X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Ftbm_bufmgr.c;h=c752af0206575e04f1f2f1265d17ca6de258d52e;hb=00cbf704ad965ef35af07264be8cc6bcc7706466;hp=977e01e2d86458481d19c020622228c2569e6ac3;hpb=423e2ca9039ebcd08e9771ecec5889920f3617d9;p=platform%2Fcore%2Fuifw%2Flibtbm.git

diff --git a/src/tbm_bufmgr.c b/src/tbm_bufmgr.c
index 977e01e..c752af0 100644
--- a/src/tbm_bufmgr.c
+++ b/src/tbm_bufmgr.c
@@ -34,33 +34,34 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "tbm_bufmgr.h"
 #include "tbm_bufmgr_int.h"
 #include "tbm_bufmgr_backend.h"
-#include "tbm_bufmgr_tgl.h"
 #include "list.h"
 
-#define DEBUG
 #ifdef DEBUG
-int bDebug = 0;
-#define DBG(...) if (bDebug&0x1) TBM_LOG(__VA_ARGS__)
-#define DBG_LOCK(...) if (bDebug&0x2) TBM_LOG(__VA_ARGS__)
-#else
-#define DBG(...)
-#define DBG_LOCK(...)
+int bDebug;
 #endif
 
-#define PREFIX_LIB    "libtbm_"
-#define SUFFIX_LIB    ".so"
-#define DEFAULT_LIB   PREFIX_LIB"default"SUFFIX_LIB
+#ifdef TRACE
+int bTrace;
+#endif
 
-#define BO_IS_CACHEABLE(bo) ((bo->flags & TBM_BO_NONCACHABLE) ? 0 : 1)
-#define DEVICE_IS_CACHE_AWARE(device) ((device == TBM_DEVICE_CPU) ? (1) : (0))
+#ifdef HAVE_DLOG
+int bDlog;
+#endif
 
-/* tgl key values */
-#define GLOBAL_KEY   ((unsigned int)(-1))
-#define INITIAL_KEY  ((unsigned int)(-2))
+tbm_bufmgr gBufMgr;
+int b_dump_queue;
 
-#define CACHE_OP_CREATE     (-1)
-#define CACHE_OP_ATTACH     (-2)
-#define CACHE_OP_IMPORT     (-3)
+static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t tbm_bufmgr_lock = PTHREAD_MUTEX_INITIALIZER;
+static __thread tbm_error_e tbm_last_error = TBM_ERROR_NONE;
+
+static void _tbm_bufmgr_mutex_unlock(void);
+
+//#define TBM_BUFMGR_INIT_TIME
+
+#define PREFIX_LIB    "libtbm_"
+#define SUFFIX_LIB    ".so"
+#define DEFAULT_LIB   PREFIX_LIB"default"SUFFIX_LIB
 
 /* values to indicate unspecified fields in XF86ModReqInfo. */
 #define MAJOR_UNSPEC        0xFF
@@ -74,38 +75,127 @@ int bDebug = 0;
 #define GET_MODULE_MINOR_VERSION(vers)    (((vers) >> 16) & 0xFF)
 #define GET_MODULE_PATCHLEVEL(vers)    ((vers) & 0xFFFF)
 
+/* check condition */
+#define TBM_BUFMGR_RETURN_IF_FAIL(cond) {\
+	if (!(cond)) {\
+		TBM_LOG_E("'%s' failed.\n", #cond);\
+		_tbm_bufmgr_mutex_unlock();\
+		return;\
+	} \
+}
+
+#define TBM_BUFMGR_RETURN_VAL_IF_FAIL(cond, val) {\
+	if (!(cond)) {\
+		TBM_LOG_E("'%s' failed.\n", #cond);\
+		_tbm_bufmgr_mutex_unlock();\
+		return val;\
+	} \
+}
+
 enum {
 	LOCK_TRY_ONCE,
 	LOCK_TRY_ALWAYS,
 	LOCK_TRY_NEVER
 };
 
-enum {
-	DEVICE_NONE = 0,
-	DEVICE_CA,					/* cache aware device */
-	DEVICE_CO					/* cache oblivious device */
-};
+static void
+_tbm_set_last_result(tbm_error_e err)
+{
+	tbm_last_error = err;
+}
 
-typedef struct {
-	unsigned long key;
-	void *data;
-	tbm_data_free free_func;
+static bool
+_tbm_bufmgr_mutex_init(void)
+{
+	static bool tbm_bufmgr_mutex_init = false;
+
+	if (tbm_bufmgr_mutex_init)
+		return true;
 
-	/* link of user_data */
-	struct list_head item_link;
-} tbm_user_data;
+	if (pthread_mutex_init(&tbm_bufmgr_lock, NULL)) {
+		TBM_LOG_E("fail: tbm_bufmgr mutex init\n");
+		return false;
+	}
 
-pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
-tbm_bufmgr gBufMgr = NULL;
+	tbm_bufmgr_mutex_init = true;
 
-static __thread tbm_error_e tbm_last_error = TBM_ERROR_NONE;
+	return true;
+}
 
-static void _tbm_set_last_result(tbm_error_e err)
+static void
+_tbm_bufmgr_mutex_lock(void)
 {
-	tbm_last_error = err;
+	if (!_tbm_bufmgr_mutex_init())
+		return;
+
+	pthread_mutex_lock(&tbm_bufmgr_lock);
 }
 
-static void _tbm_util_get_appname_brief(char *brief)
+static void
+_tbm_bufmgr_mutex_unlock(void)
+{
+	pthread_mutex_unlock(&tbm_bufmgr_lock);
+}
+
+char * tbm_flag_to_str(int f)
+{
+	static char str[255];
+	int c = 0;
+	if (f == TBM_BO_DEFAULT)
+		 snprintf(str, 255, "DEFAULT\n");
+	else {
+		if (f & TBM_BO_SCANOUT)
+			c = snprintf(&str[c], 255, "SCANOUT,");
+		if (f & TBM_BO_NONCACHABLE)
+			c = snprintf(&str[c], 255, "NONCACHABLE,");
+		if (f & TBM_BO_WC)
+			c = snprintf(&str[c], 255, "WC");
+	}
+	return str;
+}
+
+/* LCOV_EXCL_START */
+static int last_chk_bo_cnt = 0;
+static void
+_tbm_util_check_bo_cnt(tbm_bufmgr bufmgr)
+{
+	if (bufmgr->bo_cnt >= 500 && ((bufmgr->bo_cnt % 20) == 0)) {
+		if (bufmgr->bo_cnt > last_chk_bo_cnt) {
+			TBM_DEBUG("============TBM BO CNT DEBUG: bo_cnt=%d\n", bufmgr->bo_cnt);
+			tbm_bufmgr_debug_show(bufmgr);
+			last_chk_bo_cnt = bufmgr->bo_cnt;
+		}
+	}
+}
+
+static int
+_tbm_util_get_max_surface_size(int * w, int * h)
+{
+	int count = 0;
+	tbm_surface_h surface = NULL, tmp = NULL;
+	tbm_surface_info_s info;
+
+	*w = 0;
+	*h = 0;
+
+	if (gBufMgr == NULL)
+		return count;
+
+	if (!LIST_IS_EMPTY(&gBufMgr->surf_list)) {
+		LIST_FOR_EACH_ENTRY_SAFE(surface, tmp, &gBufMgr->surf_list, item_link) {
+			if (tbm_surface_get_info(surface, &info) == TBM_SURFACE_ERROR_NONE) {
+				count++;
+				if (*w < info.width) *w = info.width;
+				if (*h < info.height) *h = info.height;
+			}
+		}
+	}
+
+	return count;
+}
+
+static void
+_tbm_util_get_appname_brief(char *brief)
 {
 	char delim[] = "/";
 	char *token = NULL;
@@ -115,17 +205,18 @@ static void _tbm_util_get_appname_brief(char *brief)
 	token = strtok_r(brief, delim, &saveptr);
 
 	while (token != NULL) {
-		memset(temp, 0x00, 255*sizeof(char));
-		strncpy(temp, token, 254*sizeof(char));
+		memset(temp, 0x00, 255 * sizeof(char));
+		strncpy(temp, token, 254 * sizeof(char));
 		token = strtok_r(NULL, delim, &saveptr);
 	}
 
 	snprintf(brief, sizeof(temp), "%s", temp);
 }
 
-static void _tbm_util_get_appname_from_pid(long pid, char *str)
+static void
+_tbm_util_get_appname_from_pid(long pid, char *str)
 {
-	FILE* fp;
+	FILE *fp;
 	int len;
 	long app_pid = pid;
 	char fn_cmdline[255] = {0,};
@@ -154,107 +245,10 @@ static void _tbm_util_get_appname_from_pid(long pid, char *str)
 
 	snprintf(str, sizeof(cmdline), "%s", cmdline);
 }
+/* LCOV_EXCL_STOP */
 
-static inline int _tgl_init(int fd, unsigned int key)
-{
-	struct tgl_attribute attr;
-	int err;
-
-	attr.key = key;
-	attr.timeout_ms = 1000;
-
-	err = ioctl(fd, TGL_IOC_INIT_LOCK, &attr);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int _tgl_destroy(int fd, unsigned int key)
-{
-	int err;
-	err = ioctl(fd, TGL_IOC_DESTROY_LOCK, key);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int _tgl_lock(int fd, unsigned int key)
-{
-	int err;
-	err = ioctl(fd, TGL_IOC_LOCK_LOCK, key);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int _tgl_unlock(int fd, unsigned int key)
-{
-	int err;
-	err = ioctl(fd, TGL_IOC_UNLOCK_LOCK, key);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int _tgl_set_data(int fd, unsigned int key, unsigned int val)
-{
-	int err;
-	struct tgl_user_data arg;
-
-	arg.key = key;
-	arg.data1 = val;
-	err = ioctl(fd, TGL_IOC_SET_DATA, &arg);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline unsigned int _tgl_get_data(int fd, unsigned int key, unsigned int *locked)
-{
-	int err;
-	struct tgl_user_data arg = { 0, };
-
-	arg.key = key;
-	err = ioctl(fd, TGL_IOC_GET_DATA, &arg);
-	if (err) {
-		TBM_LOG("[libtbm:%d] "
-			"error(%s) %s:%d key:%d\n",
-			getpid(), strerror(errno), __FUNCTION__, __LINE__, key);
-		return 0;
-	}
-
-	if (locked)
-		*locked = arg.locked;
-
-	return arg.data1;
-}
-
-static tbm_user_data *_user_data_lookup(struct list_head *user_data_list, unsigned long key)
+tbm_user_data
+*user_data_lookup(struct list_head *user_data_list, unsigned long key)
 {
 	tbm_user_data *user_data = NULL;
 	tbm_user_data *old_data = NULL, *tmp = NULL;
@@ -271,7 +265,8 @@ static tbm_user_data *_user_data_lookup(struct list_head *user_data_list, unsign
 	return user_data;
 }
 
