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