/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright 2023 Rivos, Inc */ #ifndef _UAPI_ASM_HWPROBE_H #define _UAPI_ASM_HWPROBE_H #include <linux/types.h> /* * Interface for probing hardware capabilities from userspace, see * Documentation/riscv/hwprobe.rst for more information. */ struct riscv_hwprobe { __s64 key; __u64 value; }; #define RISCV_HWPROBE_KEY_MVENDORID 0 #define RISCV_HWPROBE_KEY_MARCHID 1 #define RISCV_HWPROBE_KEY_MIMPID 2 #define RISCV_HWPROBE_KEY_BASE_BEHAVIOR 3 #define RISCV_HWPROBE_BASE_BEHAVIOR_IMA (1 << 0) #define RISCV_HWPROBE_KEY_IMA_EXT_0 4 #define RISCV_HWPROBE_IMA_FD (1 << 0) #define RISCV_HWPROBE_IMA_C (1 << 1) #define RISCV_HWPROBE_KEY_CPUPERF_0 5 #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0) #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0) #define RISCV_HWPROBE_MISALIGNED_SLOW (2 << 0) #define RISCV_HWPROBE_MISALIGNED_FAST (3 << 0) #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0) #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0) /* Increase RISCV_HWPROBE_MAX_KEY when adding items. */ #endif