12559b2c8SAntonio Nino Diaz /* 2*fd1dd4cbSAndre Przywara * Copyright (c) 2019-2023, Arm Limited. All rights reserved. 32559b2c8SAntonio Nino Diaz * 42559b2c8SAntonio Nino Diaz * SPDX-License-Identifier: BSD-3-Clause 52559b2c8SAntonio Nino Diaz */ 62559b2c8SAntonio Nino Diaz 72559b2c8SAntonio Nino Diaz #ifndef ARCH_FEATURES_H 82559b2c8SAntonio Nino Diaz #define ARCH_FEATURES_H 92559b2c8SAntonio Nino Diaz 102559b2c8SAntonio Nino Diaz #include <stdbool.h> 112559b2c8SAntonio Nino Diaz 122559b2c8SAntonio Nino Diaz #include <arch_helpers.h> 132559b2c8SAntonio Nino Diaz 14*fd1dd4cbSAndre Przywara #define ISOLATE_FIELD(reg, feat) \ 15*fd1dd4cbSAndre Przywara ((unsigned int)(((reg) >> (feat ## _SHIFT)) & (feat ## _MASK))) 16*fd1dd4cbSAndre Przywara 1729a24134SAntonio Nino Diaz static inline bool is_armv7_gentimer_present(void) 1829a24134SAntonio Nino Diaz { 19*fd1dd4cbSAndre Przywara return ISOLATE_FIELD(read_id_pfr1(), ID_PFR1_GENTIMER) != 0U; 2029a24134SAntonio Nino Diaz } 2129a24134SAntonio Nino Diaz 222559b2c8SAntonio Nino Diaz static inline bool is_armv8_2_ttcnp_present(void) 232559b2c8SAntonio Nino Diaz { 24*fd1dd4cbSAndre Przywara return ISOLATE_FIELD(read_id_mmfr4(), ID_MMFR4_CNP) != 0U; 252559b2c8SAntonio Nino Diaz } 262559b2c8SAntonio Nino Diaz 272559b2c8SAntonio Nino Diaz #endif /* ARCH_FEATURES_H */ 28