There are internal patches for a feature which require a parameter to query whether support exists . These patches cannot be made external yet. In order to keep existing tests and userspace happy and free from conflicts, reserve a number for it. Signed-off-by: Ben Widawsky <ben at bwidawsk.net> --- include/drm/i915_drm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index 05e24d3..c883300 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -313,6 +313,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_WAIT_TIMEOUT 19 #define I915_PARAM_HAS_SEMAPHORES 20 #define I915_PARAM_HAS_PRIME_VMAP_FLUSH 21 +#define I915_PARAM_RSVD_FOR_FUTURE_USE 22 typedef struct drm_i915_getparam { int param; -- 1.7.12