remove legacy libtbm backendtizen_7.0_m2_releasesubmit/tizen/20220628.044343submit/tizen/20220627.072238accepted/tizen/unified/20220628.220228accepted/tizen/7.0/unified/hotfix/20221116.104352accepted/tizen/7.0/unified/20221110.061411tizen_7.0_hotfixtizen_7.0accepted/tizen_7.0_unified_hotfixaccepted/tizen_7.0_unified

Change-Id: I7288b8c570614dd5e732c29897ceced60b8086e0

15 files changed, 21 insertions, 2668 deletions

diff --git a/configure.ac b/configure.ac
index 49060b1..66c6e7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@
 #  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 AC_PREREQ(2.60)
-AC_INIT(libtbm-vc4, 0.1.0)
+AC_INIT(hal-backend-tbm-vc4, 0.1.0)
 AC_USE_SYSTEM_EXTENSIONS
 AC_CONFIG_SRCDIR([Makefile.am])
 AM_INIT_AUTOMAKE([dist-bzip2])
@@ -38,7 +38,6 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 PKG_CHECK_MODULES(LIBDRM, libdrm)
 PKG_CHECK_MODULES(LIBDRM_VC4, libdrm_vc4)
-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)
@@ -82,35 +81,21 @@ if test "x$BACKEND_CTRL" = xyes; then
     AC_DEFINE(ALWAYS_BACKEND_CTRL, 1, [Enable always backend ctrl])
 fi
 
-# for libtbm-vc4
-LIBTBM_VC4_CFLAGS="$LIBDRM_CFLAGS $LIBTBM_CFLAGS $DLOG_CFLAGS $LIBUDEV_CFLAGS $LIBDRM_VC4_CFLAGS"
-LIBTBM_VC4_LIBS="$LIBDRM_LIBS $LIBTBM_LIBS $DLOG_LIBS $LIBUDEV_LIBS $LIBDRM_VC4_LIBS"
-AC_SUBST(LIBTBM_VC4_CFLAGS)
-AC_SUBST(LIBTBM_VC4_LIBS)
-
-bufmgr_dir=${libdir#*/}
-AC_SUBST(bufmgr_dir)
-
-# for libhal-backend-tbm-vc4
 LIBHAL_BACKEND_TBM_VC4_CFLAGS="$HAL_API_COMMON_CFLAGS $HAL_API_TBM_CFLAGS $LIBDRM_CFLAGS $LIBDRM_VC4_CFLAGS $DLOG_CFLAGS $LIBUDEV_CFLAGS"
 LIBHAL_BACKEND_TBM_VC4_LIBS="$HAL_API_COMMON_LIBS $HAL_API_TBM_LIBS $LIBDRM_LIBS $LIBDRM_VC4_LIBS $DLOG_LIBS $LIBUDEV_LIBS"
+
 AC_SUBST(LIBHAL_BACKEND_TBM_VC4_CFLAGS)
 AC_SUBST(LIBHAL_BACKEND_TBM_VC4_LIBS)
 
 AC_OUTPUT([
 	Makefile
-	src/libtbm-vc4/Makefile
-	src/libhal-backend-tbm-vc4/Makefile
 	src/Makefile])
 
 echo ""
 echo "CFLAGS  : $CFLAGS"
 echo "LDFLAGS : $LDFLAGS"
-echo "LIBTBM_VC4_CFLAGS : $LIBTBM_VC4_CFLAGS"
-echo "LIBTBM_VC4_LIBS   : $LIBTBM_VC4_LIBS"
-echo "bufmgr_dir : $bufmgr_dir"
 echo "LIBHAL_BACKEND_TBM_VC4_CFLAGS : $LIBHAL_BACKEND_TBM_VC4_CFLAGS"
 echo "LIBHAL_BACKEND_TBM_VC4_LIBS   : $LIBHAL_BACKEND_TBM_VC4_LIBS"
-echo "hal-libdir : $HAL_LIBDIR"
+echo "HAL_LIBDIR : $HAL_LIBDIR"
 echo ""
 
diff --git a/packaging/libhal-backend-tbm-vc4.manifest b/packaging/hal-backend-tbm-vc4.manifest
index 75b0fa5..75b0fa5 100644
--- a/packaging/libhal-backend-tbm-vc4.manifest
+++ b/packaging/hal-backend-tbm-vc4.manifest
diff --git a/packaging/libtbm-vc4.spec b/packaging/hal-backend-tbm-vc4.spec
index de265a3..9d738b0 100644
--- a/packaging/libtbm-vc4.spec
+++ b/packaging/hal-backend-tbm-vc4.spec
@@ -1,16 +1,14 @@
-Name:           libtbm-vc4
+Name:           hal-backend-tbm-vc4
 Version:        3.0.5
 Release:        1
 License:        MIT
-Summary:        Tizen Buffer Manager - vc4 backend
+Summary:        hal-backend-tbm module for vc4
 Group:          System/Libraries
 Source0:        %{name}-%{version}.tar.gz
-Source1001:	    %{name}.manifest
-Source1002:	    libhal-backend-tbm-vc4.manifest
+Source1001:     %{name}.manifest
 
 BuildRequires:  pkgconfig(libdrm)
 BuildRequires:  pkgconfig(libdrm_vc4)
-BuildRequires:  pkgconfig(libtbm)
 BuildRequires:  pkgconfig(hal-api-common)
 BuildRequires:  pkgconfig(hal-api-tbm)
 BuildRequires:  pkgconfig(dlog)
@@ -18,25 +16,15 @@ BuildRequires:  pkgconfig(libudev)
 ExclusiveArch:  %{arm} aarch64
 
 %description
-descriptionion: Tizen Buffer manager backend module for vc4
-
-%package -n hal-backend-tbm-vc4
-Summary:	hal-backend-tbm module for vc4
-Group:		System/Libraries
-Requires:	hal-api-tbm
-Requires:	hal-api-common
-
-%description -n hal-backend-tbm-vc4
-descriptionion: hal tbm backend module for vc4
+description: hal tbm backend module for vc4
 
 %prep
 %setup -q
 cp %{SOURCE1001} .
-cp %{SOURCE1002} .
 
 %build
 
-%reconfigure --prefix=%{_prefix} --libdir=%{_libdir}/bufmgr \
+%reconfigure --prefix=%{_prefix} --libdir=%{_libdir} \
 			--with-hal-libdir=%{_hal_libdir} \
 			--disable-align-eight \
 			--disable-cachectrl \
@@ -48,10 +36,6 @@ make %{?_smp_mflags}
 rm -rf %{buildroot}
 %make_install
 
-# make rule for tgl
-mkdir -p %{buildroot}%{_libdir}/udev/rules.d/
-cp -af rules/99-libtbm-vc4.rules %{buildroot}%{_libdir}/udev/rules.d/
-
 # make rule and license files
 mkdir -p %{buildroot}%{_hal_libdir}/udev/rules.d/
 cp -af rules/99-libhal-backend-tbm-vc4.rules %{buildroot}%{_hal_libdir}/udev/rules.d/
@@ -59,29 +43,15 @@ mkdir -p %{buildroot}%{_hal_licensedir}/libhal-backend-tbm-vc4
 cp -af COPYING %{buildroot}%{_hal_licensedir}/libhal-backend-tbm-vc4
 
 %post
-if [ -f %{_libdir}/bufmgr/libtbm_default.so ]; then
-    rm -rf %{_libdir}/bufmgr/libtbm_default.so
-fi
-ln -s libtbm-vc4.so %{_libdir}/bufmgr/libtbm_default.so
-
-%postun -p /sbin/ldconfig
-
-%post -n hal-backend-tbm-vc4
 if [ -f %{_hal_libdir}/libhal-backend-tbm.so ]; then
     rm -rf %{_hal_libdir}/libhal-backend-tbm.so
 fi
 ln -s libhal-backend-tbm-vc4.so %{_hal_libdir}/libhal-backend-tbm.so
 
-%postun -n hal-backend-tbm-vc4 -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
 
