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panfrost: Print intended field when decoding
[mesa.git] / src / panfrost / pandecode / decode.c
1 /*
2 * Copyright (C) 2017-2019 Alyssa Rosenzweig
3 * Copyright (C) 2017-2019 Connor Abbott
4 * Copyright (C) 2019 Collabora, Ltd.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26 #include <panfrost-job.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <memory.h>
30 #include <stdbool.h>
31 #include <stdarg.h>
32 #include <ctype.h>
33 #include "decode.h"
34 #include "util/macros.h"
35 #include "util/u_math.h"
36
37 #include "pan_pretty_print.h"
38 #include "midgard/disassemble.h"
39 #include "bifrost/disassemble.h"
40
41 #include "pan_encoder.h"
42
43 static void pandecode_swizzle(unsigned swizzle, enum mali_format format);
44
45 #define MEMORY_PROP(obj, p) {\
46 if (obj->p) { \
47 char *a = pointer_as_memory_reference(obj->p); \
48 pandecode_prop("%s = %s", #p, a); \
49 free(a); \
50 } \
51 }
52
53 #define MEMORY_PROP_DIR(obj, p) {\
54 if (obj.p) { \
55 char *a = pointer_as_memory_reference(obj.p); \
56 pandecode_prop("%s = %s", #p, a); \
57 free(a); \
58 } \
59 }
60
61 FILE *pandecode_dump_stream;
62
63 /* Semantic logging type.
64 *
65 * Raw: for raw messages to be printed as is.
66 * Message: for helpful information to be commented out in replays.
67 * Property: for properties of a struct
68 *
69 * Use one of pandecode_log, pandecode_msg, or pandecode_prop as syntax sugar.
70 */
71
72 enum pandecode_log_type {
73 PANDECODE_RAW,
74 PANDECODE_MESSAGE,
75 PANDECODE_PROPERTY
76 };
77
78 #define pandecode_log(...) pandecode_log_typed(PANDECODE_RAW, __VA_ARGS__)
79 #define pandecode_msg(...) pandecode_log_typed(PANDECODE_MESSAGE, __VA_ARGS__)
80 #define pandecode_prop(...) pandecode_log_typed(PANDECODE_PROPERTY, __VA_ARGS__)
81
82 unsigned pandecode_indent = 0;
83
84 static void
85 pandecode_make_indent(void)
86 {
87 for (unsigned i = 0; i < pandecode_indent; ++i)
88 fprintf(pandecode_dump_stream, " ");
89 }
90
91 static void
92 pandecode_log_typed(enum pandecode_log_type type, const char *format, ...)
93 {
94 va_list ap;
95
96 pandecode_make_indent();
97
98 if (type == PANDECODE_MESSAGE)
99 fprintf(pandecode_dump_stream, "// ");
100 else if (type == PANDECODE_PROPERTY)
101 fprintf(pandecode_dump_stream, ".");
102
103 va_start(ap, format);
104 vfprintf(pandecode_dump_stream, format, ap);
105 va_end(ap);
106
107 if (type == PANDECODE_PROPERTY)
108 fprintf(pandecode_dump_stream, ",\n");
109 }
110
111 static void
112 pandecode_log_cont(const char *format, ...)
113 {
114 va_list ap;
115
116 va_start(ap, format);
117 vfprintf(pandecode_dump_stream, format, ap);
118 va_end(ap);
119 }
120
121 /* To check for memory safety issues, validates that the given pointer in GPU
122 * memory is valid, containing at least sz bytes. The goal is to eliminate
123 * GPU-side memory bugs (NULL pointer dereferences, buffer overflows, or buffer
124 * overruns) by statically validating pointers.
125 */
126
127 static void
128 pandecode_validate_buffer(mali_ptr addr, size_t sz)
129 {
130 if (!addr) {
131 pandecode_msg("XXX: null pointer deref");
132 return;
133 }
134
135 /* Find a BO */
136
137 struct pandecode_mapped_memory *bo =
138 pandecode_find_mapped_gpu_mem_containing(addr);
139
140 if (!bo) {
141 pandecode_msg("XXX: invalid memory dereference\n");
142 return;
143 }
144
145 /* Bounds check */
146
147 unsigned offset = addr - bo->gpu_va;
148 unsigned total = offset + sz;
149
150 if (total > bo->length) {
151 pandecode_msg("XXX: buffer overrun. "
152 "Chunk of size %zu at offset %d in buffer of size %zu. "
153 "Overrun by %zu bytes. \n",
154 sz, offset, bo->length, total - bo->length);
155 return;
156 }
157 }
158
159 struct pandecode_flag_info {
160 u64 flag;
161 const char *name;
162 };
163
164 static void
165 pandecode_log_decoded_flags(const struct pandecode_flag_info *flag_info,
166 u64 flags)
167 {
168 bool decodable_flags_found = false;
169
170 for (int i = 0; flag_info[i].name; i++) {
171 if ((flags & flag_info[i].flag) != flag_info[i].flag)
172 continue;
173
174 if (!decodable_flags_found) {
175 decodable_flags_found = true;
176 } else {
177 pandecode_log_cont(" | ");
178 }
179
180 pandecode_log_cont("%s", flag_info[i].name);
181
182 flags &= ~flag_info[i].flag;
183 }
184
185 if (decodable_flags_found) {
186 if (flags)
187 pandecode_log_cont(" | 0x%" PRIx64, flags);
188 } else {
189 pandecode_log_cont("0x%" PRIx64, flags);
190 }
191 }
192
193 #define FLAG_INFO(flag) { MALI_##flag, "MALI_" #flag }
194 static const struct pandecode_flag_info gl_enable_flag_info[] = {
195 FLAG_INFO(OCCLUSION_QUERY),
196 FLAG_INFO(OCCLUSION_PRECISE),
197 FLAG_INFO(FRONT_CCW_TOP),
198 FLAG_INFO(CULL_FACE_FRONT),
199 FLAG_INFO(CULL_FACE_BACK),
200 {}
201 };
202 #undef FLAG_INFO
203
204 #define FLAG_INFO(flag) { MALI_CLEAR_##flag, "MALI_CLEAR_" #flag }
205 static const struct pandecode_flag_info clear_flag_info[] = {
206 FLAG_INFO(FAST),
207 FLAG_INFO(SLOW),
208 FLAG_INFO(SLOW_STENCIL),
209 {}
210 };
211 #undef FLAG_INFO
212
213 #define FLAG_INFO(flag) { MALI_MASK_##flag, "MALI_MASK_" #flag }
214 static const struct pandecode_flag_info mask_flag_info[] = {
215 FLAG_INFO(R),
216 FLAG_INFO(G),
217 FLAG_INFO(B),
218 FLAG_INFO(A),
219 {}
220 };
221 #undef FLAG_INFO
222
223 #define FLAG_INFO(flag) { MALI_##flag, "MALI_" #flag }
224 static const struct pandecode_flag_info u3_flag_info[] = {
225 FLAG_INFO(HAS_MSAA),
226 FLAG_INFO(CAN_DISCARD),
227 FLAG_INFO(HAS_BLEND_SHADER),
228 FLAG_INFO(DEPTH_WRITEMASK),
229 {}
230 };
231
232 static const struct pandecode_flag_info u4_flag_info[] = {
233 FLAG_INFO(NO_MSAA),
234 FLAG_INFO(NO_DITHER),
235 FLAG_INFO(DEPTH_RANGE_A),
236 FLAG_INFO(DEPTH_RANGE_B),
237 FLAG_INFO(STENCIL_TEST),
238 FLAG_INFO(SAMPLE_ALPHA_TO_COVERAGE_NO_BLEND_SHADER),
239 {}
240 };
241 #undef FLAG_INFO
242
243 #define FLAG_INFO(flag) { MALI_MFBD_FORMAT_##flag, "MALI_MFBD_FORMAT_" #flag }
244 static const struct pandecode_flag_info mfbd_fmt_flag_info[] = {
245 FLAG_INFO(MSAA),
246 FLAG_INFO(SRGB),
247 {}
248 };
249 #undef FLAG_INFO
250
251 #define FLAG_INFO(flag) { MALI_EXTRA_##flag, "MALI_EXTRA_" #flag }
252 static const struct pandecode_flag_info mfbd_extra_flag_hi_info[] = {
253 FLAG_INFO(PRESENT),
254 {}
255 };
256 #undef FLAG_INFO
257
258 #define FLAG_INFO(flag) { MALI_EXTRA_##flag, "MALI_EXTRA_" #flag }
259 static const struct pandecode_flag_info mfbd_extra_flag_lo_info[] = {
260 FLAG_INFO(ZS),
261 {}
262 };
263 #undef FLAG_INFO
264
265 #define FLAG_INFO(flag) { MALI_##flag, "MALI_" #flag }
266 static const struct pandecode_flag_info shader_midgard1_flag_info [] = {
267 FLAG_INFO(EARLY_Z),
268 FLAG_INFO(READS_TILEBUFFER),
269 FLAG_INFO(READS_ZS),
270 {}
271 };
272 #undef FLAG_INFO
273
274 #define FLAG_INFO(flag) { MALI_MFBD_##flag, "MALI_MFBD_" #flag }
275 static const struct pandecode_flag_info mfbd_flag_info [] = {
276 FLAG_INFO(DEPTH_WRITE),
277 FLAG_INFO(EXTRA),
278 {}
279 };
280 #undef FLAG_INFO
281
282 #define FLAG_INFO(flag) { MALI_SAMP_##flag, "MALI_SAMP_" #flag }
283 static const struct pandecode_flag_info sampler_flag_info [] = {
284 FLAG_INFO(MAG_NEAREST),
285 FLAG_INFO(MIN_NEAREST),
286 FLAG_INFO(MIP_LINEAR_1),
287 FLAG_INFO(MIP_LINEAR_2),
288 FLAG_INFO(NORM_COORDS),
289 {}
290 };
291 #undef FLAG_INFO
292
293 #define FLAG_INFO(flag) { MALI_SFBD_FORMAT_##flag, "MALI_SFBD_FORMAT_" #flag }
294 static const struct pandecode_flag_info sfbd_unk1_info [] = {
295 FLAG_INFO(MSAA_8),
296 FLAG_INFO(MSAA_A),
297 {}
298 };
299 #undef FLAG_INFO
300
301 #define FLAG_INFO(flag) { MALI_SFBD_FORMAT_##flag, "MALI_SFBD_FORMAT_" #flag }
302 static const struct pandecode_flag_info sfbd_unk2_info [] = {
303 FLAG_INFO(MSAA_B),
304 FLAG_INFO(SRGB),
305 {}
306 };
307 #undef FLAG_INFO
308
309 extern char *replace_fragment;
310 extern char *replace_vertex;
311
312 static char *
313 pandecode_job_type(enum mali_job_type type)
314 {
315 #define DEFINE_CASE(name) case JOB_TYPE_ ## name: return "JOB_TYPE_" #name
316
317 switch (type) {
318 DEFINE_CASE(NULL);
319 DEFINE_CASE(WRITE_VALUE);
320 DEFINE_CASE(CACHE_FLUSH);
321 DEFINE_CASE(COMPUTE);
322 DEFINE_CASE(VERTEX);
323 DEFINE_CASE(TILER);
324 DEFINE_CASE(FUSED);
325 DEFINE_CASE(FRAGMENT);
326
327 case JOB_NOT_STARTED:
328 return "NOT_STARTED";
329
330 default:
331 pandecode_log("Warning! Unknown job type %x\n", type);
332 return "!?!?!?";
333 }
334
335 #undef DEFINE_CASE
336 }
337
338 static char *
339 pandecode_draw_mode(enum mali_draw_mode mode)
340 {
341 #define DEFINE_CASE(name) case MALI_ ## name: return "MALI_" #name
342
343 switch (mode) {
344 DEFINE_CASE(DRAW_NONE);
345 DEFINE_CASE(POINTS);
346 DEFINE_CASE(LINES);
347 DEFINE_CASE(TRIANGLES);
348 DEFINE_CASE(TRIANGLE_STRIP);
349 DEFINE_CASE(TRIANGLE_FAN);
350 DEFINE_CASE(LINE_STRIP);
351 DEFINE_CASE(LINE_LOOP);
352 DEFINE_CASE(POLYGON);
353 DEFINE_CASE(QUADS);
354 DEFINE_CASE(QUAD_STRIP);
355
356 default:
357 pandecode_msg("XXX: invalid draw mode %X\n", mode);
358 return "";
359 }
360
361 #undef DEFINE_CASE
362 }
363
364 #define DEFINE_CASE(name) case MALI_FUNC_ ## name: return "MALI_FUNC_" #name
365 static char *
366 pandecode_func(enum mali_func mode)
367 {
368 switch (mode) {
369 DEFINE_CASE(NEVER);
370 DEFINE_CASE(LESS);
371 DEFINE_CASE(EQUAL);
372 DEFINE_CASE(LEQUAL);
373 DEFINE_CASE(GREATER);
374 DEFINE_CASE(NOTEQUAL);
375 DEFINE_CASE(GEQUAL);
376 DEFINE_CASE(ALWAYS);
377
378 default:
379 pandecode_msg("XXX: invalid func %X\n", mode);
380 return "";
381 }
382 }
383 #undef DEFINE_CASE
384
385 #define DEFINE_CASE(name) case MALI_STENCIL_ ## name: return "MALI_STENCIL_" #name
386 static char *
387 pandecode_stencil_op(enum mali_stencil_op op)
388 {
389 switch (op) {
390 DEFINE_CASE(KEEP);
391 DEFINE_CASE(REPLACE);
392 DEFINE_CASE(ZERO);
393 DEFINE_CASE(INVERT);
394 DEFINE_CASE(INCR_WRAP);
395 DEFINE_CASE(DECR_WRAP);
396 DEFINE_CASE(INCR);
397 DEFINE_CASE(DECR);
398
399 default:
400 pandecode_msg("XXX: invalid stencil op %X\n", op);
401 return "";
402 }
403 }
404
405 #undef DEFINE_CASE
406
407 static char *pandecode_attr_mode_short(enum mali_attr_mode mode)
408 {
409 switch(mode) {
410 /* TODO: Combine to just "instanced" once this can be done
411 * unambiguously in all known cases */
412 case MALI_ATTR_POT_DIVIDE:
413 return "instanced_pot";
414 case MALI_ATTR_MODULO:
415 return "instanced_mod";
416 case MALI_ATTR_NPOT_DIVIDE:
417 return "instanced_npot";
418 case MALI_ATTR_IMAGE:
419 return "image";
420 default:
421 pandecode_msg("XXX: invalid attribute mode %X\n", mode);
422 return "";
423 }
424 }
425
426 static const char *
427 pandecode_special_record(uint64_t v, bool* attribute)
428 {
429 switch(v) {
430 case MALI_ATTR_VERTEXID:
431 *attribute = true;
432 return "gl_VertexID";
433 case MALI_ATTR_INSTANCEID:
434 *attribute = true;
435 return "gl_InstanceID";
436 case MALI_VARYING_FRAG_COORD:
437 return "gl_FragCoord";
438 case MALI_VARYING_FRONT_FACING:
439 return "gl_FrontFacing";
440 case MALI_VARYING_POINT_COORD:
441 return "gl_PointCoord";
442 default:
443 pandecode_msg("XXX: invalid special record %" PRIx64 "\n", v);
444 return "";
445 }
446 }
447
448 #define DEFINE_CASE(name) case MALI_WRAP_## name: return "MALI_WRAP_" #name
449 static char *
450 pandecode_wrap_mode(enum mali_wrap_mode op)
451 {
452 switch (op) {
453 DEFINE_CASE(REPEAT);
454 DEFINE_CASE(CLAMP_TO_EDGE);
455 DEFINE_CASE(CLAMP_TO_BORDER);
456 DEFINE_CASE(MIRRORED_REPEAT);
457
458 default:
459 pandecode_msg("XXX: invalid wrap mode %X\n", op);
460 return "";
461 }
