Add initial code 53/264153/2
authorChangyeon Lee <cyeon.lee@samsung.com>
Tue, 14 Sep 2021 02:34:08 +0000 (11:34 +0900)
committerChangyeon Lee <cyeon.lee@samsung.com>
Tue, 14 Sep 2021 02:38:04 +0000 (11:38 +0900)
Change-Id: Icfc996f412248cf07cbe85bf8cec40ebd7fd9d69

14 files changed:
AUTHORS [new file with mode: 0644]
COPYING [new file with mode: 0644]
ChangeLog [new file with mode: 0644]
Makefile.am [new file with mode: 0644]
NEWS [new file with mode: 0644]
README [new file with mode: 0644]
autogen.sh [new file with mode: 0644]
configure.ac [new file with mode: 0644]
packaging/libhal-backend-tbm-meson.manifest [new file with mode: 0644]
packaging/libtbm-meson.spec [new file with mode: 0644]
src/Makefile.am [new file with mode: 0644]
src/tbm_backend_log.c [new file with mode: 0644]
src/tbm_backend_log.h [new file with mode: 0644]
src/tbm_backend_meson.c [new file with mode: 0644]

diff --git a/AUTHORS b/AUTHORS
new file mode 100644 (file)
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 (file)
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 (file)
index 0000000..e69de29
diff --git a/Makefile.am b/Makefile.am
new file mode 100644 (file)
index 0000000..af437a6
--- /dev/null
@@ -0,0 +1 @@
+SUBDIRS = src
diff --git a/NEWS b/NEWS
new file mode 100644 (file)
index 0000000..e69de29
diff --git a/README b/README
new file mode 100644 (file)
index 0000000..e69de29
diff --git a/autogen.sh b/autogen.sh
new file mode 100644 (file)
index 0000000..904cd67
--- /dev/null
@@ -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 (file)
index 0000000..28cdd9f
--- /dev/null
@@ -0,0 +1,74 @@
+#
+#  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-meson, 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(HAL_API_COMMON, hal-api-common)
+PKG_CHECK_MODULES(HAL_API_TBM, hal-api-tbm)
+PKG_CHECK_MODULES(DLOG, dlog)
+PKG_CHECK_MODULES(LIBUDEV, libudev)
+
+# set the data dir for the tdm config
+DEFAULT_HAL_LIBDIR="/hal/lib"
+AC_ARG_WITH(hal-libdir, AS_HELP_STRING([--with-hal-libdir=PATH], [hal backend library path]),
+                [ HAL_LIBDIR="$withval" ],
+                [ HAL_LIBDIR="${DEFAULT_HAL_LIBDIR}" ])
+AC_DEFINE_UNQUOTED(HAL_LIBDIR, "${HAL_LIBDIR}", [Directory for hal backend library path])
+AC_SUBST(HAL_LIBDIR)
+
+bufmgr_dir=${libdir#*/}
+AC_SUBST(bufmgr_dir)
+
+# for libhal-backend-tbm-meson
+LIBHAL_BACKEND_TBM_MESON_CFLAGS="$HAL_API_COMMON_CFLAGS $HAL_API_TBM_CFLAGS $LIBDRM_CFLAGS $LIBDRM_MESON_CFLAGS $DLOG_CFLAGS $LIBUDEV_CFLAGS"
+LIBHAL_BACKEND_TBM_MESON_LIBS="$HAL_API_COMMON_LIBS $HAL_API_TBM_LIBS $LIBDRM_LIBS $LIBDRM_MESON_LIBS $DLOG_LIBS $LIBUDEV_LIBS"
+AC_SUBST(LIBHAL_BACKEND_TBM_MESON_CFLAGS)
+AC_SUBST(LIBHAL_BACKEND_TBM_MESON_LIBS)
+
+AC_OUTPUT([
+       Makefile
+       src/Makefile])
+
+echo ""
+echo "CFLAGS  : $CFLAGS"
+echo "LDFLAGS : $LDFLAGS"
+echo "bufmgr_dir : $bufmgr_dir"
+echo "LIBHAL_BACKEND_TBM_MESON_CFLAGS : $LIBHAL_BACKEND_TBM_MESON_CFLAGS"
+echo "LIBHAL_BACKEND_TBM_MESON_LIBS   : $LIBHAL_BACKEND_TBM_MESON_LIBS"
+echo "hal-libdir : $HAL_LIBDIR"
+echo ""
diff --git a/packaging/libhal-backend-tbm-meson.manifest b/packaging/libhal-backend-tbm-meson.manifest
new file mode 100644 (file)
index 0000000..75b0fa5
--- /dev/null
@@ -0,0 +1,5 @@
+<manifest>
+    <request>
+        <domain name="_"/>
+    </request>
+</manifest>
diff --git a/packaging/libtbm-meson.spec b/packaging/libtbm-meson.spec
new file mode 100644 (file)
index 0000000..bd1bec5
--- /dev/null
@@ -0,0 +1,60 @@
+Name:           libtbm-meson
+Version:        1.0.0
+Release:        1
+License:        MIT
+Summary:        Tizen Buffer Manager - meson backend
+Group:          System/Libraries
+Source0:        %{name}-%{version}.tar.gz
+Source1001:        libhal-backend-tbm-meson.manifest
+
+BuildRequires:  pkgconfig(libdrm)
+BuildRequires:  pkgconfig(libtbm)
+BuildRequires:  pkgconfig(hal-api-common)
+BuildRequires:  pkgconfig(hal-api-tbm)
+BuildRequires:  pkgconfig(dlog)
+BuildRequires:  pkgconfig(libudev)
+BuildRequires:  kernel-headers-amlogic
+BuildConflicts: linux-glibc-devel
+ExclusiveArch:  %{arm} aarch64
+
+%description
+descriptionion: Tizen Buffer manager backend module for meson
+
+%package -n hal-backend-tbm-meson
+Summary:       hal-backend-tbm module for meson
+Group:         System/Libraries
+Requires:      hal-api-tbm
+Requires:      hal-api-common
+
+%description -n hal-backend-tbm-meson
+descriptionion: hal tbm backend module for meson
+
+%prep
+%setup -q
+cp %{SOURCE1001} .
