patch-2.2.8 linux/arch/ppc/kernel/local_irq.h

• Lines: 46
• Date: Thu Apr 29 12:39:01 1999
• Orig file: v2.2.7/linux/arch/ppc/kernel/local_irq.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.2.7/linux/arch/ppc/kernel/local_irq.h linux/arch/ppc/kernel/local_irq.h
@@ -0,0 +1,45 @@
+
+#ifndef _PPC_KERNEL_LOCAL_IRQ_H
+#define _PPC_KERNEL_LOCAL_IRQ_H
+
+#include <linux/kernel_stat.h>
+#include <linux/interrupt.h>
+
+void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
+
+/* Structure describing interrupts */
+struct hw_interrupt_type {
+	const char * typename;
+	void (*startup)(unsigned int irq);
+	void (*shutdown)(unsigned int irq);
+	void (*handle)(unsigned int irq, struct pt_regs * regs);
+	void (*enable)(unsigned int irq);
+	void (*disable)(unsigned int irq);
+	void (*mask_and_ack)(unsigned int irq);
+	int irq_offset;
+};
+
+#define mask_irq(irq) ({if (irq_desc[irq].ctl && irq_desc[irq].ctl->disable) irq_desc[irq].ctl->disable(irq);})
+#define unmask_irq(irq) ({if (irq_desc[irq].ctl && irq_desc[irq].ctl->enable) irq_desc[irq].ctl->enable(irq);})
+#define mask_and_ack_irq(irq) ({if (irq_desc[irq].ctl && irq_desc[irq].ctl->mask_and_ack) irq_desc[irq].ctl->mask_and_ack(irq);})
+
+struct irqdesc {
+	struct irqaction *action;
+	struct hw_interrupt_type *ctl;
+};
+
+extern struct irqdesc irq_desc[NR_IRQS];
+
+
+#define NR_MASK_WORDS	((NR_IRQS + 31) / 32)
+
+extern int ppc_spurious_interrupts;
+extern int ppc_second_irq;
+extern struct irqaction *ppc_irq_action[NR_IRQS];
+extern unsigned int ppc_local_bh_count[NR_CPUS];
+extern unsigned int ppc_local_irq_count[NR_CPUS];
+extern unsigned int ppc_cached_irq_mask[NR_MASK_WORDS];
+extern unsigned int ppc_lost_interrupts[NR_MASK_WORDS];
+extern atomic_t ppc_n_lost_interrupts;
+
+#endif /* _PPC_KERNEL_LOCAL_IRQ_H */