diff options
| author | Matteo Croce <mcroce@microsoft.com> | 2022-03-30 15:07:14 +0300 |
|---|---|---|
| committer | Guo Ren <guoren@linux.alibaba.com> | 2022-04-18 16:23:55 +0300 |
| commit | e4df2d5e852a7d24df3672ae9951eb79e179be08 (patch) | |
| tree | 304debe8a13e6d07a56b7f97ac9eb92d8ddd95d7 /arch/csky/lib/Makefile | |
| parent | cfb24463a53edeb388f3563e166ad7f9591dad3d (diff) | |
| download | linux-e4df2d5e852a7d24df3672ae9951eb79e179be08.tar.xz | |
csky: Add C based string functions
Try to access RAM with the largest bit width possible, but without
doing unaligned accesses.
A further improvement could be to use multiple read and writes as the
assembly version was trying to do.
Tested on a BeagleV Starlight with a SiFive U74 core, where the
improvement is noticeable.
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Co-developed-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Diffstat (limited to 'arch/csky/lib/Makefile')
| -rw-r--r-- | arch/csky/lib/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/csky/lib/Makefile b/arch/csky/lib/Makefile index 7fbdbb2c4d12..d0ce6e2d7ab2 100644 --- a/arch/csky/lib/Makefile +++ b/arch/csky/lib/Makefile @@ -1,3 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only lib-y := usercopy.o delay.o obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o +ifneq ($(CONFIG_HAVE_EFFICIENT_UNALIGNED_STRING_OPS), y) +lib-y += string.o +endif |