-static tbm_user_data *_user_data_create(unsigned long key, tbm_data_free data_free_func)
+tbm_user_data
+*user_data_create(unsigned long key, tbm_data_free data_free_func)
 {
 	tbm_user_data *user_data = NULL;
 
@@ -286,7 +281,8 @@ static tbm_user_data *_user_data_create(unsigned long key, tbm_data_free data_fr
 	return user_data;
 }
 
-static void _user_data_delete(tbm_user_data * user_data)
+void
+user_data_delete(tbm_user_data *user_data)
 {
 	if (user_data->data && user_data->free_func)
 		user_data->free_func(user_data->data);
@@ -296,176 +292,31 @@ static void _user_data_delete(tbm_user_data * user_data)
 	free(user_data);
 }
 
-static int _bo_lock(tbm_bo bo, int device, int opt)
+static int
+_bo_lock(tbm_bo bo, int device, int opt)
 {
 	tbm_bufmgr bufmgr = bo->bufmgr;
 	int ret = 0;
 
-	if (TBM_LOCK_CTRL_BACKEND_VALID(bufmgr->backend->flags)) {
-		if (bufmgr->backend->bo_lock2) {
-			/* use bo_lock2 backend lock */
-			ret = bufmgr->backend->bo_lock2(bo, device, opt);
-		} else if (bufmgr->backend->bo_lock) {
-			/* use bo_lock backend lock */
-			ret = bufmgr->backend->bo_lock(bo);
-		} else {
-			TBM_LOG("[libtbm:%d] "
-				"error %s:%d no backend lock functions\n",
-				getpid(), __FUNCTION__, __LINE__);
-		}
-	} else {
-		/* use tizen global lock */
-		ret = _tgl_lock(bufmgr->lock_fd, bo->tgl_key);
-	}
+	if (bufmgr->backend->bo_lock)
+		ret = bufmgr->backend->bo_lock(bo, device, opt);
+	else
+		ret = 1;
 
 	return ret;
 }
 
-static void _bo_unlock(tbm_bo bo)
-{
-	tbm_bufmgr bufmgr = bo->bufmgr;
-
-	if (TBM_LOCK_CTRL_BACKEND_VALID(bufmgr->backend->flags)) {
-		if (bufmgr->backend->bo_unlock) {
-			/* use backend unlock */
-			bufmgr->backend->bo_unlock(bo);
-		} else {
-			TBM_LOG("[libtbm:%d] "
-				"error %s:%d no backend unlock functions\n",
-				getpid(), __FUNCTION__, __LINE__);
-		}
-	} else {
-		/* use tizen global unlock */
-		_tgl_unlock(bufmgr->lock_fd, bo->tgl_key);
-	}
-}
-
-static int _tbm_bo_init_state(tbm_bo bo, int opt)
-{
-	tbm_bufmgr bufmgr = bo->bufmgr;
-	tbm_bo_cache_state cache_state;
-
-	if (bo->tgl_key == INITIAL_KEY)
-		bo->tgl_key = bufmgr->backend->bo_get_global_key(bo);
-
-	if (!bo->default_handle.u32)
-		bo->default_handle = bufmgr->backend->bo_get_handle(bo, TBM_DEVICE_DEFAULT);
-
-	RETURN_VAL_CHECK_FLAG(TBM_ALL_CTRL_BACKEND_VALID(bufmgr->backend->flags), 1);
-
-	cache_state.val = 0;
-	switch (opt) {
-	case CACHE_OP_CREATE:		/*Create */
-
-		_tgl_init(bufmgr->lock_fd, bo->tgl_key);
-
-		cache_state.data.isCacheable = BO_IS_CACHEABLE(bo);
-		cache_state.data.isDirtied = DEVICE_NONE;
-		cache_state.data.isCached = 0;
-		cache_state.data.cntFlush = 0;
-
-		_tgl_set_data(bufmgr->lock_fd, bo->tgl_key, cache_state.val);
-		break;
-	case CACHE_OP_IMPORT:		/*Import */
-
-		_tgl_init(bufmgr->lock_fd, bo->tgl_key);
-		break;
-	default:
-		break;
-	}
-
-	return 1;
-}
-
-static void _tbm_bo_destroy_state(tbm_bo bo)
-{
-	tbm_bufmgr bufmgr = bo->bufmgr;
-
-	RETURN_CHECK_FLAG(TBM_ALL_CTRL_BACKEND_VALID(bufmgr->backend->flags));
-
-	_tgl_destroy(bufmgr->lock_fd, bo->tgl_key);
-}
-
-static int _tbm_bo_set_state(tbm_bo bo, int device, int opt)
-{
-	tbm_bufmgr bufmgr = bo->bufmgr;
-	char need_flush = 0;
-	unsigned short cntFlush = 0;
-	unsigned int is_locked;
-
-	RETURN_VAL_CHECK_FLAG(TBM_CACHE_CTRL_BACKEND_VALID(bufmgr->backend->flags), 1);
-
-	/* get cache state of a bo */
-	bo->cache_state.val = _tgl_get_data(bufmgr->lock_fd, bo->tgl_key, &is_locked);
-
-	if (!bo->cache_state.data.isCacheable)
-		return 1;
-
-	/* get global cache flush count */
-	cntFlush = (unsigned short)_tgl_get_data(bufmgr->lock_fd, GLOBAL_KEY, NULL);
-
-	if (DEVICE_IS_CACHE_AWARE(device)) {
-		if (bo->cache_state.data.isDirtied == DEVICE_CO &&
-			bo->cache_state.data.isCached)
-			need_flush = TBM_CACHE_INV;
-
-		bo->cache_state.data.isCached = 1;
-		if (opt & TBM_OPTION_WRITE)
-			bo->cache_state.data.isDirtied = DEVICE_CA;
-		else {
-			if (bo->cache_state.data.isDirtied != DEVICE_CA)
-				bo->cache_state.data.isDirtied = DEVICE_NONE;
-		}
-	} else {
-		if (bo->cache_state.data.isDirtied == DEVICE_CA &&
-			bo->cache_state.data.isCached &&
-			bo->cache_state.data.cntFlush == cntFlush)
-			need_flush = TBM_CACHE_CLN | TBM_CACHE_ALL;
-
-		if (opt & TBM_OPTION_WRITE)
-			bo->cache_state.data.isDirtied = DEVICE_CO;
-		else {
-			if (bo->cache_state.data.isDirtied != DEVICE_CO)
-				bo->cache_state.data.isDirtied = DEVICE_NONE;
-		}
-	}
-
-	if (need_flush) {
-		/* set global cache flush count */
-		if (need_flush & TBM_CACHE_ALL)
-			_tgl_set_data(bufmgr->lock_fd, GLOBAL_KEY, (unsigned int)(++cntFlush));
-
-		/* call backend cache flush */
-		bufmgr->backend->bo_cache_flush(bo, need_flush);
-
-		DBG("[libtbm:%d] \tcache(%d,%d,%d)....flush:0x%x, cntFlush(%d)\n",
-			getpid(),
-			bo->cache_state.data.isCacheable,
-			bo->cache_state.data.isCached,
-			bo->cache_state.data.isDirtied,
-			need_flush,
-			cntFlush);
-	}
-
-	return 1;
-}
-
-static void _tbm_bo_save_state(tbm_bo bo)
+static void
+_bo_unlock(tbm_bo bo)
 {
 	tbm_bufmgr bufmgr = bo->bufmgr;
-	unsigned short cntFlush = 0;
-
-	RETURN_CHECK_FLAG(TBM_CACHE_CTRL_BACKEND_VALID(bufmgr->backend->flags));
-
-	/* get global cache flush count */
-	cntFlush = (unsigned short)_tgl_get_data(bufmgr->lock_fd, GLOBAL_KEY, NULL);
 
-	/* save global cache flush count */
-	bo->cache_state.data.cntFlush = cntFlush;
-	_tgl_set_data(bufmgr->lock_fd, bo->tgl_key, bo->cache_state.val);
+	if (bufmgr->backend->bo_unlock)
+		bufmgr->backend->bo_unlock(bo);
 }
 
-static int _tbm_bo_lock(tbm_bo bo, int device, int opt)
+static int
+_tbm_bo_lock(tbm_bo bo, int device, int opt)
 {
 	tbm_bufmgr bufmgr = NULL;
 	int old;
@@ -481,40 +332,39 @@ static int _tbm_bo_lock(tbm_bo bo, int device, int opt)
 		return 1;
 
 	if (bo->lock_cnt < 0) {
-		TBM_LOG("[libtbm:%d] "
-			"error %s:%d bo:%p(%d) LOCK_CNT=%d\n",
-			getpid(), __FUNCTION__, __LINE__, bo, bo->tgl_key, bo->lock_cnt);
+		TBM_LOG_E("error bo:%p LOCK_CNT=%d\n",
+			bo, bo->lock_cnt);
 	}
 
 	old = bo->lock_cnt;
 	if (bufmgr->lock_type == LOCK_TRY_ONCE) {
 		if (bo->lock_cnt == 0) {
-			pthread_mutex_unlock(&bufmgr->lock);
+			_tbm_bufmgr_mutex_unlock();
 			ret = _bo_lock(bo, device, opt);
-			pthread_mutex_lock(&bufmgr->lock);
+			_tbm_bufmgr_mutex_lock();
 			if (ret)
 				bo->lock_cnt++;
 		} else
 			ret = 1;
 	} else if (bufmgr->lock_type == LOCK_TRY_ALWAYS) {
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		ret = _bo_lock(bo, device, opt);
-		pthread_mutex_lock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_lock();
 		if (ret)
 			bo->lock_cnt++;
 	} else {
-		TBM_LOG("[libtbm:%d] "
-			"error %s:%d bo:%p lock_type is wrong.\n",
-			getpid(), __FUNCTION__, __LINE__, bo);
+		TBM_LOG_E("error bo:%p lock_type is wrong.\n",
+			bo);
 	}
 
