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 | |
29 | #include <linux/compiler.h> |
30 | #include <linux/printk.h> |
31 | #include <linux/seq_file.h> |
32 | #include <linux/device.h> |
33 | #include <linux/debugfs.h> |
34 | #include <linux/dynamic_debug.h> |
35 | |
36 | #include <drm/drm.h> |
37 | |
38 | struct drm_device; |
39 | |
40 | /* Do *not* use outside of drm_print.[ch]! */ |
41 | extern unsigned long __drm_debug; |
42 | |
43 | /** |
44 | * DOC: print |
45 | * |
46 | * A simple wrapper for dev_printk(), seq_printf(), etc. Allows same |
47 | * debug code to be used for both debugfs and printk logging. |
48 | * |
49 | * For example:: |
50 | * |
51 | * void log_some_info(struct drm_printer *p) |
52 | * { |
53 | * drm_printf(p, "foo=%d\n", foo); |
54 | * drm_printf(p, "bar=%d\n", bar); |
55 | * } |
56 | * |
57 | * #ifdef CONFIG_DEBUG_FS |
58 | * void debugfs_show(struct seq_file *f) |
59 | * { |
60 | * struct drm_printer p = drm_seq_file_printer(f); |
61 | * log_some_info(&p); |
62 | * } |
63 | * #endif |
64 | * |
65 | * void some_other_function(...) |
66 | * { |
67 | * struct drm_printer p = drm_info_printer(drm->dev); |
68 | * log_some_info(&p); |
69 | * } |
70 | */ |
71 | |
72 | /** |
73 | * enum drm_debug_category - The DRM debug categories |
74 | * |
75 | * Each of the DRM debug logging macros use a specific category, and the logging |
76 | * is filtered by the drm.debug module parameter. This enum specifies the values |
77 | * for the interface. |
78 | * |
79 | * Each DRM_DEBUG_<CATEGORY> macro logs to DRM_UT_<CATEGORY> category, except |
80 | * DRM_DEBUG() logs to DRM_UT_CORE. |
81 | * |
82 | * Enabling verbose debug messages is done through the drm.debug parameter, each |
83 | * category being enabled by a bit: |
84 | * |
85 | * - drm.debug=0x1 will enable CORE messages |
86 | * - drm.debug=0x2 will enable DRIVER messages |
87 | * - drm.debug=0x3 will enable CORE and DRIVER messages |
88 | * - ... |
89 | * - drm.debug=0x1ff will enable all messages |
90 | * |
91 | * An interesting feature is that it's possible to enable verbose logging at |
92 | * run-time by echoing the debug value in its sysfs node:: |
93 | * |
94 | * # echo 0xf > /sys/module/drm/parameters/debug |
95 | * |
96 | */ |
97 | enum drm_debug_category { |
98 | /* These names must match those in DYNAMIC_DEBUG_CLASSBITS */ |
99 | /** |
100 | * @DRM_UT_CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, |
101 | * drm_memory.c, ... |
102 | */ |
103 | DRM_UT_CORE, |
104 | /** |
105 | * @DRM_UT_DRIVER: Used in the vendor specific part of the driver: i915, |
106 | * radeon, ... macro. |
107 | */ |
108 | DRM_UT_DRIVER, |
109 | /** |
110 | * @DRM_UT_KMS: Used in the modesetting code. |
111 | */ |
112 | DRM_UT_KMS, |
113 | /** |
114 | * @DRM_UT_PRIME: Used in the prime code. |
115 | */ |
116 | DRM_UT_PRIME, |
117 | /** |
118 | * @DRM_UT_ATOMIC: Used in the atomic code. |
119 | */ |
120 | DRM_UT_ATOMIC, |
121 | /** |
122 | * @DRM_UT_VBL: Used for verbose debug message in the vblank code. |
123 | */ |
124 | DRM_UT_VBL, |
125 | /** |
126 | * @DRM_UT_STATE: Used for verbose atomic state debugging. |
127 | */ |
128 | DRM_UT_STATE, |
129 | /** |
130 | * @DRM_UT_LEASE: Used in the lease code. |
131 | */ |
132 | DRM_UT_LEASE, |
133 | /** |
134 | * @DRM_UT_DP: Used in the DP code. |
135 | */ |
136 | DRM_UT_DP, |
137 | /** |
138 | * @DRM_UT_DRMRES: Used in the drm managed resources code. |
139 | */ |
140 | DRM_UT_DRMRES |
141 | }; |
142 | |
143 | static inline bool drm_debug_enabled_raw(enum drm_debug_category category) |
144 | { |
145 | return unlikely(__drm_debug & BIT(category)); |
146 | } |
147 | |
148 | #define drm_debug_enabled_instrumented(category) \ |
149 | ({ \ |
150 | pr_debug("todo: is this frequent enough to optimize ?\n"); \ |
