diff options
author | Jaroslav Kysela <perex@hera.kernel.org> | 2005-06-21 14:39:41 (GMT) |
---|---|---|
committer | Jaroslav Kysela <perex@hera.kernel.org> | 2005-06-21 14:39:41 (GMT) |
commit | fae6ec69c84d71b1d5bda9ede1a262c1681684aa (patch) | |
tree | eb4aff9a5c2b7d04ce09a3717bb1dd4a79fe7595 /drivers/pci | |
parent | bbc0274e9bb2e3f1d724d445a2bd32566b9b66f7 (diff) | |
parent | 1d345dac1f30af1cd9f3a1faa12f9f18f17f236e (diff) | |
download | linux-fsl-qoriq-fae6ec69c84d71b1d5bda9ede1a262c1681684aa.tar.xz |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/hotplug/cpci_hotplug_core.c | 304 | ||||
-rw-r--r-- | drivers/pci/hotplug/cpci_hotplug_pci.c | 149 | ||||
-rw-r--r-- | drivers/pci/hotplug/cpqphp_sysfs.c | 4 | ||||
-rw-r--r-- | drivers/pci/hotplug/pci_hotplug_core.c | 4 | ||||
-rw-r--r-- | drivers/pci/hotplug/rpadlpar_sysfs.c | 2 | ||||
-rw-r--r-- | drivers/pci/hotplug/shpchp_sysfs.c | 4 | ||||
-rw-r--r-- | drivers/pci/hotplug/shpchprm_acpi.c | 4 | ||||
-rw-r--r-- | drivers/pci/pci-driver.c | 31 | ||||
-rw-r--r-- | drivers/pci/pci-sysfs.c | 21 | ||||
-rw-r--r-- | drivers/pci/pci.ids | 1 | ||||
-rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 139 | ||||
-rw-r--r-- | drivers/pci/probe.c | 2 | ||||
-rw-r--r-- | drivers/pci/quirks.c | 41 |
13 files changed, 322 insertions, 384 deletions
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c index 9e9dab7..30af105 100644 --- a/drivers/pci/hotplug/cpci_hotplug_core.c +++ b/drivers/pci/hotplug/cpci_hotplug_core.c @@ -1,7 +1,7 @@ /* * CompactPCI Hot Plug Driver * - * Copyright (C) 2002 SOMA Networks, Inc. + * Copyright (C) 2002,2005 SOMA Networks, Inc. * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001 IBM Corp. * @@ -45,10 +45,10 @@ #define dbg(format, arg...) \ do { \ - if(cpci_debug) \ + if (cpci_debug) \ printk (KERN_DEBUG "%s: " format "\n", \ MY_NAME , ## arg); \ - } while(0) + } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg) @@ -111,10 +111,8 @@ enable_slot(struct hotplug_slot *hotplug_slot) dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name); - if(controller->ops->set_power) { + if (controller->ops->set_power) retval = controller->ops->set_power(slot, 1); - } - return retval; } @@ -126,37 +124,41 @@ disable_slot(struct hotplug_slot *hotplug_slot) dbg("%s - physical_slot = %s", __FUNCTION__, hotplug_slot->name); + down_write(&list_rwsem); + /* Unconfigure device */ dbg("%s - unconfiguring slot %s", __FUNCTION__, slot->hotplug_slot->name); - if((retval = cpci_unconfigure_slot(slot))) { + if ((retval = cpci_unconfigure_slot(slot))) { err("%s - could not unconfigure slot %s", __FUNCTION__, slot->hotplug_slot->name); - return retval; + goto disable_error; } dbg("%s - finished unconfiguring slot %s", __FUNCTION__, slot->hotplug_slot->name); /* Clear EXT (by setting it) */ - if(cpci_clear_ext(slot)) { + if (cpci_clear_ext(slot)) { err("%s - could not clear EXT for slot %s", __FUNCTION__, slot->hotplug_slot->name); retval = -ENODEV; + goto disable_error; } cpci_led_on(slot); - if(controller->ops->set_power) { - retval = controller->ops->set_power(slot, 0); - } + if (controller->ops->set_power) + if ((retval = controller->ops->set_power(slot, 0))) + goto disable_error; - if(update_adapter_status(slot->hotplug_slot, 0)) { + if (update_adapter_status(slot->hotplug_slot, 0)) warn("failure to update adapter file"); - } - if(slot->extracting) { + if (slot->extracting) { slot->extracting = 0; atomic_dec(&extracting); } +disable_error: + up_write(&list_rwsem); return retval; } @@ -165,9 +167,8 @@ cpci_get_power_status(struct slot *slot) { u8 power = 1; - if(controller->ops->get_power) { + if (controller->ops->get_power) power = controller->ops->get_power(slot); - } return power; } @@ -216,6 +217,8 @@ static void release_slot(struct hotplug_slot *hotplug_slot) kfree(slot->hotplug_slot->info); kfree(slot->hotplug_slot->name); kfree(slot->hotplug_slot); + if (slot->dev) + pci_dev_put(slot->dev); kfree(slot); } @@ -237,9 +240,8 @@ cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last) int status = -ENOMEM; int i; - if(!(controller && bus)) { + if (!(controller && bus)) return -ENODEV; - } /* * Create a structure for each slot, and register that slot @@ -316,32 +318,30 @@ int cpci_hp_unregister_bus(struct pci_bus *bus) { struct slot *slot; - struct list_head *tmp; - struct list_head *next; - int status; + struct slot *tmp; + int status = 0; down_write(&list_rwsem); - if(!slots) { + if (!slots) { up_write(&list_rwsem); return -1; } - list_for_each_safe(tmp, next, &slot_list) { - slot = list_entry(tmp, struct slot, slot_list); - if(slot->bus == bus) { + list_for_each_entry_safe(slot, tmp, &slot_list, slot_list) { + if (slot->bus == bus) { + list_del(&slot->slot_list); + slots--; + dbg("deregistering slot %s", slot->hotplug_slot->name); status = pci_hp_deregister(slot->hotplug_slot); - if(status) { + if (status) { err("pci_hp_deregister