Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 15:14:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

riscv: use invalidate/flush_*cache_range functions in cache.c

Browse source 
The flush_cache() function in lib/cache.c ignores its arguments and
flushes the complete data and instruction caches. Use the
invalidate/flush_*cache_range() functions instead to only flush the
requested memory region.

This patch does not change the current behavior of U-Boot, since the
implementation of the invalidate/flush_*cache_range() functions flush
the complete data and instruction caches. It is in preparation for CPUs
with the necessary functionality for flushing a selectable memory range.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Lukas Auer 2019-01-04 01:37:30 +01:00 committed by Andes
parent c9056653ec
commit f74c416e62
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
arch/riscv/lib/cache.c
View file

@ -40,8 +40,8 @@ void cache_flush(void)
void flush_cache(unsigned long addr, unsigned long size)
{
invalidate_icache_all();
flush_dcache_all();
invalidate_icache_range(addr, addr + size);
flush_dcache_range(addr, addr + size);
}
__weak void icache_enable(void)