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ACPICA: Fix for ACPI_HIDWORD macro 

Fixed a regression introduced in version 20071114. The ACPI_HIDWORD
macro was inadvertently changed to return a 16-bit value instead of
a 32-bit value, truncating the upper Dword of a 64-bit value. This
macro is only used to display debug output, so no incorrect
calculations were made.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2008-04-10 19:06:42 +04:00 committed by Len Brown
parent b1dd9096fe
commit 7823665ecc
1 changed files with 35 additions and 34 deletions
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69
include/acpi/acmacros.h
View File

@ -61,30 +61,6 @@
#define ACPI_ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
/*
* Full 64-bit integer must be available on both 32-bit and 64-bit platforms
*/
#define ACPI_LODWORD(l) ((u32)(u64)(l))
#define ACPI_HIDWORD(l) ((u16)((((u64)(l)) >> 32) & 0xFFFFFFFF))
#if 0
#define ACPI_HIDWORD(l) ((u32)(((*(struct uint64_struct *)(void *)(&l))).hi))
#endif
/*
* printf() format helpers
*/
/* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i),ACPI_LODWORD(i)
#if ACPI_MACHINE_WIDTH == 64
#define ACPI_FORMAT_NATIVE_UINT(i) ACPI_FORMAT_UINT64(i)
#else
#define ACPI_FORMAT_NATIVE_UINT(i) 0, (i)
#endif
/*
* Extract data using a pointer. Any more than a byte and we
* get into potential aligment issues -- see the STORE macros below.
@ -121,6 +97,31 @@
#define ACPI_COMPARE_NAME(a,b) (!ACPI_STRNCMP (ACPI_CAST_PTR (char,(a)), ACPI_CAST_PTR (char,(b)), ACPI_NAME_SIZE))
#endif
/*
* Full 64-bit integer must be available on both 32-bit and 64-bit platforms
*/
struct acpi_integer_overlay {
u32 lo_dword;
u32 hi_dword;
};
#define ACPI_LODWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->lo_dword)
#define ACPI_HIDWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->hi_dword)
/*
* printf() format helpers
*/
/* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i),ACPI_LODWORD(i)
#if ACPI_MACHINE_WIDTH == 64
#define ACPI_FORMAT_NATIVE_UINT(i) ACPI_FORMAT_UINT64(i)
#else
#define ACPI_FORMAT_NATIVE_UINT(i) 0, (i)
#endif
/*
* Macros for moving data around to/from buffers that are possibly unaligned.
* If the hardware supports the transfer of unaligned data, just do the store.
@ -137,29 +138,29 @@
/* These macros reverse the bytes during the move, converting little-endian to big endian */
/* Big Endian <== Little Endian */
/* Hi...Lo Lo...Hi */
/* Big Endian <== Little Endian */
/* Hi...Lo Lo...Hi */
/* 16-bit source, 16/32/64 destination */
#define ACPI_MOVE_16_TO_16(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_16_TO_32(d,s) {(*(u32 *)(void *)(d))=0;\
((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_16_TO_64(d,s) {(*(u64 *)(void *)(d))=0;\
((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
/* 32-bit source, 16/32/64 destination */
#define ACPI_MOVE_32_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
#define ACPI_MOVE_32_TO_32(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_32_TO_64(d,s) {(*(u64 *)(void *)(d))=0;\
((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\