ACPICA: Add support for region address conflict checking

Allows drivers to determine if any memory or I/O addresses
will conflict with addresses used by ACPI operation regions.
Introduces a new interface, acpi_check_address_range.

http://marc.info/?t=132251388700002&r=1&w=2

Reported-and-tested-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 30f5bef4f14d..a4cfded67c08 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -112,6 +112,11 @@ acpi_status acpi_install_interface(acpi_string interface_name);
 
 acpi_status acpi_remove_interface(acpi_string interface_name);
 
+u32
+acpi_check_address_range(acpi_adr_space_type space_id,
+                         acpi_physical_address address,
+                         acpi_size length, u8 warn);
+
 /*
  * ACPI Memory management
  */