels && |
| num_entries_per_clk->num_dtbclk_levels && |
| num_entries_per_clk->num_dispclk_levels) |
| clk_mgr->dpm_present = true; |
| |
| if (clk_mgr_base->ctx->dc->debug.min_disp_clk_khz) { |
| for (i = 0; i < num_levels; i++) |
| if (clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz |
| < khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz)) |
| clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz |
| = khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz); |
| } |
| for (i = 0; i < num_levels; i++) |
| if (clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz > 1950) |
| clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz = 1950; |
| |
| if (clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz) { |
| for (i = 0; i < num_levels; i++) |
| if (clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz |
| < khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz)) |
| clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz |
| = khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz); |
| } |
| |
| /* Get UCLK, update bounding box */ |
| clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base); |
| |
| DC_FP_START(); |
| /* WM range table */ |
| dcn32_build_wm_range_table(clk_mgr); |
| DC_FP_END(); |
| } |
| |
| /* Since DPPCLK request to PMFW needs to be exact (due to DPP DTO programming), |
| * update DPPCLK to be the exact frequency that will be set after the DPPCLK |
| * divider is updated. This will prevent rounding issues that could cause DPP |
| * refclk and DPP DTO to not match up. |
| */ |
| static void dcn32_update_dppclk_dispclk_freq(struct clk_mgr_internal *clk_mgr, struct dc_clocks *new_clocks) |
| { |
| int dpp_divider = 0; |
| int disp_divider = 0; |
| |
| if (new_clocks->dppclk_khz) { |
| dpp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz / new_clocks->dppclk_khz; |
| new_clocks->dppclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / dpp_divider; |
| } |
| if (new_clocks->dispclk_khz > 0) { |
| disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz / new_clocks->dispclk_khz; |
| new_clocks->dispclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / disp_divider; |
| } |
| } |
| |
| static void dcn32_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; |
| int display_count; |
| bool update_dppclk = false; |
| bool update_dispclk = false; |
| bool enter_display_off = false; |
| bool dpp_clock_lowered = false; |
| struct dmcu *dmcu = clk_mgr_base->ctx->dc->res_pool->dmcu; |
| bool force_reset = false; |
| bool update_uclk = false, update_fclk = false; |
| bool p_state_change_support; |
| bool fclk_p_state_change_support; |
| int total_plane_count; |
| |
| if (dc->work_arounds.skip_clock_update) |
| return; |
| |
| if (clk_mgr_base->clks.dispclk_khz == 0 || |
| (dc->debug.force_clock_mode & 0x1)) { |
| /* This is from resume or boot up, if forced_clock cfg option used, |
| * we bypass program dispclk and DPPCLK, but need set them for S3. |
| */ |
| force_reset = true; |
| |
| dcn2_read_clocks_from_hw_dentist(clk_mgr_base); |
| |
| /* Force_clock_mode 0x1: force reset the clock even it is the same clock |
| * as long as it is in Passive level. |
| */ |
| } |
| display_count = clk_mgr_helper_get_active_display_cnt(dc, context); |
| |
| if (display_count == 0) |
| enter_display_off = true; |
| |
| if (clk_mgr->smu_present) { |
| if (enter_display_off == safe_to_lower) |
| dcn30_smu_set_num_of_displays(clk_mgr, display_count); |
| |
| clk_mgr_base->clks.fclk_prev_p_state_change_support = clk_mgr_base->clks.fclk_p_state_change_support; |
| |
| total_plane_count = clk_mgr_helper_get_active_plane_cnt(dc, context); |
| fclk_p_state_change_support = new_clocks->fclk_p_state_change_support || (total_plane_count == 0); |
| |
| if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support)) { |
| clk_mgr_base->clks.fclk_p_state_change_support = fclk_p_state_change_support; |
| |
| /* To enable FCLK P-state switching, send FCLK_PSTATE_SUPPORTED message to PMFW */ |
| if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && clk_mgr_base->clks.fclk_p_state_change_support) { |
