1 /* 1 /*
2 * Copyright (C) 2016 Red Hat 2 * Copyright (C) 2016 Red Hat
3 * 3 *
4 * Permission is hereby granted, free of charg 4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated docume 5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction 6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, pub 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to 8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to 9 * Software is furnished to do so, subject to the following conditions:
10 * 10 *
11 * The above copyright notice and this permiss 11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the S 12 * all copies or substantial portions of the Software.
13 * 13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT W 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE W 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINF 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIA 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CO 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE. 20 * OTHER DEALINGS IN THE SOFTWARE.
21 * 21 *
22 * Authors: 22 * Authors:
23 * Rob Clark <robdclark@gmail.com> 23 * Rob Clark <robdclark@gmail.com>
24 */ 24 */
25 25
26 #ifndef DRM_PRINT_H_ 26 #ifndef DRM_PRINT_H_
27 #define DRM_PRINT_H_ 27 #define DRM_PRINT_H_
28 28
29 #include <linux/compiler.h> 29 #include <linux/compiler.h>
30 #include <linux/printk.h> 30 #include <linux/printk.h>
>> 31 #include <linux/seq_file.h>
31 #include <linux/device.h> 32 #include <linux/device.h>
>> 33 #include <linux/debugfs.h>
32 #include <linux/dynamic_debug.h> 34 #include <linux/dynamic_debug.h>
33 35
34 #include <drm/drm.h> 36 #include <drm/drm.h>
35 37
36 struct debugfs_regset32; <<
37 struct drm_device; <<
38 struct seq_file; <<
39 <<
40 /* Do *not* use outside of drm_print.[ch]! */ 38 /* Do *not* use outside of drm_print.[ch]! */
41 extern unsigned long __drm_debug; 39 extern unsigned long __drm_debug;
42 40
43 /** 41 /**
44 * DOC: print 42 * DOC: print
45 * 43 *
46 * A simple wrapper for dev_printk(), seq_prin 44 * A simple wrapper for dev_printk(), seq_printf(), etc. Allows same
47 * debug code to be used for both debugfs and 45 * debug code to be used for both debugfs and printk logging.
48 * 46 *
49 * For example:: 47 * For example::
50 * 48 *
51 * void log_some_info(struct drm_printer * 49 * void log_some_info(struct drm_printer *p)
52 * { 50 * {
53 * drm_printf(p, "foo=%d\n", foo); 51 * drm_printf(p, "foo=%d\n", foo);
54 * drm_printf(p, "bar=%d\n", bar); 52 * drm_printf(p, "bar=%d\n", bar);
55 * } 53 * }
56 * 54 *
57 * #ifdef CONFIG_DEBUG_FS 55 * #ifdef CONFIG_DEBUG_FS
58 * void debugfs_show(struct seq_file *f) 56 * void debugfs_show(struct seq_file *f)
59 * { 57 * {
60 * struct drm_printer p = drm_seq_ 58 * struct drm_printer p = drm_seq_file_printer(f);
61 * log_some_info(&p); 59 * log_some_info(&p);
62 * } 60 * }
63 * #endif 61 * #endif
64 * 62 *
65 * void some_other_function(...) 63 * void some_other_function(...)
66 * { 64 * {
67 * struct drm_printer p = drm_info 65 * struct drm_printer p = drm_info_printer(drm->dev);
68 * log_some_info(&p); 66 * log_some_info(&p);
69 * } 67 * }
70 */ 68 */
71 69
72 /** 70 /**
73 * enum drm_debug_category - The DRM debug cat <<
74 * <<
75 * Each of the DRM debug logging macros use a <<
76 * is filtered by the drm.debug module paramet <<
77 * for the interface. <<
78 * <<
79 * Each DRM_DEBUG_<CATEGORY> macro logs to DRM <<
80 * DRM_DEBUG() logs to DRM_UT_CORE. <<
81 * <<
82 * Enabling verbose debug messages is done thr <<
83 * category being enabled by a bit: <<
84 * <<
85 * - drm.debug=0x1 will enable CORE messages <<
86 * - drm.debug=0x2 will enable DRIVER message <<
87 * - drm.debug=0x3 will enable CORE and DRIVE <<
88 * - ... <<
89 * - drm.debug=0x1ff will enable all messages <<
90 * <<
91 * An interesting feature is that it's possibl <<
92 * run-time by echoing the debug value in its <<
93 * <<
94 * # echo 0xf > /sys/module/drm/parameters/d <<
95 * <<
96 */ <<
97 enum drm_debug_category { <<
98 /* These names must match those in DYN <<
99 /** <<
100 * @DRM_UT_CORE: Used in the generic d <<
101 * drm_memory.c, ... <<
102 */ <<
103 DRM_UT_CORE, <<
104 /** <<
105 * @DRM_UT_DRIVER: Used in the vendor <<
106 * radeon, ... macro. <<
107 */ <<
108 DRM_UT_DRIVER, <<
109 /** <<
110 * @DRM_UT_KMS: Used in the modesettin <<
111 */ <<
112 DRM_UT_KMS, <<
113 /** <<
114 * @DRM_UT_PRIME: Used in the prime co <<
115 */ <<
116 DRM_UT_PRIME, <<
117 /** <<
118 * @DRM_UT_ATOMIC: Used in the atomic <<
119 */ <<
120 DRM_UT_ATOMIC, <<
121 /** <<
122 * @DRM_UT_VBL: Used for verbose debug <<
123 */ <<
124 DRM_UT_VBL, <<
125 /** <<
126 * @DRM_UT_STATE: Used for verbose ato <<
127 */ <<
128 DRM_UT_STATE, <<
129 /** <<
130 * @DRM_UT_LEASE: Used in the lease co <<
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 man <<
139 */ <<
140 DRM_UT_DRMRES <<
141 }; <<
142 <<
143 static inline bool drm_debug_enabled_raw(enum <<
144 { <<
145 return unlikely(__drm_debug & BIT(cate <<
146 } <<
147 <<
148 #define drm_debug_enabled_instrumented(categor <<
149 ({ <<
150 pr_debug("todo: is this freque <<
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_ <<
157 * a descriptor, and only enabled callsites ar <<
158 * the private macro to avoid re-testing the e <<
159 */ <<
160 #define __drm_debug_enabled(category) true <<
161 #define drm_debug_enabled(category) drm_de <<
162 #else <<
163 #define __drm_debug_enabled(category) drm_de <<
164 #define drm_debug_enabled(category) drm_de <<
165 #endif <<
166 <<
167 /** <<
168 * struct drm_printer - drm output "stream" 71 * struct drm_printer - drm output "stream"
169 * 72 *
170 * Do not use struct members directly. Use dr 73 * Do not use struct members directly. Use drm_printer_seq_file(),
171 * drm_printer_info(), etc to initialize. And 74 * drm_printer_info(), etc to initialize. And drm_printf() for output.
