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