| /* Handle the code for sending a message to PMFW that FCLK P-state change is supported */ |
| dcn32_smu_send_fclk_pstate_message(clk_mgr, FCLK_PSTATE_SUPPORTED); |
| } |
| } |
| |
| 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; |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DCFCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_khz)); |
| } |
| |
| 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; |
| dcn30_smu_set_min_deep_sleep_dcef_clk(clk_mgr, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_deep_sleep_khz)); |
| } |
| |
| if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr_base->clks.socclk_khz)) |
| /* We don't actually care about socclk, don't notify SMU of hard min */ |
| clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz; |
| |
| clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; |
| clk_mgr_base->clks.prev_num_ways = clk_mgr_base->clks.num_ways; |
| |
| if (clk_mgr_base->clks.num_ways != new_clocks->num_ways && |
| clk_mgr_base->clks.num_ways < new_clocks->num_ways) { |
| clk_mgr_base->clks.num_ways = new_clocks->num_ways; |
| dcn32_smu_send_cab_for_uclk_message(clk_mgr, clk_mgr_base->clks.num_ways); |
| } |
| |
| |
| p_state_change_support = new_clocks->p_state_change_support || (total_plane_count == 0); |
| if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support)) { |
| clk_mgr_base->clks.p_state_change_support = p_state_change_support; |
| |
| /* to disable P-State switching, set UCLK min = max */ |
| if (!clk_mgr_base->clks.p_state_change_support) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, |
| clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries_per_clk.num_memclk_levels - 1].memclk_mhz); |
| } |
| |
| /* Always update saved value, even if new value not set due to P-State switching unsupported. Also check safe_to_lower for FCLK */ |
| if (safe_to_lower && (clk_mgr_base->clks.fclk_p_state_change_support != clk_mgr_base->clks.fclk_prev_p_state_change_support)) { |
| update_fclk = true; |
| } |
| |
| if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && !clk_mgr_base->clks.fclk_p_state_change_support && update_fclk) { |
| /* Handle code for sending a message to PMFW that FCLK P-state change is not supported */ |
| dcn32_smu_send_fclk_pstate_message(clk_mgr, FCLK_PSTATE_NOTSUPPORTED); |
| } |
| |
| /* Always update saved value, even if new value not set due to P-State switching unsupported */ |
| 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; |
| update_uclk = true; |
| } |
| |
| /* set UCLK to requested value if P-State switching is supported, or to re-enable P-State switching */ |
| if (clk_mgr_base->clks.p_state_change_support && |
| (update_uclk || !clk_mgr_base->clks.prev_p_state_change_support)) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz)); |
| |
| if (clk_mgr_base->clks.num_ways != new_clocks->num_ways && |
| clk_mgr_base->clks.num_ways > new_clocks->num_ways) { |
| clk_mgr_base->clks.num_ways = new_clocks->num_ways; |
| dcn32_smu_send_cab_for_uclk_message(clk_mgr, clk_mgr_base->clks.num_ways); |
| } |
| } |
| |
| dcn32_update_dppclk_dispclk_freq(clk_mgr, new_clocks); |
| 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 (clk_mgr->smu_present && !dpp_clock_lowered) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); |
| |
| 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 (clk_mgr->smu_present) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dispclk_khz)); |
| |
| update_dispclk = true; |
| } |
| |
| if (!new_clocks->dtbclk_en) { |
| new_clocks->ref_dtbclk_khz = clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz * 1000; |
| } |
| |
| /* clock limits are received with MHz precision, divide by 1000 to prevent setting clocks at every call */ |
| if (!dc->debug.disable_dtb_ref_clk_switch && |
| should_set_clock(safe_to_lower, new_clocks->ref_dtbclk_khz / 1000, clk_mgr_base->clks.ref_dtbclk_khz / 1000)) { |
| /* DCCG requires KHz precision for DTBCLK */ |
| clk_mgr_base->clks.ref_dtbclk_khz = |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DTBCLK, khz_to_mhz_ceil(new_clocks->ref_dtbclk_khz)); |
