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
225 * drm_printer_coredump to determine size of d <<
226 * @start: The offset within the buffer to sta 126 * @start: The offset within the buffer to start writing
227 * @remain: The number of bytes to write for t 127 * @remain: The number of bytes to write for this iteration
228 */ 128 */
229 struct drm_print_iterator { 129 struct drm_print_iterator {
230 void *data; 130 void *data;
231 ssize_t start; 131 ssize_t start;
232 ssize_t remain; 132 ssize_t remain;
233 /* private: */ 133 /* private: */
234 ssize_t offset; 134 ssize_t offset;
235 }; 135 };
236 136
237 /** 137 /**
238 * drm_coredump_printer - construct a &drm_pri 138 * drm_coredump_printer - construct a &drm_printer that can output to a buffer
239 * from the read function for devcoredump 139 * from the read function for devcoredump
240 * @iter: A pointer to a struct drm_print_iter 140 * @iter: A pointer to a struct drm_print_iterator for the read instance
241 * 141 *
242 * This wrapper extends drm_printf() to work w 142 * This wrapper extends drm_printf() to work with a dev_coredumpm() callback
243 * function. The passed in drm_print_iterator 143 * function. The passed in drm_print_iterator struct contains the buffer
244 * pointer, size and offset as passed in from 144 * pointer, size and offset as passed in from devcoredump.
245 * 145 *
246 * For example:: 146 * For example::
247 * 147 *
248 * void coredump_read(char *buffer, loff_ 148 * void coredump_read(char *buffer, loff_t offset, size_t count,
249 * void *data, size_t datalen) 149 * void *data, size_t datalen)
250 * { 150 * {
251 * struct drm_print_iterator iter 151 * struct drm_print_iterator iter;
252 * struct drm_printer p; 152 * struct drm_printer p;
253 * 153 *
254 * iter.data = buffer; 154 * iter.data = buffer;
255 * iter.start = offset; 155 * iter.start = offset;
256 * iter.remain = count; 156 * iter.remain = count;
257 * 157 *
258 * p = drm_coredump_printer(&iter 158 * p = drm_coredump_printer(&iter);
259 * 159 *
260 * drm_printf(p, "foo=%d\n", foo) 160 * drm_printf(p, "foo=%d\n", foo);
261 * } 161 * }
262 * 162 *
263 * void makecoredump(...) 163 * void makecoredump(...)
264 * { 164 * {
265 * ... 165 * ...
266 * dev_coredumpm(dev, THIS_MODULE 166 * dev_coredumpm(dev, THIS_MODULE, data, 0, GFP_KERNEL,
267 * coredump_read, ...) 167 * coredump_read, ...)
268 * } 168 * }
269 * 169 *
270 * The above example has a time complexity of <<
271 * devcoredump. This is acceptable for small d <<
272 * larger ones. <<
273 * <<
274 * Another use case for drm_coredump_printer i <<
275 * a saved buffer before the dev_coredump() ca <<
276 * one to determine the size of the devcoredum <<
277 * buffer. Then, in dev_coredump(), copy from <<
278 * devcoredump read buffer. <<
279 * <<
280 * For example:: <<
281 * <<
282 * char *devcoredump_saved_buffer; <<
283 * <<
284 * ssize_t __coredump_print(char *buffer, <<
285 * { <<
286 * struct drm_print_iterator iter <<
287 * struct drm_printer p; <<
288 * <<
289 * iter.data = buffer; <<
290 * iter.start = 0; <<
291 * iter.remain = count; <<
292 * <<
293 * p = drm_coredump_printer(&iter <<
294 * <<
295 * drm_printf(p, "foo=%d\n", foo) <<
296 * ... <<
297 * return count - iter.remain; <<
