From f26b88c041afb309a3933d6a978e1f41ecde83e6 Mon Sep 17 00:00:00 2001 From: Jacob Harvey Date: Fri, 28 Oct 2016 09:27:41 -0500 Subject: [PATCH] Power Thermal init Change-Id: I0ca23438cdf04f0b43511eb6266948fc676ae41d Original-Change-Id: I4d4e5ada727a4e3a01e687c8e4217deb4c8b1095 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/31972 Tested-by: Jenkins Server Tested-by: Hostboot CI Reviewed-by: Louis Stermole Reviewed-by: Matt K. Light Reviewed-by: Christian R. Geddes Reviewed-by: Michael D. Pardeik Reviewed-by: Brian R. Silver Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/82428 Reviewed-by: Daniel M Crowell Tested-by: Daniel M Crowell --- .../p9/procedures/hwp/memory/lib/mc/mc.C | 211 +++++++++++++++--- 1 file changed, 180 insertions(+), 31 deletions(-) diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/mc/mc.C b/src/import/chips/p9/procedures/hwp/memory/lib/mc/mc.C index 77f2cd4817a..ab3954f935d 100644 --- a/src/import/chips/p9/procedures/hwp/memory/lib/mc/mc.C +++ b/src/import/chips/p9/procedures/hwp/memory/lib/mc/mc.C @@ -58,62 +58,211 @@ fapi2::ReturnCode dump_regs( const fapi2::Target& i_target ) namespace mc { +enum throttle_enums +{ + NM_RAS_WEIGHT = 0b000, + NM_CAS_WEIGHT = 0b001, + + CHANGE_AFTER_SYNC = 0b1, + + MAXALL_MINALL = 0b000, + //wait 16 refresh intervals of idle before powering down all ranks + MIN_DOMAIN_REDUCTION_TIME = 0x10, + //wait 64 refresh intervals of idle before going into STR on all ranks + ENTER_STR_TIME = 0x40 +}; + /// -/// @brief safemode throttle values defined from MRW attributes -/// @param[in] i_target the MCA target -/// @return fapi2::FAPI2_RC_SUCCESS if ok -/// @note sets safemode values for emergency mode and regular throttling +/// @brief set the PWR CNTRL register +/// @param[in] i_target the mca target +/// @return fapi2::fapi2_rc_success if ok +/// @note sets MCA_MCA_MBARPC0Q /// -fapi2::ReturnCode thermal_throttle_scominit (const fapi2::Target& i_target) +fapi2::ReturnCode set_pwr_cntrl_reg(const fapi2::Target& i_target) { + uint8_t l_pwr_cntrl = 0; + fapi2::buffer l_data; + + FAPI_TRY(mrw_power_control_requested(l_pwr_cntrl)); + FAPI_TRY(mss::getScom(i_target, MCA_MBARPC0Q, l_data)); + + l_data.insertFromRight(MAXALL_MINALL); + + //Write data if PWR_CNTRL_REQUESTED includes power down + l_data.writeBit + ((l_pwr_cntrl == fapi2::ENUM_ATTR_MSS_MRW_POWER_CONTROL_REQUESTED_PD_AND_STR) || + (l_pwr_cntrl == fapi2::ENUM_ATTR_MSS_MRW_POWER_CONTROL_REQUESTED_POWER_DOWN)); + + //Set the MIN_DOMAIN_REDUCTION time + l_data.insertFromRight + (MIN_DOMAIN_REDUCTION_TIME); + + FAPI_TRY(mss::putScom(i_target, MCA_MBARPC0Q, l_data) ); + + return fapi2::FAPI2_RC_SUCCESS; +fapi_try_exit: + FAPI_ERR("Error setting power control register MBARPC0Q for target %s", mss::c_str(i_target)); + return fapi2::current_err; +} + +/// +/// @brief set the STR register +/// @param[in] i_target the mca target +/// @return fapi2::fapi2_rc_success if ok +/// @note sets MCA_MBASTR0Q +/// +fapi2::ReturnCode set_str_reg(const fapi2::Target& i_target) +{ + uint8_t l_str_enable = 0; + fapi2::buffer