add initial code

Change-Id: I06ac9f6c6fcd6c8e27c8770a62adec587a68e103

13 files changed, 1663 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..7bbbbd4
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+SooChan Lim <sc1.lim@samsung.com>
+Changyeon Lee <cyeon.lee@samsung.com>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..ef482e1
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,21 @@
+Copyright (C) 2021 Samsung Electronics co., Ltd. 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, sub license, 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 (including the
+next paragraph) 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 NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ChangeLog
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..af437a6
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = src
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/NEWS
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..3c9c3d3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# libtbm-msm
+TBM backend for Qualcomm GPU Adreno
diff --git a/autogen.sh b/autogen.sh
new file mode 100644
index 0000000..904cd67
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+srcdir=`dirname $0`
+test -z "$srcdir" && srcdir=.
+
+ORIGDIR=`pwd`
+cd $srcdir
+
+autoreconf -v --install || exit 1
+cd $ORIGDIR || exit $?
+
+$srcdir/configure --enable-maintainer-mode "$@"
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..169c05c
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,64 @@
+#
+#  Permission is hereby granted, free of charge, to any person obtaining a
+#  copy of this software and associated documentation files (the "Software"),
+#  to deal in the Software without restriction, including without limitation
+#  on the rights to use, copy, modify, merge, publish, distribute, sub
+#  license, and/or sell copies of the Software, and to permit persons to whom
+#  the Software is furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice (including the next
+#  paragraph) shall be included in all copies or substantial portions of the
+#  Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+#  ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+#  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+#  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+AC_PREREQ(2.60)
+AC_INIT(libtbm-msm, 1.0.0)
+AC_USE_SYSTEM_EXTENSIONS
+AC_CONFIG_SRCDIR([Makefile.am])
+AM_INIT_AUTOMAKE([dist-bzip2])
+
+AM_CONFIG_HEADER([config.h])
+
+AC_DISABLE_STATIC
+AC_PROG_LIBTOOL
+AC_PROG_CC
+
+AC_HEADER_STDC
+AC_SYS_LARGEFILE
+AC_FUNC_ALLOCA
+
+# Enable quiet compiles on automake 1.11.
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+PKG_CHECK_MODULES(LIBDRM, libdrm)
+PKG_CHECK_MODULES(LIBTBM, libtbm)
+PKG_CHECK_MODULES(DLOG, dlog)
+PKG_CHECK_MODULES(LIBUDEV, libudev)
+
+LIBTBM_MSM_CFLAGS="$LIBDRM_CFLAGS $LIBTBM_CFLAGS $DLOG_CFLAGS $LIBUDEV_CFLAGS "
+LIBTBM_MSM_LIBS="$LIBDRM_LIBS $LIBTBM_LIBS $DLOG_LIBS $LIBUDEV_LIBS "
+
+AC_SUBST(LIBTBM_MSM_CFLAGS)
+AC_SUBST(LIBTBM_MSM_LIBS)
+
+bufmgr_dir=${libdir#*/}
+AC_SUBST(bufmgr_dir)
+
+AC_OUTPUT([
+	Makefile
+	src/Makefile])
+
+echo ""
+echo "CFLAGS  : $CFLAGS"
+echo "LDFLAGS : $LDFLAGS"
+echo "LIBTBM_MSM_CFLAGS : $LIBTBM_MSM_CFLAGS"
+echo "LIBTBM_MSM_LIBS   : $LIBTBM_MSM_LIBS"
+echo "bufmgr_dir : $bufmgr_dir"
+echo ""
+
diff --git a/packaging/libtbm-msm.manifest b/packaging/libtbm-msm.manifest
new file mode 100644
index 0000000..97e8c31
--- /dev/null
+++ b/packaging/libtbm-msm.manifest
@@ -0,0 +1,5 @@
+<manifest>
+	<request>
+		<domain name="_"/>
+	</request>
+</manifest>
diff --git a/packaging/libtbm-msm.spec b/packaging/libtbm-msm.spec
new file mode 100644
index 0000000..29bf156
--- /dev/null
+++ b/packaging/libtbm-msm.spec
@@ -0,0 +1,51 @@
+Name:           libtbm-msm
+Version:        1.0.0
+Release:        1
+License:        MIT
+Summary:        Tizen Buffer Manager - drm msm backend
+Group:          System/Libraries
+ExcludeArch:    i586
+Source0:        %{name}-%{version}.tar.gz
+Source1001:	%name.manifest
+
+BuildRequires:  pkgconfig(libdrm)
+BuildRequires:  pkgconfig(libtbm)
+BuildRequires:  pkgconfig(dlog)
+BuildRequires:  pkgconfig(libudev)
+
+%description
+descriptionion: Tizen Buffer manager backend module uses drm msm
+
+%global TZ_SYS_RO_SHARE  %{?TZ_SYS_RO_SHARE:%TZ_SYS_RO_SHARE}%{!?TZ_SYS_RO_SHARE:/usr/share}
+
+%prep
+%setup -q
+cp %{SOURCE1001} .
+
+%build
+
+%reconfigure --prefix=%{_prefix} --libdir=%{_libdir}/bufmgr \
+            CFLAGS="${CFLAGS} -Wall -Werror" LDFLAGS="${LDFLAGS} -Wl,--hash-style=both -Wl,--as-needed"
+
+make %{?_smp_mflags}
+
+%install
+rm -rf %{buildroot}
+%make_install
+
+
+%post
+if [ -f %{_libdir}/bufmgr/libtbm_default.so ]; then
+    rm -rf %{_libdir}/bufmgr/libtbm_default.so
+fi
+ln -s libtbm_msm.so %{_libdir}/bufmgr/libtbm_default.so
+
+%postun -p /sbin/ldconfig
+
+%files
+%manifest %{name}.manifest
+%defattr(-,root,root,-)
+%license COPYING
+%{_libdir}/bufmgr/libtbm_*.so*
+
+
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..8c91b09
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,12 @@
+AM_CFLAGS = \
+	@LIBTBM_MSM_CFLAGS@ \
+	-I$(top_srcdir) \
+	-I$(top_srcdir)/src \
+	-I/usr/include/drm
+
+libtbm_msm_la_LTLIBRARIES = libtbm_msm.la
+libtbm_msm_ladir = /${bufmgr_dir}
+libtbm_msm_la_LIBADD = @LIBTBM_MSM_LIBS@
+
+libtbm_msm_la_SOURCES = \
+	tbm_bufmgr_msm.c
diff --git a/src/tbm_bufmgr_msm.c b/src/tbm_bufmgr_msm.c
new file mode 100644
index 0000000..506673b
--- /dev/null
+++ b/src/tbm_bufmgr_msm.c
@@ -0,0 +1,1493 @@
+/**************************************************************************
+
+libtbm_msm
+
+Copyright 2021 Samsung Electronics co., Ltd. All Rights Reserved.