298 * } <<
299 * <<
300 * void coredump_print(...) <<
301 * { <<
302 * ssize_t count; <<
303 * <<
304 * count = __coredump_print(NULL, <<
305 * devcoredump_saved_buffer = kvm <<
306 * __coredump_print(devcoredump_s <<
307 * } <<
308 * <<
309 * void coredump_read(char *buffer, loff_ <<
310 * void *data, size_t <<
311 * { <<
312 * ... <<
313 * memcpy(buffer, devcoredump_sav <<
314 * ... <<
315 * } <<
316 * <<
317 * The above example has a time complexity of <<
318 * devcoredump. This scales better than the pr <<
319 * devcoredumps. <<
320 * <<
321 * RETURNS: 170 * RETURNS:
322 * The &drm_printer object 171 * The &drm_printer object
323 */ 172 */
324 static inline struct drm_printer 173 static inline struct drm_printer
325 drm_coredump_printer(struct drm_print_iterator 174 drm_coredump_printer(struct drm_print_iterator *iter)
326 { 175 {
327 struct drm_printer p = { 176 struct drm_printer p = {
328 .printfn = __drm_printfn_cored 177 .printfn = __drm_printfn_coredump,
329 .puts = __drm_puts_coredump, 178 .puts = __drm_puts_coredump,
330 .arg = iter, 179 .arg = iter,
331 }; 180 };
332 181
333 /* Set the internal offset of the iter 182 /* Set the internal offset of the iterator to zero */
334 iter->offset = 0; 183 iter->offset = 0;
335 184
336 return p; 185 return p;
337 } 186 }
338 187
339 /** 188 /**
340 * drm_seq_file_printer - construct a &drm_pri 189 * drm_seq_file_printer - construct a &drm_printer that outputs to &seq_file
341 * @f: the &struct seq_file to output to 190 * @f: the &struct seq_file to output to
342 * 191 *
343 * RETURNS: 192 * RETURNS:
344 * The &drm_printer object 193 * The &drm_printer object
345 */ 194 */
346 static inline struct drm_printer drm_seq_file_ 195 static inline struct drm_printer drm_seq_file_printer(struct seq_file *f)
347 { 196 {
348 struct drm_printer p = { 197 struct drm_printer p = {
349 .printfn = __drm_printfn_seq_f 198 .printfn = __drm_printfn_seq_file,
350 .puts = __drm_puts_seq_file, 199 .puts = __drm_puts_seq_file,
351 .arg = f, 200 .arg = f,
352 }; 201 };
353 return p; 202 return p;
354 } 203 }
355 204
356 /** 205 /**
357 * drm_info_printer - construct a &drm_printer 206 * drm_info_printer - construct a &drm_printer that outputs to dev_printk()
358 * @dev: the &struct device pointer 207 * @dev: the &struct device pointer
359 * 208 *
360 * RETURNS: 209 * RETURNS:
361 * The &drm_printer object 210 * The &drm_printer object
362 */ 211 */
363 static inline struct drm_printer drm_info_prin 212 static inline struct drm_printer drm_info_printer(struct device *dev)
364 { 213 {
365 struct drm_printer p = { 214 struct drm_printer p = {
366 .printfn = __drm_printfn_info, 215 .printfn = __drm_printfn_info,
367 .arg = dev, 216 .arg = dev,
368 }; 217 };
369 return p; 218 return p;
370 } 219 }
371 220
372 /** 221 /**
373 * drm_dbg_printer - construct a &drm_printer !! 222 * drm_debug_printer - construct a &drm_printer that outputs to pr_debug()
374 * @drm: the &struct drm_device pointer, or NU !! 223 * @prefix: debug output prefix
375 * @category: the debug category to use <<
376 * @prefix: debug output prefix, or NULL for n <<
377 * 224 *
378 * RETURNS: 225 * RETURNS:
379 * The &drm_printer object 226 * The &drm_printer object
380 */ 227 */
