ACPI: ACPICA 20060217

Implemented a change to the IndexField support to match
the behavior of the Microsoft AML interpreter. The value
written to the Index register is now a byte offset,
no longer an index based upon the width of the Data
register. This should fix IndexField problems seen on
some machines where the Data register is not exactly one
byte wide. The ACPI specification will be clarified on
this point.

Fixed a problem where several resource descriptor
types could overrun the internal descriptor buffer due
to size miscalculation: VendorShort, VendorLong, and
Interrupt. This was noticed on IA64 machines, but could
affect all platforms.

Fixed a problem where individual resource descriptors were
misaligned within the internal buffer, causing alignment
faults on IA64 platforms.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

3 files changed, 20 insertions, 26 deletions

diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 28a6a23c863..78850225622 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -63,7 +63,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20060210
+#define ACPI_CA_VERSION                 0x20060217
 
 /*
  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h
index f2be2a88173..dd5644dbe94 100644
--- a/include/acpi/acmacros.h
+++ b/include/acpi/acmacros.h
@@ -341,29 +341,33 @@
 /*
  * Rounding macros (Power of two boundaries only)
  */
-#define ACPI_ROUND_DOWN(value,boundary)      (((acpi_native_uint)(value)) & \
+#define ACPI_ROUND_DOWN(value,boundary)     (((acpi_native_uint)(value)) & \
 												(~(((acpi_native_uint) boundary)-1)))
 
-#define ACPI_ROUND_UP(value,boundary)        ((((acpi_native_uint)(value)) + \
+#define ACPI_ROUND_UP(value,boundary)       ((((acpi_native_uint)(value)) + \
 												(((acpi_native_uint) boundary)-1)) & \
 												(~(((acpi_native_uint) boundary)-1)))
 
-#define ACPI_ROUND_DOWN_TO_32_BITS(a)        ACPI_ROUND_DOWN(a,4)
-#define ACPI_ROUND_DOWN_TO_64_BITS(a)        ACPI_ROUND_DOWN(a,8)
-#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)    ACPI_ROUND_DOWN(a,ALIGNED_ADDRESS_BOUNDARY)
+/* Note: sizeof(acpi_native_uint) evaluates to either 2, 4, or 8 */
 
-#define ACPI_ROUND_UP_to_32_bITS(a)          ACPI_ROUND_UP(a,4)
-#define ACPI_ROUND_UP_to_64_bITS(a)          ACPI_ROUND_UP(a,8)
-#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)      ACPI_ROUND_UP(a,ALIGNED_ADDRESS_BOUNDARY)
+#define ACPI_ROUND_DOWN_to_32_bIT(a)        ACPI_ROUND_DOWN(a,4)
+#define ACPI_ROUND_DOWN_to_64_bIT(a)        ACPI_ROUND_DOWN(a,8)
+#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a,sizeof(acpi_native_uint))
 
-#define ACPI_ROUND_BITS_UP_TO_BYTES(a)       ACPI_DIV_8((a) + 7)
-#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)     ACPI_DIV_8((a))
+#define ACPI_ROUND_UP_to_32_bIT(a)          ACPI_ROUND_UP(a,4)
+#define ACPI_ROUND_UP_to_64_bIT(a)          ACPI_ROUND_UP(a,8)
+#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a,sizeof(acpi_native_uint))
 
-#define ACPI_ROUND_UP_TO_1K(a)               (((a) + 1023) >> 10)
+#define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
+#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
+
+#define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
 
 /* Generic (non-power-of-two) rounding */
 
-#define ACPI_ROUND_UP_TO(value,boundary)     (((value) + ((boundary)-1)) / (boundary))
+#define ACPI_ROUND_UP_TO(value,boundary)    (((value) + ((boundary)-1)) / (boundary))
+
+#define ACPI_IS_MISALIGNED(value)           (((acpi_native_uint)value) & (sizeof(acpi_native_uint)-1))
 
 /*
  * Bitmask creation
@@ -371,10 +375,10 @@
  * MASK_BITS_ABOVE creates a mask starting AT the position and above
  * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
  */
-#define ACPI_MASK_BITS_ABOVE(position)       (~((ACPI_INTEGER_MAX) << ((u32) (position))))
-#define ACPI_MASK_BITS_BELOW(position)       ((ACPI_INTEGER_MAX) << ((u32) (position)))
+#define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_INTEGER_MAX) << ((u32) (position))))
+#define ACPI_MASK_BITS_BELOW(position)      ((ACPI_INTEGER_MAX) << ((u32) (position)))
 
-#define ACPI_IS_OCTAL_DIGIT(d)               (((char)(d) >= '0') && ((char)(d) <= '7'))
+#define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
 
 /* Bitfields within ACPI registers */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 7ca89cde706..95c3c8b6d61 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -154,7 +154,6 @@ typedef u64 acpi_physical_address;
 #define ACPI_MAX_PTR                    ACPI_UINT64_MAX
 #define ACPI_SIZE_MAX                   ACPI_UINT64_MAX
 
-#define ALIGNED_ADDRESS_BOUNDARY        0x00000008
 #define ACPI_USE_NATIVE_DIVIDE	/* Has native 64-bit integer support */
 
 /*
@@ -195,8 +194,6 @@ typedef u64 acpi_physical_address;
 #define ACPI_MAX_PTR                    ACPI_UINT32_MAX
 #define ACPI_SIZE_MAX                   ACPI_UINT32_MAX
 
-#define ALIGNED_ADDRESS_BOUNDARY        0x00000004
-
 /*******************************************************************************
  *
  * Types specific to 16-bit targets
@@ -223,7 +220,6 @@ typedef char *acpi_physical_address;
 #define ACPI_MAX_PTR                    ACPI_UINT16_MAX
 #define ACPI_SIZE_MAX                   ACPI_UINT16_MAX
 
-#define ALIGNED_ADDRESS_BOUNDARY        0x00000002
 #define ACPI_USE_NATIVE_DIVIDE	/* No 64-bit integers, ok to use native divide */
 
 /* 64-bit integers cannot be supported */
@@ -1297,12 +1293,6 @@ struct acpi_resource {
 
 #define ACPI_NEXT_RESOURCE(res)             (struct acpi_resource *)((u8 *) res + res->length)
 
-#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
-#define ACPI_ALIGN_RESOURCE_SIZE(length)    (length)
-#else
-#define ACPI_ALIGN_RESOURCE_SIZE(length)    ACPI_ROUND_UP_TO_NATIVE_WORD(length)
-#endif
-
 /*
  * END: of definitions for Resource Attributes
  */