diff options
| author | Tony Nguyen <tony.nguyen@bt.com> | 2019-08-24 04:36:48 +1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-09-03 08:30:39 -0700 |
| commit | e67c904668d82ca4416cd91d37d9f5abcceef747 (patch) | |
| tree | 10c24e199416825d9e32b0aa32209affcc2fa261 /include/exec/memop.h | |
| parent | 4cbb198eefef41bbca703605c78875fd4fec6ef6 (diff) | |
memory: Access MemoryRegion with MemOp
Convert memory_region_dispatch_{read|write} operand "unsigned size"
into a "MemOp op".
Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <1dd82df5801866743f838f1d046475115a1d32da.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/exec/memop.h')
| -rw-r--r-- | include/exec/memop.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/include/exec/memop.h b/include/exec/memop.h index dfd76a1604..0a610b75d9 100644 --- a/include/exec/memop.h +++ b/include/exec/memop.h @@ -12,6 +12,8 @@ #ifndef MEMOP_H #define MEMOP_H +#include "qemu/host-utils.h" + typedef enum MemOp { MO_8 = 0, MO_16 = 1, @@ -107,14 +109,20 @@ typedef enum MemOp { MO_SSIZE = MO_SIZE | MO_SIGN, } MemOp; +/* MemOp to size in bytes. */ +static inline unsigned memop_size(MemOp op) +{ + return 1 << (op & MO_SIZE); +} + /* Size in bytes to MemOp. */ -static inline unsigned size_memop(unsigned size) +static inline MemOp size_memop(unsigned size) { - /* - * FIXME: No-op to aid conversion of memory_region_dispatch_{read|write} - * "unsigned size" operand into a "MemOp op". - */ - return size; +#ifdef CONFIG_DEBUG_TCG + /* Power of 2 up to 8. */ + assert((size & (size - 1)) == 0 && size >= 1 && size <= 8); +#endif + return ctz32(size); } #endif |