-	DBG_LOCK("[libtbm:%d] >> LOCK bo:%p(%d, %d->%d)\n", getpid(),
-				bo, bo->tgl_key, old, bo->lock_cnt);
+	TBM_DBG_LOCK(">> LOCK bo:%p(%d->%d)\n",
+		 bo, old, bo->lock_cnt);
 
 	return ret;
 }
 
-static void _tbm_bo_unlock(tbm_bo bo)
+static void
+_tbm_bo_unlock(tbm_bo bo)
 {
 	tbm_bufmgr bufmgr = NULL;
 
@@ -542,25 +392,30 @@ static void _tbm_bo_unlock(tbm_bo bo)
 			_bo_unlock(bo);
 		}
 	} else {
-		TBM_LOG("[libtbm:%d] "
-			"error %s:%d bo:%p lock_type is wrong.\n",
-			getpid(), __FUNCTION__, __LINE__, bo);
+		TBM_LOG_E("error bo:%p lock_type is wrong.\n",
+			bo);
 	}
 
 	if (bo->lock_cnt < 0)
 		bo->lock_cnt = 0;
 
-	DBG_LOCK("[libtbm:%d] << unlock bo:%p(%d, %d->%d)\n", getpid(),
-			bo, bo->tgl_key, old, bo->lock_cnt);
+	TBM_DBG_LOCK(">> UNLOCK bo:%p(%d->%d)\n",
+		 bo, old, bo->lock_cnt);
 }
 
-static int _tbm_bo_is_valid(tbm_bo bo)
+static int
+_tbm_bo_is_valid(tbm_bo bo)
 {
-	tbm_bo old_data = NULL, tmp = NULL;;
+	tbm_bo old_data = NULL, tmp = NULL;
 
 	if (bo == NULL)
 		return 0;
 
+	if (gBufMgr == NULL) {
+		TBM_LOG_E("error tbm_bufmgr was deinited\n");
+		return 0;
+	}
+
 	if (!LIST_IS_EMPTY(&gBufMgr->bo_list)) {
 		LIST_FOR_EACH_ENTRY_SAFE(old_data, tmp, &gBufMgr->bo_list, item_link) {
 			if (old_data == bo)
@@ -571,86 +426,9 @@ static int _tbm_bo_is_valid(tbm_bo bo)
 	return 0;
 }
 
-static void _tbm_bo_ref(tbm_bo bo)
-{
-	bo->ref_cnt++;
-}
-
-static void _tbm_bo_unref(tbm_bo bo)
-{
-	tbm_bufmgr bufmgr = bo->bufmgr;
-	tbm_user_data *old_data = NULL, *tmp = NULL;
-
-	if (bo->ref_cnt <= 0)
-		return;
-
-	bo->ref_cnt--;
-	if (bo->ref_cnt == 0) {
-		/* destory the user_data_list */
-		if (!LIST_IS_EMPTY(&bo->user_data_list)) {
-			LIST_FOR_EACH_ENTRY_SAFE(old_data, tmp, &bo->user_data_list, item_link) {
-				DBG("[libtbm:%d] free user_data \n",
-					getpid());
-				_user_data_delete(old_data);
-			}
-		}
-
-		if (bo->lock_cnt > 0) {
-			TBM_LOG("[libtbm:%d] "
-				"error %s:%d lock_cnt:%d\n",
-				getpid(), __FUNCTION__, __LINE__, bo->lock_cnt);
-			_bo_unlock(bo);
-		}
-
-		/* Destroy Global Lock */
-		_tbm_bo_destroy_state(bo);
-
-		/* call the bo_free */
-		bufmgr->backend->bo_free(bo);
-		bo->priv = NULL;
-
-		LIST_DEL(&bo->item_link);
-		free(bo);
-		bo = NULL;
-	}
-
-}
-
-static int _tbm_bufmgr_init_state(tbm_bufmgr bufmgr)
-{
-	RETURN_VAL_CHECK_FLAG(TBM_ALL_CTRL_BACKEND_VALID(bufmgr->backend->flags), 1);
-
-	bufmgr->lock_fd = open(tgl_devfile, O_RDWR);
-
-	if (bufmgr->lock_fd < 0) {
-		bufmgr->lock_fd = open(tgl_devfile1, O_RDWR);
-		if (bufmgr->lock_fd < 0) {
-
-			TBM_LOG("[libtbm:%d] "
-				"error: Fail to open global_lock:%s\n",
-				getpid(), tgl_devfile);
-			return 0;
-		}
-	}
-
-	if (!_tgl_init(bufmgr->lock_fd, GLOBAL_KEY)) {
-		TBM_LOG("[libtbm:%d] "
-			"error: Fail to initialize the tgl\n",
-			getpid());
-		return 0;
-	}
-
-	return 1;
-}
-
-static void _tbm_bufmgr_destroy_state(tbm_bufmgr bufmgr)
-{
-	RETURN_CHECK_FLAG(TBM_ALL_CTRL_BACKEND_VALID(bufmgr->backend->flags));
-
-	close(bufmgr->lock_fd);
-}
-
-static int _check_version(TBMModuleVersionInfo * data)
+/* LCOV_EXCL_START */
+static int
+_check_version(TBMModuleVersionInfo *data)
 {
 	int abimaj, abimin;
 	int vermaj, vermin;
@@ -658,33 +436,30 @@ static int _check_version(TBMModuleVersionInfo * data)
 	abimaj = GET_ABI_MAJOR(data->abiversion);
 	abimin = GET_ABI_MINOR(data->abiversion);
 
-	DBG("[libtbm:%d] "
-		"TBM module %s: vendor=\"%s\" ABI=%d,%d\n",
-		getpid(), data->modname ? data->modname : "UNKNOWN!",
-		data->vendor ? data->vendor : "UNKNOWN!", abimaj, abimin);
+	TBM_DBG("TBM module %s: vendor=\"%s\" ABI=%d,%d\n",
+	    data->modname ? data->modname : "UNKNOWN!",
+	    data->vendor ? data->vendor : "UNKNOWN!", abimaj, abimin);
 
 	vermaj = GET_ABI_MAJOR(TBM_ABI_VERSION);
 	vermin = GET_ABI_MINOR(TBM_ABI_VERSION);
 
-	DBG("[libtbm:%d] "
-		"TBM ABI version %d.%d\n",
-		getpid(), vermaj, vermin);
+	TBM_DBG("TBM ABI version %d.%d\n",
+	    vermaj, vermin);
 
 	if (abimaj != vermaj) {
-		TBM_LOG("[libtbm:%d] "
-			"TBM module ABI major ver(%d) doesn't match the TBM's ver(%d)\n",
-			getpid(), abimaj, vermaj);
+		TBM_LOG_E("TBM module ABI major ver(%d) doesn't match the TBM's ver(%d)\n",
+			abimaj, vermaj);
 		return 0;
 	} else if (abimin > vermin) {
-		TBM_LOG("[libtbm:%d] "
-			"TBM module ABI minor ver(%d) is newer than the TBM's ver(%d)\n",
-			getpid(), abimin, vermin);
+		TBM_LOG_E("TBM module ABI minor ver(%d) is newer than the TBM's ver(%d)\n",
+			abimin, vermin);
 		return 0;
 	}
 	return 1;
 }
 
-static int _tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
+static int
+_tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
 {
 	char path[PATH_MAX] = { 0, };
 	TBMModuleData *initdata = NULL;
@@ -694,9 +469,8 @@ static int _tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
 
 	module_data = dlopen(path, RTLD_LAZY);
 	if (!module_data) {
-		TBM_LOG("[libtbm:%d] "
-			"failed to load module: %s(%s)\n",
-			getpid(), dlerror(), file);
+		TBM_LOG_E("failed to load module: %s(%s)\n",
+			dlerror(), file);
 		return 0;
 	}
 
@@ -714,9 +488,7 @@ static int _tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
 				return 0;
 			}
 		} else {
-			TBM_LOG("[libtbm:%d] "
-				"Error: module does not supply version information.\n",
-				getpid());
+			TBM_LOG_E("Error: module does not supply version information.\n");
 
 			dlclose(module_data);
 			return 0;
@@ -724,45 +496,39 @@ static int _tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
 
 		if (init) {
 			if (!init(bufmgr, fd)) {
-				TBM_LOG("[libtbm:%d] "
-					"Fail to init module(%s)\n",
-					getpid(), file);
+				TBM_LOG_E("Fail to init module(%s)\n",
+					file);
 				dlclose(module_data);
 				return 0;
 			}
 
 			if (!bufmgr->backend || !bufmgr->backend->priv) {
-				TBM_LOG("[libtbm:%d] "
-					"Error: module(%s) wrong operation. Check backend or backend's priv.\n",
-					getpid(), file);
+				TBM_LOG_E("Error: module(%s) wrong operation. Check backend or backend's priv.\n",
+					file);
 				dlclose(module_data);
 				return 0;
 			}
 		} else {
-			TBM_LOG("[libtbm:%d] "
-				"Error: module does not supply init symbol.\n",
-				getpid());
+			TBM_LOG_E("Error: module does not supply init symbol.\n");
 			dlclose(module_data);
 			return 0;
 		}
 	} else {
-		TBM_LOG("[libtbm:%d] "
-			"Error: module does not have data object.\n",
-			getpid());
+		TBM_LOG_E("Error: module does not have data object.\n");
 		dlclose(module_data);
 		return 0;
 	}
 
 	bufmgr->module_data = module_data;
 
