| Antonio Nino Diaz | 2559b2c | 2019-01-11 11:20:10 +0000 | [diff] [blame] | 1 | /* |
| Andre Przywara | fd1dd4c | 2023-01-25 12:26:14 +0000 | [diff] [blame^] | 2 | * Copyright (c) 2019-2023, Arm Limited. All rights reserved. |
| Antonio Nino Diaz | 2559b2c | 2019-01-11 11:20:10 +0000 | [diff] [blame] | 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 | |
| Andre Przywara | fd1dd4c | 2023-01-25 12:26:14 +0000 | [diff] [blame^] | 14 | #define ISOLATE_FIELD(reg, feat) \ |
| 15 | ((unsigned int)(((reg) >> (feat ## _SHIFT)) & (feat ## _MASK))) |
| 16 | |
| Antonio Nino Diaz | 29a2413 | 2019-02-06 09:23:04 +0000 | [diff] [blame] | 17 | static inline bool is_armv7_gentimer_present(void) |
| 18 | { |
| Andre Przywara | fd1dd4c | 2023-01-25 12:26:14 +0000 | [diff] [blame^] | 19 | return ISOLATE_FIELD(read_id_pfr1(), ID_PFR1_GENTIMER) != 0U; |
| Antonio Nino Diaz | 29a2413 | 2019-02-06 09:23:04 +0000 | [diff] [blame] | 20 | } |
| 21 | |
| Antonio Nino Diaz | 2559b2c | 2019-01-11 11:20:10 +0000 | [diff] [blame] | 22 | static inline bool is_armv8_2_ttcnp_present(void) |
| 23 | { |
| Andre Przywara | fd1dd4c | 2023-01-25 12:26:14 +0000 | [diff] [blame^] | 24 | return ISOLATE_FIELD(read_id_mmfr4(), ID_MMFR4_CNP) != 0U; |
| Antonio Nino Diaz | 2559b2c | 2019-01-11 11:20:10 +0000 | [diff] [blame] | 25 | } |
| 26 | |
| 27 | #endif /* ARCH_FEATURES_H */ |