mirror of https://github.com/gnss-sdr/gnss-sdr
168 lines
7.7 KiB
C
168 lines
7.7 KiB
C
// SPDX-FileCopyrightText: 2018 IBM
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// SPDX-License-Identifier: Apache-2.0
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#include "cpu_features_macros.h"
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#ifdef CPU_FEATURES_ARCH_PPC
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#ifdef CPU_FEATURES_OS_LINUX
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#include "cpuinfo_ppc.h"
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////////////////////////////////////////////////////////////////////////////////
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// Definitions for introspection.
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////////////////////////////////////////////////////////////////////////////////
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#define INTROSPECTION_TABLE \
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LINE(PPC_32, ppc32, "ppc32", PPC_FEATURE_32, 0) \
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LINE(PPC_64, ppc64, "ppc64", PPC_FEATURE_64, 0) \
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LINE(PPC_601_INSTR, ppc601, "ppc601", PPC_FEATURE_601_INSTR, 0) \
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LINE(PPC_HAS_ALTIVEC, altivec, "altivec", PPC_FEATURE_HAS_ALTIVEC, 0) \
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LINE(PPC_HAS_FPU, fpu, "fpu", PPC_FEATURE_HAS_FPU, 0) \
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LINE(PPC_HAS_MMU, mmu, "mmu", PPC_FEATURE_HAS_MMU, 0) \
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LINE(PPC_HAS_4xxMAC, mac_4xx, "4xxmac", PPC_FEATURE_HAS_4xxMAC, 0) \
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LINE(PPC_UNIFIED_CACHE, unifiedcache, "ucache", PPC_FEATURE_UNIFIED_CACHE, \
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0) \
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LINE(PPC_HAS_SPE, spe, "spe", PPC_FEATURE_HAS_SPE, 0) \
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LINE(PPC_HAS_EFP_SINGLE, efpsingle, "efpsingle", PPC_FEATURE_HAS_EFP_SINGLE, \
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0) \
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LINE(PPC_HAS_EFP_DOUBLE, efpdouble, "efpdouble", PPC_FEATURE_HAS_EFP_DOUBLE, \
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0) \
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LINE(PPC_NO_TB, no_tb, "notb", PPC_FEATURE_NO_TB, 0) \
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LINE(PPC_POWER4, power4, "power4", PPC_FEATURE_POWER4, 0) \
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LINE(PPC_POWER5, power5, "power5", PPC_FEATURE_POWER5, 0) \
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LINE(PPC_POWER5_PLUS, power5plus, "power5+", PPC_FEATURE_POWER5_PLUS, 0) \
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LINE(PPC_CELL, cell, "cellbe", PPC_FEATURE_CELL, 0) \
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LINE(PPC_BOOKE, booke, "booke", PPC_FEATURE_BOOKE, 0) \
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LINE(PPC_SMT, smt, "smt", PPC_FEATURE_SMT, 0) \
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LINE(PPC_ICACHE_SNOOP, icachesnoop, "ic_snoop", PPC_FEATURE_ICACHE_SNOOP, 0) \
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LINE(PPC_ARCH_2_05, arch205, "arch_2_05", PPC_FEATURE_ARCH_2_05, 0) \
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LINE(PPC_PA6T, pa6t, "pa6t", PPC_FEATURE_PA6T, 0) \
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LINE(PPC_HAS_DFP, dfp, "dfp", PPC_FEATURE_HAS_DFP, 0) \
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LINE(PPC_POWER6_EXT, power6ext, "power6x", PPC_FEATURE_POWER6_EXT, 0) \
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LINE(PPC_ARCH_2_06, arch206, "arch_2_06", PPC_FEATURE_ARCH_2_06, 0) \
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LINE(PPC_HAS_VSX, vsx, "vsx", PPC_FEATURE_HAS_VSX, 0) \
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LINE(PPC_PSERIES_PERFMON_COMPAT, pseries_perfmon_compat, "archpmu", \
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PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0) \
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LINE(PPC_TRUE_LE, truele, "true_le", PPC_FEATURE_TRUE_LE, 0) \
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LINE(PPC_PPC_LE, ppcle, "ppcle", PPC_FEATURE_PPC_LE, 0) \
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LINE(PPC_ARCH_2_07, arch207, "arch_2_07", 0, PPC_FEATURE2_ARCH_2_07) \
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LINE(PPC_HTM, htm, "htm", 0, PPC_FEATURE2_HTM) \
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LINE(PPC_DSCR, dscr, "dscr", 0, PPC_FEATURE2_DSCR) \
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LINE(PPC_EBB, ebb, "ebb", 0, PPC_FEATURE2_EBB) \
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LINE(PPC_ISEL, isel, "isel", 0, PPC_FEATURE2_ISEL) \
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LINE(PPC_TAR, tar, "tar", 0, PPC_FEATURE2_TAR) \
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LINE(PPC_VEC_CRYPTO, vcrypto, "vcrypto", 0, PPC_FEATURE2_VEC_CRYPTO) \
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LINE(PPC_HTM_NOSC, htm_nosc, "htm-nosc", 0, PPC_FEATURE2_HTM_NOSC) \
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LINE(PPC_ARCH_3_00, arch300, "arch_3_00", 0, PPC_FEATURE2_ARCH_3_00) \
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LINE(PPC_HAS_IEEE128, ieee128, "ieee128", 0, PPC_FEATURE2_HAS_IEEE128) \
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LINE(PPC_DARN, darn, "darn", 0, PPC_FEATURE2_DARN) \
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LINE(PPC_SCV, scv, "scv", 0, PPC_FEATURE2_SCV) \
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LINE(PPC_HTM_NO_SUSPEND, htm_no_suspend, "htm-no-suspend", 0, \
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PPC_FEATURE2_HTM_NO_SUSPEND)
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#undef PPC // Remove conflict with compiler generated preprocessor
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#define INTROSPECTION_PREFIX PPC
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#define INTROSPECTION_ENUM_PREFIX PPC
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#include "define_introspection_and_hwcaps.inl"
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////////////////////////////////////////////////////////////////////////////////
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// Implementation.
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////////////////////////////////////////////////////////////////////////////////
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#include "internal/bit_utils.h"
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#include "internal/filesystem.h"
