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1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
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  * on the rights to use, copy, modify, merge, publish, distribute, sub
8  * license, and/or sell copies of the Software, and to permit persons to whom
9  * the Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Authors:
24  *      Marek Olšák <maraeo@gmail.com>
25  */
26 
27 #include "si_pipe.h"
28 #include "sid.h"
29 #include "sid_tables.h"
30 #include "radeon/radeon_elf_util.h"
31 #include "ddebug/dd_util.h"
32 #include "util/u_memory.h"
33 #include "ac_debug.h"
34 
35 DEBUG_GET_ONCE_OPTION(replace_shaders, "RADEON_REPLACE_SHADERS", NULL)
36 
si_dump_shader(struct si_screen * sscreen,struct si_shader_ctx_state * state,FILE * f)37 static void si_dump_shader(struct si_screen *sscreen,
38 			   struct si_shader_ctx_state *state, FILE *f)
39 {
40 	struct si_shader *current = state->current;
41 
42 	if (!state->cso || !current)
43 		return;
44 
45 	if (current->shader_log)
46 		fwrite(current->shader_log, current->shader_log_size, 1, f);
47 	else
48 		si_shader_dump(sscreen, state->current, NULL,
49 			       state->cso->info.processor, f, false);
50 }
51 
52 /**
53  * Shader compiles can be overridden with arbitrary ELF objects by setting
54  * the environment variable RADEON_REPLACE_SHADERS=num1:filename1[;num2:filename2]
55  */
si_replace_shader(unsigned num,struct radeon_shader_binary * binary)56 bool si_replace_shader(unsigned num, struct radeon_shader_binary *binary)
57 {
58 	const char *p = debug_get_option_replace_shaders();
59 	const char *semicolon;
60 	char *copy = NULL;
61 	FILE *f;
62 	long filesize, nread;
63 	char *buf = NULL;
64 	bool replaced = false;
65 
66 	if (!p)
67 		return false;
68 
69 	while (*p) {
70 		unsigned long i;
71 		char *endp;
72 		i = strtoul(p, &endp, 0);
73 
74 		p = endp;
75 		if (*p != ':') {
76 			fprintf(stderr, "RADEON_REPLACE_SHADERS formatted badly.\n");
77 			exit(1);
78 		}
79 		++p;
80 
81 		if (i == num)
82 			break;
83 
84 		p = strchr(p, ';');
85 		if (!p)
86 			return false;
87 		++p;
88 	}
89 	if (!*p)
90 		return false;
91 
92 	semicolon = strchr(p, ';');
93 	if (semicolon) {
94 		p = copy = strndup(p, semicolon - p);
95 		if (!copy) {
96 			fprintf(stderr, "out of memory\n");
97 			return false;
98 		}
99 	}
100 
101 	fprintf(stderr, "radeonsi: replace shader %u by %s\n", num, p);
102 
103 	f = fopen(p, "r");
104 	if (!f) {
105 		perror("radeonsi: failed to open file");
106 		goto out_free;
107 	}
108 
109 	if (fseek(f, 0, SEEK_END) != 0)
110 		goto file_error;
111 
112 	filesize = ftell(f);
113 	if (filesize < 0)
114 		goto file_error;
115 
116 	if (fseek(f, 0, SEEK_SET) != 0)
117 		goto file_error;
118 
119 	buf = MALLOC(filesize);
120 	if (!buf) {
121 		fprintf(stderr, "out of memory\n");
122 		goto out_close;
123 	}
124 
125 	nread = fread(buf, 1, filesize, f);
126 	if (nread != filesize)
127 		goto file_error;
128 
129 	radeon_elf_read(buf, filesize, binary);
130 	replaced = true;
131 
132 out_close:
133 	fclose(f);
134 out_free:
135 	FREE(buf);
136 	free(copy);
137 	return replaced;
138 
139 file_error:
140 	perror("radeonsi: reading shader");
141 	goto out_close;
142 }
143 
144 /* Parsed IBs are difficult to read without colors. Use "less -R file" to
145  * read them, or use "aha -b -f file" to convert them to html.