151 | drm_debug_enabled_raw(category); \ |
152 | }) |
153 | |
154 | #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) |
155 | /* |
156 | * the drm.debug API uses dyndbg, so each drm_*dbg macro/callsite gets |
157 | * a descriptor, and only enabled callsites are reachable. They use |
158 | * the private macro to avoid re-testing the enable-bit. |
159 | */ |
160 | #define __drm_debug_enabled(category) true |
161 | #define drm_debug_enabled(category) drm_debug_enabled_instrumented(category) |
162 | #else |
163 | #define __drm_debug_enabled(category) drm_debug_enabled_raw(category) |
164 | #define drm_debug_enabled(category) drm_debug_enabled_raw(category) |
165 | #endif |
166 | |
167 | /** |
168 | * struct drm_printer - drm output "stream" |
169 | * |
170 | * Do not use struct members directly. Use drm_printer_seq_file(), |
171 | * drm_printer_info(), etc to initialize. And drm_printf() for output. |
172 | */ |
173 | struct drm_printer { |
174 | /* private: */ |
175 | void (*printfn)(struct drm_printer *p, struct va_format *vaf); |
176 | void (*puts)(struct drm_printer *p, const char *str); |
177 | void *arg; |
178 | const char *prefix; |
179 | enum drm_debug_category category; |
180 | }; |
181 | |
182 | void __drm_printfn_coredump(struct drm_printer *p, struct va_format *vaf); |
183 | void __drm_puts_coredump(struct drm_printer *p, const char *str); |
184 | void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf); |
185 | void __drm_puts_seq_file(struct drm_printer *p, const char *str); |
186 | void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf); |
187 | void __drm_printfn_dbg(struct drm_printer *p, struct va_format *vaf); |
188 | void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf); |
189 | |
190 | __printf(2, 3) |
191 | void drm_printf(struct drm_printer *p, const char *f, ...); |
192 | void drm_puts(struct drm_printer *p, const char *str); |
193 | void drm_print_regset32(struct drm_printer *p, struct debugfs_regset32 *regset); |
194 | void drm_print_bits(struct drm_printer *p, unsigned long value, |
195 | const char * const bits[], unsigned int nbits); |
196 | |
197 | __printf(2, 0) |
198 | /** |
199 | * drm_vprintf - print to a &drm_printer stream |
200 | * @p: the &drm_printer |
201 | * @fmt: format string |
202 | * @va: the va_list |
203 | */ |
204 | static inline void |
205 | drm_vprintf(struct drm_printer *p, const char *fmt, va_list *va) |
206 | { |
207 | struct va_format vaf = { .fmt = fmt, .va = va }; |
208 | |
209 | p->printfn(p, &vaf); |
210 | } |
211 | |
212 | /** |
213 | * drm_printf_indent - Print to a &drm_printer stream with indentation |
214 | * @printer: DRM printer |
215 | * @indent: Tab indentation level (max 5) |
216 | * @fmt: Format string |
217 | */ |
218 | #define drm_printf_indent(printer, indent, fmt, ...) \ |
219 | drm_printf((printer), "%.*s" fmt, (indent), "\t\t\t\t\tX", ##__VA_ARGS__) |
220 | |
221 | /** |
222 | * struct drm_print_iterator - local struct used with drm_printer_coredump |
223 | * @data: Pointer to the devcoredump output buffer |
224 | * @start: The offset within the buffer to start writing |
225 | * @remain: The number of bytes to write for this iteration |
226 | */ |
227 | struct drm_print_iterator { |
228 | void *data; |
229 | ssize_t start; |
230 | ssize_t remain; |
231 | /* private: */ |
232 | ssize_t offset; |
233 | }; |
234 | |
235 | /** |
236 | * drm_coredump_printer - construct a &drm_printer that can output to a buffer |
237 | * from the read function for devcoredump |
238 | * @iter: A pointer to a struct drm_print_iterator for the read instance |
239 | * |
240 | * This wrapper extends drm_printf() to work with a dev_coredumpm() callback |
241 | * function. The passed in drm_print_iterator struct contains the buffer |
