tsb csync synchronizes the trace operation of instructions.
The instruction is a nop when FEAT_TRF is not implemented.
Cc: Mathieu Poirier <mathieu.poir...@linaro.org>
Cc: Mike Leach <mike.le...@linaro.org>
Cc: Catalin Marinas <catalin.mari...@arm.com>
Cc: Will Deacon <will.dea...@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com>
---
New patch, split from the TRBE driver for ease of merging
---
arch/arm64/include/asm/barrier.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index c3009b0e5239..5a8367a2b868 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -23,6 +23,7 @@
#define dsb(opt) asm volatile("dsb " #opt : : : "memory")
#define psb_csync() asm volatile("hint #17" : : : "memory")
+#define tsb_csync() asm volatile("hint #18" : : : "memory")
#define csdb() asm volatile("hint #20" : : : "memory")
#define spec_bar() asm volatile(ALTERNATIVE("dsb nsh\nisb\n",
\
--
2.24.1