146  */
147 #define COLOR_RESET	"\033[0m"
148 #define COLOR_RED	"\033[31m"
149 #define COLOR_GREEN	"\033[1;32m"
150 #define COLOR_YELLOW	"\033[1;33m"
151 #define COLOR_CYAN	"\033[1;36m"
152 
si_dump_mmapped_reg(struct si_context * sctx,FILE * f,unsigned offset)153 static void si_dump_mmapped_reg(struct si_context *sctx, FILE *f,
154 				unsigned offset)
155 {
156 	struct radeon_winsys *ws = sctx->b.ws;
157 	uint32_t value;
158 
159 	if (ws->read_registers(ws, offset, 1, &value))
160 		ac_dump_reg(f, offset, value, ~0);
161 }
162 
si_dump_debug_registers(struct si_context * sctx,FILE * f)163 static void si_dump_debug_registers(struct si_context *sctx, FILE *f)
164 {
165 	if (sctx->screen->b.info.drm_major == 2 &&
166 	    sctx->screen->b.info.drm_minor < 42)
167 		return; /* no radeon support */
168 
169 	fprintf(f, "Memory-mapped registers:\n");
170 	si_dump_mmapped_reg(sctx, f, R_008010_GRBM_STATUS);
171 
172 	/* No other registers can be read on DRM < 3.1.0. */
173 	if (sctx->screen->b.info.drm_major < 3 ||
174 	    sctx->screen->b.info.drm_minor < 1) {
175 		fprintf(f, "\n");
176 		return;
177 	}
178 
179 	si_dump_mmapped_reg(sctx, f, R_008008_GRBM_STATUS2);
180 	si_dump_mmapped_reg(sctx, f, R_008014_GRBM_STATUS_SE0);
181 	si_dump_mmapped_reg(sctx, f, R_008018_GRBM_STATUS_SE1);
182 	si_dump_mmapped_reg(sctx, f, R_008038_GRBM_STATUS_SE2);
183 	si_dump_mmapped_reg(sctx, f, R_00803C_GRBM_STATUS_SE3);
184 	si_dump_mmapped_reg(sctx, f, R_00D034_SDMA0_STATUS_REG);
185 	si_dump_mmapped_reg(sctx, f, R_00D834_SDMA1_STATUS_REG);
186 	si_dump_mmapped_reg(sctx, f, R_000E50_SRBM_STATUS);
187 	si_dump_mmapped_reg(sctx, f, R_000E4C_SRBM_STATUS2);
188 	si_dump_mmapped_reg(sctx, f, R_000E54_SRBM_STATUS3);
189 	si_dump_mmapped_reg(sctx, f, R_008680_CP_STAT);
190 	si_dump_mmapped_reg(sctx, f, R_008674_CP_STALLED_STAT1);
191 	si_dump_mmapped_reg(sctx, f, R_008678_CP_STALLED_STAT2);
192 	si_dump_mmapped_reg(sctx, f, R_008670_CP_STALLED_STAT3);
193 	si_dump_mmapped_reg(sctx, f, R_008210_CP_CPC_STATUS);
194 	si_dump_mmapped_reg(sctx, f, R_008214_CP_CPC_BUSY_STAT);
195 	si_dump_mmapped_reg(sctx, f, R_008218_CP_CPC_STALLED_STAT1);
196 	si_dump_mmapped_reg(sctx, f, R_00821C_CP_CPF_STATUS);
197 	si_dump_mmapped_reg(sctx, f, R_008220_CP_CPF_BUSY_STAT);
198 	si_dump_mmapped_reg(sctx, f, R_008224_CP_CPF_STALLED_STAT1);
199 	fprintf(f, "\n");
200 }
201 
si_dump_last_ib(struct si_context * sctx,FILE * f)202 static void si_dump_last_ib(struct si_context *sctx, FILE *f)
203 {
204 	int last_trace_id = -1;
205 
206 	if (!sctx->last_gfx.ib)
207 		return;
208 
209 	if (sctx->last_trace_buf) {
210 		/* We are expecting that the ddebug pipe has already
211 		 * waited for the context, so this buffer should be idle.
