diff options
Diffstat (limited to 'include/exec/memory.h')
| -rw-r--r-- | include/exec/memory.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 2dd810259d..a30245c25a 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -2201,8 +2201,25 @@ address_space_write_cached(MemoryRegionCache *cache, hwaddr addr, } } +#ifdef NEED_CPU_H /* enum device_endian to MemOp. */ -MemOp devend_memop(enum device_endian end); +static inline MemOp devend_memop(enum device_endian end) +{ + QEMU_BUILD_BUG_ON(DEVICE_HOST_ENDIAN != DEVICE_LITTLE_ENDIAN && + DEVICE_HOST_ENDIAN != DEVICE_BIG_ENDIAN); + +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) + /* Swap if non-host endianness or native (target) endianness */ + return (end == DEVICE_HOST_ENDIAN) ? 0 : MO_BSWAP; +#else + const int non_host_endianness = + DEVICE_LITTLE_ENDIAN ^ DEVICE_BIG_ENDIAN ^ DEVICE_HOST_ENDIAN; + + /* In this case, native (target) endianness needs no swap. */ + return (end == non_host_endianness) ? MO_BSWAP : 0; +#endif +} +#endif #endif |