X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Ftbm_bufmgr.c;h=f101e735d91f7e3d68957f1d1e1bc745846bc4e6;hb=04a7544ed0fc29da57828a30057e28cf50020c37;hp=6c79d5b21f9ad6debe08bd87c516221b218af18b;hpb=1fb20d2266017afedabca36e9e6f5600929fc188;p=platform%2Fcore%2Fuifw%2Flibtbm.git

diff --git a/src/tbm_bufmgr.c b/src/tbm_bufmgr.c
index 6c79d5b..f101e73 100644
--- a/src/tbm_bufmgr.c
+++ b/src/tbm_bufmgr.c
@@ -36,6 +36,8 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "tbm_bufmgr_backend.h"
 #include "list.h"
 
+#include <sys/resource.h>
+
 #ifdef DEBUG
 int bDebug;
 #endif
@@ -48,6 +50,17 @@ int bTrace;
 int bDlog;
 #endif
 
+tbm_bufmgr gBufMgr;
+int b_dump_queue;
+
+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 double scale_factor = 0;
+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
@@ -64,51 +77,140 @@ int bDlog;
 #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
 };
 
-pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
-tbm_bufmgr gBufMgr;
-
-static __thread tbm_error_e tbm_last_error = TBM_ERROR_NONE;
-
 static void
 _tbm_set_last_result(tbm_error_e err)
 {
 	tbm_last_error = err;
 }
 
-char * tbm_flag_to_str(int f) {
+/* LCOV_EXCL_START */
+static bool
+_tbm_bufmgr_mutex_init(void)
+{
+	static bool tbm_bufmgr_mutex_init = false;
+
+	if (tbm_bufmgr_mutex_init)
+		return true;
+
+	if (pthread_mutex_init(&tbm_bufmgr_lock, NULL)) {
+		TBM_LOG_E("fail: Cannot pthread_mutex_init for tbm_bufmgr_lock.\n");
+		return false;
+	}
+
+	tbm_bufmgr_mutex_init = true;
+
+	return true;
+}
+
+static void
+_tbm_bufmgr_mutex_lock(void)
+{
+	if (!_tbm_bufmgr_mutex_init()) {
+		TBM_LOG_E("fail: _tbm_bufmgr_mutex_init()\n");
+		return;
+	}
+
+	pthread_mutex_lock(&tbm_bufmgr_lock);
+}
+
+static void
+_tbm_bufmgr_mutex_unlock(void)
+{
+	pthread_mutex_unlock(&tbm_bufmgr_lock);
+}
+
+static char *
+_tbm_flag_to_str(int f)
+{
 	static char str[255];
-	int c = 0;
+
 	if (f == TBM_BO_DEFAULT)
-		 snprintf(str, 255, "DEFAULT\n");
+		 snprintf(str, 255, "DEFAULT");
 	else {
+		int c = 0;
+
 		if (f & TBM_BO_SCANOUT)
-			c = snprintf(&str[c], 255, "SCANOUT,");
-		if (f & TBM_BO_NONCACHABLE)
+			c = snprintf(&str[c], 255, "SCANOUT");
+
+		if (f & TBM_BO_NONCACHABLE) {
+			if (c)
+				c = snprintf(&str[c], 255, ", ");
 			c = snprintf(&str[c], 255, "NONCACHABLE,");
-		if (f & TBM_BO_WC)
+		}
+
+		if (f & TBM_BO_WC) {
+			if (c)
+				c = snprintf(&str[c], 255, ", ");
 			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 last_chk_bo_cnt = 0;
+
+	if ((bufmgr->bo_cnt >= 500) && ((bufmgr->bo_cnt % 20) == 0) &&
+		(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)
+{
+	tbm_surface_info_s info;
+	tbm_surface_h surface = NULL;
+	int count = 0;
+
+	*w = 0;
+	*h = 0;
+
+	if (gBufMgr == NULL || LIST_IS_EMPTY(&gBufMgr->surf_list))
+		return count;
+
+	LIST_FOR_EACH_ENTRY(surface, &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
@@ -133,25 +235,24 @@ _tbm_util_get_appname_brief(char *brief)
 static void
 _tbm_util_get_appname_from_pid(long pid, char *str)
 {
+	char fn_cmdline[255] = {0, }, cmdline[255];
 	FILE *fp;
 	int len;
-	long app_pid = pid;
-	char fn_cmdline[255] = {0,};
-	char cmdline[255] = {0,};
 
-	snprintf(fn_cmdline, sizeof(fn_cmdline), "/proc/%ld/cmdline", app_pid);
+	snprintf(fn_cmdline, sizeof(fn_cmdline), "/proc/%ld/cmdline", pid);
 
 	fp = fopen(fn_cmdline, "r");
 	if (fp == 0) {
-		fprintf(stderr, "cannot file open /proc/%ld/cmdline", app_pid);
+		TBM_LOG_E("cannot file open %s\n", fn_cmdline);
 		return;
 	}
 
 	if (!fgets(cmdline, 255, fp)) {
-		fprintf(stderr, "fail to get appname for pid(%ld)\n", app_pid);
+		TBM_LOG_E("fail to get appname for pid(%ld)\n", pid);
 		fclose(fp);
 		return;
 	}
+
 	fclose(fp);
 
 	len = strlen(cmdline);
@@ -167,33 +268,34 @@ _tbm_util_get_appname_from_pid(long pid, char *str)
 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;
-
-	if (!LIST_IS_EMPTY(user_data_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(old_data, tmp, user_data_list, item_link) {
-			if (old_data->key == key) {
-				user_data = old_data;
-				return user_data;
-			}
-		}
+	tbm_user_data *old_data = NULL;
+
+	if (LIST_IS_EMPTY(user_data_list))
+		return NULL;
+
+	LIST_FOR_EACH_ENTRY(old_data, user_data_list, item_link) {
+		if (old_data->key == key)
+			return old_data;
 	}
 