+
+Contact: SooChan Lim <sc1.lim@samsung.com>,
+         Junkyeong Kim <jk0430.kim@samsung.com>,
+         Changyeon Lee <cyeon.lee@samsung.com>
+
+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, sub license, 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 (including the
+next paragraph) 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 NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
+
+**************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <libudev.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <xf86drm.h>
+#include <pthread.h>
+#include <tbm_backend.h>
+#include <tbm_drm_helper.h>
+#include <tbm_log.h>
+#include <msm_drm.h>
+
+#define TBM_COLOR_FORMAT_COUNT 4
+
+#define SIZE_ALIGN(value, base) (((value) + ((base) - 1)) & ~((base) - 1))
+
+#define TBM_SURFACE_ALIGNMENT_PLANE (64)
+#define TBM_SURFACE_ALIGNMENT_PITCH_RGB (128)
+#define TBM_SURFACE_ALIGNMENT_PITCH_YUV (16)
+
+typedef struct _tbm_bufmgr_msm *tbm_bufmgr_msm;
+typedef struct _tbm_bo_msm *tbm_bo_msm;
+
+/* tbm buffor object for msm */
+struct _tbm_bo_msm {
+	int fd;
+
+	unsigned int name;	/* FLINK ID */
+
+	unsigned int gem;	/* GEM Handle */
+
+	int dmabuf;			/* fd for dmabuf */
+
+	void *pBase;		/* virtual address */
+
+	unsigned int size;
+
+	unsigned int flags_msm;
+	unsigned int flags_tbm;
+
+	pthread_mutex_t mutex;
+	int device;
+	int opt;
+
+	tbm_bufmgr_msm bufmgr_msm;
+};
+
+/* tbm bufmgr private for msm */
+struct _tbm_bufmgr_msm {
+	int fd;
+	void* hashBos;
+
+	char *device_name;
+	void *bind_display;
+
+	tbm_backend_bufmgr_func *bufmgr_func;
+	tbm_backend_bo_func *bo_func;
+
+	tbm_bufmgr bufmgr;
+};
+
+char *STR_DEVICE[] = {
+	"DEF",
+	"CPU",
+	"2D",
+	"3D",
+	"MM"
+};
+
+char *STR_OPT[] = {
+	"NONE",
+	"RD",
+	"WR",
+	"RDWR"
+};
+
+uint32_t tbm_msm_color_format_list[TBM_COLOR_FORMAT_COUNT] = {
+									TBM_FORMAT_ARGB8888,
+									TBM_FORMAT_XRGB8888,
+									TBM_FORMAT_NV12,
+									TBM_FORMAT_YUV420
+									};
+
+
+static int
+_tbm_msm_open_drm()
+{
+	struct udev *udev = NULL;
+	struct udev_enumerate *e = NULL;
+	struct udev_list_entry *entry = NULL;
+	struct udev_device *device = NULL, *drm_device = NULL, *pci = NULL;
+	const char *filepath, *id;
+	struct stat s;
+	int fd = -1;
+	int ret;
+
+	udev = udev_new();
+	if (!udev) {
+		TBM_ERR("udev_new() failed.\n");
+		return -1;
+	}
+
+	e = udev_enumerate_new(udev);
+	udev_enumerate_add_match_subsystem(e, "drm");
+	udev_enumerate_add_match_sysname(e, "card[0-9]*");
+	udev_enumerate_scan_devices(e);
+
+	drm_device = NULL;
+	udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
+		filepath = udev_list_entry_get_name(entry);
+		device = udev_device_new_from_syspath(udev, filepath);
+		if (!device)
+			continue;
+
+		pci = udev_device_get_parent_with_subsystem_devtype(device, "pci", NULL);
+		if (pci) {
+			id = udev_device_get_sysattr_value(pci, "boot_vga");
+			if (id && !strcmp(id, "1")) {
+				if (drm_device)
+				udev_device_unref(drm_device);
+				drm_device = device;
+				break;
+			}
+		}
+
+		if (!drm_device)
+			drm_device = device;
+		else
+			udev_device_unref(device);
+	}
+
+	udev_enumerate_unref(e);
+
+	/* Get device file path. */
+	filepath = udev_device_get_devnode(drm_device);
+	if (!filepath) {
+		TBM_ERR("udev_device_get_devnode() failed.\n");
+		udev_device_unref(drm_device);
+		udev_unref(udev);
+		return -1;
+	}
+
+	/* Open DRM device file and check validity. */
+	fd = open(filepath, O_RDWR | O_CLOEXEC);
+	if (fd < 0) {
+		TBM_ERR("open(%s, O_RDWR | O_CLOEXEC) failed.\n");
+		udev_device_unref(drm_device);
+		udev_unref(udev);
+		return -1;
+	}
+
+	ret = fstat(fd, &s);
+	if (ret) {
+		TBM_ERR("fstat() failed %s.\n");
+		close(fd);
+		udev_device_unref(drm_device);
+		udev_unref(udev);
+		return -1;
+	}
+
+	udev_device_unref(drm_device);
+	udev_unref(udev);
+
+	return fd;
+}
+
+static unsigned int
+_get_msm_flag_from_tbm(unsigned int ftbm)
+{
+	unsigned int flags = 0;
+
+	if (ftbm & TBM_BO_SCANOUT)
+		flags |= MSM_BO_SCANOUT;
+
+	if (ftbm & TBM_BO_NONCACHABLE)
+		flags |= MSM_BO_UNCACHED;
+	else
+		flags |= MSM_BO_WC; // freedreno use WC by default
+
+	return flags;
+}
+
+static unsigned int
+_get_tbm_flag_from_msm(unsigned int fmsm)
+{
+	unsigned int flags = 0;
+
+	if (fmsm & MSM_BO_SCANOUT)
+		flags |= TBM_BO_SCANOUT;
+
+	if (fmsm & MSM_BO_UNCACHED)
+		flags |= TBM_BO_NONCACHABLE;
+
+	return flags;
+}
+
+static unsigned int
+_get_msm_access_op_from_tbm(unsigned int tbm_op)
+{
+	unsigned int op = 0;
+
+	if (tbm_op & TBM_OPTION_READ)
+		op |= MSM_PREP_READ;
+
+	if (tbm_op & TBM_OPTION_WRITE)
+		op |= MSM_PREP_WRITE;
+
+	return op;
+}
+
+static unsigned int
+_get_name(int fd, unsigned int gem)
+{
+	struct drm_gem_flink arg = {0, };
+
+	arg.handle = gem;
+
+	if (drmIoctl(fd, DRM_IOCTL_GEM_FLINK, &arg)) {
+		TBM_ERR("fail to DRM_IOCTL_GEM_FLINK gem:%d (%m)", gem);
+		return 0;
+	}
+
+	return (unsigned int)arg.name;
