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linux/drivers/macintosh/therm_pm72.h
Josh Boyer de0b632ba0 powerpc: Fix G5 thermal shutdown 
This changes the thresholds for the liquid cooled G5 thermal
shutdown mechanism to prevent an errant shutdown with some
models.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-03-09 11:55:27 +11:00

326 lines
9.3 KiB
C
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#ifndef __THERM_PMAC_7_2_H__
#define __THERM_PMAC_7_2_H__
typedef unsigned short fu16;
typedef int fs32;
typedef short fs16;
struct mpu_data
{
u8 signature; /* 0x00 - EEPROM sig. */
u8 bytes_used; /* 0x01 - Bytes used in eeprom (160 ?) */
u8 size; /* 0x02 - EEPROM size (256 ?) */
u8 version; /* 0x03 - EEPROM version */
u32 data_revision; /* 0x04 - Dataset revision */
u8 processor_bin_code[3]; /* 0x08 - Processor BIN code */
u8 bin_code_expansion; /* 0x0b - ??? (padding ?) */
u8 processor_num; /* 0x0c - Number of CPUs on this MPU */
u8 input_mul_bus_div; /* 0x0d - Clock input multiplier/bus divider */
u8 reserved1[2]; /* 0x0e - */
u32 input_clk_freq_high; /* 0x10 - Input clock frequency high */
u8 cpu_nb_target_cycles; /* 0x14 - ??? */
u8 cpu_statlat; /* 0x15 - ??? */
u8 cpu_snooplat; /* 0x16 - ??? */
u8 cpu_snoopacc; /* 0x17 - ??? */
u8 nb_paamwin; /* 0x18 - ??? */
u8 nb_statlat; /* 0x19 - ??? */
u8 nb_snooplat; /* 0x1a - ??? */
u8 nb_snoopwin; /* 0x1b - ??? */
u8 api_bus_mode; /* 0x1c - ??? */
u8 reserved2[3]; /* 0x1d - */
u32 input_clk_freq_low; /* 0x20 - Input clock frequency low */
u8 processor_card_slot; /* 0x24 - Processor card slot number */
u8 reserved3[2]; /* 0x25 - */
u8 padjmax; /* 0x27 - Max power adjustment (Not in OF!) */
u8 ttarget; /* 0x28 - Target temperature */
u8 tmax; /* 0x29 - Max temperature */
u8 pmaxh; /* 0x2a - Max power */
u8 tguardband; /* 0x2b - Guardband temp ??? Hist. len in OSX */
fs32 pid_gp; /* 0x2c - PID proportional gain */
fs32 pid_gr; /* 0x30 - PID reset gain */
fs32 pid_gd; /* 0x34 - PID derivative gain */
fu16 voph; /* 0x38 - Vop High */
fu16 vopl; /* 0x3a - Vop Low */
fs16 nactual_die; /* 0x3c - nActual Die */
fs16 nactual_heatsink; /* 0x3e - nActual Heatsink */
fs16 nactual_system; /* 0x40 - nActual System */
u16 calibration_flags; /* 0x42 - Calibration flags */
fu16 mdiode; /* 0x44 - Diode M value (scaling factor) */
fs16 bdiode; /* 0x46 - Diode B value (offset) */
fs32 theta_heat_sink; /* 0x48 - Theta heat sink */
u16 rminn_intake_fan; /* 0x4c - Intake fan min RPM */
u16 rmaxn_intake_fan; /* 0x4e - Intake fan max RPM */
u16 rminn_exhaust_fan; /* 0x50 - Exhaust fan min RPM */
u16 rmaxn_exhaust_fan; /* 0x52 - Exhaust fan max RPM */
u8 processor_part_num[8]; /* 0x54 - Processor part number XX pumps min/max */
u32 processor_lot_num; /* 0x5c - Processor lot number */
u8 orig_card_sernum[0x10]; /* 0x60 - Card original serial number */
u8 curr_card_sernum[0x10]; /* 0x70 - Card current serial number */
u8 mlb_sernum[0x18]; /* 0x80 - MLB serial number */
u32 checksum1; /* 0x98 - */
u32 checksum2; /* 0x9c - */
}; /* Total size = 0xa0 */
/* Display a 16.16 fixed point value */
#define FIX32TOPRINT(f) ((f) >> 16),((((f) & 0xffff) * 1000) >> 16)
/*
* Maximum number of seconds to be in critical state (after a
* normal shutdown attempt). If the machine isn't down after
* this counter elapses, we force an immediate machine power
* off.