172 */ 75 */
173 struct drm_printer { 76 struct drm_printer {
174 /* private: */ 77 /* private: */
175 void (*printfn)(struct drm_printer *p, 78 void (*printfn)(struct drm_printer *p, struct va_format *vaf);
176 void (*puts)(struct drm_printer *p, co 79 void (*puts)(struct drm_printer *p, const char *str);
177 void *arg; 80 void *arg;
178 const void *origin; <<
179 const char *prefix; 81 const char *prefix;
180 enum drm_debug_category category; <<
181 }; 82 };
182 83
183 void __drm_printfn_coredump(struct drm_printer 84 void __drm_printfn_coredump(struct drm_printer *p, struct va_format *vaf);
184 void __drm_puts_coredump(struct drm_printer *p 85 void __drm_puts_coredump(struct drm_printer *p, const char *str);
185 void __drm_printfn_seq_file(struct drm_printer 86 void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf);
186 void __drm_puts_seq_file(struct drm_printer *p 87 void __drm_puts_seq_file(struct drm_printer *p, const char *str);
187 void __drm_printfn_info(struct drm_printer *p, 88 void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf);
188 void __drm_printfn_dbg(struct drm_printer *p, !! 89 void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);
189 void __drm_printfn_err(struct drm_printer *p, 90 void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf);
190 91
191 __printf(2, 3) 92 __printf(2, 3)
192 void drm_printf(struct drm_printer *p, const c 93 void drm_printf(struct drm_printer *p, const char *f, ...);
193 void drm_puts(struct drm_printer *p, const cha 94 void drm_puts(struct drm_printer *p, const char *str);
194 void drm_print_regset32(struct drm_printer *p, 95 void drm_print_regset32(struct drm_printer *p, struct debugfs_regset32 *regset);
195 void drm_print_bits(struct drm_printer *p, uns 96 void drm_print_bits(struct drm_printer *p, unsigned long value,
196 const char * const bits[], 97 const char * const bits[], unsigned int nbits);
197 98
198 __printf(2, 0) 99 __printf(2, 0)
199 /** 100 /**
200 * drm_vprintf - print to a &drm_printer strea 101 * drm_vprintf - print to a &drm_printer stream
201 * @p: the &drm_printer 102 * @p: the &drm_printer
202 * @fmt: format string 103 * @fmt: format string
203 * @va: the va_list 104 * @va: the va_list
204 */ 105 */
205 static inline void 106 static inline void
206 drm_vprintf(struct drm_printer *p, const char 107 drm_vprintf(struct drm_printer *p, const char *fmt, va_list *va)
207 { 108 {
208 struct va_format vaf = { .fmt = fmt, . 109 struct va_format vaf = { .fmt = fmt, .va = va };
209 110
210 p->printfn(p, &vaf); 111 p->printfn(p, &vaf);
211 } 112 }
212 113
213 /** 114 /**
214 * drm_printf_indent - Print to a &drm_printer 115 * drm_printf_indent - Print to a &drm_printer stream with indentation
215 * @printer: DRM printer 116 * @printer: DRM printer
216 * @indent: Tab indentation level (max 5) 117 * @indent: Tab indentation level (max 5)
217 * @fmt: Format string 118 * @fmt: Format string
218 */ 119 */
219 #define drm_printf_indent(printer, indent, fmt 120 #define drm_printf_indent(printer, indent, fmt, ...) \
220 drm_printf((printer), "%.*s" fmt, (ind 121 drm_printf((printer), "%.*s" fmt, (indent), "\t\t\t\t\tX", ##__VA_ARGS__)
221 122
222 /** 123 /**
223 * struct drm_print_iterator - local struct us 124 * struct drm_print_iterator - local struct used with drm_printer_coredump
224 * @data: Pointer to the devcoredump output bu 125 * @data: Pointer to the devcoredump output buffer, can be NULL if using
225 * drm_printer_coredump to determine size of d 126 * drm_printer_coredump to determine size of devcoredump
226 * @start: The offset within the buffer to sta 127 * @start: The offset within the buffer to start writing
227 * @remain: The number of bytes to write for t 128 * @remain: The number of bytes to write for this iteration
228 */ 129 */
229 struct drm_print_iterator { 130 struct drm_print_iterator {
230 void *data; 131 void *data;
231 ssize_t start; 132 ssize_t start;
232 ssize_t remain; 133 ssize_t remain;
233 /* private: */ 134 /* private: */
234 ssize_t offset; 135 ssize_t offset;
235 }; 136 };
236 137
237 /** 138 /**
238 * drm_coredump_printer - construct a &drm_pri 139 * drm_coredump_printer - construct a &drm_printer that can output to a buffer
239 * from the read function for devcoredump 140 * from the read function for devcoredump
240 * @iter: A pointer to a struct drm_print_iter 141 * @iter: A pointer to a struct drm_print_iterator for the read instance
241 * 142 *
242 * This wrapper extends drm_printf() to work w 143 * This wrapper extends drm_printf() to work with a dev_coredumpm() callback
243 * function. The passed in drm_print_iterator 144 * function. The passed in drm_print_iterator struct contains the buffer
244 * pointer, size and offset as passed in from 145 * pointer, size and offset as passed in from devcoredump.
