ubuntu-linux-kernel/arch/riscv/include/uapi/asm/hwcap.h

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2024-04-01 15:06:58 +00:00
/*
* Copied from arch/arm64/include/asm/hwcap.h
*
* Copyright (C) 2012 ARM Ltd.
* Copyright (C) 2017 SiFive
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __UAPI_ASM_HWCAP_H
#define __UAPI_ASM_HWCAP_H
/*
* Linux saves the floating-point registers according to the ISA Linux is
* executing on, as opposed to the ISA the user program is compiled for. This
* is necessary for a handful of esoteric use cases: for example, userpsace
* threading libraries must be able to examine the actual machine state in
* order to fully reconstruct the state of a thread.
*/
#define COMPAT_HWCAP_ISA_I (1 << ('I' - 'A'))
#define COMPAT_HWCAP_ISA_M (1 << ('M' - 'A'))
#define COMPAT_HWCAP_ISA_A (1 << ('A' - 'A'))
#define COMPAT_HWCAP_ISA_F (1 << ('F' - 'A'))
#define COMPAT_HWCAP_ISA_D (1 << ('D' - 'A'))
#define COMPAT_HWCAP_ISA_C (1 << ('C' - 'A'))
#endif