| /* |
| * Copyright (c) 2019-2021, Arm Limited. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef ARCH_FEATURES_H |
| #define ARCH_FEATURES_H |
| |
| #include <stdbool.h> |
| |
| #include <arch_helpers.h> |
| |
| static inline bool is_armv7_gentimer_present(void) |
| { |
| return ((read_id_pfr1() >> ID_PFR1_GENTIMER_SHIFT) & |
| ID_PFR1_GENTIMER_MASK) != 0U; |
| } |
| |
| static inline bool is_armv8_2_sve_present(void) |
| { |
| /* SVE is not usable in aarch32 */ |
| return false; |
| } |
| |
| static inline bool is_armv8_2_ttcnp_present(void) |
| { |
| return ((read_id_mmfr4() >> ID_MMFR4_CNP_SHIFT) & |
| ID_MMFR4_CNP_MASK) != 0U; |
| } |
| |
| static inline uint32_t arch_get_debug_version(void) |
| { |
| return ((read_dbgdidr() & DBGDIDR_VERSION_BITS) >> |
| DBGDIDR_VERSION_SHIFT); |
| } |
| |
| static inline bool get_armv8_4_trf_support(void) |
| { |
| return ((read_id_dfr0() >> ID_DFR0_TRACEFILT_SHIFT) & |
| ID_DFR0_TRACEFILT_MASK) == |
| ID_DFR0_TRACEFILT_SUPPORTED; |
| } |
| |
| static inline bool get_armv8_0_sys_reg_trace_support(void) |
| { |
| return ((read_id_dfr0() >> ID_DFR0_COPTRC_SHIFT) & |
| ID_DFR0_COPTRC_MASK) == |
| ID_DFR0_COPTRC_SUPPORTED; |
| } |
| |
| static inline unsigned int get_armv9_2_feat_rme_support(void) |
| { |
| return 0; |
| } |
| #endif /* ARCH_FEATURES_H */ |