242 | * pointer, size and offset as passed in from devcoredump. |
243 | * |
244 | * For example:: |
245 | * |
246 | * void coredump_read(char *buffer, loff_t offset, size_t count, |
247 | * void *data, size_t datalen) |
248 | * { |
249 | * struct drm_print_iterator iter; |
250 | * struct drm_printer p; |
251 | * |
252 | * iter.data = buffer; |
253 | * iter.start = offset; |
254 | * iter.remain = count; |
255 | * |
256 | * p = drm_coredump_printer(&iter); |
257 | * |
258 | * drm_printf(p, "foo=%d\n", foo); |
259 | * } |
260 | * |
261 | * void makecoredump(...) |
262 | * { |
263 | * ... |
264 | * dev_coredumpm(dev, THIS_MODULE, data, 0, GFP_KERNEL, |
265 | * coredump_read, ...) |
266 | * } |
267 | * |
268 | * RETURNS: |
269 | * The &drm_printer object |
270 | */ |
271 | static inline struct drm_printer |
272 | drm_coredump_printer(struct drm_print_iterator *iter) |
273 | { |
274 | struct drm_printer p = { |
275 | .printfn = __drm_printfn_coredump, |
276 | .puts = __drm_puts_coredump, |
277 | .arg = iter, |
278 | }; |
279 | |
280 | /* Set the internal offset of the iterator to zero */ |
281 | iter->offset = 0; |
282 | |
283 | return p; |
284 | } |
285 | |
286 | /** |
287 | * drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file |
288 | * @f: the &struct seq_file to output to |
289 | * |
290 | * RETURNS: |
291 | * The &drm_printer object |
292 | */ |
293 | static inline struct drm_printer drm_seq_file_printer(struct seq_file *f) |
294 | { |
295 | struct drm_printer p = { |
296 | .printfn = __drm_printfn_seq_file, |
297 | .puts = __drm_puts_seq_file, |
298 | .arg = f, |
299 | }; |
300 | return p; |
301 | } |
302 | |
303 | /** |
304 | * drm_info_printer - construct a &drm_printer that outputs to dev_printk() |
305 | * @dev: the &struct device pointer |
306 | * |
307 | * RETURNS: |
308 | * The &drm_printer object |
309 | */ |
310 | static inline struct drm_printer drm_info_printer(struct device *dev) |
311 | { |
312 | struct drm_printer p = { |
313 | .printfn = __drm_printfn_info, |
314 | .arg = dev, |
315 | }; |
316 | return p; |
317 | } |
318 | |
319 | /** |
320 | * drm_dbg_printer - construct a &drm_printer for drm device specific output |
321 | * @drm: the &struct drm_device pointer, or NULL |
322 | * @category: the debug category to use |
323 | * @prefix: debug output prefix, or NULL for no prefix |
324 | * |
325 | * RETURNS: |
326 | * The &drm_printer object |
327 | */ |
328 | static inline struct drm_printer drm_dbg_printer(struct drm_device *drm, |
329 | enum drm_debug_category category, |
330 | const char *prefix) |
331 | { |
332 | struct drm_printer p = { |
333 | .printfn = __drm_printfn_dbg, |
334 | .arg = drm, |
335 | .prefix = prefix, |
336 | .category = category, |
337 | }; |
338 | return p; |
339 | } |
340 | |
341 | /** |
342 | * drm_err_printer - construct a &drm_printer that outputs to drm_err() |
343 | * @drm: the &struct drm_device pointer |
344 | * @prefix: debug output prefix, or NULL for no prefix |
345 | * |
346 | * RETURNS: |
347 | * The &drm_printer object |
348 | */ |
349 | static inline struct drm_printer drm_err_printer(struct drm_device *drm, |
350 | const char *prefix) |
351 | { |
352 | struct drm_printer p = { |
353 | .printfn = __drm_printfn_err, |
354 | .arg = drm, |
355 | .prefix = prefix |
356 | }; |
357 | return p; |
358 | } |
359 | |
360 | /* |
361 | * struct device based logging |
362 | * |
363 | * Prefer drm_device based logging over device or printk based logging. |
364 | */ |
365 | |
366 | __printf(3, 4) |
367 | void drm_dev_printk(const struct device *dev, const char *level, |
368 | const char *format, ...); |
369 | struct _ddebug; |
370 | __printf(4, 5) |
371 | void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev, |
372 | enum drm_debug_category category, const char *format, ...); |