 %files
 %manifest %{name}.manifest
-%license COPYING
-%{_libdir}/bufmgr/libtbm-*.so*
-%{_libdir}/udev/rules.d/99-libtbm-vc4.rules
-
-%files -n hal-backend-tbm-vc4
-%manifest libhal-backend-tbm-vc4.manifest
 %{_hal_licensedir}/libhal-backend-tbm-vc4/COPYING
 %{_hal_libdir}/libhal-backend-*.so*
 %{_hal_libdir}/udev/rules.d/99-libhal-backend-tbm-vc4.rules
diff --git a/packaging/libtbm-vc4.manifest b/packaging/libtbm-vc4.manifest
deleted file mode 100644
index 75b0fa5..0000000
--- a/packaging/libtbm-vc4.manifest
+++ /dev/null
@@ -1,5 +0,0 @@
-<manifest>
-    <request>
-        <domain name="_"/>
-    </request>
-</manifest>
diff --git a/rules/99-libtbm-vc4.rules b/rules/99-libtbm-vc4.rules
deleted file mode 100644
index a826c4c..0000000
--- a/rules/99-libtbm-vc4.rules
+++ /dev/null
@@ -1,2 +0,0 @@
-KERNEL=="tgl", MODE="0666", GROUP="display", SECLABEL{smack}="*"
-KERNEL=="slp_global_lock*", MODE="0666", GROUP="display", SECLABEL{smack}="*"
diff --git a/src/Makefile.am b/src/Makefile.am
index ae40a03..f7436a5 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1 +1,12 @@
-SUBDIRS = libtbm-vc4 libhal-backend-tbm-vc4
\ No newline at end of file
+AM_CFLAGS = \
+	@LIBHAL_BACKEND_TBM_VC4_CFLAGS@ \
+	-I$(top_srcdir) \
+	-I$(top_srcdir)/src
+
+libhal_backend_tbm_vc4_la_LTLIBRARIES = libhal-backend-tbm-vc4.la
+libhal_backend_tbm_vc4_ladir = @HAL_LIBDIR@
+libhal_backend_tbm_vc4_la_LIBADD = @LIBHAL_BACKEND_TBM_VC4_LIBS@
+
+libhal_backend_tbm_vc4_la_SOURCES = \
+	tbm_backend_log.c \
+	tbm_backend_vc4.c
diff --git a/src/libhal-backend-tbm-vc4/Makefile.am b/src/libhal-backend-tbm-vc4/Makefile.am
deleted file mode 100644
index 6b576fc..0000000
--- a/src/libhal-backend-tbm-vc4/Makefile.am
+++ /dev/null
@@ -1,12 +0,0 @@
-AM_CFLAGS = \
-	@LIBHAL_BACKEND_TBM_VC4_CFLAGS@ \
-	-I$(top_srcdir) \
-	-I$(top_srcdir)/src/libhal-backend-tbm-vc4
-
-libhal_backend_tbm_vc4_la_LTLIBRARIES = libhal-backend-tbm-vc4.la
-libhal_backend_tbm_vc4_ladir = @HAL_LIBDIR@
-libhal_backend_tbm_vc4_la_LIBADD = @LIBHAL_BACKEND_TBM_VC4_LIBS@
-
-libhal_backend_tbm_vc4_la_SOURCES = \
-	tbm_backend_log.c \
-	tbm_backend_vc4.c
diff --git a/src/libtbm-vc4/Makefile.am b/src/libtbm-vc4/Makefile.am
deleted file mode 100644
index d8663e3..0000000
--- a/src/libtbm-vc4/Makefile.am
+++ /dev/null
@@ -1,11 +0,0 @@
-AM_CFLAGS = \
-	@LIBTBM_VC4_CFLAGS@ \
-	-I$(top_srcdir) \
-	-I$(top_srcdir)/src/libtbm-vc4
-
-libtbm_vc4_la_LTLIBRARIES = libtbm-vc4.la
-libtbm_vc4_ladir = /${bufmgr_dir}
-libtbm_vc4_la_LIBADD = @LIBTBM_VC4_LIBS@
-
-libtbm_vc4_la_SOURCES = \
-	tbm_bufmgr_vc4.c
diff --git a/src/libtbm-vc4/tbm_bufmgr_tgl.h b/src/libtbm-vc4/tbm_bufmgr_tgl.h
deleted file mode 100644
index 3fe68b3..0000000
--- a/src/libtbm-vc4/tbm_bufmgr_tgl.h
+++ /dev/null
@@ -1,180 +0,0 @@
-/**************************************************************************
- *
- * libtbm
- *
- * Copyright 2012 Samsung Electronics co., Ltd. All Rights Reserved.
- *
- * Contact: SooChan Lim <sc1.lim@samsung.com>, Sangjin Lee <lsj119@samsung.com>
- * Boram Park <boram1288.park@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.
- *
- * **************************************************************************/
-
-#ifndef __TBM_BUFMGR_TGL_H__
-#define __TBM_BUFMGR_TGL_H__
-
-#include <linux/ioctl.h>
-
-#ifdef ENABLE_CACHECRTL
-static char tgl_devfile[] = "/dev/slp_global_lock";
-static char tgl_devfile1[] = "/dev/tgl";
-#endif
-
-#define TGL_IOCTL_BASE		0x32
-#define TGL_IO(nr)			_IO(TGL_IOCTL_BASE, nr)
-#define TGL_IOR(nr, type)	_IOR(TGL_IOCTL_BASE, nr, type)
-#define TGL_IOW(nr, type)	_IOW(TGL_IOCTL_BASE, nr, type)
-#define TGL_IOWR(nr, type)	_IOWR(TGL_IOCTL_BASE, nr, type)
-
-/**
- * struct tgl_ver_data - tgl version data structure
- * @major: major version
- * @minor: minor version
- */
-struct tgl_ver_data {
-	unsigned int major;
-	unsigned int minor;
-};
-
-/**
- * struct tgl_reg_data - tgl  data structure
- * @key: lookup key
- * @timeout_ms: timeout value for waiting event
- */
-struct tgl_reg_data {
-	unsigned int key;
-	unsigned int timeout_ms;
-};
-
-enum tgl_type_data {
-	TGL_TYPE_NONE = 0,
-	TGL_TYPE_READ = (1 << 0),
-	TGL_TYPE_WRITE = (1 << 1),
-};
-
-/**
- * struct tgl_lock_data - tgl lock data structure
- * @key: lookup key
- * @type: lock type that is in tgl_type_data
- */
-struct tgl_lock_data {
-	unsigned int key;
-	enum tgl_type_data type;
-};
-
-enum tgl_status_data {
-	TGL_STATUS_UNLOCKED,
-	TGL_STATUS_LOCKED,
-};
-
-/**
- * struct tgl_usr_data - tgl user data structure
- * @key: lookup key
- * @data1: user data 1
- * @data2: user data 2
- * @status: lock status that is in tgl_status_data
- */
-struct tgl_usr_data {
-	unsigned int key;
-	unsigned int data1;
-	unsigned int data2;
-	enum tgl_status_data status;
-};
-
-enum {
-	_TGL_GET_VERSION,
-	_TGL_REGISTER,
-	_TGL_UNREGISTER,
-	_TGL_LOCK,
-	_TGL_UNLOCK,
-	_TGL_SET_DATA,
-	_TGL_GET_DATA,
-};
-
-/* get version information */
-#define TGL_IOCTL_GET_VERSION	TGL_IOR(_TGL_GET_VERSION, struct tgl_ver_data)
-/* register key */
-#define TGL_IOCTL_REGISTER		TGL_IOW(_TGL_REGISTER, struct tgl_reg_data)
-/* unregister key */
-#define TGL_IOCTL_UNREGISTER	TGL_IOW(_TGL_UNREGISTER, struct tgl_reg_data)
-/* lock with key */
-#define TGL_IOCTL_LOCK			TGL_IOW(_TGL_LOCK, struct tgl_lock_data)
-/* unlock with key */
-#define TGL_IOCTL_UNLOCK		TGL_IOW(_TGL_UNLOCK, struct tgl_lock_data)
-/* set user data with key */
-#define TGL_IOCTL_SET_DATA		TGL_IOW(_TGL_SET_DATA, struct tgl_usr_data)
-/* get user data with key */
-#define TGL_IOCTL_GET_DATA		TGL_IOR(_TGL_GET_DATA, struct tgl_usr_data)
-
-#ifdef ENABLE_CACHECRTL
-/* indicate cache units. */
-enum e_drm_vc4_gem_cache_sel {
-	VC4_DRM_L1_CACHE		= 1 << 0,
-	VC4_DRM_L2_CACHE		= 1 << 1,
-	VC4_DRM_ALL_CORES		= 1 << 2,
-	VC4_DRM_ALL_CACHES		= VC4_DRM_L1_CACHE |
-						VC4_DRM_L2_CACHE,
-	VC4_DRM_ALL_CACHES_CORES	= VC4_DRM_L1_CACHE |
-						VC4_DRM_L2_CACHE |
-						VC4_DRM_ALL_CORES,
-	VC4_DRM_CACHE_SEL_MASK	= VC4_DRM_ALL_CACHES_CORES
-};
-
-/* indicate cache operation types. */
-enum e_drm_vc4_gem_cache_op {
-	VC4_DRM_CACHE_INV_ALL	= 1 << 3,
-	VC4_DRM_CACHE_INV_RANGE	= 1 << 4,
-	VC4_DRM_CACHE_CLN_ALL	= 1 << 5,
-	VC4_DRM_CACHE_CLN_RANGE	= 1 << 6,
-	VC4_DRM_CACHE_FSH_ALL	= VC4_DRM_CACHE_INV_ALL |
-						VC4_DRM_CACHE_CLN_ALL,
-	VC4_DRM_CACHE_FSH_RANGE	= VC4_DRM_CACHE_INV_RANGE |
-						VC4_DRM_CACHE_CLN_RANGE,
-	VC4_DRM_CACHE_OP_MASK	= VC4_DRM_CACHE_FSH_ALL |
-						VC4_DRM_CACHE_FSH_RANGE
-};
-
-/**
- * A structure for cache operation.
- *
- * @usr_addr: user space address.
- *	P.S. it SHOULD BE user space.
- * @size: buffer size for cache operation.
- * @flags: select cache unit and cache operation.
- * @gem_handle: a handle to a gem object.
- *	this gem handle is needed for cache range operation to L2 cache.
- */
-struct drm_vc4_gem_cache_op {
-	uint64_t usr_addr;
-	unsigned int size;
-	unsigned int flags;
-	unsigned int gem_handle;
-};
-
-#define DRM_VC4_GEM_CACHE_OP		0x12
-
-#define DRM_IOCTL_VC4_GEM_CACHE_OP  DRM_IOWR(DRM_COMMAND_BASE + \
-		DRM_VC4_GEM_CACHE_OP, struct drm_vc4_gem_cache_op)
-
-#endif
-
-#endif							/* __TBM_BUFMGR_TGL_H__ */
diff --git a/src/libtbm-vc4/tbm_bufmgr_vc4.c b/src/libtbm-vc4/tbm_bufmgr_vc4.c
deleted file mode 100644
index 1a5f266..0000000
--- a/src/libtbm-vc4/tbm_bufmgr_vc4.c
+++ /dev/null
@@ -1,2403 +0,0 @@
-/**************************************************************************
-
-libtbm_vc4
-
-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 <vc4_drm.h>
-#include <pthread.h>
-#include <tbm_backend.h>
-#include <tbm_drm_helper.h>
-#include <tbm_log.h>
-#include "tbm_bufmgr_tgl.h"
-
-#define TBM_COLOR_FORMAT_COUNT 4
-
-#define VC4_DRM_NAME "vc4"
-
-#define STRERR_BUFSIZE 128
-
-#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))
-
-#ifdef ALIGN_EIGHT
-#define TBM_SURFACE_ALIGNMENT_PLANE (8)
-#define TBM_SURFACE_ALIGNMENT_PITCH_RGB (8)
-#else
