int opal_machine_check(struct pt_regs *regs)
{
struct machine_check_event evt;
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return 0;
/* Print things out */
if (evt.version != MCE_V1) {
pr_err("Machine Check Exception, Unknown event version %d !\n",
evt.version);
return 0;
}
machine_check_print_event_info(&evt);
if (opal_recover_mce(regs, &evt))
return 1;
return 0;
}
/*
* Queue up the MCE event which then can be handled later.
*/
void machine_check_queue_event(void)
{
int index;
struct machine_check_event evt;
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return;
index = __this_cpu_inc_return(mce_queue_count) - 1;
/* If queue is full, just return for now. */
if (index >= MAX_MC_EVT) {
__this_cpu_dec(mce_queue_count);
return;
}
memcpy(this_cpu_ptr(&mce_event_queue[index]), &evt, sizeof(evt));
/* Queue irq work to process this event later. */
irq_work_queue(&mce_event_process_work);
}
/*
* Queue up the MCE event which then can be handled later.
*/
void machine_check_queue_event(void)
{
int index;
struct machine_check_event evt;
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return;
index = __get_cpu_var(mce_queue_count)++;
/* If queue is full, just return for now. */
if (index >= MAX_MC_EVT) {
__get_cpu_var(mce_queue_count)--;
return;
}
__get_cpu_var(mce_event_queue[index]) = evt;
/* Queue irq work to process this event later. */
irq_work_queue(&mce_event_process_work);
}
void release_mce_event(void)
{
get_mce_event(NULL, true);
}