+
+%build
+
+%reconfigure --prefix=%{_prefix} --libdir=%{_libdir}/bufmgr \
+                       --with-hal-libdir=%{_hal_libdir} \
+                       CFLAGS="${CFLAGS} -Wall -Werror" LDFLAGS="${LDFLAGS} -Wl,--hash-style=both -Wl,--as-needed"
+
+make %{?_smp_mflags}
+
+%install
+rm -rf %{buildroot}
+
+%make_install
+
+%post
+if [ -f %{_hal_libdir}/libhal-backend-tbm.so ]; then
+    rm -rf %{_hal_libdir}/libhal-backend-tbm.so
+fi
+ln -s libhal-backend-tbm-meson.so %{_hal_libdir}/libhal-backend-tbm.so
+
+%postun -n hal-backend-tbm-meson -p /sbin/ldconfig
+
+%files
+%manifest libhal-backend-tbm-meson.manifest
+%license COPYING
+%{_hal_libdir}/libhal-backend-*.so*
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644 (file)
index 0000000..769f670
--- /dev/null
@@ -0,0 +1,12 @@
+AM_CFLAGS = \
+       @LIBHAL_BACKEND_TBM_MESON_CFLAGS@ \
+       -I$(top_srcdir) \
+       -I$(top_srcdir)/src
+
+libhal_backend_tbm_meson_la_LTLIBRARIES = libhal-backend-tbm-meson.la
+libhal_backend_tbm_meson_ladir = @HAL_LIBDIR@
+libhal_backend_tbm_meson_la_LIBADD = @LIBHAL_BACKEND_TBM_MESON_LIBS@
+
+libhal_backend_tbm_meson_la_SOURCES = \
+       tbm_backend_log.c \
+       tbm_backend_meson.c
diff --git a/src/tbm_backend_log.c b/src/tbm_backend_log.c
new file mode 100644 (file)
index 0000000..92b4479
--- /dev/null
@@ -0,0 +1,74 @@
+/**************************************************************************
+
+libtbm_meson
+
+Copyright 2021 Samsung Electronics co., Ltd. All Rights Reserved.
+
+Contact: SooChan Lim <sc1.lim@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.
+
+**************************************************************************/
+
+#include "tbm_backend_log.h"
+
+#undef LOG_TAG
+#define LOG_TAG "TBM_BACKEND"
+
+unsigned int tbm_log_debug_level = TBM_BACKEND_LOG_LEVEL_INFO;
+
+static void
+_tbm_backend_log_dlog_print(int level, const char *fmt, va_list arg)
+{
+       log_priority dlog_prio;
+
+       switch (level) {
+       case TBM_BACKEND_LOG_LEVEL_ERR:
+               dlog_prio = DLOG_ERROR;
+               break;
+       case TBM_BACKEND_LOG_LEVEL_WRN:
+               dlog_prio = DLOG_WARN;
+               break;
+       case TBM_BACKEND_LOG_LEVEL_INFO:
+               dlog_prio = DLOG_INFO;
+               break;
+       case TBM_BACKEND_LOG_LEVEL_DBG:
+               dlog_prio = DLOG_DEBUG;
+               break;
+       default:
+               return;
+       }
+       __dlog_vprint(LOG_ID_SYSTEM, dlog_prio, LOG_TAG, fmt, arg);
+}
+
+void
+tbm_backend_log_print(int level, const char *fmt, ...)
+{
+       va_list arg;
+
+       if (level > tbm_log_debug_level)
+               return;
+
+       va_start(arg, fmt);
+       _tbm_backend_log_dlog_print(level, fmt, arg);
+       va_end(arg);
+}
+
diff --git a/src/tbm_backend_log.h b/src/tbm_backend_log.h
new file mode 100644 (file)
index 0000000..ff60777
--- /dev/null
@@ -0,0 +1,105 @@
+/**************************************************************************
+
+libtbm_vc4
+
+Copyright 2021 Samsung Electronics co., Ltd. All Rights Reserved.
+
+Contact: SooChan Lim <sc1.lim@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.
+
+**************************************************************************/
+
+#ifndef __TBM_BACKEND_LOG_H__
+#define __TBM_BACKEND_LOG_H__
+
+#include <sys/syscall.h>
+#include <time.h>
+#include <dlog.h>
+
+enum {
+       TBM_BACKEND_LOG_LEVEL_NONE,
+       TBM_BACKEND_LOG_LEVEL_ERR,
+       TBM_BACKEND_LOG_LEVEL_WRN,
+       TBM_BACKEND_LOG_LEVEL_INFO,
+       TBM_BACKEND_LOG_LEVEL_DBG,
+};
+
+
+/* log level */
+void tbm_backend_log_print(int level, const char *fmt, ...);
+
+#define TBM_BACKEND_DBG(fmt, args...) \
+       do { \
+               struct timespec ts; \
+               clock_gettime(CLOCK_MONOTONIC, &ts); \
+               tbm_backend_log_print(TBM_BACKEND_LOG_LEVEL_DBG, "[%5d.%06d][%d][%s %d]"fmt, \
+                                         (int)ts.tv_sec, (int)ts.tv_nsec / 1000, \
+                                         (int)syscall(SYS_gettid), __FUNCTION__, __LINE__, ##args);  \
+       } while (0)
+
+#define TBM_BACKEND_INFO(fmt, args...) \
+       do { \
+               struct timespec ts; \
+               clock_gettime(CLOCK_MONOTONIC, &ts); \
+               tbm_backend_log_print(TBM_BACKEND_LOG_LEVEL_INFO, "[%5d.%06d][%d][%s %d]"fmt, \
+                                         (int)ts.tv_sec, (int)ts.tv_nsec / 1000, \
+                                         (int)syscall(SYS_gettid), __FUNCTION__, __LINE__, ##args);  \
+       } while (0)
+
+#define TBM_BACKEND_WRN(fmt, args...) \
+       do { \
+               struct timespec ts; \
+               clock_gettime(CLOCK_MONOTONIC, &ts); \
+               tbm_backend_log_print(TBM_BACKEND_LOG_LEVEL_WRN, "[%5d.%06d][%d][%s %d]"fmt, \
+                                         (int)ts.tv_sec, (int)ts.tv_nsec / 1000, \
+                                         (int)syscall(SYS_gettid), __FUNCTION__, __LINE__, ##args);  \
+       } while (0)
+
+#define TBM_BACKEND_ERR(fmt, args...) \
+       do { \
+               struct timespec ts; \
+               clock_gettime(CLOCK_MONOTONIC, &ts); \
+               tbm_backend_log_print(TBM_BACKEND_LOG_LEVEL_ERR, "[%5d.%06d][%d][%s %d]"fmt, \
+                                         (int)ts.tv_sec, (int)ts.tv_nsec / 1000, \
+                                         (int)syscall(SYS_gettid), __FUNCTION__, __LINE__, ##args);  \
+       } while (0)
+
+#define TBM_BACKEND_RETURN_IF_FAIL(cond) {\
+       if (!(cond)) {\
+               TBM_BACKEND_ERR("'%s' failed.\n", #cond);\
+               return;\
+       } \
+}
+#define TBM_BACKEND_RETURN_VAL_IF_FAIL(cond, val) {\
+       if (!(cond)) {\
+               TBM_BACKEND_ERR("'%s' failed.\n", #cond);\
+               return val;\
+       } \
+}
+#define TBM_BACKEND_GOTO_VAL_IF_FAIL(cond, val) {\
+       if (!(cond)) {\
+               TBM_BACKEND_ERR("'%s' failed.\n", #cond);\
+               goto val;\
+       } \
+}
+
+#endif /* __TBM_BACKEND_LOG_H__ */
\ No newline at end of file
diff --git a/src/tbm_backend_meson.c b/src/tbm_backend_meson.c
new file mode 100644 (file)
index 0000000..62547b8
--- /dev/null
@@ -0,0 +1,1439 @@
+/**************************************************************************
+
+libtbm_meson
+
+Copyright 2017 Samsung Electronics co., Ltd. All Rights Reserved.
