/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 *
 * Derived from MIPS:
 * Copyright (C) 2003, 2004 Ralf Baechle
 * Copyright (C) 2004  Maciej W. Rozycki
 */
#ifndef __ASM_CPU_FEATURES_H
#define __ASM_CPU_FEATURES_H

#include <asm/cpu.h>
#include <asm/cpu-info.h>

#define cpu_opt(opt)            (cpu_data[0].options & (opt))
#define cpu_has(feat)            (cpu_data[0].options & BIT_ULL(feat))

#define cpu_has_loongarch        (cpu_has_loongarch32 | cpu_has_loongarch64)
#define cpu_has_loongarch32        (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_32BIT)
#define cpu_has_loongarch64        (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)

#ifdef CONFIG_32BIT
# define cpu_has_64bits            (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)
# define cpu_vabits            31
# define cpu_pabits            31
#endif

#ifdef CONFIG_64BIT
# define cpu_has_64bits            1
# define cpu_vabits            cpu_data[0].vabits
# define cpu_pabits            cpu_data[0].pabits
# define __NEED_ADDRBITS_PROBE
#endif

/*
 * SMP assumption: Options of CPU 0 are a superset of all processors.
 * This is true for all known LoongArch systems.
 */
#define cpu_has_cpucfg        cpu_opt(LOONGARCH_CPU_CPUCFG)
#define cpu_has_lam        cpu_opt(LOONGARCH_CPU_LAM)
#define cpu_has_ual        cpu_opt(LOONGARCH_CPU_UAL)
#define cpu_has_fpu        cpu_opt(LOONGARCH_CPU_FPU)
#define cpu_has_lsx        cpu_opt(LOONGARCH_CPU_LSX)
#define cpu_has_lasx        cpu_opt(LOONGARCH_CPU_LASX)
#define cpu_has_crc32        cpu_opt(LOONGARCH_CPU_CRC32)
#define cpu_has_complex        cpu_opt(LOONGARCH_CPU_COMPLEX)
#define cpu_has_crypto        cpu_opt(LOONGARCH_CPU_CRYPTO)
#define cpu_has_lvz        cpu_opt(LOONGARCH_CPU_LVZ)
#define cpu_has_lbt_x86        cpu_opt(LOONGARCH_CPU_LBT_X86)
#define cpu_has_lbt_arm        cpu_opt(LOONGARCH_CPU_LBT_ARM)
#define cpu_has_lbt_mips    cpu_opt(LOONGARCH_CPU_LBT_MIPS)
#define cpu_has_lbt        (cpu_has_lbt_x86|cpu_has_lbt_arm|cpu_has_lbt_mips)
#define cpu_has_csr        cpu_opt(LOONGARCH_CPU_CSR)
#define cpu_has_tlb        cpu_opt(LOONGARCH_CPU_TLB)
#define cpu_has_watch        cpu_opt(LOONGARCH_CPU_WATCH)
#define cpu_has_vint        cpu_opt(LOONGARCH_CPU_VINT)
#define cpu_has_csripi        cpu_opt(LOONGARCH_CPU_CSRIPI)
#define cpu_has_extioi        cpu_opt(LOONGARCH_CPU_EXTIOI)
#define cpu_has_prefetch    cpu_opt(LOONGARCH_CPU_PREFETCH)
#define cpu_has_pmp        cpu_opt(LOONGARCH_CPU_PMP)
#define cpu_has_perf        cpu_opt(LOONGARCH_CPU_PMP)
#define cpu_has_scalefreq    cpu_opt(LOONGARCH_CPU_SCALEFREQ)
#define cpu_has_flatmode    cpu_opt(LOONGARCH_CPU_FLATMODE)
#define cpu_has_eiodecode    cpu_opt(LOONGARCH_CPU_EIODECODE)
#define cpu_has_guestid        cpu_opt(LOONGARCH_CPU_GUESTID)
#define cpu_has_hypervisor    cpu_opt(LOONGARCH_CPU_HYPERVISOR)
#define cpu_has_ptw        cpu_opt(LOONGARCH_CPU_PTW)

#endif /* __ASM_CPU_FEATURES_H */