X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Facpi%2Fpci_link.c;h=7f3e7e77e79436e9984c52a4d6c80345f3f3265d;hb=f834c755423332a6ff4397fae754029a6a7a8249;hp=415b2628fe856996fe24390d94ac754530afb1da;hpb=a6fc67202e0224e6c9d1d285cc0b444bce887ed5;p=linux-2.6-omap-h63xx.git diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 415b2628fe8..7f3e7e77e79 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -83,7 +83,6 @@ struct acpi_pci_link_irq { struct acpi_pci_link { struct list_head node; struct acpi_device *device; - acpi_handle handle; struct acpi_pci_link_irq irq; int refcnt; }; @@ -107,24 +106,23 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) struct acpi_pci_link *link = (struct acpi_pci_link *)context; u32 i = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible"); switch (resource->type) { case ACPI_RESOURCE_TYPE_START_DEPENDENT: - return_ACPI_STATUS(AE_OK); + return AE_OK; case ACPI_RESOURCE_TYPE_IRQ: { struct acpi_resource_irq *p = &resource->data.irq; if (!p || !p->interrupt_count) { - ACPI_WARNING((AE_INFO, "Blank IRQ resource")); - return_ACPI_STATUS(AE_OK); + printk(KERN_WARNING PREFIX "Blank IRQ resource\n"); + return AE_OK; } for (i = 0; (i < p->interrupt_count && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) { if (!p->interrupts[i]) { - ACPI_WARNING((AE_INFO, "Invalid IRQ %d", - p->interrupts[i])); + printk(KERN_WARNING PREFIX "Invalid IRQ %d\n", + p->interrupts[i]); continue; } link->irq.possible[i] = p->interrupts[i]; @@ -140,16 +138,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) struct acpi_resource_extended_irq *p = &resource->data.extended_irq; if (!p || !p->interrupt_count) { - ACPI_WARNING((AE_INFO, - "Blank EXT IRQ resource")); - return_ACPI_STATUS(AE_OK); + printk(KERN_WARNING PREFIX + "Blank EXT IRQ resource\n"); + return AE_OK; } for (i = 0; (i < p->interrupt_count && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) { if (!p->interrupts[i]) { - ACPI_WARNING((AE_INFO, "Invalid IRQ %d", - p->interrupts[i])); + printk(KERN_WARNING PREFIX "Invalid IRQ %d\n", + p->interrupts[i]); continue; } link->irq.possible[i] = p->interrupts[i]; @@ -161,34 +159,33 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) break; } default: - ACPI_ERROR((AE_INFO, "Resource is not an IRQ entry\n")); - return_ACPI_STATUS(AE_OK); + printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n"); + return AE_OK; } - return_ACPI_STATUS(AE_CTRL_TERMINATE); + return AE_CTRL_TERMINATE; } static int acpi_pci_link_get_possible(struct acpi_pci_link *link) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible"); if (!link) - return_VALUE(-EINVAL); + return -EINVAL; - status = acpi_walk_resources(link->handle, METHOD_NAME__PRS, + status = acpi_walk_resources(link->device->handle, METHOD_NAME__PRS, acpi_pci_link_check_possible, link); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS")); - return_VALUE(-ENODEV); + return -ENODEV; } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d possible IRQs\n", link->irq.possible_count)); - return_VALUE(0); + return 0; } static acpi_status @@ -196,7 +193,6 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) { int *irq = (int *)context; - ACPI_FUNCTION_TRACE("acpi_pci_link_check_current"); switch (resource->type) { case ACPI_RESOURCE_TYPE_IRQ: @@ -209,7 +205,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Blank IRQ resource\n")); - return_ACPI_STATUS(AE_OK); + return AE_OK; } *irq = p->interrupts[0]; break; @@ -223,20 +219,20 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) * extended IRQ descriptors must * return at least 1 IRQ */ - ACPI_WARNING((AE_INFO, - "Blank EXT IRQ resource")); - return_ACPI_STATUS(AE_OK); + printk(KERN_WARNING PREFIX + "Blank EXT IRQ resource\n"); + return AE_OK; } *irq = p->interrupts[0]; break; } break; default: - ACPI_ERROR((AE_INFO, "Resource %d isn't an IRQ", resource->type)); + printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type); case ACPI_RESOURCE_TYPE_END_TAG: - return_ACPI_STATUS(AE_OK); + return AE_OK; } - return_ACPI_STATUS(AE_CTRL_TERMINATE); + return AE_CTRL_TERMINATE; } /* @@ -252,10 +248,8 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) acpi_status status = AE_OK; int irq = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_get_current"); - - if (!link || !link->handle) - return_VALUE(-EINVAL); + if (!link) + return -EINVAL; link->irq.active = 0; @@ -264,13 +258,13 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) /* Query _STA, set link->device->status */ result = acpi_bus_get_status(link->device); if (result) { - ACPI_ERROR((AE_INFO, "Unable to read status")); + printk(KERN_ERR PREFIX "Unable to read status\n"); goto end; } if (!link->device->status.enabled) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link disabled\n")); - return_VALUE(0); + return 0; } } @@ -278,7 +272,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) * Query and parse _CRS to get the current IRQ assignment. */ - status = acpi_walk_resources(link->handle, METHOD_NAME__CRS, + status = acpi_walk_resources(link->device->handle, METHOD_NAME__CRS, acpi_pci_link_check_current, &irq); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _CRS")); @@ -287,7 +281,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) } if (acpi_strict && !irq) { - ACPI_ERROR((AE_INFO, "_CRS returned 0")); + printk(KERN_ERR PREFIX "_CRS returned 0\n"); result = -ENODEV; } @@ -296,7 +290,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active)); end: - return_VALUE(result); + return result; } static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) @@ -309,14 +303,13 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) } *resource; struct acpi_buffer buffer = { 0, NULL }; - ACPI_FUNCTION_TRACE("acpi_pci_link_set"); if (!link || !irq) - return_VALUE(-EINVAL); + return -EINVAL; resource = kmalloc(sizeof(*resource) + 1, GFP_ATOMIC); if (!resource) - return_VALUE(-ENOMEM); + return -ENOMEM; memset(resource, 0, sizeof(*resource) + 1); buffer.length = sizeof(*resource) + 1; @@ -357,7 +350,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) /* ignore resource_source, it's optional */ break; default: - ACPI_ERROR((AE_INFO, "Invalid Resource_type %d\n", link->irq.resource_type)); + printk(KERN_ERR PREFIX "Invalid Resource_type %d\n", link->irq.resource_type); result = -EINVAL; goto end; @@ -365,7 +358,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) resource->end.type = ACPI_RESOURCE_TYPE_END_TAG; /* Attempt to set the resource */ - status = acpi_set_current_resources(link->handle, &buffer); + status = acpi_set_current_resources(link->device->handle, &buffer); /* check for total failure */ if (ACPI_FAILURE(status)) { @@ -377,14 +370,14 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) /* Query _STA, set device->status */ result = acpi_bus_get_status(link->device); if (result) { - ACPI_ERROR((AE_INFO, "Unable to read status")); + printk(KERN_ERR PREFIX "Unable to read status\n"); goto end; } if (!link->device->status.enabled) { - ACPI_WARNING((AE_INFO, - "%s [%s] disabled and referenced, BIOS bug", + printk(KERN_WARNING PREFIX + "%s [%s] disabled and referenced, BIOS bug\n", acpi_device_name(link->device), - acpi_device_bid(link->device))); + acpi_device_bid(link->device)); } /* Query _CRS, set link->irq.active */ @@ -402,10 +395,10 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) * policy: when _CRS doesn't return what we just _SRS * assume _SRS worked and override _CRS value. */ - ACPI_WARNING((AE_INFO, - "%s [%s] BIOS reported IRQ %d, using IRQ %d", + printk(KERN_WARNING PREFIX + "%s [%s] BIOS reported IRQ %d, using IRQ %d\n", acpi_device_name(link->device), - acpi_device_bid(link->device), link->irq.active, irq)); + acpi_device_bid(link->device), link->irq.active, irq); link->irq.active = irq; } @@ -413,7 +406,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) end: kfree(resource); - return_VALUE(result); + return result; } /* -------------------------------------------------------------------------- @@ -487,7 +480,6 @@ int __init acpi_irq_penalty_init(void) struct acpi_pci_link *link = NULL; int i = 0; - ACPI_FUNCTION_TRACE("acpi_irq_penalty_init"); /* * Update penalties to facilitate IRQ balancing. @@ -496,7 +488,7 @@ int __init acpi_irq_penalty_init(void) link = list_entry(node, struct acpi_pci_link, node); if (!link) { - ACPI_ERROR((AE_INFO, "Invalid link context")); + printk(KERN_ERR PREFIX "Invalid link context\n"); continue; } @@ -524,7 +516,7 @@ int __init acpi_irq_penalty_init(void) /* Add a penalty for the SCI */ acpi_irq_penalty[acpi_fadt.sci_int] += PIRQ_PENALTY_PCI_USING; - return_VALUE(0); + return 0; } static int acpi_irq_balance; /* 0: static, 1: balance */ @@ -534,13 +526,12 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) int irq; int i; - ACPI_FUNCTION_TRACE("acpi_pci_link_allocate"); if (link->irq.initialized) { if (link->refcnt == 0) /* This means the link is disabled but initialized */ acpi_pci_link_set(link, link->irq.active); - return_VALUE(0); + return 0; } /* @@ -555,8 +546,8 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) */ if (i == link->irq.possible_count) { if (acpi_strict) - ACPI_WARNING((AE_INFO, "_CRS %d not found" - " in _PRS", link->irq.active)); + printk(KERN_WARNING PREFIX "_CRS %d not found" + " in _PRS\n", link->irq.active); link->irq.active = 0; } @@ -583,11 +574,11 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) /* Attempt to enable the link device at this IRQ. */ if (acpi_pci_link_set(link, irq)) { - ACPI_ERROR((AE_INFO, "Unable to set IRQ for %s [%s]. " - "Try pci=noacpi or acpi=off", + printk(KERN_ERR PREFIX "Unable to set IRQ for %s [%s]. " + "Try pci=noacpi or acpi=off\n", acpi_device_name(link->device), - acpi_device_bid(link->device))); - return_VALUE(-ENODEV); + acpi_device_bid(link->device)); + return -ENODEV; } else { acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING; printk(PREFIX "%s [%s] enabled at IRQ %d\n", @@ -597,7 +588,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) link->irq.initialized = 1; - return_VALUE(0); + return 0; } /* @@ -615,36 +606,35 @@ acpi_pci_link_allocate_irq(acpi_handle handle, struct acpi_device *device = NULL; struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq"); result = acpi_bus_get_device(handle, &device); if (result) { - ACPI_ERROR((AE_INFO, "Invalid link device")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Invalid link device\n"); + return -1; } link = (struct acpi_pci_link *)acpi_driver_data(device); if (!link) { - ACPI_ERROR((AE_INFO, "Invalid link context")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Invalid link context\n"); + return -1; } /* TBD: Support multiple index (IRQ) entries per Link Device */ if (index) { - ACPI_ERROR((AE_INFO, "Invalid index %d", index)); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Invalid index %d\n", index); + return -1; } mutex_lock(&acpi_link_lock); if (acpi_pci_link_allocate(link)) { mutex_unlock(&acpi_link_lock); - return_VALUE(-1); + return -1; } if (!link->irq.active) { mutex_unlock(&acpi_link_lock); - ACPI_ERROR((AE_INFO, "Link active IRQ is 0!")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Link active IRQ is 0!\n"); + return -1; } link->refcnt++; mutex_unlock(&acpi_link_lock); @@ -658,7 +648,7 @@ acpi_pci_link_allocate_irq(acpi_handle handle, ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link %s is referenced\n", acpi_device_bid(link->device))); - return_VALUE(link->irq.active); + return (link->irq.active); } /* @@ -671,25 +661,24 @@ int acpi_pci_link_free_irq(acpi_handle handle) struct acpi_pci_link *link = NULL; acpi_status result; - ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq"); result = acpi_bus_get_device(handle, &device); if (result) { - ACPI_ERROR((AE_INFO, "Invalid link device")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Invalid link device\n"); + return -1; } link = (struct acpi_pci_link *)acpi_driver_data(device); if (!link) { - ACPI_ERROR((AE_INFO, "Invalid link context")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Invalid link context\n"); + return -1; } mutex_lock(&acpi_link_lock); if (!link->irq.initialized) { mutex_unlock(&acpi_link_lock); - ACPI_ERROR((AE_INFO, "Link isn't initialized")); - return_VALUE(-1); + printk(KERN_ERR PREFIX "Link isn't initialized\n"); + return -1; } #ifdef FUTURE_USE /* @@ -708,10 +697,10 @@ int acpi_pci_link_free_irq(acpi_handle handle) acpi_device_bid(link->device))); if (link->refcnt == 0) { - acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); + acpi_ut_evaluate_object(link->device->handle, "_DIS", 0, NULL); } mutex_unlock(&acpi_link_lock); - return_VALUE(link->irq.active); + return (link->irq.active); } /* -------------------------------------------------------------------------- @@ -725,18 +714,16 @@ static int acpi_pci_link_add(struct acpi_device *device) int i = 0; int found = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_add"); if (!device) - return_VALUE(-EINVAL); + return -EINVAL; link = kmalloc(sizeof(struct acpi_pci_link), GFP_KERNEL); if (!link) - return_VALUE(-ENOMEM); + return -ENOMEM; memset(link, 0, sizeof(struct acpi_pci_link)); link->device = device; - link->handle = device->handle; strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS); acpi_driver_data(device) = link; @@ -775,61 +762,51 @@ static int acpi_pci_link_add(struct acpi_device *device) end: /* disable all links -- to be activated on use */ - acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); + acpi_ut_evaluate_object(device->handle, "_DIS", 0, NULL); mutex_unlock(&acpi_link_lock); if (result) kfree(link); - return_VALUE(result); + return result; } static int acpi_pci_link_resume(struct acpi_pci_link *link) { - ACPI_FUNCTION_TRACE("acpi_pci_link_resume"); if (link->refcnt && link->irq.active && link->irq.initialized) - return_VALUE(acpi_pci_link_set(link, link->irq.active)); + return (acpi_pci_link_set(link, link->irq.active)); else - return_VALUE(0); + return 0; } -/* - * FIXME: this is a workaround to avoid nasty warning. It will be removed - * after every device calls pci_disable_device in .resume. - */ -int acpi_in_resume; static int irqrouter_resume(struct sys_device *dev) { struct list_head *node = NULL; struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("irqrouter_resume"); /* Make sure SCI is enabled again (Apple firmware bug?) */ acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK); - acpi_in_resume = 1; list_for_each(node, &acpi_link.entries) { link = list_entry(node, struct acpi_pci_link, node); if (!link) { - ACPI_ERROR((AE_INFO, "Invalid link context")); + printk(KERN_ERR PREFIX "Invalid link context\n"); continue; } acpi_pci_link_resume(link); } - acpi_in_resume = 0; - return_VALUE(0); + return 0; } static int acpi_pci_link_remove(struct acpi_device *device, int type) { struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("acpi_pci_link_remove"); if (!device || !acpi_driver_data(device)) - return_VALUE(-EINVAL); + return -EINVAL; link = (struct acpi_pci_link *)acpi_driver_data(device); @@ -839,7 +816,7 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type) kfree(link); - return_VALUE(0); + return 0; } /* @@ -945,34 +922,32 @@ static int __init irqrouter_init_sysfs(void) { int error; - ACPI_FUNCTION_TRACE("irqrouter_init_sysfs"); if (acpi_disabled || acpi_noirq) - return_VALUE(0); + return 0; error = sysdev_class_register(&irqrouter_sysdev_class); if (!error) error = sysdev_register(&device_irqrouter); - return_VALUE(error); + return error; } device_initcall(irqrouter_init_sysfs); static int __init acpi_pci_link_init(void) { - ACPI_FUNCTION_TRACE("acpi_pci_link_init"); if (acpi_noirq) - return_VALUE(0); + return 0; acpi_link.count = 0; INIT_LIST_HEAD(&acpi_link.entries); if (acpi_bus_register_driver(&acpi_pci_link_driver) < 0) - return_VALUE(-ENODEV); + return -ENODEV; - return_VALUE(0); + return 0; } subsys_initcall(acpi_pci_link_init);