-	DBG("[libtbm:%d] "
-		"Success to load module(%s)\n",
-		getpid(), file);
+	TBM_DBG("Success to load module(%s)\n",
+	    file);
 
 	return 1;
 }
 
-static int _tbm_load_module(tbm_bufmgr bufmgr, int fd)
+static int
+_tbm_load_module(tbm_bufmgr bufmgr, int fd)
 {
 	struct dirent **namelist;
 	const char *p = NULL;
@@ -776,17 +542,14 @@ static int _tbm_load_module(tbm_bufmgr bufmgr, int fd)
 	if (!ret) {
 		n = scandir(BUFMGR_MODULE_DIR, &namelist, 0, alphasort);
 		if (n < 0) {
-			TBM_LOG("[libtbm:%d] "
-				"no files : %s\n",
-				getpid(), BUFMGR_MODULE_DIR);
+			TBM_LOG_E("no files : %s\n",
+				BUFMGR_MODULE_DIR);
 		} else {
 			while (n--) {
 				if (!ret && strstr(namelist[n]->d_name, PREFIX_LIB)) {
 					p = strstr(namelist[n]->d_name, SUFFIX_LIB);
-					if (p != NULL) {
-						if (!strcmp(p, SUFFIX_LIB))
-							ret = _tbm_bufmgr_load_module(bufmgr, fd, namelist[n]->d_name);
-					}
+					if (p && !strcmp(p, SUFFIX_LIB))
+						ret = _tbm_bufmgr_load_module(bufmgr, fd, namelist[n]->d_name);
 				}
 				free(namelist[n]);
 			}
@@ -796,156 +559,97 @@ static int _tbm_load_module(tbm_bufmgr bufmgr, int fd)
 
 	return ret;
 }
+/* LCOV_EXCL_STOP */
 
-tbm_bufmgr tbm_bufmgr_init(int fd)
+tbm_bufmgr
+tbm_bufmgr_init(int fd)
 {
 	char *env;
-	int fd_flag = 0;
-	int backend_flag = 0;
+
+#ifdef TBM_BUFMGR_INIT_TIME
+	struct timeval start_tv, end_tv;
+#endif
 
 	pthread_mutex_lock(&gLock);
 
+#ifdef TBM_BUFMGR_INIT_TIME
+	/* get the start tv */
+	gettimeofday(&start_tv, NULL);
+#endif
+
+	/* LCOV_EXCL_START */
+#ifdef HAVE_DLOG
+	env = getenv("TBM_DLOG");
+	if (env) {
+		bDlog = atoi(env);
+		TBM_LOG_D("TBM_DLOG=%s\n", env);
+	} else {
+		bDlog = 1;
+	}
+#endif
+
 #ifdef DEBUG
-	env = getenv("GEM_DEBUG");
+	env = getenv("TBM_DEBUG");
 	if (env) {
 		bDebug = atoi(env);
-		TBM_LOG("GEM_DEBUG=%s\n", env);
-	} else
+		TBM_LOG_D("TBM_DEBUG=%s\n", env);
+	} else {
 		bDebug = 0;
+	}
+#endif
+
+#ifdef TRACE
+	env = getenv("TBM_TRACE");
+	if (env) {
+		bTrace = atoi(env);
+		TBM_LOG_D("TBM_TRACE=%s\n", env);
+	} else {
+		bTrace = 0;
+	}
 #endif
+	/* LCOV_EXCL_STOP */
 
 	/* initialize buffer manager */
 	if (gBufMgr) {
-		DBG("[libtbm:%d] use previous gBufMgr\n", getpid());
-
-		if (fd >= 0) {
-			if (dup2(gBufMgr->fd, fd) < 0) {
-				_tbm_set_last_result(TBM_BO_ERROR_DUP_FD_FAILED);
-				DBG("[libtbm:%d] Fail to duplicate(dup2) the drm fd\n",
-					getpid());
-				pthread_mutex_unlock(&gLock);
-				return NULL;
-			}
-			DBG("[libtbm:%d] duplicate the drm_fd(%d), new drm_fd(%d).\n",
-				getpid(), gBufMgr->fd, fd);
-		}
 		gBufMgr->ref_count++;
-
-		DBG("[libtbm:%d] bufmgr ref: fd=%d, ref_count:%d\n",
-			getpid(), gBufMgr->fd, gBufMgr->ref_count);
+		TBM_TRACE("reuse  tbm_bufmgr(%p) ref_count(%d) fd(%d)\n", gBufMgr, gBufMgr->ref_count, gBufMgr->fd);
 		pthread_mutex_unlock(&gLock);
 		return gBufMgr;
 	}
 
-	if (fd < 0) {
-#ifdef HAVE_X11
-		fd = tbm_bufmgr_get_drm_fd_x11();
-#elif HAVE_WAYLAND
-		fd = tbm_bufmgr_get_drm_fd_wayland();
-#endif
-		if (fd < 0) {
-			_tbm_set_last_result(TBM_BO_ERROR_GET_FD_FAILED);
-			TBM_LOG("[libtbm:%d] Fail get drm fd\n",
-				getpid());
-			pthread_mutex_unlock(&gLock);
-			return NULL;
-		}
-		fd_flag = 1;
-	}
-
-	DBG("[libtbm:%d] bufmgr init: fd=%d\n", getpid(), fd);
+	TBM_DBG("bufmgr init\n");
 
 	/* allocate bufmgr */
 	gBufMgr = calloc(1, sizeof(struct _tbm_bufmgr));
 	if (!gBufMgr) {
 		_tbm_set_last_result(TBM_BO_ERROR_HEAP_ALLOC_FAILED);
-		if (fd_flag)
-			close(fd);
-
+		TBM_TRACE("error: fail to alloc bufmgr fd(%d)\n", fd);
 		pthread_mutex_unlock(&gLock);
 		return NULL;
 	}
 
-	gBufMgr->fd_flag = fd_flag;
-
-	if (fd_flag) {
-		gBufMgr->fd = fd;
-	} else {
-		gBufMgr->fd = dup(fd);
-		if (gBufMgr->fd < 0) {
-			_tbm_set_last_result(TBM_BO_ERROR_DUP_FD_FAILED);
-			TBM_LOG("[libtbm:%d] Fail to duplicate(dup) the drm fd\n",
-				getpid());
-			free(gBufMgr);
-			gBufMgr = NULL;
-			pthread_mutex_unlock(&gLock);
-			return NULL;
-		}
-		DBG("[libtbm:%d] duplicate the drm_fd(%d), bufmgr use fd(%d).\n",
-			getpid(), fd, gBufMgr->fd);
-	}
+	gBufMgr->fd = fd;
 
 	/* load bufmgr priv from env */
 	if (!_tbm_load_module(gBufMgr, gBufMgr->fd)) {
+		/* LCOV_EXCL_START */
 		_tbm_set_last_result(TBM_BO_ERROR_LOAD_MODULE_FAILED);
-		TBM_LOG("[libtbm:%d] " "error : Fail to load bufmgr backend\n", getpid());
-		close(gBufMgr->fd);
+		TBM_LOG_E("error : Fail to load bufmgr backend\n");
 		free(gBufMgr);
 		gBufMgr = NULL;
 		pthread_mutex_unlock(&gLock);
 		return NULL;
-	} else {
-		backend_flag = gBufMgr->backend->flags;
-		/* log for tbm backend_flag */
-		DBG("[libtbm:%d] ", getpid());
-		DBG("cache_crtl:");
-		if (backend_flag & TBM_CACHE_CTRL_BACKEND) {
-			DBG("BACKEND ");
-		} else {
-			DBG("TBM ");
-		}
-
-		DBG("lock_crtl:");
-		if (backend_flag & TBM_LOCK_CTRL_BACKEND) {
-			DBG("BACKEND ");
-		} else {
-			DBG("TBM ");
-		}
-
-		DBG("\n");
+		/* LCOV_EXCL_STOP */
 	}
 
-	gBufMgr->ref_count = 1;
-
-	DBG("[libtbm:%d] create tizen bufmgr: ref_count:%d\n",
-		getpid(), gBufMgr->ref_count);
+	/* log for tbm backend_flag */
+	TBM_DBG("backend flag:%x:", gBufMgr->backend->flags);
+	TBM_DBG("\n");
 
-	if (pthread_mutex_init(&gBufMgr->lock, NULL) != 0) {
-		_tbm_set_last_result(TBM_BO_ERROR_THREAD_INIT_FAILED);
-		gBufMgr->backend->bufmgr_deinit(gBufMgr->backend->priv);
-		tbm_backend_free(gBufMgr->backend);
-		dlclose(gBufMgr->module_data);
-		close(gBufMgr->fd);
-		free(gBufMgr);
-		gBufMgr = NULL;
-		pthread_mutex_unlock(&gLock);
-		return NULL;
-	}
+	gBufMgr->ref_count = 1;
 
-	/* intialize the tizen global status */
-	if (!_tbm_bufmgr_init_state(gBufMgr)) {
-		_tbm_set_last_result(TBM_BO_ERROR_INIT_STATE_FAILED);
-		TBM_LOG("[libtbm:%d] " "error: Fail to init state\n", getpid());
-		gBufMgr->backend->bufmgr_deinit(gBufMgr->backend->priv);
-		tbm_backend_free(gBufMgr->backend);
-		pthread_mutex_destroy(&gBufMgr->lock);
-		dlclose(gBufMgr->module_data);
-		close(gBufMgr->fd);
-		free(gBufMgr);
-		gBufMgr = NULL;
-		pthread_mutex_unlock(&gLock);
-		return NULL;
-	}
+	TBM_DBG("create tizen bufmgr:%p ref_count:%d\n",
+	    gBufMgr, gBufMgr->ref_count);
 
