linux_kernel/arch/riscv/include/uapi/asm/hwcap.h

/*
 * 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