failed with error %d", status); - return status; + break; } - - list_del(&slot->slot_list); - slots--; } } up_write(&list_rwsem); - return 0; + return status; } /* This is the interrupt mode interrupt handler */ @@ -351,7 +351,7 @@ cpci_hp_intr(int irq, void *data, struct pt_regs *regs) dbg("entered cpci_hp_intr"); /* Check to see if it was our interrupt */ - if((controller->irq_flags & SA_SHIRQ) && + if ((controller->irq_flags & SA_SHIRQ) && !controller->ops->check_irq(controller->dev_id)) { dbg("exited cpci_hp_intr, not our interrupt"); return IRQ_NONE; @@ -373,38 +373,30 @@ cpci_hp_intr(int irq, void *data, struct pt_regs *regs) * INS bits of the cold-inserted devices. */ static int -init_slots(void) +init_slots(int clear_ins) { struct slot *slot; - struct list_head *tmp; struct pci_dev* dev; dbg("%s - enter", __FUNCTION__); down_read(&list_rwsem); - if(!slots) { + if (!slots) { up_read(&list_rwsem); return -1; } - list_for_each(tmp, &slot_list) { - slot = list_entry(tmp, struct slot, slot_list); + list_for_each_entry(slot, &slot_list, slot_list) { dbg("%s - looking at slot %s", __FUNCTION__, slot->hotplug_slot->name); - if(cpci_check_and_clear_ins(slot)) { + if (clear_ins && cpci_check_and_clear_ins(slot)) dbg("%s - cleared INS for slot %s", __FUNCTION__, slot->hotplug_slot->name); - dev = pci_find_slot(slot->bus->number, PCI_DEVFN(slot->number, 0)); - if(dev) { - if(update_adapter_status(slot->hotplug_slot, 1)) { - warn("failure to update adapter file"); - } - if(update_latch_status(slot->hotplug_slot, 1)) { - warn("failure to update latch file"); - } - slot->dev = dev; - } else { - err("%s - no driver attached to device in slot %s", - __FUNCTION__, slot->hotplug_slot->name); - } + dev = pci_get_slot(slot->bus, PCI_DEVFN(slot->number, 0)); + if (dev) { + if (update_adapter_status(slot->hotplug_slot, 1)) + warn("failure to update adapter file"); + if (update_latch_status(slot->hotplug_slot, 1)) + warn("failure to update latch file"); + slot->dev = dev; } } up_read(&list_rwsem); @@ -416,26 +408,28 @@ static int check_slots(void) { struct slot *slot; - struct list_head *tmp; int extracted; int inserted; u16 hs_csr; down_read(&list_rwsem); - if(!slots) { + if (!slots) { up_read(&list_rwsem); err("no slots registered, shutting down"); return -1; } extracted = inserted = 0; - list_for_each(tmp, &slot_list) { - slot = list_entry(tmp, struct slot, slot_list); + list_for_each_entry(slot, &slot_list, slot_list) { dbg("%s - looking at slot %s", __FUNCTION__, slot->hotplug_slot->name); - if(cpci_check_and_clear_ins(slot)) { - /* Some broken hardware (e.g. PLX 9054AB) asserts ENUM# twice... */ - if(slot->dev) { - warn("slot %s already inserted", slot->hotplug_slot->name); + if (cpci_check_and_clear_ins(slot)) { + /* + * Some broken hardware (e.g. PLX 9054AB) asserts + * ENUM# twice... + */ + if (slot->dev) { + warn("slot %s already inserted", + slot->hotplug_slot->name); inserted++; continue; } @@ -452,7 +446,7 @@ check_slots(void) /* Configure device */ dbg("%s - configuring slot %s", __FUNCTION__, slot->hotplug_slot->name); - if(cpci_configure_slot(slot)) { + if (cpci_configure_slot(slot)) { err("%s - could not configure slot %s", __FUNCTION__, slot->hotplug_slot->name); continue; @@ -465,13 +459,11 @@ check_slots(void) dbg("%s - slot %s HS_CSR (2) = %04x", __FUNCTION__, slot->hotplug_slot->name, hs_csr); - if(update_latch_status(slot->hotplug_slot, 1)) { + if (update_latch_status(slot->hotplug_slot, 1)) warn("failure to update latch file"); - } - if(update_adapter_status(slot->hotplug_slot, 1)) { + if (update_adapter_status(slot->hotplug_slot, 1)) warn("failure to update adapter file"); - } cpci_led_off(slot); @@ -481,7 +473,7 @@ check_slots(void) __FUNCTION__, slot->hotplug_slot->name, hs_csr); inserted++; - } else if(cpci_check_ext(slot)) { + } else if (cpci_check_ext(slot)) { /* Process extraction request */ dbg("%s - slot %s extracted", __FUNCTION__, slot->hotplug_slot->name); @@ -491,27 +483,25 @@ check_slots(void) dbg("%s - slot %s HS_CSR = %04x", __FUNCTION__, slot->hotplug_slot->name, hs_csr); - if(!slot->extracting) { - if(update_latch_status(slot->hotplug_slot, 0)) { + if (!slot->extracting) { + if (update_latch_status(slot->hotplug_slot, 0)) { warn("failure to update latch file"); - } - atomic_inc(&extracting); slot->extracting = 1; + atomic_inc(&extracting); } extracted++; - } else if(slot->extracting) { + } else if (slot->extracting) { hs_csr = cpci_get_hs_csr(slot); - if(hs_csr == 0xffff) { + if (hs_csr == 0xffff) { /* * Hmmm, we're likely hosed at this point, should we * bother trying to tell the driver or not? */ err("card in slot %s was improperly removed", slot->hotplug_slot->name); - if(update_adapter_status(slot->hotplug_slot, 0)) { + if (update_adapter_status(slot->hotplug_slot, 0)) warn("failure to update adapter file"); - } slot->extracting = 