373 | |
374 | /** |
375 | * DRM_DEV_ERROR() - Error output. |
376 | * |
377 | * NOTE: this is deprecated in favor of drm_err() or dev_err(). |
378 | * |
379 | * @dev: device pointer |
380 | * @fmt: printf() like format string. |
381 | */ |
382 | #define DRM_DEV_ERROR(dev, fmt, ...) \ |
383 | drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__) |
384 | |
385 | /** |
386 | * DRM_DEV_ERROR_RATELIMITED() - Rate limited error output. |
387 | * |
388 | * NOTE: this is deprecated in favor of drm_err_ratelimited() or |
389 | * dev_err_ratelimited(). |
390 | * |
391 | * @dev: device pointer |
392 | * @fmt: printf() like format string. |
393 | * |
394 | * Like DRM_ERROR() but won't flood the log. |
395 | */ |
396 | #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \ |
397 | ({ \ |
398 | static DEFINE_RATELIMIT_STATE(_rs, \ |
399 | DEFAULT_RATELIMIT_INTERVAL, \ |
400 | DEFAULT_RATELIMIT_BURST); \ |
401 | \ |
402 | if (__ratelimit(&_rs)) \ |
403 | DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \ |
404 | }) |
405 | |
406 | /* NOTE: this is deprecated in favor of drm_info() or dev_info(). */ |
407 | #define DRM_DEV_INFO(dev, fmt, ...) \ |
408 | drm_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__) |
409 | |
410 | /* NOTE: this is deprecated in favor of drm_info_once() or dev_info_once(). */ |
411 | #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \ |
412 | ({ \ |
413 | static bool __print_once __read_mostly; \ |
414 | if (!__print_once) { \ |
415 | __print_once = true; \ |
416 | DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \ |
417 | } \ |
418 | }) |
419 | |
420 | #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) |
421 | #define drm_dev_dbg(dev, cat, fmt, ...) \ |
422 | __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__) |
423 | #else |
424 | #define drm_dev_dbg(dev, cat, fmt, ...) \ |
425 | _dynamic_func_call_cls(cat, fmt, __drm_dev_dbg, \ |
426 | dev, cat, fmt, ##__VA_ARGS__) |
427 | #endif |
428 | |
429 | /** |
430 | * DRM_DEV_DEBUG() - Debug output for generic drm code |
431 | * |
432 | * NOTE: this is deprecated in favor of drm_dbg_core(). |
433 | * |
434 | * @dev: device pointer |
435 | * @fmt: printf() like format string. |
436 | */ |
437 | #define DRM_DEV_DEBUG(dev, fmt, ...) \ |
438 | drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##__VA_ARGS__) |
439 | /** |
440 | * DRM_DEV_DEBUG_DRIVER() - Debug output for vendor specific part of the driver |
441 | * |
442 | * NOTE: this is deprecated in favor of drm_dbg() or dev_dbg(). |
443 | * |
444 | * @dev: device pointer |
445 | * @fmt: printf() like format string. |
446 | */ |
447 | #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) \ |
448 | drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) |
449 | /** |
450 | * DRM_DEV_DEBUG_KMS() - Debug output for modesetting code |
451 | * |
452 | * NOTE: this is deprecated in favor of drm_dbg_kms(). |
453 | * |
454 | * @dev: device pointer |
455 | * @fmt: printf() like format string. |
456 | */ |
457 | #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) \ |
458 | drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__) |
459 | |
460 | /* |
461 | * struct drm_device based logging |
462 | * |
463 | * Prefer drm_device based logging over device or prink based logging. |
464 | */ |
465 | |
466 | /* Helper for struct drm_device based logging. */ |
467 | #define __drm_printk(drm, level, type, fmt, ...) \ |
468 | dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) |
469 | |
470 | |
471 | #define drm_info(drm, fmt, ...) \ |
472 | __drm_printk((drm), info,, fmt, ##__VA_ARGS__) |
473 | |
474 | #define drm_notice(drm, fmt, ...) \ |
475 | __drm_printk((drm), notice,, fmt, ##__VA_ARGS__) |
476 | |
477 | #define drm_warn(drm, fmt, ...) \ |
