ACPICA: New: I/O port protection
Protect certain I/O ports from reads/writes. Provides MS
compatibility. New module, hwvalid.c
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 4fa6ee6..4afa3d8 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -73,6 +73,13 @@
acpi_status acpi_hw_clear_acpi_status(void);
/*
+ * hwvalid - Port I/O with validation
+ */
+acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width);
+
+acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
+
+/*
* hwgpe - GPE support
*/
acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);