-	return user_data;
+	return NULL;
 }
 
 tbm_user_data
 *user_data_create(unsigned long key, tbm_data_free data_free_func)
 {
-	tbm_user_data *user_data = NULL;
+	tbm_user_data *user_data;
 
 	user_data = calloc(1, sizeof(tbm_user_data));
-	if (!user_data)
+	if (!user_data) {
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("fail to allocate an user_date\n");
 		return NULL;
+		/* LCOV_EXCL_STOP */
+	}
 
 	user_data->key = key;
 	user_data->free_func = data_free_func;
-	user_data->data = (void *)0;
 
 	return user_data;
 }
@@ -213,12 +315,10 @@ static int
 _bo_lock(tbm_bo bo, int device, int opt)
 {
 	tbm_bufmgr bufmgr = bo->bufmgr;
-	int ret = 0;
+	int ret = 1;
 
 	if (bufmgr->backend->bo_lock)
 		ret = bufmgr->backend->bo_lock(bo, device, opt);
-	else
-		ret = 1;
 
 	return ret;
 }
@@ -235,9 +335,8 @@ _bo_unlock(tbm_bo bo)
 static int
 _tbm_bo_lock(tbm_bo bo, int device, int opt)
 {
-	tbm_bufmgr bufmgr = NULL;
-	int old;
-	int ret = 0;
+	tbm_bufmgr bufmgr;
+	int old, ret;
 
 	if (!bo)
 		return 0;
@@ -251,31 +350,37 @@ _tbm_bo_lock(tbm_bo bo, int device, int opt)
 	if (bo->lock_cnt < 0) {
 		TBM_LOG_E("error bo:%p LOCK_CNT=%d\n",
 			bo, bo->lock_cnt);
+		return 0;
 	}
 
 	old = bo->lock_cnt;
-	if (bufmgr->lock_type == LOCK_TRY_ONCE) {
+
+	switch (bufmgr->lock_type) {
+	case 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);
+		break;
+	case LOCK_TRY_ALWAYS:
+		_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_E("error bo:%p lock_type is wrong.\n",
-			bo);
+		break;
+	default:
+		TBM_LOG_E("error bo:%p lock_type[%d] is wrong.\n",
+				bo, bufmgr->lock_type);
+		ret = 0;
+		break;
 	}
 
-	DBG_LOCK(">> LOCK bo:%p(%d->%d)\n",
-		 bo, old, bo->lock_cnt);
+	TBM_DBG_LOCK(">> LOCK bo:%p(%d->%d)\n", bo, old, bo->lock_cnt);
 
 	return ret;
 }
@@ -283,8 +388,7 @@ _tbm_bo_lock(tbm_bo bo, int device, int opt)
 static void
 _tbm_bo_unlock(tbm_bo bo)
 {
-	tbm_bufmgr bufmgr = NULL;
-
+	tbm_bufmgr bufmgr;
 	int old;
 
 	if (!bo)
@@ -297,89 +401,56 @@ _tbm_bo_unlock(tbm_bo bo)
 		return;
 
 	old = bo->lock_cnt;
-	if (bufmgr->lock_type == LOCK_TRY_ONCE) {
+
+	switch (bufmgr->lock_type) {
+	case LOCK_TRY_ONCE:
 		if (bo->lock_cnt > 0) {
 			bo->lock_cnt--;
 			if (bo->lock_cnt == 0)
 				_bo_unlock(bo);
 		}
-	} else if (bufmgr->lock_type == LOCK_TRY_ALWAYS) {
+		break;
+	case LOCK_TRY_ALWAYS:
 		if (bo->lock_cnt > 0) {
 			bo->lock_cnt--;
 			_bo_unlock(bo);
 		}
-	} else {
-		TBM_LOG_E("error bo:%p lock_type is wrong.\n",
-			bo);
+		break;
+	default:
+		TBM_LOG_E("error bo:%p lock_type[%d] is wrong.\n",
+				bo, bufmgr->lock_type);
+		break;
 	}
 
 	if (bo->lock_cnt < 0)
 		bo->lock_cnt = 0;
 
-	DBG_LOCK(">> UNLOCK bo:%p(%d->%d)\n",
-		 bo, 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)
 {
-	tbm_bo old_data = NULL, tmp = NULL;
+	tbm_bo old_data = NULL;
 
-	if (bo == NULL)
+	if (bo == NULL || gBufMgr == NULL) {
+		TBM_LOG_E("error: bo is NULL or 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)
-				return 1;
-		}
-
 	}
-	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("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;
-
-		LIST_DEL(&bo->item_link);
-		free(bo);
-		bo = NULL;
+	if (LIST_IS_EMPTY(&gBufMgr->bo_list)) {
+		TBM_LOG_E("error: gBufMgr->bo_list is EMPTY.\n");
+		return 0;
+	}
 
-		bufmgr->bo_cnt--;
+	LIST_FOR_EACH_ENTRY(old_data, &gBufMgr->bo_list, item_link) {
+		if (old_data == bo)
+			return 1;
 	}
 
+	TBM_LOG_E("error: No valid bo(%p).\n", bo);
+
+	return 0;
 }
 
 /* LCOV_EXCL_START */
@@ -392,14 +463,14 @@ _check_version(TBMModuleVersionInfo *data)
 	abimaj = GET_ABI_MAJOR(data->abiversion);
 	abimin = GET_ABI_MINOR(data->abiversion);
 
