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-rw-r--r--arch/h8300/kernel/ints.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/arch/h8300/kernel/ints.c b/arch/h8300/kernel/ints.c
deleted file mode 100644
index 3e4f479271c..00000000000
--- a/arch/h8300/kernel/ints.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * linux/arch/h8300/kernel/ints.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Based on linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- *
- * Copyright 1996 Roman Zippel
- * 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/seq_file.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/random.h>
-#include <linux/bootmem.h>
-#include <linux/hardirq.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/traps.h>
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/errno.h>
-
-/*
- * This structure has only 4 elements for speed reasons
- */
-typedef struct irq_handler {
- irqreturn_t (*handler)(int, void *, struct pt_regs *);
- int flags;
- int count;
- void *dev_id;
- const char *devname;
-} irq_handler_t;
-
-static irq_handler_t *irq_list[NR_IRQS];
-static int use_kmalloc;
-
-extern unsigned long *interrupt_redirect_table;
-extern const int h8300_saved_vectors[];
-extern const unsigned long h8300_trap_table[];
-int h8300_enable_irq_pin(unsigned int irq);
-void h8300_disable_irq_pin(unsigned int irq);
-
-#define CPU_VECTOR ((unsigned long *)0x000000)
-#define ADDR_MASK (0xffffff)
-
-#if defined(CONFIG_RAMKERNEL)
-static unsigned long __init *get_vector_address(void)
-{
- unsigned long *rom_vector = CPU_VECTOR;
- unsigned long base,tmp;
- int vec_no;
-
- base = rom_vector[EXT_IRQ0] & ADDR_MASK;
-
- /* check romvector format */
- for (vec_no = EXT_IRQ1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) {
- if ((base+(vec_no - EXT_IRQ0)*4) != (rom_vector[vec_no] & ADDR_MASK))
- return NULL;
- }
-
- /* ramvector base address */
- base -= EXT_IRQ0*4;
-
- /* writerble check */
- tmp = ~(*(volatile unsigned long *)base);
- (*(volatile unsigned long *)base) = tmp;
- if ((*(volatile unsigned long *)base) != tmp)
- return NULL;
- return (unsigned long *)base;
-}
-#endif
-
-void __init init_IRQ(void)
-{
-#if defined(CONFIG_RAMKERNEL)
- int i;
- unsigned long *ramvec,*ramvec_p;
- const unsigned long *trap_entry;
- const int *saved_vector;
-
- ramvec = get_vector_address();
- if (ramvec == NULL)
- panic("interrupt vector serup failed.");
- else
- printk(KERN_INFO "virtual vector at 0x%08lx\n",(unsigned long)ramvec);
-
- /* create redirect table */
- ramvec_p = ramvec;
- trap_entry = h8300_trap_table;
- saved_vector = h8300_saved_vectors;
- for ( i = 0; i < NR_IRQS; i++) {
- if (i == *saved_vector) {
- ramvec_p++;
- saved_vector++;
- } else {
- if ( i < NR_TRAPS ) {
- if (*trap_entry)
- *ramvec_p = VECTOR(*trap_entry);
- ramvec_p++;
- trap_entry++;
- } else
- *ramvec_p++ = REDIRECT(interrupt_entry);
- }
- }
- interrupt_redirect_table = ramvec;
-#ifdef DUMP_VECTOR
- ramvec_p = ramvec;
- for (i = 0; i < NR_IRQS; i++) {
- if ((i % 8) == 0)
- printk(KERN_DEBUG "\n%p: ",ramvec_p);
- printk(KERN_DEBUG "%p ",*ramvec_p);
- ramvec_p++;
- }
- printk(KERN_DEBUG "\n");
-#endif
-#endif
-}
-
-int request_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long flags, const char *devname, void *dev_id)
-{
- irq_handler_t *irq_handle;
- if (irq < 0 || irq >= NR_IRQS) {
- printk(KERN_ERR "Incorrect IRQ %d from %s\n", irq, devname);
- return -EINVAL;
- }
-
- if (irq_list[irq] || (h8300_enable_irq_pin(irq) == -EBUSY))
- return -EBUSY;
-
- if (use_kmalloc)
- irq_handle = kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
- else {
- /* use bootmem allocater */
- irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
- irq_handle = (irq_handler_t *)((unsigned long)irq_handle | 0x80000000);
- }
-
- if (irq_handle == NULL)
- return -ENOMEM;
-
- irq_handle->handler = handler;
- irq_handle->flags = flags;
- irq_handle->count = 0;
- irq_handle->dev_id = dev_id;
- irq_handle->devname = devname;
- irq_list[irq] = irq_handle;
-
- if (irq_handle->flags & IRQF_SAMPLE_RANDOM)
- rand_initialize_irq(irq);
-
- enable_irq(irq);
- return 0;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-void free_irq(unsigned int irq, void *dev_id)
-{
- if (irq >= NR_IRQS)
- return;
-
- if (!irq_list[irq] || irq_list[irq]->dev_id != dev_id)
- printk(KERN_WARNING "Removing probably wrong IRQ %d from %s\n",
- irq, irq_list[irq]->devname);
- disable_irq(irq);
- h8300_disable_irq_pin(irq);
- if (((unsigned long)irq_list[irq] & 0x80000000) == 0) {
- kfree(irq_list[irq]);
- irq_list[irq] = NULL;
- }
-}
-
-EXPORT_SYMBOL(free_irq);
-
-/*
- * Do we need these probe functions on the m68k?
- */
-unsigned long probe_irq_on (void)
-{
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_on);
-
-int probe_irq_off (unsigned long irqs)
-{
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_off);
-
-void enable_irq(unsigned int irq)
-{
- if (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS))
- IER_REGS |= 1 << (irq - EXT_IRQ0);
-}
-
-void disable_irq(unsigned int irq)
-{
- if (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS))
- IER_REGS &= ~(1 << (irq - EXT_IRQ0));
-}
-
-asmlinkage void process_int(int irq, struct pt_regs *fp)
-{
- irq_enter();
- h8300_clear_isr(irq);
- if (irq >= NR_TRAPS && irq < NR_IRQS) {
- if (irq_list[irq]) {
- irq_list[irq]->handler(irq, irq_list[irq]->dev_id, fp);
- irq_list[irq]->count++;
- if (irq_list[irq]->flags & IRQF_SAMPLE_RANDOM)
- add_interrupt_randomness(irq);
- }
- } else {
- BUG();
- }
- irq_exit();
-}
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v;
-
- if ((i < NR_IRQS) && (irq_list[i]!=NULL)) {
- seq_printf(p, "%3d: %10u ",i,irq_list[i]->count);
- seq_printf(p, "%s\n", irq_list[i]->devname);
- }
-
- return 0;
-}
-
-void init_irq_proc(void)
-{
-}
-
-static int __init enable_kmalloc(void)
-{
- use_kmalloc = 1;
- return 0;
-}
-core_initcall(enable_kmalloc);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 23:21:27 +0000