diff options
| -rw-r--r-- | include/acpi/actypes.h | 20 | ||||
| -rw-r--r-- | include/acpi/platform/acenv.h | 1 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 68a3ada689c9..8fc12f80b616 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -198,9 +198,29 @@ typedef int INT32; typedef s32 acpi_native_int; typedef u32 acpi_size; + +#ifdef ACPI_32BIT_PHYSICAL_ADDRESS + +/* + * OSPMs can define this to shrink the size of the structures for 32-bit + * none PAE environment. ASL compiler may always define this to generate + * 32-bit OSPM compliant tables. + */ typedef u32 acpi_io_address; typedef u32 acpi_physical_address; +#else /* ACPI_32BIT_PHYSICAL_ADDRESS */ + +/* + * It is reported that, after some calculations, the physical addresses can + * wrap over the 32-bit boundary on 32-bit PAE environment. + * https://bugzilla.kernel.org/show_bug.cgi?id=87971 + */ +typedef u64 acpi_io_address; +typedef u64 acpi_physical_address; + +#endif /* ACPI_32BIT_PHYSICAL_ADDRESS */ + #define ACPI_MAX_PTR ACPI_UINT32_MAX #define ACPI_SIZE_MAX ACPI_UINT32_MAX diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h index b402eb67af83..579912c7156c 100644 --- a/include/acpi/platform/acenv.h +++ b/include/acpi/platform/acenv.h @@ -76,6 +76,7 @@ #define ACPI_LARGE_NAMESPACE_NODE #define ACPI_DATA_TABLE_DISASSEMBLY #define ACPI_SINGLE_THREADED +#define ACPI_32BIT_PHYSICAL_ADDRESS #endif /* acpi_exec configuration. Multithreaded with full AML debugger */ |