245 * 146 *
246 * For example:: 147 * For example::
247 * 148 *
248 * void coredump_read(char *buffer, loff_ 149 * void coredump_read(char *buffer, loff_t offset, size_t count,
249 * void *data, size_t datalen) 150 * void *data, size_t datalen)
250 * { 151 * {
251 * struct drm_print_iterator iter 152 * struct drm_print_iterator iter;
252 * struct drm_printer p; 153 * struct drm_printer p;
253 * 154 *
254 * iter.data = buffer; 155 * iter.data = buffer;
255 * iter.start = offset; 156 * iter.start = offset;
256 * iter.remain = count; 157 * iter.remain = count;
257 * 158 *
258 * p = drm_coredump_printer(&iter 159 * p = drm_coredump_printer(&iter);
259 * 160 *
260 * drm_printf(p, "foo=%d\n", foo) 161 * drm_printf(p, "foo=%d\n", foo);
261 * } 162 * }
262 * 163 *
263 * void makecoredump(...) 164 * void makecoredump(...)
264 * { 165 * {
265 * ... 166 * ...
266 * dev_coredumpm(dev, THIS_MODULE 167 * dev_coredumpm(dev, THIS_MODULE, data, 0, GFP_KERNEL,
267 * coredump_read, ...) 168 * coredump_read, ...)
268 * } 169 * }
269 * 170 *
270 * The above example has a time complexity of 171 * The above example has a time complexity of O(N^2), where N is the size of the
271 * devcoredump. This is acceptable for small d 172 * devcoredump. This is acceptable for small devcoredumps but scales poorly for
272 * larger ones. 173 * larger ones.
273 * 174 *
274 * Another use case for drm_coredump_printer i 175 * Another use case for drm_coredump_printer is to capture the devcoredump into
275 * a saved buffer before the dev_coredump() ca 176 * a saved buffer before the dev_coredump() callback. This involves two passes:
276 * one to determine the size of the devcoredum 177 * one to determine the size of the devcoredump and another to print it to a
277 * buffer. Then, in dev_coredump(), copy from 178 * buffer. Then, in dev_coredump(), copy from the saved buffer into the
278 * devcoredump read buffer. 179 * devcoredump read buffer.
279 * 180 *
280 * For example:: 181 * For example::
281 * 182 *
282 * char *devcoredump_saved_buffer; 183 * char *devcoredump_saved_buffer;
283 * 184 *
284 * ssize_t __coredump_print(char *buffer, 185 * ssize_t __coredump_print(char *buffer, ssize_t count, ...)
285 * { 186 * {
286 * struct drm_print_iterator iter 187 * struct drm_print_iterator iter;
287 * struct drm_printer p; 188 * struct drm_printer p;
288 * 189 *
289 * iter.data = buffer; 190 * iter.data = buffer;
290 * iter.start = 0; 191 * iter.start = 0;
291 * iter.remain = count; 192 * iter.remain = count;
292 * 193 *
293 * p = drm_coredump_printer(&iter 194 * p = drm_coredump_printer(&iter);
294 * 195 *
295 * drm_printf(p, "foo=%d\n", foo) 196 * drm_printf(p, "foo=%d\n", foo);
296 * ... 197 * ...
297 * return count - iter.remain; 198 * return count - iter.remain;
298 * } 199 * }
299 * 200 *
300 * void coredump_print(...) 201 * void coredump_print(...)
301 * { 202 * {
302 * ssize_t count; 203 * ssize_t count;
303 * 204 *
304 * count = __coredump_print(NULL, 205 * count = __coredump_print(NULL, INT_MAX, ...);
305 * devcoredump_saved_buffer = kvm 206 * devcoredump_saved_buffer = kvmalloc(count, GFP_KERNEL);
306 * __coredump_print(devcoredump_s 207 * __coredump_print(devcoredump_saved_buffer, count, ...);
307 * } 208 * }
308 * 209 *
309 * void coredump_read(char *buffer, loff_ 210 * void coredump_read(char *buffer, loff_t offset, size_t count,
310 * void *data, size_t 211 * void *data, size_t datalen)
311 * { 212 * {
312 * ... 213 * ...
313 * memcpy(buffer, devcoredump_sav 214 * memcpy(buffer, devcoredump_saved_buffer + offset, count);
314 * ... 215 * ...
315 * } 216 * }
316 * 217 *
317 * The above example has a time complexity of 218 * The above example has a time complexity of O(N*2), where N is the size of the
318 * devcoredump. This scales better than the pr 219 * devcoredump. This scales better than the previous example for larger
319 * devcoredumps. 220 * devcoredumps.
