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Diffstat (limited to 'src/common/cpuinfo/CpuIsaInfo.h')
-rw-r--r-- | src/common/cpuinfo/CpuIsaInfo.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/common/cpuinfo/CpuIsaInfo.h b/src/common/cpuinfo/CpuIsaInfo.h new file mode 100644 index 0000000000..1125f766dd --- /dev/null +++ b/src/common/cpuinfo/CpuIsaInfo.h @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2021 Arm Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef SRC_COMMON_CPUINFO_CPUISAINFO_H +#define SRC_COMMON_CPUINFO_CPUISAINFO_H + +#include <cstdint> + +namespace arm_compute +{ +namespace cpuinfo +{ +/** CPU ISA (Instruction Set Architecture) information + * + * Contains ISA related information around the Arm architecture + */ +struct CpuIsaInfo +{ + /* SIMD extension support */ + bool neon{ false }; + bool sve{ false }; + bool sve2{ false }; + + /* Data-type extensions support */ + bool fp16{ false }; + bool bf16{ false }; + + /* Instruction support */ + bool dot{ false }; + bool immla{ false }; + bool fmmla{ false }; +}; + +/** Identify ISA related information through system information + * + * @param[in] hwcaps HWCAPS feature information + * @param[in] hwcaps2 HWCAPS2 feature information + * @param[in] midr MIDR value + * + * @return CpuIsaInfo A populated ISA feature structure + */ +CpuIsaInfo init_cpu_isa_from_hwcaps(uint32_t hwcaps, uint32_t hwcaps2, uint32_t midr); + +/** Identify ISA related information through register information + * + * @param[in] isar0 Value of Instruction Set Attribute Register 0 (ID_AA64ISAR0_EL1) + * @param[in] isar1 Value of Instruction Set Attribute Register 1 (ID_AA64ISAR1_EL1) + * @param[in] pfr0 Value of Processor Feature Register 0 (ID_AA64PFR0_EL1) + * @param[in] svefr0 Value of SVE feature ID register 0 (ID_AA64ZFR0_EL1) + * @param[in] midr Value of Main ID Register (MIDR) + * + * @return CpuIsaInfo A populated ISA feature structure + */ +CpuIsaInfo init_cpu_isa_from_regs(uint64_t isar0, uint64_t isar1, uint64_t pfr0, uint64_t svefr0, uint64_t midr); +} // namespace cpuinfo +} // namespace arm_compute + +#endif /* SRC_COMMON_CPUINFO_CPUISAINFO_H */ |