212 		 * If the GPU is hung, there is no point in waiting for it.
213 		 */
214 		uint32_t *map = sctx->b.ws->buffer_map(sctx->last_trace_buf->buf,
215 						       NULL,
216 						       PIPE_TRANSFER_UNSYNCHRONIZED |
217 						       PIPE_TRANSFER_READ);
218 		if (map)
219 			last_trace_id = *map;
220 	}
221 
222 	if (sctx->init_config)
223 		ac_parse_ib(f, sctx->init_config->pm4, sctx->init_config->ndw,
224 			    -1, "IB2: Init config", sctx->b.chip_class,
225 			    NULL, NULL);
226 
227 	if (sctx->init_config_gs_rings)
228 		ac_parse_ib(f, sctx->init_config_gs_rings->pm4,
229 			    sctx->init_config_gs_rings->ndw,
230 			    -1, "IB2: Init GS rings", sctx->b.chip_class,
231 			    NULL, NULL);
232 
233 	ac_parse_ib(f, sctx->last_gfx.ib, sctx->last_gfx.num_dw,
234 		    last_trace_id, "IB", sctx->b.chip_class,
235 		     NULL, NULL);
236 }
237 
priority_to_string(enum radeon_bo_priority priority)238 static const char *priority_to_string(enum radeon_bo_priority priority)
239 {
240 #define ITEM(x) [RADEON_PRIO_##x] = #x
241 	static const char *table[64] = {
242 		ITEM(FENCE),
243 	        ITEM(TRACE),
244 	        ITEM(SO_FILLED_SIZE),
245 	        ITEM(QUERY),
246 	        ITEM(IB1),
247 	        ITEM(IB2),
248 	        ITEM(DRAW_INDIRECT),
249 	        ITEM(INDEX_BUFFER),
250 	        ITEM(VCE),
251 	        ITEM(UVD),
252 	        ITEM(SDMA_BUFFER),
253 	        ITEM(SDMA_TEXTURE),
254 		ITEM(CP_DMA),
255 	        ITEM(CONST_BUFFER),
256 	        ITEM(DESCRIPTORS),
257 	        ITEM(BORDER_COLORS),
258 	        ITEM(SAMPLER_BUFFER),
259 	        ITEM(VERTEX_BUFFER),
260 	        ITEM(SHADER_RW_BUFFER),
261 	        ITEM(COMPUTE_GLOBAL),
262 	        ITEM(SAMPLER_TEXTURE),
263 	        ITEM(SHADER_RW_IMAGE),
264 	        ITEM(SAMPLER_TEXTURE_MSAA),
265 	        ITEM(COLOR_BUFFER),
266 	        ITEM(DEPTH_BUFFER),
267 	        ITEM(COLOR_BUFFER_MSAA),
268 	        ITEM(DEPTH_BUFFER_MSAA),
269 	        ITEM(CMASK),
270 	        ITEM(DCC),
271 	        ITEM(HTILE),
272 		ITEM(SHADER_BINARY),
273 		ITEM(SHADER_RINGS),
274 		ITEM(SCRATCH_BUFFER),
275 	};
276 #undef ITEM
277 
278 	assert(priority < ARRAY_SIZE(table));
279 	return table[priority];
280 }
281 
bo_list_compare_va(const struct radeon_bo_list_item * a,const struct radeon_bo_list_item * b)282 static int bo_list_compare_va(const struct radeon_bo_list_item *a,
283 				   const struct radeon_bo_list_item *b)
284 {
285 	return a->vm_address < b->vm_address ? -1 :
286 	       a->vm_address > b->vm_address ? 1 : 0;
287 }
288 
si_dump_bo_list(struct si_context * sctx,const struct radeon_saved_cs * saved,FILE * f)289 static void si_dump_bo_list(struct si_context *sctx,
290 			    const struct radeon_saved_cs *saved, FILE *f)
291 {
292 	unsigned i,j;
293 
294 	if (!saved->bo_list)
295 		return;
296 
297 	/* Sort the list according to VM adddresses first. */
298 	qsort(saved->bo_list, saved->bo_count,
299 	      sizeof(saved->bo_list[0]), (void*)bo_list_compare_va);
300 
