xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Kods Problēmas Izmaiņu pieprasījumi Darbības Pakotnes Projekti Laidieni Vikivietne Aktivitāte

ACPICA: Source restructuring: split large files into 8 new files.

Pārlūkot izejas kodu 
Created logical splits for eight new files. Improves modularity
and configurability.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Šī revīzija ir iekļauta:
Bob Moore
2013-01-11 13:08:51 +01:00
revīziju iesūtīja Rafael J. Wysocki
vecāks 4f84291668
revīzija 42f8fb75c4
21 mainīti faili ar 3503 papildinājumiem un 3111 dzēšanām
Lejupielādēt ielāpa failu Lejupielādēt izmaiņu failu Izvērst visus failus Savērst visus failus

598
drivers/acpi/acpica/evregion.c
Parādīt failu

@@ -1,6 +1,6 @@
/******************************************************************************
*
* Module Name: evregion - ACPI address_space (op_region) handler dispatch
* Module Name: evregion - Operation Region support
*
*****************************************************************************/
@@ -50,10 +50,9 @@
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evregion")
extern u8 acpi_gbl_default_address_spaces[];
/* Local prototypes */
static u8
acpi_ev_has_default_handler(struct acpi_namespace_node *node,
acpi_adr_space_type space_id);
static void acpi_ev_orphan_ec_reg_method(void);
@@ -61,135 +60,6 @@ static acpi_status
acpi_ev_reg_run(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
static acpi_status
acpi_ev_install_handler(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
/* These are the address spaces that will get default handlers */
#define ACPI_NUM_DEFAULT_SPACES 4
static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
ACPI_ADR_SPACE_SYSTEM_MEMORY,
ACPI_ADR_SPACE_SYSTEM_IO,
ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_ADR_SPACE_DATA_TABLE
};
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_region_handlers
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Installs the core subsystem default address space handlers.
*
******************************************************************************/
acpi_status acpi_ev_install_region_handlers(void)
{
acpi_status status;
u32 i;
ACPI_FUNCTION_TRACE(ev_install_region_handlers);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/*
* All address spaces (PCI Config, EC, SMBus) are scope dependent and
* registration must occur for a specific device.
*
* In the case of the system memory and IO address spaces there is
* currently no device associated with the address space. For these we
* use the root.
*
* We install the default PCI config space handler at the root so that
* this space is immediately available even though the we have not
* enumerated all the PCI Root Buses yet. This is to conform to the ACPI
* specification which states that the PCI config space must be always
* available -- even though we are nowhere near ready to find the PCI root
* buses at this point.
*
* NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
* has already been installed (via acpi_install_address_space_handler).
* Similar for AE_SAME_HANDLER.
*/
for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
status = acpi_ev_install_space_handler(acpi_gbl_root_node,
acpi_gbl_default_address_spaces
[i],
ACPI_DEFAULT_HANDLER,
NULL, NULL);
switch (status) {
case AE_OK:
case AE_SAME_HANDLER:
case AE_ALREADY_EXISTS:
/* These exceptions are all OK */
status = AE_OK;
break;
default:
goto unlock_and_exit;
}
}
unlock_and_exit:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_has_default_handler
*
* PARAMETERS: node - Namespace node for the device
* space_id - The address space ID
*
* RETURN: TRUE if default handler is installed, FALSE otherwise
*
* DESCRIPTION: Check if the default handler is installed for the requested
* space ID.
*
******************************************************************************/
static u8
acpi_ev_has_default_handler(struct acpi_namespace_node *node,
acpi_adr_space_type space_id)
{
union acpi_operand_object *obj_desc;
union acpi_operand_object *handler_obj;
/* Must have an existing internal object */
obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
handler_obj = obj_desc->device.handler;
/* Walk the linked list of handlers for this object */
while (handler_obj) {
if (handler_obj->address_space.space_id == space_id) {
if (handler_obj->address_space.handler_flags &
ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
return (TRUE);
}
}
handler_obj = handler_obj->address_space.next;
}
}
return (FALSE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_initialize_op_regions
@@ -239,91 +109,6 @@ acpi_status acpi_ev_initialize_op_regions(void)
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_execute_reg_method
*
* PARAMETERS: region_obj - Region object
* function - Passed to _REG: On (1) or Off (0)
*
* RETURN: Status
*
* DESCRIPTION: Execute _REG method for a region
*
******************************************************************************/
acpi_status
acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
{
struct acpi_evaluate_info *info;
union acpi_operand_object *args[3];
union acpi_operand_object *region_obj2;
acpi_status status;
ACPI_FUNCTION_TRACE(ev_execute_reg_method);
region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
return_ACPI_STATUS(AE_NOT_EXIST);
}
if (region_obj2->extra.method_REG == NULL) {
return_ACPI_STATUS(AE_OK);
}
/* Allocate and initialize the evaluation information block */
info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
if (!info) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
info->prefix_node = region_obj2->extra.method_REG;
info->pathname = NULL;
info->parameters = args;
info->flags = ACPI_IGNORE_RETURN_VALUE;
/*
* The _REG method has two arguments:
*
* arg0 - Integer:
* Operation region space ID Same value as region_obj->Region.space_id
*
* arg1 - Integer:
* connection status 1 for connecting the handler, 0 for disconnecting
* the handler (Passed as a parameter)
*/
args[0] =
acpi_ut_create_integer_object((u64) region_obj->region.space_id);
if (!args[0]) {
status = AE_NO_MEMORY;
goto cleanup1;
}
args[1] = acpi_ut_create_integer_object((u64) function);
if (!args[1]) {
status = AE_NO_MEMORY;
goto cleanup2;
}
args[2] = NULL; /* Terminate list */
/* Execute the method, no return value */
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
(ACPI_TYPE_METHOD, info->prefix_node, NULL));
status = acpi_ns_evaluate(info);
acpi_ut_remove_reference(args[1]);
cleanup2:
acpi_ut_remove_reference(args[0]);
cleanup1:
ACPI_FREE(info);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_address_space_dispatch
@@ -709,351 +494,86 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_handler
* FUNCTION: acpi_ev_execute_reg_method
*
* PARAMETERS: walk_namespace callback
*
* DESCRIPTION: This routine installs an address handler into objects that are
* of type Region or Device.