 	/* setup the lock_type */
 	env = getenv("BUFMGR_LOCK_TYPE");
@@ -958,17 +662,10 @@ tbm_bufmgr tbm_bufmgr_init(int fd)
 	else
 		gBufMgr->lock_type = LOCK_TRY_ALWAYS;
 
-	DBG("[libtbm:%d] BUFMGR_LOCK_TYPE=%s\n",
-		getpid(), env ? env : "default:once");
+	TBM_DBG("BUFMGR_LOCK_TYPE=%s\n",
+	    env ? env : "default:once");
 
-	/* setup the map_cache */
-	env = getenv("BUFMGR_MAP_CACHE");
-	if (env && !strcmp(env, "false"))
-		gBufMgr->use_map_cache = 0;
-	else
-		gBufMgr->use_map_cache = 1;
-	DBG("[libtbm:%d] BUFMGR_MAP_CACHE=%s\n",
-		getpid(), env ? env : "default:true");
+	TBM_TRACE("create tbm_bufmgr(%p) ref_count(%d) fd(%d)\n", gBufMgr, gBufMgr->ref_count, fd);
 
 	/* intialize bo_list */
 	LIST_INITHEAD(&gBufMgr->bo_list);
@@ -976,11 +673,25 @@ tbm_bufmgr tbm_bufmgr_init(int fd)
 	/* intialize surf_list */
 	LIST_INITHEAD(&gBufMgr->surf_list);
 
+	/* intialize surf_list */
+	LIST_INITHEAD(&gBufMgr->surf_queue_list);
+
+	/* intialize debug_key_list */
+	LIST_INITHEAD(&gBufMgr->debug_key_list);
+
+#ifdef TBM_BUFMGR_INIT_TIME
+	/* get the end tv */
+	gettimeofday(&end_tv, NULL);
+	TBM_LOG_I("tbm_bufmgr_init time: %ld ms", ((end_tv.tv_sec * 1000 + end_tv.tv_usec / 1000) - (start_tv.tv_sec * 1000 + start_tv.tv_usec / 1000)));
+#endif
+
 	pthread_mutex_unlock(&gLock);
+
 	return gBufMgr;
 }
 
-void tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
+void
+tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 {
 	TBM_RETURN_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr));
 
@@ -992,11 +703,15 @@ void tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 
 	pthread_mutex_lock(&gLock);
 
+	if (!gBufMgr) {
+		TBM_LOG_E("gBufmgr already destroy: bufmgr:%p\n", bufmgr);
+		pthread_mutex_unlock(&gLock);
+		return;
+	}
+
 	bufmgr->ref_count--;
 	if (bufmgr->ref_count > 0) {
-		TBM_LOG("[libtbm:%d] "
-			"tizen bufmgr destroy: bufmgr:%p, ref_count:%d\n",
-			getpid(), bufmgr, bufmgr->ref_count);
+		TBM_TRACE("reduce a ref_count(%d) of tbm_bufmgr(%p)\n", bufmgr->ref_count, bufmgr);
 		pthread_mutex_unlock(&gLock);
 		return;
 	}
@@ -1004,9 +719,8 @@ void tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 	/* destroy bo_list */
 	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
 		LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &bufmgr->bo_list, item_link) {
-			TBM_LOG("[libtbm:%d] "
-				"Un-freed bo(%p, ref:%d) \n",
-				getpid(), bo, bo->ref_cnt);
+			TBM_LOG_E("Un-freed bo(%p, ref:%d)\n",
+				bo, bo->ref_cnt);
 			bo->ref_cnt = 1;
 			tbm_bo_unref(bo);
 		}
@@ -1015,31 +729,24 @@ void tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 	/* destroy surf_list */
 	if (!LIST_IS_EMPTY(&bufmgr->surf_list)) {
 		LIST_FOR_EACH_ENTRY_SAFE(surf, tmp_surf, &bufmgr->surf_list, item_link) {
-			TBM_LOG("[libtbm:%d] "
-				"Destroy surf(%p) \n",
-				getpid(), surf);
+			TBM_LOG_E("Un-freed surf(%p, ref:%d)\n",
+				surf, surf->refcnt);
 			tbm_surface_destroy(surf);
 		}
 	}
 
-	/* destroy the tizen global status */
-	_tbm_bufmgr_destroy_state(bufmgr);
-
 	/* destroy bufmgr priv */
 	bufmgr->backend->bufmgr_deinit(bufmgr->backend->priv);
 	bufmgr->backend->priv = NULL;
 	tbm_backend_free(bufmgr->backend);
 	bufmgr->backend = NULL;
 
-	pthread_mutex_destroy(&bufmgr->lock);
-
-	DBG("[libtbm:%d] "
-		"tizen bufmgr destroy: bufmgr:%p\n",
-		getpid(), bufmgr);
+	TBM_TRACE("destroy tbm_bufmgr(%p)\n", bufmgr);
 
 	dlclose(bufmgr->module_data);
 
-	close(bufmgr->fd);
+	if (bufmgr->fd > 0)
+		close(bufmgr->fd);
 
 	free(bufmgr);
 	bufmgr = NULL;
@@ -1048,606 +755,786 @@ void tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 	pthread_mutex_unlock(&gLock);
 }
 
-int tbm_bo_size(tbm_bo bo)
+int
+tbm_bo_size(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
-	tbm_bufmgr bufmgr = bo->bufmgr;
+	tbm_bufmgr bufmgr = NULL;
 	int size;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
+	bufmgr = gBufMgr;
 
 	size = bufmgr->backend->bo_size(bo);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	TBM_TRACE("bo(%p) size(%d)\n", bo, size);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return size;
 }
 
-tbm_bo tbm_bo_ref(tbm_bo bo)
+tbm_bo
+tbm_bo_ref(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), NULL);
+	_tbm_bufmgr_mutex_lock();
 
-	tbm_bufmgr bufmgr = bo->bufmgr;
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), NULL);
 
-	pthread_mutex_lock(&bufmgr->lock);
+	bo->ref_cnt++;
 
-	_tbm_bo_ref(bo);
+	TBM_TRACE("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo;
 }
 
-void tbm_bo_unref(tbm_bo bo)
+void
+tbm_bo_unref(tbm_bo bo)
 {
-	TBM_RETURN_IF_FAIL(_tbm_bo_is_valid(bo));
+	tbm_bufmgr bufmgr = NULL;
+	tbm_user_data *old_data = NULL, *tmp = NULL;
 
-	tbm_bufmgr bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_IF_FAIL(gBufMgr);
+	TBM_BUFMGR_RETURN_IF_FAIL(_tbm_bo_is_valid(bo));
+
+	bufmgr = gBufMgr;
+
+	TBM_TRACE("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt - 1);
+
+	if (bo->ref_cnt <= 0) {
+		_tbm_bufmgr_mutex_unlock();
+		return;
+	}
+
+	bo->ref_cnt--;
+	if (bo->ref_cnt == 0) {
+		/* destory the user_data_list */
+		if (!LIST_IS_EMPTY(&bo->user_data_list)) {
+			LIST_FOR_EACH_ENTRY_SAFE(old_data, tmp, &bo->user_data_list, item_link) {
+				TBM_DBG("free user_data\n");
+				user_data_delete(old_data);
+			}
+		}
+
+		if (bo->lock_cnt > 0) {
+			TBM_LOG_E("error lock_cnt:%d\n",
+				bo->lock_cnt);
+			_bo_unlock(bo);
+		}
+
+		/* call the bo_free */
+		bufmgr->backend->bo_free(bo);
+		bo->priv = NULL;
 
-	pthread_mutex_lock(&bufmgr->lock);
+		LIST_DEL(&bo->item_link);
+		free(bo);
 
-	_tbm_bo_unref(bo);
+		bufmgr->bo_cnt--;
+	}
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 }
 
-tbm_bo tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
+tbm_bo
+tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr) && (size > 0), NULL);
-
 	tbm_bo bo = NULL;
 	void *bo_priv = NULL;
 
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(size > 0, NULL);
+
 	bo = calloc(1, sizeof(struct _tbm_bo));
 	if (!bo) {
+		TBM_TRACE("error: fail to create of tbm_bo size(%d) flag(%s)\n", size, tbm_flag_to_str(flags));
 		_tbm_set_last_result(TBM_BO_ERROR_HEAP_ALLOC_FAILED);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
-	bo->bufmgr = bufmgr;
+	_tbm_util_check_bo_cnt(bufmgr);
+	bufmgr->bo_cnt++;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	bo->bufmgr = bufmgr;
 
 	bo_priv = bufmgr->backend->bo_alloc(bo, size, flags);
 	if (!bo_priv) {
+		TBM_TRACE("error: fail to create of tbm_bo size(%d) flag(%s)\n", size, tbm_flag_to_str(flags));
 		_tbm_set_last_result(TBM_BO_ERROR_BO_ALLOC_FAILED);
 		free(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
 	bo->ref_cnt = 1;
 	bo->flags = flags;
-	bo->tgl_key = INITIAL_KEY;
 	bo->priv = bo_priv;
-	bo->default_handle.u32 = 0;
 
-	/* init bo state */
-	if (!_tbm_bo_init_state(bo, CACHE_OP_CREATE)) {
-		_tbm_set_last_result(TBM_BO_ERROR_INIT_STATE_FAILED);
-		_tbm_bo_unref(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
-		return NULL;
-	}
+	TBM_TRACE("bo(%p) size(%d) refcnt(%d), flag(%s)\n", bo, size, bo->ref_cnt, tbm_flag_to_str(bo->flags));
 
 	LIST_INITHEAD(&bo->user_data_list);
 
 	LIST_ADD(&bo->item_link, &bufmgr->bo_list);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo;
 }
 
-tbm_bo tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
+tbm_bo
+tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
-
 	tbm_bo bo = NULL;
 	tbm_bo bo2 = NULL;
 	tbm_bo tmp = NULL;
 	void *bo_priv = NULL;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_lock();
 
