diff options
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H b/src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H index 40924bc20..10651793d 100644 --- a/src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H +++ b/src/import/chips/p9/procedures/hwp/memory/lib/phy/dp16.H @@ -154,6 +154,9 @@ class dp16Traits<fapi2::TARGET_TYPE_MCA> static constexpr uint64_t RD_VREF_DVDD = 12; static constexpr uint64_t RD_VREF_DAC_STEP = 6500; + // Number of DRAM per register + static constexpr uint64_t NUM_DRAM_PER_REG = 2; + // Vectors of DP16 registers. The pair represents the two DLL in per DP16 static const std::vector< uint64_t > DLL_CNFG_REG; static const std::vector< uint64_t > RD_VREF_CAL_ENABLE_REG; @@ -2404,6 +2407,106 @@ uint64_t compute_composite_value(const uint64_t i_range, const uint64_t i_value) fapi2::ReturnCode offset_values( const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, uint8_t& io_train_range, uint8_t& io_train_value ); + +/// +/// @brief Checks that the rank pair and DRAM are in bounds +/// @param[in] i_target - the MCA target on which to operate +/// @param[in] i_rp - the rank pair on which to operate +/// @param[in] i_dram - the DRAM that needs to have the workaround applied to it +/// @param[in] i_function - the calling function to callout in FFDC +/// +fapi2::ReturnCode check_rp_and_dram( const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_rp, + const uint64_t i_dram, + const ffdc_function_codes i_function ); + +/// +/// @brief Determine the dp and reg number to the give DRAM +/// @param[in] i_target - the fapi2 target type MCA +/// @param[in] i_dram - the DRAM +/// @param[out] o_dp - the dp number for the given DRAM +/// @param[out] o_reg_num - the register number for the given DRAM +/// @return fapi2::ReturnCode FAPI2_RC_SUCCESS if ok +/// +fapi2::ReturnCode dram_to_dp_reg(const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_dram, + uint64_t& o_dp, + uint64_t& o_reg_num); + +/// +/// @brief Gets the write vref register +/// @param[in] i_target - the fapi2 target type MCA +/// @param[in] i_rp - rank pair, to make sure the dram and rp are within bounds +/// @param[in] i_dram - the DRAM +/// @param[out] o_reg - the dp16 wr_vref register for the rank pair and dram +/// @return fapi2::ReturnCode FAPI2_RC_SUCCESS if ok +/// +fapi2::ReturnCode get_wr_vref_rp_reg(const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_rp, + const uint64_t i_dram, + uint64_t& o_reg); + +/// +/// @brief Get the nominal WR VREF value and range of a dram +/// @param[in] i_target - the fapi2 target type MCA +/// @param[in] i_rp - rank pair to check and modify +/// @param[in] i_dram - the DRAM +/// @param[out] o_data - scom data containing wr vref value and range +/// @return fapi2::ReturnCode FAPI2_RC_SUCCESS if ok +/// +inline fapi2::ReturnCode read_wr_vref_register( const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_rp, + const uint64_t i_dram, + fapi2::buffer<uint64_t>& o_data ) +{ + // TK: Create similar function for write + uint64_t l_reg = 0; + FAPI_TRY( get_wr_vref_rp_reg(i_target, i_rp, i_dram, l_reg)); + + // Get the vref value and range from scom + FAPI_TRY(mss::getScom(i_target, l_reg, o_data)); + +fapi_try_exit: + return fapi2::current_err; +} + +/// +/// @brief Extract the write vref range from scom data +/// @tparam T fapi2 Target Type - defaults to TARGET_TYPE_MCA +/// @tparam TT traits type defaults to dp16Traits<T> +/// @param[in] i_data - scom data containing the wr_vref data +/// @param[in] i_dram - the DRAM +/// @param[out] o_range - wr_vref range extracted from scom data +/// +template< fapi2::TargetType T = fapi2::TARGET_TYPE_MCA, typename TT = dp16Traits<T> > +inline void get_wr_vref_range( const fapi2::buffer<uint64_t> i_data, + const uint64_t i_dram, + bool& o_range ) +{ + const auto l_dram_pos = i_dram % TT::NUM_DRAM_PER_REG; + const auto l_range_pos = (l_dram_pos == 0) ? TT::WR_VREF_VALUE_RANGE_DRAM_EVEN : TT::WR_VREF_VALUE_RANGE_DRAM_ODD; + + o_range = i_data.getBit(l_range_pos); +} + +/// +/// @brief Extract the write vref value from scom data +/// @tparam T fapi2 Target Type - defaults to TARGET_TYPE_MCA +/// @tparam TT traits type defaults to dp16Traits<T> +/// @param[in] i_data - scom data containing the wr_vref data +/// @param[in] i_dram - the DRAM +/// @param[out] o_value - wr_vref value extracted from scom data +/// +template< fapi2::TargetType T = fapi2::TARGET_TYPE_MCA, typename TT = dp16Traits<T> > +inline void get_wr_vref_value( const fapi2::buffer<uint64_t> i_data, + const uint64_t i_dram, + uint64_t& o_value ) +{ + const auto l_dram_pos = i_dram % TT::NUM_DRAM_PER_REG; + const auto l_value_pos = (l_dram_pos == 0) ? TT::WR_VREF_VALUE_VALUE_DRAM_EVEN : TT::WR_VREF_VALUE_VALUE_DRAM_ODD; + i_data.extractToRight(o_value, l_value_pos, TT::WR_VREF_VALUE_VALUE_DRAM_EVEN_LEN); +} + } // close namespace wr_vref } // close namespace dp16 } // close namespace mss |
