drm/radeon/dpm: add smc fan control for CI (v2)

Enable smc fan control for CI boards.  Should
reduce the fan noise on systems with a higher
default fan profile.

v2: disable by default, add additional fan setup, rpm control

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73338

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-09-15 00:15:22 -04:00
parent 39471ad39d
commit e03cea367f
8 changed files with 443 additions and 4 deletions

View File

@ -184,6 +184,9 @@ static int ci_set_overdrive_target_tdp(struct radeon_device *rdev,
u32 target_tdp);
static int ci_update_uvd_dpm(struct radeon_device *rdev, bool gate);
static PPSMC_Result ci_send_msg_to_smc_with_parameter(struct radeon_device *rdev,
PPSMC_Msg msg, u32 parameter);
static struct ci_power_info *ci_get_pi(struct radeon_device *rdev)
{
struct ci_power_info *pi = rdev->pm.dpm.priv;
@ -355,6 +358,21 @@ static int ci_populate_dw8(struct radeon_device *rdev)
return 0;
}
static int ci_populate_fuzzy_fan(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
if ((rdev->pm.dpm.fan.fan_output_sensitivity & (1 << 15)) ||
(rdev->pm.dpm.fan.fan_output_sensitivity == 0))
rdev->pm.dpm.fan.fan_output_sensitivity =
rdev->pm.dpm.fan.default_fan_output_sensitivity;
pi->smc_powertune_table.FuzzyFan_PwmSetDelta =
cpu_to_be16(rdev->pm.dpm.fan.fan_output_sensitivity);
return 0;
}
static int ci_min_max_v_gnbl_pm_lid_from_bapm_vddc(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
@ -478,6 +496,9 @@ static int ci_populate_pm_base(struct radeon_device *rdev)
if (ret)
return ret;
ret = ci_populate_dw8(rdev);
if (ret)
return ret;
ret = ci_populate_fuzzy_fan(rdev);
if (ret)
return ret;
ret = ci_min_max_v_gnbl_pm_lid_from_bapm_vddc(rdev);
@ -859,6 +880,7 @@ static int ci_thermal_enable_alert(struct radeon_device *rdev,
if (enable) {
thermal_int &= ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
WREG32_SMC(CG_THERMAL_INT, thermal_int);
rdev->irq.dpm_thermal = false;
result = ci_send_msg_to_smc(rdev, PPSMC_MSG_Thermal_Cntl_Enable);
if (result != PPSMC_Result_OK) {
@ -867,6 +889,7 @@ static int ci_thermal_enable_alert(struct radeon_device *rdev,
}
} else {
thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
WREG32_SMC(CG_THERMAL_INT, thermal_int);
rdev->irq.dpm_thermal = true;
result = ci_send_msg_to_smc(rdev, PPSMC_MSG_Thermal_Cntl_Disable);
if (result != PPSMC_Result_OK) {
@ -875,11 +898,324 @@ static int ci_thermal_enable_alert(struct radeon_device *rdev,
}
}
WREG32_SMC(CG_THERMAL_INT, thermal_int);
return 0;
}
static void ci_fan_ctrl_set_static_mode(struct radeon_device *rdev, u32 mode)
{
struct ci_power_info *pi = ci_get_pi(rdev);
u32 tmp;
