select HAVE_IDE
select HAVE_AOUT if MMU
select GENERIC_ATOMIC64 if MMU
- select HAVE_GENERIC_HARDIRQS if !MMU
- select GENERIC_IRQ_SHOW if !MMU
+ select HAVE_GENERIC_HARDIRQS
+ select GENERIC_IRQ_SHOW
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
config RWSEM_GENERIC_SPINLOCK
bool
depends on MMU && !MMU_MOTOROLA
-config USE_GENERIC_HARDIRQS
- bool "Use genirq"
- depends on MMU
- select HAVE_GENERIC_HARDIRQS
- select GENERIC_IRQ_SHOW
-
menu "Platform setup"
source arch/m68k/Kconfig.cpu
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#endif
#include <asm/irq.h>
#include <asm/traps.h>
* The builtin Amiga hardware interrupt handlers.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
static void ami_int1(unsigned int irq, struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
generic_handle_irq(IRQ_AMIGA_DSKSYN);
}
}
-#else /* !CONFIG_GENERIC_HARDIRQS */
-static irqreturn_t ami_int1(int irq, void *dev_id)
-{
- unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
-
- /* if serial transmit buffer empty, interrupt */
- if (ints & IF_TBE) {
- amiga_custom.intreq = IF_TBE;
- generic_handle_irq(IRQ_AMIGA_TBE);
- }
-
- /* if floppy disk transfer complete, interrupt */
- if (ints & IF_DSKBLK) {
- amiga_custom.intreq = IF_DSKBLK;
- generic_handle_irq(IRQ_AMIGA_DSKBLK);
- }
-
- /* if software interrupt set, interrupt */
- if (ints & IF_SOFT) {
- amiga_custom.intreq = IF_SOFT;
- generic_handle_irq(IRQ_AMIGA_SOFT);
- }
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ami_int3(int irq, void *dev_id)
-{
- unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
-
- /* if a blitter interrupt */
- if (ints & IF_BLIT) {
- amiga_custom.intreq = IF_BLIT;
- generic_handle_irq(IRQ_AMIGA_BLIT);
- }
-
- /* if a copper interrupt */
- if (ints & IF_COPER) {
- amiga_custom.intreq = IF_COPER;
- generic_handle_irq(IRQ_AMIGA_COPPER);
- }
-
- /* if a vertical blank interrupt */
- if (ints & IF_VERTB) {
- amiga_custom.intreq = IF_VERTB;
- generic_handle_irq(IRQ_AMIGA_VERTB);
- }
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ami_int4(int irq, void *dev_id)
-{
- unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
-
- /* if audio 0 interrupt */
- if (ints & IF_AUD0) {
- amiga_custom.intreq = IF_AUD0;
- generic_handle_irq(IRQ_AMIGA_AUD0);
- }
-
- /* if audio 1 interrupt */
- if (ints & IF_AUD1) {
- amiga_custom.intreq = IF_AUD1;
- generic_handle_irq(IRQ_AMIGA_AUD1);
- }
-
- /* if audio 2 interrupt */
- if (ints & IF_AUD2) {
- amiga_custom.intreq = IF_AUD2;
- generic_handle_irq(IRQ_AMIGA_AUD2);
- }
-
- /* if audio 3 interrupt */
- if (ints & IF_AUD3) {
- amiga_custom.intreq = IF_AUD3;
- generic_handle_irq(IRQ_AMIGA_AUD3);
- }
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ami_int5(int irq, void *dev_id)
-{
- unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
