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-rw-r--r--arch/m68knommu/platform/68328/ints.c130
1 files changed, 21 insertions, 109 deletions
diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c
index 3de6e337554..72e56d554f4 100644
--- a/arch/m68knommu/platform/68328/ints.c
+++ b/arch/m68knommu/platform/68328/ints.c
@@ -9,21 +9,14 @@
* Copyright 1999 D. Jeff Dionne <jeff@rt-control.com>
*/
-#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/errno.h>
+#include <linux/init.h>
#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/irqnode.h>
+#include <linux/irq.h>
#include <asm/traps.h>
#include <asm/io.h>
#include <asm/machdep.h>
-#include <asm/setup.h>
#if defined(CONFIG_M68328)
#include <asm/MC68328.h>
@@ -79,16 +72,12 @@ extern e_vector *_ramvec;
/* The number of spurious interrupts */
volatile unsigned int num_spurious;
-unsigned int local_irq_count[NR_CPUS];
-
-/* irq node variables for the 32 (potential) on chip sources */
-static irq_node_t int_irq_list[NR_IRQS];
/*
* This function should be called during kernel startup to initialize
- * the IRQ handling routines.
+ * the machine vector table.
*/
-void init_IRQ(void)
+void __init init_vectors(void)
{
int i;
@@ -108,96 +97,10 @@ void init_IRQ(void)
IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */
- /* initialize handlers */
- for (i = 0; i < NR_IRQS; i++) {
- int_irq_list[i].handler = bad_interrupt;
- int_irq_list[i].flags = IRQ_FLG_STD;
- int_irq_list[i].dev_id = NULL;
- int_irq_list[i].devname = NULL;
- }
-
/* turn off all interrupts */
IMR = ~0;
}
-int request_irq(
- unsigned int irq,
- irq_handler_t handler,
- unsigned long flags,
- const char *devname,
- void *dev_id)
-{
- if (irq >= NR_IRQS) {
- printk (KERN_ERR "%s: Unknown IRQ %d from %s\n", __FUNCTION__, irq, devname);
- return -ENXIO;
- }
-
- if (!(int_irq_list[irq].flags & IRQ_FLG_STD)) {
- if (int_irq_list[irq].flags & IRQ_FLG_LOCK) {
- printk(KERN_ERR "%s: IRQ %d from %s is not replaceable\n",
- __FUNCTION__, irq, int_irq_list[irq].devname);
- return -EBUSY;
- }
- if (flags & IRQ_FLG_REPLACE) {
- printk(KERN_ERR "%s: %s can't replace IRQ %d from %s\n",
- __FUNCTION__, devname, irq, int_irq_list[irq].devname);
- return -EBUSY;
- }
- }
-
- int_irq_list[irq].handler = handler;
- int_irq_list[irq].flags = flags;
- int_irq_list[irq].dev_id = dev_id;
- int_irq_list[irq].devname = devname;
-
- IMR &= ~(1<<irq);
-
- return 0;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-void free_irq(unsigned int irq, void *dev_id)
-{
- if (irq >= NR_IRQS) {
- printk (KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq);
- return;
- }
-
- if (int_irq_list[irq].dev_id != dev_id)
- printk(KERN_INFO "%s: removing probably wrong IRQ %d from %s\n",
- __FUNCTION__, irq, int_irq_list[irq].devname);
-
- int_irq_list[irq].handler = bad_interrupt;
- int_irq_list[irq].flags = IRQ_FLG_STD;
- int_irq_list[irq].dev_id = NULL;
- int_irq_list[irq].devname = NULL;
-
- IMR |= 1<<irq;
-}
-
-EXPORT_SYMBOL(free_irq);
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v;
-
- if (i < NR_IRQS) {
- if (int_irq_list[i].devname) {
- seq_printf(p, "%3d: %10u ", i, kstat_cpu(0).irqs[i]);
- if (int_irq_list[i].flags & IRQ_FLG_LOCK)
- seq_printf(p, "L ");
- else
- seq_printf(p, " ");
- seq_printf(p, "%s\n", int_irq_list[i].devname);
- }
- }
- if (i == NR_IRQS)
- seq_printf(p, " : %10u spurious\n", num_spurious);
-
- return 0;
-}
-
/* The 68k family did not have a good way to determine the source
* of interrupts until later in the family. The EC000 core does
* not provide the vector number on the stack, we vector everything
@@ -255,14 +158,23 @@ void process_int(int vec, struct pt_regs *fp)
irq++;
}
- kstat_cpu(0).irqs[irq]++;
-
- if (int_irq_list[irq].handler) {
- int_irq_list[irq].handler(irq, int_irq_list[irq].dev_id, fp);
- } else {
- printk(KERN_ERR "unregistered interrupt %d!\nTurning it off in the IMR...\n", irq);
- IMR |= mask;
- }
+ do_IRQ(irq, fp);
pend &= ~mask;
}
}
+
+void enable_vector(unsigned int irq)
+{
+ IMR &= ~(1<<irq);
+}
+
+void disable_vector(unsigned int irq)
+{
+ IMR |= (1<<irq);
+}
+
+void ack_vector(unsigned int irq)
+{
+ /* Nothing needed */
+}
+