1ea3de9ceSEvan Green /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2ea3de9ceSEvan Green /* 3ea3de9ceSEvan Green * Copyright 2023 Rivos, Inc 4ea3de9ceSEvan Green */ 5ea3de9ceSEvan Green 6ea3de9ceSEvan Green #ifndef _UAPI_ASM_HWPROBE_H 7ea3de9ceSEvan Green #define _UAPI_ASM_HWPROBE_H 8ea3de9ceSEvan Green 9ea3de9ceSEvan Green #include <linux/types.h> 10ea3de9ceSEvan Green 11ea3de9ceSEvan Green /* 12ea3de9ceSEvan Green * Interface for probing hardware capabilities from userspace, see 13ed843ae9SCosta Shulyupin * Documentation/arch/riscv/hwprobe.rst for more information. 14ea3de9ceSEvan Green */ 15ea3de9ceSEvan Green struct riscv_hwprobe { 16ea3de9ceSEvan Green __s64 key; 17ea3de9ceSEvan Green __u64 value; 18ea3de9ceSEvan Green }; 19ea3de9ceSEvan Green 20ea3de9ceSEvan Green #define RISCV_HWPROBE_KEY_MVENDORID 0 21ea3de9ceSEvan Green #define RISCV_HWPROBE_KEY_MARCHID 1 22ea3de9ceSEvan Green #define RISCV_HWPROBE_KEY_MIMPID 2 2300e76e2cSEvan Green #define RISCV_HWPROBE_KEY_BASE_BEHAVIOR 3 2400e76e2cSEvan Green #define RISCV_HWPROBE_BASE_BEHAVIOR_IMA (1 << 0) 2500e76e2cSEvan Green #define RISCV_HWPROBE_KEY_IMA_EXT_0 4 2600e76e2cSEvan Green #define RISCV_HWPROBE_IMA_FD (1 << 0) 2700e76e2cSEvan Green #define RISCV_HWPROBE_IMA_C (1 << 1) 28162e4df1SAndy Chiu #define RISCV_HWPROBE_IMA_V (1 << 2) 2916252e01SPalmer Dabbelt #define RISCV_HWPROBE_EXT_ZBA (1 << 3) 3016252e01SPalmer Dabbelt #define RISCV_HWPROBE_EXT_ZBB (1 << 4) 3116252e01SPalmer Dabbelt #define RISCV_HWPROBE_EXT_ZBS (1 << 5) 329c7646d5SAndrew Jones #define RISCV_HWPROBE_EXT_ZICBOZ (1 << 6) 33be6bef2aSClément Léger #define RISCV_HWPROBE_EXT_ZBC (1 << 7) 34794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZBKB (1 << 8) 35794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZBKC (1 << 9) 36794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZBKX (1 << 10) 37794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKND (1 << 11) 38794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKNE (1 << 12) 39794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKNH (1 << 13) 40794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKSED (1 << 14) 41794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKSH (1 << 15) 42794983f2SClément Léger #define RISCV_HWPROBE_EXT_ZKT (1 << 16) 43ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVBB (1 << 17) 44ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVBC (1 << 18) 45ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKB (1 << 19) 46ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKG (1 << 20) 47ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKNED (1 << 21) 48ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKNHA (1 << 22) 49ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKNHB (1 << 23) 50ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKSED (1 << 24) 51ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKSH (1 << 25) 52ca35b5b1SClément Léger #define RISCV_HWPROBE_EXT_ZVKT (1 << 26) 53*bf4cd841SClément Léger #define RISCV_HWPROBE_EXT_ZFH (1 << 27) 54*bf4cd841SClément Léger #define RISCV_HWPROBE_EXT_ZFHMIN (1 << 28) 5562a31d6eSEvan Green #define RISCV_HWPROBE_KEY_CPUPERF_0 5 5662a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0) 5762a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0) 5862a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_SLOW (2 << 0) 5962a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_FAST (3 << 0) 6062a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0) 6162a31d6eSEvan Green #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0) 629c7646d5SAndrew Jones #define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6 63ea3de9ceSEvan Green /* Increase RISCV_HWPROBE_MAX_KEY when adding items. */ 64ea3de9ceSEvan Green 65ea3de9ceSEvan Green #endif 66