So that we can add an alternative implementation for the other arches.
This is basically what the kernel does.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---
tests/kms_cursor_legacy.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tests/kms_cursor_legacy.c b/tests/kms_cursor_legacy.c
index 5cb26d1c25e5..8c2d726f9d15 100644
--- a/tests/kms_cursor_legacy.c
+++ b/tests/kms_cursor_legacy.c
@@ -28,6 +28,12 @@
#include "igt.h"
#include "igt_stats.h"
+#if defined(__x86_64__) || defined(__i386__)
+#define cpu_relax() __builtin_ia32_pause()
+#else
+#define cpu_relax() asm volatile("": : :"memory")
+#endif
+
IGT_TEST_DESCRIPTION("Stress legacy cursor ioctl");
struct data {
@@ -111,7 +117,7 @@ static void stress(struct data *data,
sched_setaffinity(getpid(), sizeof(cpu_set_t), &allowed);
igt_until_timeout(timeout) {
count++;
- __builtin_ia32_pause();
+ cpu_relax();
}
igt_debug("[hog:%d] count=%llu\n", child, count);
}
--
2.5.5
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