github
/
arm-trusted-firmware
mirror of https://github.com/ARM-software/arm-trusted-firmware.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
14134 Commits
5 Branches
114 Tags
55 MiB
Tree: 1b8ed0993f
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '1b8ed0993f'
${ noResults }
arm-trusted-firmware/lib/libc/libc_asm.mk

16 lines
293 B
Raw Normal View History

plat/arm: Introduce and use libc_asm.mk makefile Trace analysis of FVP_Base_AEMv8A 0.0/6063 model running in Aarch32 mode with the build options listed below: TRUSTED_BOARD_BOOT=1 GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_ecdsa KEY_ALG=ecdsa ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem shows that when auth_signature() gets called 71.99% of CPU execution time is spent in memset() function written in C using single byte write operations, see lib\libc\memset.c. This patch introduces new libc_asm.mk makefile which replaces C memset() implementation with assembler version giving the following results: - for Aarch32 in auth_signature() call memset() CPU time reduced to 20.56%. The number of CPU instructions (Inst) executed during TF-A boot stage before start of BL33 in RELEASE builds for different versions is presented in the tables below, where: - C TF-A: existing TF-A C code; - C musl: "lightweight code" C "implementation of the standard library for Linux-based systems" https://git.musl-libc.org/cgit/musl/tree/src/string/memset.c - Asm Opt: assemler version from "Arm Optimized Routines" project https://github.com/ARM-software/optimized-routines/blob/ master/string/arm/memset.S - Asm Linux: assembler version from Linux kernel https://github.com/torvalds/linux/blob/master/arch/arm/lib/memset.S - Asm TF-A: assembler version from this patch Aarch32: +-----------+------+------+--------------+----------+ | Variant | Set | Size | Inst | Ratio | +-----------+------+------+--------------+----------+ | C TF-A | T32 | 16 | 2122110003 | 1.000000 | | C musl | T32 | 156 | 1643917668 | 0.774662 | | Asm Opt | T32 | 84 | 1604810003 | 0.756233 | | Asm Linux | A32 | 168 | 1566255018 | 0.738065 | | Asm TF-A | A32 | 160 | 1525865101 | 0.719032 | +-----------+------+------+--------------+----------+ AArch64: +-----------+------+------------+----------+ | Variant | Size | Inst | Ratio | +-----------+------+------------+----------+ | C TF-A | 28 | 2732497518 | 1.000000 | | C musl | 212 | 1802999999 | 0.659836 | | Asm TF-A | 140 | 1680260003 | 0.614917 | +-----------+------+------------+----------+ This patch modifies 'plat\arm\common\arm_common.mk' by overriding libc.mk makefile with libc_asm.mk and does not effect other platforms. Change-Id: Ie89dd0b74ba1079420733a0d76b7366ad0157c2e Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
4 years ago
#
fix(libc): add memcpy_s source file to libc_asm mk Change [1] introduced the memcpy_s function and added the source file to lib/libc/libc.mk but omitted to update lib/libc/libc_asm.mk Arm platforms (and platforms from one partner) use OVERRIDE_LIBC=1 option as a platform default hence consume libc_asm.mk To prevent this confusion to happen again, create libc_common.mk for the common set of C files to build. libc_common.mk is included by both libc.mk and libc_asm.mk The latter adds asm implementations of libc functions. [1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/21450 Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: Ibd36ea5c561e35f268048ccbefc8f47485f64bdf