-	DBG("TBM module %s: vendor=\"%s\" ABI=%d,%d\n",
+	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("TBM ABI version %d.%d\n",
+	TBM_DBG("TBM ABI version %d.%d\n",
 	    vermaj, vermin);
 
 	if (abimaj != vermaj) {
@@ -411,108 +482,102 @@ _check_version(TBMModuleVersionInfo *data)
 			abimin, vermin);
 		return 0;
 	}
+
 	return 1;
 }
 
 static int
 _tbm_bufmgr_load_module(tbm_bufmgr bufmgr, int fd, const char *file)
 {
-	char path[PATH_MAX] = { 0, };
-	TBMModuleData *initdata = NULL;
+	char path[PATH_MAX] = {0, };
+	TBMModuleVersionInfo *vers;
+	TBMModuleData *initdata;
+	ModuleInitProc init;
 	void *module_data;
 
 	snprintf(path, sizeof(path), BUFMGR_MODULE_DIR "/%s", file);
 
 	module_data = dlopen(path, RTLD_LAZY);
 	if (!module_data) {
-		TBM_LOG_E("failed to load module: %s(%s)\n",
-			dlerror(), file);
+		TBM_LOG_E("failed to load module: %s(%s)\n", dlerror(), file);
 		return 0;
 	}
 
 	initdata = dlsym(module_data, "tbmModuleData");
-	if (initdata) {
-		ModuleInitProc init;
-		TBMModuleVersionInfo *vers;
+	if (!initdata) {
+		TBM_LOG_E("Error: module does not have data object.\n");
+		goto err;
+	}
 
-		vers = initdata->vers;
-		init = initdata->init;
+	vers = initdata->vers;
+	if (!vers) {
+		TBM_LOG_E("Error: module does not supply version information.\n");
+		goto err;
+	}
 
-		if (vers) {
-			if (!_check_version(vers)) {
-				dlclose(module_data);
-				return 0;
-			}
-		} else {
-			TBM_LOG_E("Error: module does not supply version information.\n");
+	init = initdata->init;
+	if (!init) {
+		TBM_LOG_E("Error: module does not supply init symbol.\n");
+		goto err;
+	}
 
-			dlclose(module_data);
-			return 0;
-		}
+	if (!_check_version(vers)) {
+		TBM_LOG_E("Fail to check version.\n");
+		goto err;
+	}
 
-		if (init) {
-			if (!init(bufmgr, fd)) {
-				TBM_LOG_E("Fail to init module(%s)\n",
-					file);
-				dlclose(module_data);
-				return 0;
-			}
+	if (!init(bufmgr, fd)) {
+		TBM_LOG_E("Fail to init module(%s)\n", file);
+		goto err;
+	}
 
-			if (!bufmgr->backend || !bufmgr->backend->priv) {
-				TBM_LOG_E("Error: module(%s) wrong operation. Check backend or backend's priv.\n",
-					file);
-				dlclose(module_data);
-				return 0;
-			}
-		} else {
-			TBM_LOG_E("Error: module does not supply init symbol.\n");
-			dlclose(module_data);
-			return 0;
-		}
-	} else {
-		TBM_LOG_E("Error: module does not have data object.\n");
-		dlclose(module_data);
-		return 0;
+	if (!bufmgr->backend || !bufmgr->backend->priv) {
+		TBM_LOG_E("Error: module(%s) wrong operation. Check backend or backend's priv.\n", file);
+		goto err;
 	}
 
 	bufmgr->module_data = module_data;
 
-	DBG("Success to load module(%s)\n",
-	    file);
+	TBM_DBG("Success to load module(%s)\n", file);
 
 	return 1;
+
+err:
+	dlclose(module_data);
+	return 0;
 }
 
 static int
 _tbm_load_module(tbm_bufmgr bufmgr, int fd)
 {
 	struct dirent **namelist;
-	const char *p = NULL;
-	int n;
-	int ret = 0;
+	int ret = 0, n;
 
 	/* load bufmgr priv from default lib */
-	ret = _tbm_bufmgr_load_module(bufmgr, fd, DEFAULT_LIB);
+	if (_tbm_bufmgr_load_module(bufmgr, fd, DEFAULT_LIB))
+		return 1;
 
 	/* load bufmgr priv from configured path */
-	if (!ret) {
-		n = scandir(BUFMGR_MODULE_DIR, &namelist, 0, alphasort);
-		if (n < 0) {
-			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 && !strcmp(p, SUFFIX_LIB))
-						ret = _tbm_bufmgr_load_module(bufmgr, fd, namelist[n]->d_name);
-				}
-				free(namelist[n]);
-			}
-			free(namelist);
+	n = scandir(BUFMGR_MODULE_DIR, &namelist, 0, alphasort);
+	if (n < 0) {
+		TBM_LOG_E("no files : %s\n", BUFMGR_MODULE_DIR);
+		return 0;
+	}
+
+	while (n--) {
+		if (!ret && strstr(namelist[n]->d_name, PREFIX_LIB)) {
+			const char *p = strstr(namelist[n]->d_name, SUFFIX_LIB);
+
+			if (p && !strcmp(p, SUFFIX_LIB))
+				ret = _tbm_bufmgr_load_module(bufmgr, fd,
+							namelist[n]->d_name);
 		}
+
+		free(namelist[n]);
 	}
 
+	free(namelist);
+
 	return ret;
 }
 /* LCOV_EXCL_STOP */
@@ -520,9 +585,15 @@ _tbm_load_module(tbm_bufmgr bufmgr, int fd)
 tbm_bufmgr
 tbm_bufmgr_init(int fd)
 {
+#ifdef TBM_BUFMGR_INIT_TIME
+	struct timeval start_tv, end_tv;
+#endif
 	char *env;
 
-	pthread_mutex_lock(&gLock);
+#ifdef TBM_BUFMGR_INIT_TIME
+	/* get the start tv */
+	gettimeofday(&start_tv, NULL);
+#endif
 
 	/* LCOV_EXCL_START */
 #ifdef HAVE_DLOG
@@ -530,9 +601,8 @@ tbm_bufmgr_init(int fd)
 	if (env) {
 		bDlog = atoi(env);
 		TBM_LOG_D("TBM_DLOG=%s\n", env);
-	} else {
+	} else
 		bDlog = 1;
-	}
 #endif
 
 #ifdef DEBUG
@@ -540,9 +610,8 @@ tbm_bufmgr_init(int fd)
 	if (env) {
 		bDebug = atoi(env);
 		TBM_LOG_D("TBM_DEBUG=%s\n", env);
-	} else {
+	} else
 		bDebug = 0;
-	}
 #endif
 
