3b3b681097
ARM v8.4 extensions add new neon instructions for performing a multiplication of each FP16 element of one vector with the corresponding FP16 element of a second vector, and to add or subtract this without an intermediate rounding to the corresponding FP32 element in a third vector. This patch detects this feature and let the userspace know about it via a HWCAP bit and MRS emulation. Cc: Dave Martin <Dave.Martin@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _UAPI__ASM_HWCAP_H
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#define _UAPI__ASM_HWCAP_H
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/*
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* HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
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*/
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#define HWCAP_FP (1 << 0)
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#define HWCAP_ASIMD (1 << 1)
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#define HWCAP_EVTSTRM (1 << 2)
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#define HWCAP_AES (1 << 3)
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#define HWCAP_PMULL (1 << 4)
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#define HWCAP_SHA1 (1 << 5)
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#define HWCAP_SHA2 (1 << 6)
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#define HWCAP_CRC32 (1 << 7)
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#define HWCAP_ATOMICS (1 << 8)
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#define HWCAP_FPHP (1 << 9)
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#define HWCAP_ASIMDHP (1 << 10)
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#define HWCAP_CPUID (1 << 11)
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#define HWCAP_ASIMDRDM (1 << 12)
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#define HWCAP_JSCVT (1 << 13)
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#define HWCAP_FCMA (1 << 14)
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#define HWCAP_LRCPC (1 << 15)
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#define HWCAP_DCPOP (1 << 16)
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#define HWCAP_SHA3 (1 << 17)
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#define HWCAP_SM3 (1 << 18)
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#define HWCAP_SM4 (1 << 19)
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#define HWCAP_ASIMDDP (1 << 20)
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#define HWCAP_SHA512 (1 << 21)
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#define HWCAP_SVE (1 << 22)
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#define HWCAP_ASIMDFHM (1 << 23)
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#endif /* _UAPI__ASM_HWCAP_H */
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