From: Will Deacon Date: Thu, 6 Feb 2014 11:30:48 +0000 (+0000) Subject: arm64: barriers: allow dsb macro to take option parameter X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4a7ac12eedd190cdf071e61145defa73df1675c0;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git arm64: barriers: allow dsb macro to take option parameter The dsb instruction takes an option specifying both the target access types and shareability domain. This patch allows such an option to be passed to the dsb macro, resulting in potentially more efficient code. Currently the option is ignored until all callers are updated (unlike ARM, the option is mandated by the assembler). Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index 78e20ba8806b..409ca370cfe2 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -25,7 +25,7 @@ #define wfi() asm volatile("wfi" : : : "memory") #define isb() asm volatile("isb" : : : "memory") -#define dsb() asm volatile("dsb sy" : : : "memory") +#define dsb(opt) asm volatile("dsb sy" : : : "memory") #define mb() dsb() #define rmb() asm volatile("dsb ld" : : : "memory")