0; atomic_dec(&extracting); } @@ -520,10 +510,9 @@ check_slots(void) up_read(&list_rwsem); dbg("inserted=%d, extracted=%d, extracting=%d", inserted, extracted, atomic_read(&extracting)); - if(inserted || extracted) { + if (inserted || extracted) return extracted; - } - else if(!atomic_read(&extracting)) { + else if (!atomic_read(&extracting)) { err("cannot find ENUM# source, shutting down"); return -1; } @@ -541,12 +530,12 @@ event_thread(void *data) unlock_kernel(); dbg("%s - event thread started", __FUNCTION__); - while(1) { + while (1) { dbg("event thread sleeping"); down_interruptible(&event_semaphore); dbg("event thread woken, thread_finished = %d", thread_finished); - if(thread_finished || signal_pending(current)) + if (thread_finished || signal_pending(current)) break; do { rc = check_slots(); @@ -558,7 +547,9 @@ event_thread(void *data) thread_finished = 1; break; } - } while(atomic_read(&extracting) != 0); + } while (atomic_read(&extracting) && !thread_finished); + if (thread_finished) + break; /* Re-enable ENUM# interrupt */ dbg("%s - re-enabling irq", __FUNCTION__); @@ -579,21 +570,21 @@ poll_thread(void *data) daemonize("cpci_hp_polld"); unlock_kernel(); - while(1) { - if(thread_finished || signal_pending(current)) + while (1) { + if (thread_finished || signal_pending(current)) break; - if(controller->ops->query_enum()) { + if (controller->ops->query_enum()) { do { rc = check_slots(); - if(rc > 0) { + if (rc > 0) { /* Give userspace a chance to handle extraction */ msleep(500); - } else if(rc < 0) { + } else if (rc < 0) { dbg("%s - error checking slots", __FUNCTION__); thread_finished = 1; break; } - } while(atomic_read(&extracting) != 0); + } while (atomic_read(&extracting) && !thread_finished); } msleep(100); } @@ -612,12 +603,11 @@ cpci_start_thread(void) init_MUTEX_LOCKED(&thread_exit); thread_finished = 0; - if(controller->irq) { + if (controller->irq) pid = kernel_thread(event_thread, NULL, 0); - } else { + else pid = kernel_thread(poll_thread, NULL, 0); - } - if(pid < 0) { + if (pid < 0) { err("Can't start up our thread"); return -1; } @@ -630,9 +620,8 @@ cpci_stop_thread(void) { thread_finished = 1; dbg("thread finish command given"); - if(controller->irq) { + if (controller->irq) up(&event_semaphore); - } dbg("wait for thread to exit"); down(&thread_exit); } @@ -642,45 +631,67 @@ cpci_hp_register_controller(struct cpci_hp_controller *new_controller) { int status = 0; - if(!controller) { - controller = new_controller; - if(controller->irq) { - if(request_irq(controller->irq, - cpci_hp_intr, - controller->irq_flags, - MY_NAME, controller->dev_id)) { - err("Can't get irq %d for the hotplug cPCI controller", controller->irq); - status = -ENODEV; - } - dbg("%s - acquired controller irq %d", __FUNCTION__, - controller->irq); + if (controller) + return -1; + if (!(new_controller && new_controller->ops)) + return -EINVAL; + if (new_controller->irq) { + if (!(new_controller->ops->enable_irq && + new_controller->ops->disable_irq)) + status = -EINVAL; + if (request_irq(new_controller->irq, + cpci_hp_intr, + new_controller->irq_flags, + MY_NAME, + new_controller->dev_id)) { + err("Can't get irq %d for the hotplug cPCI controller", + new_controller->irq); + status = -ENODEV; } - } else { - err("cPCI hotplug controller already registered"); - status = -1; + dbg("%s - acquired controller irq %d", + __FUNCTION__, new_controller->irq); } + if (!status) + controller = new_controller; return status; } +static void +cleanup_slots(void) +{ + struct slot *slot; + struct slot *tmp; + + /* + * Unregister all of our slots with the pci_hotplug subsystem, + * and free up all memory that we had allocated. + */ + down_write(&list_rwsem); + if (!slots) + goto cleanup_null; + list_for_each_entry_safe(slot, tmp, &slot_list, slot_list) { + list_del(&slot->slot_list); + pci_hp_deregister(slot->hotplug_slot); + } +cleanup_null: + up_write(&list_rwsem); + return; +} + int cpci_hp_unregister_controller(struct cpci_hp_controller *old_controller) { int status = 0; - if(controller) { - if(atomic_read(&extracting) != 0) { - return -EBUSY; - } - if(!thread_finished) { + if (controller) { + if (!thread_finished) cpci_stop_thread(); - } - if(controller->irq) { + if (controller->irq) free_irq(controller->irq, controller->dev_id); - } controller = NULL; - } else { + cleanup_slots(); + } else status = -ENODEV; - } return status; } @@ -691,32 +702,28 @@ cpci_hp_start(void) int status; dbg("%s - enter", __FUNCTION__); - if(!controller) { + if (!controller) return -ENODEV; - } down_read(&list_rwsem); - if(list_empty(&slot_list)) { + if (list_empty(&slot_list)) { up_read(&list_rwsem); return -ENODEV; } up_read(&list_rwsem); - if(first) { - status = init_slots(); - if(status) { - return status; - } + status = init_slots(first); + if (first) first = 0; - } + if (status) + return status; status = cpci_start_thread(); - if(status) { + if (status) return status; - } dbg("%s - thread started", __FUNCTION__); - if(controller->irq) { + if (controller->irq) { /* Start enum interrupt processing */ dbg("%s - enabling irq", __FUNCTION__); controller->ops->enable_irq(); @@ -728,13 +735,9 @@ cpci_hp_start(void) int cpci_hp_stop(void) { - if(!controller) { + if (!controller) return -ENODEV; - } - if(atomic_read(&extracting) != 0) { - return -EBUSY; - } - if(controller->irq) { + if (controller->irq) { /* Stop enum interrupt processing */ dbg("%s - disabling irq", __FUNCTION__); controller->ops->disable_irq(); @@ -743,34 +746,6 @@ cpci_hp_stop(void) return 0; } -static void __exit -cleanup_slots(void) -{ - struct list_head *tmp; - struct slot *slot; - - /* - * Unregister all of our slots with the pci_hotplug subsystem, - * and free up all memory that we had allocated. - */ - down_write(&list_rwsem); - if(!slots) { - goto null_cleanup; - } - list_for_each(tmp, &slot_list) { - slot = list_entry(tmp, struct slot, slot_list); - list_del(&slot->slot_list); - pci_hp_deregister(slot->hotplug_slot); - kfree(slot->hotplug_slot->info); - kfree(slot->hotplug_slot->name); - kfree(slot->hotplug_slot); - kfree(slot); - } - null_cleanup: - up_write(&list_rwsem); - return; -} - int __init cpci_hotplug_init(int debug) { @@ -784,7 +759,8 @@ cpci_hotplug_exit(void) /* * Clean everything up. */ - cleanup_slots(); + cpci_hp_stop(); + cpci_hp_unregister_controller(controller); } EXPORT_SYMBOL_GPL(cpci_hp_register_controller); diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index 69eb4fc..225b5e5 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -1,7 +1,7 @@ /* * CompactPCI Hot Plug Driver PCI functions * - * Copyright (C) 2002 by SOMA Networks, Inc. + * Copyright (C) 2002,2005 by SOMA Networks, Inc. * * All rights reserved. * @@ -38,10 +38,10 @@ extern int cpci_debug; #define dbg(format, arg...) \ do { \ - if(cpci_debug) \ + if (cpci_debug) \ printk (KERN_DEBUG "%s: " format "\n", \ MY_NAME , ## arg); \ - } while(0) + } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg) @@ -57,16 +57,15 @@ u8 cpci_get_attention_status(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return 0; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return 0; - } + return hs_csr & 0x0008 ? 1 : 0; } @@ -78,27 +77,22 @@ int cpci_set_attention_status(struct slot* slot, int status) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return 0; - } - - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return 0; - } - if(status) { + if (status) hs_csr |= HS_CSR_LOO; - } else { + else hs_csr &= ~HS_CSR_LOO; - } - if(pci_bus_write_config_word(slot->bus, + if (pci_bus_write_config_word(slot->bus, slot->devfn, hs_cap + 2, - hs_csr)) { + hs_csr)) return 0; - } return 1; } @@ -110,16 +104,13 @@ u16 cpci_get_hs_csr(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return 0xFFFF; - } - - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return 0xFFFF; - } return hs_csr; } @@ -132,24 +123,22 @@ int cpci_check_and_clear_ins(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return 0; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return 0; - } - if(hs_csr & HS_CSR_INS) { + if (hs_csr & HS_CSR_INS) { /* Clear INS (by setting it) */ - if(pci_bus_write_config_word(slot->bus, + if (pci_bus_write_config_word(slot->bus, slot->devfn, hs_cap + 2, - hs_csr)) { + hs_csr)) ins = 0; - } - ins = 1; + else + ins = 1; } return ins; } @@ -163,18 +152,15 @@ int cpci_check_ext(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return 0; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return 0; - } - if(hs_csr & HS_CSR_EXT) { + if (hs_csr & HS_CSR_EXT) ext = 1; - } return ext; } @@ -186,23 +172,20 @@ int cpci_clear_ext(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return -ENODEV; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return -ENODEV; - } - if(hs_csr & HS_CSR_EXT) { + if (hs_csr & HS_CSR_EXT) { /* Clear EXT (by setting it) */ - if(pci_bus_write_config_word(slot->bus, + if (pci_bus_write_config_word(slot->bus, slot->devfn, hs_cap + 2, - hs_csr)) { + hs_csr)) return -ENODEV; - } } return 0; } @@ -215,18 +198,16 @@ int cpci_led_on(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return -ENODEV; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return -ENODEV; - } - if((hs_csr & HS_CSR_LOO) != HS_CSR_LOO) { + if ((hs_csr & HS_CSR_LOO) != HS_CSR_LOO) { hs_csr |= HS_CSR_LOO; - if(pci_bus_write_config_word(slot->bus, + if (pci_bus_write_config_word(slot->bus, slot->devfn, hs_cap + 2, hs_csr)) { @@ -246,18 +227,16 @@ int cpci_led_off(struct slot* slot) hs_cap = pci_bus_find_capability(slot->bus, slot->devfn, PCI_CAP_ID_CHSWP); - if(!hs_cap) { + if (!hs_cap) return -ENODEV; - } - if(pci_bus_read_config_word(slot->bus, + if (pci_bus_read_config_word(slot->bus, slot->devfn, hs_cap + 2, - &hs_csr)) { + &hs_csr)) return -ENODEV; - } - if(hs_csr & HS_CSR_LOO) { + if (hs_csr & HS_CSR_LOO) { hs_csr &= ~HS_CSR_LOO; - if(pci_bus_write_config_word(slot->bus, + if (pci_bus_write_config_word(slot->bus, slot->devfn, hs_cap + 2, hs_csr)) { @@ -274,19 +253,6 @@ int cpci_led_off(struct slot* slot) * Device configuration functions */ -static void cpci_enable_device(struct pci_dev *dev) -{ - struct pci_bus *bus; - - pci_enable_device(dev); - if(dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - bus = dev->subordinate; - list_for_each_entry(dev, &bus->devices, bus_list) { - cpci_enable_device(dev); - } - } -} - int cpci_configure_slot(struct slot* slot) { unsigned char busnr; @@ -294,14 +260,14 @@ int cpci_configure_slot(struct slot* slot) dbg("%s - enter", __FUNCTION__); - if(slot->dev == NULL) { + if (slot->dev == NULL) { dbg("pci_dev null, finding %02x:%02x:%x", slot->bus->number, PCI_SLOT(slot->devfn), PCI_FUNC(slot->devfn)); - slot->dev = pci_find_slot(slot->bus->number, slot->devfn); + slot->dev = pci_get_slot(slot->bus, slot->devfn); } /* Still NULL? Well then scan for it! */ - if(slot->dev == NULL) { + if (slot->dev == NULL) { int n; dbg("pci_dev still null"); @@ -311,10 +277,10 @@ int cpci_configure_slot(struct slot* slot) */ n = pci_scan_slot(slot->bus, slot->devfn); dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n); - if(n > 0) + if (n > 0) pci_bus_add_devices(slot->bus); - slot->dev = pci_find_slot(slot->bus->number, slot->devfn); - if(slot->dev == NULL) { + slot->dev = pci_get_slot(slot->bus, slot->devfn); + if (slot->dev == NULL) { err("Could not find PCI device for slot %02x", slot->number); return 1; } @@ -329,8 +295,6 @@ int cpci_configure_slot(struct slot* slot) pci_bus_assign_resources(slot->dev->bus); - cpci_enable_device(slot->dev); - dbg("%s - exit", __FUNCTION__); return 0; } @@ -341,19 +305,22 @@ int cpci_unconfigure_slot(struct slot* slot) struct pci_dev *dev; dbg("%s - enter", __FUNCTION__); - if(!slot->dev) { + if (!slot->dev) { err("No device for slot %02x\n", slot->number); return -ENODEV; } for (i = 0; i < 8; i++) { - dev = pci_find_slot(slot->bus->number, + dev = pci_get_slot(slot->bus, PCI_DEVFN(PCI_SLOT(slot->devfn), i)); - if(dev) { + if (dev) { pci_remove_bus_device(dev); - slot->dev = NULL; + pci_dev_put(dev); } } + pci_dev_put(slot->dev); + slot->dev = NULL; + dbg("%s - exit", __FUNCTION__); return 0; } diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c index 41c7971..4c11048 100644 --- a/drivers/pci/hotplug/cpqphp_sysfs.c +++ b/drivers/pci/hotplug/cpqphp_sysfs.c @@ -38,7 +38,7 @@ /* A few routines that create sysfs entries for the hot plug controller */ -static ssize_t show_ctrl (struct device *dev, char *buf) +static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pci_dev; struct controller *ctrl; @@ -82,7 +82,7 @@ static ssize_t show_ctrl (struct device *dev, char *buf) } static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL); -static ssize_t show_dev (struct device *dev, char *buf) +static ssize_t show_dev (struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pci_dev; struct controller *ctrl; diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index c802f62..c428290 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -73,7 +73,7 @@ static ssize_t hotplug_slot_attr_show(struct kobject *kobj, { struct hotplug_slot *slot = to_hotplug_slot(kobj); struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr); - return attribute->show ? attribute->show(slot, buf) : 0; + return attribute->show ? attribute->show(slot, buf) : -EIO; } static ssize_t hotplug_slot_attr_store(struct kobject *kobj, @@ -81,7 +81,7 @@ static ssize_t hotplug_slot_attr_store(struct kobject *kobj, { struct hotplug_slot *slot = to_hotplug_slot(kobj); struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr); - return attribute->store ? attribute->store(slot, buf, len) : 0; + return attribute->store ? attribute->store(slot, buf, len) : -EIO; } static struct sysfs_ops hotplug_slot_sysfs_ops = { diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c index 3285b82..752e651 100644 --- a/drivers/pci/hotplug/rpadlpar_sysfs.c +++ b/drivers/pci/hotplug/rpadlpar_sysfs.c @@ -48,7 +48,7 @@ dlpar_attr_store(struct kobject * kobj, struct attribute * attr, struct dlpar_io_attr *dlpar_attr = container_of(attr, struct dlpar_io_attr, attr); return dlpar_attr->store ? - dlpar_attr->store(dlpar_attr, buf, nbytes) : 0; + dlpar_attr->store(dlpar_attr, buf, nbytes) : -EIO; } static struct sysfs_ops dlpar_attr_sysfs_ops = { diff --git a/drivers/pci/hotplug/shpchp_sysfs.c b/drivers/pci/hotplug/shpchp_sysfs.c index 9a1ee13..c9445eb 100644 --- a/drivers/pci/hotplug/shpchp_sysfs.c +++ b/drivers/pci/hotplug/shpchp_sysfs.c @@ -38,7 +38,7 @@ /* A few routines that create sysfs entries for the hot plug controller */ -static ssize_t show_ctrl (struct device *dev, char *buf) +static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pci_dev; struct controller *ctrl; @@ -82,7 +82,7 @@ static ssize_t show_ctrl (struct device *dev, char *buf) } static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL); -static ssize_t show_dev (struct device *dev, char *buf) +static ssize_t show_dev (struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pci_dev; struct controller *ctrl; diff --git a/drivers/pci/hotplug/shpchprm_acpi.c b/drivers/pci/hotplug/shpchprm_acpi.c index 243a51d..7957cdc 100644 --- a/drivers/pci/hotplug/shpchprm_acpi.c +++ b/drivers/pci/hotplug/shpchprm_acpi.c @@ -1626,7 +1626,7 @@ int shpchprm_set_hpp( pci_bus->number = func->bus; devfn = PCI_DEVFN(func->device, func->function); - ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus); + ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->slot_bus); if (ab) { if (ab->_hpp) { @@ -1681,7 +1681,7 @@ void shpchprm_enable_card( | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; bcmd = bcommand = bcommand | PCI_BRIDGE_CTL_NO_ISA; - ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus); + ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->slot_bus); if (ab) { if (ab->_hpp) { if (ab->_hpp->enable_perr) { diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index fe98553..e65bf2b 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -335,13 +335,14 @@ pci_driver_attr_show(struct kobject * kobj, struct attribute *attr, char *buf) { struct device_driver *driver = kobj_to_pci_driver(kobj); struct driver_attribute *dattr = attr_to_driver_attribute(attr); - ssize_t ret = 0; + ssize_t ret; - if (get_driver(driver)) { - if (dattr->show) - ret = dattr->show(driver, buf); - put_driver(driver); - } + if (!get_driver(driver)) + return -ENODEV; + + ret = dattr->show ? dattr->show(driver, buf) : -EIO; + + put_driver(driver); return ret; } @@ -351,13 +352,14 @@ pci_driver_attr_store(struct kobject * kobj, struct attribute *attr, { struct device_driver *driver = kobj_to_pci_driver(kobj); struct driver_attribute *dattr = attr_to_driver_attribute(attr); - ssize_t ret = 0; + ssize_t ret; - if (get_driver(driver)) { - if (dattr->store) - ret = dattr->store(driver, buf, count); - put_driver(driver); - } + if (!get_driver(driver)) + return -ENODEV; + + ret = dattr->store ? dattr->store(driver, buf, count) : -EIO; + + put_driver(driver); return ret; } @@ -393,7 +395,10 @@ int pci_register_driver(struct pci_driver *drv) drv->driver.bus = &pci_bus_type; drv->driver.probe = pci_device_probe; drv->driver.remove = pci_device_remove; - drv->driver.shutdown = pci_device_shutdown, + /* FIXME, once all of the existing PCI drivers have been fixed to set + * the pci shutdown function, this test can go away. */ + if (!drv->driver.shutdown) + drv->driver.shutdown = pci_device_shutdown; drv->driver.owner = drv->owner; drv->driver.kobj.ktype = &pci_driver_kobj_type; pci_init_dynids(&drv->dynids); diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 6ca0061..a15f940 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -29,7 +29,7 @@ static int sysfs_initialized; /* = 0 */ /* show configuration fields */ #define pci_config_attr(field, format_string) \ static ssize_t \ -field##_show(struct device *dev, char *buf) \ +field##_show(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct pci_dev *pdev; \ \ @@ -44,7 +44,7 @@ pci_config_attr(subsystem_device, "0x%04x\n"); pci_config_attr(class, "0x%06x\n"); pci_config_attr(irq, "%u\n"); -static ssize_t local_cpus_show(struct device *dev, char *buf) +static ssize_t local_cpus_show(struct device *dev, struct device_attribute *attr, char *buf) { cpumask_t mask = pcibus_to_cpumask(to_pci_dev(dev)->bus); int len = cpumask_scnprintf(buf, PAGE_SIZE-2, mask); @@ -54,7 +54,7 @@ static ssize_t local_cpus_show(struct device *dev, char *buf) /* show resources */ static ssize_t -resource_show(struct device * dev, char * buf) +resource_show(struct device * dev, struct device_attribute *attr, char * buf) { struct pci_dev * pci_dev = to_pci_dev(dev); char * str = buf; @@ -73,7 +73,7 @@ resource_show(struct device * dev, char * buf) return (str - buf); } -static ssize_t modalias_show(struct device *dev, char *buf) +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -339,16 +339,17 @@ pci_create_resource_files(struct pci_dev *pdev) if (!pci_resource_len(pdev, i)) continue; - res_attr = kmalloc(sizeof(*res_attr) + 10, GFP_ATOMIC); + /* allocate attribute structure, piggyback attribute name */ + res_attr = kcalloc(1, sizeof(*res_attr) + 10, GFP_ATOMIC); if (res_attr) { - memset(res_attr, 0, sizeof(*res_attr) + 10); + char *res_attr_name = (char *)(res_attr + 1); + pdev->res_attr[i] = res_attr; - /* Allocated above after the res_attr struct */ - res_attr->attr.name = (char *)(res_attr + 1); - sprintf(res_attr->attr.name, "resource%d", i); - res_attr->size = pci_resource_len(pdev, i); + sprintf(res_attr_name, "resource%d", i); + res_attr->attr.name = res_attr_name; res_attr->attr.mode = S_IRUSR | S_IWUSR; res_attr->attr.owner = THIS_MODULE; + res_attr->size = pci_resource_len(pdev, i); res_attr->mmap = pci_mmap_resource; res_attr->private = &pdev->resource[i]; sysfs_create_bin_file(&pdev->dev.kobj, res_attr); diff --git a/drivers/pci/pci.ids b/drivers/pci/pci.ids index 93481b4..1d2ef1e 100644 --- a/drivers/pci/pci.ids +++ b/drivers/pci/pci.ids @@ -7173,6 +7173,7 @@ 080f Sentry5 DDR/SDR RAM Controller 0811 Sentry5 External Interface Core 0816 BCM3302 Sentry5 MIPS32 CPU + 1600 NetXtreme BCM5752 Gigabit Ethernet PCI Express 1644 NetXtreme BCM5700 Gigabit Ethernet 1014 0277 Broadcom Vigil B5700 1000Base-T 1028 00d1 Broadcom BCM5700 diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 5762857..f5c5f10 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -232,19 +232,16 @@ static void pcie_device_init(struct pci_dev *parent, struct pcie_device *dev, /* Initialize generic device interface */ device = &dev->device; memset(device, 0, sizeof(struct device)); - INIT_LIST_HEAD(&device->node); - INIT_LIST_HEAD(&device->children); - INIT_LIST_HEAD(&device->bus_list); device->bus = &pcie_port_bus_type; device->driver = NULL; - device->driver_data = NULL; + device->driver_data = NULL; device->release = release_pcie_device; /* callback to free pcie dev */ - sprintf(&device->bus_id[0], "pcie%02x", + sprintf(&device->bus_id[0], "pcie%02x", get_descriptor_id(port_type, service_type)); device->parent = &parent->dev; } -static struct pcie_device* alloc_pcie_device(struct pci_dev *parent, +static struct pcie_device* alloc_pcie_device(struct pci_dev *parent, int port_type, int service_type, int irq, int irq_mode) { struct pcie_device *device; @@ -270,9 +267,9 @@ int pcie_port_device_probe(struct pci_dev *dev) pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, ®); type = (reg >> 4) & PORT_TYPE_MASK; if ( type == PCIE_RC_PORT || type == PCIE_SW_UPSTREAM_PORT || - type == PCIE_SW_DOWNSTREAM_PORT ) + type == PCIE_SW_DOWNSTREAM_PORT ) return 0; - + return -ENODEV; } @@ -283,8 +280,8 @@ int pcie_port_device_register(struct pci_dev *dev) u16 reg16; /* Get port type */ - pci_read_config_word(dev, - pci_find_capability(dev, PCI_CAP_ID_EXP) + + pci_read_config_word(dev, + pci_find_capability(dev, PCI_CAP_ID_EXP) + PCIE_CAPABILITIES_REG, ®16); type = (reg16 >> 4) & PORT_TYPE_MASK; @@ -299,11 +296,11 @@ int pcie_port_device_register(struct pci_dev *dev) if (capabilities & (1 << i)) { child = alloc_pcie_device( dev, /* parent */ - type, /* port type */ + type, /* port type */ i, /* service type */ vectors[i], /* irq */ irq_mode /* interrupt mode */); - if (child) { + if (child) { status = device_register(&child->device); if (status) { kfree(child); @@ -317,84 +314,78 @@ int pcie_port_device_register(struct pci_dev *dev) } #ifdef CONFIG_PM -int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state) +static int suspend_iter(struct device *dev, void *data) { - struct list_head *head, *tmp; - struct device *parent, *child; - struct device_driver *driver; struct pcie_port_service_driver *service_driver; + u32 state = (u32)data; + + if ((dev->bus == &pcie_port_bus_type) && + (dev->driver)) { + service_driver = to_service_driver(dev->driver); + if (service_driver->suspend) + service_driver->suspend(to_pcie_device(dev), state); + } + return 0; +} - parent = &dev->dev; - head = &parent->children; - tmp = head->next; - while (head != tmp) { - child = container_of(tmp, struct device, node); - tmp = tmp->next; - if (child->bus != &pcie_port_bus_type) - continue; - driver = child->driver; - if (!driver) - continue; - service_driver = to_service_driver(driver); - if (service_driver->suspend) - service_driver->suspend(to_pcie_device(child), state); - } - return 0; +int pcie_port_device_suspend(struct pci_dev *dev, u32 state) +{ + device_for_each_child(&dev->dev, (void *)state, suspend_iter); + return 0; } -int pcie_port_device_resume(struct pci_dev *dev) -{ - struct list_head *head, *tmp; - struct device *parent, *child; - struct device_driver *driver; +static int resume_iter(struct device *dev, void *data) +{ struct pcie_port_service_driver *service_driver; - parent = &dev->dev; - head = &parent->children; - tmp = head->next; - while (head != tmp) { - child = container_of(tmp, struct device, node); - tmp = tmp->next; - if (child->bus != &pcie_port_bus_type) - continue; - driver = child->driver; - if (!driver) - continue; - service_driver = to_service_driver(driver); - if (service_driver->resume) - service_driver->resume(to_pcie_device(child)); + if ((dev->bus == &pcie_port_bus_type) && + (dev->driver)) { + service_driver = to_service_driver(dev->driver); + if (service_driver->resume) + service_driver->resume(to_pcie_device(dev)); } - return 0; + return 0; +} +int pcie_port_device_resume(struct pci_dev *dev) +{ + device_for_each_child(&dev->dev, NULL, resume_iter); + return 0; } #endif -void pcie_port_device_remove(struct