if (pi->fan_ctrl_is_in_default_mode) {
tmp = (RREG32_SMC(CG_FDO_CTRL2) & FDO_PWM_MODE_MASK) >> FDO_PWM_MODE_SHIFT;
pi->fan_ctrl_default_mode = tmp;
tmp = (RREG32_SMC(CG_FDO_CTRL2) & TMIN_MASK) >> TMIN_SHIFT;
pi->t_min = tmp;
pi->fan_ctrl_is_in_default_mode = false;
}
tmp = RREG32_SMC(CG_FDO_CTRL2) & ~TMIN_MASK;
tmp |= TMIN(0);
WREG32_SMC(CG_FDO_CTRL2, tmp);
tmp = RREG32_SMC(CG_FDO_CTRL2) & FDO_PWM_MODE_MASK;
tmp |= FDO_PWM_MODE(mode);
WREG32_SMC(CG_FDO_CTRL2, tmp);
}
static int ci_thermal_setup_fan_table(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
SMU7_Discrete_FanTable fan_table = { FDO_MODE_HARDWARE };
u32 duty100;
u32 t_diff1, t_diff2, pwm_diff1, pwm_diff2;
u16 fdo_min, slope1, slope2;
u32 reference_clock, tmp;
int ret;
u64 tmp64;
if (!pi->fan_table_start) {
rdev->pm.dpm.fan.ucode_fan_control = false;
return 0;
}
duty100 = (RREG32_SMC(CG_FDO_CTRL1) & FMAX_DUTY100_MASK) >> FMAX_DUTY100_SHIFT;
if (duty100 == 0) {
rdev->pm.dpm.fan.ucode_fan_control = false;
return 0;
}
tmp64 = (u64)rdev->pm.dpm.fan.pwm_min * duty100;
do_div(tmp64, 10000);
fdo_min = (u16)tmp64;
t_diff1 = rdev->pm.dpm.fan.t_med - rdev->pm.dpm.fan.t_min;
t_diff2 = rdev->pm.dpm.fan.t_high - rdev->pm.dpm.fan.t_med;
pwm_diff1 = rdev->pm.dpm.fan.pwm_med - rdev->pm.dpm.fan.pwm_min;
pwm_diff2 = rdev->pm.dpm.fan.pwm_high - rdev->pm.dpm.fan.pwm_med;
slope1 = (u16)((50 + ((16 * duty100 * pwm_diff1) / t_diff1)) / 100);
slope2 = (u16)((50 + ((16 * duty100 * pwm_diff2) / t_diff2)) / 100);
fan_table.TempMin = cpu_to_be16((50 + rdev->pm.dpm.fan.t_min) / 100);
fan_table.TempMed = cpu_to_be16((50 + rdev->pm.dpm.fan.t_med) / 100);
fan_table.TempMax = cpu_to_be16((50 + rdev->pm.dpm.fan.t_max) / 100);
fan_table.Slope1 = cpu_to_be16(slope1);
fan_table.Slope2 = cpu_to_be16(slope2);
fan_table.FdoMin = cpu_to_be16(fdo_min);
fan_table.HystDown = cpu_to_be16(rdev->pm.dpm.fan.t_hyst);
fan_table.HystUp = cpu_to_be16(1);
fan_table.HystSlope = cpu_to_be16(1);
fan_table.TempRespLim = cpu_to_be16(5);
reference_clock = radeon_get_xclk(rdev);
fan_table.RefreshPeriod = cpu_to_be32((rdev->pm.dpm.fan.cycle_delay *
reference_clock) / 1600);
fan_table.FdoMax = cpu_to_be16((u16)duty100);
tmp = (RREG32_SMC(CG_MULT_THERMAL_CTRL) & TEMP_SEL_MASK) >> TEMP_SEL_SHIFT;
fan_table.TempSrc = (uint8_t)tmp;
ret = ci_copy_bytes_to_smc(rdev,
pi->fan_table_start,
(u8 *)(&fan_table),
sizeof(fan_table),
pi->sram_end);
if (ret) {
DRM_ERROR("Failed to load fan table to the SMC.");
rdev->pm.dpm.fan.ucode_fan_control = false;
}
return 0;
}
static int ci_fan_ctrl_start_smc_fan_control(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
PPSMC_Result ret;
if (pi->caps_od_fuzzy_fan_control_support) {