-#define TBM_SURFACE_ALIGNMENT_PLANE (16)
-#define TBM_SURFACE_ALIGNMENT_PITCH_RGB (16)
-#endif
-
-#define TBM_SURFACE_ALIGNMENT_PLANE_NV12 (4096)
-#define TBM_SURFACE_ALIGNMENT_PITCH_YUV (32)
-#define TBM_SURFACE_ALIGNMENT_HEIGHT_YUV (16)
-
-//#define VC4_TILED_FORMAT 1
-
-struct dma_buf_info {
-	unsigned long	size;
-	unsigned int	fence_supported;
-	unsigned int	padding;
-};
-
-#define DMA_BUF_ACCESS_READ		0x1
-#define DMA_BUF_ACCESS_WRITE		0x2
-#define DMA_BUF_ACCESS_DMA		0x4
-#define DMA_BUF_ACCESS_MAX		0x8
-
-#define DMA_FENCE_LIST_MAX		5
-
-struct dma_buf_fence {
-	unsigned long		ctx;
-	unsigned int		type;
-};
-
-#define DMABUF_IOCTL_BASE	'F'
-#define DMABUF_IOWR(nr, type)	_IOWR(DMABUF_IOCTL_BASE, nr, type)
-
-#define DMABUF_IOCTL_GET_INFO	DMABUF_IOWR(0x00, struct dma_buf_info)
-#define DMABUF_IOCTL_GET_FENCE	DMABUF_IOWR(0x01, struct dma_buf_fence)
-#define DMABUF_IOCTL_PUT_FENCE	DMABUF_IOWR(0x02, struct dma_buf_fence)
-
-/* tgl key values */
-#define GLOBAL_KEY   ((unsigned int)(-1))
-/* TBM_CACHE */
-#define TBM_VC4_CACHE_INV       0x01 /**< cache invalidate  */
-#define TBM_VC4_CACHE_CLN       0x02 /**< cache clean */
-#define TBM_VC4_CACHE_ALL       0x10 /**< cache all */
-#define TBM_VC4_CACHE_FLUSH     (TBM_VC4_CACHE_INV|TBM_VC4_CACHE_CLN) /**< cache flush  */
-#define TBM_VC4_CACHE_FLUSH_ALL (TBM_VC4_CACHE_FLUSH|TBM_VC4_CACHE_ALL)	/**< cache flush all */
-
-enum {
-	DEVICE_NONE = 0,
-	DEVICE_CA,					/* cache aware device */
-	DEVICE_CO					/* cache oblivious device */
-};
-
-typedef union _tbm_bo_cache_state tbm_bo_cache_state;
-
-union _tbm_bo_cache_state {
-	unsigned int val;
-	struct {
-		unsigned int cntFlush:16;	/*Flush all index for sync */
-		unsigned int isCached:1;
-		unsigned int isDirtied:2;
-	} data;
-};
-
-typedef struct _tbm_bufmgr_vc4 *tbm_bufmgr_vc4;
-typedef struct _tbm_bo_vc4 *tbm_bo_vc4;
-
-/* tbm buffor object for vc4 */
-struct _tbm_bo_vc4 {
-	int fd;
-
-	unsigned int name;    /* FLINK ID */
-
-	unsigned int gem;     /* GEM Handle */
-
-	unsigned int dmabuf;  /* fd for dmabuf */
-
-	void *pBase;          /* virtual address */
-
-	unsigned int size;
-
-	unsigned int flags_tbm; /*not used now*//*currently no values for the flags,but it may be used in future extension*/
-
-	pthread_mutex_t mutex;
-	struct dma_buf_fence dma_fence[DMA_FENCE_LIST_MAX];
-	int device;
-	int opt;
-
-	tbm_bo_cache_state cache_state;
-	unsigned int map_cnt;
-	int last_map_device;
-
-	tbm_bufmgr_vc4 bufmgr_vc4;
-};
-
-/* tbm bufmgr private for vc4 */
-struct _tbm_bufmgr_vc4 {
-	int fd;
-	int isLocal;
-	void *hashBos;
-
-	int use_dma_fence;
-
-	int tgl_fd;
-
-	char *device_name;
-	void *bind_display;
-
-	tbm_backend_bufmgr_func *bufmgr_func;
-	tbm_backend_bo_func *bo_func;
-
-	tbm_bufmgr bufmgr;
-};
-
-static char *STR_DEVICE[] = {
-	"DEF",
-	"CPU",
-	"2D",
-	"3D",
-	"MM"
-};
-
-static char *STR_OPT[] = {
-	"NONE",
-	"RD",
-	"WR",
-	"RDWR"
-};
-
-
-static uint32_t tbm_vc4_color_format_list[TBM_COLOR_FORMAT_COUNT] = {
-										TBM_FORMAT_ARGB8888,
-										TBM_FORMAT_XRGB8888,
-										TBM_FORMAT_NV12,
-										TBM_FORMAT_YUV420
-									};
-#undef  ENABLE_CACHECRTL
-#ifdef ENABLE_CACHECRTL
-#ifdef TGL_GET_VERSION
-static inline int
-_tgl_get_version(int fd)
-{
-	struct tgl_ver_data data;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	err = ioctl(fd, TGL_IOCTL_GET_VERSION, &data);
-	if (err) {
-		TBM_ERR("error(%s) %s:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE));
-		return 0;
-	}
-
-	TBM_DBG("tgl version is (%u, %u).\n", data.major, data.minor);
-
-	return 1;
-}
-#endif
-
-static inline int
-_tgl_init(int fd, unsigned int key)
-{
-	struct tgl_reg_data data;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	data.key = key;
-	data.timeout_ms = 1000;
-
-	err = ioctl(fd, TGL_IOCTL_REGISTER, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int
-_tgl_destroy(int fd, unsigned int key)
-{
-	struct tgl_reg_data data;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	data.key = key;
-	err = ioctl(fd, TGL_IOCTL_UNREGISTER, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int
-_tgl_lock(int fd, unsigned int key, int opt)
-{
-	struct tgl_lock_data data;
-	enum tgl_type_data tgl_type;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	switch (opt) {
-	case TBM_OPTION_READ:
-		tgl_type = TGL_TYPE_READ;
-		break;
-	case TBM_OPTION_WRITE:
-		tgl_type = TGL_TYPE_WRITE;
-		break;
-	default:
-		tgl_type = TGL_TYPE_NONE;
-		break;
-	}
-
-	data.key = key;
-	data.type = tgl_type;
-
-	err = ioctl(fd, TGL_IOCTL_LOCK, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d opt:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key, opt);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int
-_tgl_unlock(int fd, unsigned int key)
-{
-	struct tgl_lock_data data;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	data.key = key;
-	data.type = TGL_TYPE_NONE;
-
-	err = ioctl(fd, TGL_IOCTL_UNLOCK, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int
-_tgl_set_data(int fd, unsigned int key, unsigned int val)
-{
-	struct tgl_usr_data data;
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	data.key = key;
-	data.data1 = val;
-
-	err = ioctl(fd, TGL_IOCTL_SET_DATA, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline unsigned int
-_tgl_get_data(int fd, unsigned int key)
-{
-	struct tgl_usr_data data = { 0, };
-	int err;
-	char buf[STRERR_BUFSIZE];
-
-	data.key = key;
-
-	err = ioctl(fd, TGL_IOCTL_GET_DATA, &data);
-	if (err) {
-		TBM_ERR("error(%s) key:%d\n",
-			strerror_r(errno, buf, STRERR_BUFSIZE), key);
-		return 0;
-	}
-
-	return data.data1;
-}
-
-static int
-_vc4_cache_flush(tbm_bufmgr_vc4 bufmgr_vc4, tbm_bo_vc4 bo_vc4, int flags)
-{
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, 0);
-
-	/* cache flush is managed by kernel side when using dma-fence. */
-	if (bufmgr_vc4->use_dma_fence)
-		return 1;
-
-	struct drm_vc4_gem_cache_op cache_op = {0, };
-	int ret;
-
-	/* if bo_vc4 is null, do cache_flush_all */
-	if (bo_vc4) {
-		cache_op.flags = 0;
-		cache_op.usr_addr = (uint64_t)((uint32_t)bo_vc4->pBase);
-		cache_op.size = bo_vc4->size;
-	} else {
-		flags = TBM_VC4_CACHE_FLUSH_ALL;
-		cache_op.flags = 0;
-		cache_op.usr_addr = 0;
-		cache_op.size = 0;
-	}
-
-	if (flags & TBM_VC4_CACHE_INV) {
-		if (flags & TBM_VC4_CACHE_ALL)
-			cache_op.flags |= VC4_DRM_CACHE_INV_ALL;
-		else
-			cache_op.flags |= VC4_DRM_CACHE_INV_RANGE;
-	}
-
-	if (flags & TBM_VC4_CACHE_CLN) {
-		if (flags & TBM_VC4_CACHE_ALL)
-			cache_op.flags |= VC4_DRM_CACHE_CLN_ALL;
-		else
-			cache_op.flags |= VC4_DRM_CACHE_CLN_RANGE;
-	}
-
-	if (flags & TBM_VC4_CACHE_ALL)
-		cache_op.flags |= VC4_DRM_ALL_CACHES_CORES;
-
-	ret = drmCommandWriteRead(bufmgr_vc4->fd, DRM_VC4_GEM_CACHE_OP, &cache_op,
-				  sizeof(cache_op));
-	if (ret) {
-		TBM_ERR("fail to flush the cache.\n");
-		return 0;
-	}
-
-	return 1;
-}
-#endif
-
-static int
-_bo_init_cache_state(tbm_bufmgr_vc4 bufmgr_vc4, tbm_bo_vc4 bo_vc4, int import)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, 0);
-	TBM_RETURN_VAL_IF_FAIL(bo_vc4 != NULL, 0);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return 1;
-
-	_tgl_init(bufmgr_vc4->tgl_fd, bo_vc4->name);
-
-	tbm_bo_cache_state cache_state;
-
-	if (import == 0) {
-		cache_state.data.isDirtied = DEVICE_NONE;
-		cache_state.data.isCached = 0;
-		cache_state.data.cntFlush = 0;
-
-		_tgl_set_data(bufmgr_vc4->tgl_fd, bo_vc4->name, cache_state.val);
-	}
-#endif
-
-	return 1;
-}
-
-static int
-_bo_set_cache_state(tbm_bufmgr_vc4 bufmgr_vc4, tbm_bo_vc4 bo_vc4, int device, int opt)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, 0);
-	TBM_RETURN_VAL_IF_FAIL(bo_vc4 != NULL, 0);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return 1;
-
-	char need_flush = 0;
-	unsigned short cntFlush = 0;
-
-	/* get cache state of a bo_vc4 */
-	bo_vc4->cache_state.val = _tgl_get_data(bufmgr_vc4->tgl_fd,
