Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/275
-gerrit
commit f7195d2b65fb571ab7e3a9950bf8eaef878c411a Author: Stefan Reinauer reinauer@chromium.org Date: Fri Oct 14 15:11:16 2011 -0700
Add macros for 64bit byte order swapping
Change-Id: Ic31ccd41ba3e0af7046eafc29221810d4cd196c8 Signed-off-by: Stefan Reinauer reinauer@google.com --- src/arch/x86/include/arch/byteorder.h | 13 +++++++++---- src/include/swab.h | 11 +++++++++++ 2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/src/arch/x86/include/arch/byteorder.h b/src/arch/x86/include/arch/byteorder.h index ab344e6..1184ed2 100644 --- a/src/arch/x86/include/arch/byteorder.h +++ b/src/arch/x86/include/arch/byteorder.h @@ -3,12 +3,17 @@
#define __LITTLE_ENDIAN 1234
+#include <stdint.h> #include <swab.h>
-#define cpu_to_le32(x) ((unsigned int)(x)) -#define le32_to_cpu(x) ((unsigned int)(x)) -#define cpu_to_le16(x) ((unsigned short)(x)) -#define le16_to_cpu(x) ((unsigned short)(x)) +#define cpu_to_le64(x) ((uint64_t)(x)) +#define le64_to_cpu(x) ((uint64_t)(x)) +#define cpu_to_le32(x) ((uint32_t)(x)) +#define le32_to_cpu(x) ((uint32_t)(x)) +#define cpu_to_le16(x) ((uint16_t)(x)) +#define le16_to_cpu(x) ((uint16_t)(x)) +#define cpu_to_be64(x) swab64(x) +#define be64_to_cpu(x) swab64(x) #define cpu_to_be32(x) swab32((x)) #define be32_to_cpu(x) swab32((x)) #define cpu_to_be16(x) swab16((x)) diff --git a/src/include/swab.h b/src/include/swab.h index 3a16686..c5e4370 100644 --- a/src/include/swab.h +++ b/src/include/swab.h @@ -30,4 +30,15 @@ (((unsigned int)(x) & (unsigned int)0x00ff0000UL) >> 8) | \ (((unsigned int)(x) & (unsigned int)0xff000000UL) >> 24) ))
+#define swab64(x) \ + ((uint64_t)( \ + (((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \ + (((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ + (((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ + (((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ + (((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ + (((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ + (((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ + (((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56) )) + #endif /* _SWAB_H */