320 * 221 *
321 * RETURNS: 222 * RETURNS:
322 * The &drm_printer object 223 * The &drm_printer object
323 */ 224 */
324 static inline struct drm_printer 225 static inline struct drm_printer
325 drm_coredump_printer(struct drm_print_iterator 226 drm_coredump_printer(struct drm_print_iterator *iter)
326 { 227 {
327 struct drm_printer p = { 228 struct drm_printer p = {
328 .printfn = __drm_printfn_cored 229 .printfn = __drm_printfn_coredump,
329 .puts = __drm_puts_coredump, 230 .puts = __drm_puts_coredump,
330 .arg = iter, 231 .arg = iter,
331 }; 232 };
332 233
333 /* Set the internal offset of the iter 234 /* Set the internal offset of the iterator to zero */
334 iter->offset = 0; 235 iter->offset = 0;
335 236
336 return p; 237 return p;
337 } 238 }
338 239
339 /** 240 /**
340 * drm_seq_file_printer - construct a &drm_pri 241 * drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file
341 * @f: the &struct seq_file to output to 242 * @f: the &struct seq_file to output to
342 * 243 *
343 * RETURNS: 244 * RETURNS:
344 * The &drm_printer object 245 * The &drm_printer object
345 */ 246 */
346 static inline struct drm_printer drm_seq_file_ 247 static inline struct drm_printer drm_seq_file_printer(struct seq_file *f)
347 { 248 {
348 struct drm_printer p = { 249 struct drm_printer p = {
349 .printfn = __drm_printfn_seq_f 250 .printfn = __drm_printfn_seq_file,
350 .puts = __drm_puts_seq_file, 251 .puts = __drm_puts_seq_file,
351 .arg = f, 252 .arg = f,
352 }; 253 };
353 return p; 254 return p;
354 } 255 }
355 256
356 /** 257 /**
357 * drm_info_printer - construct a &drm_printer 258 * drm_info_printer - construct a &drm_printer that outputs to dev_printk()
358 * @dev: the &struct device pointer 259 * @dev: the &struct device pointer
359 * 260 *
360 * RETURNS: 261 * RETURNS:
361 * The &drm_printer object 262 * The &drm_printer object
362 */ 263 */
363 static inline struct drm_printer drm_info_prin 264 static inline struct drm_printer drm_info_printer(struct device *dev)
364 { 265 {
365 struct drm_printer p = { 266 struct drm_printer p = {
366 .printfn = __drm_printfn_info, 267 .printfn = __drm_printfn_info,
367 .arg = dev, 268 .arg = dev,
368 }; 269 };
369 return p; 270 return p;
370 } 271 }
371 272
372 /** 273 /**
373 * drm_dbg_printer - construct a &drm_printer !! 274 * drm_debug_printer - construct a &drm_printer that outputs to pr_debug()
374 * @drm: the &struct drm_device pointer, or NU !! 275 * @prefix: debug output prefix
375 * @category: the debug category to use <<
376 * @prefix: debug output prefix, or NULL for n <<
377 * 276 *
378 * RETURNS: 277 * RETURNS:
379 * The &drm_printer object 278 * The &drm_printer object
380 */ 279 */
381 static inline struct drm_printer drm_dbg_print !! 280 static inline struct drm_printer drm_debug_printer(const char *prefix)
382 <<
383 <<
384 { 281 {
385 struct drm_printer p = { 282 struct drm_printer p = {
386 .printfn = __drm_printfn_dbg, !! 283 .printfn = __drm_printfn_debug,
387 .arg = drm, !! 284 .prefix = prefix
388 .origin = (const void *)_THIS_ <<
389 .prefix = prefix, <<
390 .category = category, <<
391 }; 285 };
392 return p; 286 return p;
393 } 287 }
394 288
395 /** 289 /**
396 * drm_err_printer - construct a &drm_printer !! 290 * drm_err_printer - construct a &drm_printer that outputs to pr_err()
397 * @drm: the &struct drm_device pointer !! 291 * @prefix: debug output prefix
398 * @prefix: debug output prefix, or NULL for n <<
399 * 292 *
400 * RETURNS: 293 * RETURNS:
401 * The &drm_printer object 294 * The &drm_printer object
402 */ 295 */
403 static inline struct drm_printer drm_err_print !! 296 static inline struct drm_printer drm_err_printer(const char *prefix)
404 <<
405 { 297 {
406 struct drm_printer p = { 298 struct drm_printer p = {
407 .printfn = __drm_printfn_err, 299 .printfn = __drm_printfn_err,
408 .arg = drm, <<
409 .prefix = prefix 300 .prefix = prefix
410 }; 301 };
411 return p; 302 return p;
412 } 303 }
413 304
>> 305 /**
>> 306 * enum drm_debug_category - The DRM debug categories
>> 307 *
>> 308 * Each of the DRM debug logging macros use a specific category, and the logging
>> 309 * is filtered by the drm.debug module parameter. This enum specifies the values
>> 310 * for the interface.
>> 311 *
>> 312 * Each DRM_DEBUG_<CATEGORY> macro logs to DRM_UT_<CATEGORY> category, except
>> 313 * DRM_DEBUG() logs to DRM_UT_CORE.
>> 314 *
>> 315 * Enabling verbose debug messages is done through the drm.debug parameter, each
>> 316 * category being enabled by a bit:
>> 317 *
>> 318 * - drm.debug=0x1 will enable CORE messages
>> 319 * - drm.debug=0x2 will enable DRIVER messages
>> 320 * - drm.debug=0x3 will enable CORE and DRIVER messages
>> 321 * - ...
>> 322 * - drm.debug=0x1ff will enable all messages
>> 323 *
>> 324 * An interesting feature is that it's possible to enable verbose logging at
>> 325 * run-time by echoing the debug value in its sysfs node::
>> 326 *
>> 327 * # echo 0xf > /sys/module/drm/parameters/debug
>> 328 *
>> 329 */
>> 330 enum drm_debug_category {
>> 331 /* These names must match those in DYNAMIC_DEBUG_CLASSBITS */
>> 332 /**
>> 333 * @DRM_UT_CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c,
>> 334 * drm_memory.c, ...
>> 335 */
>> 336 DRM_UT_CORE,
>> 337 /**
>> 338 * @DRM_UT_DRIVER: Used in the vendor specific part of the driver: i915,
>> 339 * radeon, ... macro.
>> 340 */
>> 341 DRM_UT_DRIVER,
>> 342 /**
>> 343 * @DRM_UT_KMS: Used in the modesetting code.
>> 344 */
>> 345 DRM_UT_KMS,
>> 346 /**
>> 347 * @DRM_UT_PRIME: Used in the prime code.
>> 348 */
>> 349 DRM_UT_PRIME,
>> 350 /**
>> 351 * @DRM_UT_ATOMIC: Used in the atomic code.
>> 352 */
>> 353 DRM_UT_ATOMIC,
>> 354 /**
>> 355 * @DRM_UT_VBL: Used for verbose debug message in the vblank code.
>> 356 */
>> 357 DRM_UT_VBL,
>> 358 /**
>> 359 * @DRM_UT_STATE: Used for verbose atomic state debugging.
>> 360 */
>> 361 DRM_UT_STATE,
>> 362 /**
>> 363 * @DRM_UT_LEASE: Used in the lease code.
>> 364 */
>> 365 DRM_UT_LEASE,
>> 366 /**
>> 367 * @DRM_UT_DP: Used in the DP code.
>> 368 */
>> 369 DRM_UT_DP,
>> 370 /**
>> 371 * @DRM_UT_DRMRES: Used in the drm managed resources code.
