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Merge branch 'acpi-ost'

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* acpi-ost:
  ACPI: Drop acpi_evaluate_hotplug_ost() and ACPI_HOTPLUG_OST
  ACPI: use device name LNXSYBUS.xx for ACPI \_SB and \_TZ objects
  ACPI / processor: use acpi_evaluate_ost() to replace open-coded version
  ACPI / PAD / xen: use acpi_evaluate_ost() to replace open-coded version
  ACPI / PAD: use acpi_evaluate_ost() to replace open-coded version
  ACPI: rename acpi_evaluate_hotplug_ost() to acpi_evaluate_ost()
This commit is contained in:
Rafael J. Wysocki 2014-03-17 13:48:18 +01:00
commit 2eb060975d
9 changed files with 48 additions and 74 deletions
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24
drivers/acpi/acpi_pad.c
View File

@ -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, &param);
mutex_unlock(&isolated_cpus_lock);
}

4
drivers/acpi/bus.c
View File

@ -311,9 +311,7 @@ static void acpi_bus_osc_support(void)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
#endif
#ifdef ACPI_HOTPLUG_OST
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
#endif
if (!ghes_disable)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;
@ -410,7 +408,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
return;
err:
acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL);
acpi_evaluate_ost(handle, type, ost_code, NULL);
}
/* --------------------------------------------------------------------------

14
drivers/acpi/processor_perflib.c
View File

@ -156,17 +156,9 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
*/
static void acpi_processor_ppc_ost(acpi_handle handle, int status)
{
union acpi_object params[2] = {
{.type = ACPI_TYPE_INTEGER,},
{.type = ACPI_TYPE_INTEGER,},
};
struct acpi_object_list arg_list = {2, params};
if (acpi_has_method(handle, "_OST")) {
params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE;
params[1].integer.value = status;
acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
}
if (acpi_has_method(handle, "_OST"))
acpi_evaluate_ost(handle, ACPI_PROCESSOR_NOTIFY_PERFORMANCE,
status, NULL);
}
int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag)

30
drivers/acpi/scan.c
View File

@ -474,8 +474,8 @@ static int acpi_generic_hotplug_event(struct acpi_device *adev, u32 type)
dev_info(&adev->dev, "Eject disabled\n");
return -EPERM;
}
acpi_evaluate_hotplug_ost(adev->handle, ACPI_NOTIFY_EJECT_REQUEST,
ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
acpi_evaluate_ost(adev->handle, ACPI_NOTIFY_EJECT_REQUEST,
ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
return acpi_scan_hot_remove(adev);
}
return -EINVAL;
@ -524,7 +524,7 @@ void acpi_device_hotplug(struct acpi_device *adev, u32 src)
ost_code = ACPI_OST_SC_SUCCESS;
err_out:
acpi_evaluate_hotplug_ost(adev->handle, src, ost_code, NULL);
acpi_evaluate_ost(adev->handle, src, ost_code, NULL);
out:
acpi_bus_put_acpi_device(adev);
@ -583,8 +583,8 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
return count;
put_device(&acpi_device->dev);
acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
}
@ -1757,6 +1757,20 @@ static bool acpi_ibm_smbus_match(acpi_handle handle)
return false;
}
static bool acpi_object_is_system_bus(acpi_handle handle)
{
acpi_handle tmp;
if (ACPI_SUCCESS(acpi_get_handle(NULL, "\\_SB", &tmp)) &&
tmp == handle)
return true;
if (ACPI_SUCCESS(acpi_get_handle(NULL, "\\_TZ", &tmp)) &&
tmp == handle)
return true;
return false;
}
static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
int device_type)
{
@ -1808,8 +1822,10 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
acpi_add_id(pnp, ACPI_DOCK_HID);
else if (acpi_ibm_smbus_match(handle))
acpi_add_id(pnp, ACPI_SMBUS_IBM_HID);
else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) {
acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
else if (list_empty(&pnp->ids) &&
acpi_object_is_system_bus(handle)) {
/* \_SB, \_TZ, LNXSYBUS */
acpi_add_id(pnp, ACPI_BUS_HID);
strcpy(pnp->device_name, ACPI_BUS_DEVICE_NAME);
strcpy(pnp->device_class, ACPI_BUS_CLASS);
}

16
drivers/acpi/utils.c
View File

@ -422,7 +422,7 @@ out:
EXPORT_SYMBOL(acpi_get_physical_device_location);
/**
* acpi_evaluate_hotplug_ost: Evaluate _OST for hotplug operations
* acpi_evaluate_ost: Evaluate _OST for hotplug operations
* @handle: ACPI device handle
* @source_event: source event code
* @status_code: status code
@ -433,17 +433,15 @@ EXPORT_SYMBOL(acpi_get_physical_device_location);
* When the platform does not support _OST, this function has no effect.
*/
acpi_status
acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
u32 status_code, struct acpi_buffer *status_buf)
acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
struct acpi_buffer *status_buf)
{
#ifdef ACPI_HOTPLUG_OST
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};
acpi_status status;
params[0].integer.value = source_event;
params[1].integer.value = status_code;
@ -455,13 +453,9 @@ acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
params[2].buffer.length = 0;
}
status = acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
return status;
#else
return AE_OK;
#endif
return acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
}
EXPORT_SYMBOL(acpi_evaluate_hotplug_ost);
EXPORT_SYMBOL(acpi_evaluate_ost);
/**
* acpi_handle_printk: Print message with ACPI prefix and object path

2
drivers/xen/xen-acpi-cpuhotplug.c
View File

@ -313,7 +313,7 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
goto out;
}
(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
(void) acpi_evaluate_ost(handle, event, ost_code, NULL);
out:
acpi_scan_lock_release();

2
drivers/xen/xen-acpi-memhotplug.c
View File

@ -285,7 +285,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
return;
}
(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
(void) acpi_evaluate_ost(handle, event, ost_code, NULL);
return;
}

26
drivers/xen/xen-acpi-pad.c
View File

@ -77,27 +77,14 @@ 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_nums)
{
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_nums;
acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
}
static void acpi_pad_handle_notify(acpi_handle handle)
{
int idle_nums;
struct acpi_buffer param = {
.length = 4,
.pointer = (void *)&idle_nums,
};
mutex_lock(&xen_cpu_lock);
idle_nums = acpi_pad_pur(handle);
@ -109,7 +96,8 @@ static void acpi_pad_handle_notify(acpi_handle handle)
idle_nums = xen_acpi_pad_idle_cpus(idle_nums)
?: xen_acpi_pad_idle_cpus_num();
if (idle_nums >= 0)
acpi_pad_ost(handle, 0, idle_nums);
acpi_evaluate_ost(handle, ACPI_PROCESSOR_AGGREGATOR_NOTIFY,
0, &param);
mutex_unlock(&xen_cpu_lock);
}

4
include/acpi/acpi_bus.h
View File

@ -49,8 +49,8 @@ acpi_evaluate_reference(acpi_handle handle,
struct acpi_object_list *arguments,
struct acpi_handle_list *list);
acpi_status
acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
u32 status_code, struct acpi_buffer *status_buf);
acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
struct acpi_buffer *status_buf);
acpi_status
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);