-				     bo_vc4->name);
-
-	/* get global cache flush count */
-	cntFlush = (unsigned short)_tgl_get_data(bufmgr_vc4->tgl_fd, GLOBAL_KEY);
-
-	if (device == TBM_DEVICE_CPU) {
-		if (bo_vc4->cache_state.data.isDirtied == DEVICE_CO &&
-		    bo_vc4->cache_state.data.isCached)
-			need_flush = TBM_VC4_CACHE_INV;
-
-		bo_vc4->cache_state.data.isCached = 1;
-		if (opt & TBM_OPTION_WRITE)
-			bo_vc4->cache_state.data.isDirtied = DEVICE_CA;
-		else {
-			if (bo_vc4->cache_state.data.isDirtied != DEVICE_CA)
-				bo_vc4->cache_state.data.isDirtied = DEVICE_NONE;
-		}
-	} else {
-		if (bo_vc4->cache_state.data.isDirtied == DEVICE_CA &&
-		    bo_vc4->cache_state.data.isCached &&
-		    bo_vc4->cache_state.data.cntFlush == cntFlush)
-			need_flush = TBM_VC4_CACHE_CLN | TBM_VC4_CACHE_ALL;
-
-		if (opt & TBM_OPTION_WRITE)
-			bo_vc4->cache_state.data.isDirtied = DEVICE_CO;
-		else {
-			if (bo_vc4->cache_state.data.isDirtied != DEVICE_CO)
-				bo_vc4->cache_state.data.isDirtied = DEVICE_NONE;
-		}
-	}
-
-	if (need_flush) {
-		if (need_flush & TBM_VC4_CACHE_ALL)
-			_tgl_set_data(bufmgr_vc4->tgl_fd, GLOBAL_KEY, (unsigned int)(++cntFlush));
-
-		/* call cache flush */
-		_vc4_cache_flush(bufmgr_vc4, bo_vc4, need_flush);
-
-		TBM_DBG(" \tcache(%d,%d)....flush:0x%x, cntFlush(%d)\n",
-		    bo_vc4->cache_state.data.isCached,
-		    bo_vc4->cache_state.data.isDirtied,
-		    need_flush,
-		    cntFlush);
-	}
-#endif
-
-	return 1;
-}
-
-static int
-_bo_save_cache_state(tbm_bufmgr_vc4 bufmgr_vc4, tbm_bo_vc4 bo_vc4)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, 0);
-	TBM_RETURN_VAL_IF_FAIL(bo_vc4 != NULL, 0);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return 1;
-
-	unsigned short cntFlush = 0;
-
-	/* get global cache flush count */
-	cntFlush = (unsigned short)_tgl_get_data(bufmgr_vc4->tgl_fd, GLOBAL_KEY);
-
-	/* save global cache flush count */
-	bo_vc4->cache_state.data.cntFlush = cntFlush;
-	_tgl_set_data(bufmgr_vc4->tgl_fd, bo_vc4->name,
-		      bo_vc4->cache_state.val);
-#endif
-
-	return 1;
-}
-
-static void
-_bo_destroy_cache_state(tbm_bufmgr_vc4 bufmgr_vc4, tbm_bo_vc4 bo_vc4)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_IF_FAIL(bufmgr_vc4 != NULL);
-	TBM_RETURN_IF_FAIL(bo_vc4 != NULL);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return ;
-
-	_tgl_destroy(bufmgr_vc4->tgl_fd, bo_vc4->name);
-#endif
-}
-
-static int
-_bufmgr_init_cache_state(tbm_bufmgr_vc4 bufmgr_vc4)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, 0);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return 1;
-
-	/* open tgl fd for saving cache flush data */
-	bufmgr_vc4->tgl_fd = open(tgl_devfile, O_RDWR);
-
-	if (bufmgr_vc4->tgl_fd < 0) {
-	    bufmgr_vc4->tgl_fd = open(tgl_devfile1, O_RDWR);
-	    if (bufmgr_vc4->tgl_fd < 0) {
-		    TBM_ERR("fail to open global_lock:%s\n",
-					tgl_devfile1);
-		    return 0;
-	    }
-	}
-
-#ifdef TGL_GET_VERSION
-	if (!_tgl_get_version(bufmgr_vc4->tgl_fd)) {
-		TBM_ERR("fail to get tgl_version. tgl init failed.\n");
-		close(bufmgr_vc4->tgl_fd);
-		return 0;
-	}
-#endif
-
-	if (!_tgl_init(bufmgr_vc4->tgl_fd, GLOBAL_KEY)) {
-		TBM_ERR("fail to initialize the tgl\n");
-		close(bufmgr_vc4->tgl_fd);
-		return 0;
-	}
-#endif
-
-	return 1;
-}
-
-static void
-_bufmgr_deinit_cache_state(tbm_bufmgr_vc4 bufmgr_vc4)
-{
-#ifdef ENABLE_CACHECRTL
-	TBM_RETURN_IF_FAIL(bufmgr_vc4 != NULL);
-
-	if (bufmgr_vc4->use_dma_fence)
-		return;
-
-	if (bufmgr_vc4->tgl_fd >= 0)
-		close(bufmgr_vc4->tgl_fd);
-#endif
-}
-
-static int
-_tbm_vc4_open_drm()
-{
-	int fd = -1;
-
-	fd = drmOpen(VC4_DRM_NAME, NULL);
-	if (fd < 0) {
-		TBM_ERR("fail to open drm.(%s)\n", VC4_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_DBG("search drm-device by udev\n");
-
-		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);
-
-		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), "vc4-drm") == 0) {
-					drm_device = device;
-					TBM_DBG("Found render device: '%s' (%s)\n",
-					    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_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 int
-_check_render_node(void)
-{
-#ifndef USE_RENDER_NODE
-	return 0;
-#else
-	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;
-
-	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, "renderD[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), "vc4-drm") == 0) {
-				drm_device = device;
-				TBM_DBG("Found render device: '%s' (%s)\n",
-				    udev_device_get_syspath(drm_device),
-				    udev_device_get_sysname(device_parent));
-				break;
-			}
-		}
-		udev_device_unref(device);
-	}
-
-	udev_enumerate_unref(e);
-	udev_unref(udev);
-
-	if (!drm_device) {
-		udev_device_unref(drm_device);
-		return 0;
-	}
-
-	udev_device_unref(drm_device);
-	return 1;
-#endif
-}
-
-static int
-_get_render_node(void)
-{
-	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 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, "renderD[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), "vc4-drm") == 0) {
-				drm_device = device;
-				TBM_DBG("Found render device: '%s' (%s)\n",
-				    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_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");
-		udev_device_unref(drm_device);
-		udev_unref(udev);
-		close(fd);
-		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_ERR("fail to DRM_IOCTL_GEM_FLINK gem:%d", gem);
-		return 0;
-	}
-
-	return (unsigned int)arg.name;
-}
-
-static tbm_bo_handle
-_vc4_bo_handle(tbm_bo_vc4 bo_vc4, 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_vc4->gem;
-		break;
-	case TBM_DEVICE_CPU:
-		if (!bo_vc4->pBase) {
-			struct drm_vc4_mmap_bo arg = {0, };
-			void *map = NULL;
-
-			arg.handle = bo_vc4->gem;
-			if (drmIoctl(bo_vc4->fd, DRM_IOCTL_VC4_MMAP_BO, &arg)) {
-				TBM_ERR("Cannot map_vc4 gem=%d\n", bo_vc4->gem);
-				return (tbm_bo_handle) NULL;
-			}
-
-			map = mmap(NULL, bo_vc4->size, PROT_READ | PROT_WRITE, MAP_SHARED,
-				   bo_vc4->fd, arg.offset);
-			if (map == MAP_FAILED) {
-				TBM_ERR("Cannot usrptr gem=%d\n", bo_vc4->gem);
-				return (tbm_bo_handle) NULL;
-			}
-			bo_vc4->pBase = map;
-		}
-		bo_handle.ptr = (void *)bo_vc4->pBase;
-		break;
-	case TBM_DEVICE_3D:
-	case TBM_DEVICE_MM:
-		if (!bo_vc4->dmabuf) {
-			struct drm_prime_handle arg = {0, };
-
-			arg.handle = bo_vc4->gem;
-			if (drmIoctl(bo_vc4->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg)) {
-				TBM_ERR("Cannot dmabuf=%d\n", bo_vc4->gem);
-				return (tbm_bo_handle) NULL;
-			}
-			bo_vc4->dmabuf = arg.fd;
-		}
-
-		bo_handle.u32 = (uint32_t)bo_vc4->dmabuf;
-		break;
-	default:
-		TBM_ERR("Not supported device:%d\n", device);
-		bo_handle.ptr = (void *) NULL;
-		break;
-	}
-
-	return bo_handle;
-}
-
-static tbm_bufmgr_capability
-tbm_vc4_bufmgr_get_capabilities(tbm_backend_bufmgr_data *bufmgr_data, tbm_error_e *error)
-{
-	tbm_bufmgr_capability capabilities = TBM_BUFMGR_CAPABILITY_NONE;
-
-#ifdef VC4_TILED_FORMAT
-	capabilities = TBM_BUFMGR_CAPABILITY_SHARE_KEY|TBM_BUFMGR_CAPABILITY_SHARE_FD|TBM_BUFMGR_CAPABILITY_TILED_MEMORY;
-#else
-	capabilities = TBM_BUFMGR_CAPABILITY_SHARE_KEY|TBM_BUFMGR_CAPABILITY_SHARE_FD;
-#endif
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return capabilities;
-}
-
-static tbm_error_e
-tbm_vc4_bufmgr_bind_native_display(tbm_backend_bufmgr_data *bufmgr_data, tbm_native_display *native_display)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != NULL, TBM_ERROR_INVALID_PARAMETER);
-
-	if (!tbm_drm_helper_wl_auth_server_init(native_display, bufmgr_vc4->fd,
-					   bufmgr_vc4->device_name, 0)) {
-		TBM_ERR("fail to tbm_drm_helper_wl_server_init\n");
-		return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	bufmgr_vc4->bind_display = native_display;
-
-	return TBM_ERROR_NONE;
-}
-static tbm_error_e
-tbm_vc4_bufmgr_get_supported_formats(tbm_backend_bufmgr_data *bufmgr_data,