-
- /* if serial receive buffer full interrupt */
- if (ints & IF_RBF) {
- /* acknowledge of IF_RBF must be done by the serial interrupt */
- generic_handle_irq(IRQ_AMIGA_RBF);
- }
-
- /* if a disk sync interrupt */
- if (ints & IF_DSKSYN) {
- amiga_custom.intreq = IF_DSKSYN;
- generic_handle_irq(IRQ_AMIGA_DSKSYN);
- }
- return IRQ_HANDLED;
-}
-#endif /* !CONFIG_GENERIC_HARDIRQS */
/*
void __init amiga_init_IRQ(void)
{
-#ifdef CONFIG_GENERIC_HARDIRQS
m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER,
AMI_STD_IRQS);
irq_set_chained_handler(IRQ_AUTO_3, ami_int3);
irq_set_chained_handler(IRQ_AUTO_4, ami_int4);
irq_set_chained_handler(IRQ_AUTO_5, ami_int5);
-#else /* !CONFIG_GENERIC_HARDIRQS */
- if (request_irq(IRQ_AUTO_1, ami_int1, 0, "int1", NULL))
- pr_err("Couldn't register int%d\n", 1);
- if (request_irq(IRQ_AUTO_3, ami_int3, 0, "int3", NULL))
- pr_err("Couldn't register int%d\n", 3);
- if (request_irq(IRQ_AUTO_4, ami_int4, 0, "int4", NULL))
- pr_err("Couldn't register int%d\n", 4);
- if (request_irq(IRQ_AUTO_5, ami_int5, 0, "int5", NULL))
- pr_err("Couldn't register int%d\n", 5);
-
- m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER,
- AMI_STD_IRQS);
-#endif /* !CONFIG_GENERIC_HARDIRQS */
/* turn off PCMCIA interrupts */
if (AMIGAHW_PRESENT(PCMCIA))
#include <linux/interrupt.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#else
-#include <asm/irq.h>
-#endif
#include <asm/traps.h>
#include <asm/apollohw.h>
-#ifndef CONFIG_GENERIC_HARDIRQS
-void dn_process_int(unsigned int irq, struct pt_regs *fp)
-{
- do_IRQ(irq, fp);
-
- *(volatile unsigned char *)(pica)=0x20;
- *(volatile unsigned char *)(picb)=0x20;
-}
-#endif
-
unsigned int apollo_irq_startup(struct irq_data *data)
{
unsigned int irq = data->irq;
*(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
}
-#ifdef CONFIG_GENERIC_HARDIRQS
void apollo_irq_eoi(struct irq_data *data)
{
*(volatile unsigned char *)(pica) = 0x20;
*(volatile unsigned char *)(picb) = 0x20;
}
-#endif
static struct irq_chip apollo_irq_chip = {
.name = "apollo",
.irq_startup = apollo_irq_startup,
.irq_shutdown = apollo_irq_shutdown,
-#ifdef CONFIG_GENERIC_HARDIRQS
.irq_eoi = apollo_irq_eoi,
-#endif
};
void __init dn_init_IRQ(void)
{
-#ifdef CONFIG_GENERIC_HARDIRQS
m68k_setup_user_interrupt(VEC_USER + 96, 16, NULL);
-#else
- m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int);
-#endif
m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,
IRQ_APOLLO, 16);
}
#define IRQ_FLG_STD (0x8000) /* internally used */
#endif
-#ifndef CONFIG_GENERIC_HARDIRQS
-
-#include <linux/linkage.h>
-#include <linux/hardirq.h>
-#include <linux/irqreturn.h>
-#include <linux/spinlock_types.h>
-
-struct pt_regs;
-
-/*
- * This structure is used to chain together the ISRs for a particular
- * interrupt source (if it supports chaining).
