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// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// CPU specific code for LoongArch independent of OS goes here.
#include <sys/syscall.h>
#include <unistd.h>
#if V8_TARGET_ARCH_LOONG64
#include "src/codegen/cpu-features.h"
namespace v8 {
namespace internal {
void CpuFeatures::FlushICache(void* start, size_t size) {
#if defined(V8_HOST_ARCH_LOONG64)
// Nothing to do, flushing no instructions.
if (size == 0) {
return;
}
#if defined(ANDROID) && !defined(__LP64__)
// Bionic cacheflush can typically run in userland, avoiding kernel call.
char* end = reinterpret_cast<char*>(start) + size;
cacheflush(reinterpret_cast<intptr_t>(start), reinterpret_cast<intptr_t>(end),
0);
#else // ANDROID
asm("ibar 0\n");
#endif // ANDROID
#endif // V8_HOST_ARCH_LOONG64
}
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_LOONG64
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