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-rw-r--r--drivers/acpi/acpica/aclocal.h3
-rw-r--r--drivers/acpi/acpica/acutils.h2
-rw-r--r--drivers/acpi/acpica/utosi.c77
-rw-r--r--drivers/acpi/acpica/utxface.c29
-rw-r--r--include/acpi/acpixf.h2
-rw-r--r--include/acpi/actypes.h14
6 files changed, 114 insertions, 13 deletions
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index d4a49016..b0e3d15 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -942,6 +942,9 @@ struct acpi_interface_info {
#define ACPI_OSI_INVALID 0x01
#define ACPI_OSI_DYNAMIC 0x02
+#define ACPI_OSI_FEATURE 0x04
+#define ACPI_OSI_DEFAULT_INVALID 0x08
+#define ACPI_OSI_OPTIONAL_FEATURE (ACPI_OSI_FEATURE | ACPI_OSI_DEFAULT_INVALID | ACPI_OSI_INVALID)
struct acpi_port_info {
char *name;
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 4c081c4..d5a62a6 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -470,6 +470,8 @@ acpi_status acpi_ut_install_interface(acpi_string interface_name);
acpi_status acpi_ut_remove_interface(acpi_string interface_name);
+acpi_status acpi_ut_update_interfaces(u8 action);
+
struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);
acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 7e80772..8856bd3 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -77,21 +77,20 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
/* Feature Group Strings */
- {"Extended Address Space Descriptor", NULL, 0, 0}
+ {"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0},
/*
* All "optional" feature group strings (features that are implemented
- * by the host) should be dynamically added by the host via
- * acpi_install_interface and should not be manually added here.
- *
- * Examples of optional feature group strings:
- *
- * "Module Device"
- * "Processor Device"
- * "3.0 Thermal Model"
- * "3.0 _SCP Extensions"
- * "Processor Aggregator Device"
+ * by the host) should be dynamically modified to VALID by the host via
+ * acpi_install_interface or acpi_update_interfaces. Such optional feature
+ * group strings are set as INVALID by default here.
*/
+
+ {"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}
};
/*******************************************************************************
@@ -158,11 +157,20 @@ acpi_status acpi_ut_interface_terminate(void)
while (next_interface) {
acpi_gbl_supported_interfaces = next_interface->next;
- /* Only interfaces added at runtime can be freed */
-
if (next_interface->flags & ACPI_OSI_DYNAMIC) {
+
+ /* Only interfaces added at runtime can be freed */
+
ACPI_FREE(next_interface->name);
ACPI_FREE(next_interface);
+ } else {
+ /* Interface is in static list. Reset it to invalid or valid. */
+
+ if (next_interface->flags & ACPI_OSI_DEFAULT_INVALID) {
+ next_interface->flags |= ACPI_OSI_INVALID;
+ } else {
+ next_interface->flags &= ~ACPI_OSI_INVALID;
+ }
}
next_interface = acpi_gbl_supported_interfaces;
@@ -278,6 +286,49 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name)
/*******************************************************************************
*
+ * FUNCTION: acpi_ut_update_interfaces
+ *
+ * PARAMETERS: action - Actions to be performed during the
+ * update
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
+ * strings or/and feature group strings.
+ * Caller MUST hold acpi_gbl_osi_mutex
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_update_interfaces(u8 action)
+{
+ struct acpi_interface_info *next_interface;
+
+ next_interface = acpi_gbl_supported_interfaces;
+ while (next_interface) {
+ if (((next_interface->flags & ACPI_OSI_FEATURE) &&
+ (action & ACPI_FEATURE_STRINGS)) ||
+ (!(next_interface->flags & ACPI_OSI_FEATURE) &&
+ (action & ACPI_VENDOR_STRINGS))) {
+ if (action & ACPI_DISABLE_INTERFACES) {
+
+ /* Mark the interfaces as invalid */
+
+ next_interface->flags |= ACPI_OSI_INVALID;
+ } else {
+ /* Mark the interfaces as valid */
+
+ next_interface->flags &= ~ACPI_OSI_INVALID;
+ }
+ }
+
+ next_interface = next_interface->next;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ut_get_interface
*
* PARAMETERS: interface_name - The interface to find
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 6505774..03a211e 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -389,6 +389,34 @@ ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
/*****************************************************************************
*
+ * FUNCTION: acpi_update_interfaces
+ *
+ * PARAMETERS: action - Actions to be performed during the
+ * update
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
+ * string or/and feature group strings.
+ *
+ ****************************************************************************/
+acpi_status acpi_update_interfaces(u8 action)
+{
+ acpi_status status;
+
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status = acpi_ut_update_interfaces(action);
+
+ acpi_os_release_mutex(acpi_gbl_osi_mutex);
+ return (status);
+}
+
+/*****************************************************************************
+ *
* FUNCTION: acpi_check_address_range
*
* PARAMETERS: space_id - Address space ID
@@ -402,6 +430,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
* ASL operation region address ranges.
*
****************************************************************************/
+
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 292af0c..0dd03f2 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -147,6 +147,8 @@ acpi_status acpi_install_interface(acpi_string interface_name);
acpi_status acpi_remove_interface(acpi_string interface_name);
+acpi_status acpi_update_interfaces(u8 action);
+
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 787a977..eae55fb 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1152,4 +1152,18 @@ struct acpi_memory_list {
#define ACPI_OSI_WIN_7 0x0B
#define ACPI_OSI_WIN_8 0x0C
+/* _OSI update actions */
+
+#define ACPI_VENDOR_STRINGS 0x01
+#define ACPI_FEATURE_STRINGS 0x02
+#define ACPI_ENABLE_INTERFACES 0x00
+#define ACPI_DISABLE_INTERFACES 0x04
+
+#define ACPI_DISABLE_ALL_VENDOR_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_DISABLE_ALL_FEATURE_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_DISABLE_ALL_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_VENDOR_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_ENABLE_ALL_FEATURE_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
+
#endif /* __ACTYPES_H__ */
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