-	/* find bo in list */
-	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
-			if (bo2->tgl_key == key) {
-				DBG("[libtbm:%d] "
-					"find bo(%p, ref:%d key:%d) in list \n",
-					getpid(), bo2, bo2->ref_cnt, bo2->tgl_key);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, NULL);
 
-				bo2->ref_cnt++;
-				pthread_mutex_unlock(&bufmgr->lock);
-				return bo2;
-			}
-		}
+	if (!bufmgr->backend->bo_import) {
+		_tbm_bufmgr_mutex_unlock();
+		return NULL;
 	}
 
+	_tbm_util_check_bo_cnt(bufmgr);
+
 	bo = calloc(1, sizeof(struct _tbm_bo));
 	if (!bo) {
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: fail to import of tbm_bo by key(%d)\n", key);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
+	bufmgr->bo_cnt++;
+
 	bo->bufmgr = bufmgr;
 
 	bo_priv = bufmgr->backend->bo_import(bo, key);
 	if (!bo_priv) {
+		TBM_TRACE("error: fail to import of tbm_bo by key(%d)\n", key);
 		_tbm_set_last_result(TBM_BO_ERROR_IMPORT_FAILED);
 		free(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
+	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
+		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
+			if (bo2->priv == bo_priv) {
+				TBM_TRACE("find bo(%p) ref(%d) key(%d) flag(%s) in list\n",
+							bo2, bo2->ref_cnt, key, tbm_flag_to_str(bo2->flags));
+				bo2->ref_cnt++;
+				free(bo);
+				_tbm_bufmgr_mutex_unlock();
+				return bo2;
+			}
+		}
+	}
+
 	bo->ref_cnt = 1;
-	bo->tgl_key = INITIAL_KEY;
 	bo->priv = bo_priv;
-	bo->default_handle.u32 = 0;
 
 	if (bufmgr->backend->bo_get_flags)
 		bo->flags = bufmgr->backend->bo_get_flags(bo);
 	else
 		bo->flags = TBM_BO_DEFAULT;
 
-	/* init bo state */
-	if (!_tbm_bo_init_state(bo, CACHE_OP_IMPORT)) {
-		_tbm_set_last_result(TBM_BO_ERROR_INIT_STATE_FAILED);
-		_tbm_bo_unref(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
-		return NULL;
-	}
+	TBM_TRACE("import new bo(%p) ref(%d) key(%d) flag(%s) in list\n",
+			  bo, bo->ref_cnt, key, tbm_flag_to_str(bo->flags));
 
 	LIST_INITHEAD(&bo->user_data_list);
 
 	LIST_ADD(&bo->item_link, &bufmgr->bo_list);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo;
 }
 
-tbm_bo tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
+tbm_bo
+tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
-
 	tbm_bo bo = NULL;
 	tbm_bo bo2 = NULL;
 	tbm_bo tmp = NULL;
 	void *bo_priv = NULL;
-	tbm_bo_handle default_handle;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_lock();
 
-	default_handle = bufmgr->backend->fd_to_handle(bufmgr, fd, TBM_DEVICE_DEFAULT);
-
-	/* find bo in list */
-	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
-			if (bo2->default_handle.u32 == default_handle.u32) {
-				DBG("[libtbm:%d] "
-					"find bo(%p, ref:%d handle:%d) in list \n",
-					getpid(), bo2, bo2->ref_cnt, bo2->default_handle.u32);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, NULL);
 
-				bo2->ref_cnt++;
-				pthread_mutex_unlock(&bufmgr->lock);
-				return bo2;
-			}
-		}
+	if (!bufmgr->backend->bo_import_fd) {
+		_tbm_bufmgr_mutex_unlock();
+		return NULL;
 	}
 
+	_tbm_util_check_bo_cnt(bufmgr);
+
 	bo = calloc(1, sizeof(struct _tbm_bo));
 	if (!bo) {
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
+	bufmgr->bo_cnt++;
+
 	bo->bufmgr = bufmgr;
 
 	bo_priv = bufmgr->backend->bo_import_fd(bo, fd);
 	if (!bo_priv) {
+		TBM_TRACE("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
 		_tbm_set_last_result(TBM_BO_ERROR_IMPORT_FD_FAILED);
 		free(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
 	}
 
+	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
+		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
+			if (bo2->priv == bo_priv) {
+				TBM_TRACE("find bo(%p) ref(%d) fd(%d) flag(%s) in list\n",
+							bo2, bo2->ref_cnt, fd, tbm_flag_to_str(bo2->flags));
+				bo2->ref_cnt++;
+				free(bo);
+				_tbm_bufmgr_mutex_unlock();
+				return bo2;
+			}
+		}
+	}
+
 	bo->ref_cnt = 1;
-	bo->tgl_key = INITIAL_KEY;
 	bo->priv = bo_priv;
-	bo->default_handle.u32 = 0;
 
 	if (bufmgr->backend->bo_get_flags)
 		bo->flags = bufmgr->backend->bo_get_flags(bo);
 	else
 		bo->flags = TBM_BO_DEFAULT;
 
-	/* init bo state */
-	if (!_tbm_bo_init_state(bo, CACHE_OP_IMPORT)) {
-		_tbm_set_last_result(TBM_BO_ERROR_INIT_STATE_FAILED);
-		_tbm_bo_unref(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
-		return NULL;
-	}
+	TBM_TRACE("import bo(%p) ref(%d) fd(%d) flag(%s)in list\n",
+				bo, bo->ref_cnt, fd, tbm_flag_to_str(bo->flags));
 
 	LIST_INITHEAD(&bo->user_data_list);
 
 	LIST_ADD(&bo->item_link, &bufmgr->bo_list);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo;
 }
 
-unsigned int tbm_bo_export(tbm_bo bo)
+tbm_key
+tbm_bo_export(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+	tbm_bufmgr bufmgr = NULL;
+	tbm_key ret;
 
-	tbm_bufmgr bufmgr;
-	int ret;
+	_tbm_bufmgr_mutex_lock();
 
-	bufmgr = bo->bufmgr;
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
+	bufmgr = gBufMgr;
+
+	if (!bufmgr->backend->bo_export) {
+		_tbm_bufmgr_mutex_unlock();
+		return 0;
+	}
 
-	pthread_mutex_lock(&bufmgr->lock);
 	ret = bufmgr->backend->bo_export(bo);
 	if (!ret) {
 		_tbm_set_last_result(TBM_BO_ERROR_EXPORT_FAILED);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: bo(%p) tbm_key(%d)\n", bo, ret);
+		_tbm_bufmgr_mutex_unlock();
 		return ret;
 	}
-	pthread_mutex_unlock(&bufmgr->lock);
+
+	TBM_TRACE("bo(%p) tbm_key(%d)\n", bo, ret);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
 
-tbm_fd tbm_bo_export_fd(tbm_bo bo)
+tbm_fd
+tbm_bo_export_fd(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), -1);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = NULL;
 	int ret;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), -1);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), -1);
+
+	bufmgr = gBufMgr;
+
+	if (!bufmgr->backend->bo_export_fd) {
+		_tbm_bufmgr_mutex_unlock();
+		return -1;
+	}
 
-	pthread_mutex_lock(&bufmgr->lock);
 	ret = bufmgr->backend->bo_export_fd(bo);
 	if (ret < 0) {
 		_tbm_set_last_result(TBM_BO_ERROR_EXPORT_FD_FAILED);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: bo(%p) tbm_fd(%d)\n", bo, ret);
+		_tbm_bufmgr_mutex_unlock();
 		return ret;
 	}
-	pthread_mutex_unlock(&bufmgr->lock);
+
+	TBM_TRACE("bo(%p) tbm_fd(%d)\n", bo, ret);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
 
-tbm_bo_handle tbm_bo_get_handle(tbm_bo bo, int device)
+tbm_bo_handle
+tbm_bo_get_handle(tbm_bo bo, int device)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) 0);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = NULL;
 	tbm_bo_handle bo_handle;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), (tbm_bo_handle) NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) NULL);
+
+	bufmgr = gBufMgr;
 
-	pthread_mutex_lock(&bufmgr->lock);
 	bo_handle = bufmgr->backend->bo_get_handle(bo, device);
 	if (bo_handle.ptr == NULL) {
 		_tbm_set_last_result(TBM_BO_ERROR_GET_HANDLE_FAILED);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
+		_tbm_bufmgr_mutex_unlock();
 		return (tbm_bo_handle) NULL;
 	}
-	pthread_mutex_unlock(&bufmgr->lock);
+
+	TBM_TRACE("bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo_handle;
 }
 
-tbm_bo_handle tbm_bo_map(tbm_bo bo, int device, int opt)
+tbm_bo_handle
+tbm_bo_map(tbm_bo bo, int device, int opt)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) 0);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = NULL;
 	tbm_bo_handle bo_handle;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
 
-	pthread_mutex_lock(&bufmgr->lock);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), (tbm_bo_handle) NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) NULL);
 
-	bo_handle = bufmgr->backend->bo_get_handle(bo, device);
+	bufmgr = gBufMgr;
 
 	if (!_tbm_bo_lock(bo, device, opt)) {
 		_tbm_set_last_result(TBM_BO_ERROR_LOCK_FAILED);
-		TBM_LOG("[libtbm:%d] "
-			"error %s:%d fail to lock bo:%p)\n",
-			getpid(), __FUNCTION__, __LINE__, bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: fail to lock bo:%p)\n", bo);
+		_tbm_bufmgr_mutex_unlock();
 		return (tbm_bo_handle) NULL;
 	}
 
 	bo_handle = bufmgr->backend->bo_map(bo, device, opt);
 	if (bo_handle.ptr == NULL) {
 		_tbm_set_last_result(TBM_BO_ERROR_MAP_FAILED);
-		TBM_LOG("[libtbm:%d] "
-			"error %s:%d fail to map bo:%p\n",
-			getpid(), __FUNCTION__, __LINE__, bo);
-
+		TBM_TRACE("error: fail to map bo:%p\n", bo);
 		_tbm_bo_unlock(bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return (tbm_bo_handle) NULL;
 	}
 
