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path: root/drivers/acpi/events/evrgnini.c
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Diffstat (limited to 'drivers/acpi/events/evrgnini.c')
-rw-r--r--drivers/acpi/events/evrgnini.c315
1 files changed, 155 insertions, 160 deletions
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 95bc09c73a6..a1bd2da27c4 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -41,14 +41,12 @@
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acevents.h>
#include <acpi/acnamesp.h>
#define _COMPONENT ACPI_EVENTS
- ACPI_MODULE_NAME ("evrgnini")
-
+ACPI_MODULE_NAME("evrgnini")
/*******************************************************************************
*
@@ -64,34 +62,31 @@
* DESCRIPTION: Setup a system_memory operation region
*
******************************************************************************/
-
acpi_status
-acpi_ev_system_memory_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_system_memory_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- union acpi_operand_object *region_desc = (union acpi_operand_object *) handle;
- struct acpi_mem_space_context *local_region_context;
-
-
- ACPI_FUNCTION_TRACE ("ev_system_memory_region_setup");
+ union acpi_operand_object *region_desc =
+ (union acpi_operand_object *)handle;
+ struct acpi_mem_space_context *local_region_context;
+ ACPI_FUNCTION_TRACE("ev_system_memory_region_setup");
if (function == ACPI_REGION_DEACTIVATE) {
if (*region_context) {
- ACPI_MEM_FREE (*region_context);
+ ACPI_MEM_FREE(*region_context);
*region_context = NULL;
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
/* Create a new context */
- local_region_context = ACPI_MEM_CALLOCATE (sizeof (struct acpi_mem_space_context));
+ local_region_context =
+ ACPI_MEM_CALLOCATE(sizeof(struct acpi_mem_space_context));
if (!(local_region_context)) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Save the region length and address for use in the handler */
@@ -100,10 +95,9 @@ acpi_ev_system_memory_region_setup (
local_region_context->address = region_desc->region.address;
*region_context = local_region_context;
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_io_space_region_setup
@@ -120,26 +114,21 @@ acpi_ev_system_memory_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_io_space_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_io_space_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- ACPI_FUNCTION_TRACE ("ev_io_space_region_setup");
-
+ ACPI_FUNCTION_TRACE("ev_io_space_region_setup");
if (function == ACPI_REGION_DEACTIVATE) {
*region_context = NULL;
- }
- else {
+ } else {
*region_context = handler_context;
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_pci_config_region_setup
@@ -158,24 +147,21 @@ acpi_ev_io_space_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_pci_config_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_pci_config_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- acpi_status status = AE_OK;
- acpi_integer pci_value;
- struct acpi_pci_id *pci_id = *region_context;
- union acpi_operand_object *handler_obj;
- struct acpi_namespace_node *parent_node;
- struct acpi_namespace_node *pci_root_node;
- union acpi_operand_object *region_obj = (union acpi_operand_object *) handle;
- struct acpi_device_id object_hID;
-
-
- ACPI_FUNCTION_TRACE ("ev_pci_config_region_setup");
-
+ acpi_status status = AE_OK;
+ acpi_integer pci_value;
+ struct acpi_pci_id *pci_id = *region_context;
+ union acpi_operand_object *handler_obj;
+ struct acpi_namespace_node *parent_node;
+ struct acpi_namespace_node *pci_root_node;
+ union acpi_operand_object *region_obj =
+ (union acpi_operand_object *)handle;
+ struct acpi_device_id object_hID;
+
+ ACPI_FUNCTION_TRACE("ev_pci_config_region_setup");
handler_obj = region_obj->region.handler;
if (!handler_obj) {
@@ -183,20 +169,21 @@ acpi_ev_pci_config_region_setup (
* No installed handler. This shouldn't happen because the dispatch
* routine checks before we get here, but we check again just in case.
*/
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Attempting to init a region %p, with no handler\n", region_obj));
- return_ACPI_STATUS (AE_NOT_EXIST);
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Attempting to init a region %p, with no handler\n",
+ region_obj));
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
*region_context = NULL;
if (function == ACPI_REGION_DEACTIVATE) {
if (pci_id) {
- ACPI_MEM_FREE (pci_id);
+ ACPI_MEM_FREE(pci_id);
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
- parent_node = acpi_ns_get_parent_node (region_obj->region.node);
+ parent_node = acpi_ns_get_parent_node(region_obj->region.node);
/*
* Get the _SEG and _BBN values from the device upon which the handler
@@ -216,18 +203,28 @@ acpi_ev_pci_config_region_setup (
pci_root_node = parent_node;
while (pci_root_node != acpi_gbl_root_node) {
- status = acpi_ut_execute_HID (pci_root_node, &object_hID);
- if (ACPI_SUCCESS (status)) {
- /* Got a valid _HID, check if this is a PCI root */
-
- if (!(ACPI_STRNCMP (object_hID.value, PCI_ROOT_HID_STRING,
- sizeof (PCI_ROOT_HID_STRING)))) {
+ status =
+ acpi_ut_execute_HID(pci_root_node, &object_hID);
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * Got a valid _HID string, check if this is a PCI root.
