1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // CPU specific code for ppc independent of OS goes here. 6 7 #if V8_TARGET_ARCH_PPC 8 9 #include "src/assembler.h" 10 #include "src/macro-assembler.h" 11 12 namespace v8 { 13 namespace internal { 14 15 void CpuFeatures::FlushICache(void* buffer, size_t size) { 16 #if !defined(USE_SIMULATOR) 17 if (CpuFeatures::IsSupported(INSTR_AND_DATA_CACHE_COHERENCY)) { 18 __asm__ __volatile__( 19 "sync \n" 20 "icbi 0, %0 \n" 21 "isync \n" 22 : /* no output */ 23 : "r"(buffer) 24 : "memory"); 25 return; 26 } 27 28 const int kCacheLineSize = CpuFeatures::icache_line_size(); 29 intptr_t mask = kCacheLineSize - 1; 30 byte *start = 31 reinterpret_cast<byte *>(reinterpret_cast<intptr_t>(buffer) & ~mask); 32 byte *end = static_cast<byte *>(buffer) + size; 33 for (byte *pointer = start; pointer < end; pointer += kCacheLineSize) { 34 __asm__( 35 "dcbf 0, %0 \n" 36 "sync \n" 37 "icbi 0, %0 \n" 38 "isync \n" 39 : /* no output */ 40 : "r"(pointer)); 41 } 42 43 #endif // !USE_SIMULATOR 44 } 45 } // namespace internal 46 } // namespace v8 47 48 #endif // V8_TARGET_ARCH_PPC 49
