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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-05-17 16:38:06 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-05-27 15:47:54 -0400 |
| commit | 25828588412c1f951d72e1eda9e4320d422b7be5 (patch) | |
| tree | 09ab1e4fcae2e5f668b5ae3d2da0d9beecee6c98 /arch/arm/cpu/armv8 | |
| parent | 3d16389c909657a5fd1017e771ce5acf8aed6189 (diff) | |
| download | u-boot-imx-25828588412c1f951d72e1eda9e4320d422b7be5.zip u-boot-imx-25828588412c1f951d72e1eda9e4320d422b7be5.tar.gz u-boot-imx-25828588412c1f951d72e1eda9e4320d422b7be5.tar.bz2 | |
arm64: optimize __asm_{flush, invalidate}_dcache_all
__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>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/cpu/armv8')
| -rw-r--r-- | arch/arm/cpu/armv8/cache.S | 10 |
1 files 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) /* |