>> 372 */
>> 373 DRM_UT_DRMRES
>> 374 };
>> 375
>> 376 static inline bool drm_debug_enabled_raw(enum drm_debug_category category)
>> 377 {
>> 378 return unlikely(__drm_debug & BIT(category));
>> 379 }
>> 380
>> 381 #define drm_debug_enabled_instrumented(category) \
>> 382 ({ \
>> 383 pr_debug("todo: is this frequent enough to optimize ?\n"); \
>> 384 drm_debug_enabled_raw(category); \
>> 385 })
>> 386
>> 387 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
>> 388 /*
>> 389 * the drm.debug API uses dyndbg, so each drm_*dbg macro/callsite gets
>> 390 * a descriptor, and only enabled callsites are reachable. They use
>> 391 * the private macro to avoid re-testing the enable-bit.
>> 392 */
>> 393 #define __drm_debug_enabled(category) true
>> 394 #define drm_debug_enabled(category) drm_debug_enabled_instrumented(category)
>> 395 #else
>> 396 #define __drm_debug_enabled(category) drm_debug_enabled_raw(category)
>> 397 #define drm_debug_enabled(category) drm_debug_enabled_raw(category)
>> 398 #endif
>> 399
414 /* 400 /*
415 * struct device based logging 401 * struct device based logging
416 * 402 *
417 * Prefer drm_device based logging over device 403 * Prefer drm_device based logging over device or printk based logging.
418 */ 404 */
419 405
420 __printf(3, 4) 406 __printf(3, 4)
421 void drm_dev_printk(const struct device *dev, 407 void drm_dev_printk(const struct device *dev, const char *level,
422 const char *format, ...); 408 const char *format, ...);
423 struct _ddebug; 409 struct _ddebug;
424 __printf(4, 5) 410 __printf(4, 5)
425 void __drm_dev_dbg(struct _ddebug *desc, const 411 void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev,
426 enum drm_debug_category cat 412 enum drm_debug_category category, const char *format, ...);
427 413
428 /** 414 /**
429 * DRM_DEV_ERROR() - Error output. 415 * DRM_DEV_ERROR() - Error output.
430 * 416 *
431 * NOTE: this is deprecated in favor of drm_er 417 * NOTE: this is deprecated in favor of drm_err() or dev_err().
432 * 418 *
433 * @dev: device pointer 419 * @dev: device pointer
434 * @fmt: printf() like format string. 420 * @fmt: printf() like format string.
435 */ 421 */
436 #define DRM_DEV_ERROR(dev, fmt, ...) 422 #define DRM_DEV_ERROR(dev, fmt, ...) \
437 drm_dev_printk(dev, KERN_ERR, "*ERROR* 423 drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__)
438 424
439 /** 425 /**
440 * DRM_DEV_ERROR_RATELIMITED() - Rate limited 426 * DRM_DEV_ERROR_RATELIMITED() - Rate limited error output.
441 * 427 *
442 * NOTE: this is deprecated in favor of drm_er 428 * NOTE: this is deprecated in favor of drm_err_ratelimited() or
443 * dev_err_ratelimited(). 429 * dev_err_ratelimited().
444 * 430 *
445 * @dev: device pointer 431 * @dev: device pointer
446 * @fmt: printf() like format string. 432 * @fmt: printf() like format string.
447 * 433 *
448 * Like DRM_ERROR() but won't flood the log. 434 * Like DRM_ERROR() but won't flood the log.
449 */ 435 */
450 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, .. 436 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \
451 ({ 437 ({ \
452 static DEFINE_RATELIMIT_STATE(_rs, 438 static DEFINE_RATELIMIT_STATE(_rs, \
453 DEFAULT_ 439 DEFAULT_RATELIMIT_INTERVAL, \
454 DEFAULT_ 440 DEFAULT_RATELIMIT_BURST); \
455 441 \
456 if (__ratelimit(&_rs)) 442 if (__ratelimit(&_rs)) \
457 DRM_DEV_ERROR(dev, fmt, ##__VA 443 DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \
458 }) 444 })
459 445
460 /* NOTE: this is deprecated in favor of drm_in 446 /* NOTE: this is deprecated in favor of drm_info() or dev_info(). */
461 #define DRM_DEV_INFO(dev, fmt, ...) 447 #define DRM_DEV_INFO(dev, fmt, ...) \
462 drm_dev_printk(dev, KERN_INFO, fmt, ## 448 drm_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__)
463 449
464 /* NOTE: this is deprecated in favor of drm_in 450 /* NOTE: this is deprecated in favor of drm_info_once() or dev_info_once(). */
465 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) 451 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \
466 ({ 452 ({ \
467 static bool __print_once __read_mostly 453 static bool __print_once __read_mostly; \
468 if (!__print_once) { 454 if (!__print_once) { \
469 __print_once = true; 455 __print_once = true; \
470 DRM_DEV_INFO(dev, fmt, ##__VA_ 456 DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \
471 } 457 } \
472 }) 458 })
473 459
474 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) 460 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
475 #define drm_dev_dbg(dev, cat, fmt, ...) 461 #define drm_dev_dbg(dev, cat, fmt, ...) \
476 __drm_dev_dbg(NULL, dev, cat, fmt, ##_ 462 __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__)
477 #else 463 #else
478 #define drm_dev_dbg(dev, cat, fmt, ...) 464 #define drm_dev_dbg(dev, cat, fmt, ...) \
479 _dynamic_func_call_cls(cat, fmt, __drm 465 _dynamic_func_call_cls(cat, fmt, __drm_dev_dbg, \
480 dev, cat, fmt, 466 dev, cat, fmt, ##__VA_ARGS__)
481 #endif 467 #endif
482 468
483 /** 469 /**
484 * DRM_DEV_DEBUG() - Debug output for generic 470 * DRM_DEV_DEBUG() - Debug output for generic drm code
485 * 471 *
486 * NOTE: this is deprecated in favor of drm_db 472 * NOTE: this is deprecated in favor of drm_dbg_core().