+ * New for ACPI 3.0: check for a PCI Express root also.
+ */
+ if (!
+ (ACPI_STRNCMP
+ (object_hID.value, PCI_ROOT_HID_STRING,
+ sizeof(PCI_ROOT_HID_STRING))
+ ||
+ !(ACPI_STRNCMP
+ (object_hID.value,
+ PCI_EXPRESS_ROOT_HID_STRING,
+ sizeof(PCI_EXPRESS_ROOT_HID_STRING)))))
+ {
/* Install a handler for this PCI root bridge */
- status = acpi_install_address_space_handler ((acpi_handle) pci_root_node,
- ACPI_ADR_SPACE_PCI_CONFIG,
- ACPI_DEFAULT_HANDLER, NULL, NULL);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
+ if (ACPI_FAILURE(status)) {
if (status == AE_SAME_HANDLER) {
/*
* It is OK if the handler is already installed on the root
@@ -235,23 +232,19 @@ acpi_ev_pci_config_region_setup (
* new PCI_Config operation region, however.
*/
status = AE_OK;
- }
- else {
- ACPI_REPORT_ERROR ((
- "Could not install pci_config handler for Root Bridge %4.4s, %s\n",
- acpi_ut_get_node_name (pci_root_node), acpi_format_exception (status)));
+ } else {
+ ACPI_REPORT_ERROR(("Could not install pci_config handler for Root Bridge %4.4s, %s\n", acpi_ut_get_node_name(pci_root_node), acpi_format_exception(status)));
}
}
break;
}
}
- pci_root_node = acpi_ns_get_parent_node (pci_root_node);
+ pci_root_node = acpi_ns_get_parent_node(pci_root_node);
}
/* PCI root bridge not found, use namespace root node */
- }
- else {
+ } else {
pci_root_node = handler_obj->address_space.node;
}
@@ -260,14 +253,14 @@ acpi_ev_pci_config_region_setup (
* (install_address_space_handler could have initialized it)
*/
if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
/* Region is still not initialized. Create a new context */
- pci_id = ACPI_MEM_CALLOCATE (sizeof (struct acpi_pci_id));
+ pci_id = ACPI_MEM_CALLOCATE(sizeof(struct acpi_pci_id));
if (!pci_id) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ return_ACPI_STATUS(AE_NO_MEMORY);
}
/*
@@ -279,40 +272,45 @@ acpi_ev_pci_config_region_setup (
* Get the PCI device and function numbers from the _ADR object
* contained in the parent's scope.
*/
- status = acpi_ut_evaluate_numeric_object (METHOD_NAME__ADR, parent_node, &pci_value);
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, parent_node,
+ &pci_value);
/*
* The default is zero, and since the allocation above zeroed
* the data, just do nothing on failure.
*/
- if (ACPI_SUCCESS (status)) {
- pci_id->device = ACPI_HIWORD (ACPI_LODWORD (pci_value));
- pci_id->function = ACPI_LOWORD (ACPI_LODWORD (pci_value));
+ if (ACPI_SUCCESS(status)) {
+ pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value));
+ pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value));
}
/* The PCI segment number comes from the _SEG method */
- status = acpi_ut_evaluate_numeric_object (METHOD_NAME__SEG, pci_root_node, &pci_value);
- if (ACPI_SUCCESS (status)) {
- pci_id->segment = ACPI_LOWORD (pci_value);
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__SEG, pci_root_node,
+ &pci_value);
+ if (ACPI_SUCCESS(status)) {
+ pci_id->segment = ACPI_LOWORD(pci_value);
}
/* The PCI bus number comes from the _BBN method */
- status = acpi_ut_evaluate_numeric_object (METHOD_NAME__BBN, pci_root_node, &pci_value);
- if (ACPI_SUCCESS (status)) {
- pci_id->bus = ACPI_LOWORD (pci_value);
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__BBN, pci_root_node,
+ &pci_value);
+ if (ACPI_SUCCESS(status)) {
+ pci_id->bus = ACPI_LOWORD(pci_value);
}
/* Complete this device's pci_id */
- acpi_os_derive_pci_id (pci_root_node, region_obj->region.node, &pci_id);
+ acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id);
*region_context = pci_id;
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_pci_bar_region_setup
@@ -331,19 +329,15 @@ acpi_ev_pci_config_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_pci_bar_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_pci_bar_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- ACPI_FUNCTION_TRACE ("ev_pci_bar_region_setup");
-
+ ACPI_FUNCTION_TRACE("ev_pci_bar_region_setup");
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_cmos_region_setup
@@ -362,19 +356,15 @@ acpi_ev_pci_bar_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_cmos_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_cmos_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- ACPI_FUNCTION_TRACE ("ev_cmos_region_setup");
-
+ ACPI_FUNCTION_TRACE("ev_cmos_region_setup");
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_default_region_setup
@@ -391,26 +381,21 @@ acpi_ev_cmos_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_default_region_setup (
- acpi_handle handle,
- u32 function,
- void *handler_context,
- void **region_context)