381 static inline struct drm_printer drm_dbg_print !! 228 static inline struct drm_printer drm_debug_printer(const char *prefix)
382 <<
383 <<
384 { 229 {
385 struct drm_printer p = { 230 struct drm_printer p = {
386 .printfn = __drm_printfn_dbg, !! 231 .printfn = __drm_printfn_debug,
387 .arg = drm, !! 232 .prefix = prefix
388 .origin = (const void *)_THIS_ <<
389 .prefix = prefix, <<
390 .category = category, <<
391 }; 233 };
392 return p; 234 return p;
393 } 235 }
394 236
395 /** 237 /**
396 * drm_err_printer - construct a &drm_printer !! 238 * drm_err_printer - construct a &drm_printer that outputs to pr_err()
397 * @drm: the &struct drm_device pointer !! 239 * @prefix: debug output prefix
398 * @prefix: debug output prefix, or NULL for n <<
399 * 240 *
400 * RETURNS: 241 * RETURNS:
401 * The &drm_printer object 242 * The &drm_printer object
402 */ 243 */
403 static inline struct drm_printer drm_err_print !! 244 static inline struct drm_printer drm_err_printer(const char *prefix)
404 <<
405 { 245 {
406 struct drm_printer p = { 246 struct drm_printer p = {
407 .printfn = __drm_printfn_err, 247 .printfn = __drm_printfn_err,
408 .arg = drm, <<
409 .prefix = prefix 248 .prefix = prefix
410 }; 249 };
411 return p; 250 return p;
412 } 251 }
413 252
>> 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
414 /* 348 /*
415 * struct device based logging 349 * struct device based logging
416 * 350 *
417 * Prefer drm_device based logging over device 351 * Prefer drm_device based logging over device or printk based logging.
418 */ 352 */
419 353
420 __printf(3, 4) 354 __printf(3, 4)
421 void drm_dev_printk(const struct device *dev, 355 void drm_dev_printk(const struct device *dev, const char *level,
422 const char *format, ...); 356 const char *format, ...);
423 struct _ddebug; 357 struct _ddebug;
424 __printf(4, 5) 358 __printf(4, 5)
425 void __drm_dev_dbg(struct _ddebug *desc, const 359 void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev,
426 enum drm_debug_category cat 360 enum drm_debug_category category, const char *format, ...);
427 361
428 /** 362 /**
429 * DRM_DEV_ERROR() - Error output. 363 * DRM_DEV_ERROR() - Error output.
430 * 364 *
431 * NOTE: this is deprecated in favor of drm_er 365 * NOTE: this is deprecated in favor of drm_err() or dev_err().
432 * 366 *
433 * @dev: device pointer 367 * @dev: device pointer
434 * @fmt: printf() like format string. 368 * @fmt: printf() like format string.
435 */ 369 */
436 #define DRM_DEV_ERROR(dev, fmt, ...) 370 #define DRM_DEV_ERROR(dev, fmt, ...) \
437 drm_dev_printk(dev, KERN_ERR, "*ERROR* 371 drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__)
438 372
439 /** 373 /**
440 * DRM_DEV_ERROR_RATELIMITED() - Rate limited 374 * DRM_DEV_ERROR_RATELIMITED() - Rate limited error output.
441 * 375 *
442 * NOTE: this is deprecated in favor of drm_er 376 * NOTE: this is deprecated in favor of drm_err_ratelimited() or
443 * dev_err_ratelimited(). 377 * dev_err_ratelimited().
444 * 378 *
445 * @dev: device pointer 379 * @dev: device pointer
446 * @fmt: printf() like format string. 380 * @fmt: printf() like format string.
447 * 381 *
448 * Like DRM_ERROR() but won't flood the log. 382 * Like DRM_ERROR() but won't flood the log.
