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 */ 73