+acpi_ev_default_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
{
- ACPI_FUNCTION_TRACE ("ev_default_region_setup");
-
+ ACPI_FUNCTION_TRACE("ev_default_region_setup");
if (function == ACPI_REGION_DEACTIVATE) {
*region_context = NULL;
- }
- else {
+ } else {
*region_context = handler_context;
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_initialize_region
@@ -434,37 +419,34 @@ acpi_ev_default_region_setup (
******************************************************************************/
acpi_status
-acpi_ev_initialize_region (
- union acpi_operand_object *region_obj,
- u8 acpi_ns_locked)
+acpi_ev_initialize_region(union acpi_operand_object *region_obj,
+ u8 acpi_ns_locked)
{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *obj_desc;
- acpi_adr_space_type space_id;
- struct acpi_namespace_node *node;
- acpi_status status;
- struct acpi_namespace_node *method_node;
- acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
- union acpi_operand_object *region_obj2;
-
-
- ACPI_FUNCTION_TRACE_U32 ("ev_initialize_region", acpi_ns_locked);
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *obj_desc;
+ acpi_adr_space_type space_id;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ struct acpi_namespace_node *method_node;
+ acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
+ union acpi_operand_object *region_obj2;
+ ACPI_FUNCTION_TRACE_U32("ev_initialize_region", acpi_ns_locked);
if (!region_obj) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
- region_obj2 = acpi_ns_get_secondary_object (region_obj);
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
- return_ACPI_STATUS (AE_NOT_EXIST);
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
- node = acpi_ns_get_parent_node (region_obj->region.node);
+ node = acpi_ns_get_parent_node(region_obj->region.node);
space_id = region_obj->region.space_id;
/* Setup defaults */
@@ -476,9 +458,9 @@ acpi_ev_initialize_region (
/* Find any "_REG" method associated with this region definition */
- status = acpi_ns_search_node (*reg_name_ptr, node,
- ACPI_TYPE_METHOD, &method_node);
- if (ACPI_SUCCESS (status)) {
+ status = acpi_ns_search_node(*reg_name_ptr, node,
+ ACPI_TYPE_METHOD, &method_node);
+ if (ACPI_SUCCESS(status)) {
/*
* The _REG method is optional and there can be only one per region
* definition. This will be executed when the handler is attached
@@ -495,7 +477,7 @@ acpi_ev_initialize_region (
/* Check to see if a handler exists */
handler_obj = NULL;
- obj_desc = acpi_ns_get_attached_object (node);
+ obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
/* Can only be a handler if the object exists */
@@ -523,37 +505,50 @@ acpi_ev_initialize_region (
while (handler_obj) {
/* Is this handler of the correct type? */
- if (handler_obj->address_space.space_id == space_id) {
+ if (handler_obj->address_space.space_id ==
+ space_id) {
/* Found correct handler */
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Found handler %p for region %p in obj %p\n",
- handler_obj, region_obj, obj_desc));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Found handler %p for region %p in obj %p\n",
+ handler_obj,
+ region_obj,
+ obj_desc));
- status = acpi_ev_attach_region (handler_obj, region_obj,
- acpi_ns_locked);
+ status =
+ acpi_ev_attach_region(handler_obj,
+ region_obj,
+ acpi_ns_locked);
/*
* Tell all users that this region is usable by running the _REG
* method
*/
if (acpi_ns_locked) {
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ut_release_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS
+ (status);
}
}
- status = acpi_ev_execute_reg_method (region_obj, 1);
+ status =
+ acpi_ev_execute_reg_method
+ (region_obj, 1);
if (acpi_ns_locked) {
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ut_acquire_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS
+ (status);
}
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
/* Try next handler in the list */
@@ -566,15 +561,15 @@ acpi_ev_initialize_region (
* This node does not have the handler we need;
* Pop up one level
*/
- node = acpi_ns_get_parent_node (node);
+ node = acpi_ns_get_parent_node(node);
}
/* If we get here, there is no handler for this region */
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "No handler for region_type %s(%X) (region_obj %p)\n",
- acpi_ut_get_region_name (space_id), space_id, region_obj));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "No handler for region_type %s(%X) (region_obj %p)\n",
+ acpi_ut_get_region_name(space_id), space_id,
+ region_obj));
- return_ACPI_STATUS (AE_NOT_EXIST);
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-04 04:49:17 +0000