LXR linux/arch/parisc/kernel/pa7300lc.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 *   linux/arch/parisc/kernel/pa7300lc.c
   4 *      - PA7300LC-specific functions   
   5 *
   6 *   Copyright (C) 2000 Philipp Rumpf */
   7
   8#include <linux/sched.h>
   9#include <linux/sched/debug.h>
  10#include <linux/smp.h>
  11#include <linux/kernel.h>
  12#include <asm/io.h>
  13#include <asm/ptrace.h>
  14#include <asm/machdep.h>
  15
  16/* CPU register indices */
  17
  18#define MIOC_STATUS     0xf040
  19#define MIOC_CONTROL    0xf080
  20#define MDERRADD        0xf0e0
  21#define DMAERR          0xf0e8
  22#define DIOERR          0xf0ec
  23#define HIDMAMEM        0xf0f4
  24
  25/* this returns the HPA of the CPU it was called on */
  26static u32 cpu_hpa(void)
  27{
  28        return 0xfffb0000;
  29}
  30
  31static void pa7300lc_lpmc(int code, struct pt_regs *regs)
  32{
  33        u32 hpa;
  34        printk(KERN_WARNING "LPMC on CPU %d\n", smp_processor_id());
  35
  36        show_regs(regs);
  37
  38        hpa = cpu_hpa();
  39        printk(KERN_WARNING
  40                "MIOC_CONTROL %08x\n" "MIOC_STATUS  %08x\n"
  41                "MDERRADD     %08x\n" "DMAERR       %08x\n"
  42                "DIOERR       %08x\n" "HIDMAMEM     %08x\n",
  43                gsc_readl(hpa+MIOC_CONTROL), gsc_readl(hpa+MIOC_STATUS),
  44                gsc_readl(hpa+MDERRADD), gsc_readl(hpa+DMAERR),
  45                gsc_readl(hpa+DIOERR), gsc_readl(hpa+HIDMAMEM));
  46}
  47
  48void pa7300lc_init(void)
  49{
  50        cpu_lpmc = pa7300lc_lpmc;
  51}
  52