301 	fprintf(f, "Buffer list (in units of pages = 4kB):\n"
302 		COLOR_YELLOW "        Size    VM start page         "
303 		"VM end page           Usage" COLOR_RESET "\n");
304 
305 	for (i = 0; i < saved->bo_count; i++) {
306 		/* Note: Buffer sizes are expected to be aligned to 4k by the winsys. */
307 		const unsigned page_size = sctx->b.screen->info.gart_page_size;
308 		uint64_t va = saved->bo_list[i].vm_address;
309 		uint64_t size = saved->bo_list[i].bo_size;
310 		bool hit = false;
311 
312 		/* If there's unused virtual memory between 2 buffers, print it. */
313 		if (i) {
314 			uint64_t previous_va_end = saved->bo_list[i-1].vm_address +
315 						   saved->bo_list[i-1].bo_size;
316 
317 			if (va > previous_va_end) {
318 				fprintf(f, "  %10"PRIu64"    -- hole --\n",
319 					(va - previous_va_end) / page_size);
320 			}
321 		}
322 
323 		/* Print the buffer. */
324 		fprintf(f, "  %10"PRIu64"    0x%013"PRIX64"       0x%013"PRIX64"       ",
325 			size / page_size, va / page_size, (va + size) / page_size);
326 
327 		/* Print the usage. */
328 		for (j = 0; j < 64; j++) {
329 			if (!(saved->bo_list[i].priority_usage & (1llu << j)))
330 				continue;
331 
332 			fprintf(f, "%s%s", !hit ? "" : ", ", priority_to_string(j));
333 			hit = true;
334 		}
335 		fprintf(f, "\n");
336 	}
337 	fprintf(f, "\nNote: The holes represent memory not used by the IB.\n"
338 		   "      Other buffers can still be allocated there.\n\n");
339 }
340 
si_dump_framebuffer(struct si_context * sctx,FILE * f)341 static void si_dump_framebuffer(struct si_context *sctx, FILE *f)
342 {
343 	struct pipe_framebuffer_state *state = &sctx->framebuffer.state;
344 	struct r600_texture *rtex;
345 	int i;
346 
347 	for (i = 0; i < state->nr_cbufs; i++) {
348 		if (!state->cbufs[i])
349 			continue;
350 
351 		rtex = (struct r600_texture*)state->cbufs[i]->texture;
352 		fprintf(f, COLOR_YELLOW "Color buffer %i:" COLOR_RESET "\n", i);
353 		r600_print_texture_info(rtex, f);
354 		fprintf(f, "\n");
355 	}
356 
357 	if (state->zsbuf) {
358 		rtex = (struct r600_texture*)state->zsbuf->texture;
359 		fprintf(f, COLOR_YELLOW "Depth-stencil buffer:" COLOR_RESET "\n");
360 		r600_print_texture_info(rtex, f);
361 		fprintf(f, "\n");
362 	}
363 }
364 
si_dump_descriptor_list(struct si_descriptors * desc,const char * shader_name,const char * elem_name,unsigned num_elements,FILE * f)365 static void si_dump_descriptor_list(struct si_descriptors *desc,
366 				    const char *shader_name,
367 				    const char *elem_name,
368 				    unsigned num_elements,
369 				    FILE *f)
370 {
371 	unsigned i, j;
372 	uint32_t *cpu_list = desc->list;
373 	uint32_t *gpu_list = desc->gpu_list;
374 	const char *list_note = "GPU list";
375 
376 	if (!gpu_list) {
377 		gpu_list = cpu_list;
378 		list_note = "CPU list";
379 	}
380 
381 	for (i = 0; i < num_elements; i++) {
382 		fprintf(f, COLOR_GREEN "%s%s slot %u (%s):" COLOR_RESET "\n",
383 			shader_name, elem_name, i, list_note);
384 
385 		switch (desc->element_dw_size) {