-	if (bufmgr->use_map_cache == 1 && bo->map_cnt == 0)
-		_tbm_bo_set_state(bo, device, opt);
-
 	/* increase the map_count */
 	bo->map_cnt++;
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	TBM_TRACE("bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo_handle;
 }
 
-int tbm_bo_unmap(tbm_bo bo)
+int
+tbm_bo_unmap(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = NULL;
 	int ret;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
-	pthread_mutex_lock(&bufmgr->lock);
+	bufmgr = gBufMgr;
 
 	ret = bufmgr->backend->bo_unmap(bo);
 	if (!ret) {
-
+		TBM_TRACE("error: bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
 		_tbm_set_last_result(TBM_BO_ERROR_UNMAP_FAILED);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return ret;
 	}
 
 	/* decrease the map_count */
 	bo->map_cnt--;
 
-	if (bo->map_cnt == 0)
-		_tbm_bo_save_state(bo);
+	TBM_TRACE("bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
 
 	_tbm_bo_unlock(bo);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
 
-int tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
+int
+tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo1), 0);
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo2), 0);
-
+	tbm_bufmgr bufmgr = NULL;
 	void *temp;
-	unsigned int tmp_key;
-	tbm_bo_handle tmp_defualt_handle;
 
-	pthread_mutex_lock(&bo1->bufmgr->lock);
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo1), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo2), 0);
+
+	bufmgr = gBufMgr;
+
+	TBM_TRACE("before: bo1(%p) bo2(%p)\n", bo1, bo2);
 
-	if (bo1->bufmgr->backend->bo_size(bo1) != bo2->bufmgr->backend->bo_size(bo2)) {
+	if (bufmgr->backend->bo_size(bo1) != bufmgr->backend->bo_size(bo2)) {
 		_tbm_set_last_result(TBM_BO_ERROR_SWAP_FAILED);
-		pthread_mutex_unlock(&bo1->bufmgr->lock);
+		TBM_TRACE("error: bo1(%p) bo2(%p)\n", bo1, bo2);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
-	tmp_key = bo1->tgl_key;
-	bo1->tgl_key = bo2->tgl_key;
-	bo2->tgl_key = tmp_key;
-
-	tmp_defualt_handle = bo1->default_handle;
-	bo1->default_handle = bo2->default_handle;
-	bo2->default_handle = tmp_defualt_handle;
+	TBM_TRACE("after: bo1(%p) bo2(%p)\n", bo1, bo2);
 
 	temp = bo1->priv;
 	bo1->priv = bo2->priv;
 	bo2->priv = temp;
 
-	pthread_mutex_unlock(&bo1->bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return 1;
 }
 
-int tbm_bo_locked(tbm_bo bo)
+int
+tbm_bo_locked(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+	tbm_bufmgr bufmgr = NULL;
 
-	tbm_bufmgr bufmgr;
+	_tbm_bufmgr_mutex_lock();
 
-	bufmgr = bo->bufmgr;
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
-	if (bufmgr->lock_type == LOCK_TRY_NEVER)
-		return 0;
+	bufmgr = gBufMgr;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	if (bufmgr->lock_type == LOCK_TRY_NEVER) {
+		TBM_TRACE("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
+		_tbm_bufmgr_mutex_unlock();
+		return 0;
+	}
 
 	if (bo->lock_cnt > 0) {
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("error: bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
+		_tbm_bufmgr_mutex_unlock();
 		return 1;
 	}
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	TBM_TRACE("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
+	_tbm_bufmgr_mutex_unlock();
 
 	return 0;
 }
 
-int tbm_bo_add_user_data(tbm_bo bo, unsigned long key, tbm_data_free data_free_func)
+int
+tbm_bo_add_user_data(tbm_bo bo, unsigned long key,
+		     tbm_data_free data_free_func)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *data;
 
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
 	/* check if the data according to the key exist if so, return false. */
-	data = _user_data_lookup(&bo->user_data_list, key);
+	data = user_data_lookup(&bo->user_data_list, key);
 	if (data) {
-		TBM_LOG("[libtbm:%d] "
-			"waring: %s:%d user data already exist. key:%ld\n",
-			getpid(), __FUNCTION__, __LINE__, key);
+		TBM_TRACE("warning: user data already exist key(%ld)\n", key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
-	data = _user_data_create(key, data_free_func);
-	if (!data)
+	data = user_data_create(key, data_free_func);
+	if (!data) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
+
+	TBM_TRACE("bo(%p) key(%lu) data(%p)\n", bo, key, data->data);
 
 	LIST_ADD(&data->item_link, &bo->user_data_list);
 
+	_tbm_bufmgr_mutex_unlock();
+
 	return 1;
 }
 
-int tbm_bo_set_user_data(tbm_bo bo, unsigned long key, void *data)
+int
+tbm_bo_set_user_data(tbm_bo bo, unsigned long key, void *data)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *old_data;
 
-	if (LIST_IS_EMPTY(&bo->user_data_list))
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
+	if (LIST_IS_EMPTY(&bo->user_data_list)) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
 
-	old_data = _user_data_lookup(&bo->user_data_list, key);
-	if (!old_data)
+	old_data = user_data_lookup(&bo->user_data_list, key);
+	if (!old_data) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
 
 	if (old_data->data && old_data->free_func)
 		old_data->free_func(old_data->data);
 
 	old_data->data = data;
 
+	TBM_TRACE("bo(%p) key(%lu) data(%p)\n", bo, key, old_data->data);
+
+	_tbm_bufmgr_mutex_unlock();
+
 	return 1;
 }
 
-int tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **data)
+int
+tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **data)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *old_data;
 
-	if (!data || LIST_IS_EMPTY(&bo->user_data_list))
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
+	if (!data || LIST_IS_EMPTY(&bo->user_data_list)) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
 
-	old_data = _user_data_lookup(&bo->user_data_list, key);
+	old_data = user_data_lookup(&bo->user_data_list, key);
 	if (!old_data) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
 		*data = NULL;
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
 	*data = old_data->data;
 
+	TBM_TRACE("bo(%p) key(%lu) data(%p)\n", bo, key, old_data->data);
+
+	_tbm_bufmgr_mutex_unlock();
+
 	return 1;
 }
 
-int tbm_bo_delete_user_data(tbm_bo bo, unsigned long key)
+int
+tbm_bo_delete_user_data(tbm_bo bo, unsigned long key)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *old_data = (void *)0;
 
-	if (LIST_IS_EMPTY(&bo->user_data_list))
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+
+	if (LIST_IS_EMPTY(&bo->user_data_list)) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
 
-	old_data = _user_data_lookup(&bo->user_data_list, key);
-	if (!old_data)
+	old_data = user_data_lookup(&bo->user_data_list, key);
+	if (!old_data) {
+		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
+	}
+
+	TBM_TRACE("bo(%p) key(%lu) data(%p)\n", bo, key, old_data->data);
 
-	_user_data_delete(old_data);
+	user_data_delete(old_data);
+
+	_tbm_bufmgr_mutex_unlock();
 
 	return 1;
 }
 
-tbm_error_e tbm_get_last_error(void)
+unsigned int
+tbm_bufmgr_get_capability(tbm_bufmgr bufmgr)
 {
-	return tbm_last_error;
+	int capabilities = TBM_BUFMGR_CAPABILITY_NONE;
+
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), TBM_BUFMGR_CAPABILITY_NONE);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, TBM_BUFMGR_CAPABILITY_NONE);
+
+	TBM_TRACE("tbm_bufmgr(%p) capability(%d)\n", bufmgr, bufmgr->capabilities);
+
+	capabilities = bufmgr->capabilities;
+
+	_tbm_bufmgr_mutex_unlock();
+
+	return capabilities;
 }
 
-unsigned int tbm_bufmgr_get_capability(tbm_bufmgr bufmgr)
+int
+tbm_bo_get_flags(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), 0);
+	int flags;
+
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
-	unsigned int capability = TBM_BUFMGR_CAPABILITY_NONE;
+	flags = bo->flags;
 
-	if (bufmgr->backend->bo_import && bufmgr->backend->bo_export)
-		capability |= TBM_BUFMGR_CAPABILITY_SHARE_KEY;
+	TBM_TRACE("bo(%p)\n", bo);
 
-	if (bufmgr->backend->bo_import_fd && bufmgr->backend->bo_export_fd)
-		capability |= TBM_BUFMGR_CAPABILITY_SHARE_FD;
+	_tbm_bufmgr_mutex_unlock();
 
-	return capability;
+	return flags;
 }
 
-int tbm_bo_get_flags(tbm_bo bo)
+/* LCOV_EXCL_START */
+tbm_error_e
+tbm_get_last_error(void)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
-	return bo->flags;
+	return tbm_last_error;
 }
 
-void tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
+void
+tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
 {
-	TBM_RETURN_IF_FAIL(bufmgr != NULL);
 	tbm_bo bo = NULL, tmp_bo = NULL;
 	int bo_cnt = 0;
-
 	tbm_surface_h surf = NULL, tmp_surf = NULL;
 	int surf_cnt = 0;
 	int i;
 	char app_name[255] = {0,};
 	unsigned int pid = 0;
+	char title[255] = {0,};
+	char data[255] = {0,};
+	tbm_surface_debug_data *debug_old_data = NULL, *debug_tmp = NULL;
 
 	pthread_mutex_lock(&gLock);
 
-	TBM_DEBUG("\n");
-	TBM_DEBUG("\n");
-	TBM_DEBUG("\n");
+	if (!TBM_BUFMGR_IS_VALID(bufmgr) || (bufmgr != gBufMgr)) {
+		TBM_LOG_E("invalid bufmgr\n");
+		pthread_mutex_unlock(&gLock);
+		return;
+	}
+
 	TBM_DEBUG("\n");
 	_tbm_util_get_appname_from_pid(getpid(), app_name);
 	_tbm_util_get_appname_brief(app_name);
-	TBM_DEBUG("============TBM DEBUG: %s(%d)===========================\n", app_name, getpid());
-	memset(app_name, 0x0, 255*sizeof(char));
+	TBM_DEBUG("============TBM DEBUG: %s(%d)===========================\n",
+		  app_name, getpid());
+	memset(app_name, 0x0, 255 * sizeof(char));
+	snprintf(title, 255, "%s", "no  surface     refcnt  width  height  bpp  size    n_b  n_p  flags  format    app_name       ");
+	if (!LIST_IS_EMPTY(&bufmgr->debug_key_list)) {
+		LIST_FOR_EACH_ENTRY_SAFE(debug_old_data, debug_tmp, &bufmgr->debug_key_list, item_link) {
+			strncat(title, "  ", 3);
+			strncat(title, debug_old_data->key, strlen(debug_old_data->key) + 1);
+		}
+	}
 
