/* *  include/asm-s390/debug.h *   S/390 debug facility * *    Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH, *                             IBM Corporation */#ifndef DEBUG_H#define DEBUG_H/* Note: * struct __debug_entry must be defined outside of #ifdef __KERNEL__  * in order to allow a user program to analyze the 'raw'-view. */struct __debug_entry{        union {                struct {                        unsigned long long clock:52;                        unsigned long long exception:1;                        unsigned long long level:3;                        unsigned long long cpuid:8;                } fields;                unsigned long long stck;        } id;        void* caller;} __attribute__((packed));#define __DEBUG_FEATURE_VERSION      1  /* version of debug feature */#ifdef __KERNEL__#include <linux/version.h>#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)) #include <asm/spinlock.h>#else #include <linux/spinlock.h>#endif /* LINUX_VERSION_CODE */#include <linux/kernel.h>#include <linux/time.h>#include <linux/proc_fs.h>#define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */#define DEBUG_OFF_LEVEL            -1 /* level where debug is switched off */#define DEBUG_FLUSH_ALL            -1 /* parameter to flush all areas */#define DEBUG_MAX_VIEWS            10 /* max number of views in proc fs */#define DEBUG_MAX_PROCF_LEN        16 /* max length for a proc file name */#define DEBUG_DEFAULT_LEVEL        3  /* initial debug level */#define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */#define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */                                             /* the entry information */#define STCK(x)	asm volatile ("STCK %0" : "=m" (x) : : "cc" )typedef struct __debug_entry debug_entry_t;struct debug_view;typedef struct debug_info {		struct debug_info* next;	struct debug_info* prev;	atomic_t ref_count;	spinlock_t lock;				int level;	int nr_areas;	int page_order;	int buf_size;	int entry_size;		debug_entry_t** areas;	int active_area;	int *active_entry;	struct proc_dir_entry* proc_root_entry;	struct proc_dir_entry* proc_entries[DEBUG_MAX_VIEWS];	struct debug_view* views[DEBUG_MAX_VIEWS];		char name[DEBUG_MAX_PROCF_LEN];} debug_info_t;typedef int (debug_header_proc_t) (debug_info_t* id,				   struct debug_view* view,				   int area,				   debug_entry_t* entry,				   char* out_buf);typedef int (debug_format_proc_t) (debug_info_t* id,				   struct debug_view* view, char* out_buf,				   const char* in_buf);typedef int (debug_prolog_proc_t) (debug_info_t* id,				   struct debug_view* view,				   char* out_buf);typedef int (debug_input_proc_t) (debug_info_t* id,				  struct debug_view* view,				  struct file* file, const char* user_buf,				  size_t in_buf_size, loff_t* offset);int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,		         int area, debug_entry_t* entry, char* out_buf);										struct debug_view {	char name[DEBUG_MAX_PROCF_LEN];	debug_prolog_proc_t* prolog_proc;	debug_header_proc_t* header_proc;	debug_format_proc_t* format_proc;	debug_input_proc_t*  input_proc;	void*                private_data;};extern struct debug_view debug_hex_ascii_view;extern struct debug_view debug_raw_view;extern struct debug_view debug_sprintf_view;/* do NOT use the _common functions */debug_entry_t* debug_event_common(debug_info_t* id, int level,                                   const void* data, int length);debug_entry_t* debug_exception_common(debug_info_t* id, int level,                                       const void* data, int length);/* Debug Feature API: */debug_info_t* debug_register(char* name, int pages_index, int nr_areas,                             int buf_size);void debug_unregister(debug_info_t* id);void debug_set_level(debug_info_t* id, int new_level);extern inline debug_entry_t* debug_event(debug_info_t* id, int level, void* data, int length){	if ((!id) || (level > id->level)) return NULL;        return debug_event_common(id,level,data,length);}extern