| } |
| |
| if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) { |
| if (dpp_clock_lowered) { |
| /* if clock is being lowered, increase DTO before lowering refclk */ |
| dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); |
| dcn20_update_clocks_update_dentist(clk_mgr, context); |
| if (clk_mgr->smu_present) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); |
| } else { |
| /* if clock is being raised, increase refclk before lowering DTO */ |
| if (update_dppclk || update_dispclk) |
| dcn20_update_clocks_update_dentist(clk_mgr, context); |
| /* There is a check inside dcn20_update_clocks_update_dpp_dto which ensures |
| * that we do not lower dto when it is not safe to lower. We do not need to |
| * compare the current and new dppclk before calling this function. |
| */ |
| dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); |
| } |
| } |
| |
| 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); |
| } |
| |
| static uint32_t dcn32_get_vco_frequency_from_reg(struct clk_mgr_internal *clk_mgr) |
| { |
| struct fixed31_32 pll_req; |
| uint32_t pll_req_reg = 0; |
| |
| /* get FbMult value */ |
| if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) |
| pll_req_reg = REG_READ(CLK0_CLK_PLL_REQ); |
| else |
| pll_req_reg = REG_READ(CLK1_CLK_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, clk_mgr->dfs_ref_freq_khz); |
| |
| return dc_fixpt_floor(pll_req); |
| } |
| |
| static void dcn32_dump_clk_registers(struct clk_state_registers_and_bypass *regs_and_bypass, |
| struct clk_mgr *clk_mgr_base, struct clk_log_info *log_info) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| uint32_t dprefclk_did = 0; |
| uint32_t dcfclk_did = 0; |
| uint32_t dtbclk_did = 0; |
| uint32_t dispclk_did = 0; |
| uint32_t dppclk_did = 0; |
| uint32_t target_div = 0; |
| |
| if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) { |
| /* DFS Slice 0 is used for DISPCLK */ |
| dispclk_did = REG_READ(CLK0_CLK0_DFS_CNTL); |
| /* DFS Slice 1 is used for DPPCLK */ |
| dppclk_did = REG_READ(CLK0_CLK1_DFS_CNTL); |
| /* DFS Slice 2 is used for DPREFCLK */ |
| dprefclk_did = REG_READ(CLK0_CLK2_DFS_CNTL); |
| /* DFS Slice 3 is used for DCFCLK */ |
| dcfclk_did = REG_READ(CLK0_CLK3_DFS_CNTL); |
| /* DFS Slice 4 is used for DTBCLK */ |
| dtbclk_did = REG_READ(CLK0_CLK4_DFS_CNTL); |
| } else { |
| /* DFS Slice 0 is used for DISPCLK */ |
| dispclk_did = REG_READ(CLK1_CLK0_DFS_CNTL); |
| /* DFS Slice 1 is used for DPPCLK */ |
| dppclk_did = REG_READ(CLK1_CLK1_DFS_CNTL); |
| /* DFS Slice 2 is used for DPREFCLK */ |
| dprefclk_did = REG_READ(CLK1_CLK2_DFS_CNTL); |
| /* DFS Slice 3 is used for DCFCLK */ |
| dcfclk_did = REG_READ(CLK1_CLK3_DFS_CNTL); |
| /* DFS Slice 4 is used for DTBCLK */ |
| dtbclk_did = REG_READ(CLK1_CLK4_DFS_CNTL); |
| } |
| |
| /* Convert DISPCLK DFS Slice DID to divider*/ |
| target_div = dentist_get_divider_from_did(dispclk_did); |
| //Get dispclk in khz |
| regs_and_bypass->dispclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz) / target_div; |
| |
| /* Convert DISPCLK DFS Slice DID to divider*/ |
| target_div = dentist_get_divider_from_did(dppclk_did); |
| //Get dppclk in khz |
| regs_and_bypass->dppclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz) / target_div; |
| |
| /* Convert DPREFCLK DFS Slice DID to divider*/ |
| target_div = dentist_get_divider_from_did(dprefclk_did); |
| //Get dprefclk in khz |
| regs_and_bypass->dprefclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz) / target_div; |
| |
| /* Convert DCFCLK DFS Slice DID to divider*/ |
| target_div = dentist_get_divider_from_did(dcfclk_did); |
| //Get dcfclk in khz |
| regs_and_bypass->dcfclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz) / target_div; |
| |
| /* Convert DTBCLK DFS Slice DID to divider*/ |
| target_div = dentist_get_divider_from_did(dtbclk_did); |
| //Get dtbclk in khz |
| regs_and_bypass->dtbclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR |
| * clk_mgr->base.dentist_vco_freq_khz) / target_div; |
| } |
| |