 #ifdef TRACE
@@ -550,11 +619,17 @@ tbm_bufmgr_init(int fd)
 	if (env) {
 		bTrace = atoi(env);
 		TBM_LOG_D("TBM_TRACE=%s\n", env);
-	} else {
+	} else
 		bTrace = 0;
-	}
 #endif
-	/* LCOV_EXCL_STOP */
+
+	pthread_mutex_lock(&gLock);
+
+	if (fd >= 0) {
+		TBM_LOG_W("!!!!!WARNING:: The tbm_bufmgr_init DOSE NOT use argument fd ANYMORE.\n");
+		TBM_LOG_W("!!!!!WARNING:: IT WILL BE CHANGED like tbm_bufmgr_init(int fd) --> tbm_bufmgr_init(void).\n");
+	}
+
 
 	/* initialize buffer manager */
 	if (gBufMgr) {
@@ -564,7 +639,7 @@ tbm_bufmgr_init(int fd)
 		return gBufMgr;
 	}
 
-	DBG("bufmgr init\n");
+	TBM_DBG("bufmgr init\n");
 
 	/* allocate bufmgr */
 	gBufMgr = calloc(1, sizeof(struct _tbm_bufmgr));
@@ -579,38 +654,25 @@ tbm_bufmgr_init(int 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_E("error : Fail to load bufmgr backend\n");
 		free(gBufMgr);
 		gBufMgr = NULL;
 		pthread_mutex_unlock(&gLock);
 		return NULL;
-		/* LCOV_EXCL_STOP */
+
 	}
+	/* LCOV_EXCL_STOP */
 
 	/* log for tbm backend_flag */
-	DBG("backend flag:%x:", gBufMgr->backend->flags);
-	DBG("\n");
+	TBM_DBG("backend flag:%x:", gBufMgr->backend->flags);
+	TBM_DBG("\n");
 
 	gBufMgr->ref_count = 1;
 
-	DBG("create tizen bufmgr:%p ref_count:%d\n",
+	TBM_DBG("create tizen bufmgr:%p ref_count:%d\n",
 	    gBufMgr, gBufMgr->ref_count);
 
-	if (pthread_mutex_init(&gBufMgr->lock, NULL) != 0) {
-		/* LCOV_EXCL_START */
-		_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);
-		free(gBufMgr);
-		gBufMgr = NULL;
-		pthread_mutex_unlock(&gLock);
-		return NULL;
-		/* LCOV_EXCL_STOP */
-	}
-
 	/* setup the lock_type */
 	env = getenv("BUFMGR_LOCK_TYPE");
 	if (env && !strcmp(env, "always"))
@@ -622,8 +684,7 @@ tbm_bufmgr_init(int fd)
 	else
 		gBufMgr->lock_type = LOCK_TRY_ALWAYS;
 
-	DBG("BUFMGR_LOCK_TYPE=%s\n",
-	    env ? env : "default:once");
+	TBM_DBG("BUFMGR_LOCK_TYPE=%s\n", env ? env : "default:once");
 
 	TBM_TRACE("create tbm_bufmgr(%p) ref_count(%d) fd(%d)\n", gBufMgr, gBufMgr->ref_count, fd);
 
@@ -633,7 +694,20 @@ tbm_bufmgr_init(int fd)
 	/* intialize surf_list */
 	LIST_INITHEAD(&gBufMgr->surf_list);
 
+	/* intialize surf_queue_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;
 }
 
@@ -642,12 +716,6 @@ tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 {
 	TBM_RETURN_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr));
 
-	tbm_bo bo = NULL;
-	tbm_bo tmp = NULL;
-
-	tbm_surface_h surf = NULL;
-	tbm_surface_h tmp_surf = NULL;
-
 	pthread_mutex_lock(&gLock);
 
 	if (!gBufMgr) {
@@ -665,9 +733,10 @@ tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 
 	/* destroy bo_list */
 	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
+		tbm_bo bo = NULL, tmp;
+
 		LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &bufmgr->bo_list, item_link) {
-			TBM_LOG_E("Un-freed bo(%p, ref:%d)\n",
-				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);
 		}
@@ -675,9 +744,10 @@ 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_E("Un-freed surf(%p, ref:%d)\n",
-				surf, surf->refcnt);
+		tbm_surface_h surf = NULL, tmp;
+
+		LIST_FOR_EACH_ENTRY_SAFE(surf, tmp, &bufmgr->surf_list, item_link) {
+			TBM_LOG_E("Un-freed surf(%p, ref:%d)\n", surf, surf->refcnt);
 			tbm_surface_destroy(surf);
 		}
 	}
@@ -688,8 +758,6 @@ tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 	tbm_backend_free(bufmgr->backend);
 	bufmgr->backend = NULL;
 
-	pthread_mutex_destroy(&bufmgr->lock);
-
 	TBM_TRACE("destroy tbm_bufmgr(%p)\n", bufmgr);
 
 	dlclose(bufmgr->module_data);
@@ -698,7 +766,6 @@ tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 		close(bufmgr->fd);
 
 	free(bufmgr);
-	bufmgr = NULL;
 	gBufMgr = NULL;
 
 	pthread_mutex_unlock(&gLock);
@@ -707,18 +774,19 @@ tbm_bufmgr_deinit(tbm_bufmgr bufmgr)
 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 = gBufMgr;
 	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);
 
 	size = bufmgr->backend->bo_size(bo);
 
 	TBM_TRACE("bo(%p) size(%d)\n", bo, size);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return size;
 }
@@ -726,17 +794,16 @@ tbm_bo_size(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;
-
-	pthread_mutex_lock(&bufmgr->lock);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), NULL);
 
-	_tbm_bo_ref(bo);
+	bo->ref_cnt++;
 
