#define OPAL_SET_POWER_SHIFT_RATIO 155
#define OPAL_SENSOR_GROUP_CLEAR 156
#define OPAL_PCI_SET_P2P 157
+#define OPAL_QUIESCE 158
#define OPAL_NPU_SPA_SETUP 159
#define OPAL_NPU_SPA_CLEAR_CACHE 160
#define OPAL_NPU_TL_SET 161
#define OPAL_PCI_SET_PBCQ_TUNNEL_BAR 165
#define OPAL_LAST 165
+#define QUIESCE_HOLD 1 /* Spin all calls at entry */
+#define QUIESCE_REJECT 2 /* Fail all calls with OPAL_BUSY */
+#define QUIESCE_LOCK_BREAK 3 /* Set to ignore locks. */
+#define QUIESCE_RESUME 4 /* Un-quiesce */
+#define QUIESCE_RESUME_FAST_REBOOT 5 /* Un-quiesce, fast reboot */
+
/* Device tree flags */
/*
int opal_sensor_group_clear(u32 group_hndl, int token);
s64 opal_signal_system_reset(s32 cpu);
+s64 opal_quiesce(u64 shutdown_type, s32 cpu);
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
OPAL_CALL(opal_get_power_shift_ratio, OPAL_GET_POWER_SHIFT_RATIO);
OPAL_CALL(opal_set_power_shift_ratio, OPAL_SET_POWER_SHIFT_RATIO);
OPAL_CALL(opal_sensor_group_clear, OPAL_SENSOR_GROUP_CLEAR);
+OPAL_CALL(opal_quiesce, OPAL_QUIESCE);
OPAL_CALL(opal_npu_spa_setup, OPAL_NPU_SPA_SETUP);
OPAL_CALL(opal_npu_spa_clear_cache, OPAL_NPU_SPA_CLEAR_CACHE);
OPAL_CALL(opal_npu_tl_set, OPAL_NPU_TL_SET);
int64_t rc;
if (cpu >= 0) {
- rc = opal_signal_system_reset(get_hard_smp_processor_id(cpu));
+ int h = get_hard_smp_processor_id(cpu);
+
+ if (opal_check_token(OPAL_QUIESCE))
+ opal_quiesce(QUIESCE_HOLD, h);
+
+ rc = opal_signal_system_reset(h);
+
+ if (opal_check_token(OPAL_QUIESCE))
+ opal_quiesce(QUIESCE_RESUME, h);
+
if (rc != OPAL_SUCCESS)
return 0;
return 1;
bool success = true;
int c;
+ if (opal_check_token(OPAL_QUIESCE))
+ opal_quiesce(QUIESCE_HOLD, -1);
/*
* We do not use broadcasts (yet), because it's not clear
if (rc != OPAL_SUCCESS)
success = false;
}
+
+ if (opal_check_token(OPAL_QUIESCE))
+ opal_quiesce(QUIESCE_RESUME, -1);
+
if (success)
return 1;