Open source GPL/LGPL release

drivers/gpu/nvgpu/common/vgpu/cbc/cbc_vgpu.c

@@ -0,0 +1,53 @@
+/*
+ * Virtualized GPU CBC
+ *
+ * Copyright (c) 2019 NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 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.
+ */
+
+#include <nvgpu/gk20a.h>
+#include <nvgpu/vgpu/vgpu.h>
+
+#include "cbc_vgpu.h"
+
+int vgpu_cbc_alloc_comptags(struct gk20a *g, struct nvgpu_cbc *cbc)
+{
+	struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
+	u32 max_comptag_lines = 0;
+	int err;
+
+	nvgpu_log_fn(g, " ");
+
+	cbc->comptags_per_cacheline = priv->constants.comptags_per_cacheline;
+	max_comptag_lines = priv->constants.comptag_lines;
+
+	if (max_comptag_lines < 2) {
+		return -ENXIO;
+	}
+
+	err = gk20a_comptag_allocator_init(g, &cbc->comp_tags, max_comptag_lines);
+	if (err) {
+		return err;
+	}
+
+	cbc->max_comptag_lines = max_comptag_lines;
+
+	return 0;
+}