386 		case 4:
387 			for (j = 0; j < 4; j++)
388 				ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
389 					    gpu_list[j], 0xffffffff);
390 			break;
391 		case 8:
392 			for (j = 0; j < 8; j++)
393 				ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
394 					    gpu_list[j], 0xffffffff);
395 
396 			fprintf(f, COLOR_CYAN "    Buffer:" COLOR_RESET "\n");
397 			for (j = 0; j < 4; j++)
398 				ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
399 					    gpu_list[4+j], 0xffffffff);
400 			break;
401 		case 16:
402 			for (j = 0; j < 8; j++)
403 				ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
404 					    gpu_list[j], 0xffffffff);
405 
406 			fprintf(f, COLOR_CYAN "    Buffer:" COLOR_RESET "\n");
407 			for (j = 0; j < 4; j++)
408 				ac_dump_reg(f, R_008F00_SQ_BUF_RSRC_WORD0 + j*4,
409 					    gpu_list[4+j], 0xffffffff);
410 
411 			fprintf(f, COLOR_CYAN "    FMASK:" COLOR_RESET "\n");
412 			for (j = 0; j < 8; j++)
413 				ac_dump_reg(f, R_008F10_SQ_IMG_RSRC_WORD0 + j*4,
414 					    gpu_list[8+j], 0xffffffff);
415 
416 			fprintf(f, COLOR_CYAN "    Sampler state:" COLOR_RESET "\n");
417 			for (j = 0; j < 4; j++)
418 				ac_dump_reg(f, R_008F30_SQ_IMG_SAMP_WORD0 + j*4,
419 					    gpu_list[12+j], 0xffffffff);
420 			break;
421 		}
422 
423 		if (memcmp(gpu_list, cpu_list, desc->element_dw_size * 4) != 0) {
424 			fprintf(f, COLOR_RED "!!!!! This slot was corrupted in GPU memory !!!!!"
425 				COLOR_RESET "\n");
426 		}
427 
428 		fprintf(f, "\n");
429 		gpu_list += desc->element_dw_size;
430 		cpu_list += desc->element_dw_size;
431 	}
432 }
433 
si_dump_descriptors(struct si_context * sctx,struct si_shader_ctx_state * state,FILE * f)434 static void si_dump_descriptors(struct si_context *sctx,
435 				struct si_shader_ctx_state *state,
436 				FILE *f)
437 {
438 	if (!state->cso || !state->current)
439 		return;
440 
441 	unsigned type = state->cso->type;
442 	const struct tgsi_shader_info *info = &state->cso->info;
443 	struct si_descriptors *descs =
444 		&sctx->descriptors[SI_DESCS_FIRST_SHADER +
445 				   type * SI_NUM_SHADER_DESCS];
446 	static const char *shader_name[] = {"VS", "PS", "GS", "TCS", "TES", "CS"};
447 
448 	static const char *elem_name[] = {
449 		" - Constant buffer",
450 		" - Shader buffer",
451 		" - Sampler",
452 		" - Image",
453 	};
454 	unsigned num_elements[] = {
455 		util_last_bit(info->const_buffers_declared),
456 		util_last_bit(info->shader_buffers_declared),
457 		util_last_bit(info->samplers_declared),
458 		util_last_bit(info->images_declared),
459 	};
460 
461 	if (type == PIPE_SHADER_VERTEX) {
462 		si_dump_descriptor_list(&sctx->vertex_buffers, shader_name[type],
463 					" - Vertex buffer", info->num_inputs, f);
464 	}
465 
466 	for (unsigned i = 0; i < SI_NUM_SHADER_DESCS; ++i, ++descs)
467 		si_dump_descriptor_list(descs, shader_name[type], elem_name[i],
468 					num_elements[i], f);
469 }
470 