 	TBM_TRACE("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo;
 }
@@ -744,61 +811,105 @@ tbm_bo_ref(tbm_bo bo)
 void
 tbm_bo_unref(tbm_bo bo)
 {
-	TBM_RETURN_IF_FAIL(_tbm_bo_is_valid(bo));
+	tbm_bufmgr bufmgr = gBufMgr;
 
-	tbm_bufmgr bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
 
-	pthread_mutex_lock(&bufmgr->lock);
+	TBM_BUFMGR_RETURN_IF_FAIL(gBufMgr);
+	TBM_BUFMGR_RETURN_IF_FAIL(_tbm_bo_is_valid(bo));
 
 	TBM_TRACE("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt - 1);
 
-	_tbm_bo_unref(bo);
+	if (bo->ref_cnt <= 0) {
+		_tbm_bufmgr_mutex_unlock();
+		return;
+	}
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	bo->ref_cnt--;
+	if (bo->ref_cnt == 0) {
+		/* destory the user_data_list */
+		if (!LIST_IS_EMPTY(&bo->user_data_list)) {
+			tbm_user_data *old_data = NULL, *tmp;
+
+			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);
+			}
+		}
+
+		while (bo->lock_cnt > 0) {
+			TBM_LOG_E("error lock_cnt:%d\n", bo->lock_cnt);
+			_bo_unlock(bo);
+			bo->lock_cnt--;
+		}
+
+		/* call the bo_free */
+		bufmgr->backend->bo_free(bo);
+		bo->priv = NULL;
+
+		LIST_DEL(&bo->item_link);
+		free(bo);
+
+		bufmgr->bo_cnt--;
+	}
+
+	_tbm_bufmgr_mutex_unlock();
 }
 
 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);
+	void *bo_priv;
+	tbm_bo bo;
+
+	_tbm_bufmgr_mutex_lock();
 
-	tbm_bo bo = NULL;
-	void *bo_priv = NULL;
+	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));
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
 	_tbm_util_check_bo_cnt(bufmgr);
-	bufmgr->bo_cnt++;
 
 	bo->bufmgr = bufmgr;
 
-	pthread_mutex_lock(&bufmgr->lock);
-
 	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));
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
+	bufmgr->bo_cnt++;
+
 	bo->ref_cnt = 1;
 	bo->flags = flags;
 	bo->priv = bo_priv;
 
-	TBM_TRACE("bo(%p) size(%d) refcnt(%d), flag(%s)\n", bo, size, bo->ref_cnt, tbm_flag_to_str(bo->flags));
+	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;
 }
@@ -806,50 +917,63 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
 tbm_bo
 tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	void *bo_priv;
+	tbm_bo bo;
 
-	tbm_bo bo = NULL;
-	tbm_bo bo2 = NULL;
-	tbm_bo tmp = NULL;
-	void *bo_priv = NULL;
+	_tbm_bufmgr_mutex_lock();
 
-	_tbm_util_check_bo_cnt(bufmgr);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, NULL);
+
+	if (!bufmgr->backend->bo_import) {
+		/* LCOV_EXCL_START */
+		_tbm_bufmgr_mutex_unlock();
+		return NULL;
+		/* LCOV_EXCL_STOP */
+	}
 
-	pthread_mutex_lock(&bufmgr->lock);
+	_tbm_util_check_bo_cnt(bufmgr);
 
 	bo = calloc(1, sizeof(struct _tbm_bo));
 	if (!bo) {
-		TBM_TRACE("error: fail to import of tbm_bo by key(%d)\n", key);
-		pthread_mutex_unlock(&bufmgr->lock);
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("error: fail to import of tbm_bo by key(%d)\n", key);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
+		/* LCOV_EXCL_STOP */
 	}
 
-	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);
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
 	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
+		tbm_bo bo2 = NULL;
+
+		LIST_FOR_EACH_ENTRY(bo2, &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, bo2->ref_cnt, key,
+						_tbm_flag_to_str(bo2->flags));
 				bo2->ref_cnt++;
 				free(bo);
-				pthread_mutex_unlock(&bufmgr->lock);
+				_tbm_bufmgr_mutex_unlock();
 				return bo2;
 			}
 		}
 	}
 
+	bufmgr->bo_cnt++;
+
 	bo->ref_cnt = 1;
 	bo->priv = bo_priv;
 
@@ -859,13 +983,13 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
 		bo->flags = TBM_BO_DEFAULT;
 
 	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));
+			  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;
 }
@@ -873,50 +997,63 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
 tbm_bo
 tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	void *bo_priv;
+	tbm_bo bo;
 
-	tbm_bo bo = NULL;
-	tbm_bo bo2 = NULL;
-	tbm_bo tmp = NULL;
-	void *bo_priv = NULL;
+	_tbm_bufmgr_mutex_lock();
 
-	_tbm_util_check_bo_cnt(bufmgr);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(bufmgr == gBufMgr, NULL);
 
-	pthread_mutex_lock(&bufmgr->lock);
+	if (!bufmgr->backend->bo_import_fd) {
+		/* LCOV_EXCL_START */
+		_tbm_bufmgr_mutex_unlock();
+		return NULL;
+		/* LCOV_EXCL_STOP */
+	}
+
+	_tbm_util_check_bo_cnt(bufmgr);
 
 	bo = calloc(1, sizeof(struct _tbm_bo));
 	if (!bo) {
-		TBM_TRACE("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
-		pthread_mutex_unlock(&bufmgr->lock);
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
+		_tbm_bufmgr_mutex_unlock();
 		return NULL;
+		/* LCOV_EXCL_STOP */
 	}
 
-	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);
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
 	if (!LIST_IS_EMPTY(&bufmgr->bo_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(bo2, tmp, &bufmgr->bo_list, item_link) {
+		tbm_bo bo2 = NULL;
+
+		LIST_FOR_EACH_ENTRY(bo2, &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, bo2->ref_cnt, fd,
+						_tbm_flag_to_str(bo2->flags));
 				bo2->ref_cnt++;
 				free(bo);
-				pthread_mutex_unlock(&bufmgr->lock);
+				_tbm_bufmgr_mutex_unlock();
 				return bo2;
 			}
 		}
 	}
 
