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    Subject[PATCHSET] PC-9800 subarch. support for 2.5.61 (3/26) mach-pc9800
    This is patchset to support NEC PC-9800 subarchitecture
    against 2.5.61 (3/26).

    Files under arch/i386/mach-pc9800 directory.
    For fix difference of cascade IRQ number and APM BIOS version BUG.

    diff -Nru linux-2.5.61/arch/i386/mach-pc9800/Makefile linux98-2.5.61/arch/i386/mach-pc9800/Makefile
    --- linux-2.5.61/arch/i386/mach-pc9800/Makefile 1970-01-01 09:00:00.000000000 +0900
    +++ linux98-2.5.61/arch/i386/mach-pc9800/Makefile 2003-02-16 17:19:03.000000000 +0900
    @@ -0,0 +1,7 @@
    +#
    +# Makefile for the linux kernel.
    +#
    +
    +EXTRA_CFLAGS += -I../kernel
    +
    +obj-y := setup.o topology.o
    diff -Nru linux-2.5.61/arch/i386/mach-pc9800/setup.c linux98-2.5.61/arch/i386/mach-pc9800/setup.c
    --- linux-2.5.61/arch/i386/mach-pc9800/setup.c 1970-01-01 09:00:00.000000000 +0900
    +++ linux98-2.5.61/arch/i386/mach-pc9800/setup.c 2003-02-16 17:19:03.000000000 +0900
    @@ -0,0 +1,117 @@
    +/*
    + * Machine specific setup for generic
    + */
    +
    +#include <linux/config.h>
    +#include <linux/mm.h>
    +#include <linux/smp.h>
    +#include <linux/init.h>
    +#include <linux/irq.h>
    +#include <linux/interrupt.h>
    +#include <linux/apm_bios.h>
    +#include <asm/setup.h>
    +#include <asm/arch_hooks.h>
    +
    +struct sys_desc_table_struct {
    + unsigned short length;
    + unsigned char table[0];
    +};
    +
    +/**
    + * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
    + *
    + * Description:
    + * Perform any necessary interrupt initialisation prior to setting up
    + * the "ordinary" interrupt call gates. For legacy reasons, the ISA
    + * interrupts should be initialised here if the machine emulates a PC
    + * in any way.
    + **/
    +void __init pre_intr_init_hook(void)
    +{
    + init_ISA_irqs();
    +}
    +
    +/*
    + * IRQ7 is cascade interrupt to second interrupt controller
    + */
    +static struct irqaction irq7 = { no_action, 0, 0, "cascade", NULL, NULL};
    +
    +/**
    + * intr_init_hook - post gate setup interrupt initialisation
    + *
    + * Description:
    + * Fill in any interrupts that may have been left out by the general
    + * init_IRQ() routine. interrupts having to do with the machine rather
    + * than the devices on the I/O bus (like APIC interrupts in intel MP
    + * systems) are started here.
    + **/
    +void __init intr_init_hook(void)
    +{
    +#ifdef CONFIG_X86_LOCAL_APIC
    + apic_intr_init();
    +#endif
    +
    + setup_irq(7, &irq7);
    +}
    +
    +/**
    + * pre_setup_arch_hook - hook called prior to any setup_arch() execution
    + *
    + * Description:
    + * generally used to activate any machine specific identification
    + * routines that may be needed before setup_arch() runs. On VISWS
    + * this is used to get the board revision and type.
    + **/
    +void __init pre_setup_arch_hook(void)
    +{
    + SYS_DESC_TABLE.length = 0;
    + MCA_bus = 0;
    + /* In PC-9800, APM BIOS version is written in BCD...?? */
    + APM_BIOS_INFO.version = (APM_BIOS_INFO.version & 0xff00)
    + | ((APM_BIOS_INFO.version & 0x00f0) >> 4);
    +}
    +
    +/**
    + * trap_init_hook - initialise system specific traps
    + *
    + * Description:
    + * Called as the final act of trap_init(). Used in VISWS to initialise
    + * the various board specific APIC traps.
    + **/
    +void __init trap_init_hook(void)
    +{
    +}
    +
    +static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, 0, "timer", NULL, NULL};
    +
    +/**
    + * time_init_hook - do any specific initialisations for the system timer.
    + *
    + * Description:
    + * Must plug the system timer interrupt source at HZ into the IRQ listed
    + * in irq_vectors.h:TIMER_IRQ
    + **/
    +void __init time_init_hook(void)
    +{
    + setup_irq(0, &irq0);
    +}
    +
    +#ifdef CONFIG_MCA
    +/**
    + * mca_nmi_hook - hook into MCA specific NMI chain
    + *
    + * Description:
    + * The MCA (Microchannel Arcitecture) has an NMI chain for NMI sources
    + * along the MCA bus. Use this to hook into that chain if you will need
    + * it.
    + **/
    +void __init mca_nmi_hook(void)
    +{
    + /* If I recall correctly, there's a whole bunch of other things that
    + * we can do to check for NMI problems, but that's all I know about
    + * at the moment.
    + */
    +
    + printk("NMI generated from unknown source!\n");
    +}
    +#endif
    diff -Nru linux-2.5.61/arch/i386/mach-pc9800/topology.c linux98-2.5.61/arch/i386/mach-pc9800/topology.c
    --- linux-2.5.61/arch/i386/mach-pc9800/topology.c 1970-01-01 09:00:00.000000000 +0900
    +++ linux98-2.5.61/arch/i386/mach-pc9800/topology.c 2003-02-16 17:19:03.000000000 +0900
    @@ -0,0 +1,68 @@
    +/*
    + * arch/i386/mach-generic/topology.c - Populate driverfs with topology information
    + *
    + * Written by: Matthew Dobson, IBM Corporation
    + * Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
    + *
    + * Copyright (C) 2002, IBM Corp.
    + *
    + * All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but
    + * WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
    + * NON INFRINGEMENT. See the GNU General Public License for more
    + * details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    + *
    + * Send feedback to <colpatch@us.ibm.com>
    + */
    +#include <linux/init.h>
    +#include <linux/smp.h>
    +#include <asm/cpu.h>
    +
    +struct i386_cpu cpu_devices[NR_CPUS];
    +
    +#ifdef CONFIG_NUMA
    +#include <linux/mmzone.h>
    +#include <asm/node.h>
    +#include <asm/memblk.h>
    +
    +struct i386_node node_devices[MAX_NUMNODES];
    +struct i386_memblk memblk_devices[MAX_NR_MEMBLKS];
    +
    +static int __init topology_init(void)
    +{
    + int i;
    +
    + for (i = 0; i < num_online_nodes(); i++)
    + arch_register_node(i);
    + for (i = 0; i < NR_CPUS; i++)
    + if (cpu_possible(i)) arch_register_cpu(i);
    + for (i = 0; i < num_online_memblks(); i++)
    + arch_register_memblk(i);
    + return 0;
    +}
    +
    +#else /* !CONFIG_NUMA */
    +
    +static int __init topology_init(void)
    +{
    + int i;
    +
    + for (i = 0; i < NR_CPUS; i++)
    + if (cpu_possible(i)) arch_register_cpu(i);
    + return 0;
    +}
    +
    +#endif /* CONFIG_NUMA */
    +
    +subsys_initcall(topology_init);
    -
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