- */
-struct irq_data {
- unsigned int irq;
- irqreturn_t (*handler)(int, void *);
- void *dev_id;
- struct irq_data *next;
- unsigned long flags;
- const char *devname;
-};
-
-/*
- * This structure has only 4 elements for speed reasons
- */
-struct irq_handler {
- int (*handler)(int, void *);
- unsigned long flags;
- void *dev_id;
- const char *devname;
-};
-
-struct irq_chip {
- const char *name;
- unsigned int (*irq_startup)(struct irq_data *data);
- void (*irq_shutdown)(struct irq_data *data);
- void (*irq_enable)(struct irq_data *data);
- void (*irq_disable)(struct irq_data *data);
-};
-
-extern unsigned int m68k_irq_startup(struct irq_data *data);
-extern unsigned int m68k_irq_startup_irq(unsigned int irq);
-extern void m68k_irq_shutdown(struct irq_data *data);
-
-/*
- * This function returns a new struct irq_data
- */
-extern struct irq_data *new_irq_node(void);
-
-extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *));
-extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
- void (*handler)(unsigned int, struct pt_regs *));
-extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int);
-#define m68k_setup_irq_controller(chip, dummy, irq, cnt) \
- m68k_setup_irq_chip((chip), (irq), (cnt))
-
-extern void generic_handle_irq(unsigned int);
-asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
-
-#else /* CONFIG_GENERIC_HARDIRQS */
-
struct irq_data;
struct irq_chip;
struct irq_desc;
struct irq_desc *desc),
unsigned int irq, unsigned int cnt);
-#endif /* CONFIG_GENERIC_HARDIRQS */
-
extern unsigned int irq_canonicalize(unsigned int irq);
#else
#define Q40_IRQ10_MASK (1<<5)
#define Q40_IRQ14_MASK (1<<6)
#define Q40_IRQ15_MASK (1<<7)
-
-#ifndef CONFIG_GENERIC_HARDIRQS
-extern unsigned long q40_probe_irq_on (void);
-extern int q40_probe_irq_off (unsigned long irqs);
-#endif
extra-$(CONFIG_SUN3) := sun3-head.o
extra-y += vmlinux.lds
-obj-y := entry.o m68k_ksyms.o module.o process.o ptrace.o setup.o signal.o \
- sys_m68k.o syscalltable.o time.o traps.o
+obj-y := entry.o irq.o m68k_ksyms.o module.o process.o ptrace.o setup.o \
+ signal.o sys_m68k.o syscalltable.o time.o traps.o
obj-$(CONFIG_MMU) += ints.o vectors.o
-devres-$(CONFIG_MMU) = ../../../kernel/irq/devres.o
ifndef CONFIG_MMU_SUN3
obj-y += dma.o
ifndef CONFIG_MMU
obj-y += init_task.o
endif
-ifdef CONFIG_GENERIC_HARDIRQS
-obj-y += irq.o
-else
-obj-y += devres.o
-endif
extern u32 user_irqhandler_fixup[];
extern u16 user_irqvec_fixup[];
-#ifndef CONFIG_GENERIC_HARDIRQS
-/* table for system interrupt handlers */
-static struct irq_data *irq_list[NR_IRQS];
-static struct irq_chip *irq_chip[NR_IRQS];
-static int irq_depth[NR_IRQS];
-
-static inline int irq_set_chip(unsigned int irq, struct irq_chip *chip)
-{
- irq_chip[irq] = chip;
- return 0;
-}
-#define irq_set_chip_and_handler(irq, chip, dummy) irq_set_chip(irq, chip)
-#endif /* !CONFIG_GENERIC_HARDIRQS */
-
static int m68k_first_user_vec;
static struct irq_chip auto_irq_chip = {
.irq_shutdown = m68k_irq_shutdown,
};
-#ifndef CONFIG_GENERIC_HARDIRQS
-#define NUM_IRQ_NODES 100
-static struct irq_data nodes[NUM_IRQ_NODES];
-#endif /* !CONFIG_GENERIC_HARDIRQS */
-
/*
* void init_IRQ(void)
*
flush_icache();
}
-#ifdef CONFIG_GENERIC_HARDIRQS
-
/**
* m68k_setup_irq_controller
* @chip: irq chip which controls specified irq
}
}
-#else /* !CONFIG_GENERIC_HARDIRQS */
-
-/**
- * m68k_setup_irq_chip
- * @contr: irq controller which controls specified irq
- * @irq: first irq to be managed by the controller
- *
- * Change the controller for the specified range of irq, which will be used to
- * manage these irq. auto/user irq already have a default controller, which can
- * be changed as well, but the controller probably should use m68k_irq_startup/
- * m68k_irq_shutdown.