ret = ci_send_msg_to_smc_with_parameter(rdev,
PPSMC_StartFanControl,
FAN_CONTROL_FUZZY);
if (ret != PPSMC_Result_OK)
return -EINVAL;
ret = ci_send_msg_to_smc_with_parameter(rdev,
PPSMC_MSG_SetFanPwmMax,
rdev->pm.dpm.fan.default_max_fan_pwm);
if (ret != PPSMC_Result_OK)
return -EINVAL;
} else {
ret = ci_send_msg_to_smc_with_parameter(rdev,
PPSMC_StartFanControl,
FAN_CONTROL_TABLE);
if (ret != PPSMC_Result_OK)
return -EINVAL;
}
return 0;
}
#if 0
static int ci_fan_ctrl_stop_smc_fan_control(struct radeon_device *rdev)
{
PPSMC_Result ret;
ret = ci_send_msg_to_smc(rdev, PPSMC_StopFanControl);
if (ret == PPSMC_Result_OK)
return 0;
else
return -EINVAL;
}
static int ci_fan_ctrl_get_fan_speed_percent(struct radeon_device *rdev,
u32 *speed)
{
u32 duty, duty100;
u64 tmp64;
if (rdev->pm.no_fan)
return -ENOENT;
duty100 = (RREG32_SMC(CG_FDO_CTRL1) & FMAX_DUTY100_MASK) >> FMAX_DUTY100_SHIFT;
duty = (RREG32_SMC(CG_THERMAL_STATUS) & FDO_PWM_DUTY_MASK) >> FDO_PWM_DUTY_SHIFT;
if (duty100 == 0)
return -EINVAL;
tmp64 = (u64)duty * 100;
do_div(tmp64, duty100);
*speed = (u32)tmp64;
if (*speed > 100)
*speed = 100;
return 0;
}
static int ci_fan_ctrl_set_fan_speed_percent(struct radeon_device *rdev,
u32 speed)
{
u32 tmp;
u32 duty, duty100;
u64 tmp64;
if (rdev->pm.no_fan)
return -ENOENT;
if (speed > 100)
return -EINVAL;
if (rdev->pm.dpm.fan.ucode_fan_control)
ci_fan_ctrl_stop_smc_fan_control(rdev);
duty100 = (RREG32_SMC(CG_FDO_CTRL1) & FMAX_DUTY100_MASK) >> FMAX_DUTY100_SHIFT;
if (duty100 == 0)
return -EINVAL;
tmp64 = (u64)speed * duty100;
do_div(tmp64, 100);
duty = (u32)tmp64;
tmp = RREG32_SMC(CG_FDO_CTRL0) & ~FDO_STATIC_DUTY_MASK;
tmp |= FDO_STATIC_DUTY(duty);
WREG32_SMC(CG_FDO_CTRL0, tmp);
ci_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC);
return 0;
}
static int ci_fan_ctrl_get_fan_speed_rpm(struct radeon_device *rdev,
u32 *speed)
{
u32 tach_period;
u32 xclk = radeon_get_xclk(rdev);
if (rdev->pm.no_fan)
return -ENOENT;
if (rdev->pm.fan_pulses_per_revolution == 0)
return -ENOENT;
tach_period = (RREG32_SMC(CG_TACH_STATUS) & TACH_PERIOD_MASK) >> TACH_PERIOD_SHIFT;
if (tach_period == 0)
return -ENOENT;
*speed = 60 * xclk * 10000 / tach_period;
return 0;
}
static int ci_fan_ctrl_set_fan_speed_rpm(struct radeon_device *rdev,
u32 speed)
{
u32 tach_period, tmp;
u32 xclk = radeon_get_xclk(rdev);
if (rdev->pm.no_fan)
return -ENOENT;
if (rdev->pm.fan_pulses_per_revolution == 0)
return -ENOENT;
if ((speed < rdev->pm.fan_min_rpm) ||
(speed > rdev->pm.fan_max_rpm))
return -EINVAL;
if (rdev->pm.dpm.fan.ucode_fan_control)
ci_fan_ctrl_stop_smc_fan_control(rdev);
tach_period = 60 * xclk * 10000 / (8 * speed);