462 }
463 #undef DEFINE_CASE
464
465 #define DEFINE_CASE(name) case MALI_BLOCK_## name: return "MALI_BLOCK_" #name
466 static char *
467 pandecode_block_format(enum mali_block_format fmt)
468 {
469 switch (fmt) {
470 DEFINE_CASE(TILED);
471 DEFINE_CASE(UNKNOWN);
472 DEFINE_CASE(LINEAR);
473 DEFINE_CASE(AFBC);
474
475 default:
476 unreachable("Invalid case");
477 }
478 }
479 #undef DEFINE_CASE
480
481 #define DEFINE_CASE(name) case MALI_EXCEPTION_ACCESS_## name: return ""#name
482 char *
483 pandecode_exception_access(unsigned access)
484 {
485 switch (access) {
486 DEFINE_CASE(NONE);
487 DEFINE_CASE(EXECUTE);
488 DEFINE_CASE(READ);
489 DEFINE_CASE(WRITE);
490
491 default:
492 unreachable("Invalid case");
493 }
494 }
495 #undef DEFINE_CASE
496
497 /* Midgard's tiler descriptor is embedded within the
498 * larger FBD */
499
500 static void
501 pandecode_midgard_tiler_descriptor(
502 const struct midgard_tiler_descriptor *t,
503 unsigned width,
504 unsigned height,
505 bool is_fragment,
506 bool has_hierarchy)
507 {
508 pandecode_log(".tiler = {\n");
509 pandecode_indent++;
510
511 if (t->hierarchy_mask == MALI_TILER_DISABLED)
512 pandecode_prop("hierarchy_mask = MALI_TILER_DISABLED");
513 else
514 pandecode_prop("hierarchy_mask = 0x%" PRIx16, t->hierarchy_mask);
515
516 /* We know this name from the kernel, but we never see it nonzero */
517
518 if (t->flags)
519 pandecode_msg("XXX: unexpected tiler flags 0x%" PRIx16, t->flags);
520
521 MEMORY_PROP(t, polygon_list);
522
523 /* The body is offset from the base of the polygon list */
524 assert(t->polygon_list_body > t->polygon_list);
525 unsigned body_offset = t->polygon_list_body - t->polygon_list;
526
527 /* It needs to fit inside the reported size */
528 assert(t->polygon_list_size >= body_offset);
529
530 /* Check that we fit */
531 struct pandecode_mapped_memory *plist =
532 pandecode_find_mapped_gpu_mem_containing(t->polygon_list);
533
534 assert(t->polygon_list_size <= plist->length);
535
536 /* Now that we've sanity checked, we'll try to calculate the sizes
537 * ourselves for comparison */
538
539 unsigned ref_header = panfrost_tiler_header_size(width, height, t->hierarchy_mask, has_hierarchy);
540 unsigned ref_size = panfrost_tiler_full_size(width, height, t->hierarchy_mask, has_hierarchy);
541
542 if (!((ref_header == body_offset) && (ref_size == t->polygon_list_size))) {
543 pandecode_msg("XXX: bad polygon list size (expected %d / 0x%x)\n",
544 ref_header, ref_size);
545 pandecode_prop("polygon_list_size = 0x%x", t->polygon_list_size);
546 pandecode_msg("body offset %d\n", body_offset);
547 }
548
549 /* The tiler heap has a start and end specified -- it should be
550 * identical to what we have in the BO. The exception is if tiling is
551 * disabled. */
552
553 MEMORY_PROP(t, heap_start);
554 assert(t->heap_end >= t->heap_start);
555
556 struct pandecode_mapped_memory *heap =
557 pandecode_find_mapped_gpu_mem_containing(t->heap_start);
558
559 unsigned heap_size = t->heap_end - t->heap_start;
560
561 /* Tiling is enabled with a special flag */
562 unsigned hierarchy_mask = t->hierarchy_mask & MALI_HIERARCHY_MASK;
563 unsigned tiler_flags = t->hierarchy_mask ^ hierarchy_mask;
564
565 bool tiling_enabled = hierarchy_mask;
566
567 if (tiling_enabled) {
568 /* When tiling is enabled, the heap should be a tight fit */
569 unsigned heap_offset = t->heap_start - heap->gpu_va;
570 if ((heap_offset + heap_size) != heap->length) {
571 pandecode_msg("XXX: heap size %u (expected %zu)\n",
572 heap_size, heap->length - heap_offset);
573 }
574
575 /* We should also have no other flags */
576 if (tiler_flags)
577 pandecode_msg("XXX: unexpected tiler %X\n", tiler_flags);
578 } else {
579 /* When tiling is disabled, we should have that flag and no others */
580
581 if (tiler_flags != MALI_TILER_DISABLED) {
582 pandecode_msg("XXX: unexpected tiler flag %X, expected MALI_TILER_DISABLED\n",
583 tiler_flags);
584 }
585
586 /* We should also have an empty heap */
587 if (heap_size) {
588 pandecode_msg("XXX: tiler heap size %d given, expected empty\n",
589 heap_size);
590 }
591
592 /* Disabled tiling is used only for clear-only jobs, which are
593 * purely FRAGMENT, so we should never see this for
594 * non-FRAGMENT descriptors. */
595
596 if (!is_fragment)
597 pandecode_msg("XXX: tiler disabled for non-FRAGMENT job\n");
598 }
599
600 /* We've never seen weights used in practice, but we know from the
601 * kernel these fields is there */
602
603 bool nonzero_weights = false;
604
605 for (unsigned w = 0; w < ARRAY_SIZE(t->weights); ++w) {
606 nonzero_weights |= t->weights[w] != 0x0;
607 }
608
609 if (nonzero_weights) {
610 pandecode_log(".weights = {");
611
612 for (unsigned w = 0; w < ARRAY_SIZE(t->weights); ++w) {
613 pandecode_log("%d, ", t->weights[w]);
614 }
615
616 pandecode_log("},");
617 }
618
619 pandecode_indent--;
620 pandecode_log("}\n");
621 }
622
623 /* Information about the framebuffer passed back for
624 * additional analysis */
625
626 struct pandecode_fbd {
627 unsigned width;
628 unsigned height;
629 unsigned rt_count;
630 bool has_extra;
631 };
632
633 static void
634 pandecode_sfbd_format(struct mali_sfbd_format format)
635 {
636 pandecode_log(".format = {\n");
637 pandecode_indent++;
638
639 pandecode_log(".unk1 = ");
640 pandecode_log_decoded_flags(sfbd_unk1_info, format.unk1);
641 pandecode_log_cont(",\n");
642
643 /* TODO: Map formats so we can check swizzles and print nicely */
644 pandecode_log("swizzle");
645 pandecode_swizzle(format.swizzle, MALI_RGBA8_UNORM);
646 pandecode_log_cont(",\n");
647
648 pandecode_prop("nr_channels = MALI_POSITIVE(%d)",
649 (format.nr_channels + 1));
650
651 pandecode_log(".unk2 = ");
652 pandecode_log_decoded_flags(sfbd_unk2_info, format.unk2);
653 pandecode_log_cont(",\n");
654
655 pandecode_prop("block = %s", pandecode_block_format(format.block));
656
657 pandecode_prop("unk3 = 0x%" PRIx32, format.unk3);
658
659 pandecode_indent--;
660 pandecode_log("},\n");
661 }
662
663 static struct pandecode_fbd
664 pandecode_sfbd(uint64_t gpu_va, int job_no, bool is_fragment, unsigned gpu_id)
665 {
666 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
667 const struct mali_single_framebuffer *PANDECODE_PTR_VAR(s, mem, (mali_ptr) gpu_va);
668
669 struct pandecode_fbd info = {
670 .has_extra = false,
671 .rt_count = 1
672 };
673
674 pandecode_log("struct mali_single_framebuffer framebuffer_%"PRIx64"_%d = {\n", gpu_va, job_no);
675 pandecode_indent++;
676
677 pandecode_prop("unknown1 = 0x%" PRIx32, s->unknown1);
678 pandecode_prop("unknown2 = 0x%" PRIx32, s->unknown2);
679
680 pandecode_sfbd_format(s->format);
681
682 info.width = s->width + 1;
683 info.height = s->height + 1;
684
685 pandecode_prop("width = MALI_POSITIVE(%" PRId16 ")", info.width);
686 pandecode_prop("height = MALI_POSITIVE(%" PRId16 ")", info.height);
687
688 MEMORY_PROP(s, checksum);
689
690 if (s->checksum_stride)
691 pandecode_prop("checksum_stride = %d", s->checksum_stride);
692
693 MEMORY_PROP(s, framebuffer);
694 pandecode_prop("stride = %d", s->stride);
695
696 /* Earlier in the actual commandstream -- right before width -- but we
697 * delay to flow nicer */
698
699 pandecode_log(".clear_flags = ");
700 pandecode_log_decoded_flags(clear_flag_info, s->clear_flags);
701 pandecode_log_cont(",\n");
702
703 if (s->depth_buffer) {
704 MEMORY_PROP(s, depth_buffer);
705 pandecode_prop("depth_stride = %d", s->depth_stride);
706 }
707
708 if (s->stencil_buffer) {
709 MEMORY_PROP(s, stencil_buffer);
710 pandecode_prop("stencil_stride = %d", s->stencil_stride);
711 }
712
713 if (s->depth_stride_zero ||
714 s->stencil_stride_zero ||
715 s->zero7 || s->zero8) {
716 pandecode_msg("XXX: Depth/stencil zeros tripped\n");
717 pandecode_prop("depth_stride_zero = 0x%x",
718 s->depth_stride_zero);
719 pandecode_prop("stencil_stride_zero = 0x%x",
720 s->stencil_stride_zero);
721 pandecode_prop("zero7 = 0x%" PRIx32,
722 s->zero7);
723 pandecode_prop("zero8 = 0x%" PRIx32,
724 s->zero8);
725 }
726
727 if (s->clear_color_1 | s->clear_color_2 | s->clear_color_3 | s->clear_color_4) {
728 pandecode_prop("clear_color_1 = 0x%" PRIx32, s->clear_color_1);
729 pandecode_prop("clear_color_2 = 0x%" PRIx32, s->clear_color_2);
730 pandecode_prop("clear_color_3 = 0x%" PRIx32, s->clear_color_3);
731 pandecode_prop("clear_color_4 = 0x%" PRIx32, s->clear_color_4);
732 }
733
734 if (s->clear_depth_1 != 0 || s->clear_depth_2 != 0 || s->clear_depth_3 != 0 || s->clear_depth_4 != 0) {
735 pandecode_prop("clear_depth_1 = %f", s->clear_depth_1);
736 pandecode_prop("clear_depth_2 = %f", s->clear_depth_2);
737 pandecode_prop("clear_depth_3 = %f", s->clear_depth_3);
738 pandecode_prop("clear_depth_4 = %f", s->clear_depth_4);
739 }
740
741 if (s->clear_stencil) {
742 pandecode_prop("clear_stencil = 0x%x", s->clear_stencil);
743 }
744
745 MEMORY_PROP(s, scratchpad);
746 const struct midgard_tiler_descriptor t = s->tiler;
747
748 bool has_hierarchy = !(gpu_id == 0x0720 || gpu_id == 0x0820 || gpu_id == 0x0830);
749 pandecode_midgard_tiler_descriptor(&t, s->width + 1, s->height + 1, is_fragment, has_hierarchy);
750
751 pandecode_indent--;
752 pandecode_log("};\n");
753
754 pandecode_prop("zero0 = 0x%" PRIx64, s->zero0);
755 pandecode_prop("zero1 = 0x%" PRIx64, s->zero1);
756 pandecode_prop("zero2 = 0x%" PRIx32, s->zero2);
757 pandecode_prop("zero4 = 0x%" PRIx32, s->zero4);
758 pandecode_prop("zero5 = 0x%" PRIx32, s->zero5);
759
760 pandecode_log_cont(".zero3 = {");
761
762 for (int i = 0; i < sizeof(s->zero3) / sizeof(s->zero3[0]); ++i)
763 pandecode_log_cont("%X, ", s->zero3[i]);
764
765 pandecode_log_cont("},\n");
766
767 pandecode_log_cont(".zero6 = {");
768
769 for (int i = 0; i < sizeof(s->zero6) / sizeof(s->zero6[0]); ++i)
770 pandecode_log_cont("%X, ", s->zero6[i]);
771
772 pandecode_log_cont("},\n");
773
774 return info;
775 }
776
777 static void
778 pandecode_compute_fbd(uint64_t gpu_va, int job_no)
779 {
780 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
781 const struct mali_compute_fbd *PANDECODE_PTR_VAR(s, mem, (mali_ptr) gpu_va);
782
783 pandecode_log("struct mali_compute_fbd framebuffer_%"PRIx64"_%d = {\n", gpu_va, job_no);
784 pandecode_indent++;
785
786 pandecode_log(".unknown1 = {");
787
788 for (int i = 0; i < ARRAY_SIZE(s->unknown1); ++i)
789 pandecode_log_cont("%X, ", s->unknown1[i]);
790
791 pandecode_log("},\n");
792
793 pandecode_indent--;
794 pandecode_log_cont("},\n");
795 }
796
797 /* Extracts the number of components associated with a Mali format */
798
799 static unsigned
800 pandecode_format_component_count(enum mali_format fmt)
801 {
802 /* Mask out the format class */
803 unsigned top = fmt & 0b11100000;
804
805 switch (top) {
806 case MALI_FORMAT_SNORM:
807 case MALI_FORMAT_UINT:
808 case MALI_FORMAT_UNORM:
809 case MALI_FORMAT_SINT:
810 return ((fmt >> 3) & 3) + 1;
811 default:
812 /* TODO: Validate */
813 return 4;
814 }
815 }
816
817 /* Extracts a mask of accessed components from a 12-bit Mali swizzle */
818
819 static unsigned
820 pandecode_access_mask_from_channel_swizzle(unsigned swizzle)
821 {
822 unsigned mask = 0;
823 assert(MALI_CHANNEL_RED == 0);
824
825 for (unsigned c = 0; c < 4; ++c) {
826 enum mali_channel chan = (swizzle >> (3*c)) & 0x7;
827
828 if (chan <= MALI_CHANNEL_ALPHA)
829 mask |= (1 << chan);
830 }
831
832 return mask;
833 }
834
835 /* Validates that a (format, swizzle) pair is valid, in the sense that the
836 * swizzle doesn't access any components that are undefined in the format.
