[mirror_ubuntu-hirsute-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_printf_indent - Print to a &drm_printer stream with indentation
 * @printer: DRM printer
 * @indent: Tab indentation level (max 5)
 * @fmt: Format string
 */
#define drm_printf_indent(printer, indent, fmt, ...) \
	drm_printf((printer), "%.*s" fmt, (indent), "\t\t\t\t\tX", ##__VA_ARGS__)

/**
 * 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
#define DRM_UT_LEASE		0x80

__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_DEBUG_LEASE(fmt, ...)					\
	drm_printk(KERN_DEBUG, DRM_UT_LEASE, 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, ...);
d8187177 RC	82
bf6234a2 NT	83	/**
	84	* drm_printf_indent - Print to a &drm_printer stream with indentation
	85	* @printer: DRM printer
	86	* @indent: Tab indentation level (max 5)
	87	* @fmt: Format string
	88	*/
	89	#define drm_printf_indent(printer, indent, fmt, ...) \
	90	drm_printf((printer), "%.*s" fmt, (indent), "\t\t\t\t\tX", ##__VA_ARGS__)
d8187177 RC	91
	92	/**
	93	* drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file
ea0dd85a	94	* @f: the &struct seq_file to output to
d8187177 RC	95	*
	96	* RETURNS:
	97	* The &drm_printer object
	98	*/
	99	static inline struct drm_printer drm_seq_file_printer(struct seq_file *f)
	100	{
	101	struct drm_printer p = {
	102	.printfn = __drm_printfn_seq_file,
	103	.arg = f,
	104	};
	105	return p;
	106	}
	107
	108	/**
	109	* drm_info_printer - construct a &drm_printer that outputs to dev_printk()
ea0dd85a	110	* @dev: the &struct device pointer
d8187177 RC	111	*
	112	* RETURNS:
	113	* The &drm_printer object
	114	*/
	115	static inline struct drm_printer drm_info_printer(struct device *dev)
	116	{
	117	struct drm_printer p = {
	118	.printfn = __drm_printfn_info,
	119	.arg = dev,
	120	};
	121	return p;
	122	}
	123
3d387d92 DV	124	/**
	125	* drm_debug_printer - construct a &drm_printer that outputs to pr_debug()
	126	* @prefix: debug output prefix
	127	*
	128	* RETURNS:
	129	* The &drm_printer object
	130	*/
	131	static inline struct drm_printer drm_debug_printer(const char *prefix)
	132	{
	133	struct drm_printer p = {
	134	.printfn = __drm_printfn_debug,
	135	.prefix = prefix
	136	};
	137	return p;
	138	}
02c9656b HM	139
	140	/*
	141	* The following categories are defined:
	142	*
	143	* CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
	144	* This is the category used by the DRM_DEBUG() macro.
	145	*
	146	* DRIVER: Used in the vendor specific part of the driver: i915, radeon, ...
	147	* This is the category used by the DRM_DEBUG_DRIVER() macro.
	148	*
	149	* KMS: used in the modesetting code.
	150	* This is the category used by the DRM_DEBUG_KMS() macro.
	151	*
	152	* PRIME: used in the prime code.
	153	* This is the category used by the DRM_DEBUG_PRIME() macro.
	154	*
	155	* ATOMIC: used in the atomic code.
	156	* This is the category used by the DRM_DEBUG_ATOMIC() macro.
	157	*
	158	* VBL: used for verbose debug message in the vblank code
	159	* This is the category used by the DRM_DEBUG_VBL() macro.
	160	*
	161	* Enabling verbose debug messages is done through the drm.debug parameter,
	162	* each category being enabled by a bit.
	163	*
	164	* drm.debug=0x1 will enable CORE messages
	165	* drm.debug=0x2 will enable DRIVER messages
	166	* drm.debug=0x3 will enable CORE and DRIVER messages
	167	* ...
	168	* drm.debug=0x3f will enable all messages
	169	*
	170	* An interesting feature is that it's possible to enable verbose logging at
	171	* run-time by echoing the debug value in its sysfs node:
	172	* # echo 0xf > /sys/module/drm/parameters/debug
	173	*/
	174	#define DRM_UT_NONE 0x00
	175	#define DRM_UT_CORE 0x01
	176	#define DRM_UT_DRIVER 0x02
	177	#define DRM_UT_KMS 0x04
	178	#define DRM_UT_PRIME 0x08
	179	#define DRM_UT_ATOMIC 0x10
	180	#define DRM_UT_VBL 0x20
	181	#define DRM_UT_STATE 0x40
70c5f936	182	#define DRM_UT_LEASE 0x80
02c9656b HM	183
	184	__printf(6, 7)
	185	void drm_dev_printk(const struct device dev, const char level,
	186	unsigned int category, const char *function_name,
	187	const char prefix, const char format, ...);
	188	__printf(3, 4)
	189	void drm_printk(const char *level, unsigned int category,
	190	const char *format, ...);
091756bb HM	191
091756bb HM	192	/* Macros to make printk easier */
02c9656b HM	193
	194	#define _DRM_PRINTK(once, level, fmt, ...) \
	195	do { \
	196	printk##once(KERN_##level "[" DRM_NAME "] " fmt, \
	197	##__VA_ARGS__); \
	198	} while (0)
	199
	200	#define DRM_INFO(fmt, ...) \
	201	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
	202	#define DRM_NOTE(fmt, ...) \
	203	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
	204	#define DRM_WARN(fmt, ...) \
	205	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
	206
	207	#define DRM_INFO_ONCE(fmt, ...) \
	208	_DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
	209	#define DRM_NOTE_ONCE(fmt, ...) \
	210	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
	211	#define DRM_WARN_ONCE(fmt, ...) \
	212	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
	213
	214	/**
	215	* Error output.
