From: Alex Deucher Date: Mon, 15 Sep 2014 01:14:14 +0000 (-0400) Subject: drm/radeon/dpm: add smc fan control for SI (v2) X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=39471ad39de827657e6ab69da96496eb0943295e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/radeon/dpm: add smc fan control for SI (v2) Enable smc fan control for SI boards. Should reduce the fan noise on systems with a higher default fan profile. v2: disable by default, add rpm controls bug: https://bugs.freedesktop.org/show_bug.cgi?id=73338 Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/ppsmc.h b/drivers/gpu/drm/radeon/ppsmc.h index 11c0e4d5c0bf..0c4eaa60b6ca 100644 --- a/drivers/gpu/drm/radeon/ppsmc.h +++ b/drivers/gpu/drm/radeon/ppsmc.h @@ -56,6 +56,9 @@ #define PPSMC_STATEFLAG_DEEPSLEEP_THROTTLE 0x20 #define PPSMC_STATEFLAG_DEEPSLEEP_BYPASS 0x40 +#define FDO_MODE_HARDWARE 0 +#define FDO_MODE_PIECE_WISE_LINEAR 1 + #define PPSMC_Result_OK ((uint8_t)0x01) #define PPSMC_Result_Failed ((uint8_t)0xFF) @@ -79,6 +82,8 @@ typedef uint8_t PPSMC_Result; #define PPSMC_MSG_DisableCac ((uint8_t)0x54) #define PPSMC_TDPClampingActive ((uint8_t)0x59) #define PPSMC_TDPClampingInactive ((uint8_t)0x5A) +#define PPSMC_StartFanControl ((uint8_t)0x5B) +#define PPSMC_StopFanControl ((uint8_t)0x5C) #define PPSMC_MSG_NoDisplay ((uint8_t)0x5D) #define PPSMC_MSG_HasDisplay ((uint8_t)0x5E) #define PPSMC_MSG_UVDPowerOFF ((uint8_t)0x60) diff --git a/drivers/gpu/drm/radeon/r600_dpm.h b/drivers/gpu/drm/radeon/r600_dpm.h index 46b9d2a03018..bd499d749bc9 100644 --- a/drivers/gpu/drm/radeon/r600_dpm.h +++ b/drivers/gpu/drm/radeon/r600_dpm.h @@ -96,6 +96,9 @@ #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 r600_power_level { R600_POWER_LEVEL_LOW = 0, R600_POWER_LEVEL_MEDIUM = 1, diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index b59e1d6b27ab..cf4c420b5572 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3396,6 +3396,15 @@ static int si_process_firmware_header(struct radeon_device *rdev) si_pi->mc_reg_table_start = tmp; + ret = si_read_smc_sram_dword(rdev, + SISLANDS_SMC_FIRMWARE_HEADER_LOCATION + + SISLANDS_SMC_FIRMWARE_HEADER_fanTable, + &tmp, si_pi->sram_end); + if (ret) + return ret; + + si_pi->fan_table_start = tmp; + ret = si_read_smc_sram_dword(rdev, SISLANDS_SMC_FIRMWARE_HEADER_LOCATION + SISLANDS_SMC_FIRMWARE_HEADER_mcArbDramAutoRefreshTable, @@ -5825,20 +5834,20 @@ static int si_thermal_enable_alert(struct radeon_device *rdev, if (enable) { PPSMC_Result result; - thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW; - rdev->irq.dpm_thermal = true; + thermal_int &= ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW); + WREG32(CG_THERMAL_INT, thermal_int); + rdev->irq.dpm_thermal = false; result = si_send_msg_to_smc(rdev, PPSMC_MSG_EnableThermalInterrupt); if (result != PPSMC_Result_OK) { DRM_DEBUG_KMS("Could not enable thermal interrupts.