Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 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. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6 | |
| 7 | #if V8_TARGET_ARCH_PPC |
| 8 | |
| 9 | #include "src/assembler.h" |
| 10 | #include "src/macro-assembler.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
| 15 | void CpuFeatures::FlushICache(void* buffer, size_t size) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 16 | #if !defined(USE_SIMULATOR) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 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 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 28 | const int kCacheLineSize = CpuFeatures::icache_line_size(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 43 | #endif // !USE_SIMULATOR |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 44 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 45 | } // namespace internal |
| 46 | } // namespace v8 |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 47 | |
| 48 | #endif // V8_TARGET_ARCH_PPC |