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Diffstat (limited to 'arch/ppc64/kernel/eeh.c')
-rw-r--r--arch/ppc64/kernel/eeh.c86
1 files changed, 46 insertions, 40 deletions
diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c
index af5272fedad..ba93fd73122 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/ppc64/kernel/eeh.c
@@ -202,10 +202,9 @@ static void pci_addr_cache_print(struct pci_io_addr_cache *cache)
while (n) {
struct pci_io_addr_range *piar;
piar = rb_entry(n, struct pci_io_addr_range, rb_node);
- printk(KERN_DEBUG "PCI: %s addr range %d [%lx-%lx]: %s %s\n",
+ printk(KERN_DEBUG "PCI: %s addr range %d [%lx-%lx]: %s\n",
(piar->flags & IORESOURCE_IO) ? "i/o" : "mem", cnt,
- piar->addr_lo, piar->addr_hi, pci_name(piar->pcidev),
- pci_pretty_name(piar->pcidev));
+ piar->addr_lo, piar->addr_hi, pci_name(piar->pcidev));
cnt++;
n = rb_next(n);
}
@@ -255,22 +254,24 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
static void __pci_addr_cache_insert_device(struct pci_dev *dev)
{
struct device_node *dn;
+ struct pci_dn *pdn;
int i;
int inserted = 0;
dn = pci_device_to_OF_node(dev);
if (!dn) {
- printk(KERN_WARNING "PCI: no pci dn found for dev=%s %s\n",
- pci_name(dev), pci_pretty_name(dev));
+ printk(KERN_WARNING "PCI: no pci dn found for dev=%s\n",
+ pci_name(dev));
return;
}
/* Skip any devices for which EEH is not enabled. */
- if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) ||
- dn->eeh_mode & EEH_MODE_NOCHECK) {
+ pdn = dn->data;
+ if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
+ pdn->eeh_mode & EEH_MODE_NOCHECK) {
#ifdef DEBUG
- printk(KERN_INFO "PCI: skip building address cache for=%s %s\n",
- pci_name(dev), pci_pretty_name(dev));
+ printk(KERN_INFO "PCI: skip building address cache for=%s\n",
+ pci_name(dev));
#endif
return;
}
@@ -416,6 +417,7 @@ int eeh_unregister_notifier(struct notifier_block *nb)
static int read_slot_reset_state(struct device_node *dn, int rets[])
{
int token, outputs;
+ struct pci_dn *pdn = dn->data;
if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) {
token = ibm_read_slot_reset_state2;
@@ -425,8 +427,8 @@ static int read_slot_reset_state(struct device_node *dn, int rets[])
outputs = 3;
}
- return rtas_call(token, 3, outputs, rets, dn->eeh_config_addr,
- BUID_HI(dn->phb->buid), BUID_LO(dn->phb->buid));
+ return rtas_call(token, 3, outputs, rets, pdn->eeh_config_addr,
+ BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid));
}
/**
@@ -447,12 +449,12 @@ static void eeh_panic(struct pci_dev *dev, int reset_state)
* in light of potential corruption, we can use it here.
*/
if (panic_on_oops)
- panic("EEH: MMIO failure (%d) on device:%s %s\n", reset_state,
- pci_name(dev), pci_pretty_name(dev));
+ panic("EEH: MMIO failure (%d) on device:%s\n", reset_state,
+ pci_name(dev));
else {
__get_cpu_var(ignored_failures)++;
- printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s %s\n",
- reset_state, pci_name(dev), pci_pretty_name(dev));
+ printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s\n",
+ reset_state, pci_name(dev));
}
}
@@ -482,8 +484,8 @@ static void eeh_event_handler(void *dummy)
break;
printk(KERN_INFO "EEH: MMIO failure (%d), notifiying device "
- "%s %s\n", event->reset_state,
- pci_name(event->dev), pci_pretty_name(event->dev));
+ "%s\n", event->reset_state,
+ pci_name(event->dev));
atomic_set(&eeh_fail_count, 0);
notifier_call_chain (&eeh_notifier_chain,
@@ -535,6 +537,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
unsigned long flags;
int rc, reset_state;
struct eeh_event *event;
+ struct pci_dn *pdn;
__get_cpu_var(total_mmio_ffs)++;
@@ -543,14 +546,15 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
if (!dn)
return 0;
+ pdn = dn->data;
/* Access to IO BARs might get this far and still not want checking. */
- if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) ||
- dn->eeh_mode & EEH_MODE_NOCHECK) {
+ if (!pdn->eeh_capable || !(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
+ pdn->eeh_mode & EEH_MODE_NOCHECK) {
return 0;
}
- if (!dn->eeh_config_addr) {
+ if (!pdn->eeh_config_addr) {
return 0;
}
@@ -558,7 +562,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
* If we already have a pending isolation event for this
* slot, we know it's bad already, we don't need to check...
