intel: tell libdrm whether we want a cpu-ready or gpu-ready BO for regions.

This lets us avoid allocing new buffers for renderbuffers, finalized miptrees,
and PBO-uploaded textures when there's an unreferenced but still active one
cached, while also avoiding CPU waits for batchbuffers and CPU-uploaded
textures.  The size of BOs allocated for a desktop running current GL
cairogears on i915 is cut in half with this.

Note that this means we require libdrm 2.4.5.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
index bf1c3f03f0..6e1e034e53 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
@@ -103,7 +103,8 @@ intel_miptree_create(struct intel_context *intel,
 		     GLuint last_level,
 		     GLuint width0,
 		     GLuint height0,
-		     GLuint depth0, GLuint cpp, GLuint compress_byte)
+		     GLuint depth0, GLuint cpp, GLuint compress_byte,
+		     GLboolean expect_accelerated_upload)
 {
    struct intel_mipmap_tree *mt;
 
@@ -120,7 +121,8 @@ intel_miptree_create(struct intel_context *intel,
 				   mt->cpp,
 				   mt->pitch,
 				   mt->total_height,
-				   mt->pitch);
+				   mt->pitch,
+				   expect_accelerated_upload);
 
    if (!mt->region) {
        free(mt);