79 static int debug_prolog_level_fn(debug_info_t * id,
81 static int debug_input_level_fn(debug_info_t * id, struct debug_view *view,
84 static int debug_prolog_pages_fn(debug_info_t * id,
86 static int debug_input_pages_fn(debug_info_t * id, struct debug_view *view,
89 static int debug_input_flush_fn(debug_info_t * id, struct debug_view *view,
92 static int debug_hex_ascii_format_fn(debug_info_t * id, struct debug_view *view,
94 static int debug_raw_format_fn(debug_info_t * id,
97 static int debug_raw_header_fn(debug_info_t * id, struct debug_view *view,
100 static int debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
474 	if (act_entry->id.stck == 0LL)  in debug_format_entry()
494 	debug_info_t *id;  in debug_next_entry()  local
496 	id = p_info->debug_info_snap;  in debug_next_entry()
502 	if(!id->areas)  in debug_next_entry()
504 	p_info->act_entry += id->entry_size;  in debug_next_entry()
506 	if (p_info->act_entry > (PAGE_SIZE - id->entry_size)){  in debug_next_entry()
510 		if((p_info->act_page % id->pages_per_area) == 0) {  in debug_next_entry()
515         	if(p_info->act_area >= id->nr_areas)  in debug_next_entry()
744 debug_unregister(debug_info_t * id)  in debug_unregister()  argument
746 	if (!id)  in debug_unregister()
749 	debug_info_put(id);  in debug_unregister()
762 debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)  in debug_set_size()  argument
768 	if(!id || (nr_areas <= 0) || (pages_per_area < 0))  in debug_set_size()
781 	spin_lock_irqsave(&id->lock,flags);  in debug_set_size()
782 	debug_areas_free(id);  in debug_set_size()
783 	id->areas = new_areas;  in debug_set_size()
784 	id->nr_areas = nr_areas;  in debug_set_size()
785 	id->pages_per_area = pages_per_area;  in debug_set_size()
786 	id->active_area = 0;  in debug_set_size()
787 	memset(id->active_entries,0,sizeof(int)*id->nr_areas);  in debug_set_size()
788 	memset(id->active_pages, 0, sizeof(int)*id->nr_areas);  in debug_set_size()
789 	spin_unlock_irqrestore(&id->lock,flags);  in debug_set_size()
790 	pr_info("%s: set new size (%i pages)\n" ,id->name, pages_per_area);  in debug_set_size()
801 debug_set_level(debug_info_t* id, int new_level)  in debug_set_level()  argument
804 	if(!id)  in debug_set_level()
806 	spin_lock_irqsave(&id->lock,flags);  in debug_set_level()
808                 id->level = DEBUG_OFF_LEVEL;  in debug_set_level()
809 		pr_info("%s: switched off\n",id->name);  in debug_set_level()
812                         id->name, new_level, 0, DEBUG_MAX_LEVEL);  in debug_set_level()
814                 id->level = new_level;  in debug_set_level()
816 	spin_unlock_irqrestore(&id->lock,flags);  in debug_set_level()
826 proceed_active_entry(debug_info_t * id)  in proceed_active_entry()  argument
828 	if ((id->active_entries[id->active_area] += id->entry_size)  in proceed_active_entry()
829 	    > (PAGE_SIZE - id->entry_size)){  in proceed_active_entry()
830 		id->active_entries[id->active_area] = 0;  in proceed_active_entry()
831 		id->active_pages[id->active_area] =  in proceed_active_entry()
832 			(id->active_pages[id->active_area] + 1) %  in proceed_active_entry()
833 			id->pages_per_area;  in proceed_active_entry()
843 proceed_active_area(debug_info_t * id)  in proceed_active_area()  argument
845 	id->active_area++;  in proceed_active_area()
846 	id->active_area = id->active_area % id->nr_areas;  in proceed_active_area()
854 get_active_entry(debug_info_t * id)  in get_active_entry()  argument
856 	return (debug_entry_t *) (((char *) id->areas[id->active_area]  in get_active_entry()
857 					[id->active_pages[id->active_area]]) +  in get_active_entry()
858 					id->active_entries[id->active_area]);  in get_active_entry()
867 debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,  in debug_finish_entry()  argument
870 	active->id.stck = get_tod_clock_fast();  in debug_finish_entry()
871 	active->id.fields.cpuid = smp_processor_id();  in debug_finish_entry()