tmp = RREG32_SMC(CG_TACH_CTRL) & ~TARGET_PERIOD_MASK;
tmp |= TARGET_PERIOD(tach_period);
WREG32_SMC(CG_TACH_CTRL, tmp);
ci_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC);
return 0;
}
#endif
static void ci_fan_ctrl_set_default_mode(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
u32 tmp;
if (!pi->fan_ctrl_is_in_default_mode) {
tmp = RREG32_SMC(CG_FDO_CTRL2) & ~FDO_PWM_MODE_MASK;
tmp |= FDO_PWM_MODE(pi->fan_ctrl_default_mode);
WREG32_SMC(CG_FDO_CTRL2, tmp);
tmp = RREG32_SMC(CG_FDO_CTRL2) & TMIN_MASK;
tmp |= TMIN(pi->t_min);
WREG32_SMC(CG_FDO_CTRL2, tmp);
pi->fan_ctrl_is_in_default_mode = true;
}
}
static void ci_thermal_start_smc_fan_control(struct radeon_device *rdev)
{
if (rdev->pm.dpm.fan.ucode_fan_control) {
ci_fan_ctrl_start_smc_fan_control(rdev);
ci_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC);
}
}
static void ci_thermal_initialize(struct radeon_device *rdev)
{
u32 tmp;
if (rdev->pm.fan_pulses_per_revolution) {
tmp = RREG32_SMC(CG_TACH_CTRL) & ~EDGE_PER_REV_MASK;
tmp |= EDGE_PER_REV(rdev->pm.fan_pulses_per_revolution -1);
WREG32_SMC(CG_TACH_CTRL, tmp);
}
tmp = RREG32_SMC(CG_FDO_CTRL2) & ~TACH_PWM_RESP_RATE_MASK;
tmp |= TACH_PWM_RESP_RATE(0x28);
WREG32_SMC(CG_FDO_CTRL2, tmp);
}
static int ci_thermal_start_thermal_controller(struct radeon_device *rdev)
{
int ret;
ci_thermal_initialize(rdev);
ret = ci_thermal_set_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
if (ret)
return ret;
ret = ci_thermal_enable_alert(rdev, true);
if (ret)
return ret;
if (rdev->pm.dpm.fan.ucode_fan_control) {
ret = ci_thermal_setup_fan_table(rdev);
if (ret)
return ret;
ci_thermal_start_smc_fan_control(rdev);
}
return 0;
}
static void ci_thermal_stop_thermal_controller(struct radeon_device *rdev)
{
if (!rdev->pm.no_fan)
ci_fan_ctrl_set_default_mode(rdev);
}
#if 0
static int ci_read_smc_soft_register(struct radeon_device *rdev,
u16 reg_offset, u32 *value)
@ -4841,6 +5177,8 @@ int ci_dpm_enable(struct radeon_device *rdev)
ci_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
ci_thermal_start_thermal_controller(rdev);
ci_update_current_ps(rdev, boot_ps);
return 0;
@ -4886,6 +5224,8 @@ void ci_dpm_disable(struct radeon_device *rdev)
if (!ci_is_smc_running(rdev))
return;
ci_thermal_stop_thermal_controller(rdev);
if (pi->thermal_protection)
ci_enable_thermal_protection(rdev, false);
ci_enable_power_containment(rdev, false);
@ -5473,6 +5813,9 @@ int ci_dpm_init(struct radeon_device *rdev)
rdev->pm.dpm.dyn_state.max_clock_voltage_on_dc =
rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac;
pi->fan_ctrl_is_in_default_mode = true;
rdev->pm.dpm.fan.ucode_fan_control = false;
return 0;
}