*
* If the Object is a Device, and the device has a handler of
* the same type then the search is terminated in that branch.
*
* This is because the existing handler is closer in proximity
* to any more regions than the one we are trying to install.
*
******************************************************************************/
static acpi_status
acpi_ev_install_handler(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
union acpi_operand_object *handler_obj;
union acpi_operand_object *next_handler_obj;
union acpi_operand_object *obj_desc;
struct acpi_namespace_node *node;
acpi_status status;
ACPI_FUNCTION_NAME(ev_install_handler);
handler_obj = (union acpi_operand_object *)context;
/* Parameter validation */
if (!handler_obj) {
return (AE_OK);
}
/* Convert and validate the device handle */
node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
/*
* We only care about regions and objects that are allowed to have
* address space handlers
*/
if ((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
return (AE_OK);
}
/* Check for an existing internal object */
obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
/* No object, just exit */
return (AE_OK);
}
/* Devices are handled different than regions */
if (obj_desc->common.type == ACPI_TYPE_DEVICE) {
/* Check if this Device already has a handler for this address space */
next_handler_obj = obj_desc->device.handler;
while (next_handler_obj) {
/* Found a handler, is it for the same address space? */
if (next_handler_obj->address_space.space_id ==
handler_obj->address_space.space_id) {
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Found handler for region [%s] in device %p(%p) "
"handler %p\n",
acpi_ut_get_region_name
(handler_obj->address_space.
space_id), obj_desc,
next_handler_obj,
handler_obj));
/*
* Since the object we found it on was a device, then it
* means that someone has already installed a handler for
* the branch of the namespace from this device on. Just
* bail out telling the walk routine to not traverse this
* branch. This preserves the scoping rule for handlers.
*/
return (AE_CTRL_DEPTH);
}
/* Walk the linked list of handlers attached to this device */
next_handler_obj = next_handler_obj->address_space.next;
}
/*
* As long as the device didn't have a handler for this space we
* don't care about it. We just ignore it and proceed.
*/
return (AE_OK);
}
/* Object is a Region */
if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
/* This region is for a different address space, just ignore it */
return (AE_OK);
}
/*
* Now we have a region and it is for the handler's address space type.
*
* First disconnect region for any previous handler (if any)
*/
acpi_ev_detach_region(obj_desc, FALSE);
/* Connect the region to the new handler */
status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
return (status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_space_handler
*
* PARAMETERS: node - Namespace node for the device
* space_id - The address space ID
* handler - Address of the handler
* setup - Address of the setup function
* context - Value passed to the handler on each access
* PARAMETERS: region_obj - Region object
* function - Passed to _REG: On (1) or Off (0)
*
* RETURN: Status
*
* DESCRIPTION: Install a handler for all op_regions of a given space_id.
* Assumes namespace is locked
* DESCRIPTION: Execute _REG method for a region
*
******************************************************************************/
acpi_status
acpi_ev_install_space_handler(struct acpi_namespace_node * node,
acpi_adr_space_type space_id,
acpi_adr_space_handler handler,
acpi_adr_space_setup setup, void *context)
acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
{
union acpi_operand_object *obj_desc;
union acpi_operand_object *handler_obj;
struct acpi_evaluate_info *info;
union acpi_operand_object *args[3];
union acpi_operand_object *region_obj2;
acpi_status status;
acpi_object_type type;
u8 flags = 0;
ACPI_FUNCTION_TRACE(ev_install_space_handler);
ACPI_FUNCTION_TRACE(ev_execute_reg_method);
region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
return_ACPI_STATUS(AE_NOT_EXIST);
}
if (region_obj2->extra.method_REG == NULL) {
return_ACPI_STATUS(AE_OK);
}
/* Allocate and initialize the evaluation information block */
info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
if (!info) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
info->prefix_node = region_obj2->extra.method_REG;
info->pathname = NULL;
info->parameters = args;
info->flags = ACPI_IGNORE_RETURN_VALUE;
/*
* This registration is valid for only the types below and the root. This
* is where the default handlers get placed.