487 * 473 *
488 * @dev: device pointer 474 * @dev: device pointer
489 * @fmt: printf() like format string. 475 * @fmt: printf() like format string.
490 */ 476 */
491 #define DRM_DEV_DEBUG(dev, fmt, ...) 477 #define DRM_DEV_DEBUG(dev, fmt, ...) \
492 drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##_ 478 drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##__VA_ARGS__)
493 /** 479 /**
494 * DRM_DEV_DEBUG_DRIVER() - Debug output for v 480 * DRM_DEV_DEBUG_DRIVER() - Debug output for vendor specific part of the driver
495 * 481 *
496 * NOTE: this is deprecated in favor of drm_db 482 * NOTE: this is deprecated in favor of drm_dbg() or dev_dbg().
497 * 483 *
498 * @dev: device pointer 484 * @dev: device pointer
499 * @fmt: printf() like format string. 485 * @fmt: printf() like format string.
500 */ 486 */
501 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) 487 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) \
502 drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, # 488 drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
503 /** 489 /**
504 * DRM_DEV_DEBUG_KMS() - Debug output for mode 490 * DRM_DEV_DEBUG_KMS() - Debug output for modesetting code
505 * 491 *
506 * NOTE: this is deprecated in favor of drm_db 492 * NOTE: this is deprecated in favor of drm_dbg_kms().
507 * 493 *
508 * @dev: device pointer 494 * @dev: device pointer
509 * @fmt: printf() like format string. 495 * @fmt: printf() like format string.
510 */ 496 */
511 #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) 497 #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) \
512 drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__ 498 drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
513 499
514 /* 500 /*
515 * struct drm_device based logging 501 * struct drm_device based logging
516 * 502 *
517 * Prefer drm_device based logging over device 503 * Prefer drm_device based logging over device or prink based logging.
518 */ 504 */
519 505
520 /* Helper for struct drm_device based logging. 506 /* Helper for struct drm_device based logging. */
521 #define __drm_printk(drm, level, type, fmt, .. 507 #define __drm_printk(drm, level, type, fmt, ...) \
522 dev_##level##type((drm) ? (drm)->dev : !! 508 dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
523 509
524 510
525 #define drm_info(drm, fmt, ...) 511 #define drm_info(drm, fmt, ...) \
526 __drm_printk((drm), info,, fmt, ##__VA 512 __drm_printk((drm), info,, fmt, ##__VA_ARGS__)
527 513
528 #define drm_notice(drm, fmt, ...) 514 #define drm_notice(drm, fmt, ...) \
529 __drm_printk((drm), notice,, fmt, ##__ 515 __drm_printk((drm), notice,, fmt, ##__VA_ARGS__)
530 516
531 #define drm_warn(drm, fmt, ...) 517 #define drm_warn(drm, fmt, ...) \
532 __drm_printk((drm), warn,, fmt, ##__VA 518 __drm_printk((drm), warn,, fmt, ##__VA_ARGS__)
533 519
534 #define drm_err(drm, fmt, ...) 520 #define drm_err(drm, fmt, ...) \
535 __drm_printk((drm), err,, "*ERROR* " f 521 __drm_printk((drm), err,, "*ERROR* " fmt, ##__VA_ARGS__)
536 522
537 523
538 #define drm_info_once(drm, fmt, ...) 524 #define drm_info_once(drm, fmt, ...) \
539 __drm_printk((drm), info, _once, fmt, 525 __drm_printk((drm), info, _once, fmt, ##__VA_ARGS__)
540 526
541 #define drm_notice_once(drm, fmt, ...) 527 #define drm_notice_once(drm, fmt, ...) \
542 __drm_printk((drm), notice, _once, fmt 528 __drm_printk((drm), notice, _once, fmt, ##__VA_ARGS__)
543 529
544 #define drm_warn_once(drm, fmt, ...) 530 #define drm_warn_once(drm, fmt, ...) \
545 __drm_printk((drm), warn, _once, fmt, 531 __drm_printk((drm), warn, _once, fmt, ##__VA_ARGS__)
546 532
547 #define drm_err_once(drm, fmt, ...) 533 #define drm_err_once(drm, fmt, ...) \
548 __drm_printk((drm), err, _once, "*ERRO 534 __drm_printk((drm), err, _once, "*ERROR* " fmt, ##__VA_ARGS__)
549 535
550 536
551 #define drm_err_ratelimited(drm, fmt, ...) 537 #define drm_err_ratelimited(drm, fmt, ...) \
552 __drm_printk((drm), err, _ratelimited, 538 __drm_printk((drm), err, _ratelimited, "*ERROR* " fmt, ##__VA_ARGS__)
553 539
554 540
555 #define drm_dbg_core(drm, fmt, ...) 541 #define drm_dbg_core(drm, fmt, ...) \
556 drm_dev_dbg((drm) ? (drm)->dev : NULL, 542 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__)
557 #define drm_dbg_driver(drm, fmt, ...) 543 #define drm_dbg_driver(drm, fmt, ...) \
558 drm_dev_dbg((drm) ? (drm)->dev : NULL, 544 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
559 #define drm_dbg_kms(drm, fmt, ...) 545 #define drm_dbg_kms(drm, fmt, ...) \
560 drm_dev_dbg((drm) ? (drm)->dev : NULL, 546 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__)
561 #define drm_dbg_prime(drm, fmt, ...) 547 #define drm_dbg_prime(drm, fmt, ...) \
562 drm_dev_dbg((drm) ? (drm)->dev : NULL, 548 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
563 #define drm_dbg_atomic(drm, fmt, ...) 549 #define drm_dbg_atomic(drm, fmt, ...) \
564 drm_dev_dbg((drm) ? (drm)->dev : NULL, 550 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
565 #define drm_dbg_vbl(drm, fmt, ...) 551 #define drm_dbg_vbl(drm, fmt, ...) \
566 drm_dev_dbg((drm) ? (drm)->dev : NULL, 552 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__)
567 #define drm_dbg_state(drm, fmt, ...) 553 #define drm_dbg_state(drm, fmt, ...) \
568 drm_dev_dbg((drm) ? (drm)->dev : NULL, 554 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__)
569 #define drm_dbg_lease(drm, fmt, ...) 555 #define drm_dbg_lease(drm, fmt, ...) \
570 drm_dev_dbg((drm) ? (drm)->dev : NULL, 556 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__)
571 #define drm_dbg_dp(drm, fmt, ...) 557 #define drm_dbg_dp(drm, fmt, ...) \
572 drm_dev_dbg((drm) ? (drm)->dev : NULL, 558 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__)
573 #define drm_dbg_drmres(drm, fmt, ...) 559 #define drm_dbg_drmres(drm, fmt, ...) \
574 drm_dev_dbg((drm) ? (drm)->dev : NULL, 560 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__)
575 561
576 #define drm_dbg(drm, fmt, ...) drm_dbg_driver 562 #define drm_dbg(drm, fmt, ...) drm_dbg_driver(drm, fmt, ##__VA_ARGS__)
577 563
578 /* 564 /*
579 * printk based logging 565 * printk based logging
580 * 566 *
581 * Prefer drm_device based logging over device 567 * Prefer drm_device based logging over device or prink based logging.
