intel: query whether a buffer is reusable.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

4 files changed, 24 insertions, 0 deletions

diff --git a/intel/intel_bufmgr.c b/intel/intel_bufmgr.c
index ce21a332..9144fdd4 100644
--- a/intel/intel_bufmgr.c
+++ b/intel/intel_bufmgr.c
@@ -229,6 +229,13 @@ int drm_intel_bo_disable_reuse(drm_intel_bo *bo)
 	return 0;
 }
 
+int drm_intel_bo_is_reusable(drm_intel_bo *bo)
+{
+	if (bo->bufmgr->bo_is_reusable)
+		return bo->bufmgr->bo_is_reusable(bo);
+	return 0;
+}
+
 int drm_intel_bo_busy(drm_intel_bo *bo)
 {
 	if (bo->bufmgr->bo_busy)
diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index 0984ab08..cbcddb65 100644
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -126,6 +126,7 @@ int drm_intel_bo_busy(drm_intel_bo *bo);
 int drm_intel_bo_madvise(drm_intel_bo *bo, int madv);
 
 int drm_intel_bo_disable_reuse(drm_intel_bo *bo);
+int drm_intel_bo_is_reusable(drm_intel_bo *bo);
 int drm_intel_bo_references(drm_intel_bo *bo, drm_intel_bo *target_bo);
 
 /* drm_intel_bufmgr_gem.c */
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 8fa5631d..9daa89ad 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -1904,6 +1904,14 @@ drm_intel_gem_bo_disable_reuse(drm_intel_bo *bo)
 }
 
 static int
+drm_intel_gem_bo_is_reusable(drm_intel_bo *bo)
+{
+	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
+
+	return bo_gem->reusable;
+}
+
+static int
 _drm_intel_gem_bo_references(drm_intel_bo *bo, drm_intel_bo *target_bo)
 {
 	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
@@ -2060,6 +2068,7 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
 	bufmgr_gem->bufmgr.check_aperture_space =
 	    drm_intel_gem_check_aperture_space;
 	bufmgr_gem->bufmgr.bo_disable_reuse = drm_intel_gem_bo_disable_reuse;
+	bufmgr_gem->bufmgr.bo_is_reusable = drm_intel_gem_bo_is_reusable;
 	bufmgr_gem->bufmgr.get_pipe_from_crtc_id =
 	    drm_intel_gem_get_pipe_from_crtc_id;
 	bufmgr_gem->bufmgr.bo_references = drm_intel_gem_bo_references;
diff --git a/intel/intel_bufmgr_priv.h b/intel/intel_bufmgr_priv.h
index fb84e70f..f987d97a 100644
--- a/intel/intel_bufmgr_priv.h
+++ b/intel/intel_bufmgr_priv.h
@@ -247,6 +247,13 @@ struct _drm_intel_bufmgr {
 	int (*bo_disable_reuse) (drm_intel_bo *bo);
 
 	/**
+	 * Query whether a buffer is reusable.
+	 *
+	 * \param bo Buffer to query
+	 */
+	int (*bo_is_reusable) (drm_intel_bo *bo);
+
+	/**
 	 *
 	 * Return the pipe associated with a crtc_id so that vblank
 	 * synchronization can use the correct data in the request.