patch-2.3.51 linux/include/asm-ia64/hw_irq.h

• Lines: 77
• Date: Fri Mar 10 15:24:02 2000
• Orig file: v2.3.50/linux/include/asm-ia64/hw_irq.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.50/linux/include/asm-ia64/hw_irq.h linux/include/asm-ia64/hw_irq.h
@@ -0,0 +1,76 @@
+#ifndef _ASM_IA64_HW_IRQ_H
+#define _ASM_IA64_HW_IRQ_H
+
+/*
+ * Copyright (C) 2000 Hewlett-Packard Co
+ * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#include <linux/config.h>
+
+#include <linux/types.h>
+
+#include <asm/ptrace.h>
+
+#define NR_ISA_IRQS	 16
+
+/*
+ * 0 special
+ *
+ * 1,3-14 are reserved from firmware
+ *
+ * 16-255 (vectored external interrupts) are available
+ *
+ * 15 spurious interrupt (see IVR)
+ *
+ * 16 lowest priority, 255 highest priority
+ *
+ * 15 classes of 16 interrupts each.
+ */
+#define IA64_MIN_VECTORED_IRQ	 16
+#define IA64_MAX_VECTORED_IRQ	255
+
+#define IA64_SPURIOUS_INT	0x0f
+
+#define IA64_MIN_VECTORED_IRQ	 16
+#define IA64_MAX_VECTORED_IRQ	255
+
+#define PERFMON_IRQ		0x28	/* performanc monitor interrupt vector */
+#define TIMER_IRQ		0xef	/* use highest-prio group 15 interrupt for timer */
+#define IPI_IRQ			0xfe	/* inter-processor interrupt vector */
+#define CMC_IRQ			0xff	/* correctable machine-check interrupt vector */
+
+/* IA64 inter-cpu interrupt related definitions */
+
+/* Delivery modes for inter-cpu interrupts */
+enum {
+        IA64_IPI_DM_INT =       0x0,    /* pend an external interrupt */
+        IA64_IPI_DM_PMI =       0x2,    /* pend a PMI */
+        IA64_IPI_DM_NMI =       0x4,    /* pend an NMI (vector 2) */
+        IA64_IPI_DM_INIT =      0x5,    /* pend an INIT interrupt */
+        IA64_IPI_DM_EXTINT =    0x7,    /* pend an 8259-compatible interrupt. */
+};
+
+#define IA64_BUS_ID(cpu)        (cpu >> 8)
+#define IA64_LOCAL_ID(cpu)      (cpu & 0xff)
+
+extern __u8 isa_irq_to_vector_map[16];
+#define isa_irq_to_vector(x)	isa_irq_to_vector_map[(x)]
+
+extern struct hw_interrupt_type irq_type_ia64_internal;	/* CPU-internal interrupt controller */
+
+extern void ipi_send (int cpu, int vector, int delivery_mode);
+
+#ifdef CONFIG_SMP
+extern void handle_IPI(int irq, void *dev_id, struct pt_regs *regs);
+
+static inline void
+hw_resend_irq (struct hw_interrupt_type *h, unsigned int i)
+{
+	send_IPI_self(i);
+}
+#else
+# define hw_resend_irq(h,i)
+#endif
+
+#endif /* _ASM_IA64_HW_IRQ_H */