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| author | Tony Nguyen | 2019-08-23 20:36:52 +0200 |
|---|---|---|
| committer | Richard Henderson | 2019-09-03 17:30:39 +0200 |
| commit | d5d680cacc66ef7e3c02c81dc8f3a34eabce6dfe (patch) | |
| tree | f9738bf1ce601181a99be6c090f597fd6112b117 /memory_ldst.inc.c | |
| parent | exec: Hard code size with MO_{8|16|32|64} (diff) | |
| download | qemu-d5d680cacc66ef7e3c02c81dc8f3a34eabce6dfe.tar.gz qemu-d5d680cacc66ef7e3c02c81dc8f3a34eabce6dfe.tar.xz qemu-d5d680cacc66ef7e3c02c81dc8f3a34eabce6dfe.zip | |
memory: Access MemoryRegion with endianness
Preparation for collapsing the two byte swaps adjust_endianness and
handle_bswap into the former.
Call memory_region_dispatch_{read|write} with endianness encoded into
the "MemOp op" operand.
This patch does not change any behaviour as
memory_region_dispatch_{read|write} is yet to handle the endianness.
Once it does handle endianness, callers with byte swaps can collapse
them into adjust_endianness.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Message-Id: <8066ab3eb037c0388dfadfe53c5118429dd1de3a.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'memory_ldst.inc.c')
| -rw-r--r-- | memory_ldst.inc.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/memory_ldst.inc.c b/memory_ldst.inc.c index de658c40c4..809a7e8389 100644 --- a/memory_ldst.inc.c +++ b/memory_ldst.inc.c @@ -38,7 +38,9 @@ static inline uint32_t glue(address_space_ldl_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - r = memory_region_dispatch_read(mr, addr1, &val, MO_32, attrs); + /* TODO: Merge bswap32 into memory_region_dispatch_read. */ + r = memory_region_dispatch_read(mr, addr1, &val, + MO_32 | devend_memop(endian), attrs); #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap32(val); @@ -114,7 +116,9 @@ static inline uint64_t glue(address_space_ldq_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - r = memory_region_dispatch_read(mr, addr1, &val, MO_64, attrs); + /* TODO: Merge bswap64 into memory_region_dispatch_read. */ + r = memory_region_dispatch_read(mr, addr1, &val, + MO_64 | devend_memop(endian), attrs); #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap64(val); @@ -224,7 +228,9 @@ static inline uint32_t glue(address_space_lduw_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - r = memory_region_dispatch_read(mr, addr1, &val, MO_16, attrs); + /* TODO: Merge bswap16 into memory_region_dispatch_read. */ + r = memory_region_dispatch_read(mr, addr1, &val, + MO_16 | devend_memop(endian), attrs); #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap16(val); @@ -346,7 +352,9 @@ static inline void glue(address_space_stl_internal, SUFFIX)(ARG1_DECL, val = bswap32(val); } #endif - r = memory_region_dispatch_write(mr, addr1, val, MO_32, attrs); + /* TODO: Merge bswap32 into memory_region_dispatch_write. */ + r = memory_region_dispatch_write(mr, addr1, val, + MO_32 | devend_memop(endian), attrs); } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); @@ -451,7 +459,9 @@ static inline void glue(address_space_stw_internal, SUFFIX)(ARG1_DECL, val = bswap16(val); } #endif - r = memory_region_dispatch_write(mr, addr1, val, MO_16, attrs); + /* TODO: Merge bswap16 into memory_region_dispatch_write. */ + r = memory_region_dispatch_write(mr, addr1, val, + MO_16 | devend_memop(endian), attrs); } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); @@ -524,7 +534,9 @@ static void glue(address_space_stq_internal, SUFFIX)(ARG1_DECL, val = bswap64(val); } #endif - r = memory_region_dispatch_write(mr, addr1, val, MO_64, attrs); + /* TODO: Merge bswap64 into memory_region_dispatch_write. */ + r = memory_region_dispatch_write(mr, addr1, val, + MO_64 | devend_memop(endian), attrs); } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); |