[mirror_ubuntu-jammy-kernel.git] / include / drm / drm_print.h

/*
 * Copyright (C) 2016 Red Hat
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 * Rob Clark <robdclark@gmail.com>
 */

#ifndef DRM_PRINT_H_
#define DRM_PRINT_H_

#include <linux/compiler.h>
#include <linux/printk.h>
#include <linux/seq_file.h>
#include <linux/device.h>

/**
 * DOC: print
 *
 * A simple wrapper for dev_printk(), seq_printf(), etc.  Allows same
 * debug code to be used for both debugfs and printk logging.
 *
 * For example::
 *
 *     void log_some_info(struct drm_printer *p)
 *     {
 *             drm_printf(p, "foo=%d\n", foo);
 *             drm_printf(p, "bar=%d\n", bar);
 *     }
 *
 *     #ifdef CONFIG_DEBUG_FS
 *     void debugfs_show(struct seq_file *f)
 *     {
 *             struct drm_printer p = drm_seq_file_printer(f);
 *             log_some_info(&p);
 *     }
 *     #endif
 *
 *     void some_other_function(...)
 *     {
 *             struct drm_printer p = drm_info_printer(drm->dev);
 *             log_some_info(&p);
 *     }
 */

/**
 * struct drm_printer - drm output "stream"
 *
 * Do not use struct members directly.  Use drm_printer_seq_file(),
 * drm_printer_info(), etc to initialize.  And drm_printf() for output.
 */
struct drm_printer {
	/* private: */
	void (*printfn)(struct drm_printer *p, struct va_format *vaf);
	void *arg;
	const char *prefix;
};

void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf);
void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf);
void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);

__printf(2, 3)
void drm_printf(struct drm_printer *p, const char *f, ...);


/**
 * drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file
 * @f:  the &struct seq_file to output to
 *
 * RETURNS:
 * The &drm_printer object
 */
static inline struct drm_printer drm_seq_file_printer(struct seq_file *f)
{
	struct drm_printer p = {
		.printfn = __drm_printfn_seq_file,
		.arg = f,
	};
	return p;
}

/**
 * drm_info_printer - construct a &drm_printer that outputs to dev_printk()
 * @dev: the &struct device pointer
 *
 * RETURNS:
 * The &drm_printer object
 */
static inline struct drm_printer drm_info_printer(struct device *dev)
{
	struct drm_printer p = {
		.printfn = __drm_printfn_info,
		.arg = dev,
	};
	return p;
}

/**
 * drm_debug_printer - construct a &drm_printer that outputs to pr_debug()
 * @prefix: debug output prefix
 *
 * RETURNS:
 * The &drm_printer object
 */
static inline struct drm_printer drm_debug_printer(const char *prefix)
{
	struct drm_printer p = {
		.printfn = __drm_printfn_debug,
		.prefix = prefix
	};
	return p;
}

/*
 * The following categories are defined:
 *
 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
 *	 This is the category used by the DRM_DEBUG() macro.
 *
 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ...
 *	   This is the category used by the DRM_DEBUG_DRIVER() macro.
 *
 * KMS: used in the modesetting code.
 *	This is the category used by the DRM_DEBUG_KMS() macro.
 *
 * PRIME: used in the prime code.
 *	  This is the category used by the DRM_DEBUG_PRIME() macro.
 *
 * ATOMIC: used in the atomic code.
 *	  This is the category used by the DRM_DEBUG_ATOMIC() macro.
 *
 * VBL: used for verbose debug message in the vblank code
 *	  This is the category used by the DRM_DEBUG_VBL() macro.
 *
 * Enabling verbose debug messages is done through the drm.debug parameter,
 * each category being enabled by a bit.
 *
 * drm.debug=0x1 will enable CORE messages
 * drm.debug=0x2 will enable DRIVER messages
 * drm.debug=0x3 will enable CORE and DRIVER messages
 * ...
 * drm.debug=0x3f will enable all messages
 *
 * An interesting feature is that it's possible to enable verbose logging at
 * run-time by echoing the debug value in its sysfs node:
 *   # echo 0xf > /sys/module/drm/parameters/debug
 */
#define DRM_UT_NONE		0x00
#define DRM_UT_CORE		0x01
#define DRM_UT_DRIVER		0x02
#define DRM_UT_KMS		0x04
#define DRM_UT_PRIME		0x08
#define DRM_UT_ATOMIC		0x10
#define DRM_UT_VBL		0x20
#define DRM_UT_STATE		0x40

__printf(6, 7)
void drm_dev_printk(const struct device *dev, const char *level,
		    unsigned int category, const char *function_name,
		    const char *prefix, const char *format, ...);
__printf(3, 4)
void drm_printk(const char *level, unsigned int category,
		const char *format, ...);

