arch/parisc/kernel/pa7300lc.c

   1 /*
   2  *   linux/arch/parisc/kernel/pa7300lc.c
   3  *      - PA7300LC-specific functions
   4  *
   5  *   Copyright (C) 2000 Philipp Rumpf */
   6
   7 #include <asm/gsc.h>
   8 #include <asm/ptrace.h>
   9 #include <asm/machdep.h>
  10 #include <linux/smp.h>
  11 #include <linux/kernel.h>
  12
  13 /* CPU register indices */
  14
  15 #define MIOC_STATUS     0xf040
  16 #define MIOC_CONTROL    0xf080
  17 #define MDERRADD        0xf0e0
  18 #define DMAERR          0xf0e8
  19 #define DIOERR          0xf0ec
  20 #define HIDMAMEM        0xf0f4
  21
  22 /* read CPU Diagnose register index */
  23 static u32 diag_read(int index)
  24 {
  25         return 0;
  26 }
  27
  28 /* this returns the HPA of the CPU it was called on */
  29 static u32 cpu_hpa(void)
  30 {
  31         return 0xfffb0000;
  32 }
  33
  34 static void pa7300lc_lpmc(int code, struct pt_regs *regs)
  35 {
  36         u32 hpa;
  37         printk(KERN_WARNING "LPMC on CPU %d\n", smp_processor_id());
  38
  39         show_regs(regs);
  40
  41         hpa = cpu_hpa();
  42         printk(KERN_WARNING
  43                 "MIOC_CONTROL %08x\n" "MIOC_STATUS  %08x\n"
  44                 "MDERRADD     %08x\n" "DMAERR       %08x\n"
  45                 "DIOERR       %08x\n" "HIDMAMEM     %08x\n",
  46                 gsc_readl(hpa+MIOC_CONTROL), gsc_readl(hpa+MIOC_STATUS),
  47                 gsc_readl(hpa+MDERRADD), gsc_readl(hpa+DMAERR),
  48                 gsc_readl(hpa+DIOERR), gsc_readl(hpa+HIDMAMEM));
  49 }
  50
  51 void pa7300lc_init(void)
  52 {
  53         cpu_lpmc = pa7300lc_lpmc;
  54 }