drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h

/*
 * Copyright 2014 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.
 *
 */
#ifndef __AMDGPU_DPM_H__
#define __AMDGPU_DPM_H__

enum amdgpu_int_thermal_type {
	THERMAL_TYPE_NONE,
	THERMAL_TYPE_EXTERNAL,
	THERMAL_TYPE_EXTERNAL_GPIO,
	THERMAL_TYPE_RV6XX,
	THERMAL_TYPE_RV770,
	THERMAL_TYPE_ADT7473_WITH_INTERNAL,
	THERMAL_TYPE_EVERGREEN,
	THERMAL_TYPE_SUMO,
	THERMAL_TYPE_NI,
	THERMAL_TYPE_SI,
	THERMAL_TYPE_EMC2103_WITH_INTERNAL,
	THERMAL_TYPE_CI,
	THERMAL_TYPE_KV,
};

enum amdgpu_dpm_auto_throttle_src {
	AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL,
	AMDGPU_DPM_AUTO_THROTTLE_SRC_EXTERNAL
};

enum amdgpu_dpm_event_src {
	AMDGPU_DPM_EVENT_SRC_ANALOG = 0,
	AMDGPU_DPM_EVENT_SRC_EXTERNAL = 1,
	AMDGPU_DPM_EVENT_SRC_DIGITAL = 2,
	AMDGPU_DPM_EVENT_SRC_ANALOG_OR_EXTERNAL = 3,
	AMDGPU_DPM_EVENT_SRC_DIGIAL_OR_EXTERNAL = 4
};

struct amdgpu_ps {
	u32 caps; /* vbios flags */
	u32 class; /* vbios flags */
	u32 class2; /* vbios flags */
	/* UVD clocks */
	u32 vclk;
	u32 dclk;
	/* VCE clocks */
	u32 evclk;
	u32 ecclk;
	bool vce_active;
	enum amd_vce_level vce_level;
	/* asic priv */
	void *ps_priv;
};

struct amdgpu_dpm_thermal {
	/* thermal interrupt work */
	struct work_struct work;
	/* low temperature threshold */
	int                min_temp;
	/* high temperature threshold */
	int                max_temp;
	/* was last interrupt low to high or high to low */
	bool               high_to_low;
	/* interrupt source */
	struct amdgpu_irq_src	irq;
};

enum amdgpu_clk_action
{
	AMDGPU_SCLK_UP = 1,
	AMDGPU_SCLK_DOWN
};

struct amdgpu_blacklist_clocks
{
	u32 sclk;
	u32 mclk;
	enum amdgpu_clk_action action;
};

struct amdgpu_clock_and_voltage_limits {
	u32 sclk;
	u32 mclk;
	u16 vddc;
	u16 vddci;
};

struct amdgpu_clock_array {
	u32 count;
	u32 *values;
};

struct amdgpu_clock_voltage_dependency_entry {
	u32 clk;
	u16 v;
};

struct amdgpu_clock_voltage_dependency_table {
	u32 count;
	struct amdgpu_clock_voltage_dependency_entry *entries;
};

union amdgpu_cac_leakage_entry {
	struct {
		u16 vddc;
		u32 leakage;
	};
	struct {
		u16 vddc1;
		u16 vddc2;
		u16 vddc3;
	};
};

struct amdgpu_cac_leakage_table {
	u32 count;
	union amdgpu_cac_leakage_entry *entries;
};

struct amdgpu_phase_shedding_limits_entry {
	u16 voltage;
	u32 sclk;
	u32 mclk;
};

struct amdgpu_phase_shedding_limits_table {
	u32 count;
	struct amdgpu_phase_shedding_limits_entry *entries;
};

struct amdgpu_uvd_clock_voltage_dependency_entry {
	u32 vclk;
	u32 dclk;
	u16 v;
};

struct amdgpu_uvd_clock_voltage_dependency_table {
	u8 count;
	struct amdgpu_uvd_clock_voltage_dependency_entry *entries;
};

struct amdgpu_vce_clock_voltage_dependency_entry {
	u32 ecclk;
	u32 evclk;
	u16 v;
};

