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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 __ASSEMBLY__
#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_PAN:
return IS_ENABLED(CONFIG_ARM64_PAN);
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_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_WORKAROUND_SPECULATIVE_SSBS);
}
return true;
}
#endif /* __ASSEMBLY__ */
#endif /* __ASM_CPUCAPS_H */