diff options
Diffstat (limited to 'src/occ_405/amec/amec_controller.c')
| -rw-r--r-- | src/occ_405/amec/amec_controller.c | 236 |
1 files changed, 176 insertions, 60 deletions
diff --git a/src/occ_405/amec/amec_controller.c b/src/occ_405/amec/amec_controller.c index 1f02eda..a74ad2b 100644 --- a/src/occ_405/amec/amec_controller.c +++ b/src/occ_405/amec/amec_controller.c @@ -36,6 +36,8 @@ //************************************************************************* extern dimm_sensor_flags_t G_dimm_temp_expired_bitmap; extern uint16_t G_cent_temp_expired_bitmap; +extern uint8_t G_ocm_dts_type_expired_bitmap; + //************************************************************************* // Macros //************************************************************************* @@ -246,8 +248,8 @@ void amec_controller_vrm_vdd_thermal() // Description: This function implements the Proportional Controller for the // DIMM thermal control. Although it doesn't return any // results, it populates the thermal vote in the field -// g_amec->thermaldimm.speed_request. -// +// g_amec->thermaldimm.speed_request, g_amec->thermalmcdimm.speed_request, +// g_amec->thermalpmic.speed_request and g_amec->thermalmcext.speed_request, // Task Flags: // // End Function Specification @@ -256,82 +258,197 @@ void amec_controller_dimm_thermal() /*------------------------------------------------------------------------*/ /* Local Variables */ /*------------------------------------------------------------------------*/ + uint8_t i = 0; + uint8_t l_max_dimm_types = 0; + const uint16_t l_dimm_types[4] = {DATA_FRU_DIMM, + DATA_FRU_MEMCTRL_DRAM, + DATA_FRU_PMIC, + DATA_FRU_MEMCTRL_EXT}; uint16_t l_thermal_winner = 0; uint16_t l_residue = 0; uint16_t l_old_residue = 0; + uint16_t l_throttle_temp = 0; + uint16_t l_Pgain = 0; + uint16_t * l_speed_request = NULL; + uint16_t * l_total_res = NULL; int16_t l_error = 0; int16_t l_mem_speed = 0; int16_t l_throttle_chg = 0; int32_t l_throttle = 0; sensor_t * l_sensor = NULL; + bool l_timeout = false; /*------------------------------------------------------------------------*/ /* Code */ /*------------------------------------------------------------------------*/ - // Get TEMPDIMMTHRM sensor value - l_sensor = getSensorByGsid(TEMPDIMMTHRM); - - if(G_dimm_temp_expired_bitmap.dw[0] || - G_dimm_temp_expired_bitmap.dw[1]) - { - //we were not able to read one or more dimm temperatures. - //Assume temperature is at the setpoint plus 1 degree C. - l_thermal_winner = g_amec->thermaldimm.setpoint + 10; - } - else - { - // Use the highest temperature of all DIMMs in 0.1 degrees C - l_thermal_winner = l_sensor->sample * 10; - } - - // Check if there is an error - if (g_amec->thermaldimm.setpoint == l_thermal_winner) - return; - - // Calculate the thermal control error - l_error = g_amec->thermaldimm.setpoint - l_thermal_winner; - - // Proportional Controller for the thermal control loop based on DIMM - // temperatures - l_throttle = (int32_t) l_error * g_amec->thermaldimm.Pgain; - l_residue = (uint16_t) l_throttle; - l_throttle_chg = (int16_t) (l_throttle >> 16); - - if ((int16_t) l_throttle_chg > AMEC_MEMORY_SPEED_CHANGE_LIMIT) + // loop for the number of different fru types the "dimm" sensors can be + // to determine memory