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| author | Christopher M. Riedl <cmriedl@us.ibm.com> | 2017-07-28 09:16:20 -0500 |
|---|---|---|
| committer | Joshua Hunsberger <jahunsbe@us.ibm.com> | 2017-10-23 18:39:10 -0500 |
| commit | 030ad7208c7545d5c8eaf9c5d0962c5cef5b7843 (patch) | |
| tree | 5598b990b40e73307c8167e94ab55b9a16e6f18a | |
| parent | 84cb50fd85fb7efdff2891493c5d426a98d74210 (diff) | |
| download | talos-hcode-030ad7208c7545d5c8eaf9c5d0962c5cef5b7843.tar.gz talos-hcode-030ad7208c7545d5c8eaf9c5d0962c5cef5b7843.zip | |
PM: Clip CME Boot Pstate to UT
Change-Id: I7638bd75e8b38895f72ca342ef5f3bd0c31f1c12
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/43858
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: BRIAN D. VICTOR <brian.d.victor1@ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
| -rw-r--r-- | import/chips/p9/procedures/ppe_closed/cme/pstate_cme/p9_cme_thread_db.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/cme/pstate_cme/p9_cme_thread_db.c b/import/chips/p9/procedures/ppe_closed/cme/pstate_cme/p9_cme_thread_db.c index 8d776d31..1d10b566 100644 --- a/import/chips/p9/procedures/ppe_closed/cme/pstate_cme/p9_cme_thread_db.c +++ b/import/chips/p9/procedures/ppe_closed/cme/pstate_cme/p9_cme_thread_db.c @@ -152,8 +152,10 @@ void p9_cme_pstate_db_thread(void* arg) // Pstate Clocking Initialization (QM) // Calculate the initial pstate ippm_read(QPPM_DPLL_STAT, &scom_data); - G_cme_pstate_record.quadPstate = (uint32_t)G_lppb->dpll_pstate0_value - - (uint32_t)((scom_data & BITS64(1, 11)) >> SHIFT64(11)); + int32_t pstate = (int32_t)G_lppb->dpll_pstate0_value + - (int32_t)((scom_data & BITS64(1, 11)) >> SHIFT64(11)); + // Clip the pstate at ultra-turbo, ie. pstate=0 + G_cme_pstate_record.quadPstate = (pstate < 0) ? 0 : (uint32_t)pstate; PK_TRACE_INF("qm | initial pstate=%d", G_cme_pstate_record.quadPstate); #ifdef USE_CME_VDM_FEATURE |
