113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
#define DEBUG
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/smp.h>
|
|
|
|
#include <asm/reg.h>
|
|
#include <asm/io.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/machdep.h>
|
|
|
|
#include "ras.h"
|
|
#include "cbe_regs.h"
|
|
|
|
|
|
static void dump_fir(int cpu)
|
|
{
|
|
struct cbe_pmd_regs __iomem *pregs = cbe_get_cpu_pmd_regs(cpu);
|
|
struct cbe_iic_regs __iomem *iregs = cbe_get_cpu_iic_regs(cpu);
|
|
|
|
if (pregs == NULL)
|
|
return;
|
|
|
|
/* Todo: do some nicer parsing of bits and based on them go down
|
|
* to other sub-units FIRs and not only IIC
|
|
*/
|
|
printk(KERN_ERR "Global Checkstop FIR : 0x%016lx\n",
|
|
in_be64(&pregs->checkstop_fir));
|
|
printk(KERN_ERR "Global Recoverable FIR : 0x%016lx\n",
|
|
in_be64(&pregs->checkstop_fir));
|
|
printk(KERN_ERR "Global MachineCheck FIR : 0x%016lx\n",
|
|
in_be64(&pregs->spec_att_mchk_fir));
|
|
|
|
if (iregs == NULL)
|
|
return;
|
|
printk(KERN_ERR "IOC FIR : 0x%016lx\n",
|
|
in_be64(&iregs->ioc_fir));
|
|
|
|
}
|
|
|
|
void cbe_system_error_exception(struct pt_regs *regs)
|
|
{
|
|
int cpu = smp_processor_id();
|
|
|
|
printk(KERN_ERR "System Error Interrupt on CPU %d !\n", cpu);
|
|
dump_fir(cpu);
|
|
dump_stack();
|
|
}
|
|
|
|
void cbe_maintenance_exception(struct pt_regs *regs)
|
|
{
|
|
int cpu = smp_processor_id();
|
|
|
|
/*
|
|
* Nothing implemented for the maintenance interrupt at this point
|
|
*/
|
|
|
|
printk(KERN_ERR "Unhandled Maintenance interrupt on CPU %d !\n", cpu);
|
|
dump_stack();
|
|
}
|
|
|
|
void cbe_thermal_exception(struct pt_regs *regs)
|
|
{
|
|
int cpu = smp_processor_id();
|
|
|
|
/*
|
|
* Nothing implemented for the thermal interrupt at this point
|
|
*/
|
|
|
|
printk(KERN_ERR "Unhandled Thermal interrupt on CPU %d !\n", cpu);
|
|
dump_stack();
|
|
}
|
|
|
|
static int cbe_machine_check_handler(struct pt_regs *regs)
|
|
{
|
|
int cpu = smp_processor_id();
|
|
|
|
printk(KERN_ERR "Machine Check Interrupt on CPU %d !\n", cpu);
|
|
dump_fir(cpu);
|
|
|
|
/* No recovery from this code now, lets continue */
|
|
return 0;
|
|
}
|
|
|
|
void __init cbe_ras_init(void)
|
|
{
|
|
unsigned long hid0;
|
|
|
|
/*
|
|
* Enable System Error & thermal interrupts and wakeup conditions
|
|
*/
|
|
|
|
hid0 = mfspr(SPRN_HID0);
|
|
hid0 |= HID0_CBE_THERM_INT_EN | HID0_CBE_THERM_WAKEUP |
|
|
HID0_CBE_SYSERR_INT_EN | HID0_CBE_SYSERR_WAKEUP;
|
|
mtspr(SPRN_HID0, hid0);
|
|
mb();
|
|
|
|
/*
|
|
* Install machine check handler. Leave setting of precise mode to
|
|
* what the firmware did for now
|
|
*/
|
|
ppc_md.machine_check_exception = cbe_machine_check_handler;
|
|
mb();
|
|
|
|
/*
|
|
* For now, we assume that IOC_FIR is already set to forward some
|
|
* error conditions to the System Error handler. If that is not true
|
|
* then it will have to be fixed up here.
|
|
*/
|
|
}
|