Tell the kernel that we understand atomic and want to have access to
atomic-only properties. If the kernel doesn't support atomic for i915
yet (and i915.nuclear_pageflip=1 isn't passed on the kernel command
line) this will silently fail, but won't cause any problems.
We wrap this in an #ifdef to allow compilation on pre-atomic libdrm
versions as well.
Signed-off-by: Matt Roper <matthew.d.ro...@intel.com>
---
lib/igt_kms.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 51d735d..53bfc20 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -984,6 +984,9 @@ void igt_display_init(igt_display_t *display, int drm_fd)
display->n_pipes = resources->count_crtcs;
drmSetClientCap(drm_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
+#ifdef DRM_CLIENT_CAP_ATOMIC
+ drmSetClientCap(drm_fd, DRM_CLIENT_CAP_ATOMIC, 1);
+#endif
plane_resources = drmModeGetPlaneResources(display->drm_fd);
igt_assert(plane_resources);
--
2.1.4
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