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