449 */ 383 */
450 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, .. 384 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \
451 ({ 385 ({ \
452 static DEFINE_RATELIMIT_STATE(_rs, 386 static DEFINE_RATELIMIT_STATE(_rs, \
453 DEFAULT_ 387 DEFAULT_RATELIMIT_INTERVAL, \
454 DEFAULT_ 388 DEFAULT_RATELIMIT_BURST); \
455 389 \
456 if (__ratelimit(&_rs)) 390 if (__ratelimit(&_rs)) \
457 DRM_DEV_ERROR(dev, fmt, ##__VA 391 DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \
458 }) 392 })
459 393
460 /* NOTE: this is deprecated in favor of drm_in 394 /* NOTE: this is deprecated in favor of drm_info() or dev_info(). */
461 #define DRM_DEV_INFO(dev, fmt, ...) 395 #define DRM_DEV_INFO(dev, fmt, ...) \
462 drm_dev_printk(dev, KERN_INFO, fmt, ## 396 drm_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__)
463 397
464 /* NOTE: this is deprecated in favor of drm_in 398 /* NOTE: this is deprecated in favor of drm_info_once() or dev_info_once(). */
465 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) 399 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \
466 ({ 400 ({ \
467 static bool __print_once __read_mostly 401 static bool __print_once __read_mostly; \
468 if (!__print_once) { 402 if (!__print_once) { \
469 __print_once = true; 403 __print_once = true; \
470 DRM_DEV_INFO(dev, fmt, ##__VA_ 404 DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \
471 } 405 } \
472 }) 406 })
473 407
474 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) 408 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
475 #define drm_dev_dbg(dev, cat, fmt, ...) 409 #define drm_dev_dbg(dev, cat, fmt, ...) \
476 __drm_dev_dbg(NULL, dev, cat, fmt, ##_ 410 __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__)
477 #else 411 #else
478 #define drm_dev_dbg(dev, cat, fmt, ...) 412 #define drm_dev_dbg(dev, cat, fmt, ...) \
479 _dynamic_func_call_cls(cat, fmt, __drm 413 _dynamic_func_call_cls(cat, fmt, __drm_dev_dbg, \
480 dev, cat, fmt, 414 dev, cat, fmt, ##__VA_ARGS__)
481 #endif 415 #endif
482 416
483 /** 417 /**
484 * DRM_DEV_DEBUG() - Debug output for generic 418 * DRM_DEV_DEBUG() - Debug output for generic drm code
485 * 419 *
486 * NOTE: this is deprecated in favor of drm_db 420 * NOTE: this is deprecated in favor of drm_dbg_core().
487 * 421 *
488 * @dev: device pointer 422 * @dev: device pointer
489 * @fmt: printf() like format string. 423 * @fmt: printf() like format string.
490 */ 424 */
491 #define DRM_DEV_DEBUG(dev, fmt, ...) 425 #define DRM_DEV_DEBUG(dev, fmt, ...) \
492 drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##_ 426 drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##__VA_ARGS__)
493 /** 427 /**
494 * DRM_DEV_DEBUG_DRIVER() - Debug output for v 428 * DRM_DEV_DEBUG_DRIVER() - Debug output for vendor specific part of the driver
495 * 429 *
496 * NOTE: this is deprecated in favor of drm_db 430 * NOTE: this is deprecated in favor of drm_dbg() or dev_dbg().
497 * 431 *
498 * @dev: device pointer 432 * @dev: device pointer
499 * @fmt: printf() like format string. 433 * @fmt: printf() like format string.
500 */ 434 */
501 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) 435 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...) \
502 drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, # 436 drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
503 /** 437 /**
504 * DRM_DEV_DEBUG_KMS() - Debug output for mode 438 * DRM_DEV_DEBUG_KMS() - Debug output for modesetting code
505 * 439 *
506 * NOTE: this is deprecated in favor of drm_db 440 * NOTE: this is deprecated in favor of drm_dbg_kms().
507 * 441 *
508 * @dev: device pointer 442 * @dev: device pointer
509 * @fmt: printf() like format string. 443 * @fmt: printf() like format string.
510 */ 444 */
511 #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) 445 #define DRM_DEV_DEBUG_KMS(dev, fmt, ...) \
512 drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__ 446 drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
513 447
514 /* 448 /*
515 * struct drm_device based logging 449 * struct drm_device based logging
516 * 450 *
517 * Prefer drm_device based logging over device 451 * Prefer drm_device based logging over device or prink based logging.