+	bufmgr->bo_cnt++;
+
 	bo->ref_cnt = 1;
 	bo->priv = bo_priv;
 
@@ -925,14 +1062,14 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
 	else
 		bo->flags = TBM_BO_DEFAULT;
 
-	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));
+	TBM_TRACE("import bo(%p) ref(%d) fd(%d) flag(%s)\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;
 }
@@ -940,26 +1077,34 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
 tbm_key
 tbm_bo_export(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = gBufMgr;
 	tbm_key ret;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
 
-	pthread_mutex_lock(&bufmgr->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 (!bufmgr->backend->bo_export) {
+		/* LCOV_EXCL_START */
+		_tbm_bufmgr_mutex_unlock();
+		return 0;
+		/* LCOV_EXCL_STOP */
+	}
 
 	ret = bufmgr->backend->bo_export(bo);
 	if (!ret) {
+		/* LCOV_EXCL_START */
 		_tbm_set_last_result(TBM_BO_ERROR_EXPORT_FAILED);
-		TBM_TRACE("error: bo(%p) tbm_key(%d)\n", bo, ret);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_LOG_E("error: bo(%p) tbm_key(%d)\n", bo, ret);
+		_tbm_bufmgr_mutex_unlock();
 		return ret;
+		/* LCOV_EXCL_STOP */
 	}
 
-	TBM_TRACE("bo(%p) tbm_key(%d)\n", bo, ret);
+	TBM_TRACE("bo(%p) tbm_key(%u)\n", bo, ret);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
@@ -967,26 +1112,34 @@ tbm_bo_export(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 = gBufMgr;
+	tbm_fd ret;
 
-	tbm_bufmgr bufmgr;
-	int ret;
+	_tbm_bufmgr_mutex_lock();
 
-	bufmgr = bo->bufmgr;
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(gBufMgr), -1);
+	TBM_BUFMGR_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), -1);
 
-	pthread_mutex_lock(&bufmgr->lock);
+	if (!bufmgr->backend->bo_export_fd) {
+		/* LCOV_EXCL_START */
+		_tbm_bufmgr_mutex_unlock();
+		return -1;
+		/* LCOV_EXCL_STOP */
+	}
 
 	ret = bufmgr->backend->bo_export_fd(bo);
 	if (ret < 0) {
+		/* LCOV_EXCL_START */
 		_tbm_set_last_result(TBM_BO_ERROR_EXPORT_FD_FAILED);
-		TBM_TRACE("error: bo(%p) tbm_fd(%d)\n", bo, ret);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_LOG_E("error: bo(%p) tbm_fd(%d)\n", bo, ret);
+		_tbm_bufmgr_mutex_unlock();
 		return ret;
+		/* LCOV_EXCL_STOP */
 	}
 
 	TBM_TRACE("bo(%p) tbm_fd(%d)\n", bo, ret);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
@@ -994,26 +1147,27 @@ tbm_bo_export_fd(tbm_bo bo)
 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 = gBufMgr;
 	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);
 	if (bo_handle.ptr == NULL) {
+		/* LCOV_EXCL_START */
 		_tbm_set_last_result(TBM_BO_ERROR_GET_HANDLE_FAILED);
-		TBM_TRACE("error: bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_LOG_E("error: bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
+		_tbm_bufmgr_mutex_unlock();
 		return (tbm_bo_handle) NULL;
+		/* LCOV_EXCL_STOP */
 	}
 
 	TBM_TRACE("bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo_handle;
 }
@@ -1021,29 +1175,30 @@ tbm_bo_get_handle(tbm_bo bo, int device)
 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 = gBufMgr;
 	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);
 
 	if (!_tbm_bo_lock(bo, device, opt)) {
 		_tbm_set_last_result(TBM_BO_ERROR_LOCK_FAILED);
-		TBM_TRACE("error: fail to lock bo:%p)\n", bo);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_LOG_E("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) {
+		/* LCOV_EXCL_START */
 		_tbm_set_last_result(TBM_BO_ERROR_MAP_FAILED);
-		TBM_TRACE("error: fail to map bo:%p\n", bo);
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
 	/* increase the map_count */
@@ -1051,7 +1206,7 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
 
 	TBM_TRACE("bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return bo_handle;
 }
@@ -1059,21 +1214,22 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
 int
 tbm_bo_unmap(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
-	tbm_bufmgr bufmgr;
+	tbm_bufmgr bufmgr = gBufMgr;
 	int ret;
 
-	bufmgr = bo->bufmgr;
+	_tbm_bufmgr_mutex_lock();
 
-	pthread_mutex_lock(&bufmgr->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);
 
 	ret = bufmgr->backend->bo_unmap(bo);
 	if (!ret) {
-		TBM_TRACE("error: bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
+		/* LCOV_EXCL_START */
+		TBM_LOG_E("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;
+		/* LCOV_EXCL_STOP */
 	}
 
 	/* decrease the map_count */
@@ -1083,7 +1239,7 @@ tbm_bo_unmap(tbm_bo bo)
 
 	_tbm_bo_unlock(bo);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return ret;
 }
@@ -1091,19 +1247,21 @@ tbm_bo_unmap(tbm_bo bo)
 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 = gBufMgr;
 	void *temp;
 
-	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);
 
 	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);
-		TBM_TRACE("error: bo1(%p) bo2(%p)\n", bo1, bo2);
-	pthread_mutex_unlock(&bo1->bufmgr->lock);
+		TBM_LOG_E("error: bo1(%p) bo2(%p)\n", bo1, bo2);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
@@ -1113,7 +1271,7 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
 	bo1->priv = bo2->priv;
 	bo2->priv = temp;
 
