mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 12:40:08 +00:00
e688df6bc4
This cleanup makes the number of objects depending on qapi/error.h
drop from 1910 (out of 4743) to 1612 in my "build everything" tree.
While there, separate #include from file comment with a blank line,
and drop a useless comment on why qemu/osdep.h is included first.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-5-armbru@redhat.com>
[Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
|
|
* Altera Nios2 CPU PIC
|
|
*
|
|
* Copyright (c) 2016 Marek Vasut <marek.vasut@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see
|
|
* <http://www.gnu.org/licenses/lgpl-2.1.html>
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu-common.h"
|
|
#include "cpu.h"
|
|
|
|
#include "qemu/config-file.h"
|
|
|
|
#include "boot.h"
|
|
|
|
static void nios2_pic_cpu_handler(void *opaque, int irq, int level)
|
|
{
|
|
Nios2CPU *cpu = opaque;
|
|
CPUNios2State *env = &cpu->env;
|
|
CPUState *cs = CPU(cpu);
|
|
int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD;
|
|
|
|
if (type == CPU_INTERRUPT_HARD) {
|
|
env->irq_pending = level;
|
|
|
|
if (level && (env->regs[CR_STATUS] & CR_STATUS_PIE)) {
|
|
env->irq_pending = 0;
|
|
cpu_interrupt(cs, type);
|
|
} else if (!level) {
|
|
env->irq_pending = 0;
|
|
cpu_reset_interrupt(cs, type);
|
|
}
|
|
} else {
|
|
if (level) {
|
|
cpu_interrupt(cs, type);
|
|
} else {
|
|
cpu_reset_interrupt(cs, type);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nios2_check_interrupts(CPUNios2State *env)
|
|
{
|
|
Nios2CPU *cpu = nios2_env_get_cpu(env);
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
if (env->irq_pending) {
|
|
env->irq_pending = 0;
|
|
cpu_interrupt(cs, CPU_INTERRUPT_HARD);
|
|
}
|
|
}
|
|
|
|
qemu_irq *nios2_cpu_pic_init(Nios2CPU *cpu)
|
|
{
|
|
return qemu_allocate_irqs(nios2_pic_cpu_handler, cpu, 2);
|
|
}
|