	216	*
091756bb HM	217	* @dev: device pointer
091756bb HM	218	* @fmt: printf() like format string.
02c9656b HM	219	*/
	220	#define DRM_DEV_ERROR(dev, fmt, ...) \
	221	drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " ERROR",\
	222	fmt, ##__VA_ARGS__)
	223	#define DRM_ERROR(fmt, ...) \
	224	drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__)
	225
	226	/**
	227	* Rate limited error output. Like DRM_ERROR() but won't flood the log.
	228	*
091756bb HM	229	* @dev: device pointer
091756bb HM	230	* @fmt: printf() like format string.
02c9656b HM	231	*/
	232	#define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \
	233	({ \
	234	static DEFINE_RATELIMIT_STATE(_rs, \
	235	DEFAULT_RATELIMIT_INTERVAL, \
	236	DEFAULT_RATELIMIT_BURST); \
	237	\
	238	if (__ratelimit(&_rs)) \
	239	DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \
	240	})
	241	#define DRM_ERROR_RATELIMITED(fmt, ...) \
	242	DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
	243
	244	#define DRM_DEV_INFO(dev, fmt, ...) \
	245	drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \
	246	##__VA_ARGS__)
	247
	248	#define DRM_DEV_INFO_ONCE(dev, fmt, ...) \
	249	({ \
	250	static bool __print_once __read_mostly; \
	251	if (!__print_once) { \
	252	__print_once = true; \
	253	DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \
	254	} \
	255	})
	256
	257	/**
	258	* Debug output.
	259	*
091756bb HM	260	* @dev: device pointer
091756bb HM	261	* @fmt: printf() like format string.
02c9656b HM	262	*/
	263	#define DRM_DEV_DEBUG(dev, fmt, args...) \
	264	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \
	265	##args)
	266	#define DRM_DEBUG(fmt, ...) \
	267	drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__)
	268
	269	#define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \
	270	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \
	271	fmt, ##args)
	272	#define DRM_DEBUG_DRIVER(fmt, ...) \
	273	drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
	274
	275	#define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \
	276	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \
	277	##args)
	278	#define DRM_DEBUG_KMS(fmt, ...) \
	279	drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__)
	280
	281	#define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \
	282	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \
	283	fmt, ##args)
	284	#define DRM_DEBUG_PRIME(fmt, ...) \
	285	drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
	286
	287	#define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \
	288	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \
	289	fmt, ##args)
	290	#define DRM_DEBUG_ATOMIC(fmt, ...) \
	291	drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
	292
	293	#define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \
	294	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \
	295	##args)
	296	#define DRM_DEBUG_VBL(fmt, ...) \
	297	drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__)
	298
70c5f936 DV	299	#define DRM_DEBUG_LEASE(fmt, ...) \
	300	drm_printk(KERN_DEBUG, DRM_UT_LEASE, fmt, ##__VA_ARGS__)
	301
02c9656b HM	302	#define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \
	303	({ \
	304	static DEFINE_RATELIMIT_STATE(_rs, \
	305	DEFAULT_RATELIMIT_INTERVAL, \
	306	DEFAULT_RATELIMIT_BURST); \
	307	if (__ratelimit(&_rs)) \
	308	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \
	309	__func__, "", fmt, ##args); \
	310	})
	311
	312	/**
	313	* Rate limited debug output. Like DRM_DEBUG() but won't flood the log.
	314	*
091756bb HM	315	* @dev: device pointer
091756bb HM	316	* @fmt: printf() like format string.
02c9656b HM	317	*/
	318	#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \
	319	DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)
	320	#define DRM_DEBUG_RATELIMITED(fmt, args...) \
	321	DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)
	322	#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \
	323	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)
	324	#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \
	325	DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)
	326	#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \
	327	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)
	328	#define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \
	329	DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)
	330	#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \
	331	_DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)
	332	#define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \
	333	DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args)
	334
d8187177	335	#endif /* DRM_PRINT_H_ */