1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/video/tegra/host/nvmap.c b/drivers/video/tegra/host/nvmap.c
new file mode 100644
index 000000000000..fd82f40c59ff
--- /dev/null
+++ b/drivers/video/tegra/host/nvmap.c
@@ -0,0 +1,100 @@
+/*
+ * drivers/video/tegra/host/nvmap.c
+ *
+ * Tegra Graphics Host Nvmap support
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "chip_support.h"
+#include <linux/nvmap.h>
+
+struct mem_mgr *nvhost_nvmap_alloc_mgr(void)
+{
+	return (struct mem_mgr *)nvmap_create_client(nvmap_dev, "nvhost");
+}
+
+void nvhost_nvmap_put_mgr(struct mem_mgr *mgr)
+{
+	nvmap_client_put((struct nvmap_client *)mgr);
+}
+
+struct mem_mgr *nvhost_nvmap_get_mgr(struct mem_mgr *mgr)
+{
+	return (struct mem_mgr *)nvmap_client_get((struct nvmap_client *)mgr);
+}
+
+struct mem_mgr *nvhost_nvmap_get_mgr_file(int fd)
+{
+	return (struct mem_mgr *)nvmap_client_get_file(fd);
+}
+
+struct mem_handle *nvhost_nvmap_alloc(struct mem_mgr *mgr,
+		size_t size, size_t align, int flags)
+{
+	return (struct mem_handle *)nvmap_alloc((struct nvmap_client *)mgr,
+			size, align, flags, 0);
+}
+
+void nvhost_nvmap_put(struct mem_mgr *mgr, struct mem_handle *handle)
+{
+	return nvmap_free((struct nvmap_client *)mgr,
+			(struct nvmap_handle_ref *)handle);
+}
+
+phys_addr_t nvhost_nvmap_pin(struct mem_mgr *mgr, struct mem_handle *handle)
+{
+	return nvmap_pin((struct nvmap_client *)mgr,
+			(struct nvmap_handle_ref *)handle);
+}
+
+void nvhost_nvmap_unpin(struct mem_mgr *mgr, struct mem_handle *handle)
+{
+	return nvmap_unpin((struct nvmap_client *)mgr,
+			(struct nvmap_handle_ref *)handle);
+}
+
+void *nvhost_nvmap_mmap(struct mem_handle *handle)
+{
+	return nvmap_mmap((struct nvmap_handle_ref *)handle);
+}
+
+void nvhost_nvmap_munmap(struct mem_handle *handle, void *addr)
+{
+	nvmap_munmap((struct nvmap_handle_ref *)handle, addr);
+}
+
+struct mem_handle *nvhost_nvmap_get(struct mem_mgr *mgr, u32 id)
+{
+	return (struct mem_handle *)
+		nvmap_duplicate_handle_id((struct nvmap_client *)mgr, id);
+}
+
+int nvhost_init_nvmap_support(struct nvhost_chip_support *chip)
+{
+	chip->mem.alloc_mgr = nvhost_nvmap_alloc_mgr;
+	chip->mem.put_mgr = nvhost_nvmap_put_mgr;
+	chip->mem.get_mgr = nvhost_nvmap_get_mgr;
+	chip->mem.get_mgr_file = nvhost_nvmap_get_mgr_file;
+	chip->mem.alloc = nvhost_nvmap_alloc;
+	chip->mem.put = nvhost_nvmap_put;
+	chip->mem.get = nvhost_nvmap_get;
+	chip->mem.pin = nvhost_nvmap_pin;
+	chip->mem.unpin = nvhost_nvmap_unpin;
+	chip->mem.mmap = nvhost_nvmap_mmap;
+	chip->mem.munmap = nvhost_nvmap_munmap;
+
+	return 0;
+}