+}
+
+static int
+_get_dmabuf_fd(int fd, unsigned int gem)
+{
+	struct drm_prime_handle arg = {0, };
+
+	arg.handle = gem;
+
+	if (drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg)) {
+		TBM_ERR("fail to DRM_IOCTL_PRIME_HANDLE_TO_FD gem:%d (%m)", gem);
+		return -1;
+	}
+
+	return arg.fd;
+}
+
+static tbm_bo_handle
+_msm_bo_handle(tbm_bo_msm bo_msm, int device)
+{
+	tbm_bo_handle bo_handle;
+
+	memset(&bo_handle, 0x0, sizeof(uint64_t));
+
+	switch (device)	{
+	case TBM_DEVICE_DEFAULT:
+	case TBM_DEVICE_2D:
+		bo_handle.u32 = (uint32_t)bo_msm->gem;
+		break;
+	case TBM_DEVICE_CPU:
+		if (!bo_msm->pBase) {
+			void *map = NULL;
+
+			struct drm_msm_gem_info arg = {0, };
+
+			arg.handle = bo_msm->gem;
+
+			if (drmCommandWriteRead(bo_msm->fd, DRM_MSM_GEM_INFO, &arg, sizeof(arg))) {
+				TBM_ERR("fail to DRM_MSM_GEM_INFO gem:%d (%m)", bo_msm->gem);
+				return (tbm_bo_handle) NULL;
+			}
+
+			map = mmap(NULL, bo_msm->size, PROT_READ|PROT_WRITE, MAP_SHARED,
+						bo_msm->fd, arg.offset);
+			if (map == MAP_FAILED) {
+				TBM_ERR("Cannot usrptr gem:%d", bo_msm->gem);
+				return (tbm_bo_handle) NULL;
+			}
+			bo_msm->pBase = map;
+		}
+		bo_handle.ptr = (void *)bo_msm->pBase;
+		break;
+	case TBM_DEVICE_3D:
+		bo_handle.u32 = (uint32_t)bo_msm->dmabuf;
+		break;
+	case TBM_DEVICE_MM:
+		bo_handle.u32 = (uint32_t)bo_msm->dmabuf;
+		break;
+	default:
+		TBM_ERR("Not supported device:%d", device);
+		bo_handle.ptr = (void *) NULL;
+		break;
+	}
+
+	return bo_handle;
+}
+
+static tbm_bufmgr_capability
+tbm_msm_bufmgr_get_capabilities(tbm_backend_bufmgr_data *bufmgr_data, tbm_error_e *error)
+{
+	tbm_bufmgr_capability capabilities = TBM_BUFMGR_CAPABILITY_NONE;
+
+	capabilities = TBM_BUFMGR_CAPABILITY_SHARE_KEY|TBM_BUFMGR_CAPABILITY_SHARE_FD;
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return capabilities;
+}
+
+static tbm_error_e
+tbm_msm_bufmgr_bind_native_display(tbm_backend_bufmgr_data *bufmgr_data, tbm_native_display *native_display)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	TBM_RETURN_VAL_IF_FAIL(bufmgr_msm != NULL, TBM_ERROR_INVALID_PARAMETER);
+
+	if (!tbm_drm_helper_wl_auth_server_init(native_display, bufmgr_msm->fd,
+				bufmgr_msm->device_name, 0)) {
+		TBM_ERR("fail to tbm_drm_helper_wl_server_init");
+		return TBM_ERROR_INVALID_OPERATION;
+	}
+
+	bufmgr_msm->bind_display = native_display;
+
+	return TBM_ERROR_NONE;
+}
+
+static tbm_error_e
+tbm_msm_bufmgr_get_supported_formats(tbm_backend_bufmgr_data *bufmgr_data,
+							uint32_t **formats, uint32_t *num)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	uint32_t *color_formats;
+
+	TBM_RETURN_VAL_IF_FAIL(bufmgr_msm != NULL, TBM_ERROR_INVALID_PARAMETER);
+
+	color_formats = (uint32_t *)calloc(1, sizeof(uint32_t) * TBM_COLOR_FORMAT_COUNT);
+	if (color_formats == NULL)
+		return TBM_ERROR_OUT_OF_MEMORY;
+
+	memcpy(color_formats, tbm_msm_color_format_list, sizeof(uint32_t)*TBM_COLOR_FORMAT_COUNT);
+
+	*formats = color_formats;
+	*num = TBM_COLOR_FORMAT_COUNT;
+
+	TBM_DBG("supported format count = %d", *num);
+
+	return TBM_ERROR_NONE;
+}
+
+static tbm_error_e
+tbm_msm_bufmgr_get_plane_data(tbm_backend_bufmgr_data *bufmgr_data,
+							tbm_format format, int plane_idx, int width,
+							int height, uint32_t *size, uint32_t *offset,
+							uint32_t *pitch, int *bo_idx)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	int bpp;
+	int _offset = 0;
+	int _pitch = 0;
+	int _size = 0;
+	int _bo_idx = 0;
+
+	TBM_RETURN_VAL_IF_FAIL(bufmgr_msm != NULL, TBM_ERROR_INVALID_PARAMETER);
+
+	switch (format) {
+	/* 16 bpp RGB */
+	case TBM_FORMAT_XRGB4444:
+	case TBM_FORMAT_XBGR4444:
+	case TBM_FORMAT_RGBX4444:
+	case TBM_FORMAT_BGRX4444:
+	case TBM_FORMAT_ARGB4444:
+	case TBM_FORMAT_ABGR4444:
+	case TBM_FORMAT_RGBA4444:
+	case TBM_FORMAT_BGRA4444:
+	case TBM_FORMAT_XRGB1555:
+	case TBM_FORMAT_XBGR1555:
+	case TBM_FORMAT_RGBX5551:
+	case TBM_FORMAT_BGRX5551:
+	case TBM_FORMAT_ARGB1555:
+	case TBM_FORMAT_ABGR1555:
+	case TBM_FORMAT_RGBA5551:
+	case TBM_FORMAT_BGRA5551:
+	case TBM_FORMAT_RGB565:
+		bpp = 16;
+		_offset = 0;
+		_pitch = SIZE_ALIGN((width * bpp)>>3, TBM_SURFACE_ALIGNMENT_PITCH_RGB);
+		_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+		_bo_idx = 0;
+		break;
+	/* 24 bpp RGB */
+	case TBM_FORMAT_RGB888:
+	case TBM_FORMAT_BGR888:
+		bpp = 24;
+		_offset = 0;
+		_pitch = SIZE_ALIGN((width * bpp)>>3, TBM_SURFACE_ALIGNMENT_PITCH_RGB);
+		_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+		_bo_idx = 0;
+		break;
+	/* 32 bpp RGB */
+	case TBM_FORMAT_XRGB8888:
+	case TBM_FORMAT_XBGR8888:
+	case TBM_FORMAT_RGBX8888:
+	case TBM_FORMAT_BGRX8888:
+	case TBM_FORMAT_ARGB8888:
+	case TBM_FORMAT_ABGR8888:
+	case TBM_FORMAT_RGBA8888:
+	case TBM_FORMAT_BGRA8888:
+		bpp = 32;
+		_offset = 0;
+		_pitch = SIZE_ALIGN((width * bpp)>>3, TBM_SURFACE_ALIGNMENT_PITCH_RGB);
+		_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+		_bo_idx = 0;
