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target/mips: Access MemoryRegion with MemOp

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The memory_region_dispatch_{read|write} operand "unsigned size" is
being converted into a "MemOp op".

Convert interfaces by using no-op size_memop.

After all interfaces are converted, size_memop will be implemented
and the memory_region_dispatch_{read|write} operand "unsigned size"
will be converted into a "MemOp op".

As size_memop is a no-op, this patch does not change any behaviour.

Backports commit e501824b3f3b3650e7cb8a509064cac01bc27c82 from qemu
This commit is contained in:
Tony Nguyen 2020-01-07 18:21:24 -05:00 committed by Lioncash
parent dd78f65bc6
commit 7e9a1641c2
1 changed files with 3 additions and 2 deletions
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5
qemu/target/mips/op_helper.c
View file

@ -23,6 +23,7 @@
#include "exec/helper-proto.h"
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "exec/memop.h"
#include "fpu/softfloat.h"
/*****************************************************************************/
@ -4727,11 +4728,11 @@ void helper_cache(CPUMIPSState *env, target_ulong addr, uint32_t op)
if (op == 9) {
/* Index Store Tag */
memory_region_dispatch_write(env->itc_tag, index, env->CP0_TagLo,
8, MEMTXATTRS_UNSPECIFIED);
size_memop(8), MEMTXATTRS_UNSPECIFIED);
} else if (op == 5) {
/* Index Load Tag */
memory_region_dispatch_read(env->itc_tag, index, &env->CP0_TagLo,
8, MEMTXATTRS_UNSPECIFIED);
size_memop(8), MEMTXATTRS_UNSPECIFIED);
}
#endif
}