/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef __ASM_CPUCAPS_H
#define __ASM_CPUCAPS_H

#include <asm/cpucap-defs.h>

#ifndef __ASSEMBLER__
#include <linux/types.h>
/*
 * Check whether a cpucap is possible at compiletime.
 */
static __always_inline bool
cpucap_is_possible(const unsigned int cap)
{
        compiletime_assert(__builtin_constant_p(cap),
                           "cap must be a constant");
        compiletime_assert(cap < ARM64_NCAPS,
                           "cap must be < ARM64_NCAPS");

        switch (cap) {
        case ARM64_HAS_EPAN:
                return IS_ENABLED(CONFIG_ARM64_EPAN);
        case ARM64_SVE:
                return IS_ENABLED(CONFIG_ARM64_SVE);
        case ARM64_SME:
        case ARM64_SME2:
        case ARM64_SME_FA64:
                return IS_ENABLED(CONFIG_ARM64_SME);
        case ARM64_HAS_CNP:
                return IS_ENABLED(CONFIG_ARM64_CNP);
        case ARM64_HAS_ADDRESS_AUTH:
        case ARM64_HAS_GENERIC_AUTH:
                return IS_ENABLED(CONFIG_ARM64_PTR_AUTH);
        case ARM64_HAS_GIC_PRIO_MASKING:
                return IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI);
        case ARM64_MTE:
                return IS_ENABLED(CONFIG_ARM64_MTE);
        case ARM64_BTI:
                return IS_ENABLED(CONFIG_ARM64_BTI);
        case ARM64_HAS_TLB_RANGE:
                return IS_ENABLED(CONFIG_ARM64_TLB_RANGE);
        case ARM64_HAS_S1POE:
                return IS_ENABLED(CONFIG_ARM64_POE);
        case ARM64_HAS_GCS:
                return IS_ENABLED(CONFIG_ARM64_GCS);
        case ARM64_HAFT:
                return IS_ENABLED(CONFIG_ARM64_HAFT);
        case ARM64_UNMAP_KERNEL_AT_EL0:
                return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0);
        case ARM64_WORKAROUND_843419:
                return IS_ENABLED(CONFIG_ARM64_ERRATUM_843419);
        case ARM64_WORKAROUND_1742098:
                return IS_ENABLED(CONFIG_ARM64_ERRATUM_1742098);
        case ARM64_WORKAROUND_2645198:
                return IS_ENABLED(CONFIG_ARM64_ERRATUM_2645198);
        case ARM64_WORKAROUND_2658417:
                return IS_ENABLED(CONFIG_ARM64_ERRATUM_2658417);
        case ARM64_WORKAROUND_CAVIUM_23154:
                return IS_ENABLED(CONFIG_CAVIUM_ERRATUM_23154);
        case ARM64_WORKAROUND_NVIDIA_CARMEL_CNP:
                return IS_ENABLED(CONFIG_NVIDIA_CARMEL_CNP_ERRATUM);
        case ARM64_WORKAROUND_REPEAT_TLBI:
                return IS_ENABLED(CONFIG_ARM64_WORKAROUND_REPEAT_TLBI);
        case ARM64_WORKAROUND_SPECULATIVE_SSBS:
                return IS_ENABLED(CONFIG_ARM64_ERRATUM_3194386);
        case ARM64_MPAM:
                /*
                 * KVM MPAM support doesn't rely on the host kernel supporting MPAM.
                */
                return true;
        case ARM64_HAS_PMUV3:
                return IS_ENABLED(CONFIG_HW_PERF_EVENTS);
        }

        return true;
}
#endif /* __ASSEMBLER__ */

#endif /* __ASM_CPUCAPS_H */