Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Songmao Tian |
123 |
63.40% |
1 |
10.00% |
| Afzal Mohammed |
47 |
24.23% |
1 |
10.00% |
| Wu Zhangjin |
21 |
10.82% |
6 |
60.00% |
| Thomas Gleixner |
2 |
1.03% |
1 |
10.00% |
| Ralf Baechle |
1 |
0.52% |
1 |
10.00% |
| Total |
194 |
|
10 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*/
#include <linux/interrupt.h>
#include <asm/irq_cpu.h>
#include <asm/i8259.h>
#include <loongson.h>
static void i8259_irqdispatch(void)
{
int irq;
irq = i8259_irq();
if (irq >= 0)
do_IRQ(irq);
else
spurious_interrupt();
}
asmlinkage void mach_irq_dispatch(unsigned int pending)
{
if (pending & CAUSEF_IP7)
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP6) /* perf counter loverflow */
do_perfcnt_IRQ();
else if (pending & CAUSEF_IP5)
i8259_irqdispatch();
else if (pending & CAUSEF_IP2)
bonito_irqdispatch();
else
spurious_interrupt();
}
void __init mach_init_irq(void)
{
int irq;
/* init all controller
* 0-15 ------> i8259 interrupt
* 16-23 ------> mips cpu interrupt
* 32-63 ------> bonito irq
*/
/* most bonito irq should be level triggered */
LOONGSON_INTEDGE = LOONGSON_ICU_SYSTEMERR | LOONGSON_ICU_MASTERERR |
LOONGSON_ICU_RETRYERR | LOONGSON_ICU_MBOXES;
/* Sets the first-level interrupt dispatcher. */
mips_cpu_irq_init();
init_i8259_irqs();
bonito_irq_init();
/* bonito irq at IP2 */
irq = MIPS_CPU_IRQ_BASE + 2;
if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL))
pr_err("Failed to request irq %d (cascade)\n", irq);
/* 8259 irq at IP5 */
irq = MIPS_CPU_IRQ_BASE + 5;
if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL))
pr_err("Failed to request irq %d (cascade)\n", irq);
}