linux/drivers/platform/x86/amd/pmf/pmf.h

/* 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>
 */

#ifndef PMF_H
#define PMF_H

#include <linux/acpi.h>
#include <linux/platform_profile.h>

/* APMF Functions */
#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

/* Message Definitions */
#define SET_SPL				0x03 /* SPL: Sustained Power Limit */
#define SET_SPPT			0x05 /* SPPT: Slow Package Power Tracking */
#define SET_FPPT			0x07 /* FPPT: Fast Package Power Tracking */
#define GET_SPL				0x0B
#define GET_SPPT			0x0D
#define GET_FPPT			0x0F
#define SET_DRAM_ADDR_HIGH	0x14
#define SET_DRAM_ADDR_LOW	0x15
#define SET_TRANSFER_TABLE	0x16
#define SET_STT_MIN_LIMIT	0x18 /* STT: Skin Temperature Tracking */
#define SET_STT_LIMIT_APU	0x19
#define SET_STT_LIMIT_HS2	0x1A
#define SET_SPPT_APU_ONLY	0x1D
#define GET_SPPT_APU_ONLY	0x1E
#define GET_STT_MIN_LIMIT	0x1F
#define GET_STT_LIMIT_APU	0x20
#define GET_STT_LIMIT_HS2	0x21

/* Fan Index for Auto Mode */
#define FAN_INDEX_AUTO		0xFFFFFFFF

#define ARG_NONE 0
#define AVG_SAMPLE_SIZE 3

/* AMD PMF BIOS interfaces */
struct apmf_verify_interface {
	u16 size;
	u16 version;
	u32 notification_mask;
	u32 supported_functions;
} __packed;

struct apmf_system_params {
	u16 size;
	u32 valid_mask;
	u32 flags;
	u8 command_code;
	u32 heartbeat_int;
} __packed;

struct apmf_fan_idx {
	u16 size;
	u8 fan_ctl_mode;
	u32 fan_ctl_idx;
} __packed;

struct smu_pmf_metrics {
	u16 gfxclk_freq; /* in MHz */
	u16 socclk_freq; /* in MHz */
	u16 vclk_freq; /* in MHz */
	u16 dclk_freq; /* in MHz */
	u16 memclk_freq; /* in MHz */
	u16 spare;
	u16 gfx_activity; /* in Centi */
	u16 uvd_activity; /* in Centi */
	u16 voltage[2]; /* in mV */
	u16 currents[2]; /* in mA */
	u16 power[2];/* in mW */
	u16 core_freq[8]; /* in MHz */
	u16 core_power[8]; /* in mW */
	u16 core_temp[8]; /* in centi-Celsius */
	u16 l3_freq; /* in MHz */
	u16 l3_temp; /* in centi-Celsius */
	u16 gfx_temp; /* in centi-Celsius */
	u16 soc_temp; /* in centi-Celsius */
	u16 throttler_status;
	u16 current_socketpower; /* in mW */
	u16 stapm_orig_limit; /* in W */
	u16 stapm_cur_limit; /* in W */
	u32 apu_power; /* in mW */
	u32 dgpu_power; /* in mW */
	u16 vdd_tdc_val; /* in mA */
	u16 soc_tdc_val; /* in mA */
	u16 vdd_edc_val; /* in mA */
	u16 soc_edcv_al; /* in mA */
	u16 infra_cpu_maxfreq; /* in MHz */
	u16 infra_gfx_maxfreq; /* in MHz */
	u16 skin_temp; /* in centi-Celsius */
	u16 device_state;
} __packed;

enum amd_stt_skin_temp {
	STT_TEMP_APU,
	STT_TEMP_HS2,
	STT_TEMP_COUNT,
};

enum amd_slider_op {
	SLIDER_OP_GET,
	SLIDER_OP_SET,
};

enum power_source {
	POWER_SOURCE_AC,
	POWER_SOURCE_DC,
	POWER_SOURCE_MAX,
};

enum power_modes {
	POWER_MODE_PERFORMANCE,
	POWER_MODE_BALANCED_POWER,
	POWER_MODE_POWER_SAVER,
	POWER_MODE_MAX,
};

struct amd_pmf_dev {
	void __iomem *regbase;
	void __iomem *smu_virt_addr;
	void *buf;
	u32 base_addr;
	u32 cpu_id;
	struct device *dev;
	struct mutex lock; /* protects the PMF interface */
	u32 supported_func;
	enum platform_profile_option current_profile;
	struct platform_profile_handler pprof;
	struct dentry *dbgfs_dir;
	int hb_interval; /* SBIOS heartbeat interval */
	struct delayed_work heart_beat;
	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 {
	u32 fppt;
	u32 sppt;
	u32 sppt_apu_only;
	u32 spl;
	u32 stt_min;
	u8 stt_skin_temp[STT_TEMP_COUNT];
	u32 fan_id;
} __packed;

/* Static Slider */
struct apmf_static_slider_granular_output {
	u16 size;
	struct apmf_sps_prop_granular prop[POWER_SOURCE_MAX * POWER_MODE_MAX];
} __packed;

struct amd_pmf_static_slider_granular {
	u16 size;
	struct apmf_sps_prop_granular prop[POWER_SOURCE_MAX][POWER_MODE_MAX];
};

struct fan_table_control {
	bool manual;
	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);
int is_apmf_func_supported(struct amd_pmf_dev *pdev, unsigned long index);
int amd_pmf_send_cmd(struct amd_pmf_dev *dev, u8 message, bool get, u32 arg, u32 *data);
int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev);
int amd_pmf_get_power_source(void);

/* SPS Layer */
u8 amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf);
void amd_pmf_update_slider(struct amd_pmf_dev *dev, bool op, int idx,
			   struct amd_pmf_static_slider_granular *table);
int amd_pmf_init_sps(struct amd_pmf_dev *dev);
void amd_pmf_deinit_sps(struct amd_pmf_dev *dev);
int apmf_get_static_slider_granular(struct amd_pmf_dev *pdev,
				    struct apmf_static_slider_granular_output *output);


int apmf_update_fan_idx(struct amd_pmf_dev *pdev, bool manual, u32 idx);

/* Auto Mode Layer */
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 */