| // 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 <assert.h> |
| #include <stdbool.h> |
| #include <string.h> |
| |
| #include "cpuinfo_ppc.h" |
| #include "internal/bit_utils.h" |
| #include "internal/filesystem.h" |
| #include "internal/stack_line_reader.h" |
| #include "internal/string_view.h" |
| #include "internal/unix_features_aggregator.h" |
| |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ppc32) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ppc64) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ppc601) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, altivec) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, fpu) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, mmu) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, mac_4xx) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, unifiedcache) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, spe) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, efpsingle) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, efpdouble) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, no_tb) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, power4) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, power5) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, power5plus) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, cell) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, booke) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, smt) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, icachesnoop) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, arch205) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, pa6t) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, dfp) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, power6ext) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, arch206) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, vsx) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, pseries_perfmon_compat) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, truele) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ppcle) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, arch207) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, htm) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, dscr) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ebb) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, isel) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, tar) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, vcrypto) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, htm_nosc) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, arch300) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, ieee128) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, darn) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, scv) |
| DECLARE_SETTER_AND_GETTER(PPCFeatures, htm_no_suspend) |
| |
| static const CapabilityConfig kConfigs[] = { |
| [PPC_32] = {{PPC_FEATURE_32, 0}, "ppc32", &set_ppc32, &get_ppc32}, |
| [PPC_64] = {{PPC_FEATURE_64, 0}, "ppc64", &set_ppc64, &get_ppc64}, |
| [PPC_601_INSTR] = {{PPC_FEATURE_601_INSTR, 0}, "ppc601", &set_ppc601, &get_ppc601}, |
| [PPC_HAS_ALTIVEC] = {{PPC_FEATURE_HAS_ALTIVEC, 0}, "altivec", &set_altivec, &get_altivec}, |
| [PPC_HAS_FPU] = {{PPC_FEATURE_HAS_FPU, 0}, "fpu", &set_fpu, &get_fpu}, |
| [PPC_HAS_MMU] = {{PPC_FEATURE_HAS_MMU, 0}, "mmu", &set_mmu, &get_mmu}, |
| [PPC_HAS_4xxMAC] = {{PPC_FEATURE_HAS_4xxMAC, 0}, "4xxmac", &set_mac_4xx, &get_mac_4xx}, |
| [PPC_UNIFIED_CACHE] = {{PPC_FEATURE_UNIFIED_CACHE, 0}, "ucache", &set_unifiedcache, &get_unifiedcache}, |
| [PPC_HAS_SPE] = {{PPC_FEATURE_HAS_SPE, 0}, "spe", &set_spe, &get_spe}, |
| [PPC_HAS_EFP_SINGLE] = {{PPC_FEATURE_HAS_EFP_SINGLE, 0}, "efpsingle", &set_efpsingle, &get_efpsingle}, |