-	pthread_mutex_unlock(&bo1->bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return 1;
 }
@@ -1121,28 +1279,27 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
 int
 tbm_bo_locked(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+	tbm_bufmgr bufmgr = gBufMgr;
 
-	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) {
-		TBM_TRACE("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
+		TBM_LOG_E("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
-	pthread_mutex_lock(&bufmgr->lock);
-
-
 	if (bo->lock_cnt > 0) {
 		TBM_TRACE("error: bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
-		pthread_mutex_unlock(&bufmgr->lock);
+		_tbm_bufmgr_mutex_unlock();
 		return 1;
 	}
 
 	TBM_TRACE("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return 0;
 }
@@ -1151,20 +1308,25 @@ 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);
 	if (data) {
 		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) {
-		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		TBM_LOG_E("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
@@ -1172,46 +1334,58 @@ tbm_bo_add_user_data(tbm_bo bo, unsigned long key,
 
 	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)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *old_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);
+
 	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) {
 		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)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
-
 	tbm_user_data *old_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);
+
 	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;
 	}
 
@@ -1219,6 +1393,7 @@ tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **data)
 	if (!old_data) {
 		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
 		*data = NULL;
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
@@ -1226,24 +1401,31 @@ tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **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)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
+	tbm_user_data *old_data;
+
+	_tbm_bufmgr_mutex_lock();
 
-	tbm_user_data *old_data = (void *)0;
+	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) {
 		TBM_TRACE("error: bo(%p) key(%lu)\n", bo, key);
+		_tbm_bufmgr_mutex_unlock();
 		return 0;
 	}
 
@@ -1251,35 +1433,47 @@ tbm_bo_delete_user_data(tbm_bo bo, unsigned long key)
 
 	user_data_delete(old_data);
 
+	_tbm_bufmgr_mutex_unlock();
+
 	return 1;
 }
 
 unsigned int
 tbm_bufmgr_get_capability(tbm_bufmgr bufmgr)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), 0);
+	unsigned int capabilities = TBM_BUFMGR_CAPABILITY_NONE;
+
+	_tbm_bufmgr_mutex_lock();
 
-	unsigned int capability = TBM_BUFMGR_CAPABILITY_NONE;
+	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);
 
-	if (bufmgr->backend->bo_import && bufmgr->backend->bo_export)
-		capability |= TBM_BUFMGR_CAPABILITY_SHARE_KEY;
+	TBM_TRACE("tbm_bufmgr(%p) capability(%u)\n", bufmgr, bufmgr->capabilities);
 
-	if (bufmgr->backend->bo_import_fd && bufmgr->backend->bo_export_fd)
-		capability |= TBM_BUFMGR_CAPABILITY_SHARE_FD;
+	capabilities = bufmgr->capabilities;
 
-	TBM_TRACE("tbm_bufmgr(%p) capability(%d)\n", bufmgr, capability);
+	_tbm_bufmgr_mutex_unlock();
 
-	return capability;
+	return capabilities;
 }
 
 int
 tbm_bo_get_flags(tbm_bo bo)
 {
-	TBM_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 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);
+
+	flags = bo->flags;
 
 	TBM_TRACE("bo(%p)\n", bo);
 
-	return bo->flags;
+	_tbm_bufmgr_mutex_unlock();
+
+	return flags;
 }
 
 /* LCOV_EXCL_START */
@@ -1290,42 +1484,58 @@ tbm_get_last_error(void)
 }
 
 void
-tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
+tbm_bufmgr_debug_tbm_info_get(tbm_bufmgr bufmgr, char *str, int *len)
 {
-	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 app_name[255] = {0,}, title[512] = {0,};
+	tbm_surface_debug_data *debug_old_data = NULL;
 
 	pthread_mutex_lock(&gLock);
 
-	TBM_DEBUG("\n");
+	if (!TBM_BUFMGR_IS_VALID(bufmgr) || (bufmgr != gBufMgr)) {
+		TBM_LOG_E("invalid bufmgr\n");
+		pthread_mutex_unlock(&gLock);
+		return;
+	}
+
+	TBM_SNPRINTF(str, len, "\n");
 	_tbm_util_get_appname_from_pid(getpid(), app_name);
 	_tbm_util_get_appname_brief(app_name);
-	TBM_DEBUG("============TBM DEBUG: %s(%d)===========================\n",
+	TBM_SNPRINTF(str, len, "============TBM DEBUG: %s(%d)===========================\n",
 		  app_name, getpid());
-	memset(app_name, 0x0, 255 * sizeof(char));
 
-	TBM_DEBUG("[tbm_surface information]\n");
-	TBM_DEBUG("no  surface              refcnt  width  height  bpp  size      num_bos num_planes flags format              app_name\n");
+	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(debug_old_data, &bufmgr->debug_key_list, item_link) {
+			strncat(title, "  ", 3);
+			strncat(title, debug_old_data->key, strlen(debug_old_data->key) + 1);
+		}
+	}
+
+	TBM_SNPRINTF(str, len, "[tbm_surface information]\n");
+	TBM_SNPRINTF(str, len, "%s\n", title);
+
 	/* show the tbm_surface information in surf_list */
 	if (!LIST_IS_EMPTY(&bufmgr->surf_list)) {
-		LIST_FOR_EACH_ENTRY_SAFE(surf, tmp_surf, &bufmgr->surf_list, item_link) {
+		tbm_surface_h surf = NULL;
+		int surf_cnt = 0;
+
+		LIST_FOR_EACH_ENTRY(surf, &bufmgr->surf_list, item_link) {
+			char data[512] = {0,};
+			unsigned int pid;
+			int i;
+
 			pid = _tbm_surface_internal_get_debug_pid(surf);
 			if (!pid) {
 				/* if pid is null, set the self_pid */
 				pid = getpid();
 			}
 