582 */ 568 */
583 569
>> 570 __printf(3, 4)
>> 571 void ___drm_dbg(struct _ddebug *desc, enum drm_debug_category category, const char *format, ...);
584 __printf(1, 2) 572 __printf(1, 2)
585 void __drm_err(const char *format, ...); 573 void __drm_err(const char *format, ...);
586 574
587 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) 575 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
588 #define __drm_dbg(cat, fmt, ...) __drm_ !! 576 #define __drm_dbg(cat, fmt, ...) ___drm_dbg(NULL, cat, fmt, ##__VA_ARGS__)
589 #else 577 #else
590 #define __drm_dbg(cat, fmt, ...) 578 #define __drm_dbg(cat, fmt, ...) \
591 _dynamic_func_call_cls(cat, fmt, __drm !! 579 _dynamic_func_call_cls(cat, fmt, ___drm_dbg, \
592 NULL, cat, fmt, !! 580 cat, fmt, ##__VA_ARGS__)
593 #endif 581 #endif
594 582
595 /* Macros to make printk easier */ 583 /* Macros to make printk easier */
596 584
597 #define _DRM_PRINTK(once, level, fmt, ...) 585 #define _DRM_PRINTK(once, level, fmt, ...) \
598 printk##once(KERN_##level "[" DRM_NAME 586 printk##once(KERN_##level "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
599 587
600 /* NOTE: this is deprecated in favor of pr_inf 588 /* NOTE: this is deprecated in favor of pr_info(). */
601 #define DRM_INFO(fmt, ...) 589 #define DRM_INFO(fmt, ...) \
602 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__ 590 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
603 /* NOTE: this is deprecated in favor of pr_not 591 /* NOTE: this is deprecated in favor of pr_notice(). */
604 #define DRM_NOTE(fmt, ...) 592 #define DRM_NOTE(fmt, ...) \
605 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS 593 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
606 /* NOTE: this is deprecated in favor of pr_war 594 /* NOTE: this is deprecated in favor of pr_warn(). */
607 #define DRM_WARN(fmt, ...) 595 #define DRM_WARN(fmt, ...) \
608 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARG 596 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
609 597
610 /* NOTE: this is deprecated in favor of pr_inf 598 /* NOTE: this is deprecated in favor of pr_info_once(). */
611 #define DRM_INFO_ONCE(fmt, ...) 599 #define DRM_INFO_ONCE(fmt, ...) \
612 _DRM_PRINTK(_once, INFO, fmt, ##__VA_A 600 _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
613 /* NOTE: this is deprecated in favor of pr_not 601 /* NOTE: this is deprecated in favor of pr_notice_once(). */
614 #define DRM_NOTE_ONCE(fmt, ...) 602 #define DRM_NOTE_ONCE(fmt, ...) \
615 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA 603 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
616 /* NOTE: this is deprecated in favor of pr_war 604 /* NOTE: this is deprecated in favor of pr_warn_once(). */
617 #define DRM_WARN_ONCE(fmt, ...) 605 #define DRM_WARN_ONCE(fmt, ...) \
618 _DRM_PRINTK(_once, WARNING, fmt, ##__V 606 _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
619 607
620 /* NOTE: this is deprecated in favor of pr_err 608 /* NOTE: this is deprecated in favor of pr_err(). */
621 #define DRM_ERROR(fmt, ...) 609 #define DRM_ERROR(fmt, ...) \
622 __drm_err(fmt, ##__VA_ARGS__) 610 __drm_err(fmt, ##__VA_ARGS__)
623 611
624 /* NOTE: this is deprecated in favor of pr_err 612 /* NOTE: this is deprecated in favor of pr_err_ratelimited(). */
625 #define DRM_ERROR_RATELIMITED(fmt, ...) 613 #define DRM_ERROR_RATELIMITED(fmt, ...) \
626 DRM_DEV_ERROR_RATELIMITED(NULL, fmt, # 614 DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
627 615
628 /* NOTE: this is deprecated in favor of drm_db 616 /* NOTE: this is deprecated in favor of drm_dbg_core(NULL, ...). */
629 #define DRM_DEBUG(fmt, ...) 617 #define DRM_DEBUG(fmt, ...) \
630 __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARG 618 __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARGS__)
631 619
632 /* NOTE: this is deprecated in favor of drm_db 620 /* NOTE: this is deprecated in favor of drm_dbg(NULL, ...). */
633 #define DRM_DEBUG_DRIVER(fmt, ...) 621 #define DRM_DEBUG_DRIVER(fmt, ...) \
634 __drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_A 622 __drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
635 623
636 /* NOTE: this is deprecated in favor of drm_db 624 /* NOTE: this is deprecated in favor of drm_dbg_kms(NULL, ...). */
637 #define DRM_DEBUG_KMS(fmt, ...) 625 #define DRM_DEBUG_KMS(fmt, ...) \
638 __drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS 626 __drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS__)
639 627
640 /* NOTE: this is deprecated in favor of drm_db 628 /* NOTE: this is deprecated in favor of drm_dbg_prime(NULL, ...). */
