11cb0ef41Sopenharmony_ci// Copyright 2012 the V8 project authors. All rights reserved. 21cb0ef41Sopenharmony_ci// Use of this source code is governed by a BSD-style license that can be 31cb0ef41Sopenharmony_ci// found in the LICENSE file. 41cb0ef41Sopenharmony_ci 51cb0ef41Sopenharmony_ci// CPU specific code for arm independent of OS goes here. 61cb0ef41Sopenharmony_ci 71cb0ef41Sopenharmony_ci#include <sys/syscall.h> 81cb0ef41Sopenharmony_ci#include <unistd.h> 91cb0ef41Sopenharmony_ci 101cb0ef41Sopenharmony_ci#ifdef __mips 111cb0ef41Sopenharmony_ci#include <asm/cachectl.h> 121cb0ef41Sopenharmony_ci#endif // #ifdef __mips 131cb0ef41Sopenharmony_ci 141cb0ef41Sopenharmony_ci#if V8_TARGET_ARCH_MIPS64 151cb0ef41Sopenharmony_ci 161cb0ef41Sopenharmony_ci#include "src/codegen/cpu-features.h" 171cb0ef41Sopenharmony_ci 181cb0ef41Sopenharmony_cinamespace v8 { 191cb0ef41Sopenharmony_cinamespace internal { 201cb0ef41Sopenharmony_ci 211cb0ef41Sopenharmony_civoid CpuFeatures::FlushICache(void* start, size_t size) { 221cb0ef41Sopenharmony_ci#if !defined(USE_SIMULATOR) 231cb0ef41Sopenharmony_ci // Nothing to do, flushing no instructions. 241cb0ef41Sopenharmony_ci if (size == 0) { 251cb0ef41Sopenharmony_ci return; 261cb0ef41Sopenharmony_ci } 271cb0ef41Sopenharmony_ci 281cb0ef41Sopenharmony_ci#if defined(ANDROID) && !defined(__LP64__) 291cb0ef41Sopenharmony_ci // Bionic cacheflush can typically run in userland, avoiding kernel call. 301cb0ef41Sopenharmony_ci char* end = reinterpret_cast<char*>(start) + size; 311cb0ef41Sopenharmony_ci cacheflush(reinterpret_cast<intptr_t>(start), reinterpret_cast<intptr_t>(end), 321cb0ef41Sopenharmony_ci 0); 331cb0ef41Sopenharmony_ci#else // ANDROID 341cb0ef41Sopenharmony_ci long res; // NOLINT(runtime/int) 351cb0ef41Sopenharmony_ci // See http://www.linux-mips.org/wiki/Cacheflush_Syscall. 361cb0ef41Sopenharmony_ci res = syscall(__NR_cacheflush, start, size, ICACHE); 371cb0ef41Sopenharmony_ci if (res) FATAL("Failed to flush the instruction cache"); 381cb0ef41Sopenharmony_ci#endif // ANDROID 391cb0ef41Sopenharmony_ci#endif // !USE_SIMULATOR. 401cb0ef41Sopenharmony_ci} 411cb0ef41Sopenharmony_ci 421cb0ef41Sopenharmony_ci} // namespace internal 431cb0ef41Sopenharmony_ci} // namespace v8 441cb0ef41Sopenharmony_ci 451cb0ef41Sopenharmony_ci#endif // V8_TARGET_ARCH_MIPS64 46