1 files changed, 91 insertions, 0 deletions

diff --git a/include/linux/tegra_ion.h b/include/linux/tegra_ion.h
new file mode 100644
index 00000000000..73e190908b8
--- /dev/null
+++ b/include/linux/tegra_ion.h
@@ -0,0 +1,91 @@
+/*
+ * include/linux/tegra_ion.h
+ *
+ * Copyright (C) 2011, NVIDIA Corporation.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/ion.h>
+
+#if !defined(__KERNEL__)
+#define __user
+#endif
+
+#ifndef _LINUX_TEGRA_ION_H
+#define _LINUX_TEGRA_ION_H
+
+struct tegra_ion_id_data {
+        struct ion_handle *handle;
+        unsigned long id;
+        size_t size;
+};
+
+struct tegra_ion_pin_data {
+        struct ion_handle **handles; /* array of handles to pin/unpin */
+        unsigned long *addr; /* array pf addresses to return */
+        unsigned long count; /* number of entries in handles */
+};
+
+/* Cache operations. */
+enum {
+        TEGRA_ION_CACHE_OP_WB = 0,
+        TEGRA_ION_CACHE_OP_INV,
+        TEGRA_ION_CACHE_OP_WB_INV,
+};
+
+struct tegra_ion_cache_maint_data {
+        unsigned long addr;
+        struct ion_handle *handle;
+        size_t len;
+        unsigned int op;
+};
+
+struct tegra_ion_rw_data {
+        unsigned long addr; /* user pointer*/
+        struct ion_handle *handle;
+        unsigned int offset; /* offset into handle mem */
+        unsigned int elem_size; /* individual atome size */
+        unsigned int mem_stride; /*delta in bytes between atoms in handle mem*/
+        unsigned int user_stride; /* delta in bytes between atoms in user */
+        unsigned int count; /* number of atoms to copy */
+};
+
+struct tegra_ion_get_params_data {
+        struct ion_handle *handle;
+        size_t size;
+        unsigned int align;
+        unsigned int heap;
+        unsigned long addr;
+};
+
+/* Custom Ioctl's. */
+enum {
+        TEGRA_ION_ALLOC_FROM_ID = 0,
+        TEGRA_ION_GET_ID,
+        TEGRA_ION_PIN,
+        TEGRA_ION_UNPIN,
+        TEGRA_ION_CACHE_MAINT,
+        TEGRA_ION_READ,
+        TEGRA_ION_WRITE,
+        TEGRA_ION_GET_PARAM,
+};
+
+/* List of heaps in the system. */
+enum {
+        TEGRA_ION_HEAP_CARVEOUT = 0,
+        TEGRA_ION_HEAP_IRAM,
+        TEGRA_ION_HEAP_VPR,
+        TEGRA_ION_HEAP_IOMMU
+};
+
+#endif /* _LINUX_TEGRA_ION_H */