inline debug_entry_t* debug_int_event(debug_info_t* id, int level, unsigned int tag){        unsigned int t=tag;	if ((!id) || (level > id->level)) return NULL;        return debug_event_common(id,level,&t,sizeof(unsigned int));}extern inline debug_entry_t *debug_long_event (debug_info_t* id, int level, unsigned long tag){        unsigned long t=tag;	if ((!id) || (level > id->level)) return NULL;        return debug_event_common(id,level,&t,sizeof(unsigned long));}extern inline debug_entry_t* debug_text_event(debug_info_t* id, int level, const char* txt){	if ((!id) || (level > id->level)) return NULL;        return debug_event_common(id,level,txt,strlen(txt));}extern debug_entry_t *debug_sprintf_event(debug_info_t* id,int level,char *string,...);extern inline debug_entry_t* debug_exception(debug_info_t* id, int level, void* data, int length){	if ((!id) || (level > id->level)) return NULL;        return debug_exception_common(id,level,data,length);}extern inline debug_entry_t* debug_int_exception(debug_info_t* id, int level, unsigned int tag){        unsigned int t=tag;	if ((!id) || (level > id->level)) return NULL;        return debug_exception_common(id,level,&t,sizeof(unsigned int));}extern inline debug_entry_t * debug_long_exception (debug_info_t* id, int level, unsigned long tag){        unsigned long t=tag;	if ((!id) || (level > id->level)) return NULL;        return debug_exception_common(id,level,&t,sizeof(unsigned long));}extern inline debug_entry_t* debug_text_exception(debug_info_t* id, int level, const char* txt){	if ((!id) || (level > id->level)) return NULL;        return debug_exception_common(id,level,txt,strlen(txt));}extern debug_entry_t *debug_sprintf_exception(debug_info_t* id,int level,char *string,...);int debug_register_view(debug_info_t* id, struct debug_view* view);int debug_unregister_view(debug_info_t* id, struct debug_view* view);/*   define the debug levels:   - 0 No debugging output to console or syslog   - 1 Log internal errors to syslog, ignore check conditions    - 2 Log internal errors and check conditions to syslog   - 3 Log internal errors to console, log check conditions to syslog   - 4 Log internal errors and check conditions to console   - 5 panic on internal errors, log check conditions to console   - 6 panic on both, internal errors and check conditions */#ifndef DEBUG_LEVEL#define DEBUG_LEVEL 4#endif#define INTERNAL_ERRMSG(x,y...) "E" __FILE__ "%d: " x, __LINE__, y#define INTERNAL_WRNMSG(x,y...) "W" __FILE__ "%d: " x, __LINE__, y#define INTERNAL_INFMSG(x,y...) "I" __FILE__ "%d: " x, __LINE__, y#define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y#if DEBUG_LEVEL > 0#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )#define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )#define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )#define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )#else#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )#endif				/* DASD_DEBUG */#if DASD_DEBUG > 4#define INTERNAL_ERROR(x...) PRINT_FATAL ( INTERNAL_ERRMSG ( x ) )#elif DASD_DEBUG > 2#define INTERNAL_ERROR(x...) PRINT_ERR ( INTERNAL_ERRMSG ( x ) )#elif DASD_DEBUG > 0#define INTERNAL_ERROR(x...) PRINT_WARN ( INTERNAL_ERRMSG ( x ) )#else#define INTERNAL_ERROR(x...)#endif				/* DASD_DEBUG */#if DASD_DEBUG > 5#define INTERNAL_CHECK(x...) PRINT_FATAL ( INTERNAL_CHKMSG ( x ) )#elif DASD_DEBUG > 3#define INTERNAL_CHECK(x...) PRINT_ERR ( INTERNAL_CHKMSG ( x ) )#elif DASD_DEBUG > 1#define INTERNAL_CHECK(x...) PRINT_WARN ( INTERNAL_CHKMSG ( x ) )#else#define INTERNAL_CHECK(x...)#endif				/* DASD_DEBUG */#undef DEBUG_MALLOC#ifdef DEBUG_MALLOCvoid *b;#define kmalloc(x...) (PRINT_INFO(" kmalloc %p\n",b=kmalloc(x)),b)#define kfree(x) PRINT_INFO(" kfree %p\n",x);kfree(x)#define get_free_page(x...) (PRINT_INFO(" gfp %p\n",b=get_free_page(x)),b)#define __get_free_pages(x...) (PRINT_INFO(" gfps %p\n",b=__get_free_pages(x)),b)#endif				/* DEBUG_MALLOC */#endif				/* __KERNEL__ */#endif				/* DEBUG_H */