diff options
| -rw-r--r-- | import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_irq_handlers.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_irq_handlers.c b/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_irq_handlers.c index df7c38f7..25986506 100644 --- a/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_irq_handlers.c +++ b/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_irq_handlers.c @@ -251,6 +251,7 @@ p9_sgpe_ipi3_low_handler(void* arg, PkIrqId irq) static void p9_sgpe_pig_type23_parser(const uint32_t type) { + uint32_t timeout = 0; uint32_t qloop = 0; uint32_t cloop = 0; uint32_t cstart = 0; @@ -395,16 +396,20 @@ p9_sgpe_pig_type23_parser(const uint32_t type) // request exit if (cpayload & TYPE2_PAYLOAD_EXIT_EVENT) { - if (!(scom_data.words.upper & BIT32(13))) + // phantom can be processed when WNS already handoff to cme by a different wakeup + // OR can be delayed long enough when WNS handoff back to sgpe by next cme entry + if ((!(scom_data.words.upper & BIT32(13))) || + (G_sgpe_stop_record.level[qloop][cloop] == 0)) { - if (cpayload == 0x400) + // type2 duplicate wakeup can happen due to manual PCWU vs other HW wakeup + if (type == 2) { - PK_TRACE_INF("WARNING: Ignore Phantom PCWU PIG \ + PK_TRACE_INF("WARNING: Ignore Phantom Type2 Wakeup PIG \ (already handoff cme by other wakeup"); } - else + else // otherwise PPM shouldnt send duplicate pig if wakeup is present { - PK_TRACE_INF("ERROR: Received Phantom Exit PIG \ + PK_TRACE_INF("ERROR: Received Phantom Type3 Wakeup PIG \ When Wakeup_notify_select = 0. HALT SGPE!"); PK_PANIC(SGPE_PIG_TYPE23_EXIT_WNS_CME); } @@ -439,7 +444,15 @@ p9_sgpe_pig_type23_parser(const uint32_t type) else if ((G_sgpe_stop_record.level[qloop][cloop] = (cpayload & TYPE2_PAYLOAD_STOP_LEVEL))) { - if (!(scom_data.words.upper & BIT32(13))) + timeout = 16; + + while((!(scom_data.words.upper & BIT32(13))) && timeout) + { + GPE_GETSCOM(GPE_SCOM_ADDR_CORE(CPPM_CPMMR, cindex), scom_data.value); + timeout--; + } + + if (!timeout) { PK_TRACE_ERR("ERROR: Received Phantom Entry PIG \ When Wakeup_notify_select = 0. HALT SGPE!"); |
