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Diffstat (limited to 'src/impl_ppc_linux.c')
| -rw-r--r-- | src/impl_ppc_linux.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/impl_ppc_linux.c b/src/impl_ppc_linux.c new file mode 100644 index 0000000..13a381a --- /dev/null +++ b/src/impl_ppc_linux.c @@ -0,0 +1,162 @@ +// Copyright 2018 IBM. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "cpu_features_macros.h" + +#ifdef CPU_FEATURES_ARCH_PPC +#ifdef CPU_FEATURES_OS_LINUX + +#include "cpuinfo_ppc.h" + +//////////////////////////////////////////////////////////////////////////////// +// Definitions for introspection. +//////////////////////////////////////////////////////////////////////////////// +#define INTROSPECTION_TABLE \ + LINE(PPC_32, ppc32, "ppc32", PPC_FEATURE_32, 0) \ + LINE(PPC_64, ppc64, "ppc64", PPC_FEATURE_64, 0) \ + LINE(PPC_601_INSTR, ppc601, "ppc601", PPC_FEATURE_601_INSTR, 0) \ + LINE(PPC_HAS_ALTIVEC, altivec, "altivec", PPC_FEATURE_HAS_ALTIVEC, 0) \ + LINE(PPC_HAS_FPU, fpu, "fpu", PPC_FEATURE_HAS_FPU, 0) \ + LINE(PPC_HAS_MMU, mmu, "mmu", PPC_FEATURE_HAS_MMU, 0) \ + LINE(PPC_HAS_4xxMAC, mac_4xx, "4xxmac", PPC_FEATURE_HAS_4xxMAC, 0) \ + LINE(PPC_UNIFIED_CACHE, unifiedcache, "ucache", PPC_FEATURE_UNIFIED_CACHE, \ + 0) \ + LINE(PPC_HAS_SPE, spe, "spe", PPC_FEATURE_HAS_SPE, 0) \ + LINE(PPC_HAS_EFP_SINGLE, efpsingle, "efpsingle", PPC_FEATURE_HAS_EFP_SINGLE, \ + 0) \ + LINE(PPC_HAS_EFP_DOUBLE, efpdouble, "efpdouble", PPC_FEATURE_HAS_EFP_DOUBLE, \ + 0) \ + LINE(PPC_NO_TB, no_tb, "notb", PPC_FEATURE_NO_TB, 0) \ + LINE(PPC_POWER4, power4, "power4", PPC_FEATURE_POWER4, 0) \ + LINE(PPC_POWER5, power5, "power5", PPC_FEATURE_POWER5, 0) \ + LINE(PPC_POWER5_PLUS, power5plus, "power5+", PPC_FEATURE_POWER5_PLUS, 0) \ + LINE(PPC_CELL, cell, "cellbe", PPC_FEATURE_CELL, 0) \ + LINE(PPC_BOOKE, booke, "booke", PPC_FEATURE_BOOKE, 0) \ + LINE(PPC_SMT, smt, "smt", PPC_FEATURE_SMT, 0) \ + LINE(PPC_ICACHE_SNOOP, icachesnoop, "ic_snoop", PPC_FEATURE_ICACHE_SNOOP, 0) \ + LINE(PPC_ARCH_2_05, arch205, "arch_2_05", PPC_FEATURE_ARCH_2_05, 0) \ + LINE(PPC_PA6T, pa6t, "pa6t", PPC_FEATURE_PA6T, 0) \ + LINE(PPC_HAS_DFP, dfp, "dfp", PPC_FEATURE_HAS_DFP, 0) \ + LINE(PPC_POWER6_EXT, power6ext, "power6x", PPC_FEATURE_POWER6_EXT, 0) \ + LINE(PPC_ARCH_2_06, arch206, "arch_2_06", PPC_FEATURE_ARCH_2_06, 0) \ + LINE(PPC_HAS_VSX, vsx, "vsx", PPC_FEATURE_HAS_VSX, 0) \ + LINE(PPC_PSERIES_PERFMON_COMPAT, pseries_perfmon_compat, "archpmu", \ + PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0) \ + LINE(PPC_TRUE_LE, truele, "true_le", PPC_FEATURE_TRUE_LE, 0) \ + LINE(PPC_PPC_LE, ppcle, "ppcle", PPC_FEATURE_PPC_LE, 0) \ + LINE(PPC_ARCH_2_07, arch207, "arch_2_07", 0, PPC_FEATURE2_ARCH_2_07) \ + LINE(PPC_HTM, htm, "htm", 0, PPC_FEATURE2_HTM) \ + LINE(PPC_DSCR, dscr, "dscr", 0, PPC_FEATURE2_DSCR) \ + LINE(PPC_EBB, ebb, "ebb", 0, PPC_FEATURE2_EBB) \ + LINE(PPC_ISEL, isel, "isel", 0, PPC_FEATURE2_ISEL) \ + LINE(PPC_TAR, tar, "tar", 0, PPC_FEATURE2_TAR) \ + LINE(PPC_VEC_CRYPTO, vcrypto, "vcrypto", 0, PPC_FEATURE2_VEC_CRYPTO) \ + LINE(PPC_HTM_NOSC, htm_nosc, "htm-nosc", 0, PPC_FEATURE2_HTM_NOSC) \ + LINE(PPC_ARCH_3_00, arch300, "arch_3_00", 