si_dump_debug_state(struct pipe_context * ctx,FILE * f,unsigned flags)471 static void si_dump_debug_state(struct pipe_context *ctx, FILE *f,
472 				unsigned flags)
473 {
474 	struct si_context *sctx = (struct si_context*)ctx;
475 
476 	if (flags & PIPE_DUMP_DEVICE_STATUS_REGISTERS)
477 		si_dump_debug_registers(sctx, f);
478 
479 	if (flags & PIPE_DUMP_CURRENT_STATES)
480 		si_dump_framebuffer(sctx, f);
481 
482 	if (flags & PIPE_DUMP_CURRENT_SHADERS) {
483 		si_dump_shader(sctx->screen, &sctx->vs_shader, f);
484 		si_dump_shader(sctx->screen, &sctx->tcs_shader, f);
485 		si_dump_shader(sctx->screen, &sctx->tes_shader, f);
486 		si_dump_shader(sctx->screen, &sctx->gs_shader, f);
487 		si_dump_shader(sctx->screen, &sctx->ps_shader, f);
488 
489 		si_dump_descriptor_list(&sctx->descriptors[SI_DESCS_RW_BUFFERS],
490 					"", "RW buffers", SI_NUM_RW_BUFFERS, f);
491 		si_dump_descriptors(sctx, &sctx->vs_shader, f);
492 		si_dump_descriptors(sctx, &sctx->tcs_shader, f);
493 		si_dump_descriptors(sctx, &sctx->tes_shader, f);
494 		si_dump_descriptors(sctx, &sctx->gs_shader, f);
495 		si_dump_descriptors(sctx, &sctx->ps_shader, f);
496 	}
497 
498 	if (flags & PIPE_DUMP_LAST_COMMAND_BUFFER) {
499 		si_dump_bo_list(sctx, &sctx->last_gfx, f);
500 		si_dump_last_ib(sctx, f);
501 
502 		fprintf(f, "Done.\n");
503 
504 		/* dump only once */
505 		radeon_clear_saved_cs(&sctx->last_gfx);
506 		r600_resource_reference(&sctx->last_trace_buf, NULL);
507 	}
508 }
509 
si_dump_dma(struct si_context * sctx,struct radeon_saved_cs * saved,FILE * f)510 static void si_dump_dma(struct si_context *sctx,
511 			struct radeon_saved_cs *saved, FILE *f)
512 {
513 	static const char ib_name[] = "sDMA IB";
514 	unsigned i;
515 
516 	si_dump_bo_list(sctx, saved, f);
517 
518 	fprintf(f, "------------------ %s begin ------------------\n", ib_name);
519 
520 	for (i = 0; i < saved->num_dw; ++i) {
521 		fprintf(f, " %08x\n", saved->ib[i]);
522 	}
523 
524 	fprintf(f, "------------------- %s end -------------------\n", ib_name);
525 	fprintf(f, "\n");
526 
527 	fprintf(f, "SDMA Dump Done.\n");
528 }
529 
si_vm_fault_occured(struct si_context * sctx,uint32_t * out_addr)530 static bool si_vm_fault_occured(struct si_context *sctx, uint32_t *out_addr)
531 {
532 	char line[2000];
533 	unsigned sec, usec;
534 	int progress = 0;
535 	uint64_t timestamp = 0;
536 	bool fault = false;
537 
538 	FILE *p = popen("dmesg", "r");
539 	if (!p)
540 		return false;
541 
542 	while (fgets(line, sizeof(line), p)) {
543 		char *msg, len;
544 
545 		if (!line[0] || line[0] == '\n')
546 			continue;
547 
548 		/* Get the timestamp. */
549 		if (sscanf(line, "[%u.%u]", &sec, &usec) != 2) {
550 			static bool hit = false;
551 			if (!hit) {
552 				fprintf(stderr, "%s: failed to parse line '%s'\n",
553 					__func__, line);
554 				hit = true;
555 			}
556 			continue;
557 		}
558 		timestamp = sec * 1000000llu + usec;
559 
560 		/* If just updating the timestamp. */
561 		if (!out_addr)
562 			continue;
563 
564 		/* Process messages only if the timestamp is newer. */