*/
if ((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_PROCESSOR) &&
(node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
if (handler == ACPI_DEFAULT_HANDLER) {
flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
switch (space_id) {
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
handler = acpi_ex_system_memory_space_handler;
setup = acpi_ev_system_memory_region_setup;
break;
case ACPI_ADR_SPACE_SYSTEM_IO:
handler = acpi_ex_system_io_space_handler;
setup = acpi_ev_io_space_region_setup;
break;
case ACPI_ADR_SPACE_PCI_CONFIG:
handler = acpi_ex_pci_config_space_handler;
setup = acpi_ev_pci_config_region_setup;
break;
case ACPI_ADR_SPACE_CMOS:
handler = acpi_ex_cmos_space_handler;
setup = acpi_ev_cmos_region_setup;
break;
case ACPI_ADR_SPACE_PCI_BAR_TARGET:
handler = acpi_ex_pci_bar_space_handler;
setup = acpi_ev_pci_bar_region_setup;
break;
case ACPI_ADR_SPACE_DATA_TABLE:
handler = acpi_ex_data_table_space_handler;
setup = NULL;
break;
default:
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
}
/* If the caller hasn't specified a setup routine, use the default */
if (!setup) {
setup = acpi_ev_default_region_setup;
}
/* Check for an existing internal object */
obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
/*
* The attached device object already exists. Make sure the handler
* is not already installed.
*/
handler_obj = obj_desc->device.handler;
/* Walk the handler list for this device */
while (handler_obj) {
/* Same space_id indicates a handler already installed */
if (handler_obj->address_space.space_id == space_id) {
if (handler_obj->address_space.handler ==
handler) {
/*
* It is (relatively) OK to attempt to install the SAME
* handler twice. This can easily happen with the
* PCI_Config space.
*/
status = AE_SAME_HANDLER;
goto unlock_and_exit;
} else {
/* A handler is already installed */
status = AE_ALREADY_EXISTS;
}
goto unlock_and_exit;
}
/* Walk the linked list of handlers */
handler_obj = handler_obj->address_space.next;
}
} else {
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Creating object on Device %p while installing handler\n",
node));
/* obj_desc does not exist, create one */
if (node->type == ACPI_TYPE_ANY) {
type = ACPI_TYPE_DEVICE;
} else {
type = node->type;
}
obj_desc = acpi_ut_create_internal_object(type);
if (!obj_desc) {
status = AE_NO_MEMORY;
goto unlock_and_exit;
}
/* Init new descriptor */
obj_desc->common.type = (u8) type;
/* Attach the new object to the Node */
status = acpi_ns_attach_object(node, obj_desc, type);
/* Remove local reference to the object */
acpi_ut_remove_reference(obj_desc);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
}
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
acpi_ut_get_region_name(space_id), space_id,
acpi_ut_get_node_name(node), node, obj_desc));
/*
* Install the handler
* The _REG method has two arguments:
*
* At this point there is no existing handler. Just allocate the object
* for the handler and link it into the list.
* arg0 - Integer:
* Operation region space ID Same value as region_obj->Region.space_id
*
* arg1 - Integer:
* connection status 1 for connecting the handler, 0 for disconnecting
* the handler (Passed as a parameter)
*/
handler_obj =
acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
if (!handler_obj) {
args[0] =
acpi_ut_create_integer_object((u64)region_obj->region.space_id);
if (!args[0]) {
status = AE_NO_MEMORY;
goto unlock_and_exit;
goto cleanup1;
}
/* Init handler obj */
args[1] = acpi_ut_create_integer_object((u64)function);
if (!args[1]) {
status = AE_NO_MEMORY;
goto cleanup2;
}
handler_obj->address_space.space_id = (u8) space_id;
handler_obj->address_space.handler_flags = flags;
handler_obj->address_space.region_list = NULL;
handler_obj->address_space.node = node;
handler_obj->address_space.handler = handler;
handler_obj->address_space.context = context;
handler_obj->address_space.setup = setup;
args[2] = NULL; /* Terminate list */
/* Install at head of Device.address_space list */
/* Execute the method, no return value */
handler_obj->address_space.next = obj_desc->device.handler;
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
(ACPI_TYPE_METHOD, info->prefix_node, NULL));
/*
* The Device object is the first reference on the handler_obj.
* Each region that uses the handler adds a reference.
*/
obj_desc->device.handler = handler_obj;
status = acpi_ns_evaluate(info);
acpi_ut_remove_reference(args[1]);
/*
* Walk the namespace finding all of the regions this
* handler will manage.
*
* Start at the device and search the branch toward
* the leaf nodes until either the leaf is encountered or
* a device is detected that has an address handler of the
* same type.
*
* In either case, back up and search down the remainder
* of the branch
*/
status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
ACPI_NS_WALK_UNLOCK,
acpi_ev_install_handler, NULL,
handler_obj, NULL);
cleanup2:
acpi_ut_remove_reference(args[0]);
unlock_and_exit:
cleanup1:
ACPI_FREE(info);
return_ACPI_STATUS(status);
}