diff options
author | Jiang Liu <jiang.liu@linux.intel.com> | 2014-02-19 10:02:16 +0400 |
---|---|---|
committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-21 03:27:47 +0400 |
commit | 8b296d9412a087c1e2191d3e7448c76d9498714f (patch) | |
tree | daafec8c5469e60bbe7e1472c37967851e5dd270 /drivers/acpi/acpi_pad.c | |
parent | 05730c1952787faa422ea2898634a1f9cdb61161 (diff) | |
download | linux-8b296d9412a087c1e2191d3e7448c76d9498714f.tar.xz |
ACPI / PAD: use acpi_evaluate_ost() to replace open-coded version
Use public function acpi_evaluate_ost() to replace open-coded
version of evaluating ACPI _OST method.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_pad.c')
-rw-r--r-- | drivers/acpi/acpi_pad.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index df96a0fe4890..37d73024b82e 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -408,28 +408,14 @@ static int acpi_pad_pur(acpi_handle handle) return num; } -/* Notify firmware how many CPUs are idle */ -static void acpi_pad_ost(acpi_handle handle, int stat, - uint32_t idle_cpus) -{ - union acpi_object params[3] = { - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_BUFFER,}, - }; - struct acpi_object_list arg_list = {3, params}; - - params[0].integer.value = ACPI_PROCESSOR_AGGREGATOR_NOTIFY; - params[1].integer.value = stat; - params[2].buffer.length = 4; - params[2].buffer.pointer = (void *)&idle_cpus; - acpi_evaluate_object(handle, "_OST", &arg_list, NULL); -} - static void acpi_pad_handle_notify(acpi_handle handle) { int num_cpus; uint32_t idle_cpus; + struct acpi_buffer param = { + .length = 4, + .pointer = (void *)&idle_cpus, + }; mutex_lock(&isolated_cpus_lock); num_cpus = acpi_pad_pur(handle); @@ -439,7 +425,7 @@ static void acpi_pad_handle_notify(acpi_handle handle) } acpi_pad_idle_cpus(num_cpus); idle_cpus = acpi_pad_idle_cpus_num(); - acpi_pad_ost(handle, 0, idle_cpus); + acpi_evaluate_ost(handle, ACPI_PROCESSOR_AGGREGATOR_NOTIFY, 0, ¶m); mutex_unlock(&isolated_cpus_lock); } |