837 * Returns whether the swizzle is trivial (doesn't do any swizzling) and can be
838 * omitted */
839
840 static bool
841 pandecode_validate_format_swizzle(enum mali_format fmt, unsigned swizzle)
842 {
843 unsigned nr_comp = pandecode_format_component_count(fmt);
844 unsigned access_mask = pandecode_access_mask_from_channel_swizzle(swizzle);
845 unsigned valid_mask = (1 << nr_comp) - 1;
846 unsigned invalid_mask = ~valid_mask;
847
848 if (access_mask & invalid_mask) {
849 pandecode_msg("XXX: invalid components accessed\n");
850 return false;
851 }
852
853 /* Check for the default non-swizzling swizzle so we can suppress
854 * useless printing for the defaults */
855
856 unsigned default_swizzles[4] = {
857 MALI_CHANNEL_RED | (MALI_CHANNEL_ZERO << 3) | (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9),
858 MALI_CHANNEL_RED | (MALI_CHANNEL_GREEN << 3) | (MALI_CHANNEL_ZERO << 6) | (MALI_CHANNEL_ONE << 9),
859 MALI_CHANNEL_RED | (MALI_CHANNEL_GREEN << 3) | (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ONE << 9),
860 MALI_CHANNEL_RED | (MALI_CHANNEL_GREEN << 3) | (MALI_CHANNEL_BLUE << 6) | (MALI_CHANNEL_ALPHA << 9)
861 };
862
863 return (swizzle == default_swizzles[nr_comp - 1]);
864 }
865
866 /* Maps MALI_RGBA32F to rgba32f, etc */
867
868 static void
869 pandecode_format_short(enum mali_format fmt, bool srgb)
870 {
871 /* We want a type-like format, so cut off the initial MALI_ */
872 char *format = pandecode_format(fmt);
873 format += strlen("MALI_");
874
875 unsigned len = strlen(format);
876 char *lower_format = calloc(1, len + 1);
877
878 for (unsigned i = 0; i < len; ++i)
879 lower_format[i] = tolower(format[i]);
880
881 /* Sanity check sRGB flag is applied to RGB, per the name */
882 if (srgb && lower_format[0] != 'r')
883 pandecode_msg("XXX: sRGB applied to non-colour format\n");
884
885 /* Just prefix with an s, so you get formats like srgba8_unorm */
886 if (srgb)
887 pandecode_log_cont("s");
888
889 pandecode_log_cont("%s", lower_format);
890 free(lower_format);
891 }
892
893 static void
894 pandecode_swizzle(unsigned swizzle, enum mali_format format)
895 {
896 /* First, do some validation */
897 bool trivial_swizzle = pandecode_validate_format_swizzle(
898 format, swizzle);
899
900 if (trivial_swizzle)
901 return;
902
903 /* Next, print the swizzle */
904 pandecode_log_cont(".");
905
906 static const char components[] = "rgba01";
907
908 for (unsigned c = 0; c < 4; ++c) {
909 enum mali_channel chan = (swizzle >> (3 * c)) & 0x7;
910
911 if (chan >= MALI_CHANNEL_RESERVED_0) {
912 pandecode_log("XXX: invalid swizzle channel %d\n", chan);
913 continue;
914 }
915 pandecode_log_cont("%c", components[chan]);
916 }
917 }
918
919 static void
920 pandecode_rt_format(struct mali_rt_format format)
921 {
922 pandecode_log(".format = {\n");
923 pandecode_indent++;
924
925 pandecode_prop("unk1 = 0x%" PRIx32, format.unk1);
926 pandecode_prop("unk2 = 0x%" PRIx32, format.unk2);
927 pandecode_prop("unk3 = 0x%" PRIx32, format.unk3);
928
929 pandecode_prop("block = %s", pandecode_block_format(format.block));
930
931 /* TODO: Map formats so we can check swizzles and print nicely */
932 pandecode_log("swizzle");
933 pandecode_swizzle(format.swizzle, MALI_RGBA8_UNORM);
934 pandecode_log_cont(",\n");
935
936 pandecode_prop("nr_channels = MALI_POSITIVE(%d)",
937 (format.nr_channels + 1));
938
939 pandecode_log(".flags = ");
940 pandecode_log_decoded_flags(mfbd_fmt_flag_info, format.flags);
941 pandecode_log_cont(",\n");
942
943 /* In theory, the no_preload bit can be cleared to enable MFBD preload,
944 * which is a faster hardware-based alternative to the wallpaper method
945 * to preserve framebuffer contents across frames. In practice, MFBD
946 * preload is buggy on Midgard, and so this is a chicken bit. If this
947 * bit isn't set, most likely something broke unrelated to preload */
948
949 if (!format.no_preload) {
950 pandecode_msg("XXX: buggy MFBD preload enabled - chicken bit should be clear\n");
951 pandecode_prop("no_preload = 0x%" PRIx32, format.no_preload);
952 }
953
954 if (format.zero)
955 pandecode_prop("zero = 0x%" PRIx32, format.zero);
956
957 pandecode_indent--;
958 pandecode_log("},\n");
959 }
960
961 static void
962 pandecode_render_target(uint64_t gpu_va, unsigned job_no, const struct bifrost_framebuffer *fb)
963 {
964 pandecode_log("struct bifrost_render_target rts_list_%"PRIx64"_%d[] = {\n", gpu_va, job_no);
965 pandecode_indent++;
966
967 for (int i = 0; i < (fb->rt_count_1 + 1); i++) {
968 mali_ptr rt_va = gpu_va + i * sizeof(struct bifrost_render_target);
969 struct pandecode_mapped_memory *mem =
970 pandecode_find_mapped_gpu_mem_containing(rt_va);
971 const struct bifrost_render_target *PANDECODE_PTR_VAR(rt, mem, (mali_ptr) rt_va);
972
973 pandecode_log("{\n");
974 pandecode_indent++;
975
976 pandecode_rt_format(rt->format);
977
978 if (rt->format.block == MALI_BLOCK_AFBC) {
979 pandecode_log(".afbc = {\n");
980 pandecode_indent++;
981
982 char *a = pointer_as_memory_reference(rt->afbc.metadata);
983 pandecode_prop("metadata = %s", a);
984 free(a);
985
986 pandecode_prop("stride = %d", rt->afbc.stride);
987 pandecode_prop("unk = 0x%" PRIx32, rt->afbc.unk);
988
989 pandecode_indent--;
990 pandecode_log("},\n");
991 } else if (rt->afbc.metadata || rt->afbc.stride || rt->afbc.unk) {
992 pandecode_msg("XXX: AFBC disabled but AFBC field set (0x%lX, 0x%x, 0x%x)\n",
993 rt->afbc.metadata,
994 rt->afbc.stride,
995 rt->afbc.unk);
996 }
997
998 MEMORY_PROP(rt, framebuffer);
999 pandecode_prop("framebuffer_stride = %d", rt->framebuffer_stride);
1000
1001 if (rt->clear_color_1 | rt->clear_color_2 | rt->clear_color_3 | rt->clear_color_4) {
1002 pandecode_prop("clear_color_1 = 0x%" PRIx32, rt->clear_color_1);
1003 pandecode_prop("clear_color_2 = 0x%" PRIx32, rt->clear_color_2);
1004 pandecode_prop("clear_color_3 = 0x%" PRIx32, rt->clear_color_3);
1005 pandecode_prop("clear_color_4 = 0x%" PRIx32, rt->clear_color_4);
1006 }
1007
1008 if (rt->zero1 || rt->zero2 || rt->zero3) {
1009 pandecode_msg("XXX: render target zeros tripped\n");
1010 pandecode_prop("zero1 = 0x%" PRIx64, rt->zero1);
1011 pandecode_prop("zero2 = 0x%" PRIx32, rt->zero2);
1012 pandecode_prop("zero3 = 0x%" PRIx32, rt->zero3);
1013 }
1014
1015 pandecode_indent--;
1016 pandecode_log("},\n");
1017 }
1018
1019 pandecode_indent--;
1020 pandecode_log("};\n");
1021 }
1022
1023 static struct pandecode_fbd
1024 pandecode_mfbd_bfr(uint64_t gpu_va, int job_no, bool is_fragment, bool is_compute)
1025 {
1026 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
1027 const struct bifrost_framebuffer *PANDECODE_PTR_VAR(fb, mem, (mali_ptr) gpu_va);
1028
1029 struct pandecode_fbd info;
1030
1031 if (fb->sample_locations) {
1032 /* The blob stores all possible sample locations in a single buffer
1033 * allocated on startup, and just switches the pointer when switching
1034 * MSAA state. For now, we just put the data into the cmdstream, but we
1035 * should do something like what the blob does with a real driver.
1036 *
1037 * There seem to be 32 slots for sample locations, followed by another
1038 * 16. The second 16 is just the center location followed by 15 zeros
1039 * in all the cases I've identified (maybe shader vs. depth/color
1040 * samples?).
1041 */
1042
1043 struct pandecode_mapped_memory *smem = pandecode_find_mapped_gpu_mem_containing(fb->sample_locations);
1044
1045 const u16 *PANDECODE_PTR_VAR(samples, smem, fb->sample_locations);
1046
1047 pandecode_log("uint16_t sample_locations_%d[] = {\n", job_no);
1048 pandecode_indent++;
1049
1050 for (int i = 0; i < 32 + 16; i++) {
1051 pandecode_log("%d, %d,\n", samples[2 * i], samples[2 * i + 1]);
1052 }
1053
1054 pandecode_indent--;
1055 pandecode_log("};\n");
1056 }
1057
1058 pandecode_log("struct bifrost_framebuffer framebuffer_%"PRIx64"_%d = {\n", gpu_va, job_no);
1059 pandecode_indent++;
1060
1061 pandecode_prop("stack_shift = 0x%x", fb->stack_shift);
1062 pandecode_prop("unk0 = 0x%x", fb->unk0);
1063
1064 if (fb->sample_locations)
1065 pandecode_prop("sample_locations = sample_locations_%d", job_no);
1066
1067 /* Assume that unknown1 was emitted in the last job for
1068 * now */
1069 MEMORY_PROP(fb, unknown1);
1070
1071 info.width = fb->width1 + 1;
1072 info.height = fb->height1 + 1;
1073 info.rt_count = fb->rt_count_1 + 1;
1074
1075 pandecode_prop("width1 = MALI_POSITIVE(%d)", fb->width1 + 1);
1076 pandecode_prop("height1 = MALI_POSITIVE(%d)", fb->height1 + 1);
1077 pandecode_prop("width2 = MALI_POSITIVE(%d)", fb->width2 + 1);
1078 pandecode_prop("height2 = MALI_POSITIVE(%d)", fb->height2 + 1);
1079
1080 pandecode_prop("unk1 = 0x%x", fb->unk1);
1081 pandecode_prop("unk2 = 0x%x", fb->unk2);
1082 pandecode_prop("rt_count_1 = MALI_POSITIVE(%d)", fb->rt_count_1 + 1);
1083 pandecode_prop("rt_count_2 = %d", fb->rt_count_2);
1084
1085 pandecode_log(".mfbd_flags = ");
1086 pandecode_log_decoded_flags(mfbd_flag_info, fb->mfbd_flags);
1087 pandecode_log_cont(",\n");
1088
1089 if (fb->clear_stencil)
1090 pandecode_prop("clear_stencil = 0x%x", fb->clear_stencil);
1091
1092 if (fb->clear_depth)
1093 pandecode_prop("clear_depth = %f", fb->clear_depth);
1094
1095 /* TODO: What is this? Let's not blow up.. */
1096 if (fb->unknown2 != 0x1F)
1097 pandecode_prop("unknown2 = 0x%x", fb->unknown2);
1098
1099 pandecode_prop("unknown2 = 0x%x", fb->unknown2);
1100 MEMORY_PROP(fb, scratchpad);
1101 const struct midgard_tiler_descriptor t = fb->tiler;
1102 if (!is_compute)
1103 pandecode_midgard_tiler_descriptor(&t, fb->width1 + 1, fb->height1 + 1, is_fragment, true);
1104 else
1105 pandecode_msg("XXX: skipping compute MFBD, fixme\n");
1106
1107 if (fb->zero3 || fb->zero4) {
1108 pandecode_msg("XXX: framebuffer zeros tripped\n");
1109 pandecode_prop("zero3 = 0x%" PRIx32, fb->zero3);
1110 pandecode_prop("zero4 = 0x%" PRIx32, fb->zero4);
1111 }
1112
1113 pandecode_indent--;
1114 pandecode_log("};\n");
1115
1116 gpu_va += sizeof(struct bifrost_framebuffer);
1117
1118 info.has_extra = (fb->mfbd_flags & MALI_MFBD_EXTRA) && is_fragment;
1119
1120 if (info.has_extra) {
1121 mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
1122 const struct bifrost_fb_extra *PANDECODE_PTR_VAR(fbx, mem, (mali_ptr) gpu_va);
1123
1124 pandecode_log("struct bifrost_fb_extra fb_extra_%"PRIx64"_%d = {\n", gpu_va, job_no);
1125 pandecode_indent++;
1126
1127 MEMORY_PROP(fbx, checksum);
1128
1129 if (fbx->checksum_stride)
1130 pandecode_prop("checksum_stride = %d", fbx->checksum_stride);
1131
1132 pandecode_log(".flags_hi = ");
1133 pandecode_log_decoded_flags(mfbd_extra_flag_hi_info, fbx->flags_lo);
1134 pandecode_log_cont(",\n");
1135
1136 pandecode_log(".flags_lo = ");
1137 pandecode_log_decoded_flags(mfbd_extra_flag_lo_info, fbx->flags_lo);
1138 pandecode_log_cont(",\n");
1139
1140 pandecode_prop("zs_block = %s\n", pandecode_block_format(fbx->zs_block));
1141
1142 if (fbx->zs_block == MALI_BLOCK_AFBC) {
1143 pandecode_log(".ds_afbc = {\n");
1144 pandecode_indent++;
1145
1146 MEMORY_PROP_DIR(fbx->ds_afbc, depth_stencil_afbc_metadata);
1147 pandecode_prop("depth_stencil_afbc_stride = %d",
1148 fbx->ds_afbc.depth_stencil_afbc_stride);
1149 MEMORY_PROP_DIR(fbx->ds_afbc, depth_stencil);
1150
1151 if (fbx->ds_afbc.zero1 || fbx->ds_afbc.padding) {
1152 pandecode_msg("XXX: Depth/stencil AFBC zeros tripped\n");
1153 pandecode_prop("zero1 = 0x%" PRIx32,
1154 fbx->ds_afbc.zero1);
1155 pandecode_prop("padding = 0x%" PRIx64,
1156 fbx->ds_afbc.padding);
1157 }
1158
1159 pandecode_indent--;
1160 pandecode_log("},\n");
1161 } else {
1162 pandecode_log(".ds_linear = {\n");
1163 pandecode_indent++;
1164
1165 if (fbx->ds_linear.depth) {
1166 MEMORY_PROP_DIR(fbx->ds_linear, depth);
1167 pandecode_prop("depth_stride = %d",
1168 fbx->ds_linear.depth_stride);
1169 } else if (fbx->ds_linear.depth_stride) {
1170 pandecode_msg("XXX: depth stride zero tripped %d\n", fbx->ds_linear.depth_stride);
1171 }
1172
1173 if (fbx->ds_linear.stencil) {
1174 MEMORY_PROP_DIR(fbx->ds_linear, stencil);
1175 pandecode_prop("stencil_stride = %d",
1176 fbx->ds_linear.stencil_stride);
1177 } else if (fbx->ds_linear.stencil_stride) {
1178 pandecode_msg("XXX: stencil stride zero tripped %d\n", fbx->ds_linear.stencil_stride);
1179 }
1180
1181 if (fbx->ds_linear.depth_stride_zero ||
1182 fbx->ds_linear.stencil_stride_zero ||
1183 fbx->ds_linear.zero1 || fbx->ds_linear.zero2) {
1184 pandecode_msg("XXX: Depth/stencil zeros tripped\n");
1185 pandecode_prop("depth_stride_zero = 0x%x",
1186 fbx->ds_linear.depth_stride_zero);
1187 pandecode_prop("stencil_stride_zero = 0x%x",
1188 fbx->ds_linear.stencil_stride_zero);
1189 pandecode_prop("zero1 = 0x%" PRIx32,
1190 fbx->ds_linear.zero1);
1191 pandecode_prop("zero2 = 0x%" PRIx32,
1192 fbx->ds_linear.zero2);
1193 }
1194
1195 pandecode_indent--;
1196 pandecode_log("},\n");
1197 }
1198
1199 if (fbx->zero3 || fbx->zero4) {
1200 pandecode_msg("XXX: fb_extra zeros tripped\n");
1201 pandecode_prop("zero3 = 0x%" PRIx64, fbx->zero3);
1202 pandecode_prop("zero4 = 0x%" PRIx64, fbx->zero4);
1203 }
1204
1205 pandecode_indent--;
1206 pandecode_log("};\n");
1207
1208 gpu_va += sizeof(struct bifrost_fb_extra);
1209 }
1210
1211 if (is_fragment)
1212 pandecode_render_target(gpu_va, job_no, fb);
1213
1214 return info;
1215 }
1216
1217 /* Just add a comment decoding the shift/odd fields forming the padded vertices
1218 * count */
1219
1220 static void
1221 pandecode_padded_vertices(unsigned shift, unsigned k)
1222 {
1223 unsigned odd = 2*k + 1;
1224 unsigned pot = 1 << shift;
1225 pandecode_msg("padded_num_vertices = %d\n", odd * pot);
1226 }
1227
1228 /* Given a magic divisor, recover what we were trying to divide by.