478 | __drm_printk((drm), warn,, fmt, ##__VA_ARGS__) |
479 | |
480 | #define drm_err(drm, fmt, ...) \ |
481 | __drm_printk((drm), err,, "*ERROR* " fmt, ##__VA_ARGS__) |
482 | |
483 | |
484 | #define drm_info_once(drm, fmt, ...) \ |
485 | __drm_printk((drm), info, _once, fmt, ##__VA_ARGS__) |
486 | |
487 | #define drm_notice_once(drm, fmt, ...) \ |
488 | __drm_printk((drm), notice, _once, fmt, ##__VA_ARGS__) |
489 | |
490 | #define drm_warn_once(drm, fmt, ...) \ |
491 | __drm_printk((drm), warn, _once, fmt, ##__VA_ARGS__) |
492 | |
493 | #define drm_err_once(drm, fmt, ...) \ |
494 | __drm_printk((drm), err, _once, "*ERROR* " fmt, ##__VA_ARGS__) |
495 | |
496 | |
497 | #define drm_err_ratelimited(drm, fmt, ...) \ |
498 | __drm_printk((drm), err, _ratelimited, "*ERROR* " fmt, ##__VA_ARGS__) |
499 | |
500 | |
501 | #define drm_dbg_core(drm, fmt, ...) \ |
502 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__) |
503 | #define drm_dbg_driver(drm, fmt, ...) \ |
504 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) |
505 | #define drm_dbg_kms(drm, fmt, ...) \ |
506 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__) |
507 | #define drm_dbg_prime(drm, fmt, ...) \ |
508 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__) |
509 | #define drm_dbg_atomic(drm, fmt, ...) \ |
510 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) |
511 | #define drm_dbg_vbl(drm, fmt, ...) \ |
512 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__) |
513 | #define drm_dbg_state(drm, fmt, ...) \ |
514 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__) |
515 | #define drm_dbg_lease(drm, fmt, ...) \ |
516 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__) |
517 | #define drm_dbg_dp(drm, fmt, ...) \ |
518 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__) |
519 | #define drm_dbg_drmres(drm, fmt, ...) \ |
520 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) |
521 | |
522 | #define drm_dbg(drm, fmt, ...) drm_dbg_driver(drm, fmt, ##__VA_ARGS__) |
523 | |
524 | /* |
525 | * printk based logging |
526 | * |
527 | * Prefer drm_device based logging over device or prink based logging. |
528 | */ |
529 | |
530 | __printf(3, 4) |
531 | void ___drm_dbg(struct _ddebug *desc, enum drm_debug_category category, const char *format, ...); |
532 | __printf(1, 2) |
533 | void __drm_err(const char *format, ...); |
534 | |
535 | #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) |
536 | #define __drm_dbg(cat, fmt, ...) ___drm_dbg(NULL, cat, fmt, ##__VA_ARGS__) |
537 | #else |
538 | #define __drm_dbg(cat, fmt, ...) \ |
539 | _dynamic_func_call_cls(cat, fmt, ___drm_dbg, \ |
540 | cat, fmt, ##__VA_ARGS__) |
541 | #endif |
542 | |
543 | /* Macros to make printk easier */ |
544 | |
545 | #define _DRM_PRINTK(once, level, fmt, ...) \ |
546 | printk##once(KERN_##level "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
547 | |
548 | /* NOTE: this is deprecated in favor of pr_info(). */ |
549 | #define DRM_INFO(fmt, ...) \ |
550 | _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__) |
551 | /* NOTE: this is deprecated in favor of pr_notice(). */ |
552 | #define DRM_NOTE(fmt, ...) \ |
553 | _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__) |
554 | /* NOTE: this is deprecated in favor of pr_warn(). */ |
555 | #define DRM_WARN(fmt, ...) \ |
556 | _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) |
557 | |
558 | /* NOTE: this is deprecated in favor of pr_info_once(). */ |
559 | #define DRM_INFO_ONCE(fmt, ...) \ |
560 | _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__) |
561 | /* NOTE: this is deprecated in favor of pr_notice_once(). */ |
562 | #define DRM_NOTE_ONCE(fmt, ...) \ |
563 | _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__) |
564 | /* NOTE: this is deprecated in favor of pr_warn_once(). */ |