518 */ 452 */
519 453
520 /* Helper for struct drm_device based logging. 454 /* Helper for struct drm_device based logging. */
521 #define __drm_printk(drm, level, type, fmt, .. 455 #define __drm_printk(drm, level, type, fmt, ...) \
522 dev_##level##type((drm) ? (drm)->dev : !! 456 dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
523 457
524 458
525 #define drm_info(drm, fmt, ...) 459 #define drm_info(drm, fmt, ...) \
526 __drm_printk((drm), info,, fmt, ##__VA 460 __drm_printk((drm), info,, fmt, ##__VA_ARGS__)
527 461
528 #define drm_notice(drm, fmt, ...) 462 #define drm_notice(drm, fmt, ...) \
529 __drm_printk((drm), notice,, fmt, ##__ 463 __drm_printk((drm), notice,, fmt, ##__VA_ARGS__)
530 464
531 #define drm_warn(drm, fmt, ...) 465 #define drm_warn(drm, fmt, ...) \
532 __drm_printk((drm), warn,, fmt, ##__VA 466 __drm_printk((drm), warn,, fmt, ##__VA_ARGS__)
533 467
534 #define drm_err(drm, fmt, ...) 468 #define drm_err(drm, fmt, ...) \
535 __drm_printk((drm), err,, "*ERROR* " f 469 __drm_printk((drm), err,, "*ERROR* " fmt, ##__VA_ARGS__)
536 470
537 471
538 #define drm_info_once(drm, fmt, ...) 472 #define drm_info_once(drm, fmt, ...) \
539 __drm_printk((drm), info, _once, fmt, 473 __drm_printk((drm), info, _once, fmt, ##__VA_ARGS__)
540 474
541 #define drm_notice_once(drm, fmt, ...) 475 #define drm_notice_once(drm, fmt, ...) \
542 __drm_printk((drm), notice, _once, fmt 476 __drm_printk((drm), notice, _once, fmt, ##__VA_ARGS__)
543 477
544 #define drm_warn_once(drm, fmt, ...) 478 #define drm_warn_once(drm, fmt, ...) \
545 __drm_printk((drm), warn, _once, fmt, 479 __drm_printk((drm), warn, _once, fmt, ##__VA_ARGS__)
546 480
547 #define drm_err_once(drm, fmt, ...) 481 #define drm_err_once(drm, fmt, ...) \
548 __drm_printk((drm), err, _once, "*ERRO 482 __drm_printk((drm), err, _once, "*ERROR* " fmt, ##__VA_ARGS__)
549 483
550 484
551 #define drm_err_ratelimited(drm, fmt, ...) 485 #define drm_err_ratelimited(drm, fmt, ...) \
552 __drm_printk((drm), err, _ratelimited, 486 __drm_printk((drm), err, _ratelimited, "*ERROR* " fmt, ##__VA_ARGS__)
553 487
554 488
555 #define drm_dbg_core(drm, fmt, ...) 489 #define drm_dbg_core(drm, fmt, ...) \
556 drm_dev_dbg((drm) ? (drm)->dev : NULL, 490 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__)
557 #define drm_dbg_driver(drm, fmt, ...) 491 #define drm_dbg_driver(drm, fmt, ...) \
558 drm_dev_dbg((drm) ? (drm)->dev : NULL, 492 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
559 #define drm_dbg_kms(drm, fmt, ...) 493 #define drm_dbg_kms(drm, fmt, ...) \
560 drm_dev_dbg((drm) ? (drm)->dev : NULL, 494 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__)
561 #define drm_dbg_prime(drm, fmt, ...) 495 #define drm_dbg_prime(drm, fmt, ...) \
562 drm_dev_dbg((drm) ? (drm)->dev : NULL, 496 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
563 #define drm_dbg_atomic(drm, fmt, ...) 497 #define drm_dbg_atomic(drm, fmt, ...) \
564 drm_dev_dbg((drm) ? (drm)->dev : NULL, 498 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
565 #define drm_dbg_vbl(drm, fmt, ...) 499 #define drm_dbg_vbl(drm, fmt, ...) \
566 drm_dev_dbg((drm) ? (drm)->dev : NULL, 500 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__)
567 #define drm_dbg_state(drm, fmt, ...) 501 #define drm_dbg_state(drm, fmt, ...) \
