1 /*
2 * Copyright (c) 2012 Rob Clark <robdclark@gmail.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 #include "ir3.h"
25
26 #include <stdlib.h>
27 #include <stdio.h>
28 #include <string.h>
29 #include <assert.h>
30 #include <stdbool.h>
31 #include <errno.h>
32
33 #include "util/ralloc.h"
34
35 #include "freedreno_util.h"
36 #include "instr-a3xx.h"
37
38 /* simple allocator to carve allocations out of an up-front allocated heap,
39 * so that we can free everything easily in one shot.
40 */
ir3_alloc(struct ir3 * shader,int sz)41 void * ir3_alloc(struct ir3 *shader, int sz)
42 {
43 return rzalloc_size(shader, sz); /* TODO: don't use rzalloc */
44 }
45
ir3_create(struct ir3_compiler * compiler,unsigned nin,unsigned nout)46 struct ir3 * ir3_create(struct ir3_compiler *compiler,
47 unsigned nin, unsigned nout)
48 {
49 struct ir3 *shader = rzalloc(compiler, struct ir3);
50
51 shader->compiler = compiler;
52 shader->ninputs = nin;
53 shader->inputs = ir3_alloc(shader, sizeof(shader->inputs[0]) * nin);
54
55 shader->noutputs = nout;
56 shader->outputs = ir3_alloc(shader, sizeof(shader->outputs[0]) * nout);
57
58 list_inithead(&shader->block_list);
59 list_inithead(&shader->array_list);
60
61 return shader;
62 }
63
ir3_destroy(struct ir3 * shader)64 void ir3_destroy(struct ir3 *shader)
65 {
66 ralloc_free(shader);
67 }
68
69 #define iassert(cond) do { \
70 if (!(cond)) { \
71 assert(cond); \
72 return -1; \
73 } } while (0)
74
reg(struct ir3_register * reg,struct ir3_info * info,uint32_t repeat,uint32_t valid_flags)75 static uint32_t reg(struct ir3_register *reg, struct ir3_info *info,
76 uint32_t repeat, uint32_t valid_flags)
77 {
78 reg_t val = { .dummy32 = 0 };
79
80 if (reg->flags & ~valid_flags) {
81 debug_printf("INVALID FLAGS: %x vs %x\n",
82 reg->flags, valid_flags);
83 }
84
85 if (!(reg->flags & IR3_REG_R))
86 repeat = 0;
87
88 if (reg->flags & IR3_REG_IMMED) {
89 val.iim_val = reg->iim_val;
90 } else {
91 unsigned components;
92 int16_t max;
93
94 if (reg->flags & IR3_REG_RELATIV) {
95 components = reg->size;
96 val.idummy10 = reg->array.offset;
97 max = (reg->array.offset + repeat + components - 1) >> 2;
98 } else {
99 components = util_last_bit(reg->wrmask);
100 val.comp = reg->num & 0x3;
101 val.num = reg->num >> 2;
102 max = (reg->num + repeat + components - 1) >> 2;
103 }
104
105 if (reg->flags & IR3_REG_CONST) {
106 info->max_const = MAX2(info->max_const, max);
107 } else if (val.num == 63) {
108 /* ignore writes to dummy register r63.x */
109 } else if (max < 48) {
110 if (reg->flags & IR3_REG_HALF) {
111 info->max_half_reg = MAX2(info->max_half_reg, max);
112 } else {
113 info->max_reg = MAX2(info->max_reg, max);
114 }
115 }
116 }
117
118 return val.dummy32;
119 }
120
emit_cat0(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)121 static int emit_cat0(struct ir3_instruction *instr, void *ptr,
122 struct ir3_info *info)
123 {
124 instr_cat0_t *cat0 = ptr;
125
126 if (info->gpu_id >= 500) {
127 cat0->a5xx.immed = instr->cat0.immed;
128 } else if (info->gpu_id >= 400) {
129 cat0->a4xx.immed = instr->cat0.immed;
130 } else {
131 cat0->a3xx.immed = instr->cat0.immed;
132 }
133 cat0->repeat = instr->repeat;
134 cat0->ss = !!(instr->flags & IR3_INSTR_SS);
135 cat0->inv = instr->cat0.inv;
136 cat0->comp = instr->cat0.comp;
137 cat0->opc = instr->opc;
138 cat0->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
139 cat0->sync = !!(instr->flags & IR3_INSTR_SY);
140 cat0->opc_cat = 0;
141
142 return 0;
143 }
144
type_flags(type_t type)145 static uint32_t type_flags(type_t type)
146 {
147 return (type_size(type) == 32) ? 0 : IR3_REG_HALF;
148 }
149
emit_cat1(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)150 static int emit_cat1(struct ir3_instruction *instr, void *ptr,
151 struct ir3_info *info)
152 {