| [PPC_HAS_EFP_DOUBLE] = {{PPC_FEATURE_HAS_EFP_DOUBLE, 0}, "efpdouble", &set_efpdouble, &get_efpdouble}, |
| [PPC_NO_TB] = {{PPC_FEATURE_NO_TB, 0}, "notb", &set_no_tb, &get_no_tb}, |
| [PPC_POWER4] = {{PPC_FEATURE_POWER4, 0}, "power4", &set_power4, &get_power4}, |
| [PPC_POWER5] = {{PPC_FEATURE_POWER5, 0}, "power5", &set_power5, &get_power5}, |
| [PPC_POWER5_PLUS] = {{PPC_FEATURE_POWER5_PLUS, 0}, "power5+", &set_power5plus, &get_power5plus}, |
| [PPC_CELL] = {{PPC_FEATURE_CELL, 0}, "cellbe", &set_cell, &get_cell}, |
| [PPC_BOOKE] = {{PPC_FEATURE_BOOKE, 0}, "booke", &set_booke, &get_booke}, |
| [PPC_SMT] = {{PPC_FEATURE_SMT, 0}, "smt", &set_smt, &get_smt}, |
| [PPC_ICACHE_SNOOP] = {{PPC_FEATURE_ICACHE_SNOOP, 0}, "ic_snoop", &set_icachesnoop, &get_icachesnoop}, |
| [PPC_ARCH_2_05] = {{PPC_FEATURE_ARCH_2_05, 0}, "arch_2_05", &set_arch205, &get_arch205}, |
| [PPC_PA6T] = {{PPC_FEATURE_PA6T, 0}, "pa6t", &set_pa6t, &get_pa6t}, |
| [PPC_HAS_DFP] = {{PPC_FEATURE_HAS_DFP, 0}, "dfp", &set_dfp, &get_dfp}, |
| [PPC_POWER6_EXT] = {{PPC_FEATURE_POWER6_EXT, 0}, "power6x", &set_power6ext, &get_power6ext}, |
| [PPC_ARCH_2_06] = {{PPC_FEATURE_ARCH_2_06, 0}, "arch_2_06", &set_arch206, &get_arch206}, |
| [PPC_HAS_VSX] = {{PPC_FEATURE_HAS_VSX, 0}, "vsx", &set_vsx, &get_vsx}, |
| [PPC_PSERIES_PERFMON_COMPAT] = {{PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0}, "archpmu", |
| &set_pseries_perfmon_compat, &get_pseries_perfmon_compat}, |
| [PPC_TRUE_LE] = {{PPC_FEATURE_TRUE_LE, 0}, "true_le", &set_truele, &get_truele}, |
| [PPC_PPC_LE] = {{PPC_FEATURE_PPC_LE, 0}, "ppcle", &set_ppcle, &get_ppcle}, |
| [PPC_ARCH_2_07] = {{0, PPC_FEATURE2_ARCH_2_07}, "arch_2_07", &set_arch207, &get_arch207}, |
| [PPC_HTM] = {{0, PPC_FEATURE2_HTM}, "htm", &set_htm, &get_htm}, |
| [PPC_DSCR] = {{0, PPC_FEATURE2_DSCR}, "dscr", &set_dscr, &get_dscr}, |
| [PPC_EBB] = {{0, PPC_FEATURE2_EBB}, "ebb", &set_ebb, &get_ebb}, |
| [PPC_ISEL] = {{0, PPC_FEATURE2_ISEL}, "isel", &set_isel, &get_isel}, |
| [PPC_TAR] = {{0, PPC_FEATURE2_TAR}, "tar", &set_tar, &get_tar}, |
| [PPC_VEC_CRYPTO] = {{0, PPC_FEATURE2_VEC_CRYPTO}, "vcrypto", &set_vcrypto, &get_vcrypto}, |
| [PPC_HTM_NOSC] = {{0, PPC_FEATURE2_HTM_NOSC}, "htm-nosc", &set_htm_nosc, &get_htm_nosc}, |
| [PPC_ARCH_3_00] = {{0, PPC_FEATURE2_ARCH_3_00}, "arch_3_00", &set_arch300, &get_arch300}, |
| [PPC_HAS_IEEE128] = {{0, PPC_FEATURE2_HAS_IEEE128}, "ieee128", &set_ieee128, &get_ieee128}, |
| [PPC_DARN] = {{0, PPC_FEATURE2_DARN}, "darn", &set_darn, &get_darn}, |
| [PPC_SCV] = {{0, PPC_FEATURE2_SCV}, "scv", &set_scv, &get_scv}, |
| [PPC_HTM_NO_SUSPEND] = {{0, PPC_FEATURE2_HTM_NO_SUSPEND}, "htm-no-suspend", &set_htm_no_suspend, |
| &get_htm_no_suspend}, |
| }; |
| static const size_t kConfigsSize = sizeof(kConfigs) / sizeof(CapabilityConfig); |
| |
| 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; |
| |
| CpuFeatures_OverrideFromHwCaps(kConfigsSize, kConfigs, |
| CpuFeatures_GetHardwareCapabilities(), |
| &info.features); |
| return info; |
| } |
| |
| static const PPCPlatformStrings kEmptyPPCPlatformStrings; |
| |
| PPCPlatformStrings GetPPCPlatformStrings(void) { |
| PPCPlatformStrings strings = kEmptyPPCPlatformStrings; |
| |
| FillProcCpuInfoData(&strings); |
| strings.type = CpuFeatures_GetPlatformType(); |
| return strings; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Introspection functions |
| |
| int GetPPCFeaturesEnumValue(const PPCFeatures* features, |
| PPCFeaturesEnum value) { |
| if(value >= kConfigsSize) |
| return false; |
| return kConfigs[value].get_bit((PPCFeatures*)features); |
| } |
| |
| const char* GetPPCFeaturesEnumName(PPCFeaturesEnum value) { |
| if(value >= kConfigsSize) |
| return "unknown feature"; |
| return kConfigs[value].proc_cpuinfo_flag; |
| } |