- */
-void m68k_setup_irq_chip(struct irq_chip *contr, unsigned int irq,
- unsigned int cnt)
-{
- int i;
-
- for (i = 0; i < cnt; i++)
- irq_set_chip(irq + i, contr);
-}
-
-struct irq_data *new_irq_node(void)
-{
- struct irq_data *node;
- short i;
-
- for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) {
- if (!node->handler) {
- memset(node, 0, sizeof(*node));
- return node;
- }
- }
-
- printk ("new_irq_node: out of nodes\n");
- return NULL;
-}
-
-static int m68k_setup_irq(unsigned int irq, struct irq_data *node)
-{
- struct irq_chip *contr;
- struct irq_data **prev;
- unsigned long flags;
-
- if (irq >= NR_IRQS || !(contr = irq_chip[irq])) {
- printk("%s: Incorrect IRQ %d from %s\n",
- __func__, irq, node->devname);
- return -ENXIO;
- }
-
- local_irq_save(flags);
-
- prev = irq_list + irq;
- if (*prev) {
- /* Can't share interrupts unless both agree to */
- if (!((*prev)->flags & node->flags & IRQF_SHARED)) {
- local_irq_restore(flags);
- return -EBUSY;
- }
- while (*prev)
- prev = &(*prev)->next;
- }
-
- if (!irq_list[irq]) {
- if (contr->irq_startup)
- contr->irq_startup(node);
- else
- contr->irq_enable(node);
- }
- node->next = NULL;
- *prev = node;
-
- local_irq_restore(flags);
-
- return 0;
-}
-
-int request_irq(unsigned int irq,
- irq_handler_t handler,
- unsigned long flags, const char *devname, void *dev_id)
-{
- struct irq_data *node;
- int res;
-
- node = new_irq_node();
- if (!node)
- return -ENOMEM;
-
- node->irq = irq;
- node->handler = handler;
- node->flags = flags;
- node->dev_id = dev_id;
- node->devname = devname;
-
- res = m68k_setup_irq(irq, node);
- if (res)
- node->handler = NULL;
-
- return res;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-void free_irq(unsigned int irq, void *dev_id)
-{
- struct irq_chip *contr;
- struct irq_data **p, *node;
- unsigned long flags;
-
- if (irq >= NR_IRQS || !(contr = irq_chip[irq])) {
- printk("%s: Incorrect IRQ %d\n", __func__, irq);
- return;
- }
-
- local_irq_save(flags);
-
- p = irq_list + irq;
- while ((node = *p)) {
- if (node->dev_id == dev_id)
- break;
- p = &node->next;
- }
-
- if (node) {
- *p = node->next;
- node->handler = NULL;
- } else
- printk("%s: Removing probably wrong IRQ %d\n",
- __func__, irq);
-
- if (!irq_list[irq]) {
- if (contr->irq_shutdown)
- contr->irq_shutdown(node);
- else
- contr->irq_disable(node);
- }
-
- local_irq_restore(flags);
-}
-
-EXPORT_SYMBOL(free_irq);
-
-void enable_irq(unsigned int irq)
-{
- struct irq_chip *contr;
- unsigned long flags;
-
- if (irq >= NR_IRQS || !(contr = irq_chip[irq])) {
- printk("%s: Incorrect IRQ %d\n",
- __func__, irq);
- return;
- }
-
- local_irq_save(flags);
- if (irq_depth[irq]) {
- if (!--irq_depth[irq]) {
- if (contr->irq_enable)
- contr->irq_enable(irq_list[irq]);
- }
- } else
- WARN_ON(1);
- local_irq_restore(flags);
-}
-
-EXPORT_SYMBOL(enable_irq);
-
-void disable_irq(unsigned int irq)
-{
- struct irq_chip *contr;
- unsigned long flags;
-
- if (irq >= NR_IRQS || !(contr = irq_chip[irq])) {
- printk("%s: Incorrect IRQ %d\n",
- __func__, irq);
- return;
- }
-
- local_irq_save(flags);
- if (!irq_depth[irq]++) {
- if (contr->irq_disable)
- contr->irq_disable(irq_list[irq]);
- }
- local_irq_restore(flags);
-}
-
-EXPORT_SYMBOL(disable_irq);
-
-void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq")));
-
-EXPORT_SYMBOL(disable_irq_nosync);
-
-#endif /* !CONFIG_GENERIC_HARDIRQS */
-
unsigned int m68k_irq_startup_irq(unsigned int irq)
{
if (irq <= IRQ_AUTO_7)
}
-#ifndef CONFIG_GENERIC_HARDIRQS
-
-/*
- * Do we need these probe functions on the m68k?