+		break;
+
+	/* packed YCbCr */
+	case TBM_FORMAT_YUYV:
+	case TBM_FORMAT_YVYU:
+	case TBM_FORMAT_UYVY:
+	case TBM_FORMAT_VYUY:
+	case TBM_FORMAT_AYUV:
+		bpp = 32;
+		_offset = 0;
+		_pitch = SIZE_ALIGN((width * bpp)>>3, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+		_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+		_bo_idx = 0;
+		break;
+
+	/*
+	* 2 plane YCbCr
+	* index 0 = Y plane, [7:0] Y
+	* index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
+	* or
+	* index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
+	*/
+	case TBM_FORMAT_NV12:
+	case TBM_FORMAT_NV21:
+		bpp = 12;
+		//if (plane_idx == 0)
+		{
+			_offset = 0;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 0)
+				break;
+		}
+		//else if (plane_idx == 1)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * (height / 2), TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+		}
+		break;
+	case TBM_FORMAT_NV16:
+	case TBM_FORMAT_NV61:
+		bpp = 16;
+		//if (plane_idx == 0)
+		{
+			_offset = 0;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 0)
+				break;
+		}
+		//else if (plane_idx == 1)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+		}
+		break;
+
+	/*
+	* 3 plane YCbCr
+	* index 0: Y plane, [7:0] Y
+	* index 1: Cb plane, [7:0] Cb
+	* index 2: Cr plane, [7:0] Cr
+	* or
+	* index 1: Cr plane, [7:0] Cr
+	* index 2: Cb plane, [7:0] Cb
+	*/
+	/*
+	NATIVE_BUFFER_FORMAT_YV12
+	NATIVE_BUFFER_FORMAT_I420
+	*/
+	case TBM_FORMAT_YUV410:
+	case TBM_FORMAT_YVU410:
+		bpp = 9;
+		break;
+	case TBM_FORMAT_YUV411:
+	case TBM_FORMAT_YVU411:
+	case TBM_FORMAT_YUV420:
+	case TBM_FORMAT_YVU420:
+		bpp = 12;
+		//if (plane_idx == 0)
+		{
+			_offset = 0;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 0)
+				break;
+		}
+		//else if (plane_idx == 1)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width/2, TBM_SURFACE_ALIGNMENT_PITCH_YUV/2);
+			_size = SIZE_ALIGN(_pitch * (height / 2), TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 1)
+				break;
+		}
+		//else if (plane_idx == 2)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width/2, TBM_SURFACE_ALIGNMENT_PITCH_YUV/2);
+			_size = SIZE_ALIGN(_pitch * (height / 2), TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+		}
+		break;
+	case TBM_FORMAT_YUV422:
+	case TBM_FORMAT_YVU422:
+		bpp = 16;
+		//if (plane_idx == 0)
+		{
+			_offset = 0;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 0)
+				break;
+		}
+		//else if (plane_idx == 1)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width/2, TBM_SURFACE_ALIGNMENT_PITCH_YUV/2);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 1)
+				break;
+		}
+		//else if (plane_idx == 2)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width/2, TBM_SURFACE_ALIGNMENT_PITCH_YUV/2);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+		}
+		break;
+	case TBM_FORMAT_YUV444:
+	case TBM_FORMAT_YVU444:
+		bpp = 24;
+		//if (plane_idx == 0)
+		{
+			_offset = 0;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 0)
+				break;
+		}
+		//else if (plane_idx == 1)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+			if (plane_idx == 1)
+				break;
+		}
+		//else if (plane_idx == 2)
+		{
+			_offset += _size;
+			_pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+			_size = SIZE_ALIGN(_pitch * height, TBM_SURFACE_ALIGNMENT_PLANE);
+			_bo_idx = 0;
+		}
+		break;
+	default:
+		bpp = 0;
+		break;
+	}
+
+	*size = _size;
+	*offset = _offset;
+	*pitch = _pitch;
+	*bo_idx = _bo_idx;
+
+	return TBM_ERROR_NONE;
+}
+
+static tbm_backend_bo_data *
+tbm_msm_bufmgr_alloc_bo(tbm_backend_bufmgr_data *bufmgr_data, unsigned int size,
+					tbm_bo_memory_type flags, tbm_error_e *error)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	tbm_bo_msm bo_msm;
+	unsigned int msm_flags;
+
+	if (bufmgr_msm == NULL) {
+		TBM_ERR("bufmgr_data is null\n");
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return NULL;
+	}
+
+	bo_msm = calloc(1, sizeof(struct _tbm_bo_msm));
+	if (!bo_msm) {
+		TBM_ERR("fail to allocate the bo_msm private\n");
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		return NULL;
+	}
+
+	bo_msm->bufmgr_msm = bufmgr_msm;
+
+	msm_flags = _get_msm_flag_from_tbm(flags);
+
+	struct drm_msm_gem_new arg = {0 ,};
+
+	arg.size = size;
+	arg.flags = msm_flags;
+
+	if (drmCommandWriteRead(bufmgr_msm->fd, DRM_MSM_GEM_NEW, &arg, sizeof(arg))) {
+		TBM_ERR("Cannot create bo_msm(flag:%x, size:%d) (%m)", arg.flags, (unsigned int)size);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail;
+	}
+
+	bo_msm->fd = bufmgr_msm->fd;
+	bo_msm->gem = arg.handle;
+	bo_msm->size = arg.size;
+	bo_msm->flags_tbm = flags;
+	bo_msm->flags_msm = msm_flags;
+
+	bo_msm->name = _get_name(bo_msm->fd, bo_msm->gem);
+	if (!bo_msm->name) {
+		TBM_ERR("Cannot get name bo_msm:%p", bo_msm);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail;
+	}
+
+	bo_msm->dmabuf = _get_dmabuf_fd(bo_msm->fd, bo_msm->gem);
