diff options
Diffstat (limited to 'arch/ppc/amiga/ints.c')
| -rw-r--r-- | arch/ppc/amiga/ints.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/arch/ppc/amiga/ints.c b/arch/ppc/amiga/ints.c deleted file mode 100644 index 083a17462190..000000000000 --- a/arch/ppc/amiga/ints.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Linux/m68k general interrupt handling code from arch/m68k/kernel/ints.c - * Needed to drive the m68k emulating IRQ hardware on the PowerUp boards. - */ - -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/seq_file.h> - -#include <asm/setup.h> -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/traps.h> -#include <asm/page.h> -#include <asm/machdep.h> - -/* table for system interrupt handlers */ -static irq_handler_t irq_list[SYS_IRQS]; - -static const char *default_names[SYS_IRQS] = { - "spurious int", "int1 handler", "int2 handler", "int3 handler", - "int4 handler", "int5 handler", "int6 handler", "int7 handler" -}; - -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; - -#define NUM_IRQ_NODES 100 -static irq_node_t nodes[NUM_IRQ_NODES]; - - -/* - * void init_IRQ(void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function should be called during kernel startup to initialize - * the IRQ handling routines. - */ - -__init -void m68k_init_IRQ(void) -{ - int i; - - for (i = 0; i < SYS_IRQS; i++) { - if (mach_default_handler) - irq_list[i].handler = (*mach_default_handler)[i]; - irq_list[i].flags = 0; - irq_list[i].dev_id = NULL; - irq_list[i].devname = default_names[i]; - } - - for (i = 0; i < NUM_IRQ_NODES; i++) - nodes[i].handler = NULL; - - mach_init_IRQ (); -} - -irq_node_t *new_irq_node(void) -{ - irq_node_t *node; - short i; - - for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) - if (!node->handler) - return node; - - printk ("new_irq_node: out of nodes\n"); - return NULL; -} - -int sys_request_irq(unsigned int irq, - void (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq < IRQ1 || irq > IRQ7) { - printk("%s: Incorrect IRQ %d from %s\n", - __FUNCTION__, irq, devname); - return -ENXIO; - } - -#if 0 - if (!(irq_list[irq].flags & IRQ_FLG_STD)) { - if (irq_list[irq].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_list[irq].devname); - return -EBUSY; - } - if (!(flags & IRQ_FLG_REPLACE)) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_list[irq].devname); - return -EBUSY; - } - } -#endif - - irq_list[irq].handler = handler; - irq_list[irq].flags = flags; - irq_list[irq].dev_id = dev_id; - irq_list[irq].devname = devname; - return 0; -} - -void sys_free_irq(unsigned int irq, void *dev_id) -{ - if (irq < IRQ1 || irq > IRQ7) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (irq_list[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_list[irq].devname); - - irq_list[irq].handler = (*mach_default_handler)[irq]; - irq_list[irq].flags = 0; - irq_list[irq].dev_id = NULL; - irq_list[irq].devname = default_names[irq]; -} - -asmlinkage void process_int(unsigned long vec, struct pt_regs *fp) -{ - if (vec >= VEC_INT1 && vec <= VEC_INT7 && !MACH_IS_BVME6000) { - vec -= VEC_SPUR; - kstat_cpu(0).irqs[vec]++; - irq_list[vec].handler(vec, irq_list[vec].dev_id, fp); - } else { - if (mach_process_int) - mach_process_int(vec, fp); - else - panic("Can't process interrupt vector %ld\n", vec); - return; - } -} - -int m68k_get_irq_list(struct seq_file *p, void *v) -{ - int i; - - /* autovector interrupts */ - if (mach_default_handler) { - for (i = 0; i < SYS_IRQS; i++) { - seq_printf(p, "auto %2d: %10u ", i, - i ? kstat_cpu(0).irqs[i] : num_spurious); - seq_puts(p, " "); - seq_printf(p, "%s\n", irq_list[i].devname); - } - } - - mach_get_irq_list(p, v); - return 0; -} |