+
+Contact: SooChan Lim <sc1.lim@samsung.com>, Sangjin Lee <lsj119@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 <hal-common.h>
+#include <hal-tbm-types.h>
+#include <hal-tbm-interface.h>
+#include <drm/meson_drm.h>
+#include "tbm_backend_log.h"
+
+#define MESON_DRM_NAME "meson"
+
+#define TBM_COLOR_FORMAT_COUNT 4
+#define SIZE_ALIGN(value, base) (((value) + ((base) - 1)) & ~((base) - 1))
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+
+#define TBM_SURFACE_ALIGNMENT_PLANE (16)
+#define TBM_SURFACE_ALIGNMENT_PITCH_RGB (16)
+#define TBM_SURFACE_ALIGNMENT_PITCH_YUV (16)
+#define TBM_SURFACE_ALIGNMENT_HEIGHT_YUV (16)
+
+typedef struct _tbm_meson_bufmgr tbm_meson_bufmgr;
+typedef struct _tbm_meson_bo tbm_meson_bo;
+
+/* tbm buffor object for meson */
+struct _tbm_meson_bo {
+       int bufmgr_fd;
+       unsigned int name;
+       unsigned int gem;
+       unsigned int dmabuf;
+       void *pBase;
+       unsigned int size;
+       unsigned int flags_tbm;
+       unsigned int flags_meson;
+       pthread_mutex_t mutex;
+       int device;
+       tbm_meson_bufmgr *bufmgr_data;
+};
+
+/* tbm bufmgr private for meson */
+struct _tbm_meson_bufmgr {
+       int fd;
+       void *hash_bos;
+};
+
+static char *STR_DEVICE[] = {
+       "DEF",
+       "CPU",
+       "2D",
+       "3D",
+       "MM"
+};
+
+static char *STR_OPT[] = {
+       "NONE",
+       "RD",
+       "WR",
+       "RDWR"
+};
+
+static uint32_t tbm_meson_color_format_list[TBM_COLOR_FORMAT_COUNT] = {
+                                                                               HAL_TBM_FORMAT_ARGB8888,
+                                                                               HAL_TBM_FORMAT_XRGB8888,
+                                                                               HAL_TBM_FORMAT_NV12,
+                                                                               HAL_TBM_FORMAT_YUV420
+                                                                       };
+
+static int
+_tbm_meson_open_drm()
+{
+       int fd = -1;
+
+       fd = drmOpen(MESON_DRM_NAME, NULL);
+       if (fd < 0) {
+               TBM_BACKEND_ERR("fail to open drm.(%s)", MESON_DRM_NAME);
+       }
+
+       if (fd < 0) {
+               struct udev *udev = NULL;
+               struct udev_enumerate *e = NULL;
+               struct udev_list_entry *entry = NULL;
+               struct udev_device *device = NULL, *drm_device = NULL, *device_parent = NULL;
+               const char *filepath;
+               struct stat s;
+               int ret;
+
+               TBM_BACKEND_DBG("search drm-device by udev");
+
+               udev = udev_new();
+               if (!udev) {
+                       TBM_BACKEND_ERR("udev_new() failed.");
+                       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);
+
+               udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
+                       device = udev_device_new_from_syspath(udev_enumerate_get_udev(e),
+                                                             udev_list_entry_get_name(entry));
+                       device_parent = udev_device_get_parent(device);
+                       /* Not need unref device_parent. device_parent and device have same refcnt */
+                       if (device_parent) {
+                               if (strcmp(udev_device_get_sysname(device_parent), "meson-drm") == 0) {
+                                       drm_device = device;
+                                       TBM_BACKEND_DBG("Found render device: '%s' (%s)",
+                                           udev_device_get_syspath(drm_device),
+                                           udev_device_get_sysname(device_parent));
+                                       break;
+                               }
+                       }
+                       udev_device_unref(device);
+               }
+
+               udev_enumerate_unref(e);
+
+               /* Get device file path. */
+               filepath = udev_device_get_devnode(drm_device);
+               if (!filepath) {
+                       TBM_BACKEND_ERR("udev_device_get_devnode() failed.");
+                       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_BACKEND_ERR("open(%s, O_RDWR | O_CLOEXEC) failed.");
+                       udev_device_unref(drm_device);
+                       udev_unref(udev);
+                       return -1;
+               }
+
+               ret = fstat(fd, &s);
+               if (ret) {
+                       TBM_BACKEND_ERR("fstat() failed %s.");
+                       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_name(int fd, unsigned int gem)
+{
+       struct drm_gem_flink arg = {0,};
+
+       arg.handle = gem;
+       if (drmIoctl(fd, DRM_IOCTL_GEM_FLINK, &arg)) {
+               TBM_BACKEND_ERR("fail to DRM_IOCTL_GEM_FLINK gem:%d", gem);
+               return 0;
+       }
+
+       return (unsigned int)arg.name;
+}
+
+static unsigned int
+_get_meson_flag_from_tbm(unsigned int ftbm)
+{
+       unsigned int flags = MESON_USE_NONE;
+
+       if (ftbm & HAL_TBM_BO_SCANOUT) {
+               flags |= MESON_USE_SCANOUT;
+       } else {
+               flags |= MESON_USE_LINEAR;
+       }
+
+       return flags;
+}
+
+static unsigned int
+_get_tbm_flag_from_meson(unsigned int fmeson)
+{
+       unsigned int flags = 0;
+
+       if (fmeson & MESON_USE_SCANOUT)
+               flags |= HAL_TBM_BO_SCANOUT;
+       else
+               flags |= HAL_TBM_BO_DEFAULT;
+
+       return flags;
+}
+
+static hal_tbm_bo_handle
+_meson_bo_handle(tbm_meson_bo *bo_data, int device)
+{
+       hal_tbm_bo_handle bo_handle;
+
+       memset(&bo_handle, 0x0, sizeof(uint64_t));
+
+       switch (device) {
+       case HAL_TBM_DEVICE_DEFAULT:
+       case HAL_TBM_DEVICE_2D:
+               bo_handle.u32 = (uint32_t)bo_data->gem;
+               break;
+       case HAL_TBM_DEVICE_CPU:
+               if (!bo_data->pBase) {
+                       struct drm_mode_map_dumb arg = {0,};
+                       void *map = NULL;
+
+                       arg.handle = bo_data->gem;
+                       if (drmIoctl(bo_data->bufmgr_fd, DRM_IOCTL_MODE_MAP_DUMB, &arg)) {
+                               TBM_BACKEND_ERR("Cannot map_meson gem:%d", bo_data->gem);
+                               return (hal_tbm_bo_handle) NULL;
+                       }
+