873 	active->id.fields.exception = exception;  in debug_finish_entry()
874 	active->id.fields.level     = level;  in debug_finish_entry()
875 	proceed_active_entry(id);  in debug_finish_entry()
877 		proceed_active_area(id);  in debug_finish_entry()
951 debug_event_common(debug_info_t * id, int level, const void *buf, int len)  in debug_event_common()  argument
956 	if (!debug_active || !id->areas)  in debug_event_common()
959 		if (!spin_trylock_irqsave(&id->lock, flags))  in debug_event_common()
962 		spin_lock_irqsave(&id->lock, flags);  in debug_event_common()
963 	active = get_active_entry(id);  in debug_event_common()
964 	memset(DEBUG_DATA(active), 0, id->buf_size);  in debug_event_common()
965 	memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));  in debug_event_common()
966 	debug_finish_entry(id, active, level, 0);  in debug_event_common()
967 	spin_unlock_irqrestore(&id->lock, flags);  in debug_event_common()
979 *debug_exception_common(debug_info_t * id, int level, const void *buf, int len)  in debug_exception_common()  argument
984 	if (!debug_active || !id->areas)  in debug_exception_common()
987 		if (!spin_trylock_irqsave(&id->lock, flags))  in debug_exception_common()
990 		spin_lock_irqsave(&id->lock, flags);  in debug_exception_common()
991 	active = get_active_entry(id);  in debug_exception_common()
992 	memset(DEBUG_DATA(active), 0, id->buf_size);  in debug_exception_common()
993 	memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));  in debug_exception_common()
994 	debug_finish_entry(id, active, level, 1);  in debug_exception_common()
995 	spin_unlock_irqrestore(&id->lock, flags);  in debug_exception_common()
1022 __debug_sprintf_event(debug_info_t *id, int level, char *string, ...)  in __debug_sprintf_event()  argument
1030 	if (!debug_active || !id->areas)  in __debug_sprintf_event()
1035 		if (!spin_trylock_irqsave(&id->lock, flags))  in __debug_sprintf_event()
1038 		spin_lock_irqsave(&id->lock, flags);  in __debug_sprintf_event()
1039 	active = get_active_entry(id);  in __debug_sprintf_event()
1043 	for(idx=0;idx<min(numargs,(int)(id->buf_size / sizeof(long))-1);idx++)  in __debug_sprintf_event()
1046 	debug_finish_entry(id, active, level, 0);  in __debug_sprintf_event()
1047 	spin_unlock_irqrestore(&id->lock, flags);  in __debug_sprintf_event()
1058 __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)  in __debug_sprintf_exception()  argument
1066 	if (!debug_active || !id->areas)  in __debug_sprintf_exception()
1072 		if (!spin_trylock_irqsave(&id->lock, flags))  in __debug_sprintf_exception()
1075 		spin_lock_irqsave(&id->lock, flags);  in __debug_sprintf_exception()
1076 	active = get_active_entry(id);  in __debug_sprintf_exception()
1080 	for(idx=0;idx<min(numargs,(int)(id->buf_size / sizeof(long))-1);idx++)  in __debug_sprintf_exception()
1083 	debug_finish_entry(id, active, level, 1);  in __debug_sprintf_exception()
1084 	spin_unlock_irqrestore(&id->lock, flags);  in __debug_sprintf_exception()
1095 debug_register_view(debug_info_t * id, struct debug_view *view)  in debug_register_view()  argument
1103 	if (!id)  in debug_register_view()
1105 	mode = (id->mode | S_IFREG) & ~S_IXUGO;  in debug_register_view()
1110 	pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,  in debug_register_view()
1111 				id , &debug_file_ops);  in debug_register_view()
1114 		       "memory\n", id->name,view->name);  in debug_register_view()
1118 	spin_lock_irqsave(&id->lock, flags);  in debug_register_view()
1120 		if (!id->views[i])  in debug_register_view()
1125 		       "number of views %i\n", id->name, view->name, i);  in debug_register_view()
1128 		id->views[i] = view;  in debug_register_view()
1129 		id->debugfs_entries[i] = pde;  in debug_register_view()
1131 	spin_unlock_irqrestore(&id->lock, flags);  in debug_register_view()
