Viewing file:  hwprobe.h (2.61 KB) -rw-r--r--
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/* 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/arch/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_IMA_V (1 << 2)
#define RISCV_HWPROBE_EXT_ZBA (1 << 3)
#define RISCV_HWPROBE_EXT_ZBB (1 << 4)
#define RISCV_HWPROBE_EXT_ZBS (1 << 5)
#define RISCV_HWPROBE_EXT_ZICBOZ (1 << 6)
#define RISCV_HWPROBE_EXT_ZBC (1 << 7)
#define RISCV_HWPROBE_EXT_ZBKB (1 << 8)
#define RISCV_HWPROBE_EXT_ZBKC (1 << 9)
#define RISCV_HWPROBE_EXT_ZBKX (1 << 10)
#define RISCV_HWPROBE_EXT_ZKND (1 << 11)
#define RISCV_HWPROBE_EXT_ZKNE (1 << 12)
#define RISCV_HWPROBE_EXT_ZKNH (1 << 13)
#define RISCV_HWPROBE_EXT_ZKSED (1 << 14)
#define RISCV_HWPROBE_EXT_ZKSH (1 << 15)
#define RISCV_HWPROBE_EXT_ZKT (1 << 16)
#define RISCV_HWPROBE_EXT_ZVBB (1 << 17)
#define RISCV_HWPROBE_EXT_ZVBC (1 << 18)
#define RISCV_HWPROBE_EXT_ZVKB (1 << 19)
#define RISCV_HWPROBE_EXT_ZVKG (1 << 20)
#define RISCV_HWPROBE_EXT_ZVKNED (1 << 21)
#define RISCV_HWPROBE_EXT_ZVKNHA (1 << 22)
#define RISCV_HWPROBE_EXT_ZVKNHB (1 << 23)
#define RISCV_HWPROBE_EXT_ZVKSED (1 << 24)
#define RISCV_HWPROBE_EXT_ZVKSH (1 << 25)
#define RISCV_HWPROBE_EXT_ZVKT (1 << 26)
#define RISCV_HWPROBE_EXT_ZFH (1 << 27)
#define RISCV_HWPROBE_EXT_ZFHMIN (1 << 28)
#define RISCV_HWPROBE_EXT_ZIHINTNTL (1 << 29)
#define RISCV_HWPROBE_EXT_ZVFH (1 << 30)
#define RISCV_HWPROBE_EXT_ZVFHMIN (1ULL << 31)
#define RISCV_HWPROBE_EXT_ZFA (1ULL << 32)
#define RISCV_HWPROBE_EXT_ZTSO (1ULL << 33)
#define RISCV_HWPROBE_EXT_ZACAS (1ULL << 34)
#define RISCV_HWPROBE_EXT_ZICOND (1ULL << 35)
#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)
#define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6
/* Increase RISCV_HWPROBE_MAX_KEY when adding items. */
/* Flags */
#define RISCV_HWPROBE_WHICH_CPUS (1 << 0)
#endif
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