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@ -266,6 +266,7 @@ struct ci_power_info {
bool caps_automatic_dc_transition;
bool caps_sclk_throttle_low_notification;
bool caps_dynamic_ac_timing;
bool caps_od_fuzzy_fan_control_support;
/* flags */
bool thermal_protection;
bool pcie_performance_request;
@ -287,6 +288,10 @@ struct ci_power_info {
struct ci_ps current_ps;
struct radeon_ps requested_rps;
struct ci_ps requested_ps;
/* fan control */
bool fan_ctrl_is_in_default_mode;
u32 t_min;
u32 fan_ctrl_default_mode;
};
#define CISLANDS_VOLTAGE_CONTROL_NONE 0x0

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@ -186,7 +186,10 @@
#define DIG_THERM_DPM(x) ((x) << 14)
#define DIG_THERM_DPM_MASK 0x003FC000
#define DIG_THERM_DPM_SHIFT 14
#define CG_THERMAL_STATUS 0xC0300008
#define FDO_PWM_DUTY(x) ((x) << 9)
#define FDO_PWM_DUTY_MASK (0xff << 9)
#define FDO_PWM_DUTY_SHIFT 9
#define CG_THERMAL_INT 0xC030000C
#define CI_DIG_THERM_INTH(x) ((x) << 8)
#define CI_DIG_THERM_INTH_MASK 0x0000FF00
@ -196,7 +199,10 @@
#define CI_DIG_THERM_INTL_SHIFT 16
#define THERM_INT_MASK_HIGH (1 << 24)
#define THERM_INT_MASK_LOW (1 << 25)
#define CG_MULT_THERMAL_CTRL 0xC0300010
#define TEMP_SEL(x) ((x) << 20)
#define TEMP_SEL_MASK (0xff << 20)
#define TEMP_SEL_SHIFT 20
#define CG_MULT_THERMAL_STATUS 0xC0300014
#define ASIC_MAX_TEMP(x) ((x) << 0)
#define ASIC_MAX_TEMP_MASK 0x000001ff
@ -205,6 +211,36 @@
#define CTF_TEMP_MASK 0x0003fe00
#define CTF_TEMP_SHIFT 9
#define CG_FDO_CTRL0 0xC0300064
#define FDO_STATIC_DUTY(x) ((x) << 0)
#define FDO_STATIC_DUTY_MASK 0x0000000F
#define FDO_STATIC_DUTY_SHIFT 0
#define CG_FDO_CTRL1 0xC0300068
#define FMAX_DUTY100(x) ((x) << 0)
#define FMAX_DUTY100_MASK 0x0000000F
#define FMAX_DUTY100_SHIFT 0
#define CG_FDO_CTRL2 0xC030006C
#define TMIN(x) ((x) << 0)
#define TMIN_MASK 0x0000000F
#define TMIN_SHIFT 0
#define FDO_PWM_MODE(x) ((x) << 11)
#define FDO_PWM_MODE_MASK (3 << 11)
#define FDO_PWM_MODE_SHIFT 11
#define TACH_PWM_RESP_RATE(x) ((x) << 25)
#define TACH_PWM_RESP_RATE_MASK (0x7f << 25)
#define TACH_PWM_RESP_RATE_SHIFT 25
#define CG_TACH_CTRL 0xC0300070
# define EDGE_PER_REV(x) ((x) << 0)
# define EDGE_PER_REV_MASK (0x7 << 0)
# define EDGE_PER_REV_SHIFT 0
# define TARGET_PERIOD(x) ((x) << 3)
# define TARGET_PERIOD_MASK 0xfffffff8
# define TARGET_PERIOD_SHIFT 3
#define CG_TACH_STATUS 0xC0300074
# define TACH_PERIOD(x) ((x) << 0)
# define TACH_PERIOD_MASK 0xffffffff
# define TACH_PERIOD_SHIFT 0
#define CG_ECLK_CNTL 0xC05000AC
# define ECLK_DIVIDER_MASK 0x7f
# define ECLK_DIR_CNTL_EN (1 << 8)