1229 *
1230 * Let m represent the magic divisor. By definition, m is an element on Z, whre
1231 * 0 <= m < 2^N, for N bits in m.
1232 *
1233 * Let q represent the number we would like to divide by.
1234 *
1235 * By definition of a magic divisor for N-bit unsigned integers (a number you
1236 * multiply by to magically get division), m is a number such that:
1237 *
1238 * (m * x) & (2^N - 1) = floor(x/q).
1239 * for all x on Z where 0 <= x < 2^N
1240 *
1241 * Ignore the case where any of the above values equals zero; it is irrelevant
1242 * for our purposes (instanced arrays).
1243 *
1244 * Choose x = q. Then:
1245 *
1246 * (m * x) & (2^N - 1) = floor(x/q).
1247 * (m * q) & (2^N - 1) = floor(q/q).
1248 *
1249 * floor(q/q) = floor(1) = 1, therefore:
1250 *
1251 * (m * q) & (2^N - 1) = 1
1252 *
1253 * Recall the identity that the bitwise AND of one less than a power-of-two
1254 * equals the modulo with that power of two, i.e. for all x:
1255 *
1256 * x & (2^N - 1) = x % N
1257 *
1258 * Therefore:
1259 *
1260 * mq % (2^N) = 1
1261 *
1262 * By definition, a modular multiplicative inverse of a number m is the number
1263 * q such that with respect to a modulos M:
1264 *
1265 * mq % M = 1
1266 *
1267 * Therefore, q is the modular multiplicative inverse of m with modulus 2^N.
1268 *
1269 */
1270
1271 static void
1272 pandecode_magic_divisor(uint32_t magic, unsigned shift, unsigned orig_divisor, unsigned extra)
1273 {
1274 #if 0
1275 /* Compute the modular inverse of `magic` with respect to 2^(32 -
1276 * shift) the most lame way possible... just repeatedly add.
1277 * Asymptoptically slow but nobody cares in practice, unless you have
1278 * massive numbers of vertices or high divisors. */
1279
1280 unsigned inverse = 0;
1281
1282 /* Magic implicitly has the highest bit set */
1283 magic |= (1 << 31);
1284
1285 /* Depending on rounding direction */
1286 if (extra)
1287 magic++;
1288
1289 for (;;) {
1290 uint32_t product = magic * inverse;
1291
1292 if (shift) {
1293 product >>= shift;
1294 }
1295
1296 if (product == 1)
1297 break;
1298
1299 ++inverse;
1300 }
1301
1302 pandecode_msg("dividing by %d (maybe off by two)\n", inverse);
1303
1304 /* Recall we're supposed to divide by (gl_level_divisor *
1305 * padded_num_vertices) */
1306
1307 unsigned padded_num_vertices = inverse / orig_divisor;
1308
1309 pandecode_msg("padded_num_vertices = %d\n", padded_num_vertices);
1310 #endif
1311 }
1312
1313 static void
1314 pandecode_attributes(const struct pandecode_mapped_memory *mem,
1315 mali_ptr addr, int job_no, char *suffix,
1316 int count, bool varying, enum mali_job_type job_type)
1317 {
1318 char *prefix = varying ? "varying" : "attribute";
1319 assert(addr);
1320
1321 if (!count) {
1322 pandecode_msg("warn: No %s records\n", prefix);
1323 return;
1324 }
1325
1326 union mali_attr *attr = pandecode_fetch_gpu_mem(mem, addr, sizeof(union mali_attr) * count);
1327
1328 for (int i = 0; i < count; ++i) {
1329 /* First, check for special records */
1330 if (attr[i].elements < MALI_RECORD_SPECIAL) {
1331 if (attr[i].size)
1332 pandecode_msg("XXX: tripped size=%d\n", attr[i].size);
1333
1334 if (attr[i].stride) {
1335 /* gl_InstanceID passes a magic divisor in the
1336 * stride field to divide by the padded vertex
1337 * count. No other records should do so, so
1338 * stride should otherwise be zero. Note that
1339 * stride in the usual attribute sense doesn't
1340 * apply to special records. */
1341
1342 bool has_divisor = attr[i].elements == MALI_ATTR_INSTANCEID;
1343
1344 pandecode_log_cont("/* %smagic divisor = %X */ ",
1345 has_divisor ? "" : "XXX: ", attr[i].stride);
1346 }
1347
1348 if (attr[i].shift || attr[i].extra_flags) {
1349 /* Attributes use these fields for
1350 * instancing/padding/etc type issues, but
1351 * varyings don't */
1352
1353 pandecode_log_cont("/* %sshift=%d, extra=%d */ ",
1354 varying ? "XXX: " : "",
1355 attr[i].shift, attr[i].extra_flags);
1356 }
1357
1358 /* Print the special record name */
1359 bool attribute = false;
1360 pandecode_log("%s_%d = %s;\n", prefix, i, pandecode_special_record(attr[i].elements, &attribute));
1361
1362 /* Sanity check */
1363 if (attribute == varying)
1364 pandecode_msg("XXX: mismatched special record\n");
1365
1366 continue;
1367 }
1368
1369 enum mali_attr_mode mode = attr[i].elements & 7;
1370
1371 if (mode == MALI_ATTR_UNUSED)
1372 pandecode_msg("XXX: unused attribute record\n");
1373
1374 /* For non-linear records, we need to print the type of record */
1375 if (mode != MALI_ATTR_LINEAR)
1376 pandecode_log_cont("%s ", pandecode_attr_mode_short(mode));
1377
1378 /* Print the name to link with attr_meta */
1379 pandecode_log_cont("%s_%d", prefix, i);
1380
1381 /* Print the stride and size */
1382 pandecode_log_cont("<%u>[%u]", attr[i].stride, attr[i].size);
1383
1384 /* TODO: Sanity check the quotient itself. It must be equal to
1385 * (or be greater than, if the driver added padding) the padded
1386 * vertex count. */
1387
1388 /* Finally, print the pointer */
1389 mali_ptr raw_elements = attr[i].elements & ~7;
1390 char *a = pointer_as_memory_reference(raw_elements);
1391 pandecode_log_cont(" = (%s);\n", a);
1392 free(a);
1393
1394 /* Check the pointer */
1395 pandecode_validate_buffer(raw_elements, attr[i].size);
1396
1397 /* shift/extra_flags exist only for instanced */
1398 if (attr[i].shift | attr[i].extra_flags) {
1399 /* These are set to random values by the blob for
1400 * varyings, most likely a symptom of uninitialized
1401 * memory where the hardware masked the bug. As such we
1402 * put this at a warning, not an error. */
1403
1404 if (mode == MALI_ATTR_LINEAR)
1405 pandecode_msg("warn: instancing fields set for linear\n");
1406
1407 pandecode_prop("shift = %d", attr[i].shift);
1408 pandecode_prop("extra_flags = %d", attr[i].extra_flags);
1409 }
1410
1411 /* Decode further where possible */
1412
1413 if (mode == MALI_ATTR_MODULO) {
1414 pandecode_padded_vertices(
1415 attr[i].shift,
1416 attr[i].extra_flags);
1417 }
1418
1419 if (mode == MALI_ATTR_NPOT_DIVIDE) {
1420 i++;
1421 pandecode_log("{\n");
1422 pandecode_indent++;
1423 pandecode_prop("unk = 0x%x", attr[i].unk);
1424 pandecode_prop("magic_divisor = 0x%08x", attr[i].magic_divisor);
1425 if (attr[i].zero != 0)
1426 pandecode_prop("XXX: zero tripped (0x%x)\n", attr[i].zero);
1427 pandecode_prop("divisor = %d", attr[i].divisor);
1428 pandecode_magic_divisor(attr[i].magic_divisor, attr[i - 1].shift, attr[i].divisor, attr[i - 1].extra_flags);
1429 pandecode_indent--;
1430 pandecode_log("}, \n");
1431 }
1432
1433 }
1434
1435 pandecode_log("\n");
1436 }
1437
1438 static mali_ptr
1439 pandecode_shader_address(const char *name, mali_ptr ptr)
1440 {
1441 /* TODO: Decode flags */
1442 mali_ptr shader_ptr = ptr & ~15;
1443
1444 char *a = pointer_as_memory_reference(shader_ptr);
1445 pandecode_prop("%s = (%s) | %d", name, a, (int) (ptr & 15));
1446 free(a);
1447
1448 return shader_ptr;
1449 }
1450
1451 static void
1452 pandecode_stencil(const char *name, const struct mali_stencil_test *stencil)
1453 {
1454 unsigned any_nonzero =
1455 stencil->ref | stencil->mask | stencil->func |
1456 stencil->sfail | stencil->dpfail | stencil->dppass;
1457
1458 if (any_nonzero == 0)
1459 return;
1460
1461 const char *func = pandecode_func(stencil->func);
1462 const char *sfail = pandecode_stencil_op(stencil->sfail);
1463 const char *dpfail = pandecode_stencil_op(stencil->dpfail);
1464 const char *dppass = pandecode_stencil_op(stencil->dppass);
1465
1466 if (stencil->zero)
1467 pandecode_msg("XXX: stencil zero tripped: %X\n", stencil->zero);
1468
1469 pandecode_log(".stencil_%s = {\n", name);
1470 pandecode_indent++;
1471 pandecode_prop("ref = %d", stencil->ref);
1472 pandecode_prop("mask = 0x%02X", stencil->mask);
1473 pandecode_prop("func = %s", func);
1474 pandecode_prop("sfail = %s", sfail);
1475 pandecode_prop("dpfail = %s", dpfail);
1476 pandecode_prop("dppass = %s", dppass);
1477 pandecode_indent--;
1478 pandecode_log("},\n");
1479 }
1480
1481 static void
1482 pandecode_blend_equation(const struct mali_blend_equation *blend)
1483 {
1484 if (blend->zero1)
1485 pandecode_msg("XXX: blend zero tripped: %X\n", blend->zero1);
1486
1487 pandecode_log(".equation = {\n");
1488 pandecode_indent++;
1489
1490 pandecode_prop("rgb_mode = 0x%X", blend->rgb_mode);
1491 pandecode_prop("alpha_mode = 0x%X", blend->alpha_mode);
1492
1493 pandecode_log(".color_mask = ");
1494 pandecode_log_decoded_flags(mask_flag_info, blend->color_mask);
1495 pandecode_log_cont(",\n");
1496
1497 pandecode_indent--;
1498 pandecode_log("},\n");
1499 }
1500
1501 /* Decodes a Bifrost blend constant. See the notes in bifrost_blend_rt */
1502
1503 static unsigned
1504 decode_bifrost_constant(u16 constant)
1505 {
1506 float lo = (float) (constant & 0xFF);
1507 float hi = (float) (constant >> 8);
1508
1509 return (hi / 255.0) + (lo / 65535.0);
1510 }
1511
1512 static mali_ptr
1513 pandecode_bifrost_blend(void *descs, int job_no, int rt_no)
1514 {
1515 struct bifrost_blend_rt *b =
1516 ((struct bifrost_blend_rt *) descs) + rt_no;
1517
1518 pandecode_log("struct bifrost_blend_rt blend_rt_%d_%d = {\n", job_no, rt_no);
1519 pandecode_indent++;
1520
1521 pandecode_prop("flags = 0x%" PRIx16, b->flags);
1522 pandecode_prop("constant = 0x%" PRIx8 " /* %f */",
1523 b->constant, decode_bifrost_constant(b->constant));
1524
1525 /* TODO figure out blend shader enable bit */
1526 pandecode_blend_equation(&b->equation);
1527 pandecode_prop("unk2 = 0x%" PRIx16, b->unk2);
1528 pandecode_prop("index = 0x%" PRIx16, b->index);
1529 pandecode_prop("shader = 0x%" PRIx32, b->shader);
1530
1531 pandecode_indent--;
1532 pandecode_log("},\n");
1533
1534 return 0;
1535 }
1536
1537 static mali_ptr
1538 pandecode_midgard_blend(union midgard_blend *blend, bool is_shader)
1539 {
1540 /* constant/equation is in a union */
1541 if (!blend->shader)
1542 return 0;
1543
1544 pandecode_log(".blend = {\n");
1545 pandecode_indent++;
1546
1547 if (is_shader) {
1548 pandecode_shader_address("shader", blend->shader);
1549 } else {
1550 pandecode_blend_equation(&blend->equation);
1551 pandecode_prop("constant = %f", blend->constant);
1552 }
1553
1554 pandecode_indent--;
1555 pandecode_log("},\n");
1556
1557 /* Return blend shader to disassemble if present */
1558 return is_shader ? (blend->shader & ~0xF) : 0;
1559 }
1560
1561 static mali_ptr
1562 pandecode_midgard_blend_mrt(void *descs, int job_no, int rt_no)
1563 {
1564 struct midgard_blend_rt *b =
1565 ((struct midgard_blend_rt *) descs) + rt_no;
1566
1567 /* Flags determine presence of blend shader */
1568 bool is_shader = (b->flags & 0xF) >= 0x2;
1569
1570 pandecode_log("struct midgard_blend_rt blend_rt_%d_%d = {\n", job_no, rt_no);
1571 pandecode_indent++;
1572
1573 pandecode_prop("flags = 0x%" PRIx64, b->flags);
1574
1575 union midgard_blend blend = b->blend;
1576 mali_ptr shader = pandecode_midgard_blend(&blend, is_shader);
1577
1578 pandecode_indent--;
1579 pandecode_log("};\n");
1580
1581 return shader;
1582 }
1583
1584 /* Attributes and varyings have descriptor records, which contain information
1585 * about their format and ordering with the attribute/varying buffers. We'll
1586 * want to validate that the combinations specified are self-consistent.