struct amdgpu_vce_clock_voltage_dependency_table {
	u8 count;
	struct amdgpu_vce_clock_voltage_dependency_entry *entries;
};

struct amdgpu_ppm_table {
	u8 ppm_design;
	u16 cpu_core_number;
	u32 platform_tdp;
	u32 small_ac_platform_tdp;
	u32 platform_tdc;
	u32 small_ac_platform_tdc;
	u32 apu_tdp;
	u32 dgpu_tdp;
	u32 dgpu_ulv_power;
	u32 tj_max;
};

struct amdgpu_cac_tdp_table {
	u16 tdp;
	u16 configurable_tdp;
	u16 tdc;
	u16 battery_power_limit;
	u16 small_power_limit;
	u16 low_cac_leakage;
	u16 high_cac_leakage;
	u16 maximum_power_delivery_limit;
};

struct amdgpu_dpm_dynamic_state {
	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_sclk;
	struct amdgpu_clock_voltage_dependency_table vddci_dependency_on_mclk;
	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_mclk;
	struct amdgpu_clock_voltage_dependency_table mvdd_dependency_on_mclk;
	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_dispclk;
	struct amdgpu_uvd_clock_voltage_dependency_table uvd_clock_voltage_dependency_table;
	struct amdgpu_vce_clock_voltage_dependency_table vce_clock_voltage_dependency_table;
	struct amdgpu_clock_voltage_dependency_table samu_clock_voltage_dependency_table;
	struct amdgpu_clock_voltage_dependency_table acp_clock_voltage_dependency_table;
	struct amdgpu_clock_voltage_dependency_table vddgfx_dependency_on_sclk;
	struct amdgpu_clock_array valid_sclk_values;
	struct amdgpu_clock_array valid_mclk_values;
	struct amdgpu_clock_and_voltage_limits max_clock_voltage_on_dc;
	struct amdgpu_clock_and_voltage_limits max_clock_voltage_on_ac;
	u32 mclk_sclk_ratio;
	u32 sclk_mclk_delta;
	u16 vddc_vddci_delta;
	u16 min_vddc_for_pcie_gen2;
	struct amdgpu_cac_leakage_table cac_leakage_table;
	struct amdgpu_phase_shedding_limits_table phase_shedding_limits_table;
	struct amdgpu_ppm_table *ppm_table;
	struct amdgpu_cac_tdp_table *cac_tdp_table;
};

struct amdgpu_dpm_fan {
	u16 t_min;
	u16 t_med;
	u16 t_high;
	u16 pwm_min;
	u16 pwm_med;
	u16 pwm_high;
	u8 t_hyst;
	u32 cycle_delay;
	u16 t_max;
	u8 control_mode;
	u16 default_max_fan_pwm;
	u16 default_fan_output_sensitivity;
	u16 fan_output_sensitivity;
	bool ucode_fan_control;
};

enum amdgpu_pcie_gen {
	AMDGPU_PCIE_GEN1 = 0,
	AMDGPU_PCIE_GEN2 = 1,
	AMDGPU_PCIE_GEN3 = 2,
	AMDGPU_PCIE_GEN_INVALID = 0xffff
};

enum amdgpu_dpm_forced_level {
	AMDGPU_DPM_FORCED_LEVEL_AUTO = 0,
	AMDGPU_DPM_FORCED_LEVEL_LOW = 1,
	AMDGPU_DPM_FORCED_LEVEL_HIGH = 2,
	AMDGPU_DPM_FORCED_LEVEL_MANUAL = 3,
};