| static void dcn32_clock_read_ss_info(struct clk_mgr_internal *clk_mgr) |
| { |
| struct dc_bios *bp = clk_mgr->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); |
| |
| /* SSInfo.spreadSpectrumPercentage !=0 would be sign |
| * that SS is enabled |
| */ |
| if (result == BP_RESULT_OK && |
| info.spread_spectrum_percentage != 0) { |
| clk_mgr->ss_on_dprefclk = true; |
| clk_mgr->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->dprefclk_ss_percentage = |
| info.spread_spectrum_percentage; |
| } |
| } |
| } |
| } |
| static void dcn32_notify_wm_ranges(struct clk_mgr *clk_mgr_base) |
| { |
| unsigned int i; |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| WatermarksExternal_t *table = (WatermarksExternal_t *) clk_mgr->wm_range_table; |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| if (!table) |
| return; |
| |
| memset(table, 0, sizeof(*table)); |
| |
| /* collect valid ranges, place in pmfw table */ |
| for (i = 0; i < WM_SET_COUNT; i++) |
| if (clk_mgr->base.bw_params->wm_table.nv_entries[i].valid) { |
| table->Watermarks.WatermarkRow[i].WmSetting = i; |
| table->Watermarks.WatermarkRow[i].Flags = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.wm_type; |
| } |
| dcn30_smu_set_dram_addr_high(clk_mgr, clk_mgr->wm_range_table_addr >> 32); |
| dcn30_smu_set_dram_addr_low(clk_mgr, clk_mgr->wm_range_table_addr & 0xFFFFFFFF); |
| dcn32_smu_transfer_wm_table_dram_2_smu(clk_mgr); |
| } |
| |
| /* Set min memclk to minimum, either constrained by the current mode or DPM0 */ |
| static void dcn32_set_hard_min_memclk(struct clk_mgr *clk_mgr_base, bool current_mode) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| if (current_mode) { |
| if (clk_mgr_base->clks.p_state_change_support) |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, |
| khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz)); |
| else |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, |
| clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries_per_clk.num_memclk_levels - 1].memclk_mhz); |
| } else { |
| dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, |
| clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz); |
| } |
| } |
| |
| /* Set max memclk to highest DPM value */ |
| static void dcn32_set_hard_max_memclk(struct clk_mgr *clk_mgr_base) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, |
| clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries_per_clk.num_memclk_levels - 1].memclk_mhz); |
| } |
| |
| /* Get current memclk states, update bounding box */ |
| static void dcn32_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| struct clk_limit_num_entries *num_entries_per_clk = &clk_mgr_base->bw_params->clk_table.num_entries_per_clk; |
| unsigned int num_levels; |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| /* Refresh memclk and fclk states */ |
| dcn32_init_single_clock(clk_mgr, PPCLK_UCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz, |
| &num_entries_per_clk->num_memclk_levels); |
| |
| /* memclk must have at least one level */ |
| num_entries_per_clk->num_memclk_levels = num_entries_per_clk->num_memclk_levels ? num_entries_per_clk->num_memclk_levels : 1; |
| |
| dcn32_init_single_clock(clk_mgr, PPCLK_FCLK, |
| &clk_mgr_base->bw_params->clk_table.entries[0].fclk_mhz, |
| &num_entries_per_clk->num_fclk_levels); |
| |
| if (num_entries_per_clk->num_memclk_levels >= num_entries_per_clk->num_fclk_levels) { |
| num_levels = num_entries_per_clk->num_memclk_levels; |
| } else { |
| num_levels = num_entries_per_clk->num_fclk_levels; |
| } |
| |
| clk_mgr_base->bw_params->clk_table.num_entries = num_levels ? num_levels : 1; |
| |
| if (clk_mgr->dpm_present && !num_levels) |
| clk_mgr->dpm_present = false; |
| |
| if (!clk_mgr->dpm_present) |
| dcn32_patch_dpm_table(clk_mgr_base->bw_params); |
| |
| DC_FP_START(); |
| /* Refresh bounding box */ |
| clk_mgr_base->ctx->dc->res_pool->funcs->update_bw_bounding_box( |
| clk_mgr->base.ctx->dc, clk_mgr_base->bw_params); |
| DC_FP_END(); |
| } |
| |
| static bool dcn32_are_clock_states_equal(struct dc_clocks *a, |
| struct dc_clocks *b) |
| { |
