diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 67 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_pseries.c | 46 |
2 files changed, 48 insertions, 65 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 70a9617cc6c0..00797e079f49 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -91,8 +91,6 @@ static int ibm_set_slot_reset; static int ibm_read_slot_reset_state; static int ibm_read_slot_reset_state2; static int ibm_slot_error_detail; -static int ibm_get_config_addr_info; -static int ibm_get_config_addr_info2; static int ibm_configure_bridge; static int ibm_configure_pe; @@ -1048,56 +1046,6 @@ void eeh_configure_bridge(struct pci_dn *pdn) } } -#define EEH_ENABLE 1 - -struct eeh_early_enable_info { - unsigned int buid_hi; - unsigned int buid_lo; -}; - -/** - * eeh_get_pe_addr - Retrieve PE address with given BDF address - * @config_addr: BDF address - * @info: BUID of the associated PHB - * - * There're 2 kinds of addresses existing in EEH core components: - * BDF address and PE address. Besides, there has dedicated platform - * dependent function call to retrieve the PE address according to - * the given BDF address. Further more, we prefer PE address on BDF - * address in EEH core components. - */ -static int eeh_get_pe_addr(int config_addr, - struct eeh_early_enable_info *info) -{ - unsigned int rets[3]; - int ret; - - /* Use latest config-addr token on power6 */ - if (ibm_get_config_addr_info2 != RTAS_UNKNOWN_SERVICE) { - /* Make sure we have a PE in hand */ - ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 1); - if (ret || (rets[0]==0)) - return 0; - - ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 0); - if (ret) - return 0; - return rets[0]; - } - - /* Use older config-addr token on power5 */ - if (ibm_get_config_addr_info != RTAS_UNKNOWN_SERVICE) { - ret = rtas_call(ibm_get_config_addr_info, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 0); - if (ret) - return 0; - return rets[0]; - } - return 0; -} - /** * eeh_early_enable - Early enable EEH on the indicated device * @dn: device node @@ -1110,7 +1058,6 @@ static int eeh_get_pe_addr(int config_addr, static void *eeh_early_enable(struct device_node *dn, void *data) { unsigned int rets[3]; - struct eeh_early_enable_info *info = data; int ret; const u32 *class_code = of_get_property(dn, "class-code", NULL); const u32 *vendor_id = of_get_property(dn, "vendor-id", NULL); @@ -1155,7 +1102,7 @@ static void *eeh_early_enable(struct device_node *dn, void *data) /* If the newer, better, ibm,get-config-addr-info is supported, * then use that instead. */ - pdn->eeh_pe_config_addr = eeh_get_pe_addr(pdn->eeh_config_addr, info); + pdn->eeh_pe_config_addr = eeh_ops->get_pe_addr(dn); /* Some older systems (Power4) allow the * ibm,set-eeh-option call to succeed even on nodes @@ -1264,7 +1211,6 @@ int __exit eeh_ops_unregister(const char *name) void __init eeh_init(void) { struct device_node *phb, *np; - struct eeh_early_enable_info info; int ret; /* call platform initialization function */ @@ -1289,8 +1235,6 @@ void __init eeh_init(void) ibm_read_slot_reset_state2 = rtas_token("ibm,read-slot-reset-state2"); ibm_read_slot_reset_state = rtas_token("ibm,read-slot-reset-state"); ibm_slot_error_detail = rtas_token("ibm,slot-error-detail"); - ibm_get_config_addr_info = rtas_token("ibm,get-config-addr-info"); - ibm_get_config_addr_info2 = rtas_token("ibm,get-config-addr-info2"); ibm_configure_bridge = rtas_token("ibm,configure-bridge"); ibm_configure_pe = rtas_token("ibm,configure-pe"); @@ -1313,9 +1257,7 @@ void __init eeh_init(void) if (buid == 0 || PCI_DN(phb) == NULL) continue; - info.buid_lo = BUID_LO(buid); - info.buid_hi = BUID_HI(buid); - traverse_pci_devices(phb, eeh_early_enable, &info); + traverse_pci_devices(phb, eeh_early_enable, NULL); } if (eeh_subsystem_enabled) @@ -1339,7 +1281,6 @@ void __init eeh_init(void) static void eeh_add_device_early(struct device_node *dn) { struct pci_controller *phb; - struct eeh_early_enable_info info; if (!dn || !PCI_DN(dn)) return; @@ -1349,9 +1290,7 @@ static void eeh_add_device_early(struct device_node *dn) if (NULL == phb || 0 == phb->buid) return; - info.buid_hi = BUID_HI(phb->buid); - info.buid_lo = BUID_LO(phb->buid); - eeh_early_enable(dn, &info); + eeh_early_enable(dn, NULL); } /** diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index c48a9e6ecdd6..2b9543a78236 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -176,7 +176,51 @@ static int pseries_eeh_set_option(struct device_node *dn, int option) */ static int pseries_eeh_get_pe_addr(struct device_node *dn) { - return 0; + struct pci_dn *pdn; + int ret = 0; + int rets[3]; + + pdn = PCI_DN(dn); + + if (ibm_get_config_addr_info2 != RTAS_UNKNOWN_SERVICE) { + /* + * First of all, we need to make sure there has one PE + * associated with the device. Otherwise, PE address is + * meaningless. + */ + ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, + pdn->eeh_config_addr, BUID_HI(pdn->phb->buid), + BUID_LO(pdn->phb->buid), 1); + if (ret || (rets[0] == 0)) + return 0; + + /* Retrieve the associated PE config address */ + ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, + pdn->eeh_config_addr, BUID_HI(pdn->phb->buid), + BUID_LO(pdn->phb->buid), 0); + if (ret) { + pr_warning("%s: Failed to get PE address for %s\n", + __func__, dn->full_name); + return 0; + } + + return rets[0]; + } + + if (ibm_get_config_addr_info != RTAS_UNKNOWN_SERVICE) { + ret = rtas_call(ibm_get_config_addr_info, 4, 2, rets, + pdn->eeh_config_addr, BUID_HI(pdn->phb->buid), + BUID_LO(pdn->phb->buid), 0); + if (ret) { + pr_warning("%s: Failed to get PE address for %s\n", + __func__, dn->full_name); + return 0; + } + + return rets[0]; + } + + return ret; } /** |