- *
- * ... may be useful with ISA devices
- */
-unsigned long probe_irq_on (void)
-{
-#ifdef CONFIG_Q40
- if (MACH_IS_Q40)
- return q40_probe_irq_on();
-#endif
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_on);
-
-int probe_irq_off (unsigned long irqs)
-{
-#ifdef CONFIG_Q40
- if (MACH_IS_Q40)
- return q40_probe_irq_off(irqs);
-#endif
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_off);
-#endif /* CONFIG_GENERIC_HARDIRQS */
-
unsigned int irq_canonicalize(unsigned int irq)
{
#ifdef CONFIG_Q40
EXPORT_SYMBOL(irq_canonicalize);
-#ifndef CONFIG_GENERIC_HARDIRQS
-void generic_handle_irq(unsigned int irq)
-{
- struct irq_data *node;
- kstat_cpu(0).irqs[irq]++;
- node = irq_list[irq];
- do {
- node->handler(irq, node->dev_id);
- node = node->next;
- } while (node);
-}
-
-asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
-{
- struct pt_regs *old_regs;
- old_regs = set_irq_regs(regs);
- generic_handle_irq(irq);
- set_irq_regs(old_regs);
-}
-
-asmlinkage void handle_badint(struct pt_regs *regs)
-{
- kstat_cpu(0).irqs[0]++;
- printk("unexpected interrupt from %u\n", regs->vector);
-}
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- struct irq_chip *contr;
- struct irq_data *node;
- int i = *(loff_t *) v;
-
- /* autovector interrupts */
- if (irq_list[i]) {
- contr = irq_chip[i];
- node = irq_list[i];
- seq_printf(p, "%-8s %3u: %10u %s", contr->name, i, kstat_cpu(0).irqs[i], node->devname);
- while ((node = node->next))
- seq_printf(p, ", %s", node->devname);
- seq_puts(p, "\n");
- }
- return 0;
-}
-
-#ifdef CONFIG_PROC_FS
-void init_irq_proc(void)
-{
- /* Insert /proc/irq driver here */
-}
-#endif
-
-#else /* CONFIG_GENERIC_HARDIRQS */
asmlinkage void handle_badint(struct pt_regs *regs)
{
atomic_inc(&irq_err_count);
pr_warn("unexpected interrupt from %u\n", regs->vector);
}
-
-#endif /* CONFIG_GENERIC_HARDIRQS */
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#endif
#include <asm/traps.h>
#include <asm/bootinfo.h>
* Baboon interrupt handler. This works a lot like a VIA.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
static void baboon_irq(unsigned int irq, struct irq_desc *desc)
{
int irq_bit, irq_num;
baboon->mb_ifr &= ~events;
#endif
}
-#else
-static irqreturn_t baboon_irq(int irq, void *dev_id)
-{
- int irq_bit, irq_num;
- unsigned char events;
-
-#ifdef DEBUG_IRQS
- printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X\n",
- (uint) baboon->mb_control, (uint) baboon->mb_ifr,
- (uint) baboon->mb_status);
-#endif
-
- if (!(events = baboon->mb_ifr & 0x07))
- return IRQ_NONE;
-
- irq_num = IRQ_BABOON_0;
- irq_bit = 1;
- do {
- if (events & irq_bit) {
- baboon->mb_ifr &= ~irq_bit;
- generic_handle_irq(irq_num);
- }
- irq_bit <<= 1;
- irq_num++;
- } while(events >= irq_bit);
-#if 0
- if (baboon->mb_ifr & 0x02) macide_ack_intr(NULL);
- /* for now we need to smash all interrupts */
- baboon->mb_ifr &= ~events;
-#endif
- return IRQ_HANDLED;
-}
-#endif
/*
* Register the Baboon interrupt dispatcher on nubus slot $C.
