Hi,
On 8/2/22 17:11, Shyam Sundar S K wrote:
> This feature has 3 modes quiet, balanced, performance
>
> The objective of this feature is to track the moving average of system
> power over the time period specified and switch to the subsequent mode.
>
> In order to do this, PMF driver will get the moving average of APU power
> from PMFW and power threshold, time constants, system config parameters
> from OEM inputs.
>
> System power as read by PMF driver from PMFW is the filtered value over
> the sampling window. Every sampling window, moving average of system power
> is computed. At the end of the monitoring window, the moving average is
> compared against the threshold for mode switch for decision making.
>
> With AMD managing the system config limits, any mode switch within
> auto-mode will result in limits of fPPT/sPPT/STAPM or STT being scaled
> down.
>
> When "auto mode" is enabled, the static slider control remains out of
> the PMF driver, so the platform_profile registration would not
> happen in PMF driver.
>
> The transition to auto-mode only happens when the APMF fn5 is enabled
> in BIOS, platform_profile set to "balanced" and a AMT
> (Auto Mode transition) is received.
>
> Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
> ---
> drivers/platform/x86/amd/pmf/Makefile | 3 +-
> drivers/platform/x86/amd/pmf/acpi.c | 5 +
> drivers/platform/x86/amd/pmf/auto-mode.c | 263 +++++++++++++++++++++++
> drivers/platform/x86/amd/pmf/core.c | 9 +
> drivers/platform/x86/amd/pmf/pmf.h | 113 ++++++++++
> 5 files changed, 392 insertions(+), 1 deletion(-)
> create mode 100644 drivers/platform/x86/amd/pmf/auto-mode.c
>
> diff --git a/drivers/platform/x86/amd/pmf/Makefile b/drivers/platform/x86/amd/pmf/Makefile
> index 557521a80427..ef2b08c9174d 100644
> --- a/drivers/platform/x86/amd/pmf/Makefile
> +++ b/drivers/platform/x86/amd/pmf/Makefile
> @@ -5,4 +5,5 @@
> #
>
> obj-$(CONFIG_AMD_PMF) += amd-pmf.o
> -amd-pmf-objs := core.o acpi.o sps.o
> +amd-pmf-objs := core.o acpi.o sps.o \
> + auto-mode.o
> diff --git a/drivers/platform/x86/amd/pmf/acpi.c b/drivers/platform/x86/amd/pmf/acpi.c
> index 1fc4d1400364..401fee381e90 100644
> --- a/drivers/platform/x86/amd/pmf/acpi.c
> +++ b/drivers/platform/x86/amd/pmf/acpi.c
> @@ -144,6 +144,11 @@ int apmf_update_fan_idx(struct amd_pmf_dev *pdev, bool manual, u32 idx)
> return err;
> }
>
> +int apmf_get_auto_mode_def(struct amd_pmf_dev *pdev, struct apmf_auto_mode *data)
> +{
> + return apmf_if_call_store_buffer(pdev, APMF_FUNC_AUTO_MODE, data, sizeof(*data));
> +}
> +
> static int apmf_if_verify_interface(struct amd_pmf_dev *pdev)
> {
> struct apmf_verify_interface output;
> 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 000000000000..99f5a2396b0b
> --- /dev/null
> +++ b/drivers/platform/x86/amd/pmf/auto-mode.c
> @@ -0,0 +1,263 @@
> +// 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@xxxxxxx>
> + */
> +
> +#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);
> +
> +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;
> + }
> + }
> +
> + dev_dbg(dev->dev, "[AUTO_MODE] avg power: %u mW mode: %s\n", avg_power,
> + state_as_str(config_store.current_mode));
> +
> + 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;
> + }
> + }
> + }
> +}
> +
> +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;
> +}
> +
> +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";
> + }
> +}
> +
> +void amd_pmf_load_defaults_auto_mode(struct amd_pmf_dev *dev)
This function is only used in this file, so it can be static,
I will fix this up while merging this.
