static int
sysctl_machdep_led_display(SYSCTL_HANDLER_ARGS)
{
size_t buflen;
char buf[9];
int error;
if (req->newptr == NULL)
return (EINVAL);
if (cvmx_sysinfo_get()->led_display_base_addr == 0)
return (ENODEV);
/*
* Revision 1.x of the EBT3000 only supports 4 characters, but
* other devices support 8.
*/
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
cvmx_sysinfo_get()->board_rev_major == 1)
buflen = 4;
else
buflen = 8;
if (req->newlen > buflen)
return (E2BIG);
error = SYSCTL_IN(req, buf, req->newlen);
if (error != 0)
return (error);
buf[req->newlen] = '\0';
ebt3000_str_write(buf);
return (0);
}
static void
octeon_boot_params_init(register_t ptr)
{
octeon_boot_descriptor_t *app_desc_ptr;
cvmx_bootinfo_t *octeon_bootinfo;
if (ptr == 0 || ptr >= MAX_APP_DESC_ADDR) {
cvmx_safe_printf("app descriptor passed at invalid address %#jx\n",
(uintmax_t)ptr);
platform_reset();
}
app_desc_ptr = (octeon_boot_descriptor_t *)(intptr_t)ptr;
if (app_desc_ptr->desc_version < 6) {
cvmx_safe_printf("Your boot code is too old to be supported.\n");
platform_reset();
}
octeon_bootinfo = octeon_process_app_desc_ver_6(app_desc_ptr);
if (octeon_bootinfo == NULL) {
cvmx_safe_printf("Could not parse boot descriptor.\n");
platform_reset();
}
if (cvmx_sysinfo_get()->led_display_base_addr != 0) {
/*
* Revision 1.x of the EBT3000 only supports 4 characters, but
* other devices support 8.
*/
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
cvmx_sysinfo_get()->board_rev_major == 1)
ebt3000_str_write("FBSD");
else
ebt3000_str_write("FreeBSD!");
}
if (cvmx_sysinfo_get()->phy_mem_desc_addr == (uint64_t)0) {
cvmx_safe_printf("Your boot loader did not supply a memory descriptor.\n");
platform_reset();
}
cvmx_bootmem_init(cvmx_sysinfo_get()->phy_mem_desc_addr);
octeon_feature_init();
__cvmx_helper_cfg_init();
}
/**
* Default exception handler. Prints out the exception
* cause decode and all relevant registers.
*
* @param registers Registers at time of the exception
*/
static void cvmx_interrupt_default_exception_handler(uint64_t registers[32])
{
uint64_t trap_print_cause;
ebt3000_str_write("Trap");
cvmx_spinlock_lock(&cvmx_interrupt_default_lock);
safe_printf("******************************************************************\n");
safe_printf("Core %lu: Unhandled Exception. Cause register decodes to:\n", cvmx_get_core_num());
READ_COP0(trap_print_cause, COP0_CAUSE);
switch ((trap_print_cause >> 2) & 0x1f)
{
case 0x0:
safe_printf("Interrupt\n");
break;
case 0x1:
safe_printf("TLB Mod\n");
break;
case 0x2:
safe_printf("tlb load/fetch\n");
break;
case 0x3:
safe_printf("tlb store\n");
break;
case 0x4:
safe_printf("address exc, load/fetch\n");
break;
case 0x5:
safe_printf("address exc, store\n");
break;
case 0x6:
safe_printf("bus error, inst. fetch\n");
break;
case 0x7:
safe_printf("bus error, load/store\n");
break;
case 0x8:
safe_printf("syscall\n");
break;
case 0x9:
safe_printf("breakpoint \n");
break;
case 0xa:
safe_printf("reserved instruction\n");
break;
case 0xb:
safe_printf("cop unusable\n");
break;
case 0xc:
safe_printf("arithmetic overflow\n");
break;
case 0xd:
safe_printf("trap\n");
break;
case 0xf:
safe_printf("floating point exc\n");
break;
case 0x12:
safe_printf("cop2 exception\n");
break;
case 0x16:
safe_printf("mdmx unusable\n");
break;
case 0x17:
safe_printf("watch\n");
break;
case 0x18:
safe_printf("machine check\n");
break;
case 0x1e:
safe_printf("cache error\n");
break;
default:
safe_printf("Reserved exception cause.\n");
break;
}
safe_printf("******************************************************************\n");
cvmx_interrupt_dump_registers(registers);
safe_printf("******************************************************************\n");
cvmx_spinlock_unlock(&cvmx_interrupt_default_lock);
while (1)
{
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
asm volatile ("break 1");
else
asm volatile ("wait");
}
