diff options
Diffstat (limited to 'import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c')
| -rw-r--r-- | import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c b/import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c index 41d974cd..c9f8d0f5 100644 --- a/import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c +++ b/import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_thread_process_requests.c @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HCODE Project */ /* */ -/* COPYRIGHT 2016,2018 */ +/* COPYRIGHT 2016,2019 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -1210,18 +1210,32 @@ inline void p9_pgpe_process_registration() VPD_PT_SET_BIASED_SYSP); //Move voltage by voltage step-size - while(G_pgpe_pstate_record.eVidCurr != targetEVid) + while(G_pgpe_pstate_record.biasSyspExtVrmCurr != targetEVid) { - if ((targetEVid - G_pgpe_pstate_record.eVidCurr) <= G_gppb->ext_vrm_step_size_mv) + if ((targetEVid - G_pgpe_pstate_record.biasSyspExtVrmCurr) <= G_gppb->ext_vrm_step_size_mv) { - G_pgpe_pstate_record.eVidNext = targetEVid; + G_pgpe_pstate_record.biasSyspExtVrmNext = targetEVid; + G_pgpe_pstate_record.psNext.fields.glb = G_pgpe_pstate_record.psTarget.fields.glb; } else { - G_pgpe_pstate_record.eVidNext = G_pgpe_pstate_record.eVidCurr + G_gppb->ext_vrm_step_size_mv; + G_pgpe_pstate_record.biasSyspExtVrmNext = G_pgpe_pstate_record.biasSyspExtVrmCurr + G_gppb->ext_vrm_step_size_mv; + G_pgpe_pstate_record.psNext.fields.glb = p9_pgpe_gppb_intp_ps_from_ext_vdd(G_pgpe_pstate_record.biasSyspExtVrmNext); + + //It's possible that the interpolation function returns Pstate higher than + //target due to rounding errors, so we adjust back. + if (G_pgpe_pstate_record.psNext.fields.glb > G_pgpe_pstate_record.psTarget.fields.glb) + { + G_pgpe_pstate_record.psNext.fields.glb = G_pgpe_pstate_record.psTarget.fields.glb; + } + + //Make sure voltage written corresponds exactly to a pstate + G_pgpe_pstate_record.biasSyspExtVrmNext = p9_pgpe_gppb_intp_vdd_from_ps(G_pgpe_pstate_record.psNext.fields.glb, + VPD_PT_SET_BIASED_SYSP); + } - p9_pgpe_pstate_updt_ext_volt(targetEVid); + p9_pgpe_pstate_updt_ext_volt(); } //Set GlobalPSCurr and Next |