l_data; + + FAPI_TRY(mrw_power_control_requested(l_str_enable)); + FAPI_TRY(mss::getScom(i_target, MCA_MBASTR0Q, l_data)); + + //Write bit if STR should be enabled + l_data.writeBit + ((l_str_enable == fapi2::ENUM_ATTR_MSS_MRW_POWER_CONTROL_REQUESTED_STR) || + (l_str_enable == fapi2::ENUM_ATTR_MSS_MRW_POWER_CONTROL_REQUESTED_PD_AND_STR)); + + l_data.insertFromRight(ENTER_STR_TIME); + + FAPI_TRY(mss::putScom(i_target, MCA_MBASTR0Q, l_data) ); + + return fapi2::FAPI2_RC_SUCCESS; +fapi_try_exit: + FAPI_ERR("Error setting the STR register MBASTR0Q for target %s", mss::c_str(i_target)); + return fapi2::current_err; +} + +/// +/// @brief set the general N/M throttle register +/// @param[in] i_target the mca target +/// @return fapi2::fapi2_rc_success if ok +/// @note sets MCA_MBA_FARB3Q +/// +fapi2::ReturnCode set_nm_support (const fapi2::Target& i_target) +{ + uint16_t l_run_slot = 0; + uint16_t l_run_port = 0; uint32_t l_throttle_denominator = 0; - FAPI_TRY( mss::mem_m_dram_clocks( i_target, l_throttle_denominator) ); - { - fapi2::buffer l_data; - FAPI_TRY(mss::getScom(i_target, MCA_MBA_FARB3Q, l_data)); + fapi2::buffer l_data; - uint32_t l_throttle_per_port = 0; - FAPI_TRY( mss::mrw_safemode_mem_throttled_n_commands_per_port( l_throttle_per_port) ); + //runtime should be calculated in eff_config_thermal, which is called before scominit in ipl + FAPI_TRY(runtime_mem_throttled_n_commands_per_port(i_target, l_run_port)); + FAPI_TRY(runtime_mem_throttled_n_commands_per_slot(i_target, l_run_slot)); + FAPI_TRY(mss::mrw_mem_m_dram_clocks(l_throttle_denominator) ); + FAPI_INF("For target %s throttled n commands per port are %d, per slot are %d, and dram m clocks are %d", + mss::c_str(i_target), + l_run_port, + l_run_slot, + l_throttle_denominator); + FAPI_TRY(mss::getScom(i_target, MCA_MBA_FARB3Q, l_data)); - l_data.insertFromRight(l_throttle_per_port); - l_data.insertFromRight(l_throttle_per_port); - l_data.insertFromRight(l_throttle_denominator); + l_data.insertFromRight(l_run_slot); + l_data.insertFromRight(l_run_port); + l_data.insertFromRight(l_throttle_denominator); + l_data.insertFromRight(NM_RAS_WEIGHT); + l_data.insertFromRight(NM_CAS_WEIGHT); + l_data.writeBit(CHANGE_AFTER_SYNC); - l_data.clearBit(); + FAPI_TRY(mss::putScom(i_target, MCA_MBA_FARB3Q, l_data) ); - FAPI_TRY( mss::putScom(i_target, MCA_MBA_FARB3Q, l_data) ); - } + return fapi2::FAPI2_RC_SUCCESS; +fapi_try_exit: + FAPI_ERR("Error setting nm throttles for target %s", mss::c_str(i_target)); + return fapi2::current_err; +} - { - fapi2::buffer l_data; - uint32_t l_throttle_per_slot = 0; +/// +/// @brief set the safemode throttle register +/// @param[in] i_target the mca target +/// @return fapi2::fapi2_rc_success if ok +/// @note sets MCA_MBA_FARB4Q +/// +fapi2::ReturnCode set_safemode_throttles(const fapi2::Target& i_target) +{ + fapi2::buffer l_data; + uint16_t l_throttle_per_slot = 0; + uint32_t l_throttle_denominator = 