-							uint32_t **formats, uint32_t *num)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	uint32_t *color_formats;
-
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != 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_vc4_color_format_list, sizeof(uint32_t)*TBM_COLOR_FORMAT_COUNT);
-
-	*formats = color_formats;
-	*num = TBM_COLOR_FORMAT_COUNT;
-
-	TBM_DBG("supported format count = %d\n", *num);
-
-	return TBM_ERROR_NONE;
-}
-
-
-#ifdef VC4_TILED_FORMAT
-#include <drm_fourcc.h>
-static inline uint32_t
-vc4_utile_width(int cpp)
-{
-	switch (cpp) {
-	case 1:
-	case 2:
-		return 8;
-	case 4:
-		return 4;
-	case 8:
-		return 2;
-	default:
-		return 4;
-	}
-}
-
-static inline uint32_t
-vc4_utile_height(int cpp)
-{
-	switch (cpp) {
-	case 1:
-		return 8;
-	case 2:
-	case 4:
-	case 8:
-		return 4;
-	default:
-		return 4;
-	}
-}
-
-static inline bool
-vc4_size_is_lt(uint32_t width, uint32_t height, int cpp)
-{
-	return (width <= 4 * vc4_utile_width(cpp) ||
-				height <= 4 * vc4_utile_height(cpp));
-}
-
-static tbm_backend_bo_data *
-tbm_vc4_bufmgr_alloc_bo_with_tiled_format(tbm_backend_bufmgr_data *bufmgr_data, int width, int height,
-			int cpp, int format, tbm_bo_memory_type flags, int bo_idx, tbm_error_e *err)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	tbm_bo_vc4 bo_vc4;
-	uint32_t utile_w = vc4_utile_width(cpp);
-	uint32_t utile_h = vc4_utile_height(cpp);
-	uint32_t level_width, level_height;
-	int size;
-	uint32_t stride;
-
-
-	level_width = width;
-	level_height = height;
-
-	if (bufmgr_vc4 == NULL) {
-		TBM_ERR("bufmgr_data is null\n");
-		return NULL;
-	}
-
-	if (vc4_size_is_lt(level_width, level_height, cpp)) {
-		level_width = SIZE_ALIGN(level_width, utile_w);
-		level_height = SIZE_ALIGN(level_height, utile_h);
-	} else {
-		level_width = SIZE_ALIGN(level_width,
-					4 * 2 * utile_w);
-		level_height = SIZE_ALIGN(level_height,
-					4 * 2 * utile_h);
-	}
-
-	stride = level_width * cpp;
-
-	size = level_height * stride;
-	size = SIZE_ALIGN(size, 4096);
-
-
-	bo_vc4 = calloc(1, sizeof(struct _tbm_bo_vc4));
-	if (!bo_vc4) {
-		TBM_ERR("fail to allocate the bo_vc4 private\n");
-		return NULL;
-	}
-	bo_vc4->bufmgr_vc4 = bufmgr_vc4;
-
-	struct drm_vc4_create_bo arg = {0, };
-
-	arg.size = (__u32)size;
-	arg.flags = flags;/*currently no values for the flags,but it may be used in future extension*/
-	if (drmIoctl(bufmgr_vc4->fd, DRM_IOCTL_VC4_CREATE_BO, &arg)) {
-		TBM_ERR("Cannot create bo_vc4(flag:%x, size:%d)\n", arg.flags,
-					(unsigned int)arg.size);
-		free(bo_vc4);
-		return NULL;
-	}
-
-	bo_vc4->fd = bufmgr_vc4->fd;
-	bo_vc4->gem = (unsigned int)arg.handle;
-	bo_vc4->size = size;
-	bo_vc4->flags_tbm = flags;
-	bo_vc4->name = _get_name(bo_vc4->fd, bo_vc4->gem);
-
-	if (!_bo_init_cache_state(bufmgr_vc4, bo_vc4, 0)) {
-		TBM_ERR("fail init cache state(%d)\n", bo_vc4->name);
-		free(bo_vc4);
-		return NULL;
-	}
-
-	pthread_mutex_init(&bo_vc4->mutex, NULL);
-
-	if (bufmgr_vc4->use_dma_fence && !bo_vc4->dmabuf) {
-		struct drm_prime_handle arg = {0, };
-
-		arg.handle = bo_vc4->gem;
-		if (drmIoctl(bo_vc4->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg)) {
-			TBM_ERR("Cannot dmabuf=%d\n", bo_vc4->gem);
-			free(bo_vc4);
-			return NULL;
-		}
-		bo_vc4->dmabuf = arg.fd;
-	}
-
-	//set modifier
-	uint64_t modifier;
-	modifier = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
-	struct drm_vc4_set_tiling set_tiling = {
-		.handle = bo_vc4->gem,
-		.modifier = modifier,
-	};
-	drmIoctl(bo_vc4->fd, DRM_IOCTL_VC4_SET_TILING, &set_tiling);
-
-
-	/* add bo_vc4 to hash */
-	if (drmHashInsert(bufmgr_vc4->hashBos, bo_vc4->name, (void *)bo_vc4) < 0)
-	  TBM_ERR("Cannot insert bo_vc4 to Hash(%d)\n", bo_vc4->name);
-
-	TBM_DBG("     bo_vc4:%p, gem:%d(%d), flags:%d(%d), size:%d\n",
-				bo_vc4,
-				bo_vc4->gem, bo_vc4->name,
-				bo_vc4->flags_tbm,
-				bo_vc4->size);
-
-	return (tbm_backend_bo_data *)bo_vc4;
-}
-#endif
-
-static tbm_error_e
-tbm_vc4_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_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	int bpp;
-	int _offset = 0;
-	int _pitch = 0;
-	int _size = 0;
-	int _bo_idx = 0;
-	int _align_height = 0;
-
-	TBM_RETURN_VAL_IF_FAIL(bufmgr_vc4 != 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;
-#ifdef VC4_TILED_FORMAT
-		if (vc4_size_is_lt(width, height, 4)) {
-			width = SIZE_ALIGN(width, vc4_utile_width(4));
-			height = SIZE_ALIGN(height, vc4_utile_height(4));
-
-		} else {
-			width = SIZE_ALIGN(width, 32);
-			uint32_t utile_h = vc4_utile_height(bpp);
-			height = SIZE_ALIGN(height, 8*utile_h);
-		}
-#endif
-		_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);
-		_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 TBM_FORMAT_NV12:
-	case 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 TBM_FORMAT_NV16:
-	case 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 TBM_FORMAT_YUV410:
-	case 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 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);
-			_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 TBM_FORMAT_YUV422:
-	case 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 TBM_FORMAT_YUV444:
-	case 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 TBM_ERROR_NONE;
-}
-
-static tbm_backend_bo_data *
-tbm_vc4_bufmgr_alloc_bo(tbm_backend_bufmgr_data *bufmgr_data, unsigned int size,
-					tbm_bo_memory_type flags, tbm_error_e *error)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	tbm_bo_vc4 bo_vc4;
-
-	if (bufmgr_vc4 == NULL) {
-		TBM_ERR("bufmgr_data is null\n");
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	bo_vc4 = calloc(1, sizeof(struct _tbm_bo_vc4));
-	if (!bo_vc4) {
-		TBM_ERR("fail to allocate the bo_vc4 private\n");
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-	bo_vc4->bufmgr_vc4 = bufmgr_vc4;
-
-	struct drm_vc4_create_bo arg = {0, };
-
-	arg.size = (__u32)size;
-	arg.flags = flags;/*currently no values for the flags,but it may be used in future extension*/
-	if (drmIoctl(bufmgr_vc4->fd, DRM_IOCTL_VC4_CREATE_BO, &arg)) {
-		TBM_ERR("Cannot create bo_vc4(flag:%x, size:%d)\n", arg.flags,
-			       (unsigned int)arg.size);
-		free(bo_vc4);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	bo_vc4->fd = bufmgr_vc4->fd;
-	bo_vc4->gem = (unsigned int)arg.handle;
-	bo_vc4->size = size;
-	bo_vc4->flags_tbm = flags;
-	bo_vc4->name = _get_name(bo_vc4->fd, bo_vc4->gem);
-
-	if (!_bo_init_cache_state(bufmgr_vc4, bo_vc4, 0)) {
-		TBM_ERR("fail init cache state(%d)\n", bo_vc4->name);
-		free(bo_vc4);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	pthread_mutex_init(&bo_vc4->mutex, NULL);
-
-	if (bufmgr_vc4->use_dma_fence && !bo_vc4->dmabuf) {
-		struct drm_prime_handle arg = {0, };
-
-		arg.handle = bo_vc4->gem;
-		if (drmIoctl(bo_vc4->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg)) {
-			TBM_ERR("Cannot dmabuf=%d\n", bo_vc4->gem);
-			free(bo_vc4);
-			if (error)
-				*error = TBM_ERROR_INVALID_OPERATION;
-			return NULL;
-		}
-		bo_vc4->dmabuf = arg.fd;
-	}
-
-	/* add bo_vc4 to hash */
-	if (drmHashInsert(bufmgr_vc4->hashBos, bo_vc4->name, (void *)bo_vc4) < 0)
-		TBM_ERR("Cannot insert bo_vc4 to Hash(%d)\n", bo_vc4->name);
-
-	TBM_DBG("     bo_vc4:%p, gem:%d(%d), flags:%d, size:%d\n",
-		bo_vc4,
-		bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->flags_tbm,
-		bo_vc4->size);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return (tbm_backend_bo_data *)bo_vc4;
-}
-
-static tbm_backend_bo_data *
-tbm_vc4_bufmgr_import_fd(tbm_backend_bufmgr_data *bufmgr_data, tbm_fd key, tbm_error_e *error)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	tbm_bo_vc4 bo_vc4;
-	unsigned int gem = 0;
-	unsigned int name;
-	int ret;
-	char buf[STRERR_BUFSIZE];
-
-	if (bufmgr_vc4 == 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_vc4->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &arg)) {