void __init baboon_register_interrupts(void)
{
baboon_disabled = 0;
-#ifdef CONFIG_GENERIC_HARDIRQS
irq_set_chained_handler(IRQ_NUBUS_C, baboon_irq);
-#else
- if (request_irq(IRQ_NUBUS_C, baboon_irq, 0, "baboon", (void *)baboon))
- pr_err("Couldn't register baboon interrupt\n");
-#endif
}
/*
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#endif
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
int oss_present;
volatile struct mac_oss *oss;
-#ifdef CONFIG_GENERIC_HARDIRQS
extern void via1_irq(unsigned int irq, struct irq_desc *desc);
-#else
-extern irqreturn_t via1_irq(int, void *);
-#endif
/*
* Initialize the OSS
* and SCSI; everything else is routed to its own autovector IRQ.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
static void oss_irq(unsigned int irq, struct irq_desc *desc)
{
int events;
/* FIXME: error check here? */
}
}
-#else
-static irqreturn_t oss_irq(int irq, void *dev_id)
-{
- int events;
-
- events = oss->irq_pending & (OSS_IP_SOUND|OSS_IP_SCSI);
- if (!events)
- return IRQ_NONE;
-
-#ifdef DEBUG_IRQS
- if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) {
- printk("oss_irq: irq %d events = 0x%04X\n", irq,
- (int) oss->irq_pending);
- }
-#endif
- /* FIXME: how do you clear a pending IRQ? */
-
- if (events & OSS_IP_SOUND) {
- oss->irq_pending &= ~OSS_IP_SOUND;
- /* FIXME: call sound handler */
- } else if (events & OSS_IP_SCSI) {
- oss->irq_pending &= ~OSS_IP_SCSI;
- generic_handle_irq(IRQ_MAC_SCSI);
- } else {
- /* FIXME: error check here? */
- }
- return IRQ_HANDLED;
-}
-#endif
/*
* Nubus IRQ handler, OSS style
* Unlike the VIA/RBV this is on its own autovector interrupt level.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc)
{
int events, irq_bit, i;
}
} while(events & (irq_bit - 1));
}
-#else
-static irqreturn_t oss_nubus_irq(int irq, void *dev_id)
-{
- int events, irq_bit, i;
-
- events = oss->irq_pending & OSS_IP_NUBUS;
- if (!events)
- return IRQ_NONE;
-
-#ifdef DEBUG_NUBUS_INT
- if (console_loglevel > 7) {
- printk("oss_nubus_irq: events = 0x%04X\n", events);
- }
-#endif
- /* There are only six slots on the OSS, not seven */
-
- i = 6;
- irq_bit = 0x40;
- do {
- --i;
- irq_bit >>= 1;
- if (events & irq_bit) {
- oss->irq_pending &= ~irq_bit;
- generic_handle_irq(NUBUS_SOURCE_BASE + i);
- }
- } while(events & (irq_bit - 1));
- return IRQ_HANDLED;
-}
-#endif
/*
* Register the OSS and NuBus interrupt dispatchers.
void __init oss_register_interrupts(void)
{
-#ifdef CONFIG_GENERIC_HARDIRQS
irq_set_chained_handler(OSS_IRQLEV_SCSI, oss_irq);
irq_set_chained_handler(OSS_IRQLEV_NUBUS, oss_nubus_irq);
irq_set_chained_handler(OSS_IRQLEV_SOUND, oss_irq);
irq_set_chained_handler(OSS_IRQLEV_VIA1, via1_irq);
-#else /* !CONFIG_GENERIC_HARDIRQS */
- if (request_irq(OSS_IRQLEV_SCSI, oss_irq, 0, "scsi", (void *)oss))
- pr_err("Couldn't register %s interrupt\n", "scsi");
- if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, 0, "nubus",
- (void *)oss))
- pr_err("Couldn't register %s interrupt\n", "nubus");
- if (request_irq(OSS_IRQLEV_SOUND, oss_irq, 0, "sound", (void *)oss))
- pr_err("Couldn't register %s interrupt\n", "sound");
- if (request_irq(OSS_IRQLEV_VIA1, via1_irq, 0, "via1", (void *)via1))
- pr_err("Couldn't register %s interrupt\n", "via1");
-#endif /* !CONFIG_GENERIC_HARDIRQS */
}
/*
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#endif
#include <asm/traps.h>
#include <asm/bootinfo.h>
* PSC interrupt handler. It's a lot like the VIA interrupt handler.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
static void psc_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned int offset = (unsigned int)irq_desc_get_handler_data(desc);
irq_bit <<= 1;
} while (events >= irq_bit);
}
-#else
-static irqreturn_t psc_irq(int irq, void *dev_id)
-{
- int pIFR = pIFRbase + ((int) dev_id);
- int pIER = pIERbase + ((int) dev_id);
- int irq_num;
- unsigned char irq_bit, events;
-
-#ifdef DEBUG_IRQS
- printk("psc_irq: irq %d pIFR = 0x%02X pIER = 0x%02X\n",
- irq, (int) psc_read_byte(pIFR), (int) psc_read_byte(pIER));
-#endif
-
- events = psc_read_byte(pIFR) & psc_read_byte(pIER) & 0xF;
- if (!events)
- return IRQ_NONE;
-
- irq_num = irq << 3;
- irq_bit = 1;
- do {
- if (events & irq_bit) {
- psc_write_byte(pIFR, irq_bit);
- generic_handle_irq(irq_num);
- }
- irq_num++;
- irq_bit <<= 1;
- } while (events >= irq_bit);
- return IRQ_HANDLED;
-}
-#endif
/*
* Register the PSC interrupt dispatchers for autovector interrupts 3-6.