+	if (bo_msm->dmabuf < 0) {
+		TBM_ERR("Cannot get fd bo_msm:%p", bo_msm);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail;
+	}
+
+	pthread_mutex_init(&bo_msm->mutex, NULL);
+
+	/* add bo to hash */
+	if (drmHashInsert(bufmgr_msm->hashBos, bo_msm->name, (void *)bo_msm) < 0)
+		TBM_ERR("error Cannot insert bo to Hash(%d)", bo_msm->name);
+
+	TBM_DBG("     bo_msm:%p, gem:%d(%d), flags:%d(%d), size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->flags_tbm,
+			bo_msm->size);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return (tbm_backend_bo_data *)bo_msm;
+
+fail:
+	if (bo_msm && bo_msm->gem) {
+		struct drm_gem_close close_arg = {0 ,};
+
+		close_arg.handle = bo_msm->gem;
+
+		drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+	}
+
+	if (bo_msm) free(bo_msm);
+
+	return NULL;
+}
+
+static tbm_backend_bo_data *
+tbm_msm_bufmgr_import_fd(tbm_backend_bufmgr_data *bufmgr_data, tbm_fd key, tbm_error_e *error)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	tbm_bo_msm bo_msm;
+	unsigned int gem = 0;
+	unsigned int name;
+	int ret;
+	unsigned int real_size = -1;
+
+	if (bufmgr_msm == NULL) {
+		TBM_ERR("bufmgr_data is null\n");
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return NULL;
+	}
+
+	//getting handle from fd
+	struct drm_prime_handle arg = {0 ,};
+
+	arg.fd = key;
+	arg.flags = 0;
+
+	if (drmIoctl(bufmgr_msm->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &arg)) {
+		TBM_ERR("Cannot get gem handle from fd:%d (%m)", arg.fd);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return NULL;
+	}
+	gem = arg.handle;
+
+	name = _get_name(bufmgr_msm->fd, gem);
+	if (name == 0) {
+		TBM_ERR("Cannot get name from gem:%d, fd:%d (%m)", gem, key);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return NULL;
+	}
+
+	ret = drmHashLookup(bufmgr_msm->hashBos, name, (void **)&bo_msm);
+	if (ret == 0) {
+		if (gem == bo_msm->gem) {
+			if (error)
+				*error = TBM_ERROR_NONE;
+			return bo_msm;
+		}
+	}
+
+	/* Determine size of bo.  The fd-to-handle ioctl really should
+	 * return the size, but it doesn't.  If we have kernel 3.12 or
+	 * later, we can lseek on the prime fd to get the size.  Older
+	 * kernels will just fail, in which case we fall back to the
+	 * provided (estimated or guess size). */
+	real_size = lseek(key, 0, SEEK_END);
+
+	struct drm_gem_open open_arg = {0, };
+
+	open_arg.name = name;
+
+	/* Open the same GEM object only for finding out its size */
+	if (drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_OPEN, &open_arg)) {
+		TBM_ERR("Cannot get gem info from gem:%d, fd:%d (%m)", gem, key);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return NULL;
+	}
+
+	/* Free gem handle to avoid a memory leak*/
+	struct drm_gem_close gem_close = {0, };
+
+	gem_close.handle = open_arg.handle;
+	if (drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_CLOSE, &gem_close)) {
+		TBM_ERR("Cannot close gem_handle. gem:%d (%m)", open_arg.handle);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return NULL;
+	}
+
+	if (real_size == -1)
+		real_size = open_arg.size;
+
+	bo_msm = calloc(1, sizeof(struct _tbm_bo_msm));
+	if (!bo_msm) {
+		TBM_ERR("bo_msm:%p fail to allocate the bo_msm", bo_msm);
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		return NULL;
+	}
+
+	bo_msm->bufmgr_msm = bufmgr_msm;
+	bo_msm->fd = bufmgr_msm->fd;
+	bo_msm->gem = gem;
+	bo_msm->size = real_size;
+	bo_msm->flags_msm = 0;
+	bo_msm->flags_tbm = _get_tbm_flag_from_msm(bo_msm->flags_msm);
+	bo_msm->name = name;
+	bo_msm->dmabuf = _get_dmabuf_fd(bo_msm->fd, bo_msm->gem);
+	if (bo_msm->dmabuf < 0) {
+		TBM_ERR("Cannot get fd bo_msm:%p", bo_msm);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail;
+	}
+
+	/* add bo_msm to hash */
+	if (drmHashInsert(bufmgr_msm->hashBos, bo_msm->name, (void *)bo_msm) < 0)
+		TBM_ERR("bo_msm:%p Cannot insert bo_msm to Hash(%d) from gem:%d, fd:%d",
+				bo_msm, bo_msm->name, gem, key);
+
+	TBM_DBG(" bo_msm:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			key,
+			bo_msm->flags_tbm,
+			bo_msm->size);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return (tbm_backend_bo_data *)bo_msm;
+
+fail:
+	if (bo_msm && bo_msm->gem) {
+		struct drm_gem_close close_arg = {0, };
+
+		close_arg.handle = bo_msm->gem;
+
+		drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+	}
+
+	if (bo_msm) free(bo_msm);
+
+	return NULL;
+}
+
+static tbm_backend_bo_data *
+tbm_msm_bufmgr_import_key(tbm_backend_bufmgr_data *bufmgr_data, tbm_key key, tbm_error_e *error)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	tbm_bo_msm bo_msm;
+	int ret;
+
+	if (bufmgr_msm == NULL) {
+		TBM_ERR("bufmgr_data is null\n");
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return NULL;
+	}
+
+	ret = drmHashLookup(bufmgr_msm->hashBos, key, (void **)&bo_msm);
+	if (ret == 0) {
+		if (error)
+			*error = TBM_ERROR_NONE;
+		return (tbm_backend_bo_data *)bo_msm;