1587 */
1588
1589 static int
1590 pandecode_attribute_meta(int job_no, int count, const struct mali_vertex_tiler_postfix *v, bool varying, char *suffix)
1591 {
1592 char base[128];
1593 char *prefix = varying ? "varying" : "attribute";
1594 unsigned max_index = 0;
1595 snprintf(base, sizeof(base), "%s_meta", prefix);
1596
1597 struct mali_attr_meta *attr_meta;
1598 mali_ptr p = varying ? v->varying_meta : v->attribute_meta;
1599
1600 struct pandecode_mapped_memory *attr_mem = pandecode_find_mapped_gpu_mem_containing(p);
1601
1602 for (int i = 0; i < count; ++i, p += sizeof(struct mali_attr_meta)) {
1603 attr_meta = pandecode_fetch_gpu_mem(attr_mem, p,
1604 sizeof(*attr_mem));
1605
1606 /* If the record is discard, it should be zero for everything else */
1607
1608 if (attr_meta->format == MALI_VARYING_DISCARD) {
1609 uint64_t zero =
1610 attr_meta->index |
1611 attr_meta->unknown1 |
1612 attr_meta->unknown3 |
1613 attr_meta->src_offset;
1614
1615 if (zero)
1616 pandecode_msg("XXX: expected empty record for varying discard\n");
1617
1618 /* We want to look for a literal 0000 swizzle -- this
1619 * is not encoded with all zeroes, however */
1620
1621 enum mali_channel z = MALI_CHANNEL_ZERO;
1622 unsigned zero_swizzle = z | (z << 3) | (z << 6) | (z << 9);
1623 bool good_swizzle = attr_meta->swizzle == zero_swizzle;
1624
1625 if (!good_swizzle)
1626 pandecode_msg("XXX: expected zero swizzle for discard\n");
1627
1628 if (!varying)
1629 pandecode_msg("XXX: cannot discard attribute\n");
1630
1631 /* If we're all good, omit the record */
1632 if (!zero && varying && good_swizzle) {
1633 pandecode_log("/* discarded varying */\n");
1634 continue;
1635 }
1636 }
1637
1638 if (attr_meta->index > max_index)
1639 max_index = attr_meta->index;
1640
1641 if (attr_meta->unknown1 != 0x2) {
1642 pandecode_msg("XXX: expected unknown1 = 0x2\n");
1643 pandecode_prop("unknown1 = 0x%" PRIx64, (u64) attr_meta->unknown1);
1644 }
1645
1646 if (attr_meta->unknown3) {
1647 pandecode_msg("XXX: unexpected unknown3 set\n");
1648 pandecode_prop("unknown3 = 0x%" PRIx64, (u64) attr_meta->unknown3);
1649 }
1650
1651 pandecode_format_short(attr_meta->format, false);
1652 pandecode_log_cont(" %s_%u", prefix, attr_meta->index);
1653
1654 if (attr_meta->src_offset)
1655 pandecode_log_cont("[%u]", attr_meta->src_offset);
1656
1657 pandecode_swizzle(attr_meta->swizzle, attr_meta->format);
1658
1659 pandecode_log_cont(";\n");
1660 }
1661
1662 pandecode_log("\n");
1663
1664 return count ? (max_index + 1) : 0;
1665 }
1666
1667 /* return bits [lo, hi) of word */
1668 static u32
1669 bits(u32 word, u32 lo, u32 hi)
1670 {
1671 if (hi - lo >= 32)
1672 return word; // avoid undefined behavior with the shift
1673
1674 return (word >> lo) & ((1 << (hi - lo)) - 1);
1675 }
1676
1677 static void
1678 pandecode_vertex_tiler_prefix(struct mali_vertex_tiler_prefix *p, int job_no, bool graphics)
1679 {
1680 pandecode_log_cont("{\n");
1681 pandecode_indent++;
1682
1683 /* Decode invocation_count. See the comment before the definition of
1684 * invocation_count for an explanation.
1685 */
1686
1687 unsigned size_y_shift = bits(p->invocation_shifts, 0, 5);
1688 unsigned size_z_shift = bits(p->invocation_shifts, 5, 10);
1689 unsigned workgroups_x_shift = bits(p->invocation_shifts, 10, 16);
1690 unsigned workgroups_y_shift = bits(p->invocation_shifts, 16, 22);
1691 unsigned workgroups_z_shift = bits(p->invocation_shifts, 22, 28);
1692 unsigned workgroups_x_shift_2 = bits(p->invocation_shifts, 28, 32);
1693
1694 unsigned size_x = bits(p->invocation_count, 0, size_y_shift) + 1;
1695 unsigned size_y = bits(p->invocation_count, size_y_shift, size_z_shift) + 1;
1696 unsigned size_z = bits(p->invocation_count, size_z_shift, workgroups_x_shift) + 1;
1697
1698 unsigned groups_x = bits(p->invocation_count, workgroups_x_shift, workgroups_y_shift) + 1;
1699 unsigned groups_y = bits(p->invocation_count, workgroups_y_shift, workgroups_z_shift) + 1;
1700 unsigned groups_z = bits(p->invocation_count, workgroups_z_shift, 32) + 1;
1701
1702 /* Even though we have this decoded, we want to ensure that the
1703 * representation is "unique" so we don't lose anything by printing only
1704 * the final result. More specifically, we need to check that we were
1705 * passed something in canonical form, since the definition per the
1706 * hardware is inherently not unique. How? Well, take the resulting
1707 * decode and pack it ourselves! If it is bit exact with what we
1708 * decoded, we're good to go. */
1709
1710 struct mali_vertex_tiler_prefix ref;
1711 panfrost_pack_work_groups_compute(&ref, groups_x, groups_y, groups_z, size_x, size_y, size_z, graphics);
1712
1713 bool canonical =
1714 (p->invocation_count == ref.invocation_count) &&
1715 (p->invocation_shifts == ref.invocation_shifts);
1716
1717 if (!canonical) {
1718 pandecode_msg("XXX: non-canonical workgroups packing\n");
1719 pandecode_msg("expected: %X, %X",
1720 ref.invocation_count,
1721 ref.invocation_shifts);
1722
1723 pandecode_prop("invocation_count = 0x%" PRIx32, p->invocation_count);
1724 pandecode_prop("size_y_shift = %d", size_y_shift);
1725 pandecode_prop("size_z_shift = %d", size_z_shift);
1726 pandecode_prop("workgroups_x_shift = %d", workgroups_x_shift);
1727 pandecode_prop("workgroups_y_shift = %d", workgroups_y_shift);
1728 pandecode_prop("workgroups_z_shift = %d", workgroups_z_shift);
1729 pandecode_prop("workgroups_x_shift_2 = %d", workgroups_x_shift_2);
1730 }
1731
1732 /* Regardless, print the decode */
1733 pandecode_msg("size (%d, %d, %d), count (%d, %d, %d)\n",
1734 size_x, size_y, size_z,
1735 groups_x, groups_y, groups_z);
1736
1737 /* TODO: Decode */
1738 if (p->unknown_draw)
1739 pandecode_prop("unknown_draw = 0x%" PRIx32, p->unknown_draw);
1740
1741 pandecode_prop("workgroups_x_shift_3 = 0x%" PRIx32, p->workgroups_x_shift_3);
1742
1743 if (p->draw_mode != MALI_DRAW_NONE)
1744 pandecode_prop("draw_mode = %s", pandecode_draw_mode(p->draw_mode));
1745
1746 /* Index count only exists for tiler jobs anyway */
1747
1748 if (p->index_count)
1749 pandecode_prop("index_count = MALI_POSITIVE(%" PRId32 ")", p->index_count + 1);
1750
1751
1752 unsigned index_raw_size = (p->unknown_draw & MALI_DRAW_INDEXED_SIZE);
1753 index_raw_size >>= MALI_DRAW_INDEXED_SHIFT;
1754
1755 /* Validate an index buffer is present if we need one. TODO: verify
1756 * relationship between invocation_count and index_count */
1757
1758 if (p->indices) {
1759 unsigned count = p->index_count;
1760
1761 /* Grab the size */
1762 unsigned size = (index_raw_size == 0x3) ? 4 : index_raw_size;
1763
1764 /* Ensure we got a size, and if so, validate the index buffer
1765 * is large enough to hold a full set of indices of the given
1766 * size */
1767
1768 if (!index_raw_size)
1769 pandecode_msg("XXX: index size missing\n");
1770 else
1771 pandecode_validate_buffer(p->indices, count * size);
1772 } else if (index_raw_size)
1773 pandecode_msg("XXX: unexpected index size %u\n", index_raw_size);
1774
1775 if (p->offset_bias_correction)
1776 pandecode_prop("offset_bias_correction = %d", p->offset_bias_correction);
1777
1778 /* TODO: Figure out what this is. It's not zero */
1779 pandecode_prop("zero1 = 0x%" PRIx32, p->zero1);
1780
1781 pandecode_indent--;
1782 pandecode_log("},\n");
1783 }
1784
1785 static void
1786 pandecode_uniform_buffers(mali_ptr pubufs, int ubufs_count, int job_no)
1787 {
1788 struct pandecode_mapped_memory *umem = pandecode_find_mapped_gpu_mem_containing(pubufs);
1789 struct mali_uniform_buffer_meta *PANDECODE_PTR_VAR(ubufs, umem, pubufs);
1790
1791 for (int i = 0; i < ubufs_count; i++) {
1792 unsigned size = (ubufs[i].size + 1) * 16;
1793 mali_ptr addr = ubufs[i].ptr << 2;
1794
1795 pandecode_validate_buffer(addr, size);
1796
1797 char *ptr = pointer_as_memory_reference(ubufs[i].ptr << 2);
1798 pandecode_log("ubuf_%d[%u] = %s;\n", i, size, ptr);
1799 free(ptr);
1800 }
1801
1802 pandecode_log("\n");
1803 }
1804
1805 static void
1806 pandecode_uniforms(mali_ptr uniforms, unsigned uniform_count)
1807 {
1808 pandecode_validate_buffer(uniforms, uniform_count * 16);
1809
1810 char *ptr = pointer_as_memory_reference(uniforms);
1811 pandecode_log("vec4 uniforms[%u] = %s;\n", uniform_count, ptr);
1812 free(ptr);
1813 }
1814
1815 static void
1816 pandecode_scratchpad(uintptr_t pscratchpad, int job_no, char *suffix)
1817 {
1818
1819 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(pscratchpad);
1820
1821 struct bifrost_scratchpad *PANDECODE_PTR_VAR(scratchpad, mem, pscratchpad);
1822
1823 if (scratchpad->zero) {
1824 pandecode_msg("XXX: scratchpad zero tripped");
1825 pandecode_prop("zero = 0x%x\n", scratchpad->zero);
1826 }
1827
1828 pandecode_log("struct bifrost_scratchpad scratchpad_%"PRIx64"_%d%s = {\n", pscratchpad, job_no, suffix);
1829 pandecode_indent++;
1830
1831 pandecode_prop("flags = 0x%x", scratchpad->flags);
1832 MEMORY_PROP(scratchpad, gpu_scratchpad);
1833
1834 pandecode_indent--;
1835 pandecode_log("};\n");
1836 }
1837
1838 static const char *
1839 shader_type_for_job(unsigned type)
1840 {
1841 switch (type) {
1842 case JOB_TYPE_VERTEX: return "VERTEX";
1843 case JOB_TYPE_TILER: return "FRAGMENT";
1844 case JOB_TYPE_COMPUTE: return "COMPUTE";
1845 default:
1846 return "UNKNOWN";
1847 }
1848 }
1849
1850 static unsigned shader_id = 0;
1851
1852 static struct midgard_disasm_stats
1853 pandecode_shader_disassemble(mali_ptr shader_ptr, int shader_no, int type,
1854 bool is_bifrost, unsigned gpu_id)
1855 {
1856 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(shader_ptr);
1857 uint8_t *PANDECODE_PTR_VAR(code, mem, shader_ptr);
1858
1859 /* Compute maximum possible size */
1860 size_t sz = mem->length - (shader_ptr - mem->gpu_va);
1861
1862 /* Print some boilerplate to clearly denote the assembly (which doesn't
1863 * obey indentation rules), and actually do the disassembly! */
1864
1865 pandecode_log_cont("\n\n");
1866
1867 struct midgard_disasm_stats stats;
1868
1869 if (is_bifrost) {
1870 disassemble_bifrost(pandecode_dump_stream, code, sz, false);
1871
1872 /* TODO: Extend stats to Bifrost */
1873 stats.texture_count = -128;
1874 stats.sampler_count = -128;
1875 stats.attribute_count = -128;
1876 stats.varying_count = -128;
1877 stats.uniform_count = -128;
1878 stats.uniform_buffer_count = -128;
1879 stats.work_count = -128;
1880
1881 stats.instruction_count = 0;
1882 stats.bundle_count = 0;
1883 stats.quadword_count = 0;
1884 stats.helper_invocations = false;
1885 } else {
1886 stats = disassemble_midgard(pandecode_dump_stream,
1887 code, sz, gpu_id,
1888 type == JOB_TYPE_TILER ?
