diff options
Diffstat (limited to 'src/usr/hwpf/hwp/core_activate/core_activate.C')
| -rw-r--r-- | src/usr/hwpf/hwp/core_activate/core_activate.C | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/usr/hwpf/hwp/core_activate/core_activate.C b/src/usr/hwpf/hwp/core_activate/core_activate.C index 7e37a4609..934345ef3 100644 --- a/src/usr/hwpf/hwp/core_activate/core_activate.C +++ b/src/usr/hwpf/hwp/core_activate/core_activate.C @@ -160,6 +160,22 @@ void* call_host_activate_master( void *io_pArgs ) "proc_prep_master_winkle SUCCESS" ); } + //Because of a bug in how the SBE injects the IPI used to wake + //up the master core, need to ensure no mailbox traffic + //or even an interrupt in the interrupt presenter + // 1) suspend the mailbox with interrupt disable + // 2) ensure that interrupt presenter is drained + l_errl = MBOX::suspend(true, true); + if (l_errl) + { + TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, + "call_host_activate_master ERROR : MBOX::suspend"); + break; + } + + TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "drainging interrupt Q"); + INTR::drainQueue(); + // Call p8_block_wakeup_intr to prevent stray interrupts from // popping core out of winkle before SBE sees it. @@ -254,6 +270,15 @@ void* call_host_activate_master( void *io_pArgs ) TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "Returned from Winkle." ); + //Re-enable the mailbox + l_errl = MBOX::resume(); + if (l_errl) + { + TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, + "call_host_activate_master ERROR : MBOX::resume"); + break; + } + TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "Call proc_stop_deadman_timer. Target %.8X", TARGETING::get_huid(l_cpu_target) ); |
