diff options
| author | Linas Vepstas <linas@austin.ibm.com> | 2007-03-19 20:54:21 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-03-22 12:52:52 +0100 |
| commit | 147d6a37500348b6bda5738453d84c46678209cf (patch) | |
| tree | ccc101c3901dd915bdfe86e3feac659124b037b3 /arch/powerpc/platforms/pseries/eeh.c | |
| parent | [POWERPC] EEH: Tolerate high mmio (diff) | |
| download | linux-147d6a37500348b6bda5738453d84c46678209cf.tar.xz linux-147d6a37500348b6bda5738453d84c46678209cf.zip | |
[POWERPC] EEH: support ibm,get-config-addr-info2 RTAS call
Provide support for the new ibm,get-config-addr-info2 RTAS token,
whenever it is actually available.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 2d0a43f1efb4..44aae9193a90 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -83,6 +83,7 @@ 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; int eeh_subsystem_enabled; @@ -744,6 +745,38 @@ struct eeh_early_enable_info { unsigned int buid_lo; }; +static int 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; +} + /* Enable eeh for the given device node. */ static void *early_enable_eeh(struct device_node *dn, void *data) { @@ -810,15 +843,7 @@ static void *early_enable_eeh(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 = 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, - info->buid_hi, info->buid_lo, - 0); - if (ret == 0) - pdn->eeh_pe_config_addr = rets[0]; - } + pdn->eeh_pe_config_addr = get_pe_addr(pdn->eeh_config_addr, info); /* Some older systems (Power4) allow the * ibm,set-eeh-option call to succeed even on nodes @@ -889,6 +914,7 @@ void __init eeh_init(void) 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"); if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) |