void __init psc_register_interrupts(void)
{
-#ifdef CONFIG_GENERIC_HARDIRQS
irq_set_chained_handler(IRQ_AUTO_3, psc_irq);
irq_set_handler_data(IRQ_AUTO_3, (void *)0x30);
irq_set_chained_handler(IRQ_AUTO_4, psc_irq);
irq_set_handler_data(IRQ_AUTO_5, (void *)0x50);
irq_set_chained_handler(IRQ_AUTO_6, psc_irq);
irq_set_handler_data(IRQ_AUTO_6, (void *)0x60);
-#else /* !CONFIG_GENERIC_HARDIRQS */
- if (request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30))
- pr_err("Couldn't register psc%d interrupt\n", 3);
- if (request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40))
- pr_err("Couldn't register psc%d interrupt\n", 4);
- if (request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50))
- pr_err("Couldn't register psc%d interrupt\n", 5);
- if (request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60))
- pr_err("Couldn't register psc%d interrupt\n", 6);
-#endif /* !CONFIG_GENERIC_HARDIRQS */
}
void psc_irq_enable(int irq) {
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/module.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#endif
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
* via6522.c :-), disable/pending masks added.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
void via1_irq(unsigned int irq, struct irq_desc *desc)
{
int irq_num;
irq_bit <<= 1;
} while (events >= irq_bit);
}
-#else
-irqreturn_t via1_irq(int irq, void *dev_id)
-{
- int irq_num;
- unsigned char irq_bit, events;
-
- events = via1[vIFR] & via1[vIER] & 0x7F;
- if (!events)
- return IRQ_NONE;
-
- irq_num = VIA1_SOURCE_BASE;
- irq_bit = 1;
- do {
- if (events & irq_bit) {
- via1[vIFR] = irq_bit;
- generic_handle_irq(irq_num);
- }
- ++irq_num;
- irq_bit <<= 1;
- } while (events >= irq_bit);
- return IRQ_HANDLED;
-}
-
-irqreturn_t via2_irq(int irq, void *dev_id)
-{
- int irq_num;
- unsigned char irq_bit, events;
-
- events = via2[gIFR] & via2[gIER] & 0x7F;
- if (!events)
- return IRQ_NONE;
-
- irq_num = VIA2_SOURCE_BASE;
- irq_bit = 1;
- do {
- if (events & irq_bit) {
- via2[gIFR] = irq_bit | rbv_clear;
- generic_handle_irq(irq_num);
- }
- ++irq_num;
- irq_bit <<= 1;
- } while (events >= irq_bit);
- return IRQ_HANDLED;
-}
-#endif
/*
* Dispatch Nubus interrupts. We are called as a secondary dispatch by the
* VIA2 dispatcher as a fast interrupt handler.
*/
-#ifdef CONFIG_GENERIC_HARDIRQS
void via_nubus_irq(unsigned int irq, struct irq_desc *desc)
{
int slot_irq;
events &= ~via2[vDirA];
} while (events);
}
-#else
-irqreturn_t via_nubus_irq(int irq, void *dev_id)
-{
- int slot_irq;
- unsigned char slot_bit, events;
-
- events = ~via2[gBufA] & 0x7F;
- if (rbv_present)
- events &= via2[rSIER];
- else
- events &= ~via2[vDirA];
- if (!events)
- return IRQ_NONE;
-
- do {
- slot_irq = IRQ_NUBUS_F;
- slot_bit = 0x40;
- do {
- if (events & slot_bit) {
- events &= ~slot_bit;
- generic_handle_irq(slot_irq);
- }
- --slot_irq;
- slot_bit >>= 1;
- } while (events);
-
- /* clear the CA1 interrupt and make certain there's no more. */
- via2[gIFR] = 0x02 | rbv_clear;
- events = ~via2[gBufA] & 0x7F;
- if (rbv_present)
- events &= via2[rSIER];
- else
- events &= ~via2[vDirA];
- } while (events);
- return IRQ_HANDLED;
-}
-#endif
/*
* Register the interrupt dispatchers for VIA or RBV machines only.