pci_dev *dev) +static int remove_iter(struct device *dev, void *data) { - struct list_head *head, *tmp; - struct device *parent, *child; - struct device_driver *driver; struct pcie_port_service_driver *service_driver; - int interrupt_mode = PCIE_PORT_INTx_MODE; - parent = &dev->dev; - head = &parent->children; - tmp = head->next; - while (head != tmp) { - child = container_of(tmp, struct device, node); - tmp = tmp->next; - if (child->bus != &pcie_port_bus_type) - continue; - driver = child->driver; - if (driver) { - service_driver = to_service_driver(driver); - if (service_driver->remove) - service_driver->remove(to_pcie_device(child)); + if (dev->bus == &pcie_port_bus_type) { + if (dev->driver) { + service_driver = to_service_driver(dev->driver); + if (service_driver->remove) + service_driver->remove(to_pcie_device(dev)); } - interrupt_mode = (to_pcie_device(child))->interrupt_mode; - put_device(child); - device_unregister(child); + *(unsigned long*)data = (unsigned long)dev; + return 1; } + return 0; +} + +void pcie_port_device_remove(struct pci_dev *dev) +{ + struct device *device; + unsigned long device_addr; + int interrupt_mode = PCIE_PORT_INTx_MODE; + int status; + + do { + status = device_for_each_child(&dev->dev, &device_addr, remove_iter); + if (status) { + device = (struct device*)device_addr; + interrupt_mode = (to_pcie_device(device))->interrupt_mode; + put_device(device); + device_unregister(device); + } + } while (status); /* Switch to INTx by default if MSI enabled */ if (interrupt_mode == PCIE_PORT_MSIX_MODE) pci_disable_msix(dev); @@ -423,7 +414,7 @@ int pcie_port_service_register(struct pcie_port_service_driver *new) new->driver.resume = pcie_port_resume_service; return driver_register(&new->driver); -} +} void pcie_port_service_unregister(struct pcie_port_service_driver *new) { diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b7ae878..fd48b20 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -125,7 +125,7 @@ static inline unsigned int pci_calc_resource_flags(unsigned int flags) /* * Find the extent of a PCI decode.. */ -static u32 pci_size(u32 base, u32 maxbase, unsigned long mask) +static u32 pci_size(u32 base, u32 maxbase, u32 mask) { u32 size = mask & maxbase; /* Find the significant bits */ if (!size) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 637e949..968033f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -456,21 +456,16 @@ static void __init quirk_amd_8131_ioapic(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_APIC, quirk_amd_8131_ioapic ); +static void __init quirk_svw_msi(struct pci_dev *dev) +{ + pci_msi_quirk = 1; + printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi ); #endif /* CONFIG_X86_IO_APIC */ /* - * Via 686A/B: The PCI_INTERRUPT_LINE register for the on-chip - * devices, USB0/1, AC97, MC97, and ACPI, has an unusual feature: - * when written, it makes an internal connection to the PIC. - * For these devices, this register is defined to be 4 bits wide. - * Normally this is fine. However for IO-APIC motherboards, or - * non-x86 architectures (yes Via exists on PPC among other places), - * we must mask the PCI_INTERRUPT_LINE value versus 0xf to get - * interrupts delivered properly. - */ - -/* * FIXME: it is questionable that quirk_via_acpi * is needed. It shows up as an ISA bridge, and does not * support the PCI_INTERRUPT_LINE register at all. Therefore @@ -492,28 +487,30 @@ static void __devinit quirk_via_acpi(struct pci_dev *d) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi ); -static void quirk_via_irqpic(struct pci_dev *dev) +/* + * Via 686A/B: The PCI_INTERRUPT_LINE register for the on-chip + * devices, USB0/1, AC97, MC97, and ACPI, has an unusual feature: + * when written, it makes an internal connection to the PIC. + * For these devices, this register is defined to be 4 bits wide. + * Normally this is fine. However for IO-APIC motherboards, or + * non-x86 architectures (yes Via exists on PPC among other places), + * we must mask the PCI_INTERRUPT_LINE value versus 0xf to get + * interrupts delivered properly. + */ +static void quirk_via_irq(struct pci_dev *dev) { u8 irq, new_irq; -#ifdef CONFIG_X86_IO_APIC - if (nr_ioapics && !skip_ioapic_setup) - return; -#endif -#ifdef CONFIG_ACPI - if (acpi_irq_model != ACPI_IRQ_MODEL_PIC) - return; -#endif new_irq = dev->irq & 0xf; pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); if (new_irq != irq) { - printk(KERN_INFO "PCI: Via PIC IRQ fixup for %s, from %d to %d\n", + printk(KERN_INFO "PCI: Via IRQ fixup for %s, from %d to %d\n", pci_name(dev), irq, new_irq); udelay(15); /* unknown if delay really needed */ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); } } -DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irqpic); +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq); /* * PIIX3 USB: We have to disable USB interrupts that are |