-		TBM_ERR("Cannot get gem handle from fd:%d (%s)\n",
-			       arg.fd, strerror_r(errno, buf, STRERR_BUFSIZE));
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-	gem = arg.handle;
-
-	name = _get_name(bufmgr_vc4->fd, gem);
-	if (!name) {
-		TBM_ERR("Cannot get name from gem:%d, fd:%d (%s)\n",
-			       gem, key, strerror_r(errno, buf, STRERR_BUFSIZE));
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	ret = drmHashLookup(bufmgr_vc4->hashBos, name, (void **)&bo_vc4);
-	if (ret == 0) {
-		if (gem == bo_vc4->gem) {
-			if (error)
-				*error = TBM_ERROR_NONE;
-			return bo_vc4;
-		}
-	}
-
-	/* Determine size of bo_vc4.  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).
-	 */
-	unsigned int real_size = -1;
-	struct drm_gem_open open_arg = {0, };
-
-	real_size = lseek(key, 0, SEEK_END);
-
-	open_arg.name = name;
-	if (drmIoctl(bufmgr_vc4->fd, DRM_IOCTL_GEM_OPEN, &open_arg)) {
-		TBM_ERR("Cannot get gem info from gem:%d, fd:%d (%s)\n",
-			       gem, key, strerror_r(errno, buf, STRERR_BUFSIZE));
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	/* Free gem handle to avoid a memory leak*/
-	struct drm_gem_close close_arg = {0, };
-	memset(&close_arg, 0, sizeof(close_arg));
-	close_arg.handle = open_arg.handle;
-	if (drmIoctl(bufmgr_vc4->fd, DRM_IOCTL_GEM_CLOSE, &close_arg)) {
-		TBM_ERR("Cannot close gem_handle.\n",
-			      strerror_r(errno, buf, STRERR_BUFSIZE));
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	if (real_size == -1)
-		real_size = open_arg.size;
-
-	bo_vc4 = calloc(1, sizeof(struct _tbm_bo_vc4));
-	if (!bo_vc4) {
-		TBM_ERR("bo_vc4:%p fail to allocate the bo_vc4\n", bo_vc4);
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-	bo_vc4->bufmgr_vc4 = bufmgr_vc4;
-
-	bo_vc4->fd = bufmgr_vc4->fd;
-	bo_vc4->gem = gem;
-	bo_vc4->size = real_size;
-	bo_vc4->name = name;
-	bo_vc4->flags_tbm = 0;
-
-#ifdef VC4_TILED_FORMAT
-	struct drm_vc4_get_tiling get_tiling = {
-		.handle = bo_vc4->gem,
-	};
-	drmIoctl(bo_vc4->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
-
-	if (get_tiling.modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED)
-		bo_vc4->flags_tbm |= TBM_BO_TILED;
-#endif
-
-	if (!_bo_init_cache_state(bufmgr_vc4, bo_vc4, 1)) {
-		TBM_ERR("fail init cache state(%d)\n", bo_vc4->name);
-		free(bo_vc4);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	/* add bo_vc4 to hash */
-	if (drmHashInsert(bufmgr_vc4->hashBos, bo_vc4->name, (void *)bo_vc4) < 0)
-		TBM_ERR("bo_vc4:%p Cannot insert bo_vc4 to Hash(%d) from gem:%d, fd:%d\n",
-			       bo_vc4, bo_vc4->name, gem, key);
-
-	TBM_DBG(" bo_vc4:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    key,
-	    bo_vc4->flags_tbm,
-	    bo_vc4->size);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return (tbm_backend_bo_data *)bo_vc4;
-}
-
-static tbm_backend_bo_data *
-tbm_vc4_bufmgr_import_key(tbm_backend_bufmgr_data *bufmgr_data, tbm_key key, tbm_error_e *error)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	tbm_bo_vc4 bo_vc4;
-	int ret;
-
-	if (bufmgr_vc4 == NULL) {
-		TBM_ERR("bufmgr_data is null\n");
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	ret = drmHashLookup(bufmgr_vc4->hashBos, key, (void **)&bo_vc4);
-	if (ret == 0) {
-		if (error)
-			*error = TBM_ERROR_NONE;
-		return (tbm_backend_bo_data *)bo_vc4;
-	}
-
-	struct drm_gem_open arg = {0, };
-
-	arg.name = key;
-	if (drmIoctl(bufmgr_vc4->fd, DRM_IOCTL_GEM_OPEN, &arg)) {
-		TBM_ERR("Cannot open gem name=%d\n", key);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	bo_vc4 = calloc(1, sizeof(struct _tbm_bo_vc4));
-	if (!bo_vc4) {
-		TBM_ERR("fail to allocate the bo_vc4 private\n");
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-	bo_vc4->bufmgr_vc4 = bufmgr_vc4;
-
-	bo_vc4->fd = bufmgr_vc4->fd;
-	bo_vc4->gem = arg.handle;
-	bo_vc4->size = arg.size;
-	bo_vc4->name = key;
-	bo_vc4->flags_tbm = 0;
-
-#ifdef VC4_TILED_FORMAT
-	struct drm_vc4_get_tiling get_tiling = {
-		.handle = bo_vc4->gem,
-	};
-	drmIoctl(bo_vc4->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
-
-	if (get_tiling.modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED)
-		bo_vc4->flags_tbm |= TBM_BO_TILED;
-#endif
-
-	if (!_bo_init_cache_state(bufmgr_vc4, bo_vc4, 1)) {
-		TBM_ERR("fail init cache state(%d)\n", bo_vc4->name);
-		free(bo_vc4);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return NULL;
-	}
-
-	if (!bo_vc4->dmabuf) {
-		struct drm_prime_handle arg = {0, };
-
-		arg.handle = bo_vc4->gem;
-		if (drmIoctl(bo_vc4->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg)) {
-			TBM_ERR("fail to DRM_IOCTL_PRIME_HANDLE_TO_FD gem=%d\n", bo_vc4->gem);
-			if (error)
-				*error = TBM_ERROR_INVALID_OPERATION;
-			free(bo_vc4);
-			return NULL;
-		}
-		bo_vc4->dmabuf = arg.fd;
-	}
-
-	/* add bo_vc4 to hash */
-	if (drmHashInsert(bufmgr_vc4->hashBos, bo_vc4->name, (void *)bo_vc4) < 0)
-		TBM_ERR("Cannot insert bo_vc4 to Hash(%d)\n", bo_vc4->name);
-
-	TBM_DBG("    bo_vc4:%p, gem:%d(%d), fd:%d, flags:%d, size:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    bo_vc4->flags_tbm,
-	    bo_vc4->size);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return (tbm_backend_bo_data *)bo_vc4;
-}
-
-static void
-tbm_vc4_bo_free(tbm_backend_bo_data *bo_data)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	tbm_bo_vc4 temp;
-	tbm_bufmgr_vc4 bufmgr_vc4;
-	char buf[STRERR_BUFSIZE];
-	int ret;
-
-	if (!bo_data)
-		return;
-
-	bufmgr_vc4 = bo_vc4->bufmgr_vc4;
-	if (!bufmgr_vc4)
-		return;
-
-	TBM_DBG("      bo_vc4:%p, gem:%d(%d), fd:%d, size:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    bo_vc4->size);
-
-	if (bo_vc4->pBase) {
-		if (munmap(bo_vc4->pBase, bo_vc4->size) == -1) {
-			TBM_ERR("bo_vc4:%p fail to munmap(%s)\n",
-				       bo_vc4, strerror_r(errno, buf, STRERR_BUFSIZE));
-		}
-	}
-
-	/* close dmabuf */
-	if (bo_vc4->dmabuf) {
-		close(bo_vc4->dmabuf);
-		bo_vc4->dmabuf = 0;
-	}
-
-	/* delete bo_vc4 from hash */
-	ret = drmHashLookup(bufmgr_vc4->hashBos, bo_vc4->name, (void **)&temp);
-	if (ret == 0)
-		drmHashDelete(bufmgr_vc4->hashBos, bo_vc4->name);
-	else
-		TBM_ERR("Cannot find bo_vc4 to Hash(%d), ret=%d\n", bo_vc4->name, ret);
-
-	if (temp != bo_vc4)
-		TBM_ERR("hashBos probably has several BOs with same name!!!\n");
-
-	_bo_destroy_cache_state(bufmgr_vc4, bo_vc4);
-
-	/* Free gem handle */
-	struct drm_gem_close arg = {0, };
-
-	memset(&arg, 0, sizeof(arg));
-	arg.handle = bo_vc4->gem;
-	if (drmIoctl(bo_vc4->fd, DRM_IOCTL_GEM_CLOSE, &arg))
-		TBM_ERR("bo_vc4:%p fail to gem close.(%s)\n",
-			       bo_vc4, strerror_r(errno, buf, STRERR_BUFSIZE));
-
-	free(bo_vc4);
-}
-
-static int
-tbm_vc4_bo_get_size(tbm_backend_bo_data *bo_data, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return 0;
-	}
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return bo_vc4->size;
-}
-
-static tbm_bo_memory_type
-tbm_vc4_bo_get_memory_type(tbm_backend_bo_data *bo_data, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return TBM_BO_DEFAULT;
-	}
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return bo_vc4->flags_tbm;
-}
-
-static tbm_bo_handle
-tbm_vc4_bo_get_handle(tbm_backend_bo_data *bo_data, tbm_bo_device_type device, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	tbm_bo_handle bo_handle;
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return (tbm_bo_handle) NULL;
-	}
-
-	if (!bo_vc4->gem) {
-		TBM_ERR("Cannot map gem=%d\n", bo_vc4->gem);
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return (tbm_bo_handle) NULL;
-	}
-
-	TBM_DBG("bo_vc4:%p, gem:%d(%d), fd:%d, flags:%d, size:%d, %s\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    bo_vc4->flags_tbm,
-	    bo_vc4->size,
-	    STR_DEVICE[device]);
-
-	/*Get mapped bo_handle*/
-	bo_handle = _vc4_bo_handle(bo_vc4, device);
-	if (bo_handle.ptr == NULL) {
-		TBM_ERR("Cannot get handle: gem:%d, device:%d\n",