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@ -59,6 +59,11 @@
#define FDO_MODE_HARDWARE 0
#define FDO_MODE_PIECE_WISE_LINEAR 1
enum FAN_CONTROL {
FAN_CONTROL_FUZZY,
FAN_CONTROL_TABLE
};
#define PPSMC_Result_OK ((uint8_t)0x01)
#define PPSMC_Result_Failed ((uint8_t)0xFF)
@ -155,6 +160,7 @@ typedef uint8_t PPSMC_Result;
#define PPSMC_MSG_MASTER_DeepSleep_ON ((uint16_t) 0x18F)
#define PPSMC_MSG_MASTER_DeepSleep_OFF ((uint16_t) 0x190)
#define PPSMC_MSG_Remove_DC_Clamp ((uint16_t) 0x191)
#define PPSMC_MSG_SetFanPwmMax ((uint16_t) 0x19A)
#define PPSMC_MSG_API_GetSclkFrequency ((uint16_t) 0x200)
#define PPSMC_MSG_API_GetMclkFrequency ((uint16_t) 0x201)

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@ -96,6 +96,14 @@ typedef struct _ATOM_PPLIB_FANTABLE2
USHORT usTMax; // The max temperature
} ATOM_PPLIB_FANTABLE2;
typedef struct _ATOM_PPLIB_FANTABLE3
{
ATOM_PPLIB_FANTABLE2 basicTable2;
UCHAR ucFanControlMode;
USHORT usFanPWMMax;
USHORT usFanOutputSensitivity;
} ATOM_PPLIB_FANTABLE3;
typedef struct _ATOM_PPLIB_EXTENDEDHEADER
{
USHORT usSize;

View File

@ -811,6 +811,7 @@ union power_info {
union fan_info {
struct _ATOM_PPLIB_FANTABLE fan;
struct _ATOM_PPLIB_FANTABLE2 fan2;
struct _ATOM_PPLIB_FANTABLE3 fan3;
};
static int r600_parse_clk_voltage_dep_table(struct radeon_clock_voltage_dependency_table *radeon_table,
@ -900,6 +901,14 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
else
rdev->pm.dpm.fan.t_max = 10900;
rdev->pm.dpm.fan.cycle_delay = 100000;
if (fan_info->fan.ucFanTableFormat >= 3) {
rdev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode;
rdev->pm.dpm.fan.default_max_fan_pwm =
le16_to_cpu(fan_info->fan3.usFanPWMMax);
rdev->pm.dpm.fan.default_fan_output_sensitivity = 4836;
rdev->pm.dpm.fan.fan_output_sensitivity =
le16_to_cpu(fan_info->fan3.usFanOutputSensitivity);
}
rdev->pm.dpm.fan.ucode_fan_control = true;
}
}

View File

@ -1494,6 +1494,10 @@ struct radeon_dpm_fan {
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;
};

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@ -431,6 +431,31 @@ struct SMU7_Discrete_MCRegisters
typedef struct SMU7_Discrete_MCRegisters SMU7_Discrete_MCRegisters;
struct SMU7_Discrete_FanTable
{
uint16_t FdoMode;
int16_t TempMin;
int16_t TempMed;
int16_t TempMax;
int16_t Slope1;
int16_t Slope2;
int16_t FdoMin;
int16_t HystUp;
int16_t HystDown;
int16_t HystSlope;
int16_t TempRespLim;
int16_t TempCurr;
int16_t SlopeCurr;
int16_t PwmCurr;
uint32_t RefreshPeriod;
int16_t FdoMax;
uint8_t TempSrc;
int8_t Padding;
};
typedef struct SMU7_Discrete_FanTable SMU7_Discrete_FanTable;
struct SMU7_Discrete_PmFuses {
// dw0-dw1
uint8_t BapmVddCVidHiSidd[8];
@ -462,7 +487,10 @@ struct SMU7_Discrete_PmFuses {
uint8_t BapmVddCVidHiSidd2[8];
// dw11-dw12
uint32_t Reserved6[2];
int16_t FuzzyFan_ErrorSetDelta;
int16_t FuzzyFan_ErrorRateSetDelta;
int16_t FuzzyFan_PwmSetDelta;
uint16_t CalcMeasPowerBlend;
// dw13-dw16
uint8_t GnbLPML[16];