throttle based on each type + if(MEM_TYPE_OCM == G_sysConfigData.mem_type) { - l_throttle_chg = AMEC_MEMORY_SPEED_CHANGE_LIMIT; + // all 4 types are possible: + l_max_dimm_types = 4; } else { - if ((int16_t) l_throttle_chg < (-AMEC_MEMORY_SPEED_CHANGE_LIMIT)) - { - l_throttle_chg = -AMEC_MEMORY_SPEED_CHANGE_LIMIT; - } + // can only be the one DATA_FRU_DIMM type which must be listed first in l_dimm_types + l_max_dimm_types = 1; } - // Calculate the new thermal speed request for DIMMs - l_mem_speed = g_amec->thermaldimm.speed_request + - (int16_t) l_throttle_chg * AMEC_MEMORY_STEP_SIZE; - - // Proceed with residue summation to correctly follow set-point - l_old_residue = g_amec->thermaldimm.total_res; - g_amec->thermaldimm.total_res += l_residue; - if (g_amec->thermaldimm.total_res < l_old_residue) + for(i= 0; i < l_max_dimm_types; i++) { - l_mem_speed += AMEC_MEMORY_STEP_SIZE; - } - - // Enforce actuator saturation limits - if (l_mem_speed > AMEC_MEMORY_MAX_STEP) - l_mem_speed = AMEC_MEMORY_MAX_STEP; - if (l_mem_speed < AMEC_MEMORY_MIN_STEP) - l_mem_speed = AMEC_MEMORY_MIN_STEP; - - // Generate the new thermal speed request - g_amec->thermaldimm.speed_request = (uint16_t) l_mem_speed; - - // Update the Memory OT Throttle Sensor - if(g_amec->thermaldimm.speed_request < AMEC_MEMORY_MAX_STEP) + l_timeout = false; // default this type did not timeout + + // setup vars specific for type being processed + if(l_dimm_types[i] == DATA_FRU_DIMM) + { + // use control values for DATA_FRU_DIMM type + l_throttle_temp = g_amec->thermaldimm.setpoint; + l_Pgain = g_amec->thermaldimm.Pgain; + l_speed_request = &g_amec->thermaldimm.speed_request; + l_total_res = &g_amec->thermaldimm.total_res; + + // Get the highest DIMM temperature in 0.1 degrees C + l_sensor = getSensorByGsid(TEMPDIMMTHRM); + l_thermal_winner = l_sensor->sample * 10; + + // check for time out + if(G_dimm_temp_expired_bitmap.dw[0] || G_dimm_temp_expired_bitmap.dw[1]) + { + if(MEM_TYPE_OCM != G_sysConfigData.mem_type) + { + // non-OCM can only have DIMM type so timeout must be for DIMM + l_timeout = true; + } + else if(G_ocm_dts_type_expired_bitmap & OCM_DTS_TYPE_DIMM_MASK) // MEM_TYPE_OCM + { + l_timeout = true; + } + } + } // end if DATA_FRU_DIMM + else if(l_dimm_types[i] == DATA_FRU_MEMCTRL_DRAM) + { + // use control values for DATA_FRU_MEMCTRL_DRAM type + l_throttle_temp = g_amec->thermalmcdimm.setpoint; + l_Pgain = g_amec->thermalmcdimm.Pgain; + l_speed_request = &g_amec->thermalmcdimm.speed_request; + l_total_res = &g_amec->thermalmcdimm.total_res; + + // Get the highest Memctrl+DRAM temperature in 0.1 degrees C + l_sensor = getSensorByGsid(TEMPMCDIMMTHRM); + l_thermal_winner = l_sensor->sample * 10; + + // check if this type timed out + if(G_ocm_dts_type_expired_bitmap & OCM_DTS_TYPE_MEMCTRL_DRAM_MASK) + { + l_timeout = true; + } + } + else if(l_dimm_types[i] == DATA_FRU_PMIC) + { + // use control values for DATA_FRU_PMIC type + l_throttle_temp = g_amec->thermalpmic.setpoint; + l_Pgain = g_amec->thermalpmic.Pgain; + l_speed_request = &g_amec->thermalpmic.speed_request; + l_total_res = &g_amec->thermalpmic.total_res; + + // Get the highest PMIC temperature in 0.1 degrees C + l_sensor = getSensorByGsid(TEMPPMICTHRM); + l_thermal_winner = l_sensor->sample * 