+                       map = mmap(NULL, bo_data->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+                                  bo_data->bufmgr_fd, arg.offset);
+                       if (map == MAP_FAILED) {
+                               TBM_BACKEND_ERR("Cannot usrptr gem:%d", bo_data->gem);
+                               return (hal_tbm_bo_handle) NULL;
+                       }
+                       bo_data->pBase = map;
+               }
+               bo_handle.ptr = (void *)bo_data->pBase;
+               break;
+       case HAL_TBM_DEVICE_3D:
+       case HAL_TBM_DEVICE_MM:
+               bo_handle.u32 = (uint32_t)bo_data->dmabuf;
+               break;
+       default:
+               TBM_BACKEND_ERR("Not supported device:%d", device);
+               bo_handle.ptr = (void *) NULL;
+               break;
+       }
+
+       return bo_handle;
+}
+
+static int
+_meson_cache_flush(tbm_meson_bo *bo_data)
+{
+       struct drm_meson_gem_sync cache_op = { 0 };
+       int ret;
+
+       cache_op.handle = bo_data->gem;
+       ret = drmCommandWriteRead(bo_data->bufmgr_fd, DRM_MESON_GEM_SYNC,
+                                                       &cache_op, sizeof(cache_op));
+       if (ret) {
+               TBM_BACKEND_ERR("fail to flush the cache ret:%d", ret);
+               return 0;
+       }
+
+       return 1;
+}
+
+static hal_tbm_bufmgr_capability
+tbm_meson_bufmgr_get_capabilities(hal_tbm_bufmgr *bufmgr, hal_tbm_error *error)
+{
+       hal_tbm_bufmgr_capability capabilities = HAL_TBM_BUFMGR_CAPABILITY_NONE;
+
+       capabilities = HAL_TBM_BUFMGR_CAPABILITY_SHARE_KEY|HAL_TBM_BUFMGR_CAPABILITY_SHARE_FD;
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return capabilities;
+}
+
+static hal_tbm_error
+tbm_meson_bufmgr_get_supported_formats(hal_tbm_bufmgr *bufmgr,
+                                                       uint32_t **formats, uint32_t *num)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *)bufmgr;
+       uint32_t *color_formats;
+
+       TBM_BACKEND_RETURN_VAL_IF_FAIL(bufmgr_data != NULL, HAL_TBM_ERROR_INVALID_PARAMETER);
+
+       color_formats = (uint32_t *)calloc(1, sizeof(uint32_t) * TBM_COLOR_FORMAT_COUNT);
+       if (color_formats == NULL)
+               return HAL_TBM_ERROR_OUT_OF_MEMORY;
+
+       memcpy(color_formats, tbm_meson_color_format_list, sizeof(uint32_t)*TBM_COLOR_FORMAT_COUNT);
+
+       *formats = color_formats;
+       *num = TBM_COLOR_FORMAT_COUNT;
+
+       TBM_BACKEND_DBG("supported format count = %d", *num);
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static hal_tbm_error
+tbm_meson_bufmgr_get_plane_data(hal_tbm_bufmgr *bufmgr,
+                                                       hal_tbm_format format, int plane_idx, int width,
+                                                       int height, uint32_t *size, uint32_t *offset,
+                                                       uint32_t *pitch, int *bo_idx)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *)bufmgr;
+       int bpp;
+       int _offset = 0;
+       int _pitch = 0;
+       int _size = 0;
+       int _bo_idx = 0;
+       int _align_height = 0;
+
+       TBM_BACKEND_RETURN_VAL_IF_FAIL(bufmgr_data != NULL, HAL_TBM_ERROR_INVALID_PARAMETER);
+
+       switch (format) {
+               /* 16 bpp RGB */
+       case HAL_TBM_FORMAT_XRGB4444:
+       case HAL_TBM_FORMAT_XBGR4444:
+       case HAL_TBM_FORMAT_RGBX4444:
+       case HAL_TBM_FORMAT_BGRX4444:
+       case HAL_TBM_FORMAT_ARGB4444:
+       case HAL_TBM_FORMAT_ABGR4444:
+       case HAL_TBM_FORMAT_RGBA4444:
+       case HAL_TBM_FORMAT_BGRA4444:
+       case HAL_TBM_FORMAT_XRGB1555:
+       case HAL_TBM_FORMAT_XBGR1555:
+       case HAL_TBM_FORMAT_RGBX5551:
+       case HAL_TBM_FORMAT_BGRX5551:
+       case HAL_TBM_FORMAT_ARGB1555:
+       case HAL_TBM_FORMAT_ABGR1555:
+       case HAL_TBM_FORMAT_RGBA5551:
+       case HAL_TBM_FORMAT_BGRA5551:
+       case HAL_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 HAL_TBM_FORMAT_RGB888:
+       case HAL_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 HAL_TBM_FORMAT_XRGB8888:
+       case HAL_TBM_FORMAT_XBGR8888:
+       case HAL_TBM_FORMAT_RGBX8888:
+       case HAL_TBM_FORMAT_BGRX8888:
+       case HAL_TBM_FORMAT_ARGB8888:
+       case HAL_TBM_FORMAT_ABGR8888:
+       case HAL_TBM_FORMAT_RGBA8888:
+       case HAL_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 HAL_TBM_FORMAT_YUYV:
+       case HAL_TBM_FORMAT_YVYU:
+       case HAL_TBM_FORMAT_UYVY:
+       case HAL_TBM_FORMAT_VYUY:
+       case HAL_TBM_FORMAT_AYUV:
+               bpp = 32;
+               _offset = 0;
+               _pitch = SIZE_ALIGN((width * bpp) >> 3, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+               _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+               _size = SIZE_ALIGN(_pitch * _align_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 HAL_TBM_FORMAT_NV12:
+       case HAL_TBM_FORMAT_NV21:
+               bpp = 12;
+               /*if (plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height / 2, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+               }
+               break;
+       case HAL_TBM_FORMAT_NV16:
+       case HAL_TBM_FORMAT_NV61:
+               bpp = 16;
+               /*if(plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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 HAL_TBM_FORMAT_YUV410:
+       case HAL_TBM_FORMAT_YVU410:
+               bpp = 9;
+               /*if(plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+                       if (plane_idx == 0)
+                               break;
+               }
+               /*else if(plane_idx == 1)*/
+               {
+                       _offset += _size;
+                       _pitch = SIZE_ALIGN(width / 4, TBM_SURFACE_ALIGNMENT_PITCH_YUV / 4);
+                       _align_height = SIZE_ALIGN(height / 4, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+                       if (plane_idx == 1)
+                               break;
+               }
+               /*else if (plane_idx == 2)*/
+               {
+                       _offset += _size;
+                       _pitch = SIZE_ALIGN(width / 4, TBM_SURFACE_ALIGNMENT_PITCH_YUV / 4);
+                       _align_height = SIZE_ALIGN(height / 4, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+               }
+               break;
+       case HAL_TBM_FORMAT_YUV411:
+       case HAL_TBM_FORMAT_YVU411:
+       case HAL_TBM_FORMAT_YUV420:
