diff options
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C b/src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C index e5a3e8d66..fa4ba7166 100644 --- a/src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C +++ b/src/import/chips/p9/procedures/hwp/memory/lib/phy/mss_lrdimm_training.C @@ -35,7 +35,14 @@ // *HWP Level: 2 // *HWP Consumed by: FSP:HB +#include <p9_mc_scom_addresses.H> +#include <p9_mc_scom_addresses_fld.H> + #include <lib/phy/mss_lrdimm_training.H> +#include <lib/phy/mss_training.H> +#include <lib/phy/seq.H> +#include <lib/dimm/rank.H> +#include <lib/dimm/ddr4/mrs_load_ddr4.H> namespace mss { @@ -47,6 +54,126 @@ namespace lrdimm { /// +/// @brief Issues initial pattern write to all ranks in the rank pair +/// @param[in] i_target the MCA target on which to operate +/// @parma[in] i_rp the rank pair on which to operate +/// @parma[in] i_pattern the pattern to program into the MPR +/// @return fapi2::ReturnCode fapi2::FAPI2_RC_SUCCESS iff ok +/// +fapi2::ReturnCode mpr_pattern_wr_all_ranks(const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_rp, + const uint32_t i_pattern) +{ + std::vector<uint64_t> l_ranks; + + FAPI_TRY( mss::rank::get_ranks_in_pair( i_target, i_rp, l_ranks), + "Failed get_ranks_in_pair in mrep::run %s", + mss::c_str(i_target) ); + + // Loops over all ranks within this rank pair + for (const auto l_rank : l_ranks) + { + FAPI_TRY(mpr_pattern_wr_rank(i_target, l_rank, i_pattern)); + }; + +fapi_try_exit : + return fapi2::current_err; +} + +/// +/// @brief Issues initial pattern write a specific rank +/// @param[in] i_target the MCA target on which to operate +/// @parma[in] i_rank the rank to setup for initial pattern write +/// @parma[in] i_pattern the pattern to program into the MPR +/// @return fapi2::ReturnCode fapi2::FAPI2_RC_SUCCESS iff ok +/// +fapi2::ReturnCode mpr_pattern_wr_rank(const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target, + const uint64_t i_rank, + const uint32_t i_pattern) +{ + // Skip over invalid ranks (NO_RANK) + if(i_rank == NO_RANK) + { + FAPI_DBG("%s NO_RANK was passed in %u. Skipping", mss::c_str(i_target), i_rank) + return fapi2::FAPI2_RC_SUCCESS; + } + + mss::ccs::program<fapi2::TARGET_TYPE_MCBIST> l_program; + const auto& l_mcbist = mss::find_target<fapi2::TARGET_TYPE_MCBIST>(i_target); + constexpr uint64_t NUM_MPR_PATTERNS = 4; + + // The below code expects us to have ranks in terms of the DIMM values, so index 'em + const auto l_rank = mss::index(i_rank); + + // Gets the DIMM target + fapi2::Target<fapi2::TARGET_TYPE_DIMM> l_dimm; + FAPI_TRY(mss::rank::get_dimm_target_from_rank(i_target, i_rank, l_dimm), + "%s failed to get DIMM target for rank %u", mss::c_str(i_target), i_rank); + + // Ok, MPR write + // We need to + // 1) MRS into MPR mode + // 2) Write the patterns in according to the bank address + // 3) MRS out of MPR mode + + // 1) MRS into MPR mode + FAPI_TRY( mss::ddr4::mpr_load(l_dimm, + fapi2::ENUM_ATTR_EFF_MPR_MODE_ENABLE, + i_rank, + l_program.iv_instructions) ); + + // 2) Write the patterns in according to the bank address + { + constexpr uint64_t MPR_WR_BG = 0; + // First, swizzle the pattern + fapi2::buffer<uint32_t> l_swizzled_pattern; + FAPI_TRY(mss::seq::swizzle_mpr_pattern(i_pattern, l_swizzled_pattern), + "%s rank%u failed to swizzle pattern", mss::c_str(i_target), i_rank); + + // Now add in writes with the appropriate data involved + the good old swizzle that we do based upon the ranks + // Swizzle is required as we want the expected data for mirrored and non-mirrored ranks to be the same + // For MPR writes the expected data is carried by the addresses, so mirroring matters + + // Loop through all MPR patterns and generate writes for 'em + // The MPR number is defined by the bank address + for(uint8_t l_ba = 0; l_ba < NUM_MPR_PATTERNS; ++l_ba) + { + constexpr uint64_t ADDR_START = 54; + constexpr uint64_t PATTERN_LEN = 8; + constexpr uint64_t MPR_WR_SAFE_DELAY = 0xff; + uint64_t l_pattern = 0; + FAPI_TRY(l_swizzled_pattern.extract(l_pattern, l_ba * PATTERN_LEN, PATTERN_LEN, ADDR_START), "%s ba%u", + mss::c_str(l_dimm), l_ba); + { + auto l_wr = mss::ccs::wr_command<fapi2::TARGET_TYPE_MCBIST>( l_dimm, + l_rank, + l_ba, + MPR_WR_BG, + l_pattern); + l_wr.arr1.template insertFromRight<MCBIST_CCS_INST_ARR1_00_IDLES, MCBIST_CCS_INST_ARR1_00_IDLES_LEN>(MPR_WR_SAFE_DELAY); + FAPI_TRY(address_mirror(l_dimm, l_rank, l_wr)); + l_program.iv_instructions.push_back(l_wr); + } + } + } + + + // 3) MRS out of MPR mode + FAPI_TRY( mss::ddr4::mpr_load(l_dimm, + fapi2::ENUM_ATTR_EFF_MPR_MODE_DISABLE, + i_rank, + l_program.iv_instructions) ); + + + FAPI_TRY( ccs::execute(l_mcbist, + l_program, + i_target) ); + +fapi_try_exit: + return fapi2::current_err; +} + +/// /// @brief Sets up and runs the calibration step /// @param[in] i_target - the MCA target on which to operate /// @param[in] i_rp - the rank pair |