10; + + // check if this type timed out + if(G_ocm_dts_type_expired_bitmap & OCM_DTS_TYPE_PMIC_MASK) + { + l_timeout = true; + } + } + else if(l_dimm_types[i] == DATA_FRU_MEMCTRL_EXT) + { + // use control values for DATA_FRU_MEMCTRL_EXT type + l_throttle_temp = g_amec->thermalmcext.setpoint; + l_Pgain = g_amec->thermalmcext.Pgain; + l_speed_request = &g_amec->thermalmcext.speed_request; + l_total_res = &g_amec->thermalmcext.total_res; + + // Get the highest external mem controller temperature in 0.1 degrees C + l_sensor = getSensorByGsid(TEMPMCEXTTHRM); + l_thermal_winner = l_sensor->sample * 10; + + // check if this type timed out + if(G_ocm_dts_type_expired_bitmap & OCM_DTS_TYPE_MEMCTRL_EXT_MASK) + { + l_timeout = true; + } + } + else + { + // should never happen -- code bug + TRAC_ERR("amec_controller_dimm_thermal: Invalid DIMM sensor type[0x%02X] at idx[%d]", + l_dimm_types[i], + i); + continue; + } + + // start common code for all types to determine throttle level + // Adjust the temperature if there was a time out reading this sensor fru type + if(l_timeout) + { + //Assume temperature is at the throttle temp plus 1 degree C. + l_thermal_winner = l_throttle_temp + 10; + } + + // Check if this type is being used and the temp differs from the throttle point + if( (!l_thermal_winner) || (l_throttle_temp == l_thermal_winner) ) + continue; + + // Calculate the thermal control error + l_error = l_throttle_temp - l_thermal_winner; + + // Proportional Controller for the thermal control loop based on memory temperatures + l_throttle = (int32_t) l_error * l_Pgain; + l_residue = (uint16_t) l_throttle; + l_throttle_chg = (int16_t) (l_throttle >> 16); + + if ((int16_t) l_throttle_chg > AMEC_MEMORY_SPEED_CHANGE_LIMIT) + { + l_throttle_chg = AMEC_MEMORY_SPEED_CHANGE_LIMIT; + } + else + { + if ((int16_t) l_throttle_chg < (-AMEC_MEMORY_SPEED_CHANGE_LIMIT)) + { + l_throttle_chg = -AMEC_MEMORY_SPEED_CHANGE_LIMIT; + } + } + + // Calculate the new thermal speed request + l_mem_speed = *l_speed_request + + (int16_t) l_throttle_chg * AMEC_MEMORY_STEP_SIZE; + + // Proceed with residue summation to correctly follow set-point + l_old_residue = *l_total_res; + *l_total_res += l_residue; + if (*l_total_res < l_old_residue) + { + l_mem_speed += AMEC_MEMORY_STEP_SIZE; + } + + // Enforce actuator saturation limits + if (l_mem_speed > AMEC_MEMORY_MAX_STEP) + l_mem_speed = AMEC_MEMORY_MAX_STEP; + if (l_mem_speed < AMEC_MEMORY_MIN_STEP) + l_mem_speed = AMEC_MEMORY_MIN_STEP; + + // Save the new thermal speed request for this memory sensor type + *l_speed_request = (uint16_t) l_mem_speed; + + } // end for loop processing each memory sensor type + + // Done processing all types now determine if any of them are driving throttling + // and update the Memory OT Throttle Sensor + if( (g_amec->thermaldimm.speed_request < AMEC_MEMORY_MAX_STEP) || + (g_amec->thermalmcdimm.speed_request < AMEC_MEMORY_MAX_STEP) || + (g_amec->thermalpmic.speed_request < AMEC_MEMORY_MAX_STEP) || + (g_amec->thermalmcext.speed_request < AMEC_MEMORY_MAX_STEP) ) { // Memory speed is less than max indicate throttle due to OT sensor_update(AMECSENSOR_PTR(MEMOTTHROT), 1); @@ -340,7 +457,6 @@ void amec_controller_dimm_thermal() { sensor_update(AMECSENSOR_PTR(MEMOTTHROT), 0); } - } |
