patch-2.4.19 linux-2.4.19/arch/ia64/sn/sn1/irq.c

• Lines: 184
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/arch/ia64/sn/sn1/irq.c
• Orig date: Thu Apr 5 12:51:47 2001

diff -urN linux-2.4.18/arch/ia64/sn/sn1/irq.c linux-2.4.19/arch/ia64/sn/sn1/irq.c
@@ -1,183 +0,0 @@
-/*
- * Platform dependent support for SGI SN1
- *
- * Copyright (C) 2000   Silicon Graphics
- * Copyright (C) 2000   Jack Steiner (steiner@sgi.com)
- * Copyright (C) 2000   Alan Mayer (ajm@sgi.com)
- * Copyright (C) 2000   Kanoj Sarcar (kanoj@sgi.com)
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <asm/current.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/sn/sgi.h>
-#include <asm/sn/iograph.h>
-#include <asm/sn/invent.h>
-#include <linux/devfs_fs_kernel.h>
-#include <asm/sn/hcl.h>
-#include <asm/sn/types.h>
-#include <asm/sn/pci/bridge.h>
-#include <asm/sn/pci/pciio.h>
-#include <asm/sn/pci/pciio_private.h>
-#include <asm/sn/sn_cpuid.h>
-#include <asm/sn/sn1/bedrock.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/sn1/addrs.h>
-#include <asm/sn/iobus.h>
-#include <asm/sn/sn1/arch.h>
-#include <asm/sn/synergy.h>
-
-#define IRQ_BIT_OFFSET 64
-
-int bit_pos_to_irq(int bit)
-{
-	if (bit > 118)
-		bit = 118;
-	return (bit + IRQ_BIT_OFFSET);
-}
-
-static inline int irq_to_bit_pos(int irq)
-{
-	int bit = irq - IRQ_BIT_OFFSET;
-
-	if (bit > 63)
-		bit -= 64;
-	return bit;
-}
-
-static unsigned int
-sn1_startup_irq(unsigned int irq)
-{
-        return(0);
-}
-
-static void
-sn1_shutdown_irq(unsigned int irq)
-{
-}
-
-static void
-sn1_disable_irq(unsigned int irq)
-{
-}
-
-static void
-sn1_enable_irq(unsigned int irq)
-{
-}
-
-static void
-sn1_ack_irq(unsigned int irq)
-{
-}
-
-static void
-sn1_end_irq(unsigned int irq)
-{
-	int bit;
-
-	bit = irq_to_bit_pos(irq);
-	LOCAL_HUB_CLR_INTR(bit);
-}
-
-static void
-sn1_set_affinity_irq(unsigned int irq, unsigned long mask)
-{
-}
-
-struct hw_interrupt_type irq_type_sn1 = {
-        "sn1_irq",
-        sn1_startup_irq,
-        sn1_shutdown_irq,
-        sn1_enable_irq,
-        sn1_disable_irq,
-        sn1_ack_irq,
-        sn1_end_irq,
-        sn1_set_affinity_irq
-};
-
-
-void
-sn1_irq_init (void)
-{
-	int i;
-
-	for (i = 0; i <= NR_IRQS; ++i) {
-		if (idesc_from_vector(i)->handler == &no_irq_type) {
-			idesc_from_vector(i)->handler = &irq_type_sn1;
-		}
-	}
-}
-
-
-
-#if !defined(CONFIG_IA64_SGI_SN1)
-void
-sn1_pci_fixup(int arg)
-{
-}
-#endif
-
-#ifdef CONFIG_PERCPU_IRQ
-
-extern irq_desc_t irq_descX[NR_IRQS];
-irq_desc_t *irq_desc_ptr[NR_CPUS] = { irq_descX };
-
-/*
- * Each slave AP allocates its own irq table.
- */
-int __init cpu_irq_init(void)
-{
-	irq_desc_ptr[smp_processor_id()] = (irq_desc_t *)kmalloc(sizeof(irq_descX), GFP_KERNEL);
-	if (irq_desc_ptr[smp_processor_id()] == 0)
-		return(-1);
-	memcpy(irq_desc_ptr[smp_processor_id()], irq_desc_ptr[0], 
-							sizeof(irq_descX));
-	return(0);
-}
-
-/*
- * This can also allocate the irq tables for the other cpus, specifically
- * on their nodes.
- */
-int __init master_irq_init(void)
-{
-	return(0);
-}
-
-/*
- * The input is an ivt level.
- */
-irq_desc_t *idesc_from_vector(unsigned int ivnum)
-{
-	return(irq_desc_ptr[smp_processor_id()] + ivnum);
-}
-
-/*
- * The input is a "soft" level, that we encoded in.
- */
-irq_desc_t *idesc_from_irq(unsigned int irq)
-{
-	return(irq_desc_ptr[irq >> 8] + (irq & 0xff));
-}
-
-unsigned int ivector_from_irq(unsigned int irq)
-{
-	return(irq & 0xff);
-}
-
-/*
- * This should return the Linux irq # for the i/p vector on the
- * i/p cpu. We currently do not track this.
- */
-unsigned int irq_from_cpuvector(int cpunum, unsigned int vector)
-{
-	return (vector);
-}
-
-#endif /* CONFIG_PERCPU_IRQ */