+       case HAL_TBM_FORMAT_YVU420:
+               bpp = 12;
+               /*if(plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height / 2, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV / 2);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height / 2, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV / 2);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+               }
+               break;
+       case HAL_TBM_FORMAT_YUV422:
+       case HAL_TBM_FORMAT_YVU422:
+               bpp = 16;
+               /*if(plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+               }
+               break;
+       case HAL_TBM_FORMAT_YUV444:
+       case HAL_TBM_FORMAT_YVU444:
+               bpp = 24;
+               /*if(plane_idx == 0)*/
+               {
+                       _offset = 0;
+                       _pitch = SIZE_ALIGN(width, TBM_SURFACE_ALIGNMENT_PITCH_YUV);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_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);
+                       _align_height = SIZE_ALIGN(height, TBM_SURFACE_ALIGNMENT_HEIGHT_YUV);
+                       _size = SIZE_ALIGN(_pitch * _align_height, TBM_SURFACE_ALIGNMENT_PLANE);
+                       _bo_idx = 0;
+               }
+               break;
+       default:
+               bpp = 0;
+               break;
+       }
+
+       *size = _size;
+       *offset = _offset;
+       *pitch = _pitch;
+       *bo_idx = _bo_idx;
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static hal_tbm_bo *
+tbm_meson_bufmgr_alloc_bo(hal_tbm_bufmgr *bufmgr, unsigned int size,
+                                       hal_tbm_bo_memory_type flags, hal_tbm_error *error)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *)bufmgr;
+       tbm_meson_bo *bo_data = NULL;
+       struct drm_mode_create_dumb create_arg = {0, };
+       struct drm_prime_handle prime_arg = {0, };
+       struct drm_gem_close close_arg = {0, };
+
+       if (bufmgr_data == NULL) {
+               TBM_BACKEND_ERR("bufmgr is null");
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       bo_data = calloc(1, sizeof(struct _tbm_meson_bo));
+       if (!bo_data) {
+               TBM_BACKEND_ERR("fail to allocate the bo_data private");
+               if (error)
+                       *error = HAL_TBM_ERROR_OUT_OF_MEMORY;
+               return NULL;
+       }
+
+       //as we know only size for new bo set height=1 and bpp=8 and in this case
+       //width will by equal to size in bytes;
+       create_arg.height = 1;
+       create_arg.bpp = 8;
+       create_arg.width = size;
+       create_arg.flags = _get_meson_flag_from_tbm(flags);
+       if (drmIoctl(bufmgr_data->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg)) {
+               TBM_BACKEND_ERR("Cannot create bo_data(flag:%x, size:%d)",
+                                               create_arg.flags, (unsigned int)create_arg.size);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->bufmgr_data = bufmgr_data;
+       bo_data->bufmgr_fd = bufmgr_data->fd;
+       bo_data->gem = (unsigned int)create_arg.handle;
+       bo_data->size = size;
+       bo_data->flags_tbm = flags;
+       bo_data->flags_meson = create_arg.flags;
+
+       bo_data->name = _get_name(bo_data->bufmgr_fd, bo_data->gem);
+       if (!bo_data->name) {
+               TBM_BACKEND_ERR("Cannot get name from handle:%d(%m)", bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       prime_arg.handle = bo_data->gem;
+       if (drmIoctl(bo_data->bufmgr_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &prime_arg)) {
+               TBM_BACKEND_ERR("Cannot dmabuf:%d", bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->dmabuf = prime_arg.fd;
+
+       pthread_mutex_init(&bo_data->mutex, NULL);
+
+       /* add bo_data to hash */
+       if (drmHashInsert(bufmgr_data->hash_bos, bo_data->name, (void *)bo_data) < 0)
+               TBM_BACKEND_ERR("Cannot insert bo_data to Hash(%d)", bo_data->name);
+
+       TBM_BACKEND_DBG("     bo_data:%p, gem:%d(%d), flags:%d, size:%d",
+               bo_data,
+               bo_data->gem,
+               bo_data->name,
+           bo_data->flags_tbm,
+               bo_data->size);
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return (hal_tbm_bo *)bo_data;
+
+fail:
+       if (bo_data) {
+               if (bo_data->gem) {
+                       close_arg.handle = bo_data->gem;
+                       drmIoctl(bufmgr_data->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+               }
+               free(bo_data);
+       }
+
+       return NULL;
+}
+
+static hal_tbm_bo *
+tbm_meson_bufmgr_import_fd(hal_tbm_bufmgr *bufmgr, hal_tbm_fd key, hal_tbm_error *error)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *)bufmgr;
+       tbm_meson_bo *bo_data = NULL;
+       unsigned int gem = 0;
+       unsigned int name;
+       struct drm_prime_handle prime_arg = {0, };
+       struct drm_meson_gem_info info_arg = {0, };
+       struct drm_gem_close close_arg = {0, };
+       int ret;
+
+       if (bufmgr_data == NULL) {
+               TBM_BACKEND_ERR("bufmgr is null");
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       prime_arg.fd = key;
+       prime_arg.flags = 0;
+       if (drmIoctl(bufmgr_data->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &prime_arg)) {
+               TBM_BACKEND_ERR("Cannot get gem handle from fd:%d (%m)", prime_arg.fd);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return NULL;
+       }
+
+       name = _get_name(bufmgr_data->fd, prime_arg.handle);
+       if (!name) {
+               TBM_BACKEND_ERR("Cannot get name from handle:%d, fd:%d (%m)", prime_arg.handle, key);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return NULL;
+       }
+
+       ret = drmHashLookup(bufmgr_data->hash_bos, name, (void **)&bo_data);
+       if (ret == 0) {
+               if (prime_arg.handle == bo_data->gem) {
+                       if (error)
+                               *error = HAL_TBM_ERROR_NONE;
+                       return bo_data;
+               }
+       }
+
+       bo_data = calloc(1, sizeof(struct _tbm_meson_bo));
+       if (!bo_data) {
+               TBM_BACKEND_ERR("bo_data:%p fail to allocate the bo_data", bo_data);
+               if (error)
+                       *error = HAL_TBM_ERROR_OUT_OF_MEMORY;
+               return NULL;
+       }
+
+       bo_data->bufmgr_data = bufmgr_data;
+       bo_data->bufmgr_fd = bufmgr_data->fd;