\n"); return -EINVAL; } } else { - thermal_int &= ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW); - rdev->irq.dpm_thermal = false; + thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW; + WREG32(CG_THERMAL_INT, thermal_int); + rdev->irq.dpm_thermal = true; } - WREG32(CG_THERMAL_INT, thermal_int); - return 0; } @@ -5867,6 +5876,309 @@ static int si_thermal_set_temperature_range(struct radeon_device *rdev, return 0; } +static void si_fan_ctrl_set_static_mode(struct radeon_device *rdev, u32 mode) +{ + struct si_power_info *si_pi = si_get_pi(rdev); + u32 tmp; + + if (si_pi->fan_ctrl_is_in_default_mode) { + tmp = (RREG32(CG_FDO_CTRL2) & FDO_PWM_MODE_MASK) >> FDO_PWM_MODE_SHIFT; + si_pi->fan_ctrl_default_mode = tmp; + tmp = (RREG32(CG_FDO_CTRL2) & TMIN_MASK) >> TMIN_SHIFT; + si_pi->t_min = tmp; + si_pi->fan_ctrl_is_in_default_mode = false; + } + + tmp = RREG32(CG_FDO_CTRL2) & ~TMIN_MASK; + tmp |= TMIN(0); + WREG32(CG_FDO_CTRL2, tmp); + + tmp = RREG32(CG_FDO_CTRL2) & FDO_PWM_MODE_MASK; + tmp |= FDO_PWM_MODE(mode); + WREG32(CG_FDO_CTRL2, tmp); +} + +static int si_thermal_setup_fan_table(struct radeon_device *rdev) +{ + struct si_power_info *si_pi = si_get_pi(rdev); + PP_SIslands_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 (!si_pi->fan_table_start) { + rdev->pm.dpm.fan.ucode_fan_control = false; + return 0; + } + + duty100 = (RREG32(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.slope1 = cpu_to_be16(slope1); + fan_table.slope2 = cpu_to_be16(slope2); + + fan_table.fdo_min = cpu_to_be16(fdo_min); + + fan_table.hys_down = cpu_to_be16(rdev->pm.dpm.fan.t_hyst); + + fan_table.hys_up = cpu_to_be16(1); + + fan_table.hys_slope = cpu_to_be16(1); + + fan_table.temp_resp_lim = cpu_to_be16(5); + + reference_clock = radeon_get_xclk(rdev); + + fan_table.refresh_period = cpu_to_be32((rdev->pm.dpm.fan.cycle_delay * + reference_clock) / 1600); + + fan_table.fdo_max = cpu_to_be16((u16)duty100); + + tmp = (RREG32(CG_MULT_THERMAL_CTRL) & TEMP_SEL_MASK) >> TEMP_SEL_SHIFT; + fan_table.temp_src = (uint8_t)tmp; + + ret = si_copy_bytes_to_smc(rdev, + si_pi->fan_table_start, + (u8 *)(&fan_table), + sizeof(fan_table), + si_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 si_fan_ctrl_start_smc_fan_control(struct radeon_device *rdev) +{ + PPSMC_Result ret; + + ret = si_send_msg_to_smc(rdev, PPSMC_StartFanControl); + if (ret == PPSMC_Result_OK) + return 0; + else + return -EINVAL; +} + +static int si_fan_ctrl_stop_smc_fan_control(struct radeon_device *rdev) +{ + PPSMC_Result ret; + + ret = si_send_msg_to_smc(rdev, PPSMC_StopFanControl); + if (ret == PPSMC_Result_OK) + return 0; + else + return -EINVAL; +} + +#if 0 +static int si_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(CG_FDO_CTRL1) & FMAX_DUTY100_MASK) >> FMAX_DUTY100_SHIFT; + duty = (RREG32(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 si_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) + si_fan_ctrl_stop_smc_fan_control(rdev); + + duty100 = (RREG32(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(CG_FDO_CTRL0) & ~FDO_STATIC_DUTY_MASK; + tmp |= FDO_STATIC_DUTY(duty); + WREG32(CG_FDO_CTRL0, tmp); + + si_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC); + + return 0; +} + +static int si_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(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 