*/
- if (dn->eeh_mode & EEH_MODE_ISOLATED) {
+ if (pdn->eeh_mode & EEH_MODE_ISOLATED) {
atomic_inc(&eeh_fail_count);
if (atomic_read(&eeh_fail_count) >= EEH_MAX_FAILS) {
/* re-read the slot reset state */
@@ -583,7 +587,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
}
/* prevent repeated reports of this failure */
- dn->eeh_mode |= EEH_MODE_ISOLATED;
+ pdn->eeh_mode |= EEH_MODE_ISOLATED;
reset_state = rets[0];
@@ -591,9 +595,9 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
memset(slot_errbuf, 0, eeh_error_buf_size);
rc = rtas_call(ibm_slot_error_detail,
- 8, 1, NULL, dn->eeh_config_addr,
- BUID_HI(dn->phb->buid),
- BUID_LO(dn->phb->buid), NULL, 0,
+ 8, 1, NULL, pdn->eeh_config_addr,
+ BUID_HI(pdn->phb->buid),
+ BUID_LO(pdn->phb->buid), NULL, 0,
virt_to_phys(slot_errbuf),
eeh_error_buf_size,
1 /* Temporary Error */);
@@ -680,8 +684,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
u32 *regs;
int enable;
+ struct pci_dn *pdn = dn->data;
- dn->eeh_mode = 0;
+ pdn->eeh_mode = 0;
if (status && strcmp(status, "ok") != 0)
return NULL; /* ignore devices with bad status */
@@ -692,7 +697,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
/* There is nothing to check on PCI to ISA bridges */
if (dn->type && !strcmp(dn->type, "isa")) {
- dn->eeh_mode |= EEH_MODE_NOCHECK;
+ pdn->eeh_mode |= EEH_MODE_NOCHECK;
return NULL;
}
@@ -709,7 +714,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
enable = 0;
if (!enable)
- dn->eeh_mode |= EEH_MODE_NOCHECK;
+ pdn->eeh_mode |= EEH_MODE_NOCHECK;
/* Ok... see if this device supports EEH. Some do, some don't,
* and the only way to find out is to check each and every one. */
@@ -722,8 +727,8 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
EEH_ENABLE);
if (ret == 0) {
eeh_subsystem_enabled = 1;
- dn->eeh_mode |= EEH_MODE_SUPPORTED;
- dn->eeh_config_addr = regs[0];
+ pdn->eeh_mode |= EEH_MODE_SUPPORTED;
+ pdn->eeh_config_addr = regs[0];
#ifdef DEBUG
printk(KERN_DEBUG "EEH: %s: eeh enabled\n", dn->full_name);
#endif
@@ -731,10 +736,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
/* This device doesn't support EEH, but it may have an
* EEH parent, in which case we mark it as supported. */
- if (dn->parent && (dn->parent->eeh_mode & EEH_MODE_SUPPORTED)) {
+ if (dn->parent && dn->parent->data
+ && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) {
/* Parent supports EEH. */
- dn->eeh_mode |= EEH_MODE_SUPPORTED;
- dn->eeh_config_addr = dn->parent->eeh_config_addr;
+ pdn->eeh_mode |= EEH_MODE_SUPPORTED;
+ pdn->eeh_config_addr = PCI_DN(dn->parent)->eeh_config_addr;
return NULL;
}
}
@@ -791,11 +797,13 @@ void __init eeh_init(void)
for (phb = of_find_node_by_name(NULL, "pci"); phb;
phb = of_find_node_by_name(phb, "pci")) {
unsigned long buid;
+ struct pci_dn *pci;
buid = get_phb_buid(phb);
- if (buid == 0)
+ if (buid == 0 || phb->data == NULL)
continue;
+ pci = phb->data;
info.buid_lo = BUID_LO(buid);
info.buid_hi = BUID_HI(buid);
traverse_pci_devices(phb, early_enable_eeh, &info);
@@ -824,9 +832,9 @@ void eeh_add_device_early(struct device_node *dn)
struct pci_controller *phb;
struct eeh_early_enable_info info;
- if (!dn)
+ if (!dn || !dn->data)
return;
- phb = dn->phb;
+ phb = PCI_DN(dn)->phb;
if (NULL == phb || 0 == phb->buid) {
printk(KERN_WARNING "EEH: Expected buid but found none\n");
return;
@@ -851,8 +859,7 @@ void eeh_add_device_late(struct pci_dev *dev)
return;
#ifdef DEBUG
- printk(KERN_DEBUG "EEH: adding device %s %s\n", pci_name(dev),
- pci_pretty_name(dev));
+ printk(KERN_DEBUG "EEH: adding device %s\n", pci_name(dev));
#endif
pci_addr_cache_insert_device (dev);
@@ -873,8 +880,7 @@ void eeh_remove_device(struct pci_dev *dev)
/* Unregister the device with the EEH/PCI address search system */
#ifdef DEBUG
- printk(KERN_DEBUG "EEH: remove device %s %s\n", pci_name(dev),
- pci_pretty_name(dev));
+ printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev));
#endif
pci_addr_cache_remove_device(dev);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-17 07:07:46 +0000