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37b01d53ce
Extend struct arm64_cpu_capabilities to handle the HWCAP detection and make use of the system wide value of the feature registers for a reliable set of HWCAPs. Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Tested-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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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 __ASM_HWCAP_H
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#define __ASM_HWCAP_H
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#include <uapi/asm/hwcap.h>
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#define COMPAT_HWCAP_HALF (1 << 1)
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#define COMPAT_HWCAP_THUMB (1 << 2)
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#define COMPAT_HWCAP_FAST_MULT (1 << 4)
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#define COMPAT_HWCAP_VFP (1 << 6)
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#define COMPAT_HWCAP_EDSP (1 << 7)
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#define COMPAT_HWCAP_NEON (1 << 12)
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#define COMPAT_HWCAP_VFPv3 (1 << 13)
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#define COMPAT_HWCAP_TLS (1 << 15)
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#define COMPAT_HWCAP_VFPv4 (1 << 16)
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#define COMPAT_HWCAP_IDIVA (1 << 17)
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#define COMPAT_HWCAP_IDIVT (1 << 18)
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#define COMPAT_HWCAP_IDIV (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
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#define COMPAT_HWCAP_LPAE (1 << 20)
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#define COMPAT_HWCAP_EVTSTRM (1 << 21)
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#define COMPAT_HWCAP2_AES (1 << 0)
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#define COMPAT_HWCAP2_PMULL (1 << 1)
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#define COMPAT_HWCAP2_SHA1 (1 << 2)
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#define COMPAT_HWCAP2_SHA2 (1 << 3)
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#define COMPAT_HWCAP2_CRC32 (1 << 4)
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#ifndef __ASSEMBLY__
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/*
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* This yields a mask that user programs can use to figure out what
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* instruction set this cpu supports.
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*/
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#define ELF_HWCAP (elf_hwcap)
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#ifdef CONFIG_COMPAT
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#define COMPAT_ELF_HWCAP (compat_elf_hwcap)
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#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2)
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extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
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#endif
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enum {
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CAP_HWCAP = 1,
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#ifdef CONFIG_COMPAT
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CAP_COMPAT_HWCAP,
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CAP_COMPAT_HWCAP2,
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#endif
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};
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extern unsigned long elf_hwcap;
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#endif
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#endif
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