si_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) + si_fan_ctrl_stop_smc_fan_control(rdev); + + tach_period = 60 * xclk * 10000 / (8 * speed); + tmp = RREG32(CG_TACH_CTRL) & ~TARGET_PERIOD_MASK; + tmp |= TARGET_PERIOD(tach_period); + WREG32(CG_TACH_CTRL, tmp); + + si_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC); + + return 0; +} +#endif + +static void si_fan_ctrl_set_default_mode(struct radeon_device *rdev) +{ + struct si_power_info *si_pi = si_get_pi(rdev); + u32 tmp; + + if (!si_pi->fan_ctrl_is_in_default_mode) { + tmp = RREG32(CG_FDO_CTRL2) & ~FDO_PWM_MODE_MASK; + tmp |= FDO_PWM_MODE(si_pi->fan_ctrl_default_mode); + WREG32(CG_FDO_CTRL2, tmp); + + tmp = RREG32(CG_FDO_CTRL2) & TMIN_MASK; + tmp |= TMIN(si_pi->t_min); + WREG32(CG_FDO_CTRL2, tmp); + si_pi->fan_ctrl_is_in_default_mode = true; + } +} + +static void si_thermal_start_smc_fan_control(struct radeon_device *rdev) +{ + if (rdev->pm.dpm.fan.ucode_fan_control) { + si_fan_ctrl_start_smc_fan_control(rdev); + si_fan_ctrl_set_static_mode(rdev, FDO_PWM_MODE_STATIC); + } +} + +static void si_thermal_initialize(struct radeon_device *rdev) +{ + u32 tmp; + + if (rdev->pm.fan_pulses_per_revolution) { + tmp = RREG32(CG_TACH_CTRL) & ~EDGE_PER_REV_MASK; + tmp |= EDGE_PER_REV(rdev->pm.fan_pulses_per_revolution -1); + WREG32(CG_TACH_CTRL, tmp); + } + + tmp = RREG32(CG_FDO_CTRL2) & ~TACH_PWM_RESP_RATE_MASK; + tmp |= TACH_PWM_RESP_RATE(0x28); + WREG32(CG_FDO_CTRL2, tmp); +} + +static int si_thermal_start_thermal_controller(struct radeon_device *rdev) +{ + int ret; + + si_thermal_initialize(rdev); + ret = si_thermal_set_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX); + if (ret) + return ret; + ret = si_thermal_enable_alert(rdev, true); + if (ret) + return ret; + if (rdev->pm.dpm.fan.ucode_fan_control) { + ret = si_halt_smc(rdev); + if (ret) + return ret; + ret = si_thermal_setup_fan_table(rdev); + if (ret) + return ret; + ret = si_resume_smc(rdev); + if (ret) + return ret; + si_thermal_start_smc_fan_control(rdev); + } + + return 0; +} + +static void si_thermal_stop_thermal_controller(struct radeon_device *rdev) +{ + if (!rdev->pm.no_fan) { + si_fan_ctrl_set_default_mode(rdev); + si_fan_ctrl_stop_smc_fan_control(rdev); + } +} + int si_dpm_enable(struct radeon_device *rdev) { struct rv7xx_power_info *pi = rv770_get_pi(rdev); @@ -5979,6 +6291,8 @@ int si_dpm_enable(struct radeon_device *rdev) si_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true); + si_thermal_start_thermal_controller(rdev); + ni_update_current_ps(rdev, boot_ps); return 0; @@ -6019,6 +6333,7 @@ void si_dpm_disable(struct radeon_device *rdev) if (!si_is_smc_running(rdev)) return; + si_thermal_stop_thermal_controller(rdev); si_disable_ulv(rdev); si_clear_vc(rdev); if (pi->thermal_protection) @@ -6557,6 +6872,9 @@ int si_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; + si_pi->fan_ctrl_is_in_default_mode = true; + rdev->pm.dpm.fan.ucode_fan_control = false; + return 0; } diff --git a/drivers/gpu/drm/radeon/si_dpm.h b/drivers/gpu/drm/radeon/si_dpm.h index 8b5c06a0832d..d16bb1b5f10f 100644 --- a/drivers/gpu/drm/radeon/si_dpm.h +++ b/drivers/gpu/drm/radeon/si_dpm.h @@ -182,6 +182,7 @@ struct si_power_info { u32 dte_table_start; u32 spll_table_start; u32 papm_cfg_table_start; + u32 fan_table_start; /* CAC stuff */ const struct si_cac_config_reg *cac_weights; const struct si_cac_config_reg *lcac_config; @@ -197,6 +198,10 @@ struct si_power_info { /* SVI2 */ u8 svd_gpio_id; u8 svc_gpio_id; + /* fan control */ + bool fan_ctrl_is_in_default_mode; + u32 t_min; + u32 fan_ctrl_default_mode; }; #define SISLANDS_INITIAL_STATE_ARB_INDEX 0 diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 6635da9ec986..c549c16a4fe4 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -180,7 +180,10 @@ #define DIG_THERM_DPM(x) ((x) << 14) #define DIG_THERM_DPM_MASK 0x003FC000 #define DIG_THERM_DPM_SHIFT 14 - +#define CG_THERMAL_STATUS 0x704 +#define FDO_PWM_DUTY(x) ((x) << 9) +#define FDO_PWM_DUTY_MASK (0xff << 9) +#define FDO_PWM_DUTY_SHIFT 9 #define CG_THERMAL_INT 0x708 #define DIG_THERM_INTH(x) ((x) << 8) #define DIG_THERM_INTH_MASK 0x0000FF00 @@ -191,6 +194,10 @@ #define THERM_INT_MASK_HIGH (1 << 24) #define THERM_INT_MASK_LOW (1 << 25) +#define CG_MULT_THERMAL_CTRL 0x710 +#define TEMP_SEL(x) ((x) << 20) +#define TEMP_SEL_MASK (0xff << 20) +#define TEMP_SEL_SHIFT 20 #define CG_MULT_THERMAL_STATUS 0x714 #define ASIC_MAX_TEMP(x) ((x) << 0) #define ASIC_MAX_TEMP_MASK 0x000001ff @@ -199,6 +206,37 @@ #define CTF_TEMP_MASK 0x0003fe00 #define CTF_TEMP_SHIFT 9 +#define CG_FDO_CTRL0 0x754 +#define FDO_STATIC_DUTY(x) ((x) << 0) +#define FDO_STATIC_DUTY_MASK 0x0000000F +#define FDO_STATIC_DUTY_SHIFT 0 +#define CG_FDO_CTRL1 0x758 +#define FMAX_DUTY100(x) ((x) << 0) +#define FMAX_DUTY100_MASK 0x0000000F +#define FMAX_DUTY100_SHIFT 0 +#define CG_FDO_CTRL2 0x75C +#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 0x770 +# 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 0x774 +# define TACH_PERIOD(x) ((x) << 0) +# define TACH_PERIOD_MASK 0xffffffff +# define TACH_PERIOD_SHIFT 0 + #define GENERAL_PWRMGT 0x780 # define GLOBAL_PWRMGT_EN (1 << 0) # define STATIC_PM_EN (1 << 1) diff --git a/drivers/gpu/drm/radeon/sislands_smc.h b/drivers/gpu/drm/radeon/sislands_smc.h index 623a0b1e2d9d..3c779838d9ab 100644 --- a/drivers/gpu/drm/radeon/sislands_smc.h +++ b/drivers/gpu/drm/radeon/sislands_smc.h @@ -245,6 +245,31 @@ typedef struct SISLANDS_SMC_STATETABLE SISLANDS_SMC_STATETABLE; #define SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svd 0x11c #define SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svc 0x120 +struct PP_SIslands_FanTable +{ + uint8_t fdo_mode; + uint8_t padding; + int16_t temp_min; + int16_t temp_med; + int16_t temp_max; + int16_t slope1; + int16_t slope2; + int16_t fdo_min; + int16_t hys_up; + int16_t hys_down; + int16_t hys_slope; + int16_t temp_resp_lim; + int16_t temp_curr; + int16_t slope_curr; + int16_t pwm_curr; + uint32_t refresh_period; + int16_t fdo_max; + uint8_t temp_src; + int8_t padding2; +}; + +typedef struct PP_SIslands_FanTable PP_SIslands_FanTable; + #define SMC_SISLANDS_LKGE_LUT_NUM_OF_TEMP_ENTRIES 16 #define SMC_SISLANDS_LKGE_LUT_NUM_OF_VOLT_ENTRIES 32