1 files changed, 54 insertions, 0 deletions

diff --git a/include/nvgpu/as.h b/include/nvgpu/as.h
new file mode 100644
index 0000000..f2249f9
--- /dev/null
+++ b/include/nvgpu/as.h
@@ -0,0 +1,54 @@
+/*
+ * GK20A Address Spaces
+ *
+ * Copyright (c) 2011-2018, 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.
+ */
+#ifndef NVGPU_AS_H
+#define NVGPU_AS_H
+
+#include <nvgpu/types.h>
+
+struct vm_gk20a;
+struct gk20a;
+
+struct gk20a_as {
+        int last_share_id; /* dummy allocator for now */
+};
+
+struct gk20a_as_share {
+        struct gk20a_as *as;
+        struct vm_gk20a *vm;
+        int id;
+};
+
+/*
+ * AS allocation flags.
+ */
+#define NVGPU_AS_ALLOC_USERSPACE_MANAGED        (1 << 0)
+
+int gk20a_as_release_share(struct gk20a_as_share *as_share);
+
+/* if big_page_size == 0, the default big page size is used */
+int gk20a_as_alloc_share(struct gk20a *g, u32 big_page_size,
+                         u32 flags, struct gk20a_as_share **out);
+
+struct gk20a *gk20a_from_as(struct gk20a_as *as);
+#endif /* NVGPU_AS_H */