17 May
2016
17 May
'16
5:32 p.m.
On 05/17/2016 12:37 AM, Masahiro Yamada wrote:
__asm_dcache_all can directly return to the caller of __asm_{flush,invalidate}_dcache_all.
We do not have to waste x16 register here.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com
arch/arm/cpu/armv8/cache.S | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S index a9f4fec..1c71a2f 100644 --- a/arch/arm/cpu/armv8/cache.S +++ b/arch/arm/cpu/armv8/cache.S @@ -104,19 +104,13 @@ finished: ENDPROC(__asm_dcache_all)
ENTRY(__asm_flush_dcache_all)
- mov x16, lr mov x0, #0
- bl __asm_dcache_all
- mov lr, x16
- ret
- b __asm_dcache_all
ENDPROC(__asm_flush_dcache_all)
ENTRY(__asm_invalidate_dcache_all)
- mov x16, lr mov x0, #0x1
- bl __asm_dcache_all
- mov lr, x16
- ret
- b __asm_dcache_all
ENDPROC(__asm_invalidate_dcache_all)
/*
It is a smart solution. Reviewed-by: York Sun york.sun@nxp.com