+       bo_data->gem = prime_arg.handle;
+
+       info_arg.handle = bo_data->gem;
+       if (drmCommandWriteRead(bufmgr_data->fd, DRM_MESON_GEM_GET, &info_arg, sizeof(info_arg))) {
+               TBM_BACKEND_ERR("Cannot get gem info from gem:%d, fd:%d (%m)", gem, key);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->size = info_arg.size;
+       bo_data->flags_tbm = _get_tbm_flag_from_meson(info_arg.flags);
+       bo_data->flags_meson = info_arg.flags;
+
+       bo_data->name = _get_name(bo_data->bufmgr_fd, bo_data->gem);
+       if (!bo_data->name) {
+               TBM_BACKEND_ERR("Cannot get name from handle:%d (%m)", bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       prime_arg.handle = bo_data->gem;
+       if (drmIoctl(bufmgr_data->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &prime_arg)) {
+               TBM_BACKEND_ERR("fail to DRM_IOCTL_PRIME_HANDLE_TO_FD handle:%d (%m)", prime_arg.handle);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->dmabuf = prime_arg.fd;
+
+       /* add bo_data to hash */
+       if (drmHashInsert(bufmgr_data->hash_bos, bo_data->name, (void *)bo_data) < 0)
+               TBM_BACKEND_ERR("bo_data:%p Cannot insert bo_data to Hash(%d) from gem:%d, fd:%d",
+                              bo_data, bo_data->name, gem, key);
+
+       TBM_BACKEND_DBG(" bo_data:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           key,
+           bo_data->flags_tbm,
+           bo_data->size);
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return (hal_tbm_bo *)bo_data;
+
+fail:
+       if (bo_data) {
+               if (bo_data->gem) {
+                       close_arg.handle = bo_data->gem;
+                       drmIoctl(bufmgr_data->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+               }
+               free(bo_data);
+       }
+
+       return NULL;
+}
+
+static hal_tbm_bo *
+tbm_meson_bufmgr_import_key(hal_tbm_bufmgr *bufmgr, hal_tbm_key key, hal_tbm_error *error)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *)bufmgr;
+       tbm_meson_bo *bo_data = NULL;
+       struct drm_gem_open open_arg = {0, };
+       struct drm_meson_gem_info info_arg = {0, };
+       struct drm_gem_close close_arg = {0, };
+       struct drm_prime_handle prime_arg = {0, };
+       int ret;
+
+       if (bufmgr_data == NULL) {
+               TBM_BACKEND_ERR("bufmgr is null");
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       ret = drmHashLookup(bufmgr_data->hash_bos, key, (void **)&bo_data);
+       if (ret == 0) {
+               if (error)
+                       *error = HAL_TBM_ERROR_NONE;
+               return (hal_tbm_bo *)bo_data;
+       }
+
+       open_arg.name = key;
+       if (drmIoctl(bufmgr_data->fd, DRM_IOCTL_GEM_OPEN, &open_arg)) {
+               TBM_BACKEND_ERR("Cannot open gem name:%d", key);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return NULL;
+       }
+
+       bo_data = calloc(1, sizeof(struct _tbm_meson_bo));
+       if (!bo_data) {
+               TBM_BACKEND_ERR("fail to allocate the bo_data private");
+               if (error)
+                       *error = HAL_TBM_ERROR_OUT_OF_MEMORY;
+               return NULL;
+       }
+
+       bo_data->bufmgr_data = bufmgr_data;
+       bo_data->bufmgr_fd = bufmgr_data->fd;
+       bo_data->gem = open_arg.handle;
+
+       info_arg.handle = bo_data->gem;
+       if (drmCommandWriteRead(bufmgr_data->fd, DRM_MESON_GEM_GET, &info_arg, sizeof(info_arg))) {
+               TBM_BACKEND_ERR("Cannot get gem info from gem:%d, key:%d (%m)", bo_data->gem, key);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->size = info_arg.size;
+       bo_data->flags_meson = info_arg.flags;
+       bo_data->flags_tbm = _get_tbm_flag_from_meson(info_arg.flags);
+       bo_data->name = key;
+
+       prime_arg.handle = bo_data->gem;
+       if (drmIoctl(bufmgr_data->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &prime_arg)) {
+               TBM_BACKEND_ERR("fail to DRM_IOCTL_PRIME_HANDLE_TO_FD handle:%d (%m)", prime_arg.handle);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               goto fail;
+       }
+
+       bo_data->dmabuf = prime_arg.fd;
+
+       /* add bo_data to hash */
+       if (drmHashInsert(bufmgr_data->hash_bos, bo_data->name, (void *)bo_data) < 0)
+               TBM_BACKEND_ERR("Cannot insert bo_data to Hash(%d)", bo_data->name);
+
+       TBM_BACKEND_DBG("    bo_data:%p, gem:%d(%d), fd:%d, flags:%d, size:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           bo_data->flags_tbm,
+           bo_data->size);
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return (hal_tbm_bo *)bo_data;
+
+fail:
+       if (bo_data) {
+               if (bo_data->gem) {
+                       close_arg.handle = bo_data->gem;
+                       drmIoctl(bufmgr_data->fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
+               }
+               free(bo_data);
+       }
+
+       return NULL;
+}
+
+static void
+tbm_meson_bo_free(hal_tbm_bo *bo)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       tbm_meson_bo *temp;
+       tbm_meson_bufmgr *bufmgr_data;
+       struct drm_gem_close arg = {0, };
+       int ret;
+
+       if (!bo_data)
+               return;
+
+       bufmgr_data = bo_data->bufmgr_data;
+       if (!bufmgr_data)
+               return;
+
+       TBM_BACKEND_DBG("      bo_data:%p, gem:%d(%d), fd:%d, size:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           bo_data->size);
+
+       if (bo_data->pBase) {
+               if (munmap(bo_data->pBase, bo_data->size) == -1) {
+                       TBM_BACKEND_ERR("bo_data:%p fail to munmap(%m)", bo_data);
+               }
+       }
+
+       /* close dmabuf */
+       if (bo_data->dmabuf) {
+               close(bo_data->dmabuf);
+               bo_data->dmabuf = 0;
+       }
+
+       /* delete bo_data from hash */
+       ret = drmHashLookup(bufmgr_data->hash_bos, bo_data->name, (void **)&temp);
+       if (ret == 0)
+               drmHashDelete(bufmgr_data->hash_bos, bo_data->name);
+       else
+               TBM_BACKEND_ERR("Cannot find bo_data to Hash(%d), ret:%d", bo_data->name, ret);
+
+       if (temp != bo_data)
+               TBM_BACKEND_ERR("hash_bos probably has several BOs with same name!!!");
+
+       memset(&arg, 0, sizeof(arg));
+       arg.handle = bo_data->gem;
+       if (drmIoctl(bo_data->bufmgr_fd, DRM_IOCTL_GEM_CLOSE, &arg))
