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- /* 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 */
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