void __init via_register_interrupts(void)
{
-#ifdef CONFIG_GENERIC_HARDIRQS
if (via_alt_mapping) {
/* software interrupt */
irq_set_chained_handler(IRQ_AUTO_1, via1_irq);
}
irq_set_chained_handler(IRQ_AUTO_2, via2_irq);
irq_set_chained_handler(IRQ_MAC_NUBUS, via_nubus_irq);
-#else
- if (via_alt_mapping) {
- if (request_irq(IRQ_AUTO_1, via1_irq, 0, "software",
- (void *)via1))
- pr_err("Couldn't register %s interrupt\n", "software");
- if (request_irq(IRQ_AUTO_6, via1_irq, 0, "via1", (void *)via1))
- pr_err("Couldn't register %s interrupt\n", "via1");
- } else {
- if (request_irq(IRQ_AUTO_1, via1_irq, 0, "via1", (void *)via1))
- pr_err("Couldn't register %s interrupt\n", "via1");
- }
- if (request_irq(IRQ_AUTO_2, via2_irq, 0, "via2", (void *)via2))
- pr_err("Couldn't register %s interrupt\n", "via2");
- if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 0, "nubus",
- (void *)via2))
- pr_err("Couldn't register %s interrupt\n", "nubus");
-#endif
}
void via_irq_enable(int irq) {
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
-#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
-#else
-#include <asm/irq.h>
-#endif
#include <asm/ptrace.h>
#include <asm/system.h>
printk("disable_irq nesting count %d\n",mext_disabled);
}
}
-
-#ifndef CONFIG_GENERIC_HARDIRQS
-unsigned long q40_probe_irq_on(void)
-{
- printk("irq probing not working - reconfigure the driver to avoid this\n");
- return -1;
-}
-int q40_probe_irq_off(unsigned long irqs)
-{
- return -1;
-}
-#endif
{
unsigned int cnt;
-#ifndef CONFIG_GENERIC_HARDIRQS
- *sun3_intreg |= (1 << irq);
-#endif
cnt = kstat_irqs_cpu(irq, 0);
if (!(cnt % 2000))
sun3_leds(led_pattern[cnt % 16000 / 2000]);
#ifdef CONFIG_SUN3
intersil_clear();
#endif
-#ifndef CONFIG_GENERIC_HARDIRQS
- *sun3_intreg |= (1 << irq);
-#endif
#ifdef CONFIG_SUN3
intersil_clear();
#endif
return IRQ_HANDLED;
}
-#ifndef CONFIG_GENERIC_HARDIRQS
-static void sun3_inthandle(unsigned int irq, struct pt_regs *fp)
-{
- *sun3_intreg &= ~(1 << irq);
-
- do_IRQ(irq, fp);
-}
-#endif
-
static void sun3_irq_enable(struct irq_data *data)
{
sun3_enable_irq(data->irq);
.irq_shutdown = m68k_irq_shutdown,
.irq_enable = sun3_irq_enable,
.irq_disable = sun3_irq_disable,
-#ifdef CONFIG_GENERIC_HARDIRQS
.irq_mask = sun3_irq_disable,
.irq_unmask = sun3_irq_enable,
-#endif
};
void __init sun3_init_IRQ(void)
{
*sun3_intreg = 1;
-#ifndef CONFIG_GENERIC_HARDIRQS
- m68k_setup_auto_interrupt(sun3_inthandle);
-#endif
m68k_setup_irq_controller(&sun3_irq_chip, handle_level_irq, IRQ_AUTO_1,
7);
m68k_setup_user_interrupt(VEC_USER, 128, NULL);
projects / platform / kernel / linux-rpi.git / commitdiff