diff options
| author | Palmer Dabbelt <palmer@rivosinc.com> | 2024-09-20 01:46:50 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-09-20 05:58:08 -0700 |
| commit | 47b9533ccd1a5e9c2e7944686ccf491b27a892f3 (patch) | |
| tree | d8e328d3a9a21bc4fdacf89e0d8075f3e87a4150 /tools/include | |
| parent | ad380f6a0a5e82e794b45bb2eaec24ed51a56846 (diff) | |
| parent | aa5736dc7aa4d6f0e5e4e4147d9aef42bb82deab (diff) | |
Merge patch series "tools: Add barrier implementations for riscv"
Charlie Jenkins <charlie@rivosinc.com> says:
Add support for riscv specific barrier implementations to the tools
tree, so that fence instructions can be emitted for synchronization.
* b4-shazam-merge:
tools: Optimize ring buffer for riscv
tools: Add riscv barrier implementation
Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-0-ca7e193ae198@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/asm/barrier.h | 2 | ||||
| -rw-r--r-- | tools/include/linux/ring_buffer.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h index 8d378c57cb01..0c21678ac5e6 100644 --- a/tools/include/asm/barrier.h +++ b/tools/include/asm/barrier.h @@ -8,6 +8,8 @@ #include "../../arch/arm64/include/asm/barrier.h" #elif defined(__powerpc__) #include "../../arch/powerpc/include/asm/barrier.h" +#elif defined(__riscv) +#include "../../arch/riscv/include/asm/barrier.h" #elif defined(__s390__) #include "../../arch/s390/include/asm/barrier.h" #elif defined(__sh__) 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); |