dc6667a4e7
Add V-extension into riscv_isa_ext_keys array and detect it with isa string parsing. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Suggested-by: Vineet Gupta <vineetg@rivosinc.com> Co-developed-by: Andy Chiu <andy.chiu@sifive.com> Signed-off-by: Andy Chiu <andy.chiu@sifive.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Heiko Stuebner <heiko.stuebner@vrull.eu> Tested-by: Heiko Stuebner <heiko.stuebner@vrull.eu> Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/20230605110724.21391-3-andy.chiu@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
27 lines
973 B
C
27 lines
973 B
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copied from arch/arm64/include/asm/hwcap.h
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*
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* Copyright (C) 2012 ARM Ltd.
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* Copyright (C) 2017 SiFive
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*/
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#ifndef _UAPI_ASM_RISCV_HWCAP_H
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#define _UAPI_ASM_RISCV_HWCAP_H
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/*
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* Linux saves the floating-point registers according to the ISA Linux is
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* executing on, as opposed to the ISA the user program is compiled for. This
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* is necessary for a handful of esoteric use cases: for example, userspace
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* threading libraries must be able to examine the actual machine state in
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* order to fully reconstruct the state of a thread.
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*/
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#define COMPAT_HWCAP_ISA_I (1 << ('I' - 'A'))
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#define COMPAT_HWCAP_ISA_M (1 << ('M' - 'A'))
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#define COMPAT_HWCAP_ISA_A (1 << ('A' - 'A'))
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#define COMPAT_HWCAP_ISA_F (1 << ('F' - 'A'))
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#define COMPAT_HWCAP_ISA_D (1 << ('D' - 'A'))
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#define COMPAT_HWCAP_ISA_C (1 << ('C' - 'A'))
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#define COMPAT_HWCAP_ISA_V (1 << ('V' - 'A'))
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#endif /* _UAPI_ASM_RISCV_HWCAP_H */
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