diff options
Diffstat (limited to 'src/import/chips/p9')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/pm/p9_pm_reset.C | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_pm_reset.C b/src/import/chips/p9/procedures/hwp/pm/p9_pm_reset.C index c2a6d8593..cbe5e4c24 100644 --- a/src/import/chips/p9/procedures/hwp/pm/p9_pm_reset.C +++ b/src/import/chips/p9/procedures/hwp/pm/p9_pm_reset.C @@ -183,6 +183,21 @@ fapi2::ReturnCode p9_pm_reset( FAPI_TRY(special_wakeup_all(i_target, true),//Enable splwkup "ERROR: Failed to remove EX chiplets from special wakeup"); + + // To prevent unnecessary Quad Special Wakeup request timeout, + // Upon upcoming reset(ppe down, thus cannot service quad special wakeup), + // Assert Quad Special Wakeup Done as Core Special Wakeup Done is asserted + // Note: This Done will be reset by SGPE code upon reboot + FAPI_DBG("Assert Quad Special Wakeup Done upon upcoming PPE reset"); + std::vector<fapi2::Target<fapi2::TARGET_TYPE_EQ>> l_eqChiplets = + i_target.getChildren<fapi2::TARGET_TYPE_EQ>(fapi2::TARGET_STATE_FUNCTIONAL); + + for ( auto l_itr = l_eqChiplets.begin(); l_itr != l_eqChiplets.end(); ++l_itr) + { + FAPI_TRY(fapi2::putScom(*l_itr, EQ_PPM_GPMMR_SCOM2, l_data64.flush<0>().setBit<0>()), + "ERROR: Failed to write EQ_PPM_GPMMR_SCOM2"); + } + FAPI_TRY(p9_pm_glob_fir_trace(i_target, "After EX in special wakeup")); } else |