+	}
+
+	struct drm_gem_open arg = {0 ,};
+
+	arg.name = key;
+
+	if (drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_OPEN, &arg)) {
+		TBM_ERR("Cannot open gem name:%d (%m)", key);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return NULL;
+	}
+
+	bo_msm = calloc(1, sizeof(struct _tbm_bo_msm));
+	if (!bo_msm) {
+		TBM_ERR("fail to allocate the bo_msm private");
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		return NULL;
+	}
+
+	bo_msm->bufmgr_msm = bufmgr_msm;
+	bo_msm->fd = bufmgr_msm->fd;
+	bo_msm->gem = arg.handle;
+	bo_msm->size = arg.size;
+	bo_msm->flags_msm = 0;
+	bo_msm->flags_tbm = _get_tbm_flag_from_msm(bo_msm->flags_msm);
+	bo_msm->name = key;
+	bo_msm->dmabuf = _get_dmabuf_fd(bo_msm->fd, bo_msm->gem);
+	if (bo_msm->dmabuf < 0) {
+		TBM_ERR("Cannot get fd bo_msm:%p", bo_msm);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail;
+	}
+
+	/* add bo to hash */
+	if (drmHashInsert(bufmgr_msm->hashBos, bo_msm->name, (void *)bo_msm) < 0)
+		TBM_ERR("Cannot insert bo_msm to Hash(%d)", bo_msm->name);
+
+	TBM_DBG("    bo_msm:%p, gem:%d(%d), fd:%d, flags:%d(%d), size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			bo_msm->flags_tbm,
+			bo_msm->size);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return (tbm_backend_bo_data *)bo_msm;
+
+fail:
+	if (bo_msm && bo_msm->gem) {
+		struct drm_gem_close close_arg = {0, };
+
+		close_arg.handle = bo_msm->gem;
+
+		drmIoctl(bufmgr_msm->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+	}
+
+	if (bo_msm) free(bo_msm);
+
+	return NULL;
+}
+
+static void
+tbm_msm_bo_free(tbm_backend_bo_data *bo_data)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+	tbm_bo_msm temp;
+	tbm_bufmgr_msm bufmgr_msm;
+	int ret;
+
+	if (!bo_data)
+		return;
+
+	bufmgr_msm = bo_msm->bufmgr_msm;
+	if (!bufmgr_msm)
+		return;
+
+	TBM_DBG("      bo_msm:%p, gem:%d(%d), fd:%d, size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			bo_msm->size);
+
+	if (bo_msm->pBase) {
+		if (munmap(bo_msm->pBase, bo_msm->size) == -1) {
+			TBM_ERR("bo_msm:%p fail to munmap (%m)", bo_msm);
+		}
+	}
+
+	/* close dmabuf */
+	if (bo_msm->dmabuf) {
+		close(bo_msm->dmabuf);
+		bo_msm->dmabuf = -1;
+	}
+
+	/* delete bo from hash */
+	ret = drmHashLookup(bufmgr_msm->hashBos, bo_msm->name, (void**)&temp);
+	if (ret == 0)
+		drmHashDelete(bufmgr_msm->hashBos, bo_msm->name);
+	else
+		TBM_ERR("Cannot find bo_msm to Hash(%d), ret=%d", bo_msm->name, ret);
+
+	if (temp != bo_msm)
+		TBM_ERR("hashBos probably has several BOs with same name!!!");
+
+	/* Free gem handle */
+	struct drm_gem_close arg = {0, };
+
+	arg.handle = bo_msm->gem;
+
+	if (drmIoctl(bo_msm->fd, DRM_IOCTL_GEM_CLOSE, &arg))
+		TBM_ERR("bo_msm:%p fail to gem close (%m)\n", bo_msm);
+
+	free(bo_msm);
+}
+
+static int
+tbm_msm_bo_get_size(tbm_backend_bo_data *bo_data, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return 0;
+	}
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return bo_msm->size;
+}
+
+static tbm_bo_memory_type
+tbm_msm_bo_get_memory_type(tbm_backend_bo_data *bo_data, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return TBM_BO_DEFAULT;
+	}
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return bo_msm->flags_tbm;
+}
+
+static tbm_bo_handle
+tbm_msm_bo_get_handle(tbm_backend_bo_data *bo_data, tbm_bo_device_type device, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+	tbm_bo_handle bo_handle;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	if (!bo_msm->gem) {
+		TBM_ERR("Cannot map gem:%d", bo_msm->gem);
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	TBM_DBG("bo_msm:%p, gem:%d(%d), fd:%d, flags:%d, size:%d, %s",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			bo_msm->flags_tbm,
+			bo_msm->size,
+			STR_DEVICE[device]);
+
+	/*Get mapped bo_handle*/
+	bo_handle = _msm_bo_handle(bo_msm, device);
+	if (bo_handle.ptr == NULL) {
+		TBM_ERR("Cannot get handle: gem:%d, device:%d\n",
+			bo_msm->gem, device);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return (tbm_bo_handle) NULL;
+	}
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return bo_handle;
+}
+
+static tbm_bo_handle
+tbm_msm_bo_map(tbm_backend_bo_data *bo_data, tbm_bo_device_type device,
+				tbm_bo_access_option opt, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+	tbm_bo_handle bo_handle;
+	tbm_bufmgr_msm bufmgr_msm;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	bufmgr_msm = bo_msm->bufmgr_msm;
+	if (!bufmgr_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	if (!bo_msm->gem) {
+		TBM_ERR("Cannot map gem:%d", bo_msm->gem);
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	TBM_DBG("       bo_msm:%p, gem:%d(%d), fd:%d, %s, %s",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			STR_DEVICE[device],
+			STR_OPT[opt]);
+
+	/*Get mapped bo_handle*/
+	bo_handle = _msm_bo_handle(bo_msm, device);
+	if (bo_handle.ptr == NULL) {
+		TBM_ERR("Cannot get handle: gem:%d, device:%d, opt:%d",