+               TBM_BACKEND_ERR("bo_data:%p fail to gem close.(%m)", bo_data);
+
+       free(bo_data);
+}
+
+static int
+tbm_meson_bo_get_size(hal_tbm_bo *bo, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return 0;
+       }
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return bo_data->size;
+}
+
+static hal_tbm_bo_memory_type
+tbm_meson_bo_get_memory_type(hal_tbm_bo *bo, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return HAL_TBM_BO_DEFAULT;
+       }
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return bo_data->flags_tbm;
+}
+
+static hal_tbm_bo_handle
+tbm_meson_bo_get_handle(hal_tbm_bo *bo, hal_tbm_bo_device_type device, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       hal_tbm_bo_handle bo_handle;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       if (!bo_data->gem) {
+               TBM_BACKEND_ERR("Cannot map gem:%d", bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       TBM_BACKEND_DBG("bo_data:%p, gem:%d(%d), fd:%d, flags:%d, size:%d, %s",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           bo_data->flags_tbm,
+           bo_data->size,
+           STR_DEVICE[device]);
+
+       /*Get mapped bo_handle*/
+       bo_handle = _meson_bo_handle(bo_data, device);
+       if (bo_handle.ptr == NULL) {
+               TBM_BACKEND_ERR("Cannot get handle: gem:%d, device:%d",
+                       bo_data->gem, device);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return bo_handle;
+}
+
+static hal_tbm_bo_handle
+tbm_meson_bo_map(hal_tbm_bo *bo, hal_tbm_bo_device_type device,
+                               hal_tbm_bo_access_option opt, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       hal_tbm_bo_handle bo_handle;
+       tbm_meson_bufmgr *bufmgr_data;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       bufmgr_data = bo_data->bufmgr_data;
+       if (!bufmgr_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       if (!bo_data->gem) {
+               TBM_BACKEND_ERR("Cannot map gem:%d", bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       TBM_BACKEND_DBG("       bo_data:%p, gem:%d(%d), fd:%d, %s, %s",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           STR_DEVICE[device],
+           STR_OPT[opt]);
+
+       /*Get mapped bo_handle*/
+       bo_handle = _meson_bo_handle(bo_data, device);
+       if (bo_handle.ptr == NULL) {
+               TBM_BACKEND_ERR("Cannot get handle: gem:%d, device:%d, opt:%d",
+                              bo_data->gem, device, opt);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return (hal_tbm_bo_handle) NULL;
+       }
+
+       if ((device == HAL_TBM_DEVICE_CPU) && (opt & HAL_TBM_OPTION_WRITE)) {
+               _meson_cache_flush(bo_data);
+               TBM_BACKEND_DBG("cache flush done");
+       }
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return bo_handle;
+}
+
+static hal_tbm_error
+tbm_meson_bo_unmap(hal_tbm_bo *bo)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       tbm_meson_bufmgr *bufmgr_data;
+
+       if (!bo_data)
+               return HAL_TBM_ERROR_INVALID_PARAMETER;
+
+       bufmgr_data = bo_data->bufmgr_data;
+       if (!bufmgr_data)
+               return HAL_TBM_ERROR_INVALID_PARAMETER;
+
+       if (!bo_data->gem)
+               return HAL_TBM_ERROR_INVALID_PARAMETER;
+
+       TBM_BACKEND_DBG("     bo_data:%p, gem:%d(%d), fd:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf);
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static hal_tbm_error
+tbm_meson_bo_lock(hal_tbm_bo *bo, hal_tbm_bo_device_type device,
+                               hal_tbm_bo_access_option opt)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       struct drm_meson_gem_cpu_access arg = {0, };
+
+       if (device != HAL_TBM_DEVICE_CPU)
+               return HAL_TBM_ERROR_NONE;
+
+       pthread_mutex_lock(&bo_data->mutex);
+       bo_data->device = device;
+       pthread_mutex_unlock(&bo_data->mutex);
+
+       arg.handle = bo_data->gem;
+       if (drmCommandWriteRead(bo_data->bufmgr_fd, DRM_MESON_GEM_CPU_PREP, &arg, sizeof(arg))) {
+               TBM_BACKEND_ERR("DRM_MESON_GEM_CPU_FINI failed name:%d (%m)", bo_data->name);
+               return HAL_TBM_ERROR_INVALID_OPERATION;
+       }
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static hal_tbm_error
+tbm_meson_bo_unlock(hal_tbm_bo *bo)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       struct drm_meson_gem_cpu_access arg = {0, };
+
+       pthread_mutex_lock(&bo_data->mutex);
+       if (bo_data->device != HAL_TBM_DEVICE_CPU) {
+               pthread_mutex_unlock(&bo_data->mutex);
+               return HAL_TBM_ERROR_NONE;
+       }
+
+       bo_data->device = HAL_TBM_DEVICE_DEFAULT;
+       pthread_mutex_unlock(&bo_data->mutex);
+
+       arg.handle = bo_data->gem;
+       if (drmCommandWriteRead(bo_data->bufmgr_fd, DRM_MESON_GEM_CPU_FINI, &arg, sizeof(arg))) {
+               TBM_BACKEND_ERR("DRM_MESON_GEM_CPU_FINI failed name:%d (%m)", bo_data->name);
+               return HAL_TBM_ERROR_INVALID_OPERATION;
+       }
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static hal_tbm_fd
+tbm_meson_bo_export_fd(hal_tbm_bo *bo, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+       int ret;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return -1;
+       }
+
+       struct drm_prime_handle arg = {0, };
+
+       arg.handle = bo_data->gem;
+       ret = drmIoctl(bo_data->bufmgr_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg);
+       if (ret) {
+               TBM_BACKEND_ERR("bo_data:%p Cannot dmabuf:%d (%s)", bo_data, bo_data->gem);
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_OPERATION;
+               return (hal_tbm_fd) ret;
+       }
+
+       TBM_BACKEND_DBG(" bo_data:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           arg.fd,
+           bo_data->flags_tbm,
+           bo_data->size);
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return (hal_tbm_fd)arg.fd;
+}
+
+static hal_tbm_key
+tbm_meson_bo_export_key(hal_tbm_bo *bo, hal_tbm_error *error)
+{
+       tbm_meson_bo *bo_data = (tbm_meson_bo *)bo;
+
+       if (!bo_data) {
+               if (error)
+                       *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+               return 0;
+       }
+
+       if (!bo_data->name) {
+               bo_data->name = _get_name(bo_data->bufmgr_fd, bo_data->gem);
+               if (!bo_data->name) {
+                       TBM_BACKEND_ERR("error Cannot get name");
+                       if (error)
