#-------------------------------------------------------------------------------
# Copyright (c) 2023, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
#-------------------------------------------------------------------------------

################################# FPU ####################################

menu "FPU/MVE"

    config CONFIG_TFM_LAZY_STACKING
        bool
        default n
        help
          Enable lazy stacking

    config CONFIG_TFM_ENABLE_CP10CP11
        bool
        default n
        help
          Make FPU and MVE operational when SPE and/or NSPE require FPU or MVE usage.
          This alone only enables the coprocessors CP10-CP11, whereas CONFIG_TFM_FLOAT_ABI=hard
          along with CONFIG_TFM_ENABLE_FP, CONFIG_TFM_ENABLE_MVE or CONFIG_TFM_ENABLE_MVE_FP
          compiles the code with hardware FP or MVE instructions and ABI.

    config CONFIG_TFM_ENABLE_FP
        #TODO: depends on toolchain type
        bool "Enable FP usage"
        depends on CONFIG_TFM_FP_ARCH != ""
        default n
        imply CONFIG_TFM_LAZY_STACKING
        select CONFIG_TFM_ENABLE_CP10CP11

    config CONFIG_TFM_ENABLE_MVE
        #TODO: depends on v8.1
        bool "Enable integer MVE usage"
        default n
        imply CONFIG_TFM_LAZY_STACKING
        select CONFIG_TFM_ENABLE_CP10CP11

    config CONFIG_TFM_ENABLE_MVE_FP
        bool "Enable floating-point MVE usage"
        depends on CONFIG_TFM_FP_ARCH != ""
        default n
        imply CONFIG_TFM_LAZY_STACKING
        select CONFIG_TFM_ENABLE_CP10CP11

    config CONFIG_TFM_FLOAT_ABI
        #TODO: shall be int to align with compile options
        string
        default "hard"  if CONFIG_TFM_ENABLE_FP || CONFIG_TFM_ENABLE_MVE || CONFIG_TFM_ENABLE_MVE_FP
        default "soft"
        help
          Set float abi hard to enable hardware floating-point instructions and
          hardware floating-point linkage.

          Set float abi soft, meaning software library functions for
          floating-point operations and software floating-point linkage.

endmenu