genode/repos/base-hw/src/core/spec/arm/kernel/cpu_idle.cc

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993 B
C++

/*
* \brief Class for kernel data that is needed to manage a specific CPU
* \author Martin Stein
* \author Stefan Kalkowski
* \date 2014-01-14
*/
/*
* Copyright (C) 2014 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
/* core includes */
#include <assert.h>
#include <kernel/cpu.h>
#include <kernel/kernel.h>
#include <kernel/pd.h>
using namespace Kernel;
Cpu_idle::Cpu_idle(Cpu * const cpu) : Cpu_job(Cpu_priority::MIN, 0)
{
Cpu_job::cpu(cpu);
cpu_exception = RESET;
ip = (addr_t)&_main;
sp = (addr_t)&_stack[stack_size];
init_thread((addr_t)core_pd()->translation_table(), core_pd()->asid);
}
void Cpu_idle::exception(unsigned const cpu)
{
switch (cpu_exception) {
case INTERRUPT_REQUEST: _interrupt(cpu); return;
case FAST_INTERRUPT_REQUEST: _interrupt(cpu); return;
case RESET: return;
default: assert(0); }
}