| Jianliang Shen | db114b5 | 2023-02-20 14:28:05 +0800 | [diff] [blame] | 1 | |
| 2 | #------------------------------------------------------------------------------- |
| 3 | # Copyright (c) 2023, Arm Limited. All rights reserved. |
| 4 | # |
| 5 | # SPDX-License-Identifier: BSD-3-Clause |
| 6 | # |
| 7 | #------------------------------------------------------------------------------- |
| 8 | |
| 9 | ################################# FPU #################################### |
| 10 | |
| 11 | menu "FPU/MVE" |
| 12 | |
| 13 | config CONFIG_TFM_LAZY_STACKING |
| 14 | bool |
| 15 | default n |
| 16 | help |
| 17 | Enable lazy stacking |
| 18 | |
| 19 | config CONFIG_TFM_ENABLE_CP10CP11 |
| 20 | bool |
| 21 | default n |
| 22 | help |
| 23 | Make FPU and MVE operational when SPE and/or NSPE require FPU or MVE usage. |
| 24 | This alone only enables the coprocessors CP10-CP11, whereas CONFIG_TFM_FLOAT_ABI=hard |
| 25 | along with CONFIG_TFM_ENABLE_FP, CONFIG_TFM_ENABLE_MVE or CONFIG_TFM_ENABLE_MVE_FP |
| 26 | compiles the code with hardware FP or MVE instructions and ABI. |
| 27 | |
| 28 | config CONFIG_TFM_ENABLE_FP |
| 29 | #TODO: depends on toolchain type |
| 30 | bool "Enable FP usage" |
| 31 | depends on CONFIG_TFM_FP_ARCH != "" |
| 32 | default n |
| 33 | imply CONFIG_TFM_LAZY_STACKING |
| 34 | select CONFIG_TFM_ENABLE_CP10CP11 |
| 35 | |
| 36 | config CONFIG_TFM_ENABLE_MVE |
| 37 | #TODO: depends on v8.1 |
| 38 | bool "Enable integer MVE usage" |
| 39 | default n |
| 40 | imply CONFIG_TFM_LAZY_STACKING |
| 41 | select CONFIG_TFM_ENABLE_CP10CP11 |
| 42 | |
| 43 | config CONFIG_TFM_ENABLE_MVE_FP |
| 44 | bool "Enable floating-point MVE usage" |
| 45 | depends on CONFIG_TFM_FP_ARCH != "" |
| 46 | default n |
| 47 | imply CONFIG_TFM_LAZY_STACKING |
| 48 | select CONFIG_TFM_ENABLE_CP10CP11 |
| 49 | |
| 50 | config CONFIG_TFM_FLOAT_ABI |
| 51 | #TODO: shall be int to align with compile options |
| 52 | string |
| 53 | default "hard" if CONFIG_TFM_ENABLE_FP || CONFIG_TFM_ENABLE_MVE || CONFIG_TFM_ENABLE_MVE_FP |
| 54 | default "soft" |
| 55 | help |
| 56 | Set float abi hard to enable hardware floating-point instructions and |
| 57 | hardware floating-point linkage. |
| 58 | |
| 59 | Set float abi soft, meaning software library functions for |
| 60 | floating-point operations and software floating-point linkage. |
| 61 | |
| 62 | endmenu |