568 drm_dev_dbg((drm) ? (drm)->dev : NULL, 502 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__)
569 #define drm_dbg_lease(drm, fmt, ...) 503 #define drm_dbg_lease(drm, fmt, ...) \
570 drm_dev_dbg((drm) ? (drm)->dev : NULL, 504 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__)
571 #define drm_dbg_dp(drm, fmt, ...) 505 #define drm_dbg_dp(drm, fmt, ...) \
572 drm_dev_dbg((drm) ? (drm)->dev : NULL, 506 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__)
573 #define drm_dbg_drmres(drm, fmt, ...) 507 #define drm_dbg_drmres(drm, fmt, ...) \
574 drm_dev_dbg((drm) ? (drm)->dev : NULL, 508 drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__)
575 509
576 #define drm_dbg(drm, fmt, ...) drm_dbg_driver 510 #define drm_dbg(drm, fmt, ...) drm_dbg_driver(drm, fmt, ##__VA_ARGS__)
577 511
578 /* 512 /*
579 * printk based logging 513 * printk based logging
580 * 514 *
581 * Prefer drm_device based logging over device 515 * Prefer drm_device based logging over device or prink based logging.
582 */ 516 */
583 517
>> 518 __printf(3, 4)
>> 519 void ___drm_dbg(struct _ddebug *desc, enum drm_debug_category category, const char *format, ...);
584 __printf(1, 2) 520 __printf(1, 2)
585 void __drm_err(const char *format, ...); 521 void __drm_err(const char *format, ...);
586 522
587 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) 523 #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
588 #define __drm_dbg(cat, fmt, ...) __drm_ !! 524 #define __drm_dbg(cat, fmt, ...) ___drm_dbg(NULL, cat, fmt, ##__VA_ARGS__)
589 #else 525 #else
590 #define __drm_dbg(cat, fmt, ...) 526 #define __drm_dbg(cat, fmt, ...) \
591 _dynamic_func_call_cls(cat, fmt, __drm !! 527 _dynamic_func_call_cls(cat, fmt, ___drm_dbg, \
592 NULL, cat, fmt, !! 528 cat, fmt, ##__VA_ARGS__)
593 #endif 529 #endif
594 530
595 /* Macros to make printk easier */ 531 /* Macros to make printk easier */
596 532
597 #define _DRM_PRINTK(once, level, fmt, ...) 533 #define _DRM_PRINTK(once, level, fmt, ...) \
598 printk##once(KERN_##level "[" DRM_NAME 534 printk##once(KERN_##level "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
599 535
600 /* NOTE: this is deprecated in favor of pr_inf 536 /* NOTE: this is deprecated in favor of pr_info(). */
601 #define DRM_INFO(fmt, ...) 537 #define DRM_INFO(fmt, ...) \
602 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__ 538 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
603 /* NOTE: this is deprecated in favor of pr_not 539 /* NOTE: this is deprecated in favor of pr_notice(). */
604 #define DRM_NOTE(fmt, ...) 540 #define DRM_NOTE(fmt, ...) \
605 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS 541 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
606 /* NOTE: this is deprecated in favor of pr_war 542 /* NOTE: this is deprecated in favor of pr_warn(). */
607 #define DRM_WARN(fmt, ...) 543 #define DRM_WARN(fmt, ...) \
608 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARG 544 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
609 545
610 /* NOTE: this is deprecated in favor of pr_inf 546 /* NOTE: this is deprecated in favor of pr_info_once(). */
611 #define DRM_INFO_ONCE(fmt, ...) 547 #define DRM_INFO_ONCE(fmt, ...) \
612 _DRM_PRINTK(_once, INFO, fmt, ##__VA_A 548 _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
