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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
4 *
5 * Derived from MIPS:
6 * Copyright (C) 2003, 2004 Ralf Baechle
7 * Copyright (C) 2004 Maciej W. Rozycki
8 */
9#ifndef __ASM_CPU_FEATURES_H
10#define __ASM_CPU_FEATURES_H
11
12#include <asm/cpu.h>
13#include <asm/cpu-info.h>
14
15#define cpu_opt(opt) (cpu_data[0].options & (opt))
16#define cpu_has(feat) (cpu_data[0].options & BIT_ULL(feat))
17
18#define cpu_has_loongarch (cpu_has_loongarch32 | cpu_has_loongarch64)
19#define cpu_has_loongarch32 (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_32BIT)
20#define cpu_has_loongarch64 (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)
21
22#ifdef CONFIG_32BIT
23# define cpu_has_64bits (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)
24# define cpu_vabits 31
25# define cpu_pabits 31
26#endif
27
28#ifdef CONFIG_64BIT
29# define cpu_has_64bits 1
30# define cpu_vabits cpu_data[0].vabits
31# define cpu_pabits cpu_data[0].pabits
32# define __NEED_ADDRBITS_PROBE
33#endif
34
35/*
36 * SMP assumption: Options of CPU 0 are a superset of all processors.
37 * This is true for all known LoongArch systems.
38 */
39#define cpu_has_cpucfg cpu_opt(LOONGARCH_CPU_CPUCFG)
40#define cpu_has_lam cpu_opt(LOONGARCH_CPU_LAM)
41#define cpu_has_ual cpu_opt(LOONGARCH_CPU_UAL)
42#define cpu_has_fpu cpu_opt(LOONGARCH_CPU_FPU)
43#define cpu_has_lsx cpu_opt(LOONGARCH_CPU_LSX)
44#define cpu_has_lasx cpu_opt(LOONGARCH_CPU_LASX)
45#define cpu_has_crc32 cpu_opt(LOONGARCH_CPU_CRC32)
46#define cpu_has_complex cpu_opt(LOONGARCH_CPU_COMPLEX)
47#define cpu_has_crypto cpu_opt(LOONGARCH_CPU_CRYPTO)
48#define cpu_has_lvz cpu_opt(LOONGARCH_CPU_LVZ)
49#define cpu_has_lbt_x86 cpu_opt(LOONGARCH_CPU_LBT_X86)
50#define cpu_has_lbt_arm cpu_opt(LOONGARCH_CPU_LBT_ARM)
51#define cpu_has_lbt_mips cpu_opt(LOONGARCH_CPU_LBT_MIPS)
52#define cpu_has_lbt (cpu_has_lbt_x86|cpu_has_lbt_arm|cpu_has_lbt_mips)
53#define cpu_has_csr cpu_opt(LOONGARCH_CPU_CSR)
54#define cpu_has_iocsr cpu_opt(LOONGARCH_CPU_IOCSR)
55#define cpu_has_tlb cpu_opt(LOONGARCH_CPU_TLB)
56#define cpu_has_watch cpu_opt(LOONGARCH_CPU_WATCH)
57#define cpu_has_vint cpu_opt(LOONGARCH_CPU_VINT)
58#define cpu_has_csripi cpu_opt(LOONGARCH_CPU_CSRIPI)
59#define cpu_has_extioi cpu_opt(LOONGARCH_CPU_EXTIOI)
60#define cpu_has_prefetch cpu_opt(LOONGARCH_CPU_PREFETCH)
61#define cpu_has_pmp cpu_opt(LOONGARCH_CPU_PMP)
62#define cpu_has_perf cpu_opt(LOONGARCH_CPU_PMP)
63#define cpu_has_scalefreq cpu_opt(LOONGARCH_CPU_SCALEFREQ)
64#define cpu_has_flatmode cpu_opt(LOONGARCH_CPU_FLATMODE)
65#define cpu_has_eiodecode cpu_opt(LOONGARCH_CPU_EIODECODE)
66#define cpu_has_guestid cpu_opt(LOONGARCH_CPU_GUESTID)
67#define cpu_has_hypervisor cpu_opt(LOONGARCH_CPU_HYPERVISOR)
68#define cpu_has_ptw cpu_opt(LOONGARCH_CPU_PTW)
69#define cpu_has_lspw cpu_opt(LOONGARCH_CPU_LSPW)
70#define cpu_has_avecint cpu_opt(LOONGARCH_CPU_AVECINT)
71
72#endif /* __ASM_CPU_FEATURES_H */