119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/*
|
|
* IP20.c - IP20 specific routines for symmon
|
|
*
|
|
*/
|
|
#ident "symmon/IP20.c: $Revision: 1.13 $"
|
|
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/cpu.h>
|
|
#include <sys/sbd.h>
|
|
#include <fault.h>
|
|
#include <parser.h>
|
|
#include <saioctl.h>
|
|
#include "dbgmon.h"
|
|
#include "mp.h"
|
|
#include <libsc.h>
|
|
|
|
/*
|
|
* register descriptions
|
|
*/
|
|
extern struct reg_desc sr_desc[], cause_desc[];
|
|
extern struct reg_desc _cpu_parerr_desc[], _gio_parerr_desc[];
|
|
extern struct reg_desc _liointr0_desc[], _liointr1_desc[];
|
|
|
|
static struct reg_values except_values[] = {
|
|
{ EXCEPT_UTLB, "UTLB Miss" },
|
|
{ EXCEPT_XUT, "XTLB Miss" },
|
|
{ EXCEPT_NORM, "NORMAL" },
|
|
{ EXCEPT_BRKPT, "BREAKPOINT" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static struct reg_desc except_desc[] = {
|
|
/* mask shift name format values */
|
|
{ -1, 0, "vector",NULL, except_values },
|
|
{ 0, 0, NULL, NULL, NULL }
|
|
};
|
|
|
|
/*
|
|
* Start of symmon's stack for boot processor.
|
|
*/
|
|
int _dbgstack = SYMMON_STACK;
|
|
|
|
/*
|
|
* Platform-dependent command table.
|
|
*/
|
|
struct cmd_table pd_ctbl[] = {
|
|
{ 0, 0, "" }
|
|
};
|
|
|
|
/*
|
|
* Platform-dependent arbitrary name/value table.
|
|
*/
|
|
pd_name_table_t pd_name_table[] = {
|
|
{ 0, 0 }
|
|
};
|
|
|
|
/*
|
|
* symmon_fault -- display info pertinent to fault
|
|
*/
|
|
void
|
|
symmon_fault(void)
|
|
{
|
|
unsigned int parerr;
|
|
|
|
printf("\nSYMMON EXCEPTION: %r\n", private.dbg_exc, except_desc);
|
|
_show_inst((inst_t *)private.exc_stack[E_EPC]); /* try to call disassembler */
|
|
printf("Cause register: %llR\n", private.exc_stack[E_CAUSE], cause_desc);
|
|
printf("Status register: %llR\n", private.exc_stack[E_SR], sr_desc);
|
|
if ((private.dbg_exc == EXCEPT_UTLB) || (private.dbg_exc == EXCEPT_XUT))
|
|
goto printvaddr;
|
|
switch ((unsigned)(private.exc_stack[E_CAUSE] & CAUSE_EXCMASK)) {
|
|
case EXC_MOD: case EXC_RMISS: case EXC_WMISS:
|
|
case EXC_RADE: case EXC_WADE:
|
|
printvaddr:
|
|
printf("Bad Vaddress: 0x%llx\n", private.exc_stack[E_BADVADDR]);
|
|
break;
|
|
}
|
|
|
|
/* print parity and bus error info */
|
|
parerr = private.exc_stack[E_CPU_PARERR] & 0x1fff;
|
|
printf("Parity error register: %R\n", parerr, _cpu_parerr_desc );
|
|
/*
|
|
* Only print write bus errors if the client was enabled for them,
|
|
* otherwise we might swipe on what was intended for client
|
|
*/
|
|
if ((private.exc_stack[E_SR] & SR_IBIT8)
|
|
&& (private.exc_stack[E_CAUSE] & CAUSE_IP8)) {
|
|
if (parerr) {
|
|
if (parerr & CPU_ERR_STAT_RD_PAR == CPU_ERR_STAT_RD_PAR)
|
|
printf ("CPU parity error during read at 0x%lx\n",
|
|
private.exc_stack[E_CPUADDR]);
|
|
else if (parerr & CPU_ERR_STAT_PAR)
|
|
printf ("CPU parity error during write at 0x%lx\n",
|
|
private.exc_stack[E_CPUADDR]);
|
|
|
|
if (parerr & CPU_ERR_STAT_SYSAD_PAR)
|
|
printf ("SYSAD bus parity error\n");
|
|
if (parerr & CPU_ERR_STAT_SYSCMD_PAR)
|
|
printf ("SYSCMD fifo parity error\n");
|
|
|
|
if (parerr & CPU_ERR_STAT_ADDR)
|
|
printf("Write Bus Error Occurred\n");
|
|
}
|
|
}
|
|
|
|
/* print LIO registers */
|
|
printf("Local I/O interrupt register 0: 0x%llR\n",
|
|
private.exc_stack[E_LIOINTR0], _liointr0_desc);
|
|
printf("Local I/O interrupt register 1: 0x%llR\n",
|
|
private.exc_stack[E_LIOINTR1], _liointr1_desc);
|
|
}
|
|
|
|
int
|
|
cpu_probe(void)
|
|
{
|
|
return 0;
|
|
}
|