1889 MESA_SHADER_FRAGMENT : MESA_SHADER_VERTEX);
1890 }
1891
1892 /* Print shader-db stats. Skip COMPUTE jobs since they are used for
1893 * driver-internal purposes with the blob and interfere */
1894
1895 bool should_shaderdb = type != JOB_TYPE_COMPUTE;
1896
1897 if (should_shaderdb) {
1898 unsigned nr_threads =
1899 (stats.work_count <= 4) ? 4 :
1900 (stats.work_count <= 8) ? 2 :
1901 1;
1902
1903 pandecode_log_cont("shader%d - MESA_SHADER_%s shader: "
1904 "%u inst, %u bundles, %u quadwords, "
1905 "%u registers, %u threads, 0 loops, 0:0 spills:fills\n\n\n",
1906 shader_id++,
1907 shader_type_for_job(type),
1908 stats.instruction_count, stats.bundle_count, stats.quadword_count,
1909 stats.work_count, nr_threads);
1910 }
1911
1912
1913 return stats;
1914 }
1915
1916 static void
1917 pandecode_texture(mali_ptr u,
1918 struct pandecode_mapped_memory *tmem,
1919 unsigned job_no, unsigned tex)
1920 {
1921 struct mali_texture_descriptor *PANDECODE_PTR_VAR(t, tmem, u);
1922
1923 pandecode_log("struct mali_texture_descriptor texture_descriptor_%"PRIx64"_%d_%d = {\n", u, job_no, tex);
1924 pandecode_indent++;
1925
1926 struct mali_texture_format f = t->format;
1927
1928 /* See the definiton of enum mali_texture_type */
1929
1930 bool is_cube = f.type == MALI_TEX_CUBE;
1931 unsigned dimension = is_cube ? 2 : f.type;
1932
1933 pandecode_make_indent();
1934
1935 /* TODO: Are there others? */
1936 bool is_zs = f.format == MALI_Z32_UNORM;
1937
1938 /* Recall Z/S switched the meaning of linear/tiled .. */
1939 if (is_zs && f.layout == MALI_TEXTURE_LINEAR)
1940 pandecode_msg("XXX: depth/stencil cannot be tiled\n");
1941
1942 /* Print the layout. Default is linear; a modifier can denote AFBC or
1943 * u-interleaved/tiled modes */
1944
1945 if (f.layout == MALI_TEXTURE_AFBC)
1946 pandecode_log_cont("afbc");
1947 else if (f.layout == MALI_TEXTURE_TILED)
1948 pandecode_log_cont("tiled");
1949 else if (f.layout == MALI_TEXTURE_LINEAR)
1950 pandecode_log_cont("linear");
1951 else
1952 pandecode_msg("XXX: invalid texture layout 0x%X\n", f.layout);
1953
1954 pandecode_swizzle(t->swizzle, f.format);
1955 pandecode_log_cont(" ");
1956
1957 /* Distinguish cube/2D with modifier */
1958
1959 if (is_cube)
1960 pandecode_log_cont("cube ");
1961
1962 pandecode_format_short(f.format, f.srgb);
1963 pandecode_swizzle(f.swizzle, f.format);
1964
1965 /* All four width/height/depth/array_size dimensions are present
1966 * regardless of the type of texture, but it is an error to have
1967 * non-zero dimensions for unused dimensions. Verify this. array_size
1968 * can always be set, as can width. */
1969
1970 if (t->height && dimension < 2)
1971 pandecode_msg("XXX: nonzero height for <2D texture\n");
1972
1973 if (t->depth && dimension < 3)
1974 pandecode_msg("XXX: nonzero depth for <2D texture\n");
1975
1976 /* Print only the dimensions that are actually there */
1977
1978 pandecode_log_cont(": %d", t->width + 1);
1979
1980 if (dimension >= 2)
1981 pandecode_log_cont("x%u", t->height + 1);
1982
1983 if (dimension >= 3)
1984 pandecode_log_cont("x%u", t->depth + 1);
1985
1986 if (t->array_size)
1987 pandecode_log_cont("[%u]", t->array_size + 1);
1988
1989 if (t->levels)
1990 pandecode_log_cont(" mip %u", t->levels);
1991
1992 pandecode_log_cont("\n");
1993
1994 if (f.unknown1 | f.zero) {
1995 pandecode_msg("XXX: texture format zero tripped\n");
1996 pandecode_prop("unknown1 = %" PRId32, f.unknown1);
1997 pandecode_prop("zero = %" PRId32, f.zero);
1998 }
1999
2000 if (!f.unknown2) {
2001 pandecode_msg("XXX: expected unknown texture bit set\n");
2002 pandecode_prop("unknown2 = %" PRId32, f.unknown2);
2003 }
2004
2005 if (t->swizzle_zero) {
2006 pandecode_msg("XXX: swizzle zero tripped\n");
2007 pandecode_prop("swizzle_zero = %d", t->swizzle_zero);
2008 }
2009
2010 if (t->unknown3 | t->unknown3A | t->unknown5 | t->unknown6 | t->unknown7) {
2011 pandecode_msg("XXX: texture zero tripped\n");
2012 pandecode_prop("unknown3 = %" PRId16, t->unknown3);
2013 pandecode_prop("unknown3A = %" PRId8, t->unknown3A);
2014 pandecode_prop("unknown5 = 0x%" PRIx32, t->unknown5);
2015 pandecode_prop("unknown6 = 0x%" PRIx32, t->unknown6);
2016 pandecode_prop("unknown7 = 0x%" PRIx32, t->unknown7);
2017 }
2018
2019 pandecode_log(".payload = {\n");
2020 pandecode_indent++;
2021
2022 /* A bunch of bitmap pointers follow.
2023 * We work out the correct number,
2024 * based on the mipmap/cubemap
2025 * properties, but dump extra
2026 * possibilities to futureproof */
2027
2028 int bitmap_count = t->levels + 1;
2029
2030 /* Miptree for each face */
2031 if (f.type == MALI_TEX_CUBE)
2032 bitmap_count *= 6;
2033 else if (f.type == MALI_TEX_3D)
2034 bitmap_count *= t->depth;
2035
2036 /* Array of textures */
2037 bitmap_count *= (t->array_size + 1);
2038
2039 /* Stride for each element */
2040 if (f.manual_stride)
2041 bitmap_count *= 2;
2042
2043 mali_ptr *pointers_and_strides = pandecode_fetch_gpu_mem(tmem,
2044 u + sizeof(*t), sizeof(mali_ptr) * bitmap_count);
2045 for (int i = 0; i < bitmap_count; ++i) {
2046 /* How we dump depends if this is a stride or a pointer */
2047
2048 if (f.manual_stride && (i & 1)) {
2049 /* signed 32-bit snuck in as a 64-bit pointer */
2050 uint64_t stride_set = pointers_and_strides[i];
2051 uint32_t clamped_stride = stride_set;
2052 int32_t stride = clamped_stride;
2053 assert(stride_set == clamped_stride);
2054 pandecode_log("(mali_ptr) %d /* stride */, \n", stride);
2055 } else {
2056 char *a = pointer_as_memory_reference(pointers_and_strides[i]);
2057 pandecode_log("%s, \n", a);
2058 free(a);
2059 }
2060 }
2061
2062 pandecode_indent--;
2063 pandecode_log("},\n");
2064
2065 pandecode_indent--;
2066 pandecode_log("};\n");
2067 }
2068
2069 /* For shader properties like texture_count, we have a claimed property in the shader_meta, and the actual Truth from static analysis (this may just be an upper limit). We validate accordingly */
2070
2071 static void
2072 pandecode_shader_prop(const char *name, unsigned claim, signed truth, bool fuzzy)
2073 {
2074 /* Nothing to do */
2075 if (claim == truth)
2076 return;
2077
2078 if (fuzzy)
2079 assert(truth >= 0);
2080
2081 if ((truth >= 0) && !fuzzy) {
2082 pandecode_msg("%s: expected %s = %d, claimed %u\n",
2083 (truth < claim) ? "warn" : "XXX",
2084 name, truth, claim);
2085 } else if ((claim > -truth) && !fuzzy) {
2086 pandecode_msg("XXX: expected %s <= %u, claimed %u\n",
2087 name, -truth, claim);
2088 } else if (fuzzy && (claim < truth))
2089 pandecode_msg("XXX: expected %s >= %u, claimed %u\n",
2090 name, truth, claim);
2091
2092 pandecode_log(".%s = %" PRId16, name, claim);
2093
2094 if (fuzzy)
2095 pandecode_log_cont(" /* %u used */", truth);
2096
2097 pandecode_log_cont(",\n");
2098 }
2099
2100 static void
2101 pandecode_blend_shader_disassemble(mali_ptr shader, int job_no, int job_type,
2102 bool is_bifrost, unsigned gpu_id)
2103 {
2104 struct midgard_disasm_stats stats =
2105 pandecode_shader_disassemble(shader, job_no, job_type, is_bifrost, gpu_id);
2106
2107 bool has_texture = (stats.texture_count > 0);
2108 bool has_sampler = (stats.sampler_count > 0);
2109 bool has_attribute = (stats.attribute_count > 0);
2110 bool has_varying = (stats.varying_count > 0);
2111 bool has_uniform = (stats.uniform_count > 0);
2112 bool has_ubo = (stats.uniform_buffer_count > 0);
2113
2114 if (has_texture || has_sampler)
2115 pandecode_msg("XXX: blend shader accessing textures\n");
2116
2117 if (has_attribute || has_varying)
2118 pandecode_msg("XXX: blend shader accessing interstage\n");
2119
2120 if (has_uniform || has_ubo)
2121 pandecode_msg("XXX: blend shader accessing uniforms\n");
2122 }
2123
2124 static void
2125 pandecode_vertex_tiler_postfix_pre(
2126 const struct mali_vertex_tiler_postfix *p,
2127 int job_no, enum mali_job_type job_type,
2128 char *suffix, bool is_bifrost, unsigned gpu_id)
2129 {
2130 struct pandecode_mapped_memory *attr_mem;
2131
2132 /* On Bifrost, since the tiler heap (for tiler jobs) and the scratchpad
2133 * are the only things actually needed from the FBD, vertex/tiler jobs
2134 * no longer reference the FBD -- instead, this field points to some
2135 * info about the scratchpad.
2136 */
2137
2138 struct pandecode_fbd fbd_info = {
2139 /* Default for Bifrost */
2140 .rt_count = 1
2141 };
2142
2143 if (is_bifrost)
2144 pandecode_scratchpad(p->framebuffer & ~1, job_no, suffix);
2145 else if (p->framebuffer & MALI_MFBD)
2146 fbd_info = pandecode_mfbd_bfr((u64) ((uintptr_t) p->framebuffer) & FBD_MASK, job_no, false, job_type == JOB_TYPE_COMPUTE);
2147 else if (job_type == JOB_TYPE_COMPUTE)
2148 pandecode_compute_fbd((u64) (uintptr_t) p->framebuffer, job_no);
2149 else
2150 fbd_info = pandecode_sfbd((u64) (uintptr_t) p->framebuffer, job_no, false, gpu_id);
2151
2152 int varying_count = 0, attribute_count = 0, uniform_count = 0, uniform_buffer_count = 0;
2153 int texture_count = 0, sampler_count = 0;
2154
2155 if (p->shader) {
2156 struct pandecode_mapped_memory *smem = pandecode_find_mapped_gpu_mem_containing(p->shader);
2157 struct mali_shader_meta *PANDECODE_PTR_VAR(s, smem, p->shader);
2158
2159 /* Disassemble ahead-of-time to get stats. Initialize with
2160 * stats for the missing-shader case so we get validation
2161 * there, too */
2162
2163 struct midgard_disasm_stats info = {
2164 .texture_count = 0,
2165 .sampler_count = 0,
2166 .attribute_count = 0,
2167 .varying_count = 0,
2168 .work_count = 1,
2169
2170 .uniform_count = -128,
2171 .uniform_buffer_count = 0
2172 };
2173
2174 if (s->shader & ~0xF)
2175 info = pandecode_shader_disassemble(s->shader & ~0xF, job_no, job_type, is_bifrost, gpu_id);
2176
2177 pandecode_log("struct mali_shader_meta shader_meta_%"PRIx64"_%d%s = {\n", p->shader, job_no, suffix);
2178 pandecode_indent++;
2179
2180 /* Save for dumps */
2181 attribute_count = s->attribute_count;
2182 varying_count = s->varying_count;
2183 texture_count = s->texture_count;
2184 sampler_count = s->sampler_count;
2185
2186 if (is_bifrost) {
2187 uniform_count = s->bifrost2.uniform_count;
2188 uniform_buffer_count = s->bifrost1.uniform_buffer_count;
2189 } else {
2190 uniform_count = s->midgard1.uniform_count;
2191 uniform_buffer_count = s->midgard1.uniform_buffer_count;
2192 }
2193
2194 pandecode_shader_address("shader", s->shader);
2195
2196 pandecode_shader_prop("texture_count", s->texture_count, info.texture_count, false);
2197 pandecode_shader_prop("sampler_count", s->sampler_count, info.sampler_count, false);
2198 pandecode_shader_prop("attribute_count", s->attribute_count, info.attribute_count, false);
2199 pandecode_shader_prop("varying_count", s->varying_count, info.varying_count, false);
2200 pandecode_shader_prop("uniform_buffer_count",
2201 uniform_buffer_count,
2202 info.uniform_buffer_count, true);
2203
2204 if (!is_bifrost) {
2205 pandecode_shader_prop("uniform_count",
2206 uniform_count,
2207 info.uniform_count, false);
2208
2209 pandecode_shader_prop("work_count",
2210 s->midgard1.work_count, info.work_count, false);
2211 }
2212
2213 if (is_bifrost) {
2214 pandecode_prop("bifrost1.unk1 = 0x%" PRIx32, s->bifrost1.unk1);
2215 } else {
2216 bool helpers = s->midgard1.flags & MALI_HELPER_INVOCATIONS;
2217 s->midgard1.flags &= ~MALI_HELPER_INVOCATIONS;
2218
2219 if (helpers != info.helper_invocations) {