0; - FAPI_TRY( mss::mrw_safemode_mem_throttled_n_commands_per_port(l_throttle_per_slot) ); - FAPI_TRY( mss::getScom(i_target, MCA_MBA_FARB4Q, l_data) ); + FAPI_TRY(mss::mrw_mem_m_dram_clocks(l_throttle_denominator) ); + FAPI_TRY(mss::mrw_safemode_mem_throttled_n_commands_per_port(l_throttle_per_slot) ); + FAPI_TRY(mss::getScom(i_target, MCA_MBA_FARB4Q, l_data) ); - l_data.insertFromRight(l_throttle_denominator); - l_data.insertFromRight(l_throttle_per_slot); - FAPI_TRY( mss::putScom(i_target, MCA_MBA_FARB4Q, l_data) ); - } + l_data.insertFromRight(l_throttle_denominator); + l_data.insertFromRight(l_throttle_per_slot); + FAPI_TRY(mss::putScom(i_target, MCA_MBA_FARB4Q, l_data) ); + return fapi2::FAPI2_RC_SUCCESS; fapi_try_exit: + FAPI_ERR("Error setting safemode throttles for target %s", mss::c_str(i_target)); return fapi2::current_err; } /// -/// @brief Disable emergency mode throttle for thermal_init -/// @param[in] i_target the MCS target +/// @brief set the runtime throttle register to safemode values +/// @param[in] i_target the mca target +/// @return fapi2::fapi2_rc_success if ok +/// @note sets MCA_MBA_FARB3Q +/// @Will be overwritten by OCC/cronus later in IPL +/// @called in thermal_init +/// +fapi2::ReturnCode set_runtime_throttles_to_safe(const fapi2::Target& i_target) +{ + fapi2::buffer l_data; + uint16_t l_throttle_per_port = 0; + uint32_t l_throttle_denominator = 0; + + FAPI_TRY(mss::mrw_mem_m_dram_clocks(l_throttle_denominator) ); + FAPI_TRY(mss::mrw_safemode_mem_throttled_n_commands_per_port(l_throttle_per_port) ); + FAPI_TRY(mss::getScom(i_target, MCA_MBA_FARB3Q, l_data) ); + + //Same value for both throttles + l_data.insertFromRight(l_throttle_per_port); + l_data.insertFromRight(l_throttle_per_port); + l_data.insertFromRight(l_throttle_denominator); + + FAPI_TRY(mss::putScom(i_target, MCA_MBA_FARB3Q, l_data) ); + return fapi2::FAPI2_RC_SUCCESS; + +fapi_try_exit: + FAPI_ERR("Error setting safemode throttles for target %s", mss::c_str(i_target)); + return fapi2::current_err; +} + +/// +/// @brief safemode throttle values defined from MRW attributes +/// @param[in] i_target the MCA target /// @return fapi2::FAPI2_RC_SUCCESS if ok -/// @note Clears MCMODE0_ENABLE_EMER_THROTTLE bit in MCSMODE0 +/// @note sets safemode values for emergency mode and regular throttling +/// +fapi2::ReturnCode thermal_throttle_scominit (const fapi2::Target& i_target) +{ + FAPI_TRY(set_pwr_cntrl_reg(i_target)); + FAPI_TRY(set_str_reg(i_target)); + FAPI_TRY(set_nm_support(i_target)); + FAPI_TRY(set_safemode_throttles(i_target)); + + return fapi2::FAPI2_RC_SUCCESS; +fapi_try_exit: + FAPI_ERR("Error setting scominits for power_thermal values"); + return fapi2::current_err; +} + +/// +/// @brief disable emergency mode throttle for thermal_init +/// @param[in] i_target the mcs target +/// @return fapi2::fapi2_rc_success if ok +/// @note clears mcmode0_enable_emer_throttle bit in mcsmode0 /// fapi2::ReturnCode disable_emergency_throttle (const fapi2::Target& i_target) { fapi2::buffer l_data; - FAPI_TRY( mss::getScom(i_target, MCS_MCMODE0, l_data)); + FAPI_TRY(mss::getScom(i_target, MCS_MCMODE0, l_data)); l_data.clearBit(); - FAPI_TRY( mss::putScom(i_target, MCS_MCMODE0, l_data)); + FAPI_TRY(mss::putScom(i_target, MCS_MCMODE0, l_data)); fapi_try_exit: return fapi2::current_err;