/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2020 Loongson Technology Corporation Limited */ #ifndef __ASM_CPU_FEATURES_H #define __ASM_CPU_FEATURES_H #include #include #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) #define cpu_has_matc_guest (cpu_data[0].guest_cfg & (1 << 0)) #define cpu_has_matc_root (cpu_data[0].guest_cfg & (1 << 1)) #define cpu_has_matc_nest (cpu_data[0].guest_cfg & (1 << 2)) #define cpu_has_sitp (cpu_data[0].guest_cfg & (1 << 6)) #define cpu_has_titp (cpu_data[0].guest_cfg & (1 << 8)) #define cpu_has_toep (cpu_data[0].guest_cfg & (1 << 10)) #define cpu_has_topp (cpu_data[0].guest_cfg & (1 << 12)) #define cpu_has_torup (cpu_data[0].guest_cfg & (1 << 14)) #define cpu_has_gcip_all (cpu_data[0].guest_cfg & (1 << 16)) #define cpu_has_gcip_hit (cpu_data[0].guest_cfg & (1 << 17)) #define cpu_has_gcip_secure (cpu_data[0].guest_cfg & (1 << 18)) /* * Guest capabilities */ #define cpu_guest_has_conf1 (cpu_data[0].guest.conf & (1 << 1)) #define cpu_guest_has_conf2 (cpu_data[0].guest.conf & (1 << 2)) #define cpu_guest_has_conf3 (cpu_data[0].guest.conf & (1 << 3)) #define cpu_guest_has_fpu (cpu_data[0].guest.options & LOONGARCH_CPU_FPU) #define cpu_guest_has_perf (cpu_data[0].guest.options & LOONGARCH_CPU_PMP) #define cpu_guest_has_watch (cpu_data[0].guest.options & LOONGARCH_CPU_WATCH) #define cpu_guest_has_lsx (cpu_data[0].guest.ases & LOONGARCH_ASE_LSX) #define cpu_guest_has_kscr(n) (cpu_data[0].guest.kscratch_mask & (1u << (n))) /* * Guest dynamic capabilities */ #define cpu_guest_has_dyn_fpu (cpu_data[0].guest.options_dyn & LOONGARCH_CPU_FPU) #define cpu_guest_has_dyn_perf (cpu_data[0].guest.options_dyn & LOONGARCH_CPU_PMP) #define cpu_guest_has_dyn_lsx (cpu_data[0].guest.ases_dyn & LOONGARCH_ASE_LSX) #endif /* __ASM_CPU_FEATURES_H */