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