| Message ID | 20240729-optimize_ring_buffer_read_riscv-v1-2-6bbc0f2434ee@rivosinc.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | tools: Add barrier implementations for riscv | expand |
diff --git a/tools/include/linux/ring_buffer.h b/tools/include/linux/ring_buffer.h index 6c02617377c2..a74c397359c7 100644 --- a/tools/include/linux/ring_buffer.h +++ b/tools/include/linux/ring_buffer.h @@ -55,7 +55,7 @@ static inline u64 ring_buffer_read_head(struct perf_event_mmap_page *base) * READ_ONCE() + smp_mb() pair. */ #if defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__) || \ - defined(__ia64__) || defined(__sparc__) && defined(__arch64__) + defined(__ia64__) || defined(__sparc__) && defined(__arch64__) || defined(__riscv) return smp_load_acquire(&base->data_head); #else u64 head = READ_ONCE(base->data_head);
Now that riscv supports optimized barriers, use them in the ring buffer. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> --- tools/include/linux/ring_buffer.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)