565 		if (timestamp <= sctx->dmesg_timestamp)
566 			continue;
567 
568 		/* Only process the first VM fault. */
569 		if (fault)
570 			continue;
571 
572 		/* Remove trailing \n */
573 		len = strlen(line);
574 		if (len && line[len-1] == '\n')
575 			line[len-1] = 0;
576 
577 		/* Get the message part. */
578 		msg = strchr(line, ']');
579 		if (!msg) {
580 			assert(0);
581 			continue;
582 		}
583 		msg++;
584 
585 		switch (progress) {
586 		case 0:
587 			if (strstr(msg, "GPU fault detected:"))
588 				progress = 1;
589 			break;
590 		case 1:
591 			msg = strstr(msg, "VM_CONTEXT1_PROTECTION_FAULT_ADDR");
592 			if (msg) {
593 				msg = strstr(msg, "0x");
594 				if (msg) {
595 					msg += 2;
596 					if (sscanf(msg, "%X", out_addr) == 1)
597 						fault = true;
598 				}
599 			}
600 			progress = 0;
601 			break;
602 		default:
603 			progress = 0;
604 		}
605 	}
606 	pclose(p);
607 
608 	if (timestamp > sctx->dmesg_timestamp)
609 		sctx->dmesg_timestamp = timestamp;
610 	return fault;
611 }
612 
si_check_vm_faults(struct r600_common_context * ctx,struct radeon_saved_cs * saved,enum ring_type ring)613 void si_check_vm_faults(struct r600_common_context *ctx,
614 			struct radeon_saved_cs *saved, enum ring_type ring)
615 {
616 	struct si_context *sctx = (struct si_context *)ctx;
617 	struct pipe_screen *screen = sctx->b.b.screen;
618 	FILE *f;
619 	uint32_t addr;
620 	char cmd_line[4096];
621 
622 	if (!si_vm_fault_occured(sctx, &addr))
623 		return;
624 
625 	f = dd_get_debug_file(false);
626 	if (!f)
627 		return;
628 
629 	fprintf(f, "VM fault report.\n\n");
630 	if (os_get_command_line(cmd_line, sizeof(cmd_line)))
631 		fprintf(f, "Command: %s\n", cmd_line);
632 	fprintf(f, "Driver vendor: %s\n", screen->get_vendor(screen));
633 	fprintf(f, "Device vendor: %s\n", screen->get_device_vendor(screen));
634 	fprintf(f, "Device name: %s\n\n", screen->get_name(screen));
635 	fprintf(f, "Failing VM page: 0x%08x\n\n", addr);
636 
637 	if (sctx->apitrace_call_number)
638 		fprintf(f, "Last apitrace call: %u\n\n",
639 			sctx->apitrace_call_number);
640 
641 	switch (ring) {
642 	case RING_GFX:
643 		si_dump_debug_state(&sctx->b.b, f,
644 				    PIPE_DUMP_CURRENT_STATES |
645 				    PIPE_DUMP_CURRENT_SHADERS |
646 				    PIPE_DUMP_LAST_COMMAND_BUFFER);
647 		break;
648 
649 	case RING_DMA:
650 		si_dump_dma(sctx, saved, f);
651 		break;
652 
653 	default:
654 		break;
655 	}
656 
657 	fclose(f);
658 
659 	fprintf(stderr, "Detected a VM fault, exiting...\n");
660 	exit(0);
661 }
662 
si_init_debug_functions(struct si_context * sctx)663 void si_init_debug_functions(struct si_context *sctx)
664 {
665 	sctx->b.b.dump_debug_state = si_dump_debug_state;
666 	sctx->b.check_vm_faults = si_check_vm_faults;
667 
668 	/* Set the initial dmesg timestamp for this context, so that
669 	 * only new messages will be checked for VM faults.
670 	 */
671 	if (sctx->screen->b.debug_flags & DBG_CHECK_VM)
672 		si_vm_fault_occured(sctx, NULL);
673 }
674