#include <asm/ppc-pci.h>
#include <asm/rtas.h>
-#undef DEBUG
/** Overview:
* EEH, or "Extended Error Handling" is a PCI bridge technology for
static inline void __restore_bars (struct pci_dn *pdn)
{
int i;
+ u32 cmd;
if (NULL==pdn->phb) return;
for (i=4; i<10; i++) {
/* max latency, min grant, interrupt pin and line */
rtas_write_config(pdn, 15*4, 4, pdn->config_space[15]);
+
+ /* Restore PERR & SERR bits, some devices require it,
+ don't touch the other command bits */
+ rtas_read_config(pdn, PCI_COMMAND, 4, &cmd);
+ if (pdn->config_space[1] & PCI_COMMAND_PARITY)
+ cmd |= PCI_COMMAND_PARITY;
+ else
+ cmd &= ~PCI_COMMAND_PARITY;
+ if (pdn->config_space[1] & PCI_COMMAND_SERR)
+ cmd |= PCI_COMMAND_SERR;
+ else
+ cmd &= ~PCI_COMMAND_SERR;
+ rtas_write_config(pdn, PCI_COMMAND, 4, cmd);
}
/**
unsigned int rets[3];
struct eeh_early_enable_info *info = data;
int ret;
- const char *status = of_get_property(dn, "status", NULL);
const u32 *class_code = of_get_property(dn, "class-code", NULL);
const u32 *vendor_id = of_get_property(dn, "vendor-id", NULL);
const u32 *device_id = of_get_property(dn, "device-id", NULL);
pdn->eeh_freeze_count = 0;
pdn->eeh_false_positives = 0;
- if (status && strncmp(status, "ok", 2) != 0)
- return NULL; /* ignore devices with bad status */
+ if (!of_device_is_available(dn))
+ return NULL;
/* Ignore bad nodes. */
if (!class_code || !vendor_id || !device_id)
static int __init eeh_init_proc(void)
{
- struct proc_dir_entry *e;
-
- if (machine_is(pseries)) {
- e = create_proc_entry("ppc64/eeh", 0, NULL);
- if (e)
- e->proc_fops = &proc_eeh_operations;
- }
-
+ if (machine_is(pseries))
+ proc_create("ppc64/eeh", 0, NULL, &proc_eeh_operations);
return 0;
}
__initcall(eeh_init_proc);