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author | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
commit | 6ab561c8aab2e4af535f09adbc6253f958536848 (patch) | |
tree | 37846adb4ea106485720d113e252d71d615c23ed /drivers/acpi/osl.c | |
parent | 4f4e8f69895c8696a4bcc751817d4b186023ac44 (diff) | |
parent | cbaa9f60d5d5c3af10f94e0d49789d5b82341a4a (diff) | |
download | linux-stable-6ab561c8aab2e4af535f09adbc6253f958536848.tar.gz linux-stable-6ab561c8aab2e4af535f09adbc6253f958536848.tar.bz2 linux-stable-6ab561c8aab2e4af535f09adbc6253f958536848.zip |
Merge branch 'topic/isa' into topic/misc
Diffstat (limited to 'drivers/acpi/osl.c')
-rw-r--r-- | drivers/acpi/osl.c | 60 |
1 files changed, 11 insertions, 49 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 78418ce4fc78..f14d3f251d26 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -191,36 +191,11 @@ acpi_status __init acpi_os_initialize(void) return AE_OK; } -static void bind_to_cpu0(struct work_struct *work) -{ - set_cpus_allowed_ptr(current, cpumask_of(0)); - kfree(work); -} - -static void bind_workqueue(struct workqueue_struct *wq) -{ - struct work_struct *work; - - work = kzalloc(sizeof(struct work_struct), GFP_KERNEL); - INIT_WORK(work, bind_to_cpu0); - queue_work(wq, work); -} - acpi_status acpi_os_initialize1(void) { - /* - * On some machines, a software-initiated SMI causes corruption unless - * the SMI runs on CPU 0. An SMI can be initiated by any AML, but - * typically it's done in GPE-related methods that are run via - * workqueues, so we can avoid the known corruption cases by binding - * the workqueues to CPU 0. - */ - kacpid_wq = create_singlethread_workqueue("kacpid"); - bind_workqueue(kacpid_wq); - kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify"); - bind_workqueue(kacpi_notify_wq); - kacpi_hotplug_wq = create_singlethread_workqueue("kacpi_hotplug"); - bind_workqueue(kacpi_hotplug_wq); + kacpid_wq = create_workqueue("kacpid"); + kacpi_notify_wq = create_workqueue("kacpi_notify"); + kacpi_hotplug_wq = create_workqueue("kacpi_hotplug"); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); @@ -766,7 +741,14 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, else INIT_WORK(&dpc->work, acpi_os_execute_deferred); - ret = queue_work(queue, &dpc->work); + /* + * On some machines, a software-initiated SMI causes corruption unless + * the SMI runs on CPU 0. An SMI can be initiated by any AML, but + * typically it's done in GPE-related methods that are run via + * workqueues, so we can avoid the known corruption cases by always + * queueing on CPU 0. + */ + ret = queue_work_on(0, queue, &dpc->work); if (!ret) { printk(KERN_ERR PREFIX @@ -1064,26 +1046,6 @@ static int __init acpi_serialize_setup(char *str) __setup("acpi_serialize", acpi_serialize_setup); -/* - * Wake and Run-Time GPES are expected to be separate. - * We disable wake-GPEs at run-time to prevent spurious - * interrupts. - * - * However, if a system exists that shares Wake and - * Run-time events on the same GPE this flag is available - * to tell Linux to keep the wake-time GPEs enabled at run-time. - */ -static int __init acpi_wake_gpes_always_on_setup(char *str) -{ - printk(KERN_INFO PREFIX "wake GPEs not disabled\n"); - - acpi_gbl_leave_wake_gpes_disabled = FALSE; - - return 1; -} - -__setup("acpi_wake_gpes_always_on", acpi_wake_gpes_always_on_setup); - /* Check of resource interference between native drivers and ACPI * OperationRegions (SystemIO and System Memory only). * IO ports and memory declared in ACPI might be used by the ACPI subsystem |