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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 #include "vm/globals.h" | |
| 6 #if defined(TARGET_ARCH_MIPS) | |
| 7 | |
| 8 #include "vm/cpu.h" | |
| 9 #include "vm/cpu_mips.h" | |
| 10 | |
| 11 #include "vm/cpuinfo.h" | |
| 12 #include "vm/simulator.h" | |
| 13 | |
| 14 #if !defined(USING_SIMULATOR) | |
| 15 #include <asm/cachectl.h> /* NOLINT */ | |
| 16 #include <sys/syscall.h> /* NOLINT */ | |
| 17 #include <unistd.h> /* NOLINT */ | |
| 18 #endif | |
| 19 | |
| 20 namespace dart { | |
| 21 | |
| 22 void CPU::FlushICache(uword start, uword size) { | |
| 23 #if !defined(USING_SIMULATOR) | |
| 24 int res; | |
| 25 // See http://www.linux-mips.org/wiki/Cacheflush_Syscall. | |
| 26 res = syscall(__NR_cacheflush, start, size, ICACHE); | |
| 27 ASSERT(res == 0); | |
| 28 #else // defined(HOST_ARCH_MIPS) | |
| 29 // When running in simulated mode we do not need to flush the ICache because | |
| 30 // we are not running on the actual hardware. | |
| 31 #endif // defined(HOST_ARCH_MIPS) | |
| 32 } | |
| 33 | |
| 34 | |
| 35 const char* CPU::Id() { | |
| 36 return | |
| 37 #if defined(USING_SIMULATOR) | |
| 38 "sim" | |
| 39 #endif // !defined(HOST_ARCH_MIPS) | |
| 40 "mips"; | |
| 41 } | |
| 42 | |
| 43 | |
| 44 const char* HostCPUFeatures::hardware_ = NULL; | |
| 45 MIPSVersion HostCPUFeatures::mips_version_ = MIPSvUnknown; | |
| 46 #if defined(DEBUG) | |
| 47 bool HostCPUFeatures::initialized_ = false; | |
| 48 #endif | |
| 49 | |
| 50 | |
| 51 #if !defined(USING_SIMULATOR) | |
| 52 void HostCPUFeatures::InitOnce() { | |
| 53 CpuInfo::InitOnce(); | |
| 54 hardware_ = CpuInfo::GetCpuModel(); | |
| 55 // Has a floating point unit. | |
| 56 ASSERT(CpuInfo::FieldContains(kCpuInfoModel, "FPU")); | |
| 57 | |
| 58 // We want to know the ISA version, but on MIPS, CpuInfo can't tell us, so | |
| 59 // we use the same ISA version that Dart's C++ compiler targeted. | |
| 60 #if defined(_MIPS_ARCH_MIPS32R2) | |
| 61 mips_version_ = MIPS32r2; | |
| 62 #elif defined(_MIPS_ARCH_MIPS32) | |
| 63 mips_version_ = MIPS32; | |
| 64 #endif | |
| 65 | |
| 66 #if defined(DEBUG) | |
| 67 initialized_ = true; | |
| 68 #endif | |
| 69 } | |
| 70 | |
| 71 | |
| 72 void HostCPUFeatures::Cleanup() { | |
| 73 DEBUG_ASSERT(initialized_); | |
| 74 #if defined(DEBUG) | |
| 75 initialized_ = false; | |
| 76 #endif | |
| 77 ASSERT(hardware_ != NULL); | |
| 78 free(const_cast<char*>(hardware_)); | |
| 79 hardware_ = NULL; | |
| 80 CpuInfo::Cleanup(); | |
| 81 } | |
| 82 | |
| 83 #else | |
| 84 | |
| 85 void HostCPUFeatures::InitOnce() { | |
| 86 CpuInfo::InitOnce(); | |
| 87 hardware_ = CpuInfo::GetCpuModel(); | |
| 88 mips_version_ = MIPS32r2; | |
| 89 #if defined(DEBUG) | |
| 90 initialized_ = true; | |
| 91 #endif | |
| 92 } | |
| 93 | |
| 94 | |
| 95 void HostCPUFeatures::Cleanup() { | |
| 96 DEBUG_ASSERT(initialized_); | |
| 97 #if defined(DEBUG) | |
| 98 initialized_ = false; | |
| 99 #endif | |
| 100 ASSERT(hardware_ != NULL); | |
| 101 free(const_cast<char*>(hardware_)); | |
| 102 hardware_ = NULL; | |
| 103 CpuInfo::Cleanup(); | |
| 104 } | |
| 105 #endif // defined(HOST_ARCH_MIPS) | |
| 106 | |
| 107 } // namespace dart | |
| 108 | |
| 109 #endif // defined TARGET_ARCH_MIPS | |
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Chromium Code Reviews
Issue 2858623002:
Remove MIPS support (Closed)
