X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fpci%2Fhotplug%2Fsgi_hotplug.c;h=5d188c558386b73aadd714c21cc9e305483c0d44;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=8cb9abde736b43e40e6a72d6008838e60697c02d;hpb=16cf0ec7408f389279d413869e94c1a351392f97;p=linux-2.6.git diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index 8cb9abde7..5d188c558 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -13,21 +13,23 @@ #include #include #include +#include #include #include #include #include +#include #include #include #include #include #include +#include #include #include #include "../pci.h" -#include "pci_hotplug.h" MODULE_LICENSE("GPL"); MODULE_AUTHOR("SGI (prarit@sgi.com, dickie@sgi.com, habeck@sgi.com)"); @@ -102,8 +104,7 @@ static struct hotplug_slot_attribute sn_slot_path_attr = __ATTR_RO(path); static int sn_pci_slot_valid(struct pci_bus *pci_bus, int device) { struct pcibus_info *pcibus_info; - int bricktype; - int bus_num; + u16 busnum, segment, ioboard_type; pcibus_info = SN_PCIBUS_BUSSOFT_INFO(pci_bus); @@ -111,12 +112,14 @@ static int sn_pci_slot_valid(struct pci_bus *pci_bus, int device) if (!(pcibus_info->pbi_valid_devices & (1 << device))) return -EPERM; - bricktype = MODULE_GET_BTYPE(pcibus_info->pbi_moduleid); - bus_num = pcibus_info->pbi_buscommon.bs_persist_busnum & 0xf; + ioboard_type = sn_ioboard_to_pci_bus(pci_bus); + busnum = pcibus_info->pbi_buscommon.bs_persist_busnum; + segment = pci_domain_nr(pci_bus) & 0xf; /* Do not allow hotplug operations on base I/O cards */ - if ((bricktype == L1_BRICKTYPE_IX || bricktype == L1_BRICKTYPE_IA) && - (bus_num == 1 && device != 1)) + if ((ioboard_type == L1_BRICKTYPE_IX || + ioboard_type == L1_BRICKTYPE_IA) && + (segment == 1 && busnum == 0 && device != 1)) return -EPERM; return 1; @@ -125,23 +128,23 @@ static int sn_pci_slot_valid(struct pci_bus *pci_bus, int device) static int sn_pci_bus_valid(struct pci_bus *pci_bus) { struct pcibus_info *pcibus_info; - int asic_type; - int bricktype; - - pcibus_info = SN_PCIBUS_BUSSOFT_INFO(pci_bus); + u32 asic_type; + u16 ioboard_type; /* Don't register slots hanging off the TIOCA bus */ + pcibus_info = SN_PCIBUS_BUSSOFT_INFO(pci_bus); asic_type = pcibus_info->pbi_buscommon.bs_asic_type; if (asic_type == PCIIO_ASIC_TYPE_TIOCA) return -EPERM; /* Only register slots in I/O Bricks that support hotplug */ - bricktype = MODULE_GET_BTYPE(pcibus_info->pbi_moduleid); - switch (bricktype) { + ioboard_type = sn_ioboard_to_pci_bus(pci_bus); + switch (ioboard_type) { case L1_BRICKTYPE_IX: case L1_BRICKTYPE_PX: case L1_BRICKTYPE_IA: case L1_BRICKTYPE_PA: + case L1_BOARDTYPE_PCIX3SLOT: return 1; break; default: @@ -175,14 +178,11 @@ static int sn_hp_slot_private_alloc(struct hotplug_slot *bss_hotplug_slot, slot->pci_bus = pci_bus; sprintf(bss_hotplug_slot->name, "%04x:%02x:%02x", pci_domain_nr(pci_bus), - ((int)pcibus_info->pbi_buscommon.bs_persist_busnum) & 0xf, + ((u16)pcibus_info->pbi_buscommon.bs_persist_busnum), device + 1); - sprintf(slot->physical_path, "module_%c%c%c%c%.2d", - '0'+RACK_GET_CLASS(MODULE_GET_RACK(pcibus_info->pbi_moduleid)), - '0'+RACK_GET_GROUP(MODULE_GET_RACK(pcibus_info->pbi_moduleid)), - '0'+RACK_GET_NUM(MODULE_GET_RACK(pcibus_info->pbi_moduleid)), - MODULE_GET_BTCHAR(pcibus_info->pbi_moduleid), - MODULE_GET_BPOS(pcibus_info->pbi_moduleid)); + + sn_generate_path(pci_bus, slot->physical_path); + slot->hotplug_slot = bss_hotplug_slot; list_add(&slot->hp_list, &sn_hp_list); @@ -205,21 +205,6 @@ static struct hotplug_slot * sn_hp_destroy(void) return bss_hotplug_slot; } -static void sn_bus_alloc_data(struct pci_dev *dev) -{ - struct pci_bus *subordinate_bus; - struct pci_dev *child; - - sn_pci_fixup_slot(dev); - - /* Recursively sets up the sn_irq_info structs */ - if (dev->subordinate) { - subordinate_bus = dev->subordinate; - list_for_each_entry(child, &subordinate_bus->devices, bus_list) - sn_bus_alloc_data(child); - } -} - static void sn_bus_free_data(struct pci_dev *dev) { struct pci_bus *subordinate_bus; @@ -337,6 +322,11 @@ static int sn_slot_disable(struct hotplug_slot *bss_hotplug_slot, return rc; } +/* + * Power up and configure the slot via a SAL call to PROM. + * Scan slot (and any children), do any platform specific fixup, + * and find device driver. + */ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) { struct slot *slot = bss_hotplug_slot->private; @@ -345,6 +335,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) int func, num_funcs; int new_ppb = 0; int rc; + void pcibios_fixup_device_resources(struct pci_dev *); /* Serialize the Linux PCI infrastructure */ mutex_lock(&sn_hotplug_mutex); @@ -367,9 +358,6 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) return -ENODEV; } - sn_pci_controller_fixup(pci_domain_nr(slot->pci_bus), - slot->pci_bus->number, - slot->pci_bus); /* * Map SN resources for all functions on the card * to the Linux PCI interface and tell the drivers @@ -380,6 +368,13 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) PCI_DEVFN(slot->device_num + 1, PCI_FUNC(func))); if (dev) { + /* Need to do slot fixup on PPB before fixup of children + * (PPB's pcidev_info needs to be in pcidev_info list + * before child's SN_PCIDEV_INFO() call to setup + * pdi_host_pcidev_info). + */ + pcibios_fixup_device_resources(dev); + sn_pci_fixup_slot(dev); if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { unsigned char sec_bus; pci_read_config_byte(dev, PCI_SECONDARY_BUS, @@ -387,12 +382,8 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) new_bus = pci_add_new_bus(dev->bus, dev, sec_bus); pci_scan_child_bus(new_bus); - sn_pci_controller_fixup(pci_domain_nr(new_bus), - new_bus->number, - new_bus); new_ppb = 1; } - sn_bus_alloc_data(dev); pci_dev_put(dev); } } @@ -461,10 +452,12 @@ static inline int get_power_status(struct hotplug_slot *bss_hotplug_slot, { struct slot *slot = bss_hotplug_slot->private; struct pcibus_info *pcibus_info; + u32 power; pcibus_info = SN_PCIBUS_BUSSOFT_INFO(slot->pci_bus); mutex_lock(&sn_hotplug_mutex); - *value = pcibus_info->pbi_enabled_devices & (1 << slot->device_num); + power = pcibus_info->pbi_enabled_devices & (1 << slot->device_num); + *value = power ? 1 : 0; mutex_unlock(&sn_hotplug_mutex); return 0; } @@ -553,8 +546,8 @@ static int sn_pci_hotplug_init(void) int rc; int registered = 0; - if (sn_sal_rev() < SGI_HOTPLUG_PROM_REV) { - printk(KERN_ERR "%s: PROM version must be greater than 4.30\n", + if (!sn_prom_feature_available(PRF_HOTPLUG_SUPPORT)) { + printk(KERN_ERR "%s: PROM version does not support hotplug.\n", __FUNCTION__); return -EPERM; }