diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-08-18 18:41:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-08-18 18:41:12 +0200 |
| commit | f594d0b9b34aeb8e3ffa524eaa8a4085afb56d22 (patch) | |
| tree | 7ef81ad042bcfe78dc0f41e05cebfdbc268871c4 /tools/testing/selftests/powerpc/benchmarks/context_switch.c | |
| parent | b3830e8d478cd9fe33e820425ce431c8ef280967 (diff) | |
| parent | 7b0501b1e7cddd32b265178e32d332bdfbb532d4 (diff) | |
Merge branch 'x86/urgent' into x86/asm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/testing/selftests/powerpc/benchmarks/context_switch.c')
| -rw-r--r-- | tools/testing/selftests/powerpc/benchmarks/context_switch.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/tools/testing/selftests/powerpc/benchmarks/context_switch.c b/tools/testing/selftests/powerpc/benchmarks/context_switch.c index 7b785941adec..a36883ad48a4 100644 --- a/tools/testing/selftests/powerpc/benchmarks/context_switch.c +++ b/tools/testing/selftests/powerpc/benchmarks/context_switch.c @@ -25,7 +25,9 @@ #include <sys/types.h> #include <sys/shm.h> #include <linux/futex.h> - +#ifdef __powerpc__ +#include <altivec.h> +#endif #include "../utils.h" static unsigned int timeout = 30; @@ -37,12 +39,15 @@ static int touch_fp = 1; double fp; static int touch_vector = 1; -typedef int v4si __attribute__ ((vector_size (16))); -v4si a, b, c; +vector int a, b, c; #ifdef __powerpc__ static int touch_altivec = 1; +/* + * Note: LTO (Link Time Optimisation) doesn't play well with this function + * attribute. Be very careful enabling LTO for this test. + */ static void __attribute__((__target__("no-vsx"))) altivec_touch_fn(void) { c = a + b; @@ -369,11 +374,11 @@ static void usage(void) fprintf(stderr, "\t\t--process\tUse processes (default threads)\n"); fprintf(stderr, "\t\t--timeout=X\tDuration in seconds to run (default 30)\n"); fprintf(stderr, "\t\t--vdso\t\ttouch VDSO\n"); - fprintf(stderr, "\t\t--fp\t\ttouch FP\n"); + fprintf(stderr, "\t\t--no-fp\t\tDon't touch FP\n"); #ifdef __powerpc__ - fprintf(stderr, "\t\t--altivec\ttouch altivec\n"); + fprintf(stderr, "\t\t--no-altivec\tDon't touch altivec\n"); #endif - fprintf(stderr, "\t\t--vector\ttouch vector\n"); + fprintf(stderr, "\t\t--no-vector\tDon't touch vector\n"); } int main(int argc, char *argv[]) |