2220 pandecode_msg("XXX: expected helpers %u but got %u\n",
2221 info.helper_invocations, helpers);
2222 }
2223
2224 pandecode_log(".midgard1.flags = ");
2225 pandecode_log_decoded_flags(shader_midgard1_flag_info, s->midgard1.flags);
2226 pandecode_log_cont(",\n");
2227
2228 pandecode_prop("midgard1.unknown2 = 0x%" PRIx32, s->midgard1.unknown2);
2229 }
2230
2231 if (s->depth_units || s->depth_factor) {
2232 pandecode_prop("depth_factor = %f", s->depth_factor);
2233 pandecode_prop("depth_units = %f", s->depth_units);
2234 }
2235
2236 if (s->alpha_coverage) {
2237 bool invert_alpha_coverage = s->alpha_coverage & 0xFFF0;
2238 uint16_t inverted_coverage = invert_alpha_coverage ? ~s->alpha_coverage : s->alpha_coverage;
2239
2240 pandecode_prop("alpha_coverage = %sMALI_ALPHA_COVERAGE(%f)",
2241 invert_alpha_coverage ? "~" : "",
2242 MALI_GET_ALPHA_COVERAGE(inverted_coverage));
2243 }
2244
2245 if (s->unknown2_3 || s->unknown2_4) {
2246 pandecode_log(".unknown2_3 = ");
2247
2248 int unknown2_3 = s->unknown2_3;
2249 int unknown2_4 = s->unknown2_4;
2250
2251 /* We're not quite sure what these flags mean without the depth test, if anything */
2252
2253 if (unknown2_3 & (MALI_DEPTH_WRITEMASK | MALI_DEPTH_FUNC_MASK)) {
2254 const char *func = pandecode_func(MALI_GET_DEPTH_FUNC(unknown2_3));
2255 unknown2_3 &= ~MALI_DEPTH_FUNC_MASK;
2256
2257 pandecode_log_cont("MALI_DEPTH_FUNC(%s) | ", func);
2258 }
2259
2260 pandecode_log_decoded_flags(u3_flag_info, unknown2_3);
2261 pandecode_log_cont(",\n");
2262
2263 pandecode_log(".unknown2_4 = ");
2264 pandecode_log_decoded_flags(u4_flag_info, unknown2_4);
2265 pandecode_log_cont(",\n");
2266 }
2267
2268 if (s->stencil_mask_front || s->stencil_mask_back) {
2269 pandecode_prop("stencil_mask_front = 0x%02X", s->stencil_mask_front);
2270 pandecode_prop("stencil_mask_back = 0x%02X", s->stencil_mask_back);
2271 }
2272
2273 pandecode_stencil("front", &s->stencil_front);
2274 pandecode_stencil("back", &s->stencil_back);
2275
2276 if (is_bifrost) {
2277 pandecode_log(".bifrost2 = {\n");
2278 pandecode_indent++;
2279
2280 pandecode_prop("unk3 = 0x%" PRIx32, s->bifrost2.unk3);
2281 pandecode_prop("preload_regs = 0x%" PRIx32, s->bifrost2.preload_regs);
2282 pandecode_prop("uniform_count = %" PRId32, s->bifrost2.uniform_count);
2283 pandecode_prop("unk4 = 0x%" PRIx32, s->bifrost2.unk4);
2284
2285 pandecode_indent--;
2286 pandecode_log("},\n");
2287 } else if (s->midgard2.unknown2_7) {
2288 pandecode_log(".midgard2 = {\n");
2289 pandecode_indent++;
2290
2291 pandecode_prop("unknown2_7 = 0x%" PRIx32, s->midgard2.unknown2_7);
2292 pandecode_indent--;
2293 pandecode_log("},\n");
2294 }
2295
2296 if (s->unknown2_8)
2297 pandecode_prop("unknown2_8 = 0x%" PRIx32, s->unknown2_8);
2298
2299 if (!is_bifrost) {
2300 /* TODO: Blend shaders routing/disasm */
2301 union midgard_blend blend = s->blend;
2302 mali_ptr shader = pandecode_midgard_blend(&blend, s->unknown2_3 & MALI_HAS_BLEND_SHADER);
2303 if (shader & ~0xF)
2304 pandecode_blend_shader_disassemble(shader, job_no, job_type, false, gpu_id);
2305 }
2306
2307 pandecode_indent--;
2308 pandecode_log("};\n");
2309
2310 /* MRT blend fields are used whenever MFBD is used, with
2311 * per-RT descriptors */
2312
2313 if (job_type == JOB_TYPE_TILER && p->framebuffer & MALI_MFBD) {
2314 void* blend_base = (void *) (s + 1);
2315
2316 for (unsigned i = 0; i < fbd_info.rt_count; i++) {
2317 mali_ptr shader = 0;
2318
2319 if (is_bifrost)
2320 shader = pandecode_bifrost_blend(blend_base, job_no, i);
2321 else
2322 shader = pandecode_midgard_blend_mrt(blend_base, job_no, i);
2323
2324 if (shader & ~0xF)
2325 pandecode_blend_shader_disassemble(shader, job_no, job_type, false, gpu_id);
2326
2327 }
2328 }
2329 } else
2330 pandecode_msg("XXX: missing shader descriptor\n");
2331
2332 if (p->viewport) {
2333 struct pandecode_mapped_memory *fmem = pandecode_find_mapped_gpu_mem_containing(p->viewport);
2334 struct mali_viewport *PANDECODE_PTR_VAR(f, fmem, p->viewport);
2335
2336 pandecode_log("struct mali_viewport viewport_%"PRIx64"_%d%s = {\n", p->viewport, job_no, suffix);
2337 pandecode_indent++;
2338
2339 pandecode_prop("clip_minx = %f", f->clip_minx);
2340 pandecode_prop("clip_miny = %f", f->clip_miny);
2341 pandecode_prop("clip_minz = %f", f->clip_minz);
2342 pandecode_prop("clip_maxx = %f", f->clip_maxx);
2343 pandecode_prop("clip_maxy = %f", f->clip_maxy);
2344 pandecode_prop("clip_maxz = %f", f->clip_maxz);
2345
2346 /* Only the higher coordinates are MALI_POSITIVE scaled */
2347
2348 pandecode_prop("viewport0 = { %d, %d }",
2349 f->viewport0[0], f->viewport0[1]);
2350
2351 pandecode_prop("viewport1 = { MALI_POSITIVE(%d), MALI_POSITIVE(%d) }",
2352 f->viewport1[0] + 1, f->viewport1[1] + 1);
2353
2354 pandecode_indent--;
2355 pandecode_log("};\n");
2356 }
2357
2358 unsigned max_attr_index = 0;
2359
2360 if (p->attribute_meta)
2361 max_attr_index = pandecode_attribute_meta(job_no, attribute_count, p, false, suffix);
2362
2363 if (p->attributes) {
2364 attr_mem = pandecode_find_mapped_gpu_mem_containing(p->attributes);
2365 pandecode_attributes(attr_mem, p->attributes, job_no, suffix, max_attr_index, false, job_type);
2366 }
2367
2368 /* Varyings are encoded like attributes but not actually sent; we just
2369 * pass a zero buffer with the right stride/size set, (or whatever)
2370 * since the GPU will write to it itself */
2371
2372 if (p->varying_meta) {
2373 varying_count = pandecode_attribute_meta(job_no, varying_count, p, true, suffix);
2374 }
2375
2376 if (p->varyings) {
2377 attr_mem = pandecode_find_mapped_gpu_mem_containing(p->varyings);
2378
2379 /* Number of descriptors depends on whether there are
2380 * non-internal varyings */
2381
2382 pandecode_attributes(attr_mem, p->varyings, job_no, suffix, varying_count, true, job_type);
2383 }
2384
2385 if (p->uniform_buffers) {
2386 if (uniform_buffer_count)
2387 pandecode_uniform_buffers(p->uniform_buffers, uniform_buffer_count, job_no);
2388 else
2389 pandecode_msg("warn: UBOs specified but not referenced\n");
2390 } else if (uniform_buffer_count)
2391 pandecode_msg("XXX: UBOs referenced but not specified\n");
2392
2393 /* We don't want to actually dump uniforms, but we do need to validate
2394 * that the counts we were given are sane */
2395
2396 if (p->uniforms) {
2397 if (uniform_count)
2398 pandecode_uniforms(p->uniforms, uniform_count);
2399 else
2400 pandecode_msg("warn: Uniforms specified but not referenced\n");
2401 } else if (uniform_count)
2402 pandecode_msg("XXX: Uniforms referenced but not specified\n");
2403
2404 if (p->texture_trampoline) {
2405 struct pandecode_mapped_memory *mmem = pandecode_find_mapped_gpu_mem_containing(p->texture_trampoline);
2406
2407 if (mmem) {
2408 mali_ptr *PANDECODE_PTR_VAR(u, mmem, p->texture_trampoline);
2409
2410 pandecode_log("uint64_t texture_trampoline_%"PRIx64"_%d[] = {\n", p->texture_trampoline, job_no);
2411 pandecode_indent++;
2412
2413 for (int tex = 0; tex < texture_count; ++tex) {
2414 mali_ptr *PANDECODE_PTR_VAR(u, mmem, p->texture_trampoline + tex * sizeof(mali_ptr));
2415 char *a = pointer_as_memory_reference(*u);
2416 pandecode_log("%s,\n", a);
2417 free(a);
2418 }
2419
2420 pandecode_indent--;
2421 pandecode_log("};\n");
2422
2423 /* Now, finally, descend down into the texture descriptor */
2424 for (unsigned tex = 0; tex < texture_count; ++tex) {
2425 mali_ptr *PANDECODE_PTR_VAR(u, mmem, p->texture_trampoline + tex * sizeof(mali_ptr));
2426 struct pandecode_mapped_memory *tmem = pandecode_find_mapped_gpu_mem_containing(*u);
2427 if (tmem)
2428 pandecode_texture(*u, tmem, job_no, tex);
2429 }
2430 }
2431 }
2432
2433 if (p->sampler_descriptor) {
2434 struct pandecode_mapped_memory *smem = pandecode_find_mapped_gpu_mem_containing(p->sampler_descriptor);
2435
2436 if (smem) {
2437 struct mali_sampler_descriptor *s;
2438
2439 mali_ptr d = p->sampler_descriptor;
2440
2441 for (int i = 0; i < sampler_count; ++i) {
2442 s = pandecode_fetch_gpu_mem(smem, d + sizeof(*s) * i, sizeof(*s));
2443
2444 pandecode_log("struct mali_sampler_descriptor sampler_descriptor_%"PRIx64"_%d_%d = {\n", d + sizeof(*s) * i, job_no, i);
2445 pandecode_indent++;
2446
2447 pandecode_log(".filter_mode = ");
2448 pandecode_log_decoded_flags(sampler_flag_info, s->filter_mode);
2449 pandecode_log_cont(",\n");
2450
2451 pandecode_prop("min_lod = FIXED_16(%f)", DECODE_FIXED_16(s->min_lod));
2452 pandecode_prop("max_lod = FIXED_16(%f)", DECODE_FIXED_16(s->max_lod));
2453
2454 if (s->lod_bias)
2455 pandecode_prop("lod_bias = FIXED_16(%f)", DECODE_FIXED_16(s->lod_bias));
2456
2457 pandecode_prop("wrap_s = %s", pandecode_wrap_mode(s->wrap_s));
2458 pandecode_prop("wrap_t = %s", pandecode_wrap_mode(s->wrap_t));
2459 pandecode_prop("wrap_r = %s", pandecode_wrap_mode(s->wrap_r));
2460
2461 pandecode_prop("compare_func = %s", pandecode_func(s->compare_func));
2462
2463 if (s->zero || s->zero2) {
2464 pandecode_msg("XXX: sampler zero tripped\n");
2465 pandecode_prop("zero = 0x%X, 0x%X\n", s->zero, s->zero2);
2466 }
2467
2468 pandecode_prop("seamless_cube_map = %d", s->seamless_cube_map);
2469
2470 pandecode_prop("border_color = { %f, %f, %f, %f }",
2471 s->border_color[0],
2472 s->border_color[1],
2473 s->border_color[2],
2474 s->border_color[3]);
2475
2476 pandecode_indent--;
2477 pandecode_log("};\n");
2478 }
2479 }
2480 }
2481 }
2482
2483 static void
2484 pandecode_vertex_tiler_postfix(const struct mali_vertex_tiler_postfix *p, int job_no, bool is_bifrost)
2485 {
2486 if (p->shader & 0xF)
2487 pandecode_msg("warn: shader tagged %X\n", (unsigned) (p->shader & 0xF));
2488
2489 if (!(p->position_varying || p->occlusion_counter))
2490 return;
2491
2492 pandecode_log(".postfix = {\n");
2493 pandecode_indent++;
2494
2495 MEMORY_PROP(p, position_varying);
2496 MEMORY_PROP(p, occlusion_counter);
2497
2498 pandecode_indent--;
2499 pandecode_log("},\n");
2500 }
2501
2502 static void
2503 pandecode_vertex_only_bfr(struct bifrost_vertex_only *v)
2504 {
2505 pandecode_log_cont("{\n");
2506 pandecode_indent++;
2507
2508 pandecode_prop("unk2 = 0x%x", v->unk2);
2509
2510 if (v->zero0 || v->zero1) {
2511 pandecode_msg("XXX: vertex only zero tripped");
2512 pandecode_prop("zero0 = 0x%" PRIx32, v->zero0);
2513 pandecode_prop("zero1 = 0x%" PRIx64, v->zero1);
2514 }
2515
2516 pandecode_indent--;
2517 pandecode_log("}\n");
2518 }
2519
2520 static void
2521 pandecode_tiler_heap_meta(mali_ptr gpu_va, int job_no)
2522 {
2523
2524 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
2525 const struct bifrost_tiler_heap_meta *PANDECODE_PTR_VAR(h, mem, gpu_va);
2526
2527 pandecode_log("struct mali_tiler_heap_meta tiler_heap_meta_%d = {\n", job_no);
2528 pandecode_indent++;
2529
2530 if (h->zero) {
2531 pandecode_msg("XXX: tiler heap zero tripped\n");
2532 pandecode_prop("zero = 0x%x", h->zero);
2533 }
2534
2535 for (int i = 0; i < 12; i++) {
2536 if (h->zeros[i] != 0) {
2537 pandecode_msg("XXX: tiler heap zero %d tripped, value %x\n",
2538 i, h->zeros[i]);
2539 }
2540 }
2541
2542 pandecode_prop("heap_size = 0x%x", h->heap_size);
2543 MEMORY_PROP(h, tiler_heap_start);
2544 MEMORY_PROP(h, tiler_heap_free);
2545
2546 /* this might point to the beginning of another buffer, when it's
2547 * really the end of the tiler heap buffer, so we have to be careful
2548 * here. but for zero length, we need the same pointer.