Regards,
Hans
> +{
> + 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;
> +}
> +
> +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);
> + /* update the thermal limits for Automode */
> + amd_pmf_set_automode(dev, config_store.current_mode, NULL);
> + amd_pmf_init_metrics_table(dev);
> +}
> diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
> index 762f769bf7ee..42d803b49d97 100644
> --- a/drivers/platform/x86/amd/pmf/core.c
> +++ b/drivers/platform/x86/amd/pmf/core.c
> @@ -240,12 +240,21 @@ static void amd_pmf_init_features(struct amd_pmf_dev *dev)
> amd_pmf_init_sps(dev);
> dev_dbg(dev->dev, "SPS enabled and Platform Profiles registered\n");
> }
> +
> + /* Enable Auto Mode */
> + if (is_apmf_func_supported(dev, APMF_FUNC_AUTO_MODE)) {
> + amd_pmf_init_auto_mode(dev);
> + dev_dbg(dev->dev, "Auto Mode Init done\n");
> + }
> }
>
> static void amd_pmf_deinit_features(struct amd_pmf_dev *dev)
> {
> if (is_apmf_func_supported(dev, APMF_FUNC_STATIC_SLIDER_GRANULAR))
> amd_pmf_deinit_sps(dev);
> +
> + if (is_apmf_func_supported(dev, APMF_FUNC_AUTO_MODE))
> + amd_pmf_deinit_auto_mode(dev);
> }
>
> static const struct acpi_device_id amd_pmf_acpi_ids[] = {
> diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
> index 42e4a5f512c0..ce092a529261 100644
> --- a/drivers/platform/x86/amd/pmf/pmf.h
> +++ b/drivers/platform/x86/amd/pmf/pmf.h
> @@ -18,6 +18,7 @@
> #define APMF_FUNC_VERIFY_INTERFACE 0
> #define APMF_FUNC_GET_SYS_PARAMS 1
> #define APMF_FUNC_SBIOS_HEARTBEAT 4
> +#define APMF_FUNC_AUTO_MODE 5
> #define APMF_FUNC_SET_FAN_IDX 7
> #define APMF_FUNC_STATIC_SLIDER_GRANULAR 9
>
> @@ -44,6 +45,7 @@
> #define FAN_INDEX_AUTO 0xFFFFFFFF
>
> #define ARG_NONE 0
> +#define AVG_SAMPLE_SIZE 3
>
> /* AMD PMF BIOS interfaces */
> struct apmf_verify_interface {
> @@ -143,6 +145,8 @@ struct amd_pmf_dev {
> struct smu_pmf_metrics m_table;
> struct delayed_work work_buffer;
> ktime_t start_time;
> + int socket_power_history[AVG_SAMPLE_SIZE];
> + int socket_power_history_idx;
> };
>
> struct apmf_sps_prop_granular {
> @@ -171,6 +175,107 @@ struct fan_table_control {
> unsigned long fan_id;
> };
>
> +struct power_table_control {
> + u32 spl;
> + u32 sppt;
> + u32 fppt;
> + u32 sppt_apu_only;
> + u32 stt_min;
> + u32 stt_skin_temp[STT_TEMP_COUNT];
> + u32 reserved[16];
> +};
> +
> +/* Auto Mode Layer */
> +enum auto_mode_transition_priority {
> + AUTO_TRANSITION_TO_PERFORMANCE, /* Any other mode to Performance Mode */
> + AUTO_TRANSITION_FROM_QUIET_TO_BALANCE, /* Quiet Mode to Balance Mode */
> + AUTO_TRANSITION_TO_QUIET, /* Any other mode to Quiet Mode */
> + AUTO_TRANSITION_FROM_PERFORMANCE_TO_BALANCE, /* Performance Mode to Balance Mode */
> + AUTO_TRANSITION_MAX,
> +};
> +
> +enum auto_mode_mode {
> + AUTO_QUIET,
> + AUTO_BALANCE,
> + AUTO_PERFORMANCE_ON_LAP,
> + AUTO_PERFORMANCE,