+				bo_msm->gem, device, opt);
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return (tbm_bo_handle) NULL;
+	}
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return bo_handle;
+}
+
+static tbm_error_e
+tbm_msm_bo_unmap(tbm_backend_bo_data *bo_data)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+	tbm_bufmgr_msm bufmgr_msm;
+
+	if (!bo_msm)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	bufmgr_msm = bo_msm->bufmgr_msm;
+	if (!bufmgr_msm)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	if (!bo_msm->gem)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	TBM_DBG("     bo_msm:%p, gem:%d(%d), fd:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf);
+
+	return TBM_ERROR_NONE;
+}
+
+static tbm_error_e
+tbm_msm_bo_lock(tbm_backend_bo_data *bo_data, tbm_bo_device_type device,
+				tbm_bo_access_option opt)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+
+	if (!bo_msm)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	if (!bo_msm->gem)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	if (device != TBM_DEVICE_CPU)
+		return TBM_ERROR_NONE;
+
+	struct drm_msm_gem_cpu_prep arg = {0, };
+
+	arg.handle = bo_msm->gem;
+	arg.op = _get_msm_access_op_from_tbm(opt);
+	arg.timeout.tv_sec = 1;
+	arg.timeout.tv_nsec = 0;
+
+	if (drmCommandWrite(bo_msm->fd, DRM_MSM_GEM_CPU_PREP, &arg, sizeof(arg))) {
+		TBM_ERR("fail to DRM_MSM_GEM_CPU_PREP gem:%d (%m)", bo_msm->gem);
+		return TBM_ERROR_INVALID_OPERATION;
+	}
+
+	bo_msm->device = TBM_DEVICE_CPU;
+
+	TBM_DBG("     bo_msm:%p, gem:%d(%d), fd:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf);
+
+	return TBM_ERROR_NONE;
+}
+
+static tbm_error_e
+tbm_msm_bo_unlock(tbm_backend_bo_data *bo_data)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+
+	if (!bo_msm)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	if (!bo_msm->gem)
+		return TBM_ERROR_INVALID_PARAMETER;
+
+	if (bo_msm->device != TBM_DEVICE_CPU)
+		return TBM_ERROR_NONE;
+
+	struct drm_msm_gem_cpu_fini arg = {0, };
+
+	arg.handle = bo_msm->gem;
+
+	if (drmCommandWrite(bo_msm->fd, DRM_MSM_GEM_CPU_FINI, &arg, sizeof(arg))) {
+		TBM_ERR("fail to DRM_MSM_GEM_CPU_FINI gem:%d (%m)", bo_msm->gem);
+		return TBM_ERROR_INVALID_OPERATION;
+	}
+
+	TBM_DBG("     bo_msm:%p, gem:%d(%d), fd:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf);
+
+	return TBM_ERROR_NONE;
+}
+
+tbm_fd
+tbm_msm_bo_export_fd(tbm_backend_bo_data *bo_data, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+	int fd = -1;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return -1;
+	}
+
+	fd = _get_dmabuf_fd(bo_msm->fd, bo_msm->gem);
+	if (fd < 0) {
+		TBM_ERR("bo_msm:%p Cannot dmabuf=%d",
+				bo_msm, bo_msm->gem);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		return (tbm_fd)-1;
+	}
+
+	TBM_DBG(" bo_msm:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			fd,
+			bo_msm->flags_tbm,
+			bo_msm->size);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return (tbm_fd)fd;
+}
+
+static tbm_key
+tbm_msm_bo_export_key(tbm_backend_bo_data *bo_data, tbm_error_e *error)
+{
+	tbm_bo_msm bo_msm = (tbm_bo_msm)bo_data;
+
+	if (!bo_msm) {
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return 0;
+	}
+
+	TBM_DBG("    bo_msm:%p, gem:%d(%d), fd:%d, flags:%d, size:%d",
+			bo_msm,
+			bo_msm->gem, bo_msm->name,
+			bo_msm->dmabuf,
+			bo_msm->flags_tbm,
+			bo_msm->size);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	return (tbm_key)bo_msm->name;
+}
+
+static void
+tbm_msm_deinit(tbm_backend_bufmgr_data *bufmgr_data)
+{
+	tbm_bufmgr_msm bufmgr_msm = (tbm_bufmgr_msm)bufmgr_data;
+	tbm_bufmgr bufmgr;
+	tbm_error_e error;
+	unsigned long key;
+	void *value;
+
+	TBM_RETURN_IF_FAIL(bufmgr_msm != NULL);
+
+	bufmgr = bufmgr_msm->bufmgr;
+
+	tbm_backend_bufmgr_free_bufmgr_func(bufmgr, bufmgr_msm->bufmgr_func);
+	tbm_backend_bufmgr_free_bo_func(bufmgr, bufmgr_msm->bo_func);
+
+	if (bufmgr_msm->hashBos) {
+		while (drmHashFirst(bufmgr_msm->hashBos, &key, &value) > 0) {
+			free(value);
+			drmHashDelete(bufmgr_msm->hashBos, key);
+		}
+
+		drmHashDestroy(bufmgr_msm->hashBos);
+		bufmgr_msm->hashBos = NULL;
+	}
+
+	if (bufmgr_msm->bind_display)
+		tbm_drm_helper_wl_auth_server_deinit();
+
+	if (bufmgr_msm->device_name)
+		free(bufmgr_msm->device_name);
+
+	if (tbm_backend_bufmgr_query_display_server(bufmgr, &error))
+		tbm_drm_helper_unset_tbm_master_fd();
+	else
+		tbm_drm_helper_unset_fd();
+
+	close(bufmgr_msm->fd);
+
+	free(bufmgr_msm);
+}
+
+static tbm_backend_bufmgr_data *
+tbm_msm_init(tbm_bufmgr bufmgr, tbm_error_e *error)
+{
+	tbm_bufmgr_msm bufmgr_msm = NULL;
+	tbm_backend_bufmgr_func *bufmgr_func = NULL;
+	tbm_backend_bo_func *bo_func = NULL;
+	int set_master = 0;
+	tbm_error_e err;
+
+	if (!bufmgr) {
+		TBM_ERR("bufmgr is null.");
+		if (error)
+			*error = TBM_ERROR_INVALID_PARAMETER;
+		return NULL;
+	}
+
+	bufmgr_msm = calloc(1, sizeof(struct _tbm_bufmgr_msm));