641 #define DRM_DEBUG_PRIME(fmt, ...) 629 #define DRM_DEBUG_PRIME(fmt, ...) \
642 __drm_dbg(DRM_UT_PRIME, fmt, ##__VA_AR 630 __drm_dbg(DRM_UT_PRIME, fmt, ##__VA_ARGS__)
643 631
644 /* NOTE: this is deprecated in favor of drm_db 632 /* NOTE: this is deprecated in favor of drm_dbg_atomic(NULL, ...). */
645 #define DRM_DEBUG_ATOMIC(fmt, ...) 633 #define DRM_DEBUG_ATOMIC(fmt, ...) \
646 __drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_A 634 __drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
647 635
648 /* NOTE: this is deprecated in favor of drm_db 636 /* NOTE: this is deprecated in favor of drm_dbg_vbl(NULL, ...). */
649 #define DRM_DEBUG_VBL(fmt, ...) 637 #define DRM_DEBUG_VBL(fmt, ...) \
650 __drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS 638 __drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS__)
651 639
652 /* NOTE: this is deprecated in favor of drm_db 640 /* NOTE: this is deprecated in favor of drm_dbg_lease(NULL, ...). */
653 #define DRM_DEBUG_LEASE(fmt, ...) 641 #define DRM_DEBUG_LEASE(fmt, ...) \
654 __drm_dbg(DRM_UT_LEASE, fmt, ##__VA_AR 642 __drm_dbg(DRM_UT_LEASE, fmt, ##__VA_ARGS__)
655 643
656 /* NOTE: this is deprecated in favor of drm_db 644 /* NOTE: this is deprecated in favor of drm_dbg_dp(NULL, ...). */
657 #define DRM_DEBUG_DP(fmt, ...) 645 #define DRM_DEBUG_DP(fmt, ...) \
658 __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS 646 __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS__)
659 647
660 #define __DRM_DEFINE_DBG_RATELIMITED(category, 648 #define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...) \
661 ({ 649 ({ \
662 static DEFINE_RATELIMIT_STATE(rs_, DEF 650 static DEFINE_RATELIMIT_STATE(rs_, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);\
663 const struct drm_device *drm_ = (drm); 651 const struct drm_device *drm_ = (drm); \
664 652 \
665 if (drm_debug_enabled(DRM_UT_ ## categ 653 if (drm_debug_enabled(DRM_UT_ ## category) && __ratelimit(&rs_)) \
666 drm_dev_printk(drm_ ? drm_->de 654 drm_dev_printk(drm_ ? drm_->dev : NULL, KERN_DEBUG, fmt, ## __VA_ARGS__); \
667 }) 655 })
668 656
669 #define drm_dbg_ratelimited(drm, fmt, ...) \ <<
670 __DRM_DEFINE_DBG_RATELIMITED(DRIVER, d <<
671 <<
672 #define drm_dbg_kms_ratelimited(drm, fmt, ...) 657 #define drm_dbg_kms_ratelimited(drm, fmt, ...) \
673 __DRM_DEFINE_DBG_RATELIMITED(KMS, drm, 658 __DRM_DEFINE_DBG_RATELIMITED(KMS, drm, fmt, ## __VA_ARGS__)
674 659
>> 660 /* NOTE: this is deprecated in favor of drm_dbg_kms_ratelimited(NULL, ...). */
>> 661 #define DRM_DEBUG_KMS_RATELIMITED(fmt, ...) drm_dbg_kms_ratelimited(NULL, fmt, ## __VA_ARGS__)
>> 662
675 /* 663 /*
676 * struct drm_device based WARNs 664 * struct drm_device based WARNs
677 * 665 *
678 * drm_WARN*() acts like WARN*(), but with the 666 * drm_WARN*() acts like WARN*(), but with the key difference of
679 * using device specific information so that w 667 * using device specific information so that we know from which device
680 * warning is originating from. 668 * warning is originating from.
681 * 669 *
682 * Prefer drm_device based drm_WARN* over regu 670 * Prefer drm_device based drm_WARN* over regular WARN*
683 */ 671 */
684 672
685 /* Helper for struct drm_device based WARNs */ 673 /* Helper for struct drm_device based WARNs */
686 #define drm_WARN(drm, condition, format, arg.. 674 #define drm_WARN(drm, condition, format, arg...) \
687 WARN(condition, "%s %s: [drm] " format !! 675 WARN(condition, "%s %s: " format, \
688 dev_driver_string((drm 676 dev_driver_string((drm)->dev), \
689 dev_name((drm)->dev), 677 dev_name((drm)->dev), ## arg)
690 678
691 #define drm_WARN_ONCE(drm, condition, format, 679 #define drm_WARN_ONCE(drm, condition, format, arg...) \
692 WARN_ONCE(condition, "%s %s: [drm] " f !! 680 WARN_ONCE(condition, "%s %s: " format, \
693 dev_driver_string((drm 681 dev_driver_string((drm)->dev), \
694 dev_name((drm)->dev), 682 dev_name((drm)->dev), ## arg)
695 683
696 #define drm_WARN_ON(drm, x) 684 #define drm_WARN_ON(drm, x) \
697 drm_WARN((drm), (x), "%s", 685 drm_WARN((drm), (x), "%s", \
698 "drm_WARN_ON(" __stringify(x) 686 "drm_WARN_ON(" __stringify(x) ")")
699 687
700 #define drm_WARN_ON_ONCE(drm, x) 688 #define drm_WARN_ON_ONCE(drm, x) \
701 drm_WARN_ONCE((drm), (x), "%s", 689 drm_WARN_ONCE((drm), (x), "%s", \
702 "drm_WARN_ON_ONCE(" __st 690 "drm_WARN_ON_ONCE(" __stringify(x) ")")
703 691
704 #endif /* DRM_PRINT_H_ */ 692 #endif /* DRM_PRINT_H_ */
705 693
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