struct amdgpu_dpm_funcs {
	int (*get_temperature)(struct amdgpu_device *adev);
	int (*pre_set_power_state)(struct amdgpu_device *adev);
	int (*set_power_state)(struct amdgpu_device *adev);
	void (*post_set_power_state)(struct amdgpu_device *adev);
	void (*display_configuration_changed)(struct amdgpu_device *adev);
	u32 (*get_sclk)(struct amdgpu_device *adev, bool low);
	u32 (*get_mclk)(struct amdgpu_device *adev, bool low);
	void (*print_power_state)(struct amdgpu_device *adev, struct amdgpu_ps *ps);
	void (*debugfs_print_current_performance_level)(struct amdgpu_device *adev, struct seq_file *m);
	int (*force_performance_level)(struct amdgpu_device *adev, enum amdgpu_dpm_forced_level level);
	bool (*vblank_too_short)(struct amdgpu_device *adev);
	void (*powergate_uvd)(struct amdgpu_device *adev, bool gate);
	void (*powergate_vce)(struct amdgpu_device *adev, bool gate);
	void (*enable_bapm)(struct amdgpu_device *adev, bool enable);
	void (*set_fan_control_mode)(struct amdgpu_device *adev, u32 mode);
	u32 (*get_fan_control_mode)(struct amdgpu_device *adev);
	int (*set_fan_speed_percent)(struct amdgpu_device *adev, u32 speed);
	int (*get_fan_speed_percent)(struct amdgpu_device *adev, u32 *speed);
	int (*force_clock_level)(struct amdgpu_device *adev, enum pp_clock_type type, uint32_t mask);
	int (*print_clock_levels)(struct amdgpu_device *adev, enum pp_clock_type type, char *buf);
	int (*get_sclk_od)(struct amdgpu_device *adev);
	int (*set_sclk_od)(struct amdgpu_device *adev, uint32_t value);
	int (*get_mclk_od)(struct amdgpu_device *adev);
	int (*set_mclk_od)(struct amdgpu_device *adev, uint32_t value);
};

#define amdgpu_dpm_pre_set_power_state(adev) (adev)->pm.funcs->pre_set_power_state((adev))
#define amdgpu_dpm_set_power_state(adev) (adev)->pm.funcs->set_power_state((adev))
#define amdgpu_dpm_post_set_power_state(adev) (adev)->pm.funcs->post_set_power_state((adev))
#define amdgpu_dpm_display_configuration_changed(adev) (adev)->pm.funcs->display_configuration_changed((adev))
#define amdgpu_dpm_print_power_state(adev, ps) (adev)->pm.funcs->print_power_state((adev), (ps))
#define amdgpu_dpm_vblank_too_short(adev) (adev)->pm.funcs->vblank_too_short((adev))
#define amdgpu_dpm_enable_bapm(adev, e) (adev)->pm.funcs->enable_bapm((adev), (e))

#define amdgpu_dpm_read_sensor(adev, idx, value) \
	((adev)->pp_enabled ? \
		(adev)->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, (idx), (value)) : \
		-EINVAL)

#define amdgpu_dpm_get_temperature(adev) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->get_temperature((adev)->powerplay.pp_handle) : \
	      (adev)->pm.funcs->get_temperature((adev)))

#define amdgpu_dpm_set_fan_control_mode(adev, m) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->set_fan_control_mode((adev)->powerplay.pp_handle, (m)) : \
	      (adev)->pm.funcs->set_fan_control_mode((adev), (m)))

#define amdgpu_dpm_get_fan_control_mode(adev) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->get_fan_control_mode((adev)->powerplay.pp_handle) : \
	      (adev)->pm.funcs->get_fan_control_mode((adev)))

#define amdgpu_dpm_set_fan_speed_percent(adev, s) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->set_fan_speed_percent((adev)->powerplay.pp_handle, (s)) : \
	      (adev)->pm.funcs->set_fan_speed_percent((adev), (s)))

#define amdgpu_dpm_get_fan_speed_percent(adev, s) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->get_fan_speed_percent((adev)->powerplay.pp_handle, (s)) : \
	      (adev)->pm.funcs->get_fan_speed_percent((adev), (s)))

#define amdgpu_dpm_get_sclk(adev, l) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->get_sclk((adev)->powerplay.pp_handle, (l)) : \
		(adev)->pm.funcs->get_sclk((adev), (l)))

#define amdgpu_dpm_get_mclk(adev, l)  \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->get_mclk((adev)->powerplay.pp_handle, (l)) : \
	      (adev)->pm.funcs->get_mclk((adev), (l)))