+	if (!bufmgr_msm) {
+		TBM_ERR("fail to alloc bufmgr_msm!");
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		return NULL;
+	}
+
+	/* check the master_fd which already had opened */
+	bufmgr_msm->fd = tbm_drm_helper_get_master_fd();
+	if (bufmgr_msm->fd < 0) {
+		bufmgr_msm->fd = _tbm_msm_open_drm();
+		if (bufmgr_msm->fd < 0) {
+			TBM_ERR("fail to open drm!\n");
+			if (error)
+				*error = TBM_ERROR_INVALID_OPERATION;
+			goto fail_open_drm;
+		}
+
+		if (drmIsMaster(bufmgr_msm->fd)) {
+			tbm_drm_helper_set_tbm_master_fd(bufmgr_msm->fd);
+			set_master = 1;
+
+			bufmgr_msm->device_name = drmGetDeviceNameFromFd(bufmgr_msm->fd);
+			if (!bufmgr_msm->device_name) {
+				TBM_ERR("fail to get device name!");
+				tbm_drm_helper_unset_tbm_master_fd();
+				if (error)
+					*error = TBM_ERROR_INVALID_OPERATION;
+				goto fail_get_device_name;
+			}
+			TBM_ERR("This is Master FD(%d) from open_drm.", bufmgr_msm->fd);
+		} else {
+			/* close the fd and get the authenticated fd from the master fd */
+			close(bufmgr_msm->fd);
+			bufmgr_msm->fd = -1;
+
+			/* get the authenticated drm fd from the master fd */
+			if (!tbm_drm_helper_get_auth_info(&(bufmgr_msm->fd), &(bufmgr_msm->device_name), NULL)) {
+				TBM_ERR("fail to get auth drm info!");
+				if (error)
+					*error = TBM_ERROR_INVALID_OPERATION;
+				goto fail_get_auth_info;
+			}
+			TBM_ERR("This is Authenticated FD(%d)", bufmgr_msm->fd);
+		}
+	} else {
+		bufmgr_msm->device_name = drmGetDeviceNameFromFd(bufmgr_msm->fd);
+		if (!bufmgr_msm->device_name) {
+			TBM_ERR("fail to get device name!");
+			tbm_drm_helper_unset_tbm_master_fd();
+			if (error)
+				*error = TBM_ERROR_INVALID_OPERATION;
+			goto fail_get_device_name;
+		}
+		TBM_ERR("This is Master FD from tbm_drm_helper_get_master_fd(%d)", bufmgr_msm->fd);
+	}
+	tbm_drm_helper_set_fd(bufmgr_msm->fd);
+
+	/*Create Hash Table*/
+	bufmgr_msm->hashBos = drmHashCreate();
+
+	/* alloc and register bufmgr_funcs */
+	bufmgr_func = tbm_backend_bufmgr_alloc_bufmgr_func(bufmgr, &err);
+	if (!bufmgr_func) {
+		TBM_ERR("fail to alloc bufmgr_func! err(%d)", err);
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		goto fail_alloc_bufmgr_func;
+	}
+
+	bufmgr_func->bufmgr_get_capabilities = tbm_msm_bufmgr_get_capabilities;
+	bufmgr_func->bufmgr_bind_native_display = tbm_msm_bufmgr_bind_native_display;
+	bufmgr_func->bufmgr_get_supported_formats = tbm_msm_bufmgr_get_supported_formats;
+	bufmgr_func->bufmgr_get_plane_data = tbm_msm_bufmgr_get_plane_data;
+	bufmgr_func->bufmgr_alloc_bo = tbm_msm_bufmgr_alloc_bo;
+	bufmgr_func->bufmgr_alloc_bo_with_format = NULL;
+	bufmgr_func->bufmgr_import_fd = tbm_msm_bufmgr_import_fd;
+	bufmgr_func->bufmgr_import_key = tbm_msm_bufmgr_import_key;
+
+	err = tbm_backend_bufmgr_register_bufmgr_func(bufmgr, bufmgr_func);
+	if (err != TBM_ERROR_NONE) {
+		TBM_ERR("fail to register bufmgr_func! err(%d)\n", err);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail_register_bufmgr_func;
+	}
+	bufmgr_msm->bufmgr_func = bufmgr_func;
+
+	/* alloc and register bo_funcs */
+	bo_func = tbm_backend_bufmgr_alloc_bo_func(bufmgr, &err);
+	if (!bo_func) {
+		TBM_ERR("fail to alloc bo_func! err(%d)", err);
+		if (error)
+			*error = TBM_ERROR_OUT_OF_MEMORY;
+		goto fail_alloc_bo_func;
+	}
+
+	bo_func->bo_free = tbm_msm_bo_free;
+	bo_func->bo_get_size = tbm_msm_bo_get_size;
+	bo_func->bo_get_memory_types = tbm_msm_bo_get_memory_type;
+	bo_func->bo_get_handle = tbm_msm_bo_get_handle;
+	bo_func->bo_map = tbm_msm_bo_map;
+	bo_func->bo_unmap = tbm_msm_bo_unmap;
+	bo_func->bo_lock = tbm_msm_bo_lock;
+	bo_func->bo_unlock = tbm_msm_bo_unlock;
+	bo_func->bo_export_fd = tbm_msm_bo_export_fd;
+	bo_func->bo_export_key = tbm_msm_bo_export_key;
+
+	err = tbm_backend_bufmgr_register_bo_func(bufmgr, bo_func);
+	if (err != TBM_ERROR_NONE) {
+		TBM_ERR("fail to register bo_func! err(%d)", err);
+		if (error)
+			*error = TBM_ERROR_INVALID_OPERATION;
+		goto fail_register_bo_func;
+	}
+	bufmgr_msm->bo_func = bo_func;
+
+	TBM_DBG("drm_fd:%d", bufmgr_msm->fd);
+
+	if (error)
+		*error = TBM_ERROR_NONE;
+
+	bufmgr_msm->bufmgr = bufmgr;
+
+	return (tbm_backend_bufmgr_data *)bufmgr_msm;
+
+fail_register_bo_func:
+	tbm_backend_bufmgr_free_bo_func(bufmgr, bo_func);
+fail_alloc_bo_func:
+fail_register_bufmgr_func:
+	tbm_backend_bufmgr_free_bufmgr_func(bufmgr, bufmgr_func);
+fail_alloc_bufmgr_func:
+	if (bufmgr_msm->hashBos)
+		drmHashDestroy(bufmgr_msm->hashBos);
+	if (bufmgr_msm->device_name)
+		free(bufmgr_msm->device_name);
+fail_get_device_name:
+	if (set_master)
+		tbm_drm_helper_unset_tbm_master_fd();
+	tbm_drm_helper_unset_fd();
+	if (bufmgr_msm->fd >= 0)
+		close(bufmgr_msm->fd);
+fail_get_auth_info:
+fail_open_drm:
+	free(bufmgr_msm);
+	return NULL;
+}
+
+tbm_backend_module tbm_backend_module_data = {
+	"msm",
+	"Samsung",
+	TBM_BACKEND_ABI_VERSION_3_0,
+	tbm_msm_init,
+	tbm_msm_deinit
+};
+