diff options
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 7 | ||||
| -rw-r--r-- | arch/arm64/include/asm/barrier.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 544878a9f29e..1f44b4255a28 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -116,6 +116,13 @@ .endm /* + * Value prediction barrier + */ + .macro csdb + hint #20 + .endm + +/* * NOP sequence */ .macro nops, num diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index 77651c49ef44..c0a846d2c602 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -32,6 +32,7 @@ #define dsb(opt) asm volatile("dsb " #opt : : : "memory") #define psb_csync() asm volatile("hint #17" : : : "memory") +#define csdb() asm volatile("hint #20" : : : "memory") #define mb() dsb(sy) #define rmb() dsb(ld) |