-			bo_vc4->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_vc4_bo_map(tbm_backend_bo_data *bo_data, tbm_bo_device_type device,
-				tbm_bo_access_option opt, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	tbm_bo_handle bo_handle;
-	tbm_bufmgr_vc4 bufmgr_vc4;
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return (tbm_bo_handle) NULL;
-	}
-
-	bufmgr_vc4 = bo_vc4->bufmgr_vc4;
-	if (!bufmgr_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return (tbm_bo_handle) NULL;
-	}
-
-	if (!bo_vc4->gem) {
-		TBM_ERR("Cannot map gem=%d\n", bo_vc4->gem);
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return (tbm_bo_handle) NULL;
-	}
-
-	TBM_DBG("       bo_vc4:%p, gem:%d(%d), fd:%d, %s, %s\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    STR_DEVICE[device],
-	    STR_OPT[opt]);
-
-	/*Get mapped bo_handle*/
-	bo_handle = _vc4_bo_handle(bo_vc4, device);
-	if (bo_handle.ptr == NULL) {
-		TBM_ERR("Cannot get handle: gem:%d, device:%d, opt:%d\n",
-			       bo_vc4->gem, device, opt);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return (tbm_bo_handle) NULL;
-	}
-
-	if (bo_vc4->map_cnt == 0)
-		_bo_set_cache_state(bufmgr_vc4, bo_vc4, device, opt);
-
-	bo_vc4->last_map_device = device;
-
-	bo_vc4->map_cnt++;
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return bo_handle;
-}
-
-static tbm_error_e
-tbm_vc4_bo_unmap(tbm_backend_bo_data *bo_data)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	tbm_bufmgr_vc4 bufmgr_vc4;
-
-	if (!bo_vc4)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	bufmgr_vc4 = bo_vc4->bufmgr_vc4;
-	if (!bufmgr_vc4)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	if (!bo_vc4->gem)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	bo_vc4->map_cnt--;
-
-	if (bo_vc4->map_cnt == 0)
-		_bo_save_cache_state(bufmgr_vc4, bo_vc4);
-
-#ifdef ENABLE_CACHECRTL
-	if (bo_vc4->last_map_device == TBM_DEVICE_CPU)
-		_vc4_cache_flush(bufmgr_vc4, bo_vc4, TBM_VC4_CACHE_FLUSH_ALL);
-#endif
-
-	bo_vc4->last_map_device = -1;
-
-	TBM_DBG("     bo_vc4:%p, gem:%d(%d), fd:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf);
-
-	return TBM_ERROR_NONE;
-}
-
-static tbm_error_e
-tbm_vc4_bo_lock(tbm_backend_bo_data *bo_data, tbm_bo_device_type device,
-				tbm_bo_access_option opt)
-{
-#ifndef ALWAYS_BACKEND_CTRL
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	tbm_bufmgr_vc4 bufmgr_vc4;
-	struct dma_buf_fence fence;
-	struct flock filelock;
-	int ret = 0;
-	char buf[STRERR_BUFSIZE];
-
-	if (!bo_vc4)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	bufmgr_vc4 = bo_vc4->bufmgr_vc4;
-	if (!bufmgr_vc4)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	if (device != TBM_DEVICE_3D && device != TBM_DEVICE_CPU) {
-		TBM_DBG("Not support device type,\n");
-		return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	memset(&fence, 0, sizeof(struct dma_buf_fence));
-
-	/* Check if the given type is valid or not. */
-	if (opt & TBM_OPTION_WRITE) {
-		if (device == TBM_DEVICE_3D)
-			fence.type = DMA_BUF_ACCESS_WRITE | DMA_BUF_ACCESS_DMA;
-	} else if (opt & TBM_OPTION_READ) {
-		if (device == TBM_DEVICE_3D)
-			fence.type = DMA_BUF_ACCESS_READ | DMA_BUF_ACCESS_DMA;
-	} else {
-		TBM_ERR("Invalid argument\n");
-		return TBM_ERROR_INVALID_PARAMETER;
-	}
-
-	/* Check if the tbm manager supports dma fence or not. */
-	if (!bufmgr_vc4->use_dma_fence) {
-		TBM_ERR("Not support DMA FENCE(%s)\n", strerror_r(errno, buf, STRERR_BUFSIZE));
-		return TBM_ERROR_INVALID_OPERATION;
-
-	}
-
-	if (device == TBM_DEVICE_3D) {
-		ret = ioctl(bo_vc4->dmabuf, DMABUF_IOCTL_GET_FENCE, &fence);
-		if (ret < 0) {
-			TBM_ERR("Cannot set GET FENCE(%s)\n", strerror_r(errno, buf, STRERR_BUFSIZE));
-			return TBM_ERROR_INVALID_OPERATION;
-		}
-	} else {
-		if (opt & TBM_OPTION_WRITE)
-			filelock.l_type = F_WRLCK;
-		else
-			filelock.l_type = F_RDLCK;
-
-		filelock.l_whence = SEEK_CUR;
-		filelock.l_start = 0;
-		filelock.l_len = 0;
-
-		if (-1 == fcntl(bo_vc4->dmabuf, F_SETLKW, &filelock))
-			return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	pthread_mutex_lock(&bo_vc4->mutex);
-
-	if (device == TBM_DEVICE_3D) {
-		int i;
-
-		for (i = 0; i < DMA_FENCE_LIST_MAX; i++) {
-			if (bo_vc4->dma_fence[i].ctx == 0) {
-				bo_vc4->dma_fence[i].type = fence.type;
-				bo_vc4->dma_fence[i].ctx = fence.ctx;
-				break;
-			}
-		}
-
-		if (i == DMA_FENCE_LIST_MAX) {
-			/*TODO: if dma_fence list is full, it needs realloc. I will fix this. by minseok3.kim*/
-			TBM_ERR("fence list is full\n");
-		}
-	}
-
-	pthread_mutex_unlock(&bo_vc4->mutex);
-
-	TBM_DBG("DMABUF_IOCTL_GET_FENCE! bo_vc4:%p, gem:%d(%d), fd:%ds\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf);
-#endif /* ALWAYS_BACKEND_CTRL */
-
-	return TBM_ERROR_NONE;
-}
-
-static tbm_error_e
-tbm_vc4_bo_unlock(tbm_backend_bo_data *bo_data)
-{
-#ifndef ALWAYS_BACKEND_CTRL
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	struct dma_buf_fence fence;
-	struct flock filelock;
-	unsigned int dma_type = 0;
-	int ret = 0;
-	char buf[STRERR_BUFSIZE];
-
-	bufmgr_vc4 = bo_vc4->bufmgr_vc4;
-	if (!bufmgr_vc4)
-		return TBM_ERROR_INVALID_PARAMETER;
-
-	if (bo_vc4->dma_fence[0].type & DMA_BUF_ACCESS_DMA)
-		dma_type = 1;
-
-	if (!bo_vc4->dma_fence[0].ctx && dma_type) {
-		TBM_DBG("FENCE not support or ignored,\n");
-		return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	if (!bo_vc4->dma_fence[0].ctx && dma_type) {
-		TBM_DBG("device type is not 3D/CPU,\n");
-		return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	pthread_mutex_lock(&bo_vc4->mutex);
-
-	if (dma_type) {
-		fence.type = bo_vc4->dma_fence[0].type;
-		fence.ctx = bo_vc4->dma_fence[0].ctx;
-		int i;
-
-		for (i = 1; i < DMA_FENCE_LIST_MAX; i++) {
-			bo_vc4->dma_fence[i - 1].type = bo_vc4->dma_fence[i].type;
-			bo_vc4->dma_fence[i - 1].ctx = bo_vc4->dma_fence[i].ctx;
-		}
-		bo_vc4->dma_fence[DMA_FENCE_LIST_MAX - 1].type = 0;
-		bo_vc4->dma_fence[DMA_FENCE_LIST_MAX - 1].ctx = 0;
-	}
-
-	pthread_mutex_unlock(&bo_vc4->mutex);
-
-	if (dma_type) {
-		ret = ioctl(bo_vc4->dmabuf, DMABUF_IOCTL_PUT_FENCE, &fence);
-		if (ret < 0) {
-			TBM_ERR("Can not set PUT FENCE(%s)\n", strerror_r(errno, buf, STRERR_BUFSIZE));
-			return TBM_ERROR_INVALID_OPERATION;
-		}
-	} else {
-		filelock.l_type = F_UNLCK;
-		filelock.l_whence = SEEK_CUR;
-		filelock.l_start = 0;
-		filelock.l_len = 0;
-
-		if (-1 == fcntl(bo_vc4->dmabuf, F_SETLKW, &filelock))
-			return TBM_ERROR_INVALID_OPERATION;
-	}
-
-	TBM_DBG("DMABUF_IOCTL_PUT_FENCE! bo_vc4:%p, gem:%d(%d), fd:%ds\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf);
-#endif /* ALWAYS_BACKEND_CTRL */
-
-	return TBM_ERROR_NONE;
-}
-
-static tbm_fd
-tbm_vc4_bo_export_fd(tbm_backend_bo_data *bo_data, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-	int ret;
-	char buf[STRERR_BUFSIZE];
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return -1;
-	}
-
-	struct drm_prime_handle arg = {0, };
-
-	arg.handle = bo_vc4->gem;
-	ret = drmIoctl(bo_vc4->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg);
-	if (ret) {
-		TBM_ERR("bo_vc4:%p Cannot dmabuf=%d (%s)\n",
-			       bo_vc4, bo_vc4->gem, strerror_r(errno, buf, STRERR_BUFSIZE));
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		return (tbm_fd) ret;
-	}
-
-	TBM_DBG(" bo_vc4:%p, gem:%d(%d), fd:%d, key_fd:%d, flags:%d, size:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    arg.fd,
-	    bo_vc4->flags_tbm,
-	    bo_vc4->size);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return (tbm_fd)arg.fd;
-}
-
-static tbm_key
-tbm_vc4_bo_export_key(tbm_backend_bo_data *bo_data, tbm_error_e *error)
-{
-	tbm_bo_vc4 bo_vc4 = (tbm_bo_vc4)bo_data;
-
-	if (!bo_vc4) {
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return 0;
-	}
-
-	if (!bo_vc4->name) {
-		bo_vc4->name = _get_name(bo_vc4->fd, bo_vc4->gem);
-		if (!bo_vc4->name) {
-			TBM_ERR("error Cannot get name\n");
-			if (error)
-				*error = TBM_ERROR_INVALID_PARAMETER;
