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 <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
parent
530b099dfe
commit
4a7ac12eed
|
@ -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")
|
||||
|
|
Loading…
Reference in New Issue