diff options
Diffstat (limited to 'include/arch/aarch64/arch_features.h')
| -rw-r--r-- | include/arch/aarch64/arch_features.h | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/include/arch/aarch64/arch_features.h b/include/arch/aarch64/arch_features.h index 0491f48c6..671b3dc60 100644 --- a/include/arch/aarch64/arch_features.h +++ b/include/arch/aarch64/arch_features.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019, Arm Limited. All rights reserved. + * Copyright (c) 2019-2020, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -52,4 +52,51 @@ static inline unsigned int get_armv8_5_mte_support(void) ID_AA64PFR1_EL1_MTE_MASK); } +static inline bool is_armv8_4_sel2_present(void) +{ + return ((read_id_aa64pfr0_el1() >> ID_AA64PFR0_SEL2_SHIFT) & + ID_AA64PFR0_SEL2_MASK) == 1ULL; +} + +static inline bool is_armv8_6_twed_present(void) +{ + return (((read_id_aa64mmfr1_el1() >> ID_AA64MMFR1_EL1_TWED_SHIFT) & + ID_AA64MMFR1_EL1_TWED_MASK) == ID_AA64MMFR1_EL1_TWED_SUPPORTED); +} + +static inline bool is_armv8_6_fgt_present(void) +{ + return ((read_id_aa64mmfr0_el1() >> ID_AA64MMFR0_EL1_FGT_SHIFT) & + ID_AA64MMFR0_EL1_FGT_MASK) == ID_AA64MMFR0_EL1_FGT_SUPPORTED; +} + +static inline unsigned long int get_armv8_6_ecv_support(void) +{ + return ((read_id_aa64mmfr0_el1() >> ID_AA64MMFR0_EL1_ECV_SHIFT) & + ID_AA64MMFR0_EL1_ECV_MASK); +} + +static inline bool is_armv8_5_rng_present(void) +{ + return ((read_id_aa64isar0_el1() >> ID_AA64ISAR0_RNDR_SHIFT) & + ID_AA64ISAR0_RNDR_MASK); +} + +/* + * Return MPAM version: + * + * 0x00: None Armv8.0 or later + * 0x01: v0.1 Armv8.4 or later + * 0x10: v1.0 Armv8.2 or later + * 0x11: v1.1 Armv8.4 or later + * + */ +static inline unsigned int get_mpam_version(void) +{ + return (unsigned int)((((read_id_aa64pfr0_el1() >> + ID_AA64PFR0_MPAM_SHIFT) & ID_AA64PFR0_MPAM_MASK) << 4) | + ((read_id_aa64pfr1_el1() >> + ID_AA64PFR1_MPAM_FRAC_SHIFT) & ID_AA64PFR1_MPAM_FRAC_MASK)); +} + #endif /* ARCH_FEATURES_H */ |