Release 4.14 arch/mips/txx9/rbtx4939/irq.c
/*
* Toshiba RBTX4939 interrupt routines
* Based on linux/arch/mips/txx9/rbtx4938/irq.c,
* and RBTX49xx patch from CELF patch archive.
*
* Copyright (C) 2000-2001,2005-2006 Toshiba Corporation
* 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
* terms of the GNU General Public License version 2. This program is
* licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/mipsregs.h>
#include <asm/txx9/rbtx4939.h>
/*
* RBTX4939 IOC controller definition
*/
static void rbtx4939_ioc_irq_unmask(struct irq_data *d)
{
int ioc_nr = d->irq - RBTX4939_IRQ_IOC;
writeb(readb(rbtx4939_ien_addr) | (1 << ioc_nr), rbtx4939_ien_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 30 | 83.33% | 1 | 50.00% |
| Thomas Gleixner | 6 | 16.67% | 1 | 50.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
static void rbtx4939_ioc_irq_mask(struct irq_data *d)
{
int ioc_nr = d->irq - RBTX4939_IRQ_IOC;
writeb(readb(rbtx4939_ien_addr) & ~(1 << ioc_nr), rbtx4939_ien_addr);
mmiowb();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 34 | 85.00% | 1 | 50.00% |
| Thomas Gleixner | 6 | 15.00% | 1 | 50.00% |
| Total | 40 | 100.00% | 2 | 100.00% |
static struct irq_chip rbtx4939_ioc_irq_chip = {
.name = "IOC",
.irq_mask = rbtx4939_ioc_irq_mask,
.irq_unmask = rbtx4939_ioc_irq_unmask,
};
static inline int rbtx4939_ioc_irqroute(void)
{
unsigned char istat = readb(rbtx4939_ifac2_addr);
if (unlikely(istat == 0))
return -1;
return RBTX4939_IRQ_IOC + __fls8(istat);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 39 | 100.00% | 1 | 100.00% |
| Total | 39 | 100.00% | 1 | 100.00% |
static int rbtx4939_irq_dispatch(int pending)
{
int irq;
if (pending & CAUSEF_IP7)
return MIPS_CPU_IRQ_BASE + 7;
irq = tx4939_irq();
if (likely(irq >= 0)) {
/* redirect IOC interrupts */
switch (irq) {
case RBTX4939_IRQ_IOCINT:
irq = rbtx4939_ioc_irqroute();
break;
}
} else if (pending & CAUSEF_IP0)
irq = MIPS_CPU_IRQ_BASE + 0;
else if (pending & CAUSEF_IP1)
irq = MIPS_CPU_IRQ_BASE + 1;
else
irq = -1;
return irq;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 90 | 100.00% | 1 | 100.00% |
| Total | 90 | 100.00% | 1 | 100.00% |
void __init rbtx4939_irq_setup(void)
{
int i;
/* mask all IOC interrupts */
writeb(0, rbtx4939_ien_addr);
/* clear SoftInt interrupts */
writeb(0, rbtx4939_softint_addr);
txx9_irq_dispatch = rbtx4939_irq_dispatch;
tx4939_irq_init();
for (i = RBTX4939_IRQ_IOC;
i < RBTX4939_IRQ_IOC + RBTX4939_NR_IRQ_IOC; i++)
irq_set_chip_and_handler(i, &rbtx4939_ioc_irq_chip,
handle_level_irq);
irq_set_chained_handler(RBTX4939_IRQ_IOCINT, handle_simple_irq);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 64 | 96.97% | 1 | 50.00% |
| Thomas Gleixner | 2 | 3.03% | 1 | 50.00% |
| Total | 66 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 291 | 93.87% | 1 | 25.00% |
| Thomas Gleixner | 16 | 5.16% | 2 | 50.00% |
| David Howells | 3 | 0.97% | 1 | 25.00% |
| Total | 310 | 100.00% | 4 | 100.00% |
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