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authorPaolo Bonzini <pbonzini@redhat.com>2013-05-24 12:40:43 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2013-05-29 16:27:29 +0200
commita649b9168cb9169b41532b168b94294e2be32e50 (patch)
treea5777db5003d245a760ba61e3a14077d5546fe74 /include/exec/softmmu_template.h
parent968a5627c80ff2b9fd1ed40f9400897088bd661a (diff)
exec: just use io_mem_read/io_mem_write for 8-byte I/O accesses
The memory API is able to split it in two 4-byte accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/softmmu_template.h')
-rw-r--r--include/exec/softmmu_template.h24
1 files changed, 1 insertions, 23 deletions
diff --git a/include/exec/softmmu_template.h b/include/exec/softmmu_template.h
index ca91fd0b22..292ca02bc5 100644
--- a/include/exec/softmmu_template.h
+++ b/include/exec/softmmu_template.h
@@ -63,7 +63,6 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env,
target_ulong addr,
uintptr_t retaddr)
{
- DATA_TYPE res;
MemoryRegion *mr = iotlb_to_region(physaddr);
physaddr = (physaddr & TARGET_PAGE_MASK) + addr;
@@ -73,18 +72,7 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env,
}
env->mem_io_vaddr = addr;
-#if SHIFT <= 2
- res = io_mem_read(mr, physaddr, 1 << SHIFT);
-#else
-#ifdef TARGET_WORDS_BIGENDIAN
- res = io_mem_read(mr, physaddr, 4) << 32;
- res |= io_mem_read(mr, physaddr + 4, 4);
-#else
- res = io_mem_read(mr, physaddr, 4);
- res |= io_mem_read(mr, physaddr + 4, 4) << 32;
-#endif
-#endif /* SHIFT > 2 */
- return res;
+ return io_mem_read(mr, physaddr, 1 << SHIFT);
}
/* handle all cases except unaligned access which span two pages */
@@ -221,17 +209,7 @@ static inline void glue(io_write, SUFFIX)(CPUArchState *env,
env->mem_io_vaddr = addr;
env->mem_io_pc = retaddr;
-#if SHIFT <= 2
io_mem_write(mr, physaddr, val, 1 << SHIFT);
-#else
-#ifdef TARGET_WORDS_BIGENDIAN
- io_mem_write(mr, physaddr, (val >> 32), 4);
- io_mem_write(mr, physaddr + 4, (uint32_t)val, 4);
-#else
- io_mem_write(mr, physaddr, (uint32_t)val, 4);
- io_mem_write(mr, physaddr + 4, val >> 32, 4);
-#endif
-#endif /* SHIFT > 2 */
}
void glue(glue(helper_st, SUFFIX), MMUSUFFIX)(CPUArchState *env,