1144 debug_unregister_view(debug_info_t * id, struct debug_view *view)  in debug_unregister_view()  argument
1150 	if (!id)  in debug_unregister_view()
1152 	spin_lock_irqsave(&id->lock, flags);  in debug_unregister_view()
1154 		if (id->views[i] == view)  in debug_unregister_view()
1160 		dentry = id->debugfs_entries[i];  in debug_unregister_view()
1161 		id->views[i] = NULL;  in debug_unregister_view()
1162 		id->debugfs_entries[i] = NULL;  in debug_unregister_view()
1164 	spin_unlock_irqrestore(&id->lock, flags);  in debug_unregister_view()
1214 debug_prolog_pages_fn(debug_info_t * id,  in debug_prolog_pages_fn()  argument
1217 	return sprintf(out_buf, "%i\n", id->pages_per_area);  in debug_prolog_pages_fn()
1225 debug_input_pages_fn(debug_info_t * id, struct debug_view *view,  in debug_input_pages_fn()  argument
1248 	rc = debug_set_size(id,id->nr_areas, new_pages);  in debug_input_pages_fn()
1266 debug_prolog_level_fn(debug_info_t * id, struct debug_view *view, char *out_buf)  in debug_prolog_level_fn()  argument
1270 	if(id->level == DEBUG_OFF_LEVEL) {  in debug_prolog_level_fn()
1274 		rc = sprintf(out_buf, "%i\n", id->level);  in debug_prolog_level_fn()
1284 debug_input_level_fn(debug_info_t * id, struct debug_view *view,  in debug_input_level_fn()  argument
1303 		debug_set_level(id, DEBUG_OFF_LEVEL);  in debug_input_level_fn()
1314 		debug_set_level(id, new_level);  in debug_input_level_fn()
1329 static void debug_flush(debug_info_t* id, int area)  in debug_flush()  argument
1334         if(!id || !id->areas)  in debug_flush()
1336         spin_lock_irqsave(&id->lock,flags);  in debug_flush()
1338                 id->active_area = 0;  in debug_flush()
1339                 memset(id->active_entries, 0, id->nr_areas * sizeof(int));  in debug_flush()
1340                 for (i = 0; i < id->nr_areas; i++) {  in debug_flush()
1341 			id->active_pages[i] = 0;  in debug_flush()
1342 			for(j = 0; j < id->pages_per_area; j++) {  in debug_flush()
1343                         	memset(id->areas[i][j], 0, PAGE_SIZE);  in debug_flush()
1346         } else if(area >= 0 && area < id->nr_areas) {  in debug_flush()
1347                 id->active_entries[area] = 0;  in debug_flush()
1348 		id->active_pages[area] = 0;  in debug_flush()
1349 		for(i = 0; i < id->pages_per_area; i++) {  in debug_flush()
1350                 	memset(id->areas[area][i],0,PAGE_SIZE);  in debug_flush()
1353         spin_unlock_irqrestore(&id->lock,flags);  in debug_flush()
1361 debug_input_flush_fn(debug_info_t * id, struct debug_view *view,  in debug_input_flush_fn()  argument
1379                 debug_flush(id, DEBUG_FLUSH_ALL);  in debug_input_flush_fn()
1384                 debug_flush(id, area);  in debug_input_flush_fn()
1401 debug_raw_header_fn(debug_info_t * id, struct debug_view *view,  in debug_raw_header_fn()  argument
1416 debug_raw_format_fn(debug_info_t * id, struct debug_view *view,  in debug_raw_format_fn()  argument
1421 	rc = id->buf_size;  in debug_raw_format_fn()
1422 	memcpy(out_buf, in_buf, id->buf_size);  in debug_raw_format_fn()
1431 debug_hex_ascii_format_fn(debug_info_t * id, struct debug_view *view,  in debug_hex_ascii_format_fn()  argument
1436 	for (i = 0; i < id->buf_size; i++) {  in debug_hex_ascii_format_fn()
1441 	for (i = 0; i < id->buf_size; i++) {  in debug_hex_ascii_format_fn()
1457 debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,  in debug_dflt_header_fn()  argument
1466 	level = entry->id.fields.level;  in debug_dflt_header_fn()
1467 	stck_to_timespec(entry->id.stck, &time_spec);  in debug_dflt_header_fn()
1469 	if (entry->id.fields.exception)  in debug_dflt_header_fn()
1476 		      except_str, entry->id.fields.cpuid, (void *) caller);  in debug_dflt_header_fn()
1489 debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,  in debug_sprintf_format_fn()  argument
1496 	num_longs = id->buf_size /  sizeof(long);   in debug_sprintf_format_fn()