/* Macros to make printk easier */

#define _DRM_PRINTK(once, level, fmt, ...)				\
	do {								\
		printk##once(KERN_##level "[" DRM_NAME "] " fmt,	\
			     ##__VA_ARGS__);				\
	} while (0)

#define DRM_INFO(fmt, ...)						\
	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
#define DRM_NOTE(fmt, ...)						\
	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
#define DRM_WARN(fmt, ...)						\
	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)

#define DRM_INFO_ONCE(fmt, ...)						\
	_DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
#define DRM_NOTE_ONCE(fmt, ...)						\
	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
#define DRM_WARN_ONCE(fmt, ...)						\
	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)

/**
 * Error output.
 *
 * @dev: device pointer
 * @fmt: printf() like format string.
 */
#define DRM_DEV_ERROR(dev, fmt, ...)					\
	drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\
		       fmt, ##__VA_ARGS__)
#define DRM_ERROR(fmt, ...)						\
	drm_printk(KERN_ERR, DRM_UT_NONE, fmt,	##__VA_ARGS__)

/**
 * Rate limited error output.  Like DRM_ERROR() but won't flood the log.
 *
 * @dev: device pointer
 * @fmt: printf() like format string.
 */
#define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...)			\
({									\
	static DEFINE_RATELIMIT_STATE(_rs,				\
				      DEFAULT_RATELIMIT_INTERVAL,	\
				      DEFAULT_RATELIMIT_BURST);		\
									\
	if (__ratelimit(&_rs))						\
		DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__);			\
})
#define DRM_ERROR_RATELIMITED(fmt, ...)					\
	DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)

#define DRM_DEV_INFO(dev, fmt, ...)					\
	drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt,	\
		       ##__VA_ARGS__)

#define DRM_DEV_INFO_ONCE(dev, fmt, ...)				\
({									\
	static bool __print_once __read_mostly;				\
	if (!__print_once) {						\
		__print_once = true;					\
		DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__);			\
	}								\
})

/**
 * Debug output.
 *
 * @dev: device pointer
 * @fmt: printf() like format string.
 */
#define DRM_DEV_DEBUG(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt,	\
		       ##args)
#define DRM_DEBUG(fmt, ...)						\
	drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__)

#define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "",	\
		       fmt, ##args)
#define DRM_DEBUG_DRIVER(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)

#define DRM_DEV_DEBUG_KMS(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt,	\
		       ##args)
#define DRM_DEBUG_KMS(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__)

#define DRM_DEV_DEBUG_PRIME(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "",	\
		       fmt, ##args)
#define DRM_DEBUG_PRIME(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__)

#define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "",	\
		       fmt, ##args)
#define DRM_DEBUG_ATOMIC(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)

#define DRM_DEV_DEBUG_VBL(dev, fmt, args...)				\
	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt,	\
		       ##args)
#define DRM_DEBUG_VBL(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__)

#define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...)	\
({									\
	static DEFINE_RATELIMIT_STATE(_rs,				\
				      DEFAULT_RATELIMIT_INTERVAL,	\
				      DEFAULT_RATELIMIT_BURST);		\
	if (__ratelimit(&_rs))						\
		drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level,	\
			       __func__, "", fmt, ##args);		\
})

/**
 * Rate limited debug output. Like DRM_DEBUG() but won't flood the log.
 *
 * @dev: device pointer
 * @fmt: printf() like format string.
 */
#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...)			\
	DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)
#define DRM_DEBUG_RATELIMITED(fmt, args...)				\
	DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)
#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...)		\
	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)
#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...)			\
	DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)
#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...)		\
	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)
#define DRM_DEBUG_KMS_RATELIMITED(fmt, args...)				\
	DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)
#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...)		\
	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)
#define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...)			\
	DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args)

