#include <command.h>
#include <asm/processor.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#if defined(CONFIG_CMD_KGDB)
int (*debugger_exception_handler)(struct pt_regs *) = 0;
#endif
/* Returns 0 if exception not found and fixup otherwise. */
extern unsigned long search_exception_table(unsigned long);
-#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize)
+/*
+ * End of addressable memory. This may be less than the actual
+ * amount of memory on the system if we're unable to keep all
+ * the memory mapped in.
+ */
+extern ulong get_effective_memsize(void);
+#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize())
/*
* Trap & Exception support
void
print_backtrace(unsigned long *sp)
{
- DECLARE_GLOBAL_DATA_PTR;
-
int cnt = 0;
unsigned long i;
printf("Machine check in kernel mode.\n");
printf("Caused by (from msr): ");
printf("regs %p ", regs);
- switch (regs->msr & 0x000F0000) {
- case (0x80000000 >> 12):
+ switch ( regs->msr & 0x001F0000) {
+ case (0x80000000>>11):
+ printf("MSS error. MSSSR0: %08x\n", mfspr(SPRN_MSSSR0));
+ break;
+ case (0x80000000>>12):
printf("Machine check signal - probably due to mm fault\n"
"with mmu off\n");
break;
if (debugger_exception_handler && (*debugger_exception_handler) (regs))
return;
#endif
+ printf("UnknownException regs@%x\n", regs);
printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
regs->nip, regs->msr, regs->trap);
_exception(0, regs);