0, PPC_FEATURE2_ARCH_3_00) \ + LINE(PPC_HAS_IEEE128, ieee128, "ieee128", 0, PPC_FEATURE2_HAS_IEEE128) \ + LINE(PPC_DARN, darn, "darn", 0, PPC_FEATURE2_DARN) \ + LINE(PPC_SCV, scv, "scv", 0, PPC_FEATURE2_SCV) \ + LINE(PPC_HTM_NO_SUSPEND, htm_no_suspend, "htm-no-suspend", 0, \ + PPC_FEATURE2_HTM_NO_SUSPEND) +#define INTROSPECTION_PREFIX PPC +#define INTROSPECTION_ENUM_PREFIX PPC +#include "define_introspection_and_hwcaps.inl" + +//////////////////////////////////////////////////////////////////////////////// +// Implementation. +//////////////////////////////////////////////////////////////////////////////// + +#include <stdbool.h> + +#include "internal/bit_utils.h" +#include "internal/filesystem.h" +#include "internal/hwcaps.h" +#include "internal/stack_line_reader.h" +#include "internal/string_view.h" + +static bool HandlePPCLine(const LineResult result, + PPCPlatformStrings* const strings) { + StringView line = result.line; + StringView key, value; + if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value)) { + if (CpuFeatures_StringView_HasWord(key, "platform", ' ')) { + CpuFeatures_StringView_CopyString(value, strings->platform, + sizeof(strings->platform)); + } else if (CpuFeatures_StringView_IsEquals(key, str("model"))) { + CpuFeatures_StringView_CopyString(value, strings->model, + sizeof(strings->platform)); + } else if (CpuFeatures_StringView_IsEquals(key, str("machine"))) { + CpuFeatures_StringView_CopyString(value, strings->machine, + sizeof(strings->platform)); + } else if (CpuFeatures_StringView_IsEquals(key, str("cpu"))) { + CpuFeatures_StringView_CopyString(value, strings->cpu, + sizeof(strings->platform)); + } + } + return !result.eof; +} + +static void FillProcCpuInfoData(PPCPlatformStrings* const strings) { + const int fd = CpuFeatures_OpenFile("/proc/cpuinfo"); + if (fd >= 0) { + StackLineReader reader; + StackLineReader_Initialize(&reader, fd); + for (;;) { + if (!HandlePPCLine(StackLineReader_NextLine(&reader), strings)) { + break; + } + } + CpuFeatures_CloseFile(fd); + } +} + +static const PPCInfo kEmptyPPCInfo; + +PPCInfo GetPPCInfo(void) { + /* + * On Power feature flags aren't currently in cpuinfo so we only look at + * the auxilary vector. + */ + PPCInfo info = kEmptyPPCInfo; + const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities(); + for (size_t i = 0; i < PPC_LAST_; ++i) { + if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) { + kSetters[i](&info.features, true); + } + } + return info; +} + +static const PPCPlatformStrings kEmptyPPCPlatformStrings; + +PPCPlatformStrings GetPPCPlatformStrings(void) { + PPCPlatformStrings strings = kEmptyPPCPlatformStrings; + const char* platform = CpuFeatures_GetPlatformPointer(); + const char* base_platform = CpuFeatures_GetBasePlatformPointer(); + + FillProcCpuInfoData(&strings); + + if (platform != NULL) + CpuFeatures_StringView_CopyString(str(platform), strings.type.platform, + sizeof(strings.type.platform)); + if (base_platform != NULL) + CpuFeatures_StringView_CopyString(str(base_platform), + strings.type.base_platform, + sizeof(strings.type.base_platform)); + + return strings; +} + +#endif // CPU_FEATURES_OS_LINUX +#endif // CPU_FEATURES_ARCH_PPC |