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#include "internal/hwcaps.h"
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#include "internal/stack_line_reader.h"
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#include "internal/string_view.h"
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#include <stdbool.h>
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static bool HandlePPCLine(const LineResult result,
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PPCPlatformStrings* const strings)
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{
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StringView line = result.line;
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StringView key, value;
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if (CpuFeatures_StringView_GetAttributeKeyValue(line, &key, &value))
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{
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if (CpuFeatures_StringView_HasWord(key, "platform", ' '))
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{
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CpuFeatures_StringView_CopyString(value, strings->platform,
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sizeof(strings->platform));
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}
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else if (CpuFeatures_StringView_IsEquals(key, str("model")))
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{
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CpuFeatures_StringView_CopyString(value, strings->model,
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sizeof(strings->platform));
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}
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else if (CpuFeatures_StringView_IsEquals(key, str("machine")))
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{
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CpuFeatures_StringView_CopyString(value, strings->machine,
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sizeof(strings->platform));
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}
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else if (CpuFeatures_StringView_IsEquals(key, str("cpu")))
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{
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CpuFeatures_StringView_CopyString(value, strings->cpu,
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sizeof(strings->platform));
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}
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}
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return !result.eof;
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}
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static void FillProcCpuInfoData(PPCPlatformStrings* const strings)
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{
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const int fd = CpuFeatures_OpenFile("/proc/cpuinfo");
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if (fd >= 0)
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{
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StackLineReader reader;
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StackLineReader_Initialize(&reader, fd);
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for (;;)
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{
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if (!HandlePPCLine(StackLineReader_NextLine(&reader), strings))
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{
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break;
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}
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}
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CpuFeatures_CloseFile(fd);
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}
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}
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static const PPCInfo kEmptyPPCInfo;
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PPCInfo GetPPCInfo(void)
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{
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/*
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* On Power feature flags aren't currently in cpuinfo so we only look at
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* the auxilary vector.
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*/
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PPCInfo info = kEmptyPPCInfo;
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const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
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for (size_t i = 0; i < PPC_LAST_; ++i)
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{
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if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps))
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{
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kSetters[i](&info.features, true);
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}
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}
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return info;
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}
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static const PPCPlatformStrings kEmptyPPCPlatformStrings;
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PPCPlatformStrings GetPPCPlatformStrings(void)
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{
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PPCPlatformStrings strings = kEmptyPPCPlatformStrings;
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const char* platform = CpuFeatures_GetPlatformPointer();
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const char* base_platform = CpuFeatures_GetBasePlatformPointer();
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FillProcCpuInfoData(&strings);
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if (platform != NULL)
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CpuFeatures_StringView_CopyString(str(platform), strings.type.platform,
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sizeof(strings.type.platform));
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if (base_platform != NULL)
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CpuFeatures_StringView_CopyString(str(base_platform),
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strings.type.base_platform,
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sizeof(strings.type.base_platform));
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return strings;
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}
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#endif // CPU_FEATURES_OS_LINUX
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#endif // CPU_FEATURES_ARCH_PPC
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