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memory.h: Move MemTxResult type to memattrs.h

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Move the MemTxResult type to memattrs.h. We're going to want to
use it in cpu/qom.h, which doesn't want to include all of
memory.h. In practice MemTxResult and MemTxAttrs are pretty
closely linked since both are used for the new-style
read_with_attrs and write_with_attrs callbacks, so memattrs.h
is a reasonable home for this rather than creating a whole
new header file for it.

Backports commit 3114d092b1740f9db9aa559aeb48ee387011e1da from qemu
This commit is contained in:
Peter Maydell 2018-03-04 13:08:53 -05:00 committed by Lioncash
parent 06619904c6
commit 26c8f31d9e
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GPG Key ID: 4E3C3CC1031BA9C7
2 changed files with 10 additions and 10 deletions
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10
qemu/include/exec/memattrs.h
View File

@ -44,4 +44,14 @@ typedef struct MemTxAttrs {
*/
#define MEMTXATTRS_UNSPECIFIED ((MemTxAttrs) { .unspecified = 1 })
/* New-style MMIO accessors can indicate that the transaction failed.
* A zero (MEMTX_OK) response means success; anything else is a failure
* of some kind. The memory subsystem will bitwise-OR together results
* if it is synthesizing an operation from multiple smaller accesses.
*/
#define MEMTX_OK 0
#define MEMTX_ERROR (1U << 0) /* device returned an error */
#define MEMTX_DECODE_ERROR (1U << 1) /* nothing at that address */
typedef uint32_t MemTxResult;
#endif

10
qemu/include/exec/memory.h
View File

@ -61,16 +61,6 @@ struct IOMMUTLBEntry {
IOMMUAccessFlags perm;
};
/* New-style MMIO accessors can indicate that the transaction failed.
* A zero (MEMTX_OK) response means success; anything else is a failure
* of some kind. The memory subsystem will bitwise-OR together results
* if it is synthesizing an operation from multiple smaller accesses.
*/
#define MEMTX_OK 0
#define MEMTX_ERROR (1U << 0) /* device returned an error */
#define MEMTX_DECODE_ERROR (1U << 1) /* nothing at that address */
typedef uint32_t MemTxResult;
/*
* Memory region callbacks
*/