45 lines
907 B
C++
45 lines
907 B
C++
/*
|
|
* \brief Cpu class implementation specific to Cortex A15 SMP
|
|
* \author Stefan Kalkowski
|
|
* \date 2015-12-09
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2015-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
/* core includes */
|
|
#include <kernel/cpu.h>
|
|
#include <kernel/lock.h>
|
|
#include <kernel/pd.h>
|
|
#include <pic.h>
|
|
#include <board.h>
|
|
|
|
/* base-hw includes */
|
|
#include <kernel/perf_counter.h>
|
|
|
|
using namespace Kernel;
|
|
|
|
/* entrypoint for non-boot CPUs */
|
|
extern "C" void * _start_secondary_cpus;
|
|
|
|
/* indicates boot cpu status */
|
|
static volatile bool primary_cpu = true;
|
|
|
|
|
|
void Kernel::Cpu::init(Kernel::Pic &pic)
|
|
{
|
|
{
|
|
Lock::Guard guard(data_lock());
|
|
|
|
/* enable performance counter */
|
|
perf_counter()->enable();
|
|
|
|
/* enable timer interrupt */
|
|
pic.unmask(_timer.interrupt_id(), id());
|
|
}
|
|
}
|