*/
#define MAX_CRITICAL_STATE 30
static char * critical_overtemp_path = "/sbin/critical_overtemp";
/*
* This option is "weird" :) Basically, if you define this to 1
* the control loop for the RPMs fans (not PWMs) will apply the
* correction factor obtained from the PID to the _actual_ RPM
* speed read from the FCU.
* If you define the below constant to 0, then it will be
* applied to the setpoint RPM speed, that is basically the
* speed we proviously "asked" for.
*
* I'm not sure which of these Apple's algorithm is supposed
* to use
*/
#define RPM_PID_USE_ACTUAL_SPEED 0
/*
* i2c IDs. Currently, we hard code those and assume that
* the FCU is on U3 bus 1 while all sensors are on U3 bus
* 0. This appear to be safe enough for this first version
* of the driver, though I would accept any clean patch
* doing a better use of the device-tree without turning the
* while i2c registration mechanism into a racy mess
*
* Note: Xserve changed this. We have some bits on the K2 bus,
* which I arbitrarily set to 0x200. Ultimately, we really want
* too lookup these in the device-tree though
*/
#define FAN_CTRLER_ID 0x15e
#define SUPPLY_MONITOR_ID 0x58
#define SUPPLY_MONITORB_ID 0x5a
#define DRIVES_DALLAS_ID 0x94
#define BACKSIDE_MAX_ID 0x98
#define XSERVE_DIMMS_LM87 0x25a
#define XSERVE_SLOTS_LM75 0x290
/*
* Some MAX6690, DS1775, LM87 register definitions
*/
#define MAX6690_INT_TEMP 0
#define MAX6690_EXT_TEMP 1
#define DS1775_TEMP 0
#define LM87_INT_TEMP 0x27
/*
* Scaling factors for the AD7417 ADC converters (except
* for the CPU diode which is obtained from the EEPROM).
* Those values are obtained from the property list of
* the darwin driver
*/
#define ADC_12V_CURRENT_SCALE 0x0320 /* _AD2 */
#define ADC_CPU_VOLTAGE_SCALE 0x00a0 /* _AD3 */
#define ADC_CPU_CURRENT_SCALE 0x1f40 /* _AD4 */
/*
* PID factors for the U3/Backside fan control loop. We have 2 sets
* of values here, one set for U3 and one set for U3H
*/
#define BACKSIDE_FAN_PWM_DEFAULT_ID 1
#define BACKSIDE_FAN_PWM_INDEX 0
#define BACKSIDE_PID_U3_G_d 0x02800000
#define BACKSIDE_PID_U3H_G_d 0x01400000
#define BACKSIDE_PID_RACK_G_d 0x00500000
#define BACKSIDE_PID_G_p 0x00500000
#define BACKSIDE_PID_RACK_G_p 0x0004cccc
#define BACKSIDE_PID_G_r 0x00000000
#define BACKSIDE_PID_U3_INPUT_TARGET 0x00410000
#define BACKSIDE_PID_U3H_INPUT_TARGET 0x004b0000
#define BACKSIDE_PID_RACK_INPUT_TARGET 0x00460000
#define BACKSIDE_PID_INTERVAL 5
#define BACKSIDE_PID_RACK_INTERVAL 1
#define BACKSIDE_PID_OUTPUT_MAX 100
#define BACKSIDE_PID_U3_OUTPUT_MIN 20
#define BACKSIDE_PID_U3H_OUTPUT_MIN 20
#define BACKSIDE_PID_HISTORY_SIZE 2
struct basckside_pid_params
{
s32 G_d;
s32 G_p;
s32 G_r;
s32 input_target;
s32 output_min;
s32 output_max;
s32 interval;
int additive;
};
struct backside_pid_state
{
int ticks;
struct i2c_client * monitor;
s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
int cur_sample;
s32 last_temp;
int pwm;
int first;
};
/*
* PID factors for the Drive Bay fan control loop
*/
#define DRIVES_FAN_RPM_DEFAULT_ID 2
#define DRIVES_FAN_RPM_INDEX 1
