diff options
| author | Lin Ming <ming.m.lin@intel.com> | 2011-03-23 17:26:34 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-03-25 04:32:33 -0400 |
| commit | 9f63b88bd7a1ac1afbb4358772a39abaeddbdd13 (patch) | |
| tree | 1b95ed2997b6a02305add78f20805fee5b3fb269 | |
| parent | d8d75b0ee6dbd65c8a2189aef50a03667d81c937 (diff) | |
ACPI: osl, add acpi_os_create_lock interface
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/osl.c | 33 | ||||
| -rw-r--r-- | include/acpi/acpiosxf.h | 3 |
2 files changed, 28 insertions, 8 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index c90c76aa7f8..cf750a7a952 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -883,14 +883,6 @@ void acpi_os_wait_events_complete(void *context) EXPORT_SYMBOL(acpi_os_wait_events_complete); -/* - * Deallocate the memory for a spinlock. - */ -void acpi_os_delete_lock(acpi_spinlock handle) -{ - return; -} - acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) { @@ -1322,6 +1314,31 @@ int acpi_resources_are_enforced(void) EXPORT_SYMBOL(acpi_resources_are_enforced); /* + * Create and initialize a spinlock. + */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle) +{ + spinlock_t *lock; + + lock = ACPI_ALLOCATE(sizeof(spinlock_t)); + if (!lock) + return AE_NO_MEMORY; + spin_lock_init(lock); + *out_handle = lock; + + return AE_OK; +} + +/* + * Deallocate the memory for a spinlock. + */ +void acpi_os_delete_lock(acpi_spinlock handle) +{ + ACPI_FREE(handle); +} + +/* * Acquire a spinlock. * * handle is a pointer to the spinlock_t. diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index a3252a5ead6..a756bc8d866 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -98,6 +98,9 @@ acpi_os_table_override(struct acpi_table_header *existing_table, /* * Spinlock primitives */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle); + void acpi_os_delete_lock(acpi_spinlock handle); acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle); |