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[v4,10/15] memory: Access MemoryRegion with MemOp semantics

Message ID 1564048559228.36766@bt.com
State New
Headers show
Series Invert Endian bit in SPARCv9 MMU TTE | expand

Commit Message

Tony Nguyen July 25, 2019, 9:55 a.m. UTC 
To convert interfaces of MemoryRegion access, MEMOP_SIZE and
SIZE_MEMOP no-op stubs were introduced to change syntax while keeping
the existing semantics.

Now with interfaces converted, we fill the stubs and use MemOp
semantics.

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
---
 include/exec/memop.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--
1.8.3.1
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Patch

diff --git a/include/exec/memop.h b/include/exec/memop.h
index 09c8d20..f2847e8 100644
--- a/include/exec/memop.h
+++ b/include/exec/memop.h
@@ -106,8 +106,7 @@  typedef enum MemOp {
     MO_SSIZE = MO_SIZE | MO_SIGN,
 } MemOp;

-/* No-op while memory_region_dispatch_[read|write] is converted to MemOp */
-#define MEMOP_SIZE(op)  (op)    /* MemOp to size.  */
-#define SIZE_MEMOP(ul)  (ul)    /* Size to MemOp.  */
+#define MEMOP_SIZE(op)  (1 << ((op) & MO_SIZE)) /* MemOp to size.  */
+#define SIZE_MEMOP(ul)  (ctzl(ul))              /* Size to MemOp.  */

 #endif