> + AUTO_MODE_MAX,
> +};
> +
> +struct auto_mode_trans_params {
> + u32 time_constant; /* minimum time required to switch to next mode */
> + u32 power_delta; /* delta power to shift mode */
> + u32 power_threshold;
> + u32 timer; /* elapsed time. if timer > TimeThreshold, it will move to next mode */
> + u32 applied;
> + enum auto_mode_mode target_mode;
> + u32 shifting_up;
> +};
> +
> +struct auto_mode_mode_settings {
> + struct power_table_control power_control;
> + struct fan_table_control fan_control;
> + u32 power_floor;
> +};
> +
> +struct auto_mode_mode_config {
> + struct auto_mode_trans_params transition[AUTO_TRANSITION_MAX];
> + struct auto_mode_mode_settings mode_set[AUTO_MODE_MAX];
> + enum auto_mode_mode current_mode;
> +};
> +
> +struct apmf_auto_mode {
> + u16 size;
> + /* time constant */
> + u32 balanced_to_perf;
> + u32 perf_to_balanced;
> + u32 quiet_to_balanced;
> + u32 balanced_to_quiet;
> + /* power floor */
> + u32 pfloor_perf;
> + u32 pfloor_balanced;
> + u32 pfloor_quiet;
> + /* Power delta for mode change */
> + u32 pd_balanced_to_perf;
> + u32 pd_perf_to_balanced;
> + u32 pd_quiet_to_balanced;
> + u32 pd_balanced_to_quiet;
> + /* skin temperature limits */
> + u8 stt_apu_perf_on_lap; /* CQL ON */
> + u8 stt_hs2_perf_on_lap; /* CQL ON */
> + u8 stt_apu_perf;
> + u8 stt_hs2_perf;
> + u8 stt_apu_balanced;
> + u8 stt_hs2_balanced;
> + u8 stt_apu_quiet;
> + u8 stt_hs2_quiet;
> + u32 stt_min_limit_perf_on_lap; /* CQL ON */
> + u32 stt_min_limit_perf;
> + u32 stt_min_limit_balanced;
> + u32 stt_min_limit_quiet;
> + /* SPL based */
> + u32 fppt_perf_on_lap; /* CQL ON */
> + u32 sppt_perf_on_lap; /* CQL ON */
> + u32 spl_perf_on_lap; /* CQL ON */
> + u32 sppt_apu_only_perf_on_lap; /* CQL ON */
> + u32 fppt_perf;
> + u32 sppt_perf;
> + u32 spl_perf;
> + u32 sppt_apu_only_perf;
> + u32 fppt_balanced;
> + u32 sppt_balanced;
> + u32 spl_balanced;
> + u32 sppt_apu_only_balanced;
> + u32 fppt_quiet;
> + u32 sppt_quiet;
> + u32 spl_quiet;
> + u32 sppt_apu_only_quiet;
> + /* Fan ID */
> + u32 fan_id_perf;
> + u32 fan_id_balanced;
> + u32 fan_id_quiet;
> +} __packed;
> +
> /* Core Layer */
> int apmf_acpi_init(struct amd_pmf_dev *pmf_dev);
> void apmf_acpi_deinit(struct amd_pmf_dev *pmf_dev);
> @@ -191,4 +296,12 @@ void amd_pmf_load_defaults_sps(struct amd_pmf_dev *dev);
>
>
> int apmf_update_fan_idx(struct amd_pmf_dev *pdev, bool manual, u32 idx);
> +
> +/* Auto Mode Layer */
> +void amd_pmf_load_defaults_auto_mode(struct amd_pmf_dev *dev);
> +int apmf_get_auto_mode_def(struct amd_pmf_dev *pdev, struct apmf_auto_mode *data);
> +void amd_pmf_init_auto_mode(struct amd_pmf_dev *dev);
> +void amd_pmf_deinit_auto_mode(struct amd_pmf_dev *dev);
> +void amd_pmf_trans_automode(struct amd_pmf_dev *dev, int socket_power, ktime_t time_elapsed_ms);
> +
> #endif /* PMF_H */
