Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ASM_CPUCAPS_H
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#define __ASM_CPUCAPS_H
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#include <asm/cpucap-defs.h>
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#ifndef __ASSEMBLER__
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#include <linux/types.h>
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/*
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* Check whether a cpucap is possible at compiletime.
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*/
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static __always_inline bool
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cpucap_is_possible(const unsigned int cap)
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{
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compiletime_assert(__builtin_constant_p(cap),
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"cap must be a constant");
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compiletime_assert(cap < ARM64_NCAPS,
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"cap must be < ARM64_NCAPS");
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switch (cap) {
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case ARM64_HAS_PAN:
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return IS_ENABLED(CONFIG_ARM64_PAN);
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case ARM64_HAS_EPAN:
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return IS_ENABLED(CONFIG_ARM64_EPAN);
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case ARM64_SVE:
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return IS_ENABLED(CONFIG_ARM64_SVE);
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case ARM64_SME:
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case ARM64_SME2:
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case ARM64_SME_FA64:
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return IS_ENABLED(CONFIG_ARM64_SME);
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case ARM64_HAS_CNP:
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return IS_ENABLED(CONFIG_ARM64_CNP);
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case ARM64_HAS_ADDRESS_AUTH:
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case ARM64_HAS_GENERIC_AUTH:
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return IS_ENABLED(CONFIG_ARM64_PTR_AUTH);
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case ARM64_HAS_GIC_PRIO_MASKING:
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return IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI);
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case ARM64_MTE:
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return IS_ENABLED(CONFIG_ARM64_MTE);
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case ARM64_BTI:
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return IS_ENABLED(CONFIG_ARM64_BTI);
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case ARM64_HAS_TLB_RANGE:
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return IS_ENABLED(CONFIG_ARM64_TLB_RANGE);
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case ARM64_HAS_S1POE:
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return IS_ENABLED(CONFIG_ARM64_POE);
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case ARM64_HAS_GCS:
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return IS_ENABLED(CONFIG_ARM64_GCS);
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case ARM64_HAFT:
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return IS_ENABLED(CONFIG_ARM64_HAFT);
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case ARM64_UNMAP_KERNEL_AT_EL0:
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return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0);
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case ARM64_WORKAROUND_843419:
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return IS_ENABLED(CONFIG_ARM64_ERRATUM_843419);
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case ARM64_WORKAROUND_1742098:
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return IS_ENABLED(CONFIG_ARM64_ERRATUM_1742098);
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case ARM64_WORKAROUND_2645198:
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return IS_ENABLED(CONFIG_ARM64_ERRATUM_2645198);
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case ARM64_WORKAROUND_2658417:
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return IS_ENABLED(CONFIG_ARM64_ERRATUM_2658417);
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case ARM64_WORKAROUND_CAVIUM_23154:
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return IS_ENABLED(CONFIG_CAVIUM_ERRATUM_23154);
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case ARM64_WORKAROUND_NVIDIA_CARMEL_CNP:
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return IS_ENABLED(CONFIG_NVIDIA_CARMEL_CNP_ERRATUM);
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case ARM64_WORKAROUND_REPEAT_TLBI:
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return IS_ENABLED(CONFIG_ARM64_WORKAROUND_REPEAT_TLBI);
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case ARM64_WORKAROUND_SPECULATIVE_SSBS:
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return IS_ENABLED(CONFIG_ARM64_ERRATUM_3194386);
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case ARM64_MPAM:
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/*
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* KVM MPAM support doesn't rely on the host kernel supporting MPAM.
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*/
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return true;
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case ARM64_HAS_PMUV3:
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return IS_ENABLED(CONFIG_HW_PERF_EVENTS);
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}
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return true;
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}
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#endif /* __ASSEMBLER__ */
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#endif /* __ASM_CPUCAPS_H */
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