#define DRIVES_PID_G_d 0x01e00000
#define DRIVES_PID_G_p 0x00500000
#define DRIVES_PID_G_r 0x00000000
#define DRIVES_PID_INPUT_TARGET 0x00280000
#define DRIVES_PID_INTERVAL 5
#define DRIVES_PID_OUTPUT_MAX 4000
#define DRIVES_PID_OUTPUT_MIN 300
#define DRIVES_PID_HISTORY_SIZE 2
struct drives_pid_state
{
int ticks;
struct i2c_client * monitor;
s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
int cur_sample;
s32 last_temp;
int rpm;
int first;
};
#define SLOTS_FAN_PWM_DEFAULT_ID 2
#define SLOTS_FAN_PWM_INDEX 2
#define SLOTS_FAN_DEFAULT_PWM 40 /* Do better here ! */
/*
* PID factors for the Xserve DIMM control loop
*/
#define DIMM_PID_G_d 0
#define DIMM_PID_G_p 0
#define DIMM_PID_G_r 0x06553600
#define DIMM_PID_INPUT_TARGET 3276800
#define DIMM_PID_INTERVAL 1
#define DIMM_PID_OUTPUT_MAX 14000
#define DIMM_PID_OUTPUT_MIN 4000
#define DIMM_PID_HISTORY_SIZE 20
struct dimm_pid_state
{
int ticks;
struct i2c_client * monitor;
s32 sample_history[DIMM_PID_HISTORY_SIZE];
s32 error_history[DIMM_PID_HISTORY_SIZE];
int cur_sample;
s32 last_temp;
int first;
int output;
};
/*
* PID factors for the Xserve Slots control loop
*/
#define SLOTS_PID_G_d 0
#define SLOTS_PID_G_p 0
#define SLOTS_PID_G_r 0x00100000
#define SLOTS_PID_INPUT_TARGET 3200000
#define SLOTS_PID_INTERVAL 1
#define SLOTS_PID_OUTPUT_MAX 100
#define SLOTS_PID_OUTPUT_MIN 20
#define SLOTS_PID_HISTORY_SIZE 20
struct slots_pid_state
{
int ticks;
struct i2c_client * monitor;
s32 sample_history[SLOTS_PID_HISTORY_SIZE];
s32 error_history[SLOTS_PID_HISTORY_SIZE];
int cur_sample;
s32 last_temp;
int first;
int pwm;
};
/* Desktops */
#define CPUA_INTAKE_FAN_RPM_DEFAULT_ID 3
#define CPUA_EXHAUST_FAN_RPM_DEFAULT_ID 4
#define CPUB_INTAKE_FAN_RPM_DEFAULT_ID 5
#define CPUB_EXHAUST_FAN_RPM_DEFAULT_ID 6
#define CPUA_INTAKE_FAN_RPM_INDEX 3
#define CPUA_EXHAUST_FAN_RPM_INDEX 4
#define CPUB_INTAKE_FAN_RPM_INDEX 5
#define CPUB_EXHAUST_FAN_RPM_INDEX 6
#define CPU_INTAKE_SCALE 0x0000f852
#define CPU_TEMP_HISTORY_SIZE 2
#define CPU_POWER_HISTORY_SIZE 10
#define CPU_PID_INTERVAL 1
#define CPU_MAX_OVERTEMP 90
#define CPUA_PUMP_RPM_INDEX 7
#define CPUB_PUMP_RPM_INDEX 8
#define CPU_PUMP_OUTPUT_MAX 3200
#define CPU_PUMP_OUTPUT_MIN 1250
/* Xserve */
#define CPU_A1_FAN_RPM_INDEX 9
#define CPU_A2_FAN_RPM_INDEX 10
#define CPU_A3_FAN_RPM_INDEX 11
#define CPU_B1_FAN_RPM_INDEX 12
#define CPU_B2_FAN_RPM_INDEX 13
#define CPU_B3_FAN_RPM_INDEX 14
struct cpu_pid_state
{
int index;
struct i2c_client * monitor;
struct mpu_data mpu;
int overtemp;
s32 temp_history[CPU_TEMP_HISTORY_SIZE];
int cur_temp;
s32 power_history[CPU_POWER_HISTORY_SIZE];
s32 error_history[CPU_POWER_HISTORY_SIZE];
int cur_power;
int count_power;
int rpm;
int intake_rpm;
s32 voltage;
s32 current_a;
s32 last_temp;
s32 last_power;
int first;
u8 adc_config;
s32 pump_min;
s32 pump_max;
};
/* Tickle FCU every 10 seconds */
#define FCU_TICKLE_TICKS 10
/*
* Driver state
*/
enum {
state_detached,
state_attaching,
state_attached,
state_detaching,
};
#endif /* __THERM_PMAC_7_2_H__ */
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