diff options
Diffstat (limited to 'src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C')
| -rwxr-xr-x | src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C | 183 |
1 files changed, 180 insertions, 3 deletions
diff --git a/src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C b/src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C index 1db9e4476..e22376c1f 100755 --- a/src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C +++ b/src/import/chips/centaur/procedures/hwp/memory/p9c_mss_generic_shmoo.C @@ -27,7 +27,7 @@ /// @file p9c_mss_generic_shmoo.C /// @brief MSS Generic Shmoo Implementation /// -/// *HWP HWP Owner: Luke Mulkey <lwmulkey@us.ibm.com> +/// *HWP HWP Owner: Andre Marin <aamarin@us.ibm.com> /// *HWP HWP Backup: Stephen Glancy <sglancy@us.ibm.com> /// *HWP Team: Memory /// *HWP Level: 2 @@ -241,8 +241,8 @@ extern "C" FAPI_DBG("mss_generic_shmoo : run() l_attr_schmoo_test_type_u8 %d", l_attr_schmoo_test_type_u8); // Check if all bytes/bits are in a pass condition initially .Otherwise quit - //Value of l_attr_schmoo_test_type_u8 are 0x01, 0x02, 0x04, 0x08, 0x10 === - // "MCBIST","WR_EYE","RD_EYE","WRT_DQS","RD_DQS" resp. + //Value of l_attr_schmoo_test_type_u8 are 0x01, 0x02, 0x04, 0x08, 0x10 , 0x20 === + // "MCBIST","WR_EYE","RD_EYE","WRT_DQS","RD_DQS","BOX" resp. if (l_attr_schmoo_test_type_u8 == 0) { @@ -258,6 +258,19 @@ extern "C" } + //runs the box shmoo + else if (l_attr_schmoo_test_type_u8 == BOX) + { + FAPI_TRY(get_all_noms(i_target)); + + if(l_attr_schmoo_multiple_setup_call_u8 == 0) + { + FAPI_TRY(schmoo_setup_mcb(i_target)); + } + + FAPI_TRY(do_box_shmoo(i_target)); + } + else if (l_attr_schmoo_test_type_u8 == 8) { if (l_rankpgrp0[0] != 255) @@ -4588,4 +4601,168 @@ extern "C" return fapi2::current_err; } + /// + /// @brief Box shmoo error log helper + /// @param[in] i_target the MBA target + /// @param[in] i_fail true if MCBIST failed + /// @param[in] i_vref the VREF value + /// @param[in] i_delay delay offset value + /// @param[in] i_offset true if the delay is positive + /// + fapi2::ReturnCode box_shmoo_error_helper(const fapi2::Target<fapi2::TARGET_TYPE_MBA>& i_target, + const bool i_fail, + const uint8_t i_vref, + const uint8_t i_delay, + const bool i_offset) + { + const bool l_pass = !i_fail; + FAPI_ASSERT(l_pass, + fapi2::MSS_BOX_SHMOO_FAIL() + .set_TARGET(i_target) + .set_VREF(i_vref) + .set_DELAY(i_delay) + .set_OFFSET(i_offset), + "%s FOUND FAILING MCBIST BIT AT %s 0x%02x DELAY and VREF 0x%02x!!!", mss::c_str(i_target), i_offset ? "+" : "-", + i_delay, i_vref) + + // Passing - send out an informational message and return success + FAPI_INF("%s FOUND PASSING MCBIST BIT AT %s 0x%02x DELAY and VREF 0x%02x!!!", mss::c_str(i_target), + i_offset ? "+" : "-", i_delay, i_vref); + return fapi2::FAPI2_RC_SUCCESS; + + fapi_try_exit: + // We're here, so we took a fail - log it as recovered, as we just want it to be informational + // Box shmoo is just used to collect data in case we take fails later + fapi2::logError(fapi2::current_err, fapi2::FAPI2_ERRL_SEV_RECOVERED); + fapi2::current_err = fapi2::FAPI2_RC_SUCCESS; + return fapi2::FAPI2_RC_SUCCESS; + } + + /// + /// @brief Does the box shmoo + /// @param[in] i_target Centaur input MBA + /// @return FAPI2_RC_SUCCESS iff successful + /// + fapi2::ReturnCode generic_shmoo::do_box_shmoo(const fapi2::Target<fapi2::TARGET_TYPE_MBA>& i_target) + { + fapi2::buffer<uint64_t> data_buffer_64; + uint8_t l_p = 0; + uint8_t l_rank = 0; + uint8_t l_dq = 0; + uint8_t l_n = 0; + uint8_t rank = 0; + uint8_t l_SCHMOO_NIBBLES = 18; + input_type_t l_input_type_e = WR_DQ; + access_type_t l_access_type_e = WRITE; + + uint8_t delay_train_step_size = 0; + FAPI_TRY(FAPI_ATTR_GET( fapi2::ATTR_CEN_MRW_WR_VREF_CHECK_VREF_STEP_SIZE, fapi2::Target<fapi2::TARGET_TYPE_SYSTEM>(), + delay_train_step_size)); + + for(l_p = 0; l_p < MAX_PORT; l_p++) + { + + for (l_rank = 0; l_rank < iv_MAX_RANKS[l_p]; l_rank++) + { + rank = valid_rank1[l_p][l_rank]; + + for(l_dq = 0; l_dq < BITS_PER_NIBBLE; l_dq++) + { + for (l_n = 0; l_n < l_SCHMOO_NIBBLES; l_n++) + { + SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.curr_val[l_dq + l_n * BITS_PER_NIBBLE] = + (SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.nom_val[l_dq + + l_n * 4] + delay_train_step_size); + FAPI_TRY(mss_access_delay_reg_schmoo(i_target, l_access_type_e, l_p, rank, l_input_type_e, l_dq + l_n * BITS_PER_NIBBLE, + 0, + SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.curr_val[l_dq + l_n * BITS_PER_NIBBLE])); + } + } + } + } + + FAPI_TRY(do_mcbist_reset(i_target), "%s generic_shmoo::find_bound do_mcbist_reset failed", mss::c_str(i_target)); + FAPI_TRY(do_mcbist_test(i_target), "%s generic_shmoo::find_bound do_mcbist_test failed", mss::c_str(i_target)); + + FAPI_TRY(getScom(i_target, CEN_MBA_MCB_CNTLSTATQ, data_buffer_64)); + + // Note: the below function checks if we failed and logs an error if we did + // Box shmoo is a margins check, as such we want to just note the fail and move on in the IPL + // If we fail, that's ok we might have adequate margins to run, but we'll want to note it and move on + // True for increasing delay + FAPI_TRY(box_shmoo_error_helper(i_target, data_buffer_64.getBit<2>(), iv_vref_mul, delay_train_step_size, true)); + + { + + uint8_t l_CDarray0[DIMM_TO_C4_DQ_ENTRIES] = { 0 }; + uint8_t l_CDarray1[DIMM_TO_C4_DQ_ENTRIES] = { 0 }; + FAPI_TRY(mcb_error_map(i_target, mcbist_error_map, l_CDarray0, l_CDarray1, + count_bad_dq), "Failed mcb_error_map"); + } + + for(l_p = 0; l_p < MAX_PORT; l_p++) + { + + for (l_rank = 0; l_rank < iv_MAX_RANKS[l_p]; l_rank++) + { + rank = valid_rank1[l_p][l_rank]; + + for(l_dq = 0; l_dq < BITS_PER_NIBBLE; l_dq++) + { + for (l_n = 0; l_n < l_SCHMOO_NIBBLES; l_n++) + { + SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.curr_val[l_dq + l_n * BITS_PER_NIBBLE] = + (SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.nom_val[l_dq + + l_n * 4] - delay_train_step_size); + + FAPI_TRY(mss_access_delay_reg_schmoo(i_target, l_access_type_e, l_p, rank, l_input_type_e, l_dq + l_n * BITS_PER_NIBBLE, + 0, + SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.curr_val[l_dq + l_n * BITS_PER_NIBBLE])); + } + } + } + } + + + FAPI_TRY(do_mcbist_reset(i_target), "%s generic_shmoo::find_bound do_mcbist_reset failed", mss::c_str(i_target)); + FAPI_TRY(do_mcbist_test(i_target), "%s generic_shmoo::find_bound do_mcbist_test failed", mss::c_str(i_target)); + + FAPI_TRY(getScom(i_target, CEN_MBA_MCB_CNTLSTATQ, data_buffer_64)); + + // Note: the below function checks if we failed and logs an error if we did + // Box shmoo is a margins check, as such we want to just note the fail and move on in the IPL + // If we fail, that's ok we might have adequate margins to run, but we'll want to note it and move on + // False for decreasing delay + FAPI_TRY(box_shmoo_error_helper(i_target, data_buffer_64.getBit<2>(), iv_vref_mul, delay_train_step_size, false)); + + { + + uint8_t l_CDarray0[DIMM_TO_C4_DQ_ENTRIES] = { 0 }; + uint8_t l_CDarray1[DIMM_TO_C4_DQ_ENTRIES] = { 0 }; + FAPI_TRY(mcb_error_map(i_target, mcbist_error_map, l_CDarray0, l_CDarray1, + count_bad_dq), "Failed mcb_error_map"); + } + + for(l_p = 0; l_p < MAX_PORT; l_p++) + { + for (l_rank = 0; l_rank < iv_MAX_RANKS[l_p]; l_rank++) + { + rank = valid_rank1[l_p][l_rank]; + + for(l_dq = 0; l_dq < BITS_PER_NIBBLE; l_dq++) + { + for (l_n = 0; l_n < l_SCHMOO_NIBBLES; l_n++) + { + FAPI_TRY(mss_access_delay_reg_schmoo(i_target, l_access_type_e, l_p, rank, l_input_type_e, l_dq + l_n * BITS_PER_NIBBLE, + 0, + SHMOO[iv_SHMOO_ON].MBA.P[l_p].S[rank].K.nom_val[l_dq + l_n * BITS_PER_NIBBLE])); + } + } + } + } + + fapi_try_exit: + return fapi2::current_err; + } + }//Extern C |