#define amdgpu_dpm_force_performance_level(adev, l) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->force_performance_level((adev)->powerplay.pp_handle, (l)) : \
	      (adev)->pm.funcs->force_performance_level((adev), (l)))

#define amdgpu_dpm_powergate_uvd(adev, g) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->powergate_uvd((adev)->powerplay.pp_handle, (g)) : \
	      (adev)->pm.funcs->powergate_uvd((adev), (g)))

#define amdgpu_dpm_powergate_vce(adev, g) \
	((adev)->pp_enabled ?						\
	      (adev)->powerplay.pp_funcs->powergate_vce((adev)->powerplay.pp_handle, (g)) : \
	      (adev)->pm.funcs->powergate_vce((adev), (g)))

#define amdgpu_dpm_get_current_power_state(adev) \
	(adev)->powerplay.pp_funcs->get_current_power_state((adev)->powerplay.pp_handle)

#define amdgpu_dpm_get_performance_level(adev) \
	(adev)->powerplay.pp_funcs->get_performance_level((adev)->powerplay.pp_handle)

#define amdgpu_dpm_get_pp_num_states(adev, data) \
	(adev)->powerplay.pp_funcs->get_pp_num_states((adev)->powerplay.pp_handle, data)

#define amdgpu_dpm_get_pp_table(adev, table) \
	(adev)->powerplay.pp_funcs->get_pp_table((adev)->powerplay.pp_handle, table)

#define amdgpu_dpm_set_pp_table(adev, buf, size) \
	(adev)->powerplay.pp_funcs->set_pp_table((adev)->powerplay.pp_handle, buf, size)

#define amdgpu_dpm_print_clock_levels(adev, type, buf) \
	(adev)->powerplay.pp_funcs->print_clock_levels((adev)->powerplay.pp_handle, type, buf)

#define amdgpu_dpm_force_clock_level(adev, type, level) \
		(adev)->powerplay.pp_funcs->force_clock_level((adev)->powerplay.pp_handle, type, level)

#define amdgpu_dpm_get_sclk_od(adev) \
	(adev)->powerplay.pp_funcs->get_sclk_od((adev)->powerplay.pp_handle)

#define amdgpu_dpm_set_sclk_od(adev, value) \
	(adev)->powerplay.pp_funcs->set_sclk_od((adev)->powerplay.pp_handle, value)

#define amdgpu_dpm_get_mclk_od(adev) \
	((adev)->powerplay.pp_funcs->get_mclk_od((adev)->powerplay.pp_handle))

#define amdgpu_dpm_set_mclk_od(adev, value) \
	((adev)->powerplay.pp_funcs->set_mclk_od((adev)->powerplay.pp_handle, value))

#define amdgpu_dpm_dispatch_task(adev, event_id, input, output)		\
	(adev)->powerplay.pp_funcs->dispatch_tasks((adev)->powerplay.pp_handle, (event_id), (input), (output))


struct amdgpu_dpm {
	struct amdgpu_ps        *ps;
	/* number of valid power states */
	int                     num_ps;
	/* current power state that is active */
	struct amdgpu_ps        *current_ps;
	/* requested power state */
	struct amdgpu_ps        *requested_ps;
	/* boot up power state */
	struct amdgpu_ps        *boot_ps;
	/* default uvd power state */
	struct amdgpu_ps        *uvd_ps;
	/* vce requirements */
	struct amd_vce_state vce_states[AMD_MAX_VCE_LEVELS];
	enum amd_vce_level vce_level;
	enum amd_pm_state_type state;
	enum amd_pm_state_type user_state;
	u32                     platform_caps;
	u32                     voltage_response_time;
	u32                     backbias_response_time;
	void                    *priv;
	u32			new_active_crtcs;
	int			new_active_crtc_count;
	u32			current_active_crtcs;
	int			current_active_crtc_count;
	struct amdgpu_dpm_dynamic_state dyn_state;
	struct amdgpu_dpm_fan fan;
	u32 tdp_limit;
	u32 near_tdp_limit;
	u32 near_tdp_limit_adjusted;
	u32 sq_ramping_threshold;
	u32 cac_leakage;
	u16 tdp_od_limit;
	u32 tdp_adjustment;
	u16 load_line_slope;
	bool power_control;
	bool ac_power;
	/* special states active */
	bool                    thermal_active;
	bool                    uvd_active;
	bool                    vce_active;
	/* thermal handling */
	struct amdgpu_dpm_thermal thermal;
	/* forced levels */
	enum amdgpu_dpm_forced_level forced_level;
};

