// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// CPU specific code for ppc independent of OS goes here.
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#if V8_TARGET_ARCH_PPC
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#include "src/assembler.h"
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#include "src/macro-assembler.h"
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namespace v8 {
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namespace internal {
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void CpuFeatures::FlushICache(void* buffer, size_t size) {
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#if !defined(USE_SIMULATOR)
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if (CpuFeatures::IsSupported(INSTR_AND_DATA_CACHE_COHERENCY)) {
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__asm__ __volatile__(
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"sync \n"
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"icbi 0, %0 \n"
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"isync \n"
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: /* no output */
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: "r"(buffer)
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: "memory");
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return;
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}
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const int kCacheLineSize = CpuFeatures::icache_line_size();
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intptr_t mask = kCacheLineSize - 1;
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byte *start =
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reinterpret_cast<byte *>(reinterpret_cast<intptr_t>(buffer) & ~mask);
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byte *end = static_cast<byte *>(buffer) + size;
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for (byte *pointer = start; pointer < end; pointer += kCacheLineSize) {
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__asm__(
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"dcbf 0, %0 \n"
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"sync \n"
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"icbi 0, %0 \n"
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"isync \n"
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: /* no output */
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: "r"(pointer));
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}
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#endif // !USE_SIMULATOR
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_TARGET_ARCH_PPC
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