10 months ago
# Copyright (c) 2020-2024, Arm Limited. All rights reserved.
plat/arm: Introduce and use libc_asm.mk makefile Trace analysis of FVP_Base_AEMv8A 0.0/6063 model running in Aarch32 mode with the build options listed below: TRUSTED_BOARD_BOOT=1 GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_ecdsa KEY_ALG=ecdsa ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem shows that when auth_signature() gets called 71.99% of CPU execution time is spent in memset() function written in C using single byte write operations, see lib\libc\memset.c. This patch introduces new libc_asm.mk makefile which replaces C memset() implementation with assembler version giving the following results: - for Aarch32 in auth_signature() call memset() CPU time reduced to 20.56%. The number of CPU instructions (Inst) executed during TF-A boot stage before start of BL33 in RELEASE builds for different versions is presented in the tables below, where: - C TF-A: existing TF-A C code; - C musl: "lightweight code" C "implementation of the standard library for Linux-based systems" https://git.musl-libc.org/cgit/musl/tree/src/string/memset.c - Asm Opt: assemler version from "Arm Optimized Routines" project https://github.com/ARM-software/optimized-routines/blob/ master/string/arm/memset.S - Asm Linux: assembler version from Linux kernel https://github.com/torvalds/linux/blob/master/arch/arm/lib/memset.S - Asm TF-A: assembler version from this patch Aarch32: +-----------+------+------+--------------+----------+ | Variant | Set | Size | Inst | Ratio | +-----------+------+------+--------------+----------+ | C TF-A | T32 | 16 | 2122110003 | 1.000000 | | C musl | T32 | 156 | 1643917668 | 0.774662 | | Asm Opt | T32 | 84 | 1604810003 | 0.756233 | | Asm Linux | A32 | 168 | 1566255018 | 0.738065 | | Asm TF-A | A32 | 160 | 1525865101 | 0.719032 | +-----------+------+------+--------------+----------+ AArch64: +-----------+------+------------+----------+ | Variant | Size | Inst | Ratio | +-----------+------+------------+----------+ | C TF-A | 28 | 2732497518 | 1.000000 | | C musl | 212 | 1802999999 | 0.659836 | | Asm TF-A | 140 | 1680260003 | 0.614917 | +-----------+------+------------+----------+ This patch modifies 'plat\arm\common\arm_common.mk' by overriding libc.mk makefile with libc_asm.mk and does not effect other platforms. Change-Id: Ie89dd0b74ba1079420733a0d76b7366ad0157c2e Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
4 years ago
#
# SPDX-License-Identifier: BSD-3-Clause
#
fix(libc): add memcpy_s source file to libc_asm mk Change [1] introduced the memcpy_s function and added the source file to lib/libc/libc.mk but omitted to update lib/libc/libc_asm.mk Arm platforms (and platforms from one partner) use OVERRIDE_LIBC=1 option as a platform default hence consume libc_asm.mk To prevent this confusion to happen again, create libc_common.mk for the common set of C files to build. libc_common.mk is included by both libc.mk and libc_asm.mk The latter adds asm implementations of libc functions. [1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/21450 Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: Ibd36ea5c561e35f268048ccbefc8f47485f64bdf
10 months ago
include lib/libc/libc_common.mk
plat/arm: Introduce and use libc_asm.mk makefile Trace analysis of FVP_Base_AEMv8A 0.0/6063 model running in Aarch32 mode with the build options listed below: TRUSTED_BOARD_BOOT=1 GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_ecdsa KEY_ALG=ecdsa ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem shows that when auth_signature() gets called 71.99% of CPU execution time is spent in memset() function written in C using single byte write operations, see lib\libc\memset.c. This patch introduces new libc_asm.mk makefile which replaces C memset() implementation with assembler version giving the following results: - for Aarch32 in auth_signature() call memset() CPU time reduced to 20.56%. The number of CPU instructions (Inst) executed during TF-A boot stage before start of BL33 in RELEASE builds for different versions is presented in the tables below, where: - C TF-A: existing TF-A C code; - C musl: "lightweight code" C "implementation of the standard library for Linux-based systems" https://git.musl-libc.org/cgit/musl/tree/src/string/memset.c - Asm Opt: assemler version from "Arm Optimized Routines" project https://github.com/ARM-software/optimized-routines/blob/ master/string/arm/memset.S - Asm Linux: assembler version from Linux kernel https://github.com/torvalds/linux/blob/master/arch/arm/lib/memset.S - Asm TF-A: assembler version from this patch Aarch32: +-----------+------+------+--------------+----------+ | Variant | Set | Size | Inst | Ratio | +-----------+------+------+--------------+----------+ | C TF-A | T32 | 16 | 2122110003 | 1.000000 | | C musl | T32 | 156 | 1643917668 | 0.774662 | | Asm Opt | T32 | 84 | 1604810003 | 0.756233 | | Asm Linux | A32 | 168 | 1566255018 | 0.738065 | | Asm TF-A | A32 | 160 | 1525865101 | 0.719032 | +-----------+------+------+--------------+----------+ AArch64: +-----------+------+------------+----------+ | Variant | Size | Inst | Ratio | +-----------+------+------------+----------+ | C TF-A | 28 | 2732497518 | 1.000000 | | C musl | 212 | 1802999999 | 0.659836 | | Asm TF-A | 140 | 1680260003 | 0.614917 | +-----------+------+------------+----------+ This patch modifies 'plat\arm\common\arm_common.mk' by overriding libc.mk makefile with libc_asm.mk and does not effect other platforms. Change-Id: Ie89dd0b74ba1079420733a0d76b7366ad0157c2e Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
4 years ago
ifeq (${ARCH},aarch64)
LIBC_SRCS += $(addprefix lib/libc/aarch64/, \
fix(libc): add memcpy_s source file to libc_asm mk Change [1] introduced the memcpy_s function and added the source file to lib/libc/libc.mk but omitted to update lib/libc/libc_asm.mk Arm platforms (and platforms from one partner) use OVERRIDE_LIBC=1 option as a platform default hence consume libc_asm.mk To prevent this confusion to happen again, create libc_common.mk for the common set of C files to build. libc_common.mk is included by both libc.mk and libc_asm.mk The latter adds asm implementations of libc functions. [1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/21450 Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: Ibd36ea5c561e35f268048ccbefc8f47485f64bdf
10 months ago
memset.S)
plat/arm: Introduce and use libc_asm.mk makefile Trace analysis of FVP_Base_AEMv8A 0.0/6063 model running in Aarch32 mode with the build options listed below: TRUSTED_BOARD_BOOT=1 GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_ecdsa KEY_ALG=ecdsa ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem shows that when auth_signature() gets called 71.99% of CPU execution time is spent in memset() function written in C using single byte write operations, see lib\libc\memset.c. This patch introduces new libc_asm.mk makefile which replaces C memset() implementation with assembler version giving the following results: - for Aarch32 in auth_signature() call memset() CPU time reduced to 20.56%. The number of CPU instructions (Inst) executed during TF-A boot stage before start of BL33 in RELEASE builds for different versions is presented in the tables below, where: - C TF-A: existing TF-A C code; - C musl: "lightweight code" C "implementation of the standard library for Linux-based systems" https://git.musl-libc.org/cgit/musl/tree/src/string/memset.c - Asm Opt: assemler version from "Arm Optimized Routines" project https://github.com/ARM-software/optimized-routines/blob/ master/string/arm/memset.S - Asm Linux: assembler version from Linux kernel https://github.com/torvalds/linux/blob/master/arch/arm/lib/memset.S - Asm TF-A: assembler version from this patch Aarch32: +-----------+------+------+--------------+----------+ | Variant | Set | Size | Inst | Ratio | +-----------+------+------+--------------+----------+ | C TF-A | T32 | 16 | 2122110003 | 1.000000 | | C musl | T32 | 156 | 1643917668 | 0.774662 | | Asm Opt | T32 | 84 | 1604810003 | 0.756233 | | Asm Linux | A32 | 168 | 1566255018 | 0.738065 | | Asm TF-A | A32 | 160 | 1525865101 | 0.719032 | +-----------+------+------+--------------+----------+ AArch64: +-----------+------+------------+----------+ | Variant | Size | Inst | Ratio | +-----------+------+------------+----------+ | C TF-A | 28 | 2732497518 | 1.000000 | | C musl | 212 | 1802999999 | 0.659836 | | Asm TF-A | 140 | 1680260003 | 0.614917 | +-----------+------+------------+----------+ This patch modifies 'plat\arm\common\arm_common.mk' by overriding libc.mk makefile with libc_asm.mk and does not effect other platforms. Change-Id: Ie89dd0b74ba1079420733a0d76b7366ad0157c2e Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
4 years ago
else
LIBC_SRCS += $(addprefix lib/libc/aarch32/, \
memset.S)
endif