Open source GPL/LGPL release

drivers/gpu/nvgpu/hal/mm/mm_gm20b.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2019-2020, 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/bitops.h>
+
+#include "mm_gm20b.h"
+
+bool gm20b_mm_is_bar1_supported(struct gk20a *g)
+{
+	return true;
+}
+
+void gm20b_mm_get_default_va_sizes(u64 *aperture_size,
+			u64 *user_size, u64 *kernel_size)
+{
+	/*
+	 * The maximum GPU VA range supported.
+	 * Max VA Bits = 40, refer dev_mmu.ref.
+	 */
+	if (aperture_size != NULL) {
+		*aperture_size = BIT64(40);
+	}
+
+	/*
+	 * The default userspace-visible GPU VA size.
+	 */
+	if (user_size != NULL) {
+		*user_size = BIT64(37);
+	}
+
+	/*
+	 * The default kernel-reserved GPU VA size.
+	 */
+	if (kernel_size != NULL) {
+		*kernel_size = BIT64(32);
+	}
+}