2549 */
2550
2551 if (h->tiler_heap_end == h->tiler_heap_start) {
2552 MEMORY_PROP(h, tiler_heap_start);
2553 } else {
2554 char *a = pointer_as_memory_reference(h->tiler_heap_end - 1);
2555 pandecode_prop("tiler_heap_end = %s + 1", a);
2556 free(a);
2557 }
2558
2559 pandecode_indent--;
2560 pandecode_log("};\n");
2561 }
2562
2563 static void
2564 pandecode_tiler_meta(mali_ptr gpu_va, int job_no)
2565 {
2566 struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
2567 const struct bifrost_tiler_meta *PANDECODE_PTR_VAR(t, mem, gpu_va);
2568
2569 pandecode_tiler_heap_meta(t->tiler_heap_meta, job_no);
2570
2571 pandecode_log("struct bifrost_tiler_meta tiler_meta_%d = {\n", job_no);
2572 pandecode_indent++;
2573
2574 if (t->zero0 || t->zero1) {
2575 pandecode_msg("XXX: tiler meta zero tripped\n");
2576 pandecode_prop("zero0 = 0x%" PRIx64, t->zero0);
2577 pandecode_prop("zero1 = 0x%" PRIx64, t->zero1);
2578 }
2579
2580 pandecode_prop("hierarchy_mask = 0x%" PRIx16, t->hierarchy_mask);
2581 pandecode_prop("flags = 0x%" PRIx16, t->flags);
2582
2583 pandecode_prop("width = MALI_POSITIVE(%d)", t->width + 1);
2584 pandecode_prop("height = MALI_POSITIVE(%d)", t->height + 1);
2585
2586 for (int i = 0; i < 12; i++) {
2587 if (t->zeros[i] != 0) {
2588 pandecode_msg("XXX: tiler heap zero %d tripped, value %" PRIx64 "\n",
2589 i, t->zeros[i]);
2590 }
2591 }
2592
2593 pandecode_indent--;
2594 pandecode_log("};\n");
2595 }
2596
2597 static void
2598 pandecode_gl_enables(uint32_t gl_enables, int job_type)
2599 {
2600 pandecode_log(".gl_enables = ");
2601
2602 pandecode_log_decoded_flags(gl_enable_flag_info, gl_enables);
2603
2604 pandecode_log_cont(",\n");
2605 }
2606
2607 static void
2608 pandecode_primitive_size(union midgard_primitive_size u, bool constant)
2609 {
2610 if (u.pointer == 0x0)
2611 return;
2612
2613 pandecode_log(".primitive_size = {\n");
2614 pandecode_indent++;
2615
2616 if (constant) {
2617 pandecode_prop("constant = %f", u.constant);
2618 } else {
2619 MEMORY_PROP((&u), pointer);
2620 }
2621
2622 pandecode_indent--;
2623 pandecode_log("},\n");
2624 }
2625
2626 static void
2627 pandecode_tiler_only_bfr(const struct bifrost_tiler_only *t, int job_no)
2628 {
2629 pandecode_log_cont("{\n");
2630 pandecode_indent++;
2631
2632 /* TODO: gl_PointSize on Bifrost */
2633 pandecode_primitive_size(t->primitive_size, true);
2634
2635 pandecode_gl_enables(t->gl_enables, JOB_TYPE_TILER);
2636
2637 if (t->zero1 || t->zero2 || t->zero3 || t->zero4 || t->zero5
2638 || t->zero6 || t->zero7 || t->zero8) {
2639 pandecode_msg("XXX: tiler only zero tripped\n");
2640 pandecode_prop("zero1 = 0x%" PRIx64, t->zero1);
2641 pandecode_prop("zero2 = 0x%" PRIx64, t->zero2);
2642 pandecode_prop("zero3 = 0x%" PRIx64, t->zero3);
2643 pandecode_prop("zero4 = 0x%" PRIx64, t->zero4);
2644 pandecode_prop("zero5 = 0x%" PRIx64, t->zero5);
2645 pandecode_prop("zero6 = 0x%" PRIx64, t->zero6);
2646 pandecode_prop("zero7 = 0x%" PRIx32, t->zero7);
2647 pandecode_prop("zero8 = 0x%" PRIx64, t->zero8);
2648 }
2649
2650 pandecode_indent--;
2651 pandecode_log("},\n");
2652 }
2653
2654 static int
2655 pandecode_vertex_job_bfr(const struct mali_job_descriptor_header *h,
2656 const struct pandecode_mapped_memory *mem,
2657 mali_ptr payload, int job_no, unsigned gpu_id)
2658 {
2659 struct bifrost_payload_vertex *PANDECODE_PTR_VAR(v, mem, payload);
2660
2661 pandecode_vertex_tiler_postfix_pre(&v->postfix, job_no, h->job_type, "", true, gpu_id);
2662
2663 pandecode_log("struct bifrost_payload_vertex payload_%d = {\n", job_no);
2664 pandecode_indent++;
2665
2666 pandecode_log(".prefix = ");
2667 pandecode_vertex_tiler_prefix(&v->prefix, job_no, false);
2668
2669 pandecode_log(".vertex = ");
2670 pandecode_vertex_only_bfr(&v->vertex);
2671
2672 pandecode_vertex_tiler_postfix(&v->postfix, job_no, true);
2673
2674 pandecode_indent--;
2675 pandecode_log("};\n");
2676
2677 return sizeof(*v);
2678 }
2679
2680 static int
2681 pandecode_tiler_job_bfr(const struct mali_job_descriptor_header *h,
2682 const struct pandecode_mapped_memory *mem,
2683 mali_ptr payload, int job_no, unsigned gpu_id)
2684 {
2685 struct bifrost_payload_tiler *PANDECODE_PTR_VAR(t, mem, payload);
2686
2687 pandecode_vertex_tiler_postfix_pre(&t->postfix, job_no, h->job_type, "", true, gpu_id);
2688 pandecode_tiler_meta(t->tiler.tiler_meta, job_no);
2689
2690 pandecode_log("struct bifrost_payload_tiler payload_%d = {\n", job_no);
2691 pandecode_indent++;
2692
2693 pandecode_log(".prefix = ");
2694 pandecode_vertex_tiler_prefix(&t->prefix, job_no, false);
2695
2696 pandecode_log(".tiler = ");
2697 pandecode_tiler_only_bfr(&t->tiler, job_no);
2698
2699 pandecode_vertex_tiler_postfix(&t->postfix, job_no, true);
2700
2701 pandecode_indent--;
2702 pandecode_log("};\n");
2703
2704 return sizeof(*t);
2705 }
2706
2707 static int
2708 pandecode_vertex_or_tiler_job_mdg(const struct mali_job_descriptor_header *h,
2709 const struct pandecode_mapped_memory *mem,
2710 mali_ptr payload, int job_no, unsigned gpu_id)
2711 {
2712 struct midgard_payload_vertex_tiler *PANDECODE_PTR_VAR(v, mem, payload);
2713
2714 pandecode_vertex_tiler_postfix_pre(&v->postfix, job_no, h->job_type, "", false, gpu_id);
2715
2716 pandecode_log("struct midgard_payload_vertex_tiler payload_%d = {\n", job_no);
2717 pandecode_indent++;
2718
2719 bool has_primitive_pointer = v->prefix.unknown_draw & MALI_DRAW_VARYING_SIZE;
2720 pandecode_primitive_size(v->primitive_size, !has_primitive_pointer);
2721
2722 bool is_graphics = (h->job_type == JOB_TYPE_VERTEX) || (h->job_type == JOB_TYPE_TILER);
2723
2724 pandecode_log(".prefix = ");
2725 pandecode_vertex_tiler_prefix(&v->prefix, job_no, is_graphics);
2726
2727 pandecode_gl_enables(v->gl_enables, h->job_type);
2728
2729 if (v->instance_shift || v->instance_odd) {
2730 pandecode_prop("instance_shift = 0x%d /* %d */",
2731 v->instance_shift, 1 << v->instance_shift);
2732 pandecode_prop("instance_odd = 0x%X /* %d */",
2733 v->instance_odd, (2 * v->instance_odd) + 1);
2734
2735 pandecode_padded_vertices(v->instance_shift, v->instance_odd);
2736 }
2737
2738 if (v->offset_start)
2739 pandecode_prop("offset_start = %d", v->offset_start);
2740
2741 if (v->zero5) {
2742 pandecode_msg("XXX: midgard payload zero tripped\n");
2743 pandecode_prop("zero5 = 0x%" PRIx64, v->zero5);
2744 }
2745
2746 pandecode_vertex_tiler_postfix(&v->postfix, job_no, false);
2747
2748 pandecode_indent--;
2749 pandecode_log("};\n");
2750
2751 return sizeof(*v);
2752 }
2753
2754 static int
2755 pandecode_fragment_job(const struct pandecode_mapped_memory *mem,
2756 mali_ptr payload, int job_no,
2757 bool is_bifrost, unsigned gpu_id)
2758 {
2759 const struct mali_payload_fragment *PANDECODE_PTR_VAR(s, mem, payload);
2760
2761 bool is_mfbd = s->framebuffer & MALI_MFBD;
2762
2763 /* Bifrost theoretically may retain support for SFBD on compute jobs,
2764 * but for graphics workloads with a FRAGMENT payload, use MFBD */
2765
2766 if (!is_mfbd && is_bifrost)
2767 pandecode_msg("XXX: Bifrost fragment must use MFBD\n");
2768
2769 struct pandecode_fbd info;
2770
2771 if (is_mfbd)
2772 info = pandecode_mfbd_bfr(s->framebuffer & FBD_MASK, job_no, true, false);
2773 else
2774 info = pandecode_sfbd(s->framebuffer & FBD_MASK, job_no, true, gpu_id);
2775
2776 /* Compute the tag for the tagged pointer. This contains the type of
2777 * FBD (MFBD/SFBD), and in the case of an MFBD, information about which
2778 * additional structures follow the MFBD header (an extra payload or
2779 * not, as well as a count of render targets) */
2780
2781 unsigned expected_tag = is_mfbd ? MALI_MFBD : 0;
2782
2783 if (is_mfbd) {
2784 if (info.has_extra)
2785 expected_tag |= MALI_MFBD_TAG_EXTRA;
2786
2787 expected_tag |= (MALI_POSITIVE(info.rt_count) << 2);
2788 }
2789
2790 if ((s->min_tile_coord | s->max_tile_coord) & ~(MALI_X_COORD_MASK | MALI_Y_COORD_MASK)) {
2791 pandecode_msg("XXX: unexpected tile coordinate bits\n");
2792 pandecode_prop("min_tile_coord = 0x%X\n", s->min_tile_coord);
2793 pandecode_prop("max_tile_coord = 0x%X\n", s->min_tile_coord);
2794 }
2795
2796 /* Extract tile coordinates */
2797
2798 unsigned min_x = MALI_TILE_COORD_X(s->min_tile_coord) << MALI_TILE_SHIFT;
2799 unsigned min_y = MALI_TILE_COORD_Y(s->min_tile_coord) << MALI_TILE_SHIFT;
2800
2801 unsigned max_x = (MALI_TILE_COORD_X(s->max_tile_coord) + 1) << MALI_TILE_SHIFT;
2802 unsigned max_y = (MALI_TILE_COORD_Y(s->max_tile_coord) + 1) << MALI_TILE_SHIFT;
2803
2804 /* For the max, we also want the floored (rather than ceiled) version for checking */
2805
2806 unsigned max_x_f = (MALI_TILE_COORD_X(s->max_tile_coord)) << MALI_TILE_SHIFT;
2807 unsigned max_y_f = (MALI_TILE_COORD_Y(s->max_tile_coord)) << MALI_TILE_SHIFT;
2808
2809 /* Validate the coordinates are well-ordered */
2810
2811 if (min_x == max_x)
2812 pandecode_msg("XXX: empty X coordinates (%u = %u)\n", min_x, max_x);
2813 else if (min_x > max_x)
2814 pandecode_msg("XXX: misordered X coordinates (%u > %u)\n", min_x, max_x);
2815
2816 if (min_y == max_y)
2817 pandecode_msg("XXX: empty X coordinates (%u = %u)\n", min_x, max_x);
2818 else if (min_y > max_y)
2819 pandecode_msg("XXX: misordered X coordinates (%u > %u)\n", min_x, max_x);
2820
2821 /* Validate the coordinates fit inside the framebuffer. We use floor,
2822 * rather than ceil, for the max coordinates, since the tile
2823 * coordinates for something like an 800x600 framebuffer will actually
2824 * resolve to 800x608, which would otherwise trigger a Y-overflow */
2825
2826 if ((min_x > info.width) || (max_x_f > info.width))
2827 pandecode_msg("XXX: tile coordinates overflow in X direction\n");
2828
2829 if ((min_y > info.height) || (max_y_f > info.height))
2830 pandecode_msg("XXX: tile coordinates overflow in Y direction\n");
2831
2832 /* After validation, we print */
2833
2834 pandecode_log("fragment (%u, %u) ... (%u, %u)\n\n", min_x, min_y, max_x, max_y);
2835
2836 /* The FBD is a tagged pointer */
2837
2838 unsigned tag = (s->framebuffer & ~FBD_MASK);
2839
2840 if (tag != expected_tag)
2841 pandecode_msg("XXX: expected FBD tag %X but got %X\n", expected_tag, tag);
2842
2843 return sizeof(*s);
2844 }
2845
2846 static int job_descriptor_number = 0;
2847
2848 int
2849 pandecode_jc(mali_ptr jc_gpu_va, bool bifrost, unsigned gpu_id)
2850 {
2851 struct mali_job_descriptor_header *h;
2852
2853 int start_number = 0;
2854
2855 bool first = true;
2856
2857 do {
2858 struct pandecode_mapped_memory *mem =
2859 pandecode_find_mapped_gpu_mem_containing(jc_gpu_va);
2860
2861 void *payload;
2862
2863 h = PANDECODE_PTR(mem, jc_gpu_va, struct mali_job_descriptor_header);
2864
2865 /* On Midgard, for 32-bit jobs except for fragment jobs, the
2866 * high 32-bits of the 64-bit pointer are reused to store
2867 * something else.
2868 */
2869 int offset = h->job_descriptor_size == MALI_JOB_32 &&
2870 h->job_type != JOB_TYPE_FRAGMENT ? 4 : 0;
2871 mali_ptr payload_ptr = jc_gpu_va + sizeof(*h) - offset;
2872
2873 payload = pandecode_fetch_gpu_mem(mem, payload_ptr, 256);
2874
2875 int job_no = job_descriptor_number++;
2876
2877 if (first)
2878 start_number = job_no;
2879
2880 pandecode_log("struct mali_job_descriptor_header job_%"PRIx64"_%d = {\n", jc_gpu_va, job_no);
2881 pandecode_indent++;
2882
2883 pandecode_prop("job_type = %s", pandecode_job_type(h->job_type));
2884
2885 if (h->job_descriptor_size)
2886 pandecode_prop("job_descriptor_size = %d", h->job_descriptor_size);
2887
2888 if (h->exception_status && h->exception_status != 0x1)
2889 pandecode_prop("exception_status = %x (source ID: 0x%x access: %s exception: 0x%x)",
2890 h->exception_status,
2891 (h->exception_status >> 16) & 0xFFFF,
2892 pandecode_exception_access((h->exception_status >> 8) & 0x3),
2893 h->exception_status & 0xFF);
2894
2895 if (h->first_incomplete_task)
2896 pandecode_prop("first_incomplete_task = %d", h->first_incomplete_task);
2897
2898 if (h->fault_pointer)
2899 pandecode_prop("fault_pointer = 0x%" PRIx64, h->fault_pointer);
2900
2901 if (h->job_barrier)
2902 pandecode_prop("job_barrier = %d", h->job_barrier);
2903
2904 pandecode_prop("job_index = %d", h->job_index);
2905
2906 if (h->unknown_flags)
2907 pandecode_prop("unknown_flags = %d", h->unknown_flags);
2908
2909 if (h->job_dependency_index_1)
2910 pandecode_prop("job_dependency_index_1 = %d", h->job_dependency_index_1);
2911
2912 if (h->job_dependency_index_2)
2913 pandecode_prop("job_dependency_index_2 = %d", h->job_dependency_index_2);
2914
2915 pandecode_indent--;
2916 pandecode_log("};\n");
2917
2918 /* Do not touch the field yet -- decode the payload first, and
2919 * don't touch that either. This is essential for the uploads
2920 * to occur in sequence and therefore be dynamically allocated
2921 * correctly. Do note the size, however, for that related
2922 * reason. */
2923
2924 switch (h->job_type) {
2925 case JOB_TYPE_WRITE_VALUE: {
2926 struct mali_payload_write_value *s = payload;
2927 pandecode_log("struct mali_payload_write_value payload_%"PRIx64"_%d = {\n", payload_ptr, job_no);
2928 pandecode_indent++;
2929 MEMORY_PROP(s, address);
2930
2931 if (s->value_descriptor != MALI_WRITE_VALUE_ZERO) {
2932 pandecode_msg("XXX: unknown value descriptor\n");
2933 pandecode_prop("value_descriptor = 0x%" PRIX32, s->value_descriptor);
2934 }
2935
2936 if (s->reserved) {
2937 pandecode_msg("XXX: set value tripped\n");
2938 pandecode_prop("reserved = 0x%" PRIX32, s->reserved);
2939 }
2940
2941 pandecode_prop("immediate = 0x%" PRIX64, s->immediate);
2942 pandecode_indent--;
2943 pandecode_log("};\n");
2944
2945 break;
2946 }
2947
2948 case JOB_TYPE_TILER:
2949 case JOB_TYPE_VERTEX:
2950 case JOB_TYPE_COMPUTE:
2951 if (bifrost) {
2952 if (h->job_type == JOB_TYPE_TILER)
2953 pandecode_tiler_job_bfr(h, mem, payload_ptr, job_no, gpu_id);
2954 else
2955 pandecode_vertex_job_bfr(h, mem, payload_ptr, job_no, gpu_id);
2956 } else
2957 pandecode_vertex_or_tiler_job_mdg(h, mem, payload_ptr, job_no, gpu_id);
2958
2959 break;
2960
2961 case JOB_TYPE_FRAGMENT:
2962 pandecode_fragment_job(mem, payload_ptr, job_no, bifrost, gpu_id);
2963 break;
2964
2965 default:
2966 break;
2967 }
2968
2969 /* Handle linkage */
2970
2971 if (!first) {
2972 pandecode_log("((struct mali_job_descriptor_header *) (uintptr_t) job_%d_p)->", job_no - 1);
2973 pandecode_log_cont("next_job = job_%d_p;\n\n", job_no);
2974 }
2975
2976 first = false;
2977
2978 } while ((jc_gpu_va = h->next_job));
2979
2980 return start_number;
2981 }