diff options
| author | Yue Du <daviddu@us.ibm.com> | 2017-02-16 16:49:55 -0600 |
|---|---|---|
| committer | hostboot <hostboot@us.ibm.com> | 2018-08-22 17:54:25 -0500 |
| commit | 147aa0e27bfb67fba41b9a9187b60c4922f3b5b3 (patch) | |
| tree | edea5ef78a83fc59eff20bcb0c173dbe74e931e8 /import | |
| parent | 9636f085a3812776d118066520177da5411cde48 (diff) | |
| download | talos-hcode-147aa0e27bfb67fba41b9a9187b60c4922f3b5b3.tar.gz talos-hcode-147aa0e27bfb67fba41b9a9187b60c4922f3b5b3.zip | |
STOP: Fix L2 purge abort by pc interrupt on core handoff to sgpe
Change-Id: I738ac02f0fccff8aadfe6b78535975cdc48b9155
Original-Change-Id: I81973d4de46f134f72dc9582aae7e6b6ea749e42
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/36602
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: JAMES DEZELLE <jdezelle@us.ibm.com>
Reviewed-by: ASHISH A. MORE <ashish.more@in.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Diffstat (limited to 'import')
| -rwxr-xr-x | import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c index 86787611..d27fda58 100755 --- a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c +++ b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c @@ -806,12 +806,15 @@ p9_cme_stop_entry() core_aborted |= CME_MASK_C1; } - //======================================= - MARK_TAG(SE_PURGE_L2_ABORT, core_aborted) - //======================================= + if (core_aborted) + { + //======================================= + MARK_TAG(SE_PURGE_L2_ABORT, core_aborted) + //======================================= - PK_TRACE_DBG("Abort: L2+NCU purge aborted by core[%d]", core_aborted); - out32(CME_LCL_SICR_OR, BIT32(19) | BIT32(23)); + PK_TRACE_DBG("Abort: L2+NCU purge aborted by core[%d]", core_aborted); + out32(CME_LCL_SICR_OR, BIT32(19) | BIT32(23)); + } } #endif @@ -828,10 +831,17 @@ p9_cme_stop_entry() MARK_TAG(SE_PURGE_L2_DONE, core_aborted ? core_aborted : CME_MASK_BC) //=================================================================== - // if core = 3 aborted = 1, core = 2(sgpe handoff) aborted (cme wakeup) - // if core = 1 aborted = 2, core = 1(sgpe handoff) aborted (sgpe wakeup) - // if core = 1 aborted = 1, core = 0(break) aborted (cme wakeup) - // if core = 2 aborted = 3, core = 0(break) aborted (cme wakeup) + // 1) if core = 3 aborted = 1, core = 2(sgpe handoff) aborted (cme wakeup) + // 2) if core = 1 aborted = 1, core = 0(break) aborted (cme wakeup) + // 3) if core = 2 aborted = 3, core = 0(break) aborted (cme/sgpe wakeup) + // 4) if core = 1 aborted = 2, core = 1(sgpe handoff) aborted (sgpe wakeup) + // for case 3) and 4) on the other core already handoff to sgpe + // if rgwu or spwu, fine because it will be sgpe wakeup + // if pc, there wont be sgpe wakeup due to notify bug, + // so ignore this case for abortion. otherwise, + // for case 3) core is waking up by tag along with another core + // but leave stop8 record at sgpe + // for case 4) l2 is not purged and sgpe will do stop8 if (core != (core_aborted & core)) { core &= ~core_aborted; |
