+static void
+add_bucket(drm_intel_bufmgr_gem *bufmgr_gem, int size)
+{
+ unsigned int i = bufmgr_gem->num_buckets;
+
+ assert(i < ARRAY_SIZE(bufmgr_gem->cache_bucket));
+
+ DRMINITLISTHEAD(&bufmgr_gem->cache_bucket[i].head);
+ bufmgr_gem->cache_bucket[i].size = size;
+ bufmgr_gem->num_buckets++;
+}
+
+static void
+init_cache_buckets(drm_intel_bufmgr_gem *bufmgr_gem)
+{
+ unsigned long size, cache_max_size = 64 * 1024 * 1024;
+
+ /* OK, so power of two buckets was too wasteful of memory.
+ * Give 3 other sizes between each power of two, to hopefully
+ * cover things accurately enough. (The alternative is
+ * probably to just go for exact matching of sizes, and assume
+ * that for things like composited window resize the tiled
+ * width/height alignment and rounding of sizes to pages will
+ * get us useful cache hit rates anyway)
+ */
+ add_bucket(bufmgr_gem, 4096);
+ add_bucket(bufmgr_gem, 4096 * 2);
+ add_bucket(bufmgr_gem, 4096 * 3);
+
+ /* Initialize the linked lists for BO reuse cache. */
+ for (size = 4 * 4096; size <= cache_max_size; size *= 2) {
+ add_bucket(bufmgr_gem, size);
+
+ add_bucket(bufmgr_gem, size + size * 1 / 4);
+ add_bucket(bufmgr_gem, size + size * 2 / 4);
+ add_bucket(bufmgr_gem, size + size * 3 / 4);
+ }
+}
+