#endif /* DRM_PRINT_H_ */
Commit	Line	Data
d8187177 RC	1	/*
	2	* Copyright (C) 2016 Red Hat
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors:
	23	* Rob Clark <robdclark@gmail.com>
	24	*/
	25
	26	#ifndef DRM_PRINT_H_
	27	#define DRM_PRINT_H_
	28
3c6d6e0f JP	29	#include <linux/compiler.h>
3c6d6e0f JP	30	#include <linux/printk.h>
d8187177 RC	31	#include <linux/seq_file.h>
	32	#include <linux/device.h>
	33
	34	/**
	35	* DOC: print
	36	*
	37	* A simple wrapper for dev_printk(), seq_printf(), etc. Allows same
	38	* debug code to be used for both debugfs and printk logging.
	39	*
	40	* For example::
	41	*
	42	* void log_some_info(struct drm_printer *p)
	43	* {
	44	* drm_printf(p, "foo=%d\n", foo);
	45	* drm_printf(p, "bar=%d\n", bar);
	46	* }
	47	*
	48	* #ifdef CONFIG_DEBUG_FS
	49	* void debugfs_show(struct seq_file *f)
	50	* {
	51	* struct drm_printer p = drm_seq_file_printer(f);
	52	* log_some_info(&p);
	53	* }
	54	* #endif
	55	*
	56	* void some_other_function(...)
	57	* {
	58	* struct drm_printer p = drm_info_printer(drm->dev);
	59	* log_some_info(&p);
	60	* }
	61	*/
	62
	63	/**
	64	* struct drm_printer - drm output "stream"
d8187177 RC	65	*
	66	* Do not use struct members directly. Use drm_printer_seq_file(),
	67	* drm_printer_info(), etc to initialize. And drm_printf() for output.
	68	*/
	69	struct drm_printer {
3d387d92	70	/* private: */
d8187177 RC	71	void (printfn)(struct drm_printer p, struct va_format *vaf);
d8187177 RC	72	void *arg;
3d387d92	73	const char *prefix;
d8187177 RC	74	};
	75
	76	void __drm_printfn_seq_file(struct drm_printer p, struct va_format vaf);
	77	void __drm_printfn_info(struct drm_printer p, struct va_format vaf);
3d387d92	78	void __drm_printfn_debug(struct drm_printer p, struct va_format vaf);
d8187177	79
3c6d6e0f	80	__printf(2, 3)
d8187177 RC	81	void drm_printf(struct drm_printer p, const char f, ...);
	82
	83
	84	/**
	85	* drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file
ea0dd85a	86	* @f: the &struct seq_file to output to
d8187177 RC	87	*
	88	* RETURNS:
	89	* The &drm_printer object
	90	*/
	91	static inline struct drm_printer drm_seq_file_printer(struct seq_file *f)
	92	{
	93	struct drm_printer p = {
	94	.printfn = __drm_printfn_seq_file,
	95	.arg = f,
	96	};
	97	return p;
	98	}
	99
	100	/**
	101	* drm_info_printer - construct a &drm_printer that outputs to dev_printk()
ea0dd85a	102	* @dev: the &struct device pointer
d8187177 RC	103	*
	104	* RETURNS:
	105	* The &drm_printer object
	106	*/
	107	static inline struct drm_printer drm_info_printer(struct device *dev)
	108	{
	109	struct drm_printer p = {
	110	.printfn = __drm_printfn_info,
	111	.arg = dev,
	112	};
	113	return p;
	114	}
	115
3d387d92 DV	116	/**
	117	* drm_debug_printer - construct a &drm_printer that outputs to pr_debug()
	118	* @prefix: debug output prefix
	119	*
	120	* RETURNS:
	121	* The &drm_printer object
	122	*/
	123	static inline struct drm_printer drm_debug_printer(const char *prefix)
	124	{
	125	struct drm_printer p = {
	126	.printfn = __drm_printfn_debug,
	127	.prefix = prefix
	128	};
	129	return p;
	130	}
02c9656b HM	131
	132	/*
	133	* The following categories are defined:
	134	*
	135	* CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
	136	* This is the category used by the DRM_DEBUG() macro.
	137	*
	138	* DRIVER: Used in the vendor specific part of the driver: i915, radeon, ...
	139	* This is the category used by the DRM_DEBUG_DRIVER() macro.
	140	*
	141	* KMS: used in the modesetting code.
	142	* This is the category used by the DRM_DEBUG_KMS() macro.
	143	*
	144	* PRIME: used in the prime code.
	145	* This is the category used by the DRM_DEBUG_PRIME() macro.
	146	*
	147	* ATOMIC: used in the atomic code.
	148	* This is the category used by the DRM_DEBUG_ATOMIC() macro.
	149	*
	150	* VBL: used for verbose debug message in the vblank code
	151	* This is the category used by the DRM_DEBUG_VBL() macro.
	152	*
	153	* Enabling verbose debug messages is done through the drm.debug parameter,
	154	* each category being enabled by a bit.
	155	*
	156	* drm.debug=0x1 will enable CORE messages
	157	* drm.debug=0x2 will enable DRIVER messages
	158	* drm.debug=0x3 will enable CORE and DRIVER messages
	159	* ...
	160	* drm.debug=0x3f will enable all messages
	161	*
	162	* An interesting feature is that it's possible to enable verbose logging at
	163	* run-time by echoing the debug value in its sysfs node:
	164	* # echo 0xf > /sys/module/drm/parameters/debug
	165	*/
	166	#define DRM_UT_NONE 0x00
	167	#define DRM_UT_CORE 0x01
	168	#define DRM_UT_DRIVER 0x02
	169	#define DRM_UT_KMS 0x04
	170	#define DRM_UT_PRIME 0x08
	171	#define DRM_UT_ATOMIC 0x10
	172	#define DRM_UT_VBL 0x20
	173	#define DRM_UT_STATE 0x40
	174
	175	__printf(6, 7)
	176	void drm_dev_printk(const struct device dev, const char level,
	177	unsigned int category, const char *function_name,
	178	const char prefix, const char format, ...);
	179	__printf(3, 4)
	180	void drm_printk(const char *level, unsigned int category,
	181	const char *format, ...);
091756bb HM	182
091756bb HM	183	/* Macros to make printk easier */
02c9656b HM	184
	185	#define _DRM_PRINTK(once, level, fmt, ...) \
	186	do { \
	187	printk##once(KERN_##level "[" DRM_NAME "] " fmt, \
