// SPDX-License-Identifier: GPL-2.0
#ifndef _WINDOWS

#include <linux/cpu.h>
#include <linux/percpu-defs.h>
#include <linux/percpu.h>

#include "ps3_htp_trace_id.h"
#include "ps3_err_def.h"
#include "ps3_trace_id_alloc.h"

static DEFINE_PER_CPU(union ps3_trace_id, ps3_trace_id);

static unsigned char g_ps3_trace_id_switch = ps3_trace_id_switch_open;

void ps3_trace_id_alloc(unsigned long long *trace_id)
{
	union ps3_trace_id *id = NULL;
	unsigned long long trace_id_count = 0;

	if (g_ps3_trace_id_switch != ps3_trace_id_switch_open) {
		*trace_id = 0;
		goto l_out;
	}

	preempt_disable();
	id = this_cpu_ptr(&ps3_trace_id);

	trace_id_count = id->ps3_trace_id.count;
	++trace_id_count;
	id->ps3_trace_id.count =
		(trace_id_count & TRACE_ID_CHIP_OUT_COUNT_MASK);

	*trace_id = id->trace_id;
	preempt_enable();

l_out:
	return;
}

void ps3_trace_id_init(void)
{
	int cpu = 0;
	union ps3_trace_id *id = NULL;

	for_each_possible_cpu(cpu) {
		id = &per_cpu(ps3_trace_id, cpu);
		id->ps3_trace_id.flag = ps3_trace_id_flag_host_driver;
		id->ps3_trace_id.cpu_id = (cpu & TRACE_ID_CHIP_OUT_CPUID_MASK);
		id->ps3_trace_id.count = 0;
	}

}

int ps3_trace_id_switch_store(unsigned char value)
{
	int ret = PS3_SUCCESS;

	if (value != ps3_trace_id_switch_close &&
	    value != ps3_trace_id_switch_open) {
		ret = PS3_FAILED;
		goto l_out;
	}

	g_ps3_trace_id_switch = value;

l_out:
	return ret;
}

unsigned char ps3_trace_id_switch_show(void)
{
	return g_ps3_trace_id_switch;
}
#endif