pa7300lc.c

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/*
 *   linux/arch/parisc/kernel/pa7300lc.c
 *  - PA7300LC-specific functions   
 *
 *   Copyright (C) 2000 Philipp Rumpf */

#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/ptrace.h>
#include <asm/machdep.h>

/* CPU register indices */

#define MIOC_STATUS 0xf040
#define MIOC_CONTROL    0xf080
#define MDERRADD    0xf0e0
#define DMAERR      0xf0e8
#define DIOERR      0xf0ec
#define HIDMAMEM    0xf0f4

/* this returns the HPA of the CPU it was called on */
static u32 cpu_hpa(void)
{
    return 0xfffb0000;
}

static void pa7300lc_lpmc(int code, struct pt_regs *regs)
{
    u32 hpa;
    printk(KERN_WARNING "LPMC on CPU %d\n", smp_processor_id());

    show_regs(regs);

    hpa = cpu_hpa();
    printk(KERN_WARNING
        "MIOC_CONTROL %08x\n" "MIOC_STATUS  %08x\n"
        "MDERRADD     %08x\n" "DMAERR       %08x\n"
        "DIOERR       %08x\n" "HIDMAMEM     %08x\n",
        gsc_readl(hpa+MIOC_CONTROL), gsc_readl(hpa+MIOC_STATUS),
        gsc_readl(hpa+MDERRADD), gsc_readl(hpa+DMAERR),
        gsc_readl(hpa+DIOERR), gsc_readl(hpa+HIDMAMEM));
}

void pa7300lc_init(void)
{
    cpu_lpmc = pa7300lc_lpmc;
}