613 /* NOTE: this is deprecated in favor of pr_not 549 /* NOTE: this is deprecated in favor of pr_notice_once(). */
614 #define DRM_NOTE_ONCE(fmt, ...) 550 #define DRM_NOTE_ONCE(fmt, ...) \
615 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA 551 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
616 /* NOTE: this is deprecated in favor of pr_war 552 /* NOTE: this is deprecated in favor of pr_warn_once(). */
617 #define DRM_WARN_ONCE(fmt, ...) 553 #define DRM_WARN_ONCE(fmt, ...) \
618 _DRM_PRINTK(_once, WARNING, fmt, ##__V 554 _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
619 555
620 /* NOTE: this is deprecated in favor of pr_err 556 /* NOTE: this is deprecated in favor of pr_err(). */
621 #define DRM_ERROR(fmt, ...) 557 #define DRM_ERROR(fmt, ...) \
622 __drm_err(fmt, ##__VA_ARGS__) 558 __drm_err(fmt, ##__VA_ARGS__)
623 559
624 /* NOTE: this is deprecated in favor of pr_err 560 /* NOTE: this is deprecated in favor of pr_err_ratelimited(). */
625 #define DRM_ERROR_RATELIMITED(fmt, ...) 561 #define DRM_ERROR_RATELIMITED(fmt, ...) \
626 DRM_DEV_ERROR_RATELIMITED(NULL, fmt, # 562 DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
627 563
628 /* NOTE: this is deprecated in favor of drm_db 564 /* NOTE: this is deprecated in favor of drm_dbg_core(NULL, ...). */
629 #define DRM_DEBUG(fmt, ...) 565 #define DRM_DEBUG(fmt, ...) \
630 __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARG 566 __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARGS__)
631 567
632 /* NOTE: this is deprecated in favor of drm_db 568 /* NOTE: this is deprecated in favor of drm_dbg(NULL, ...). */
633 #define DRM_DEBUG_DRIVER(fmt, ...) 569 #define DRM_DEBUG_DRIVER(fmt, ...) \
634 __drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_A 570 __drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
635 571
636 /* NOTE: this is deprecated in favor of drm_db 572 /* NOTE: this is deprecated in favor of drm_dbg_kms(NULL, ...). */
637 #define DRM_DEBUG_KMS(fmt, ...) 573 #define DRM_DEBUG_KMS(fmt, ...) \
638 __drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS 574 __drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS__)
639 575
640 /* NOTE: this is deprecated in favor of drm_db 576 /* NOTE: this is deprecated in favor of drm_dbg_prime(NULL, ...). */
641 #define DRM_DEBUG_PRIME(fmt, ...) 577 #define DRM_DEBUG_PRIME(fmt, ...) \
642 __drm_dbg(DRM_UT_PRIME, fmt, ##__VA_AR 578 __drm_dbg(DRM_UT_PRIME, fmt, ##__VA_ARGS__)
643 579
644 /* NOTE: this is deprecated in favor of drm_db 580 /* NOTE: this is deprecated in favor of drm_dbg_atomic(NULL, ...). */
645 #define DRM_DEBUG_ATOMIC(fmt, ...) 581 #define DRM_DEBUG_ATOMIC(fmt, ...) \
646 __drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_A 582 __drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
647 583
648 /* NOTE: this is deprecated in favor of drm_db 584 /* NOTE: this is deprecated in favor of drm_dbg_vbl(NULL, ...). */
649 #define DRM_DEBUG_VBL(fmt, ...) 585 #define DRM_DEBUG_VBL(fmt, ...) \
650 __drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS 586 __drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS__)
651 587
652 /* NOTE: this is deprecated in favor of drm_db 588 /* NOTE: this is deprecated in favor of drm_dbg_lease(NULL, ...). */