+                               *error = HAL_TBM_ERROR_INVALID_PARAMETER;
+                       return 0;
+               }
+       }
+
+       TBM_BACKEND_DBG("    bo_data:%p, gem:%d(%d), fd:%d, flags:%d, size:%d",
+           bo_data,
+           bo_data->gem,
+               bo_data->name,
+           bo_data->dmabuf,
+           bo_data->flags_tbm,
+           bo_data->size);
+
+       if (error)
+               *error = HAL_TBM_ERROR_NONE;
+
+       return (hal_tbm_key)bo_data->name;
+}
+
+static hal_tbm_error
+_tbm_meson_authenticated_drm_fd_handler(hal_tbm_fd auth_fd, void *user_data)
+{
+       tbm_meson_bufmgr *bufmgr_data = (tbm_meson_bufmgr *) user_data;
+
+       TBM_BACKEND_RETURN_VAL_IF_FAIL(bufmgr_data != NULL, HAL_TBM_ERROR_INVALID_PARAMETER);
+
+       bufmgr_data->fd = auth_fd;
+       TBM_BACKEND_INFO("Get the authenticated drm_fd(%d)!", bufmgr_data->fd);
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static int
+hal_backend_tbm_meson_exit(void *data)
+{
+       hal_tbm_backend_data *backend_data = (hal_tbm_backend_data *)data;
+       tbm_meson_bufmgr *bufmgr_data;
+       unsigned long key;
+       void *value;
+
+       TBM_BACKEND_RETURN_VAL_IF_FAIL(backend_data != NULL, -1);
+
+       bufmgr_data = (tbm_meson_bufmgr *)backend_data->bufmgr;
+       TBM_BACKEND_RETURN_VAL_IF_FAIL(bufmgr_data != NULL, -1);
+
+       if (backend_data->bufmgr_funcs)
+               free(backend_data->bufmgr_funcs);
+       if (backend_data->bo_funcs)
+               free(backend_data->bo_funcs);
+
+       if (bufmgr_data->hash_bos) {
+               while (drmHashFirst(bufmgr_data->hash_bos, &key, &value) > 0) {
+                       free(value);
+                       drmHashDelete(bufmgr_data->hash_bos, key);
+               }
+
+               drmHashDestroy(bufmgr_data->hash_bos);
+               bufmgr_data->hash_bos = NULL;
+       }
+
+       close(bufmgr_data->fd);
+
+       free(backend_data->bufmgr);
+       free(backend_data);
+
+       return HAL_TBM_ERROR_NONE;
+}
+
+static int
+hal_backend_tbm_meson_init(void **data)
+{
+       hal_tbm_backend_data *backend_data = NULL;
+       hal_tbm_bufmgr_funcs *bufmgr_funcs = NULL;
+       hal_tbm_bo_funcs *bo_funcs = NULL;
+       tbm_meson_bufmgr *bufmgr_data = NULL;
+       int drm_fd = -1;
+
+       /* allocate a hal_tbm_backend_data */
+       backend_data = calloc(1, sizeof(struct _hal_tbm_backend_data));
+       if (!backend_data) {
+               TBM_BACKEND_ERR("fail to alloc backend_data!");
+               *data = NULL;
+               return -1;
+       }
+       *data = backend_data;
+
+       /* allocate a hal_tbm_bufmgr */
+       bufmgr_data = calloc(1, sizeof(struct _tbm_meson_bufmgr));
+       if (!bufmgr_data) {
+               TBM_BACKEND_ERR("fail to alloc bufmgr_data!");
+               goto fail_alloc_bufmgr_data;
+       }
+       backend_data->bufmgr = (hal_tbm_bufmgr *)bufmgr_data;
+
+       // open drm_fd
+       drm_fd = _tbm_meson_open_drm();
+       if (drm_fd < 0) {
+               TBM_BACKEND_ERR("fail to open drm!");
+               goto fail_open_drm;
+       }
+
+       // set true when backend has a drm_device.
+       backend_data->has_drm_device = 1;
+
+       // check if drm_fd is master_drm_fd.
+       if (drmIsMaster(drm_fd)) {
+               // drm_fd is a master_drm_fd.
+               backend_data->drm_info.drm_fd = drm_fd;
+               backend_data->drm_info.is_master = 1;
+
+               bufmgr_data->fd = drm_fd;
+               TBM_BACKEND_INFO("Get the master drm_fd(%d)!", bufmgr_data->fd);
+       } else {
+               // drm_fd is not a master_drm_fd.
+               // request authenticated fd
+               close(drm_fd);
+               backend_data->drm_info.drm_fd = -1;
+               backend_data->drm_info.is_master = 0;
+               backend_data->drm_info.auth_drm_fd_func = _tbm_meson_authenticated_drm_fd_handler;
+               backend_data->drm_info.user_data = bufmgr_data;
+
+               TBM_BACKEND_INFO("A backend requests an authenticated drm_fd.");
+       }
+
+       /*Create Hash Table*/
+       bufmgr_data->hash_bos = drmHashCreate();
+
+       /* alloc and register bufmgr_funcs */
+       bufmgr_funcs = calloc(1, sizeof(struct _hal_tbm_bufmgr_funcs));
+       if (!bufmgr_funcs) {
+               TBM_BACKEND_ERR("fail to alloc bufmgr_funcs!");
+               goto fail_alloc_bufmgr_funcs;
+       }
+       backend_data->bufmgr_funcs = bufmgr_funcs;
+
+       bufmgr_funcs->bufmgr_get_capabilities = tbm_meson_bufmgr_get_capabilities;
+       bufmgr_funcs->bufmgr_get_supported_formats = tbm_meson_bufmgr_get_supported_formats;
+       bufmgr_funcs->bufmgr_get_plane_data = tbm_meson_bufmgr_get_plane_data;
+       bufmgr_funcs->bufmgr_alloc_bo = tbm_meson_bufmgr_alloc_bo;
+       bufmgr_funcs->bufmgr_alloc_bo_with_format = NULL;
+       bufmgr_funcs->bufmgr_import_fd = tbm_meson_bufmgr_import_fd;
+       bufmgr_funcs->bufmgr_import_key = tbm_meson_bufmgr_import_key;
+
+       /* alloc and register bo_funcs */
+       bo_funcs = calloc(1, sizeof(struct _hal_tbm_bo_funcs));
+       if (!bo_funcs) {
+               TBM_BACKEND_ERR("fail to alloc bo_funcs!");
+               goto fail_alloc_bo_funcs;
+       }
+       backend_data->bo_funcs = bo_funcs;
+
+       bo_funcs->bo_free = tbm_meson_bo_free;
+       bo_funcs->bo_get_size = tbm_meson_bo_get_size;
+       bo_funcs->bo_get_memory_types = tbm_meson_bo_get_memory_type;
+       bo_funcs->bo_get_handle = tbm_meson_bo_get_handle;
+       bo_funcs->bo_map = tbm_meson_bo_map;
+       bo_funcs->bo_unmap = tbm_meson_bo_unmap;
+       bo_funcs->bo_lock = tbm_meson_bo_lock;
+       bo_funcs->bo_unlock = tbm_meson_bo_unlock;
+       bo_funcs->bo_export_fd = tbm_meson_bo_export_fd;
+       bo_funcs->bo_export_key = tbm_meson_bo_export_key;
+
+       TBM_BACKEND_DBG("drm_fd:%d", bufmgr_data->fd);
+
+       return HAL_TBM_ERROR_NONE;
+
+fail_alloc_bo_funcs:
+       free(bufmgr_funcs);
+fail_alloc_bufmgr_funcs:
+       if (bufmgr_data->hash_bos)
+               drmHashDestroy(bufmgr_data->hash_bos);
+       close(bufmgr_data->fd);
+fail_open_drm:
+       free(bufmgr_data);
+fail_alloc_bufmgr_data:
+       free(backend_data);
+
+       *data = NULL;
+
+       return -1;
+}
+
+hal_backend hal_backend_tbm_data = {
+       "meson",
+       "Samsung",
+       HAL_ABI_VERSION_TIZEN_6_5,
+       hal_backend_tbm_meson_init,
+       hal_backend_tbm_meson_exit
+};