struct amdgpu_pm {
	struct mutex		mutex;
	u32                     current_sclk;
	u32                     current_mclk;
	u32                     default_sclk;
	u32                     default_mclk;
	struct amdgpu_i2c_chan *i2c_bus;
	/* internal thermal controller on rv6xx+ */
	enum amdgpu_int_thermal_type int_thermal_type;
	struct device	        *int_hwmon_dev;
	/* fan control parameters */
	bool                    no_fan;
	u8                      fan_pulses_per_revolution;
	u8                      fan_min_rpm;
	u8                      fan_max_rpm;
	/* dpm */
	bool                    dpm_enabled;
	bool                    sysfs_initialized;
	struct amdgpu_dpm       dpm;
	const struct firmware	*fw;	/* SMC firmware */
	uint32_t                fw_version;
	const struct amdgpu_dpm_funcs *funcs;
	uint32_t                pcie_gen_mask;
	uint32_t                pcie_mlw_mask;
	struct amd_pp_display_configuration pm_display_cfg;/* set by DAL */
};

#define R600_SSTU_DFLT                               0
#define R600_SST_DFLT                                0x00C8

/* XXX are these ok? */
#define R600_TEMP_RANGE_MIN (90 * 1000)
#define R600_TEMP_RANGE_MAX (120 * 1000)

#define FDO_PWM_MODE_STATIC  1
#define FDO_PWM_MODE_STATIC_RPM 5

enum amdgpu_td {
	AMDGPU_TD_AUTO,
	AMDGPU_TD_UP,
	AMDGPU_TD_DOWN,
};

enum amdgpu_display_watermark {
	AMDGPU_DISPLAY_WATERMARK_LOW = 0,
	AMDGPU_DISPLAY_WATERMARK_HIGH = 1,
};

enum amdgpu_display_gap
{
    AMDGPU_PM_DISPLAY_GAP_VBLANK_OR_WM = 0,
    AMDGPU_PM_DISPLAY_GAP_VBLANK       = 1,
    AMDGPU_PM_DISPLAY_GAP_WATERMARK    = 2,
    AMDGPU_PM_DISPLAY_GAP_IGNORE       = 3,
};

void amdgpu_dpm_print_class_info(u32 class, u32 class2);
void amdgpu_dpm_print_cap_info(u32 caps);
void amdgpu_dpm_print_ps_status(struct amdgpu_device *adev,
				struct amdgpu_ps *rps);
u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev);
u32 amdgpu_dpm_get_vrefresh(struct amdgpu_device *adev);
bool amdgpu_is_uvd_state(u32 class, u32 class2);
void amdgpu_calculate_u_and_p(u32 i, u32 r_c, u32 p_b,
			      u32 *p, u32 *u);
int amdgpu_calculate_at(u32 t, u32 h, u32 fh, u32 fl, u32 *tl, u32 *th);

bool amdgpu_is_internal_thermal_sensor(enum amdgpu_int_thermal_type sensor);

int amdgpu_get_platform_caps(struct amdgpu_device *adev);

int amdgpu_parse_extended_power_table(struct amdgpu_device *adev);
void amdgpu_free_extended_power_table(struct amdgpu_device *adev);

void amdgpu_add_thermal_controller(struct amdgpu_device *adev);

enum amdgpu_pcie_gen amdgpu_get_pcie_gen_support(struct amdgpu_device *adev,
						 u32 sys_mask,
						 enum amdgpu_pcie_gen asic_gen,
						 enum amdgpu_pcie_gen default_gen);

u16 amdgpu_get_pcie_lane_support(struct amdgpu_device *adev,
				 u16 asic_lanes,
				 u16 default_lanes);
u8 amdgpu_encode_pci_lane_width(u32 lanes);

#endif