1 /* 2 * Copyright (c) 2019, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef ARCH_FEATURES_H 8 #define ARCH_FEATURES_H 9 10 #include <stdbool.h> 11 12 #include <arch_helpers.h> 13 14 static inline bool is_armv8_2_ttcnp_present(void) 15 { 16 return ((read_id_mmfr4() >> ID_MMFR4_CNP_SHIFT) & 17 ID_MMFR4_CNP_MASK) != 0U; 18 } 19 20 #endif /* ARCH_FEATURES_H */ 21