diff options
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C b/src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C index cbf1fe988..8ab0ace19 100644 --- a/src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C +++ b/src/import/chips/p9/procedures/hwp/memory/p9_mss_utils_to_throttle.C @@ -48,6 +48,7 @@ #include <lib/utils/conversions.H> #include <lib/power_thermal/throttle.H> #include <lib/mss_attribute_accessors.H> +#include <lib/utils/count_dimm.H> using fapi2::TARGET_TYPE_MCS; using fapi2::TARGET_TYPE_MCA; @@ -57,8 +58,8 @@ extern "C" { /// -/// @brief Sets number commands allowed within a given data bus utilization. -/// @param[in] i_targets vector of MCS on the same VDDR domain +/// @brief Sets number commands allowed within a given port databus utilization. +/// @param[in] i_targets vector of MCS to set throttle attributes on /// @return FAPI2_RC_SUCCESS iff ok /// @note throttle_per_slot will be equalized so all throttles coming out will be equal to worst case /// @@ -66,22 +67,33 @@ extern "C" { for( const auto& l_mcs : i_targets ) { - uint32_t l_databus_util [mss::PORTS_PER_MCS]; + uint32_t l_input_databus_util [mss::PORTS_PER_MCS] = {}; + uint32_t l_max_databus_util = {}; uint32_t l_dram_clocks = 0; - uint16_t l_throttled_cmds_port[mss::PORTS_PER_MCS]; - uint16_t l_throttled_cmds_slot[mss::PORTS_PER_MCS]; - uint32_t l_max_power[mss::PORTS_PER_MCS]; + uint16_t l_n_port[mss::PORTS_PER_MCS] = {}; + uint16_t l_n_slot[mss::PORTS_PER_MCS] = {}; + uint32_t l_max_power[mss::PORTS_PER_MCS] = {}; FAPI_TRY( mss::mrw_mem_m_dram_clocks(l_dram_clocks) ); + //Util attribute set by OCC - FAPI_TRY( mss::databus_util(l_mcs, l_databus_util) ); + FAPI_TRY( mss::databus_util(l_mcs, l_input_databus_util) ); + FAPI_TRY( mss::mrw_max_dram_databus_util(l_max_databus_util)); + + FAPI_INF("Input databus utilization is %d and %d", l_input_databus_util[0], l_input_databus_util[1]); for( const auto& l_mca : mss::find_targets<TARGET_TYPE_MCA>(l_mcs) ) { const auto l_port_num = mss::index( l_mca ); + + //make sure 0 < input_utilization <= max_utilization + uint32_t l_databus_util = ( l_input_databus_util[l_port_num] != 0) ? + std::min(l_input_databus_util[l_port_num], l_max_databus_util) : mss::power_thermal::MIN_UTIL; + //Make a throttle object in order to calculate the port power fapi2::ReturnCode l_rc; + mss::power_thermal::throttle l_throttle (l_mca, l_rc); FAPI_TRY(l_rc, "Error calculating mss::power_thermal::throttle constructor in p9_mss_utils_to_throttles"); @@ -89,17 +101,16 @@ extern "C" l_dram_clocks, l_databus_util); - //Calculate programmable N address operations within M dram clock window - l_throttled_cmds_port[l_port_num] = mss::power_thermal::throttled_cmds(l_databus_util[l_port_num], - l_dram_clocks ); - l_throttled_cmds_slot[l_port_num] = l_throttled_cmds_port[l_port_num]; - //Calculate the port power needed to reach the calculated N value - l_max_power[l_port_num] = l_throttle.calc_power_from_n(l_throttled_cmds_slot[l_port_num]); + l_throttle.calc_slots_and_power(l_databus_util); FAPI_INF( "Calculated N commands per port [%d] = %d commands, maxpower is %d", l_port_num, - l_throttled_cmds_port[l_port_num], - l_max_power[l_port_num]); + l_throttle.iv_n_port, + l_throttle.iv_calc_port_maxpower); + + l_n_slot[l_port_num] = l_throttle.iv_n_slot; + l_n_port[l_port_num] = l_throttle.iv_n_port; + l_max_power[l_port_num] = l_throttle.iv_calc_port_maxpower; }// end for FAPI_TRY( FAPI_ATTR_SET(fapi2::ATTR_MSS_PORT_MAXPOWER, @@ -107,12 +118,15 @@ extern "C" l_max_power) ); FAPI_TRY( FAPI_ATTR_SET(fapi2::ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_SLOT, l_mcs, - l_throttled_cmds_slot) ); + l_n_slot) ); FAPI_TRY( FAPI_ATTR_SET(fapi2::ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_PORT, l_mcs, - l_throttled_cmds_port) ); + l_n_port) ); } + //equalize throttles to prevent variable performance + FAPI_TRY( mss::power_thermal::equalize_throttles (i_targets)); + fapi_try_exit: return fapi2::current_err; } |
