| From ba079b8d6a50796db41bb0ddf4c22bfe022ef898 Mon Sep 17 00:00:00 2001 |
| From: "Richard W.M. Jones" <rjones@redhat.com> |
| Date: Sun, 20 Nov 2016 15:04:52 +0000 |
| Subject: [PATCH 1/5] Add support for RISC-V. |
| |
| The architecture is sufficiently similar to aarch64 that simply |
| extending the existing aarch64 macro works. |
| --- |
| src/include/storage/s_lock.h | 5 +++-- |
| 1 file changed, 3 insertions(+), 2 deletions(-) |
| |
| diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h |
| index c9fa84c..9b491e8 100644 |
| --- a/src/include/storage/s_lock.h |
| +++ b/src/include/storage/s_lock.h |
| @@ -252,11 +252,12 @@ spin_delay(void) |
| |
| /* |
| * On ARM and ARM64, we use __sync_lock_test_and_set(int *, int) if available. |
| + * On RISC-V, the same. |
| * |
| * We use the int-width variant of the builtin because it works on more chips |
| * than other widths. |
| */ |
| -#if defined(__arm__) || defined(__arm) || defined(__aarch64__) |
| +#if defined(__arm__) || defined(__arm) || defined(__aarch64__) || defined(__riscv) |
| #ifdef HAVE_GCC__SYNC_INT32_TAS |
| #define HAS_TEST_AND_SET |
| |
| @@ -290,7 +291,7 @@ spin_delay(void) |
| |
| #endif /* __aarch64__ */ |
| #endif /* HAVE_GCC__SYNC_INT32_TAS */ |
| -#endif /* __arm__ || __arm || __aarch64__ */ |
| +#endif /* __arm__ || __arm || __aarch64__ || __riscv */ |
| |
| |
| /* S/390 and S/390x Linux (32- and 64-bit zSeries) */ |
| -- |
| 2.25.1 |
| |