diff options
Diffstat (limited to 'drivers/platform/x86/amd/pmf/auto-mode.c')
-rw-r--r-- | drivers/platform/x86/amd/pmf/auto-mode.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/pmf/auto-mode.c b/drivers/platform/x86/amd/pmf/auto-mode.c new file mode 100644 index 0000000000..02ff68be10 --- /dev/null +++ b/drivers/platform/x86/amd/pmf/auto-mode.c @@ -0,0 +1,441 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AMD Platform Management Framework Driver + * + * Copyright (c) 2022, Advanced Micro Devices, Inc. + * All Rights Reserved. + * + * Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> + */ + +#include <linux/acpi.h> +#include <linux/workqueue.h> +#include "pmf.h" + +static struct auto_mode_mode_config config_store; +static const char *state_as_str(unsigned int state); + +#ifdef CONFIG_AMD_PMF_DEBUG +static void amd_pmf_dump_auto_mode_defaults(struct auto_mode_mode_config *data) +{ + struct auto_mode_mode_settings *its_mode; + + pr_debug("Auto Mode Data - BEGIN\n"); + + /* time constant */ + pr_debug("balanced_to_perf: %u ms\n", + data->transition[AUTO_TRANSITION_TO_PERFORMANCE].time_constant); + pr_debug("perf_to_balanced: %u ms\n", + data->transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].time_constant); + pr_debug("quiet_to_balanced: %u ms\n", + data->transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].time_constant); + pr_debug("balanced_to_quiet: %u ms\n", + data->transition[AUTO_TRANSITION_TO_QUIET].time_constant); + + /* power floor */ + pr_debug("pfloor_perf: %u mW\n", data->mode_set[AUTO_PERFORMANCE].power_floor); + pr_debug("pfloor_balanced: %u mW\n", data->mode_set[AUTO_BALANCE].power_floor); + pr_debug("pfloor_quiet: %u mW\n", data->mode_set[AUTO_QUIET].power_floor); + + /* Power delta for mode change */ + pr_debug("pd_balanced_to_perf: %u mW\n", + data->transition[AUTO_TRANSITION_TO_PERFORMANCE].power_delta); + pr_debug("pd_perf_to_balanced: %u mW\n", + data->transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].power_delta); + pr_debug("pd_quiet_to_balanced: %u mW\n", + data->transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].power_delta); + pr_debug("pd_balanced_to_quiet: %u mW\n", + data->transition[AUTO_TRANSITION_TO_QUIET].power_delta); + + /* skin temperature limits */ + its_mode = &data->mode_set[AUTO_PERFORMANCE_ON_LAP]; + pr_debug("stt_apu_perf_on_lap: %u C\n", + its_mode->power_control.stt_skin_temp[STT_TEMP_APU]); + pr_debug("stt_hs2_perf_on_lap: %u C\n", + its_mode->power_control.stt_skin_temp[STT_TEMP_HS2]); + pr_debug("stt_min_limit_perf_on_lap: %u mW\n", its_mode->power_control.stt_min); + + its_mode = &data->mode_set[AUTO_PERFORMANCE]; + pr_debug("stt_apu_perf: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_APU]); + pr_debug("stt_hs2_perf: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_HS2]); + pr_debug("stt_min_limit_perf: %u mW\n", its_mode->power_control.stt_min); + + its_mode = &data->mode_set[AUTO_BALANCE]; + pr_debug("stt_apu_balanced: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_APU]); + pr_debug("stt_hs2_balanced: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_HS2]); + pr_debug("stt_min_limit_balanced: %u mW\n", its_mode->power_control.stt_min); + + its_mode = &data->mode_set[AUTO_QUIET]; + pr_debug("stt_apu_quiet: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_APU]); + pr_debug("stt_hs2_quiet: %u C\n", its_mode->power_control.stt_skin_temp[STT_TEMP_HS2]); + pr_debug("stt_min_limit_quiet: %u mW\n", its_mode->power_control.stt_min); + + /* SPL based power limits */ + its_mode = &data->mode_set[AUTO_PERFORMANCE_ON_LAP]; + pr_debug("fppt_perf_on_lap: %u mW\n", its_mode->power_control.fppt); + pr_debug("sppt_perf_on_lap: %u mW\n", its_mode->power_control.sppt); + pr_debug("spl_perf_on_lap: %u mW\n", its_mode->power_control.spl); + pr_debug("sppt_apu_only_perf_on_lap: %u mW\n", its_mode->power_control.sppt_apu_only); + + its_mode = &data->mode_set[AUTO_PERFORMANCE]; + pr_debug("fppt_perf: %u mW\n", its_mode->power_control.fppt); + pr_debug("sppt_perf: %u mW\n", its_mode->power_control.sppt); + pr_debug("spl_perf: %u mW\n", its_mode->power_control.spl); + pr_debug("sppt_apu_only_perf: %u mW\n", its_mode->power_control.sppt_apu_only); + + its_mode = &data->mode_set[AUTO_BALANCE]; + pr_debug("fppt_balanced: %u mW\n", its_mode->power_control.fppt); + pr_debug("sppt_balanced: %u mW\n", its_mode->power_control.sppt); + pr_debug("spl_balanced: %u mW\n", its_mode->power_control.spl); + pr_debug("sppt_apu_only_balanced: %u mW\n", its_mode->power_control.sppt_apu_only); + + its_mode = &data->mode_set[AUTO_QUIET]; + pr_debug("fppt_quiet: %u mW\n", its_mode->power_control.fppt); + pr_debug("sppt_quiet: %u mW\n", its_mode->power_control.sppt); + pr_debug("spl_quiet: %u mW\n", its_mode->power_control.spl); + pr_debug("sppt_apu_only_quiet: %u mW\n", its_mode->power_control.sppt_apu_only); + + /* Fan ID */ + pr_debug("fan_id_perf: %lu\n", + data->mode_set[AUTO_PERFORMANCE].fan_control.fan_id); + pr_debug("fan_id_balanced: %lu\n", + data->mode_set[AUTO_BALANCE].fan_control.fan_id); + pr_debug("fan_id_quiet: %lu\n", + data->mode_set[AUTO_QUIET].fan_control.fan_id); + + pr_debug("Auto Mode Data - END\n"); +} +#else +static void amd_pmf_dump_auto_mode_defaults(struct auto_mode_mode_config *data) {} +#endif + +static void amd_pmf_set_automode(struct amd_pmf_dev *dev, int idx, + struct auto_mode_mode_config *table) +{ + struct power_table_control *pwr_ctrl = &config_store.mode_set[idx].power_control; + + amd_pmf_send_cmd(dev, SET_SPL, false, pwr_ctrl->spl, NULL); + amd_pmf_send_cmd(dev, SET_FPPT, false, pwr_ctrl->fppt, NULL); + amd_pmf_send_cmd(dev, SET_SPPT, false, pwr_ctrl->sppt, NULL); + amd_pmf_send_cmd(dev, SET_SPPT_APU_ONLY, false, pwr_ctrl->sppt_apu_only, NULL); + amd_pmf_send_cmd(dev, SET_STT_MIN_LIMIT, false, pwr_ctrl->stt_min, NULL); + amd_pmf_send_cmd(dev, SET_STT_LIMIT_APU, false, + pwr_ctrl->stt_skin_temp[STT_TEMP_APU], NULL); + amd_pmf_send_cmd(dev, SET_STT_LIMIT_HS2, false, + pwr_ctrl->stt_skin_temp[STT_TEMP_HS2], NULL); + + if (is_apmf_func_supported(dev, APMF_FUNC_SET_FAN_IDX)) + apmf_update_fan_idx(dev, config_store.mode_set[idx].fan_control.manual, + config_store.mode_set[idx].fan_control.fan_id); +} + +static int amd_pmf_get_moving_avg(struct amd_pmf_dev *pdev, int socket_power) +{ + int i, total = 0; + + if (pdev->socket_power_history_idx == -1) { + for (i = 0; i < AVG_SAMPLE_SIZE; i++) + pdev->socket_power_history[i] = socket_power; + } + + pdev->socket_power_history_idx = (pdev->socket_power_history_idx + 1) % AVG_SAMPLE_SIZE; + pdev->socket_power_history[pdev->socket_power_history_idx] = socket_power; + + for (i = 0; i < AVG_SAMPLE_SIZE; i++) + total += pdev->socket_power_history[i]; + + return total / AVG_SAMPLE_SIZE; +} + +void amd_pmf_trans_automode(struct amd_pmf_dev *dev, int socket_power, ktime_t time_elapsed_ms) +{ + int avg_power = 0; + bool update = false; + int i, j; + + /* Get the average moving average computed by auto mode algorithm */ + avg_power = amd_pmf_get_moving_avg(dev, socket_power); + + for (i = 0; i < AUTO_TRANSITION_MAX; i++) { + if ((config_store.transition[i].shifting_up && avg_power >= + config_store.transition[i].power_threshold) || + (!config_store.transition[i].shifting_up && avg_power <= + config_store.transition[i].power_threshold)) { + if (config_store.transition[i].timer < + config_store.transition[i].time_constant) + config_store.transition[i].timer += time_elapsed_ms; + } else { + config_store.transition[i].timer = 0; + } + + if (config_store.transition[i].timer >= + config_store.transition[i].time_constant && + !config_store.transition[i].applied) { + config_store.transition[i].applied = true; + update = true; + } else if (config_store.transition[i].timer <= + config_store.transition[i].time_constant && + config_store.transition[i].applied) { + config_store.transition[i].applied = false; + update = true; + } + +#ifdef CONFIG_AMD_PMF_DEBUG + dev_dbg(dev->dev, "[AUTO MODE] average_power : %d mW mode: %s\n", avg_power, + state_as_str(config_store.current_mode)); + + dev_dbg(dev->dev, "[AUTO MODE] time: %lld ms timer: %u ms tc: %u ms\n", + time_elapsed_ms, config_store.transition[i].timer, + config_store.transition[i].time_constant); + + dev_dbg(dev->dev, "[AUTO MODE] shiftup: %u pt: %u mW pf: %u mW pd: %u mW\n", + config_store.transition[i].shifting_up, + config_store.transition[i].power_threshold, + config_store.mode_set[i].power_floor, + config_store.transition[i].power_delta); +#endif + } + + dev_dbg(dev->dev, "[AUTO_MODE] avg power: %u mW mode: %s\n", avg_power, + state_as_str(config_store.current_mode)); + +#ifdef CONFIG_AMD_PMF_DEBUG + dev_dbg(dev->dev, "[AUTO MODE] priority1: %u priority2: %u priority3: %u priority4: %u\n", + config_store.transition[0].applied, + config_store.transition[1].applied, + config_store.transition[2].applied, + config_store.transition[3].applied); +#endif + + if (update) { + for (j = 0; j < AUTO_TRANSITION_MAX; j++) { + /* Apply the mode with highest priority indentified */ + if (config_store.transition[j].applied) { + if (config_store.current_mode != + config_store.transition[j].target_mode) { + config_store.current_mode = + config_store.transition[j].target_mode; + dev_dbg(dev->dev, "[AUTO_MODE] moving to mode:%s\n", + state_as_str(config_store.current_mode)); + amd_pmf_set_automode(dev, config_store.current_mode, NULL); + } + break; + } + } + } +} + +void amd_pmf_update_2_cql(struct amd_pmf_dev *dev, bool is_cql_event) +{ + int mode = config_store.current_mode; + + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].target_mode = + is_cql_event ? AUTO_PERFORMANCE_ON_LAP : AUTO_PERFORMANCE; + + if ((mode == AUTO_PERFORMANCE || mode == AUTO_PERFORMANCE_ON_LAP) && + mode != config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].target_mode) { + mode = config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].target_mode; + amd_pmf_set_automode(dev, mode, NULL); + } + dev_dbg(dev->dev, "updated CQL thermals\n"); +} + +static void amd_pmf_get_power_threshold(void) +{ + config_store.transition[AUTO_TRANSITION_TO_QUIET].power_threshold = + config_store.mode_set[AUTO_BALANCE].power_floor - + config_store.transition[AUTO_TRANSITION_TO_QUIET].power_delta; + + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].power_threshold = + config_store.mode_set[AUTO_BALANCE].power_floor - + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].power_delta; + + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].power_threshold = + config_store.mode_set[AUTO_QUIET].power_floor - + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].power_delta; + + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].power_threshold = + config_store.mode_set[AUTO_PERFORMANCE].power_floor - + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].power_delta; + +#ifdef CONFIG_AMD_PMF_DEBUG + pr_debug("[AUTO MODE TO_QUIET] pt: %u mW pf: %u mW pd: %u mW\n", + config_store.transition[AUTO_TRANSITION_TO_QUIET].power_threshold, + config_store.mode_set[AUTO_BALANCE].power_floor, + config_store.transition[AUTO_TRANSITION_TO_QUIET].power_delta); + + pr_debug("[AUTO MODE TO_PERFORMANCE] pt: %u mW pf: %u mW pd: %u mW\n", + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].power_threshold, + config_store.mode_set[AUTO_BALANCE].power_floor, + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].power_delta); + + pr_debug("[AUTO MODE QUIET_TO_BALANCE] pt: %u mW pf: %u mW pd: %u mW\n", + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE] + .power_threshold, + config_store.mode_set[AUTO_QUIET].power_floor, + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].power_delta); + + pr_debug("[AUTO MODE PERFORMANCE_TO_BALANCE] pt: %u mW pf: %u mW pd: %u mW\n", + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE] + .power_threshold, + config_store.mode_set[AUTO_PERFORMANCE].power_floor, + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].power_delta); +#endif +} + +static const char *state_as_str(unsigned int state) +{ + switch (state) { + case AUTO_QUIET: + return "QUIET"; + case AUTO_BALANCE: + return "BALANCED"; + case AUTO_PERFORMANCE_ON_LAP: + return "ON_LAP"; + case AUTO_PERFORMANCE: + return "PERFORMANCE"; + default: + return "Unknown Auto Mode State"; + } +} + +static void amd_pmf_load_defaults_auto_mode(struct amd_pmf_dev *dev) +{ + struct apmf_auto_mode output; + struct power_table_control *pwr_ctrl; + int i; + + apmf_get_auto_mode_def(dev, &output); + /* time constant */ + config_store.transition[AUTO_TRANSITION_TO_QUIET].time_constant = + output.balanced_to_quiet; + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].time_constant = + output.balanced_to_perf; + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].time_constant = + output.quiet_to_balanced; + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].time_constant = + output.perf_to_balanced; + + /* power floor */ + config_store.mode_set[AUTO_QUIET].power_floor = output.pfloor_quiet; + config_store.mode_set[AUTO_BALANCE].power_floor = output.pfloor_balanced; + config_store.mode_set[AUTO_PERFORMANCE].power_floor = output.pfloor_perf; + config_store.mode_set[AUTO_PERFORMANCE_ON_LAP].power_floor = output.pfloor_perf; + + /* Power delta for mode change */ + config_store.transition[AUTO_TRANSITION_TO_QUIET].power_delta = + output.pd_balanced_to_quiet; + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].power_delta = + output.pd_balanced_to_perf; + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].power_delta = + output.pd_quiet_to_balanced; + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].power_delta = + output.pd_perf_to_balanced; + + /* Power threshold */ + amd_pmf_get_power_threshold(); + + /* skin temperature limits */ + pwr_ctrl = &config_store.mode_set[AUTO_QUIET].power_control; + pwr_ctrl->spl = output.spl_quiet; + pwr_ctrl->sppt = output.sppt_quiet; + pwr_ctrl->fppt = output.fppt_quiet; + pwr_ctrl->sppt_apu_only = output.sppt_apu_only_quiet; + pwr_ctrl->stt_min = output.stt_min_limit_quiet; + pwr_ctrl->stt_skin_temp[STT_TEMP_APU] = output.stt_apu_quiet; + pwr_ctrl->stt_skin_temp[STT_TEMP_HS2] = output.stt_hs2_quiet; + + pwr_ctrl = &config_store.mode_set[AUTO_BALANCE].power_control; + pwr_ctrl->spl = output.spl_balanced; + pwr_ctrl->sppt = output.sppt_balanced; + pwr_ctrl->fppt = output.fppt_balanced; + pwr_ctrl->sppt_apu_only = output.sppt_apu_only_balanced; + pwr_ctrl->stt_min = output.stt_min_limit_balanced; + pwr_ctrl->stt_skin_temp[STT_TEMP_APU] = output.stt_apu_balanced; + pwr_ctrl->stt_skin_temp[STT_TEMP_HS2] = output.stt_hs2_balanced; + + pwr_ctrl = &config_store.mode_set[AUTO_PERFORMANCE].power_control; + pwr_ctrl->spl = output.spl_perf; + pwr_ctrl->sppt = output.sppt_perf; + pwr_ctrl->fppt = output.fppt_perf; + pwr_ctrl->sppt_apu_only = output.sppt_apu_only_perf; + pwr_ctrl->stt_min = output.stt_min_limit_perf; + pwr_ctrl->stt_skin_temp[STT_TEMP_APU] = output.stt_apu_perf; + pwr_ctrl->stt_skin_temp[STT_TEMP_HS2] = output.stt_hs2_perf; + + pwr_ctrl = &config_store.mode_set[AUTO_PERFORMANCE_ON_LAP].power_control; + pwr_ctrl->spl = output.spl_perf_on_lap; + pwr_ctrl->sppt = output.sppt_perf_on_lap; + pwr_ctrl->fppt = output.fppt_perf_on_lap; + pwr_ctrl->sppt_apu_only = output.sppt_apu_only_perf_on_lap; + pwr_ctrl->stt_min = output.stt_min_limit_perf_on_lap; + pwr_ctrl->stt_skin_temp[STT_TEMP_APU] = output.stt_apu_perf_on_lap; + pwr_ctrl->stt_skin_temp[STT_TEMP_HS2] = output.stt_hs2_perf_on_lap; + + /* Fan ID */ + config_store.mode_set[AUTO_QUIET].fan_control.fan_id = output.fan_id_quiet; + config_store.mode_set[AUTO_BALANCE].fan_control.fan_id = output.fan_id_balanced; + config_store.mode_set[AUTO_PERFORMANCE].fan_control.fan_id = output.fan_id_perf; + config_store.mode_set[AUTO_PERFORMANCE_ON_LAP].fan_control.fan_id = + output.fan_id_perf; + + config_store.transition[AUTO_TRANSITION_TO_QUIET].target_mode = AUTO_QUIET; + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].target_mode = + AUTO_PERFORMANCE; + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].target_mode = + AUTO_BALANCE; + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].target_mode = + AUTO_BALANCE; + + config_store.transition[AUTO_TRANSITION_TO_QUIET].shifting_up = false; + config_store.transition[AUTO_TRANSITION_TO_PERFORMANCE].shifting_up = true; + config_store.transition[AUTO_TRANSITION_FROM_QUIET_TO_BALANCE].shifting_up = true; + config_store.transition[AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE].shifting_up = + false; + + for (i = 0 ; i < AUTO_MODE_MAX ; i++) { + if (config_store.mode_set[i].fan_control.fan_id == FAN_INDEX_AUTO) + config_store.mode_set[i].fan_control.manual = false; + else + config_store.mode_set[i].fan_control.manual = true; + } + + /* set to initial default values */ + config_store.current_mode = AUTO_BALANCE; + dev->socket_power_history_idx = -1; + + amd_pmf_dump_auto_mode_defaults(&config_store); +} + +int amd_pmf_reset_amt(struct amd_pmf_dev *dev) +{ + /* + * OEM BIOS implementation guide says that if the auto mode is enabled + * the platform_profile registration shall be done by the OEM driver. + * There could be cases where both static slider and auto mode BIOS + * functions are enabled, in that case enable static slider updates + * only if it advertised as supported. + */ + + if (is_apmf_func_supported(dev, APMF_FUNC_STATIC_SLIDER_GRANULAR)) { + dev_dbg(dev->dev, "resetting AMT thermals\n"); + amd_pmf_set_sps_power_limits(dev); + } + return 0; +} + +void amd_pmf_handle_amt(struct amd_pmf_dev *dev) +{ + amd_pmf_set_automode(dev, config_store.current_mode, NULL); +} + +void amd_pmf_deinit_auto_mode(struct amd_pmf_dev *dev) +{ + cancel_delayed_work_sync(&dev->work_buffer); +} + +void amd_pmf_init_auto_mode(struct amd_pmf_dev *dev) +{ + amd_pmf_load_defaults_auto_mode(dev); + amd_pmf_init_metrics_table(dev); +} |