#
# Copyright (c) 2022-2026, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#

# This file lists all of the architectural features, and initializes
# and enables them based on the configured architecture version.

# This file follows the following format:
#   - Enable mandatory feature if not updated, as applicable to an Arch Version.
#   - By default disable any mandatory features if they have not been defined yet.
#   - Disable or enable any optional feature this would be enabled/disabled if needed by platform.

#
################################################################################
# Enable Mandatory features if not updated yet, based on Arch versions.
################################################################################
#

# Enable the features which are mandatory from ARCH version 8.1 and upwards.
ifeq "8.1" "$(word 1, $(sort 8.1 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-1-a-feats         := ENABLE_FEAT_PAN ENABLE_FEAT_VHE

FEAT_LIST               := ${armv8-1-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.2 and upwards.
ifeq "8.2" "$(word 1, $(sort 8.2 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-2-a-feats         := ENABLE_FEAT_RAS
# 8.1 Compliant
armv8-2-a-feats         += ${armv8-1-a-feats}

FEAT_LIST               := ${armv8-2-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.3 and upwards.
ifeq "8.3" "$(word 1, $(sort 8.3 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.2 Compliant
armv8-3-a-feats         += ${armv8-2-a-feats}

FEAT_LIST               := ${armv8-3-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.4 and upwards.
ifeq "8.4" "$(word 1, $(sort 8.4 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-4-a-feats         := ENABLE_FEAT_SEL2 ENABLE_TRF_FOR_NS ENABLE_FEAT_DIT
# 8.3 Compliant
armv8-4-a-feats         += ${armv8-3-a-feats}

FEAT_LIST               := ${armv8-4-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.5 and upwards.
ifeq "8.5" "$(word 1, $(sort 8.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-5-a-feats         := ENABLE_FEAT_SB
# 8.4 Compliant
armv8-5-a-feats         += ${armv8-4-a-feats}

FEAT_LIST               := ${armv8-5-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.6 and upwards.
ifeq "8.6" "$(word 1, $(sort 8.6 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-6-a-feats         := ENABLE_FEAT_ECV ENABLE_FEAT_FGT
# 8.5 Compliant
armv8-6-a-feats         += ${armv8-5-a-feats}
FEAT_LIST               := ${armv8-6-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.7 and upwards.
ifeq "8.7" "$(word 1, $(sort 8.7 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-7-a-feats         := ENABLE_FEAT_HCX
# 8.6 Compliant
armv8-7-a-feats         += ${armv8-6-a-feats}
FEAT_LIST               := ${armv8-7-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.8 and upwards.
ifeq "8.8" "$(word 1, $(sort 8.8 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-8-a-feats		:= ENABLE_FEAT_MOPS
# 8.7 Compliant
armv8-8-a-feats         += ${armv8-7-a-feats}
FEAT_LIST               := ${armv8-8-a-feats}
endif

# Enable the features which are mandatory from ARCH version 8.9 and upwards.
ifeq "8.9" "$(word 1, $(sort 8.9 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
armv8-9-a-feats         := ENABLE_FEAT_TCR2 ENABLE_FEAT_DEBUGV8P9	\
			   ENABLE_FEAT_SCTLR2 ENABLE_FEAT_CLRBHB
# 8.8 Compliant
armv8-9-a-feats         += ${armv8-8-a-feats}
FEAT_LIST               := ${armv8-9-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.0 and upwards.
ifeq "9.0" "$(word 1, $(sort 9.0 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.5 Compliant
armv9-0-a-feats         += ${armv8-5-a-feats}
FEAT_LIST               := ${armv9-0-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.1 and upwards.
ifeq "9.1" "$(word 1, $(sort 9.1 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.6 and 9.0 Compliant
armv9-1-a-feats         += ${armv8-6-a-feats} ${armv9-0-a-feats}
FEAT_LIST               := ${armv9-1-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.2 and upwards.
ifeq "9.2" "$(word 1, $(sort 9.2 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.7 and 9.1 Compliant
armv9-2-a-feats         += ${armv8-7-a-feats} ${armv9-1-a-feats}
FEAT_LIST               := ${armv9-2-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.3 and upwards.
ifeq "9.3" "$(word 1, $(sort 9.3 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.8 and 9.2 Compliant
armv9-3-a-feats         += ${armv8-8-a-feats} ${armv9-2-a-feats}
FEAT_LIST               := ${armv9-3-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.4 and upwards.
ifeq "9.4" "$(word 1, $(sort 9.4 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 8.9 and 9.3 Compliant
armv9-4-a-feats         += ${armv8-9-a-feats} ${armv9-3-a-feats}
FEAT_LIST               := ${armv9-4-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.5 and upwards.
ifeq "9.5" "$(word 1, $(sort 9.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 9.4 Compliant
armv9-5-a-feats         := ENABLE_FEAT_STEP2
armv9-5-a-feats         += ${armv9-4-a-feats}
FEAT_LIST               := ${armv9-5-a-feats}
endif

# Enable the features which are mandatory from ARCH version 9.6 and upwards.
ifeq "9.6" "$(word 1, $(sort 9.6 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
# 9.5 Compliant
armv9-6-a-feats         := ENABLE_FEAT_UINJ
armv9-6-a-feats         += ${armv9-5-a-feats}
FEAT_LIST               := ${armv9-6-a-feats}
endif

# Set all FEAT_* in FEAT_LIST to '1' if they are not yet defined or set
# from build commandline options or platform makefile.
$(eval $(call set_ones, ${sort ${FEAT_LIST}}))