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abed23c3c4
Currently for each hwcap we define both the HWCAPn_NAME definition which is exposed to userspace and a kernel internal KERNEL_HWCAP_NAME definition which we use internally. This is tedious and repetitive, instead use a script to generate the KERNEL_HWCAP_ definitions from the UAPI definitions. No functional changes intended. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 ARM Ltd.
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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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#include <asm/cpufeature.h>
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#define COMPAT_HWCAP_SWP (1 << 0)
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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_26BIT (1 << 3)
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#define COMPAT_HWCAP_FAST_MULT (1 << 4)
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#define COMPAT_HWCAP_FPA (1 << 5)
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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_JAVA (1 << 8)
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#define COMPAT_HWCAP_IWMMXT (1 << 9)
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#define COMPAT_HWCAP_CRUNCH (1 << 10) /* Obsolete */
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#define COMPAT_HWCAP_THUMBEE (1 << 11)
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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_VFPV3D16 (1 << 14)
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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_VFPD32 (1 << 19)
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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_HWCAP_FPHP (1 << 22)
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#define COMPAT_HWCAP_ASIMDHP (1 << 23)
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#define COMPAT_HWCAP_ASIMDDP (1 << 24)
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#define COMPAT_HWCAP_ASIMDFHM (1 << 25)
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#define COMPAT_HWCAP_ASIMDBF16 (1 << 26)
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#define COMPAT_HWCAP_I8MM (1 << 27)
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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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#define COMPAT_HWCAP2_SB (1 << 5)
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#define COMPAT_HWCAP2_SSBS (1 << 6)
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#ifndef __ASSEMBLER__
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#include <linux/log2.h>
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/*
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* For userspace we represent hwcaps as a collection of HWCAP{,2}_x bitfields
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* as described in uapi/asm/hwcap.h. For the kernel we represent hwcaps as
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* natural numbers (in a single range of size MAX_CPU_FEATURES) defined here
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* with prefix KERNEL_HWCAP_ mapped to their HWCAP{,2}_x counterpart.
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*
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* Hwcaps should be set and tested within the kernel via the
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* cpu_{set,have}_named_feature(feature) where feature is the unique suffix
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* of KERNEL_HWCAP_{feature}.
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*/
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#define __khwcap_feature(x) const_ilog2(HWCAP_ ## x)
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#define __khwcap2_feature(x) (const_ilog2(HWCAP2_ ## x) + 64)
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#define __khwcap3_feature(x) (const_ilog2(HWCAP3_ ## x) + 128)
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#include "asm/kernel-hwcap.h"
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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 cpu_get_elf_hwcap()
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#define ELF_HWCAP2 cpu_get_elf_hwcap2()
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#define ELF_HWCAP3 cpu_get_elf_hwcap3()
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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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#define COMPAT_ELF_HWCAP3 (compat_elf_hwcap3)
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extern unsigned int compat_elf_hwcap, compat_elf_hwcap2, compat_elf_hwcap3;
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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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#endif
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#endif
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