653 #define DRM_DEBUG_LEASE(fmt, ...) 589 #define DRM_DEBUG_LEASE(fmt, ...) \
654 __drm_dbg(DRM_UT_LEASE, fmt, ##__VA_AR 590 __drm_dbg(DRM_UT_LEASE, fmt, ##__VA_ARGS__)
655 591
656 /* NOTE: this is deprecated in favor of drm_db 592 /* NOTE: this is deprecated in favor of drm_dbg_dp(NULL, ...). */
657 #define DRM_DEBUG_DP(fmt, ...) 593 #define DRM_DEBUG_DP(fmt, ...) \
658 __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS 594 __drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS__)
659 595
660 #define __DRM_DEFINE_DBG_RATELIMITED(category, 596 #define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...) \
661 ({ 597 ({ \
662 static DEFINE_RATELIMIT_STATE(rs_, DEF 598 static DEFINE_RATELIMIT_STATE(rs_, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);\
663 const struct drm_device *drm_ = (drm); 599 const struct drm_device *drm_ = (drm); \
664 600 \
665 if (drm_debug_enabled(DRM_UT_ ## categ 601 if (drm_debug_enabled(DRM_UT_ ## category) && __ratelimit(&rs_)) \
666 drm_dev_printk(drm_ ? drm_->de 602 drm_dev_printk(drm_ ? drm_->dev : NULL, KERN_DEBUG, fmt, ## __VA_ARGS__); \
667 }) 603 })
668 604
669 #define drm_dbg_ratelimited(drm, fmt, ...) \ <<
670 __DRM_DEFINE_DBG_RATELIMITED(DRIVER, d <<
671 <<
672 #define drm_dbg_kms_ratelimited(drm, fmt, ...) 605 #define drm_dbg_kms_ratelimited(drm, fmt, ...) \
673 __DRM_DEFINE_DBG_RATELIMITED(KMS, drm, 606 __DRM_DEFINE_DBG_RATELIMITED(KMS, drm, fmt, ## __VA_ARGS__)
674 607
675 /* 608 /*
676 * struct drm_device based WARNs 609 * struct drm_device based WARNs
677 * 610 *
678 * drm_WARN*() acts like WARN*(), but with the 611 * drm_WARN*() acts like WARN*(), but with the key difference of
679 * using device specific information so that w 612 * using device specific information so that we know from which device
680 * warning is originating from. 613 * warning is originating from.
681 * 614 *
682 * Prefer drm_device based drm_WARN* over regu 615 * Prefer drm_device based drm_WARN* over regular WARN*
683 */ 616 */
684 617
685 /* Helper for struct drm_device based WARNs */ 618 /* Helper for struct drm_device based WARNs */
686 #define drm_WARN(drm, condition, format, arg.. 619 #define drm_WARN(drm, condition, format, arg...) \
687 WARN(condition, "%s %s: [drm] " format !! 620 WARN(condition, "%s %s: " format, \
688 dev_driver_string((drm 621 dev_driver_string((drm)->dev), \
689 dev_name((drm)->dev), 622 dev_name((drm)->dev), ## arg)
690 623
691 #define drm_WARN_ONCE(drm, condition, format, 624 #define drm_WARN_ONCE(drm, condition, format, arg...) \
692 WARN_ONCE(condition, "%s %s: [drm] " f !! 625 WARN_ONCE(condition, "%s %s: " format, \
693 dev_driver_string((drm 626 dev_driver_string((drm)->dev), \
694 dev_name((drm)->dev), 627 dev_name((drm)->dev), ## arg)
695 628
696 #define drm_WARN_ON(drm, x) 629 #define drm_WARN_ON(drm, x) \
697 drm_WARN((drm), (x), "%s", 630 drm_WARN((drm), (x), "%s", \
698 "drm_WARN_ON(" __stringify(x) 631 "drm_WARN_ON(" __stringify(x) ")")
699 632
700 #define drm_WARN_ON_ONCE(drm, x) 633 #define drm_WARN_ON_ONCE(drm, x) \
701 drm_WARN_ONCE((drm), (x), "%s", 634 drm_WARN_ONCE((drm), (x), "%s", \
702 "drm_WARN_ON_ONCE(" __st 635 "drm_WARN_ON_ONCE(" __stringify(x) ")")
703 636
704 #endif /* DRM_PRINT_H_ */ 637 #endif /* DRM_PRINT_H_ */
705 638
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