| if (a->dispclk_khz != b->dispclk_khz) |
| return false; |
| else if (a->dppclk_khz != b->dppclk_khz) |
| return false; |
| else if (a->dcfclk_khz != b->dcfclk_khz) |
| return false; |
| else if (a->dcfclk_deep_sleep_khz != b->dcfclk_deep_sleep_khz) |
| return false; |
| else if (a->dramclk_khz != b->dramclk_khz) |
| return false; |
| else if (a->p_state_change_support != b->p_state_change_support) |
| return false; |
| else if (a->fclk_p_state_change_support != b->fclk_p_state_change_support) |
| return false; |
| |
| return true; |
| } |
| |
| static void dcn32_enable_pme_wa(struct clk_mgr *clk_mgr_base) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| |
| if (!clk_mgr->smu_present) |
| return; |
| |
| dcn32_smu_set_pme_workaround(clk_mgr); |
| } |
| |
| static bool dcn32_is_smu_present(struct clk_mgr *clk_mgr_base) |
| { |
| struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); |
| return clk_mgr->smu_present; |
| } |
| |
| |
| static struct clk_mgr_funcs dcn32_funcs = { |
| .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, |
| .get_dtb_ref_clk_frequency = dcn31_get_dtb_ref_freq_khz, |
| .update_clocks = dcn32_update_clocks, |
| .dump_clk_registers = dcn32_dump_clk_registers, |
| .init_clocks = dcn32_init_clocks, |
| .notify_wm_ranges = dcn32_notify_wm_ranges, |
| .set_hard_min_memclk = dcn32_set_hard_min_memclk, |
| .set_hard_max_memclk = dcn32_set_hard_max_memclk, |
| .get_memclk_states_from_smu = dcn32_get_memclk_states_from_smu, |
| .are_clock_states_equal = dcn32_are_clock_states_equal, |
| .enable_pme_wa = dcn32_enable_pme_wa, |
| .is_smu_present = dcn32_is_smu_present, |
| }; |
| |
| void dcn32_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->base.funcs = &dcn32_funcs; |
| if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) { |
| clk_mgr->regs = &clk_mgr_regs_dcn321; |
| clk_mgr->clk_mgr_shift = &clk_mgr_shift_dcn321; |
| clk_mgr->clk_mgr_mask = &clk_mgr_mask_dcn321; |
| } else { |
| clk_mgr->regs = &clk_mgr_regs_dcn32; |
| clk_mgr->clk_mgr_shift = &clk_mgr_shift_dcn32; |
| clk_mgr->clk_mgr_mask = &clk_mgr_mask_dcn32; |
| } |
| |
| 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->dfs_ref_freq_khz = 100000; |
| |
| /* Changed from DCN3.2_clock_frequency doc to match |
| * dcn32_dump_clk_registers from 4 * dentist_vco_freq_khz / |
| * dprefclk DID divider |
| */ |
| clk_mgr->base.dprefclk_khz = 716666; |
| if (ctx->dc->debug.disable_dtb_ref_clk_switch) { |
| //initialize DTB ref clock value if DPM disabled |
| if (ctx->dce_version == DCN_VERSION_3_21) |
| clk_mgr->base.clks.ref_dtbclk_khz = 477800; |
| else |
| clk_mgr->base.clks.ref_dtbclk_khz = 268750; |
| } |
| |
| /* integer part is now VCO frequency in kHz */ |
| clk_mgr->base.dentist_vco_freq_khz = dcn32_get_vco_frequency_from_reg(clk_mgr); |
| |
| /* in case we don't get a value from the register, use default */ |
| if (clk_mgr->base.dentist_vco_freq_khz == 0) |
| clk_mgr->base.dentist_vco_freq_khz = 4300000; /* Updated as per HW docs */ |
| |
| if (ctx->dc->debug.disable_dtb_ref_clk_switch && |
| clk_mgr->base.clks.ref_dtbclk_khz != clk_mgr->base.boot_snapshot.dtbclk) { |
| clk_mgr->base.clks.ref_dtbclk_khz = clk_mgr->base.boot_snapshot.dtbclk; |
| } |
| |
| if (clk_mgr->base.boot_snapshot.dprefclk != 0) { |
| clk_mgr->base.dprefclk_khz = clk_mgr->base.boot_snapshot.dprefclk; |
| } |
| dcn32_clock_read_ss_info(clk_mgr); |
| |
| clk_mgr->dfs_bypass_enabled = false; |
| |
| clk_mgr->smu_present = false; |
| |
| clk_mgr->base.bw_params = kzalloc(sizeof(*clk_mgr->base.bw_params), GFP_KERNEL); |
| |
| /* need physical address of table to give to PMFW */ |
| clk_mgr->wm_range_table = dm_helpers_allocate_gpu_mem(clk_mgr->base.ctx, |
| DC_MEM_ALLOC_TYPE_GART, sizeof(WatermarksExternal_t), |
| &clk_mgr->wm_range_table_addr); |
| } |
| |
| void dcn32_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr) |
| { |
| if (clk_mgr->base.bw_params) |
| kfree(clk_mgr->base.bw_params); |
| |
| if (clk_mgr->wm_range_table) |
| dm_helpers_free_gpu_mem(clk_mgr->base.ctx, DC_MEM_ALLOC_TYPE_GART, |
| clk_mgr->wm_range_table); |
| } |
| |