 	TBM_DEBUG("[tbm_surface information]\n");
-	TBM_DEBUG("no  surface              refcnt  width  height  bpp  size      num_bos num_planes flags format              app_name\n");
+	TBM_DEBUG("%s\n", title);
 	/* show the tbm_surface information in surf_list */
 	if (!LIST_IS_EMPTY(&bufmgr->surf_list)) {
+		char *value = NULL;
+
 		LIST_FOR_EACH_ENTRY_SAFE(surf, tmp_surf, &bufmgr->surf_list, item_link) {
 			pid = _tbm_surface_internal_get_debug_pid(surf);
 			if (!pid) {
-					/* if pid is null, set the self_pid */
-					pid = getpid();
+				/* if pid is null, set the self_pid */
+				pid = getpid();
 			}
 
 			_tbm_util_get_appname_from_pid(pid, app_name);
 			_tbm_util_get_appname_brief(app_name);
 
-			TBM_DEBUG("%-4d%-23p%-6d%-7d%-8d%-5d%-12d%-10d%-9d%-4d%-20s%s\n",
-				++surf_cnt,
-				surf,
-				surf->refcnt,
-				surf->info.width,
-				surf->info.height,
-				surf->info.bpp,
-				surf->info.size/1024,
-				surf->num_bos,
-				surf->num_planes,
-				surf->flags,
-				_tbm_surface_internal_format_to_str(surf->info.format),
-				app_name);
+			snprintf(data, 255, "%-2d  %-9p    %-4d  %-5d  %-6d  %-3d  %-6d   %-2d   %-2d    %-3d  %-8s  %-15s",
+				  ++surf_cnt,
+				  surf,
+				  surf->refcnt,
+				  surf->info.width,
+				  surf->info.height,
+				  surf->info.bpp,
+				  surf->info.size / 1024,
+				  surf->num_bos,
+				  surf->num_planes,
+				  surf->flags,
+				  _tbm_surface_internal_format_to_str(surf->info.format) + 11,
+				  app_name);
+
+			if (!LIST_IS_EMPTY(&bufmgr->debug_key_list)) {
+				LIST_FOR_EACH_ENTRY_SAFE(debug_old_data, debug_tmp, &bufmgr->debug_key_list, item_link) {
+					strncat(data, "  ", 3);
+
+					value = _tbm_surface_internal_get_debug_data(surf, debug_old_data->key);
+					if (value)
+						strncat(data, value, strlen(value) + 1);
+					else
+						strncat(data, "none", 5);
+				}
+			}
+			TBM_DEBUG("%s\n", data);
 
 			for (i = 0; i < surf->num_bos; i++) {
-				TBM_DEBUG(" bo:%-11p(key:%2d)   %-26d%-10d\n",
-					surf->bos[i],
-					surf->bos[i]->tgl_key,
-					surf->bos[i]->ref_cnt,
-					tbm_bo_size(surf->bos[i])/1024);
+				TBM_DEBUG(" bo:%-12p  %-26d%-10d\n",
+					  surf->bos[i],
+					  surf->bos[i]->ref_cnt,
+					  bufmgr->backend->bo_size(surf->bos[i]) / 1024);
 			}
 
-			memset(app_name, 0x0, 255*sizeof(char));
+			memset(app_name, 0x0, 255 * sizeof(char));
 		}
 	} else {
 		TBM_DEBUG("no tbm_surfaces.\n");
@@ -1655,22 +1542,20 @@ void tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
 	TBM_DEBUG("\n");
 
 	TBM_DEBUG("[tbm_bo information]\n");
-	TBM_DEBUG("no  bo                   refcnt  size     lock_cnt map_cnt cache_state flags surface\n");
+	TBM_DEBUG("no  bo          refcnt  size    lock_cnt  map_cnt  flags  surface\n");
 
 	/* show the tbm_bo information in bo_list */
 	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
 		LIST_FOR_EACH_ENTRY_SAFE(bo, tmp_bo, &bufmgr->bo_list, item_link) {
-			TBM_DEBUG("%-4d%-11p(key:%2d)   %-6d%-12d%-9d%-9d%-10d%-4d%-11p\n",
-				++bo_cnt,
-				bo,
-				bo->tgl_key,
-				bo->ref_cnt,
-				tbm_bo_size(bo)/1024,
-				bo->lock_cnt,
-				bo->map_cnt,
-				bo->cache_state.val,
-				bo->flags,
-				bo->surface);
+			TBM_DEBUG("%-4d%-11p   %-4d  %-6d     %-5d     %-4d    %-3d  %-11p\n",
+				  ++bo_cnt,
+				  bo,
+				  bo->ref_cnt,
+				  bufmgr->backend->bo_size(bo) / 1024,
+				  bo->lock_cnt,
+				  bo->map_cnt,
+				  bo->flags,
+				  bo->surface);
 		}
 	} else {
 		TBM_DEBUG("no tbm_bos.\n");
@@ -1680,22 +1565,134 @@ void tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
 	TBM_DEBUG("===============================================================\n");
 
 	pthread_mutex_unlock(&gLock);
+}
+
+void
+tbm_bufmgr_debug_trace(tbm_bufmgr bufmgr, int onoff)
+{
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr));
+	TBM_BUFMGR_RETURN_IF_FAIL(bufmgr == gBufMgr);
+
+#ifdef TRACE
+	TBM_LOG_D("bufmgr=%p onoff=%d\n", bufmgr, onoff);
+	bTrace = onoff;
+#endif
+
+	_tbm_bufmgr_mutex_unlock();
+}
+
+int
+tbm_bufmgr_debug_queue_dump(char *path, int count, int onoff)
+{
+	int w = 0, h = 0;
+
+	TBM_RETURN_VAL_IF_FAIL(path != NULL, 0);
+	TBM_LOG_D("path=%s count=%d onoff=%d\n", path, count, onoff);
+
+	pthread_mutex_lock(&gLock);
 
+	if (onoff == 1) {
+		if (_tbm_util_get_max_surface_size(&w, &h) == 0) {
+			TBM_LOG_I("No tbm_surface.\n");
+			pthread_mutex_unlock(&gLock);
+			return 0;
+		}
+
+		tbm_surface_internal_dump_start(path, w, h, count);
+		b_dump_queue = 1;
+	} else if (onoff == 0) {
+		tbm_surface_internal_dump_end();
+		b_dump_queue = 0;
+	} else {
+		pthread_mutex_unlock(&gLock);
+		return 0;
+	}
+
+	pthread_mutex_unlock(&gLock);
+	return 1;
 }
 
-void tbm_bufmgr_debug_trace(tbm_bufmgr bufmgr, int onoff)
+int
+tbm_bufmgr_debug_dump_all(char *path)
 {
-	TBM_LOG("bufmgr=%p onoff=%d\n", bufmgr, onoff);
-	TBM_LOG("Not implemented yet.\n");
+	int w = 0, h = 0, count = 0;
+	tbm_surface_h surface = NULL, tmp = NULL;
+
+	TBM_RETURN_VAL_IF_FAIL(path != NULL, 0);
+	TBM_LOG_D("path=%s\n", path);
+
+	pthread_mutex_lock(&gLock);
+
+	count = _tbm_util_get_max_surface_size(&w, &h);
+	if (count == 0) {
+		TBM_LOG_I("No tbm_surface.\n");
+		pthread_mutex_unlock(&gLock);
+		return 1;
+	}
+
+	tbm_surface_internal_dump_start(path, w, h, count);
+
+	LIST_FOR_EACH_ENTRY_SAFE(surface, tmp, &gBufMgr->surf_list, item_link) {
+		tbm_surface_internal_dump_buffer(surface, "dump_all");
+	}
+
+	tbm_surface_internal_dump_end();
+
+	pthread_mutex_unlock(&gLock);
+
+	return 1;
 }
 
 /* internal function */
-int _tbm_bo_set_surface(tbm_bo bo, tbm_surface_h surface)
+tbm_bufmgr
+_tbm_bufmgr_get_bufmgr(void)
+{
+	return gBufMgr;
+}
+
+int
+_tbm_bo_set_surface(tbm_bo bo, tbm_surface_h surface)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
 	bo->surface = surface;
 
+	_tbm_bufmgr_mutex_unlock();
+
 	return 1;
 }
 
+int
+tbm_bufmgr_bind_native_display(tbm_bufmgr bufmgr, void *NativeDisplay)
+{
+	int ret;
+
+	_tbm_bufmgr_mutex_lock();
+
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), 0);
+
+	if (!bufmgr->backend->bufmgr_bind_native_display) {
+		TBM_TRACE("error: tbm_bufmgr(%p) NativeDisplay(%p)\n", bufmgr, NativeDisplay);
+		_tbm_bufmgr_mutex_unlock();
+		return 1;
+	}
+
+	ret = bufmgr->backend->bufmgr_bind_native_display(bufmgr, NativeDisplay);
+	if (!ret) {
+		TBM_TRACE("error: tbm_bufmgr(%p) NativeDisplay(%p)\n", bufmgr, NativeDisplay);
+		_tbm_bufmgr_mutex_unlock();
+		return 0;
+	}
+
+	TBM_TRACE("tbm_bufmgr(%p) NativeDisplay(%p)\n", bufmgr, NativeDisplay);
+
+	_tbm_bufmgr_mutex_unlock();
+
+	return 1;
+}
+/* LCOV_EXCL_STOP */