diff --git a/gralloc960/mali_gralloc_private_interface.cpp b/gralloc960/mali_gralloc_private_interface.cpp
new file mode 100644
index 0000000..2f84e37
--- /dev/null
+++ b/gralloc960/mali_gralloc_private_interface.cpp
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2017 ARM Limited. All rights reserved.
+ *
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc1.h>
+
+#include "mali_gralloc_private_interface.h"
+#include "mali_gralloc_buffer.h"
+#include "gralloc_helper.h"
+#include "gralloc_buffer_priv.h"
+#include "mali_gralloc_bufferdescriptor.h"
+
+#define CHECK_FUNCTION(A, B, C)                    \
+	do                                             \
+	{                                              \
+		if (A == B)                                \
+			return (gralloc1_function_pointer_t)C; \
+	} while (0)
+
+static int32_t mali_gralloc_private_get_buff_int_fmt(gralloc1_device_t *device, buffer_handle_t handle,
+                                                     uint64_t *internal_format)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || internal_format == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*internal_format = hnd->internal_format;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_fd(gralloc1_device_t *device, buffer_handle_t handle, int *fd)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || fd == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*fd = hnd->share_fd;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_int_dims(gralloc1_device_t *device, buffer_handle_t handle,
+                                                      int *internalWidth, int *internalHeight)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || internalWidth == NULL || internalHeight == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*internalWidth = hnd->internalWidth;
+	*internalHeight = hnd->internalHeight;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_offset(gralloc1_device_t *device, buffer_handle_t handle, int64_t *offset)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || offset == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*offset = hnd->offset;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_bytestride(gralloc1_device_t *device, buffer_handle_t handle,
+                                                        int *bytestride)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || bytestride == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*bytestride = hnd->byte_stride;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_yuvinfo(gralloc1_device_t *device, buffer_handle_t handle,
+                                                     mali_gralloc_yuv_info *yuvinfo)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || yuvinfo == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*yuvinfo = hnd->yuv_info;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_size(gralloc1_device_t *device, buffer_handle_t handle, int *size)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || size == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*size = hnd->size;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_flags(gralloc1_device_t *device, buffer_handle_t handle, int *flags)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || flags == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*flags = hnd->flags;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_buff_min_page_size(gralloc1_device_t *device, buffer_handle_t handle,
+                                                           int *min_pgsz)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || min_pgsz == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *hnd = static_cast<const private_handle_t *>(handle);
+	*min_pgsz = hnd->min_pgsz;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_get_attr_param(gralloc1_device_t *device, buffer_handle_t handle, buf_attr attr,
+                                                   int32_t *val, int32_t last_call)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || val == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *const_hnd = static_cast<const private_handle_t *>(handle);
+	private_handle_t *hnd = const_cast<private_handle_t *>(const_hnd);
+
+	if (hnd->attr_base == MAP_FAILED)
+	{
+		if (gralloc_buffer_attr_map(hnd, 1) < 0)
+		{
+			return GRALLOC1_ERROR_BAD_HANDLE;
+		}
+	}
+
+	if (gralloc_buffer_attr_read(hnd, attr, val) < 0)
+	{
+		gralloc_buffer_attr_unmap(hnd);
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	if (last_call)
+	{
+		gralloc_buffer_attr_unmap(hnd);
+	}
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_set_attr_param(gralloc1_device_t *device, buffer_handle_t handle, buf_attr attr,
+                                                   int32_t *val, int32_t last_call)
+{
+	GRALLOC_UNUSED(device);
+
+	if (private_handle_t::validate(handle) < 0 || val == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	const private_handle_t *const_hnd = static_cast<const private_handle_t *>(handle);
+	private_handle_t *hnd = const_cast<private_handle_t *>(const_hnd);
+
+	if (hnd->attr_base == MAP_FAILED)
+	{
+		if (gralloc_buffer_attr_map(hnd, 1) < 0)
+		{
+			return GRALLOC1_ERROR_BAD_HANDLE;
+		}
+	}
+
+	if (gralloc_buffer_attr_write(hnd, attr, val) < 0)
+	{
+		gralloc_buffer_attr_unmap(hnd);
+		return GRALLOC1_ERROR_BAD_HANDLE;
+	}
+
+	if (last_call)
+	{
+		gralloc_buffer_attr_unmap(hnd);
+	}
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+static int32_t mali_gralloc_private_set_priv_fmt(gralloc1_device_t *device, gralloc1_buffer_descriptor_t desc,
+                                                 uint64_t internal_format)
+{
+	GRALLOC_UNUSED(device);
+
+	buffer_descriptor_t *priv_desc = reinterpret_cast<buffer_descriptor_t *>(desc);
+
+	if (priv_desc == NULL)
+	{
+		return GRALLOC1_ERROR_BAD_DESCRIPTOR;
+	}
+
+	priv_desc->hal_format = internal_format;
+	priv_desc->format_type = MALI_GRALLOC_FORMAT_TYPE_INTERNAL;
+
+	return GRALLOC1_ERROR_NONE;
+}
+
+gralloc1_function_pointer_t mali_gralloc_private_interface_getFunction(int32_t descriptor)
+{
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_INT_FMT, mali_gralloc_private_get_buff_int_fmt);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_FD, mali_gralloc_private_get_buff_fd);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_INTERNAL_DIMS, mali_gralloc_private_get_buff_int_dims);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_OFFSET, mali_gralloc_private_get_buff_offset);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_BYTESTRIDE, mali_gralloc_private_get_buff_bytestride);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_YUVINFO, mali_gralloc_private_get_buff_yuvinfo);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_SIZE, mali_gralloc_private_get_buff_size);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_FLAGS, mali_gralloc_private_get_buff_flags);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_BUFF_MIN_PAGESIZE,
+	               mali_gralloc_private_get_buff_min_page_size);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_GET_ATTR_PARAM, mali_gralloc_private_get_attr_param);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_SET_ATTR_PARAM, mali_gralloc_private_set_attr_param);
+	CHECK_FUNCTION(descriptor, MALI_GRALLOC1_FUNCTION_SET_PRIV_FMT, mali_gralloc_private_set_priv_fmt);
+
+	return NULL;
+}