+			memset(app_name, 0x0, 255 * sizeof(char));
 			_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",
+			snprintf(data, 255, "%-2d  %-9p    %-4d  %-5u  %-6u  %-3u  %-6u   %-2d   %-2d    %-3d  %-8s  %-15s",
 				  ++surf_cnt,
 				  surf,
 				  surf->refcnt,
@@ -1336,96 +1546,222 @@ tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
 				  surf->num_bos,
 				  surf->num_planes,
 				  surf->flags,
-				  _tbm_surface_internal_format_to_str(surf->info.format),
+				  _tbm_surface_internal_format_to_str(surf->info.format) + 11,
 				  app_name);
 
+			if (!LIST_IS_EMPTY(&bufmgr->debug_key_list)) {
+				LIST_FOR_EACH_ENTRY(debug_old_data, &bufmgr->debug_key_list, item_link) {
+					char *value;
+
+					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_SNPRINTF(str, len, "%s\n", data);
+
 			for (i = 0; i < surf->num_bos; i++) {
-				TBM_DEBUG(" bo:%-12p  %-26d%-10d\n",
+				TBM_SNPRINTF(str, len, " bo:%-12p  %-26d%-10d\n",
 					  surf->bos[i],
 					  surf->bos[i]->ref_cnt,
-					  tbm_bo_size(surf->bos[i]) / 1024);
+					  bufmgr->backend->bo_size(surf->bos[i]) / 1024);
 			}
-
-			memset(app_name, 0x0, 255 * sizeof(char));
 		}
-	} else {
-		TBM_DEBUG("no tbm_surfaces.\n");
-	}
-	TBM_DEBUG("\n");
+	} else
+		TBM_SNPRINTF(str, len, " no tbm_surfaces.\n");
+	TBM_SNPRINTF(str, len, "\n");
 
-	TBM_DEBUG("[tbm_bo information]\n");
-	TBM_DEBUG("no  bo                   refcnt  size     lock_cnt map_cnt flags surface\n");
+	TBM_SNPRINTF(str, len, "[tbm_bo information]\n");
+	TBM_SNPRINTF(str, len, "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   %-6d%-12d%-9d%-9d%-4d%-11p\n",
+		int bo_cnt = 0;
+		tbm_bo bo = NULL;
+
+		LIST_FOR_EACH_ENTRY(bo, &bufmgr->bo_list, item_link) {
+			TBM_SNPRINTF(str, len, "%-4d%-11p   %-4d  %-6d     %-5d     %-4u    %-3d  %-11p\n",
 				  ++bo_cnt,
 				  bo,
 				  bo->ref_cnt,
-				  tbm_bo_size(bo) / 1024,
+				  bufmgr->backend->bo_size(bo) / 1024,
 				  bo->lock_cnt,
 				  bo->map_cnt,
 				  bo->flags,
 				  bo->surface);
 		}
-	} else {
-		TBM_DEBUG("no tbm_bos.\n");
-	}
-	TBM_DEBUG("\n");
+	} else
+		TBM_SNPRINTF(str, len, "no tbm_bos.\n");
+	TBM_SNPRINTF(str, len, "\n");
 
-	TBM_DEBUG("===============================================================\n");
+	TBM_SNPRINTF(str, len, "===============================================================\n");
 
 	pthread_mutex_unlock(&gLock);
+}
 
+void
+tbm_bufmgr_debug_show(tbm_bufmgr bufmgr)
+{
+	char str[1024*4];
+	int len = sizeof(str);
+	tbm_bufmgr_debug_tbm_info_get(bufmgr, str, &len);
+	TBM_DEBUG("	%s", str);
 }
 
 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();
+}
+
+void
+tbm_bufmgr_debug_dump_set_scale(double scale)
+{
+	pthread_mutex_lock(&gLock);
+	scale_factor = scale;
+	pthread_mutex_unlock(&gLock);
+}
+
+int
+tbm_bufmgr_debug_queue_dump(char *path, int count, int onoff)
+{
+	pthread_mutex_lock(&gLock);
+
+	if (onoff == 0) {
+		TBM_LOG_D("count=%d onoff=%d\n", count, onoff);
+		b_dump_queue = 0;
+		tbm_surface_internal_dump_end();
+	} else {
+		int w, h;
+
+		if (path == NULL) {
+			TBM_LOG_E("path is null");
+			pthread_mutex_unlock(&gLock);
+			return 0;
+		}
+		TBM_LOG_D("path=%s count=%d onoff=%d\n", path, count, onoff);
+
+		if (_tbm_util_get_max_surface_size(&w, &h) == 0) {
+			TBM_LOG_E("Fail to get tbm_surface size.\n");
+			pthread_mutex_unlock(&gLock);
+			return 0;
+		}
+
+		tbm_surface_internal_dump_with_scale_start(path, w, h, count, scale_factor);
+		scale_factor = 0;
+
+		b_dump_queue = 1;
+	}
+
+	pthread_mutex_unlock(&gLock);
+	return 1;
+}
+
+int
+tbm_bufmgr_debug_dump_all(char *path)
+{
+	int w, h, count = 0;
+	tbm_surface_h surface = 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_E("No tbm_surface.\n");
+		pthread_mutex_unlock(&gLock);
+		return 1;
+	}
+
+	tbm_surface_internal_dump_with_scale_start(path, w, h, count, scale_factor);
+	scale_factor = 0;
+
+	LIST_FOR_EACH_ENTRY(surface, &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 */
+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)
 {
-	TBM_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), 0);
-
 	int ret;
 
-	pthread_mutex_lock(&bufmgr->lock);
+	_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);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_TRACE("skip: 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);
-		pthread_mutex_unlock(&bufmgr->lock);
+		TBM_LOG_E("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);
 
-	pthread_mutex_unlock(&bufmgr->lock);
+	_tbm_bufmgr_mutex_unlock();
 
 	return 1;
 }
+
+int tbm_bufmgr_get_fd_limit(void)
+{
+	struct rlimit lim;
+
+	if (getrlimit(RLIMIT_NOFILE, &lim))
+		return 1024;
+
+	return (int)lim.rlim_cur;
+}
 /* LCOV_EXCL_STOP */