panfrost: split index cache into shared part

[mesa.git] / src / panfrost / shared / pan_minmax_cache.h

diff --git a/src/panfrost/shared/pan_minmax_cache.h b/src/panfrost/shared/pan_minmax_cache.h
new file mode 100644 (file)
index 0000000..fe26437
--- /dev/null
+++ b/src/panfrost/shared/pan_minmax_cache.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2020 Collabora, Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors (Collabora):
+ *   Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
+ */
+
+#ifndef H_PAN_MINMAX_CACHE
+#define H_PAN_MINMAX_CACHE
+
+#include "util/u_transfer.h"
+
+#define PANFROST_MINMAX_SIZE 64
+
+struct panfrost_minmax_cache {
+        uint64_t keys[PANFROST_MINMAX_SIZE];
+        uint64_t values[PANFROST_MINMAX_SIZE];
+        unsigned size;
+        unsigned index;
+};
+
+bool
+panfrost_minmax_cache_get(struct panfrost_minmax_cache *cache, unsigned start, unsigned count,
+                     unsigned *min_index, unsigned *max_index);
+
+void
+panfrost_minmax_cache_add(struct panfrost_minmax_cache *cache, unsigned start, unsigned count,
+                     unsigned min_index, unsigned max_index);
+
+void
+panfrost_minmax_cache_invalidate(struct panfrost_minmax_cache *cache, struct pipe_transfer *transfer);
+
+#endif