	188	##__VA_ARGS__); \
	189	} while (0)
	190
	191	#define DRM_INFO(fmt, ...) \
	192	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
	193	#define DRM_NOTE(fmt, ...) \
	194	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
	195	#define DRM_WARN(fmt, ...) \
	196	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
	197
	198	#define DRM_INFO_ONCE(fmt, ...) \
	199	_DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
	200	#define DRM_NOTE_ONCE(fmt, ...) \
	201	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
	202	#define DRM_WARN_ONCE(fmt, ...) \
	203	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
	204
	205	/**
	206	* Error output.
	207	*
091756bb HM	208	* @dev: device pointer
091756bb HM	209	* @fmt: printf() like format string.
02c9656b HM	210	*/
	211	#define DRM_DEV_ERROR(dev, fmt, ...) \
	212	drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " ERROR",\
	213	fmt, ##__VA_ARGS__)
	214	#define DRM_ERROR(fmt, ...) \
	215	drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__)
	216
	217	/**
	218	* Rate limited error output. Like DRM_ERROR() but won't flood the log.
	219	*
091756bb HM	220	* @dev: device pointer
091756bb HM	221	* @fmt: printf() like format string.
02c9656b HM	222	*/
	223	#define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \
	224	({ \
	225	static DEFINE_RATELIMIT_STATE(_rs, \
	226	DEFAULT_RATELIMIT_INTERVAL, \
	227	DEFAULT_RATELIMIT_BURST); \
	228	\
	229	if (__ratelimit(&_rs)) \
	230	DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \
	231	})
	232	#define DRM_ERROR_RATELIMITED(fmt, ...) \
	233	DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
	234
	235	#define DRM_DEV_INFO(dev, fmt, ...) \
	236	drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \
	237	##__VA_ARGS__)
	238
	239	#define DRM_DEV_INFO_ONCE(dev, fmt, ...) \
	240	({ \
	241	static bool __print_once __read_mostly; \
	242	if (!__print_once) { \
	243	__print_once = true; \
	244	DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \
	245	} \
	246	})
	247
	248	/**
	249	* Debug output.
	250	*
091756bb HM	251	* @dev: device pointer
091756bb HM	252	* @fmt: printf() like format string.
02c9656b HM	253	*/
	254	#define DRM_DEV_DEBUG(dev, fmt, args...) \
	255	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \
	256	##args)
	257	#define DRM_DEBUG(fmt, ...) \
	258	drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__)
	259
	260	#define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \
	261	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \
	262	fmt, ##args)
	263	#define DRM_DEBUG_DRIVER(fmt, ...) \
	264	drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
	265
	266	#define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \
	267	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \
	268	##args)
	269	#define DRM_DEBUG_KMS(fmt, ...) \
	270	drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__)
	271
	272	#define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \
	273	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \
	274	fmt, ##args)
	275	#define DRM_DEBUG_PRIME(fmt, ...) \
	276	drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
	277
	278	#define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \
	279	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \
	280	fmt, ##args)
	281	#define DRM_DEBUG_ATOMIC(fmt, ...) \
	282	drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
	283
	284	#define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \
	285	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \
	286	##args)
	287	#define DRM_DEBUG_VBL(fmt, ...) \
	288	drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__)
	289
	290	#define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \
	291	({ \
	292	static DEFINE_RATELIMIT_STATE(_rs, \
	293	DEFAULT_RATELIMIT_INTERVAL, \
	294	DEFAULT_RATELIMIT_BURST); \
	295	if (__ratelimit(&_rs)) \
	296	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \
	297	__func__, "", fmt, ##args); \
	298	})
	299
	300	/**
	301	* Rate limited debug output. Like DRM_DEBUG() but won't flood the log.
	302	*
091756bb HM	303	* @dev: device pointer
091756bb HM	304	* @fmt: printf() like format string.
02c9656b HM	305	*/
	306	#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \
	307	DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)
	308	#define DRM_DEBUG_RATELIMITED(fmt, args...) \
	309	DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)
	310	#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \
	311	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)
	312	#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \
	313	DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)
	314	#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \
	315	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)
	316	#define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \
	317	DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)
	318	#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \
	319	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)
	320	#define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \
	321	DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args)
	322
d8187177	323	#endif /* DRM_PRINT_H_ */