// SPDX-License-Identifier: GPL-2.0
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm /traps.h>
#include <asm /apollohw.h>
#include "apollo.h"
static unsigned int apollo_irq_startup(struct irq_data *data)
{
unsigned int irq = data->irq;
if (irq < 8 )
*(volatile unsigned char *)(pica+1 ) &= ~(1 << irq);
else
*(volatile unsigned char *)(picb+1 ) &= ~(1 << (irq - 8 ));
return 0 ;
}
static void apollo_irq_shutdown(struct irq_data *data)
{
unsigned int irq = data->irq;
if (irq < 8 )
*(volatile unsigned char *)(pica+1 ) |= (1 << irq);
else
*(volatile unsigned char *)(picb+1 ) |= (1 << (irq - 8 ));
}
static void apollo_irq_eoi(struct irq_data *data)
{
*(volatile unsigned char *)(pica) = 0 x20;
*(volatile unsigned char *)(picb) = 0 x20;
}
static struct irq_chip apollo_irq_chip = {
.name = "apollo" ,
.irq_startup = apollo_irq_startup,
.irq_shutdown = apollo_irq_shutdown,
.irq_eoi = apollo_irq_eoi,
};
void __init dn_init_IRQ(void )
{
m68k_setup_user_interrupt(VEC_USER + 96 , 16 );
m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,
IRQ_APOLLO, 16 );
}
Messung V0.5 in Prozent C=94 H=86 G=89
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-07)
¤
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