-			return 0;
-		}
-	}
-
-	TBM_DBG("    bo_vc4:%p, gem:%d(%d), fd:%d, flags:%d, size:%d\n",
-	    bo_vc4,
-	    bo_vc4->gem, bo_vc4->name,
-	    bo_vc4->dmabuf,
-	    bo_vc4->flags_tbm,
-	    bo_vc4->size);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	return (tbm_key)bo_vc4->name;
-}
-
-static void
-tbm_vc4_deinit(tbm_backend_bufmgr_data *bufmgr_data)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = (tbm_bufmgr_vc4)bufmgr_data;
-	tbm_bufmgr bufmgr;
-	tbm_error_e error;
-	unsigned long key;
-	void *value;
-
-	TBM_RETURN_IF_FAIL(bufmgr_vc4 != NULL);
-
-	bufmgr = bufmgr_vc4->bufmgr;
-
-	tbm_backend_bufmgr_free_bufmgr_func(bufmgr, bufmgr_vc4->bufmgr_func);
-	tbm_backend_bufmgr_free_bo_func(bufmgr, bufmgr_vc4->bo_func);
-
-	if (bufmgr_vc4->hashBos) {
-		while (drmHashFirst(bufmgr_vc4->hashBos, &key, &value) > 0) {
-			free(value);
-			drmHashDelete(bufmgr_vc4->hashBos, key);
-		}
-
-		drmHashDestroy(bufmgr_vc4->hashBos);
-		bufmgr_vc4->hashBos = NULL;
-	}
-
-	_bufmgr_deinit_cache_state(bufmgr_vc4);
-
-	if (bufmgr_vc4->bind_display)
-		tbm_drm_helper_wl_auth_server_deinit();
-
-	if (bufmgr_vc4->device_name)
-		free(bufmgr_vc4->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_vc4->fd);
-
-	free(bufmgr_vc4);
-}
-
-static tbm_backend_bufmgr_data *
-tbm_vc4_init(tbm_bufmgr bufmgr, tbm_error_e *error)
-{
-	tbm_bufmgr_vc4 bufmgr_vc4 = NULL;
-	tbm_backend_bufmgr_func *bufmgr_func = NULL;
-	tbm_backend_bo_func *bo_func = NULL;
-	int fp;
-	tbm_error_e err;
-	int set_master = 0;
-
-	if (!bufmgr) {
-		TBM_ERR("bufmgr is null.\n");
-		if (error)
-			*error = TBM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	bufmgr_vc4 = calloc(1, sizeof(struct _tbm_bufmgr_vc4));
-	if (!bufmgr_vc4) {
-		TBM_ERR("fail to alloc bufmgr_vc4!\n");
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-
-	/* check the master_fd which already had opened */
-	bufmgr_vc4->fd = tbm_drm_helper_get_master_fd();
-	if (bufmgr_vc4->fd < 0) {
-		bufmgr_vc4->fd = _tbm_vc4_open_drm();
-		if (bufmgr_vc4->fd < 0) {
-			TBM_ERR("fail to open drm!\n");
-			if (error)
-				*error = TBM_ERROR_INVALID_OPERATION;
-			goto fail_open_drm;
-		}
-		if (drmIsMaster(bufmgr_vc4->fd)) {
-			tbm_drm_helper_set_tbm_master_fd(bufmgr_vc4->fd);
-			set_master = 1;
-
-			bufmgr_vc4->device_name = drmGetDeviceNameFromFd(bufmgr_vc4->fd);
-			if (!bufmgr_vc4->device_name) {
-				TBM_ERR("fail to get device name!\n");
-				tbm_drm_helper_unset_tbm_master_fd();
-				if (error)
-					*error = TBM_ERROR_INVALID_OPERATION;
-				goto fail_get_device_name;
-			}
-			TBM_INFO("This is Master FD(%d) from open_drm.", bufmgr_vc4->fd);
-		} else {
-			/* close the fd and get the authenticated fd from the master fd */
-			close(bufmgr_vc4->fd);
-			bufmgr_vc4->fd = -1;
-
-			if (_check_render_node()) {
-				bufmgr_vc4->fd = _get_render_node();//TODO
-				if (bufmgr_vc4->fd < 0) {
-					TBM_ERR("fail to get render node\n");
-					if (error)
-						*error = TBM_ERROR_INVALID_OPERATION;
-					goto fail_get_render_node;
-				}
-				TBM_INFO("Use render node:%d\n", bufmgr_vc4->fd);
-			} else {
-				/* get the authenticated drm fd from the master fd */
-				if (!tbm_drm_helper_get_auth_info(&(bufmgr_vc4->fd), &(bufmgr_vc4->device_name), NULL)) {
-					TBM_ERR("fail to get auth drm info!\n");
-					if (error)
-						*error = TBM_ERROR_INVALID_OPERATION;
-					goto fail_get_auth_info;
-				}
-				TBM_INFO("This is Authenticated FD(%d)", bufmgr_vc4->fd);
-			}
-		}
-	} else {
-		bufmgr_vc4->device_name = drmGetDeviceNameFromFd(bufmgr_vc4->fd);
-		if (!bufmgr_vc4->device_name) {
-			TBM_ERR("fail to get device name!\n");
-			tbm_drm_helper_unset_tbm_master_fd();
-			if (error)
-				*error = TBM_ERROR_INVALID_OPERATION;
-			goto fail_get_device_name;
-		}
-		TBM_INFO("This is Master FD from tbm_drm_helper_get_master_fd(%d)", bufmgr_vc4->fd);
-	}
-	tbm_drm_helper_set_fd(bufmgr_vc4->fd);
-
-	//Check if the tbm manager supports dma fence or not.
-	fp = open("/sys/module/dmabuf_sync/parameters/enabled", O_RDONLY);
-	if (fp != -1) {
-		char buf[1];
-		int length = read(fp, buf, 1);
-
-		if (length == 1 && buf[0] == '1')
-			bufmgr_vc4->use_dma_fence = 1;
-
-		close(fp);
-	}
-
-	if (!_bufmgr_init_cache_state(bufmgr_vc4)) {
-		TBM_ERR("fail to init bufmgr cache state\n");
-		goto fail_init_cache_state;
-	}
-
-	/*Create Hash Table*/
-	bufmgr_vc4->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)\n", err);
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		goto fail_alloc_bufmgr_func;
-	}
-
-	bufmgr_func->bufmgr_get_capabilities = tbm_vc4_bufmgr_get_capabilities;
-	//if (tbm_backend_bufmgr_query_display_server(bufmgr, &err) && !_check_render_node())
-	bufmgr_func->bufmgr_bind_native_display = tbm_vc4_bufmgr_bind_native_display;
-	bufmgr_func->bufmgr_get_supported_formats = tbm_vc4_bufmgr_get_supported_formats;
-	bufmgr_func->bufmgr_get_plane_data = tbm_vc4_bufmgr_get_plane_data;
-	bufmgr_func->bufmgr_alloc_bo = tbm_vc4_bufmgr_alloc_bo;
-	bufmgr_func->bufmgr_alloc_bo_with_format = NULL;
-	bufmgr_func->bufmgr_import_fd = tbm_vc4_bufmgr_import_fd;
-	bufmgr_func->bufmgr_import_key = tbm_vc4_bufmgr_import_key;
-#ifdef VC4_TILED_FORMAT
-	bufmgr_func->bufmgr_alloc_bo_with_tiled_format =  tbm_vc4_bufmgr_alloc_bo_with_tiled_format;
-#else
-	bufmgr_func->bufmgr_alloc_bo_with_tiled_format = NULL;
-#endif
-	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_vc4->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)\n", err);
-		if (error)
-			*error = TBM_ERROR_OUT_OF_MEMORY;
-		goto fail_alloc_bo_func;
-	}
-
-	bo_func->bo_free = tbm_vc4_bo_free;
-	bo_func->bo_get_size = tbm_vc4_bo_get_size;
-	bo_func->bo_get_memory_types = tbm_vc4_bo_get_memory_type;
-	bo_func->bo_get_handle = tbm_vc4_bo_get_handle;
-	bo_func->bo_map = tbm_vc4_bo_map;
-	bo_func->bo_unmap = tbm_vc4_bo_unmap;
-	bo_func->bo_lock = tbm_vc4_bo_lock;
-	bo_func->bo_unlock = tbm_vc4_bo_unlock;
-	bo_func->bo_export_fd = tbm_vc4_bo_export_fd;
-	bo_func->bo_export_key = tbm_vc4_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)\n", err);
-		if (error)
-			*error = TBM_ERROR_INVALID_OPERATION;
-		goto fail_register_bo_func;
-	}
-	bufmgr_vc4->bo_func = bo_func;
-
-	TBM_DBG("drm_fd:%d\n", bufmgr_vc4->fd);
-
-	if (error)
-		*error = TBM_ERROR_NONE;
-
-	bufmgr_vc4->bufmgr = bufmgr;
-
-	return (tbm_backend_bufmgr_data *)bufmgr_vc4;
-
-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:
-	_bufmgr_deinit_cache_state(bufmgr_vc4);
-	if (bufmgr_vc4->hashBos)
-		drmHashDestroy(bufmgr_vc4->hashBos);
-fail_init_cache_state:
-	if (set_master)
-		tbm_drm_helper_unset_tbm_master_fd();
-	tbm_drm_helper_unset_fd();
-fail_get_device_name:
-	close(bufmgr_vc4->fd);
-fail_get_auth_info:
-fail_get_render_node:
-fail_open_drm:
-	free(bufmgr_vc4);
-	return NULL;
-}
-
-tbm_backend_module tbm_backend_module_data = {
-	"vc4",
-	"Samsung",
-	TBM_BACKEND_ABI_VERSION_3_0,
-	tbm_vc4_init,
-	tbm_vc4_deinit
-};
diff --git a/src/libhal-backend-tbm-vc4/tbm_backend_list.h b/src/tbm_backend_list.h
index 3873817..3873817 100644
--- a/src/libhal-backend-tbm-vc4/tbm_backend_list.h
+++ b/src/tbm_backend_list.h
diff --git a/src/libhal-backend-tbm-vc4/tbm_backend_log.c b/src/tbm_backend_log.c
index 5332287..5332287 100644
--- a/src/libhal-backend-tbm-vc4/tbm_backend_log.c
+++ b/src/tbm_backend_log.c
diff --git a/src/libhal-backend-tbm-vc4/tbm_backend_log.h b/src/tbm_backend_log.h
index ff60777..ff60777 100644
--- a/src/libhal-backend-tbm-vc4/tbm_backend_log.h
+++ b/src/tbm_backend_log.h
diff --git a/src/libhal-backend-tbm-vc4/tbm_backend_vc4.c b/src/tbm_backend_vc4.c
index 4465acb..4465acb 100644
--- a/src/libhal-backend-tbm-vc4/tbm_backend_vc4.c
+++ b/src/tbm_backend_vc4.c
diff --git a/src/libhal-backend-tbm-vc4/tbm_bufmgr_tgl.h b/src/tbm_bufmgr_tgl.h
index 3fe68b3..3fe68b3 100644
--- a/src/libhal-backend-tbm-vc4/tbm_bufmgr_tgl.h
+++ b/src/tbm_bufmgr_tgl.h