565 | #define DRM_WARN_ONCE(fmt, ...) \ |
566 | _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) |
567 | |
568 | /* NOTE: this is deprecated in favor of pr_err(). */ |
569 | #define DRM_ERROR(fmt, ...) \ |
570 | __drm_err(fmt, ##__VA_ARGS__) |
571 | |
572 | /* NOTE: this is deprecated in favor of pr_err_ratelimited(). */ |
573 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ |
574 | DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__) |
575 | |
576 | /* NOTE: this is deprecated in favor of drm_dbg_core(NULL, ...). */ |
577 | #define DRM_DEBUG(fmt, ...) \ |
578 | __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARGS__) |
579 | |
580 | /* NOTE: this is deprecated in favor of drm_dbg(NULL, ...). */ |
581 | #define DRM_DEBUG_DRIVER(fmt, ...) \ |
582 | __drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_ARGS__) |
583 | |
584 | /* NOTE: this is deprecated in favor of drm_dbg_kms(NULL, ...). */ |
585 | #define DRM_DEBUG_KMS(fmt, ...) \ |
586 | __drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS__) |
587 | |
588 | /* NOTE: this is deprecated in favor of drm_dbg_prime(NULL, ...). */ |
589 | #define DRM_DEBUG_PRIME(fmt, ...) \ |
590 | __drm_dbg(DRM_UT_PRIME, fmt, ##__VA_ARGS__) |
591 | |
592 | /* NOTE: this is deprecated in favor of drm_dbg_atomic(NULL, ...). */ |
593 | #define DRM_DEBUG_ATOMIC(fmt, ...) \ |
594 | __drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) |
595 | |
596 | /* NOTE: this is deprecated in favor of drm_dbg_vbl(NULL, ...). */ |
597 | #define DRM_DEBUG_VBL(fmt, ...) \ |
598 | __drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS__) |
599 | |
600 | /* NOTE: this is deprecated in favor of drm_dbg_lease(NULL, ...). */ |
601 | #define DRM_DEBUG_LEASE(fmt, ...) \ |
602 | __drm_dbg(DRM_UT_LEASE, fmt, ##__VA_ARGS__) |
603 | |
604 | /* NOTE: this is deprecated in favor of drm_dbg_dp(NULL, ...). */ |
605 | #define DRM_DEBUG_DP(fmt, ...) \ |
606 | __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS__) |
607 | |
608 | #define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...) \ |
609 | ({ \ |
610 | static DEFINE_RATELIMIT_STATE(rs_, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);\ |
611 | const struct drm_device *drm_ = (drm); \ |
612 | \ |
613 | if (drm_debug_enabled(DRM_UT_ ## category) && __ratelimit(&rs_)) \ |
614 | drm_dev_printk(drm_ ? drm_->dev : NULL, KERN_DEBUG, fmt, ## __VA_ARGS__); \ |
615 | }) |
616 | |
617 | #define drm_dbg_ratelimited(drm, fmt, ...) \ |
618 | __DRM_DEFINE_DBG_RATELIMITED(DRIVER, drm, fmt, ## __VA_ARGS__) |
619 | |
620 | #define drm_dbg_kms_ratelimited(drm, fmt, ...) \ |
621 | __DRM_DEFINE_DBG_RATELIMITED(KMS, drm, fmt, ## __VA_ARGS__) |
622 | |
623 | /* |
624 | * struct drm_device based WARNs |
625 | * |
626 | * drm_WARN*() acts like WARN*(), but with the key difference of |
627 | * using device specific information so that we know from which device |
628 | * warning is originating from. |
629 | * |
630 | * Prefer drm_device based drm_WARN* over regular WARN* |
631 | */ |
632 | |
633 | /* Helper for struct drm_device based WARNs */ |
634 | #define drm_WARN(drm, condition, format, arg...) \ |
635 | WARN(condition, "%s %s: " format, \ |
636 | dev_driver_string((drm)->dev), \ |
637 | dev_name((drm)->dev), ## arg) |
638 | |
639 | #define drm_WARN_ONCE(drm, condition, format, arg...) \ |
640 | WARN_ONCE(condition, "%s %s: " format, \ |
641 | dev_driver_string((drm)->dev), \ |
642 | dev_name((drm)->dev), ## arg) |
643 | |
644 | #define drm_WARN_ON(drm, x) \ |
645 | drm_WARN((drm), (x), "%s", \ |
646 | "drm_WARN_ON(" __stringify(x) ")") |
647 | |
648 | #define drm_WARN_ON_ONCE(drm, x) \ |
649 | drm_WARN_ONCE((drm), (x), "%s", \ |
650 | "drm_WARN_ON_ONCE(" __stringify(x) ")") |
651 | |
652 | #endif /* DRM_PRINT_H_ */ |
653 | |