153 struct ir3_register *dst = instr->regs[0];
154 struct ir3_register *src = instr->regs[1];
155 instr_cat1_t *cat1 = ptr;
156
157 iassert(instr->regs_count == 2);
158 iassert(!((dst->flags ^ type_flags(instr->cat1.dst_type)) & IR3_REG_HALF));
159 iassert((src->flags & IR3_REG_IMMED) ||
160 !((src->flags ^ type_flags(instr->cat1.src_type)) & IR3_REG_HALF));
161
162 if (src->flags & IR3_REG_IMMED) {
163 cat1->iim_val = src->iim_val;
164 cat1->src_im = 1;
165 } else if (src->flags & IR3_REG_RELATIV) {
166 cat1->off = reg(src, info, instr->repeat,
167 IR3_REG_R | IR3_REG_CONST | IR3_REG_HALF | IR3_REG_RELATIV);
168 cat1->src_rel = 1;
169 cat1->src_rel_c = !!(src->flags & IR3_REG_CONST);
170 } else {
171 cat1->src = reg(src, info, instr->repeat,
172 IR3_REG_R | IR3_REG_CONST | IR3_REG_HALF);
173 cat1->src_c = !!(src->flags & IR3_REG_CONST);
174 }
175
176 cat1->dst = reg(dst, info, instr->repeat,
177 IR3_REG_RELATIV | IR3_REG_EVEN |
178 IR3_REG_R | IR3_REG_POS_INF | IR3_REG_HALF);
179 cat1->repeat = instr->repeat;
180 cat1->src_r = !!(src->flags & IR3_REG_R);
181 cat1->ss = !!(instr->flags & IR3_INSTR_SS);
182 cat1->ul = !!(instr->flags & IR3_INSTR_UL);
183 cat1->dst_type = instr->cat1.dst_type;
184 cat1->dst_rel = !!(dst->flags & IR3_REG_RELATIV);
185 cat1->src_type = instr->cat1.src_type;
186 cat1->even = !!(dst->flags & IR3_REG_EVEN);
187 cat1->pos_inf = !!(dst->flags & IR3_REG_POS_INF);
188 cat1->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
189 cat1->sync = !!(instr->flags & IR3_INSTR_SY);
190 cat1->opc_cat = 1;
191
192 return 0;
193 }
194
emit_cat2(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)195 static int emit_cat2(struct ir3_instruction *instr, void *ptr,
196 struct ir3_info *info)
197 {
198 struct ir3_register *dst = instr->regs[0];
199 struct ir3_register *src1 = instr->regs[1];
200 struct ir3_register *src2 = instr->regs[2];
201 instr_cat2_t *cat2 = ptr;
202 unsigned absneg = ir3_cat2_absneg(instr->opc);
203
204 iassert((instr->regs_count == 2) || (instr->regs_count == 3));
205
206 if (src1->flags & IR3_REG_RELATIV) {
207 iassert(src1->array.offset < (1 << 10));
208 cat2->rel1.src1 = reg(src1, info, instr->repeat,
209 IR3_REG_RELATIV | IR3_REG_CONST | IR3_REG_R |
210 IR3_REG_HALF | absneg);
211 cat2->rel1.src1_c = !!(src1->flags & IR3_REG_CONST);
212 cat2->rel1.src1_rel = 1;
213 } else if (src1->flags & IR3_REG_CONST) {
214 iassert(src1->num < (1 << 12));
215 cat2->c1.src1 = reg(src1, info, instr->repeat,
216 IR3_REG_CONST | IR3_REG_R | IR3_REG_HALF);
217 cat2->c1.src1_c = 1;
218 } else {
219 iassert(src1->num < (1 << 11));
220 cat2->src1 = reg(src1, info, instr->repeat,
221 IR3_REG_IMMED | IR3_REG_R | IR3_REG_HALF |
222 absneg);
223 }
224 cat2->src1_im = !!(src1->flags & IR3_REG_IMMED);
225 cat2->src1_neg = !!(src1->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT));
226 cat2->src1_abs = !!(src1->flags & (IR3_REG_FABS | IR3_REG_SABS));
227 cat2->src1_r = !!(src1->flags & IR3_REG_R);
228
229 if (src2) {
230 iassert((src2->flags & IR3_REG_IMMED) ||
231 !((src1->flags ^ src2->flags) & IR3_REG_HALF));
232
233 if (src2->flags & IR3_REG_RELATIV) {
234 iassert(src2->array.offset < (1 << 10));
235 cat2->rel2.src2 = reg(src2, info, instr->repeat,
236 IR3_REG_RELATIV | IR3_REG_CONST | IR3_REG_R |
237 IR3_REG_HALF | absneg);
238 cat2->rel2.src2_c = !!(src2->flags & IR3_REG_CONST);
239 cat2->rel2.src2_rel = 1;
240 } else if (src2->flags & IR3_REG_CONST) {
241 iassert(src2->num < (1 << 12));
242 cat2->c2.src2 = reg(src2, info, instr->repeat,
243 IR3_REG_CONST | IR3_REG_R | IR3_REG_HALF);
244 cat2->c2.src2_c = 1;
245 } else {
246 iassert(src2->num < (1 << 11));
247 cat2->src2 = reg(src2, info, instr->repeat,
248 IR3_REG_IMMED | IR3_REG_R | IR3_REG_HALF |
249 absneg);
250 }
251
252 cat2->src2_im = !!(src2->flags & IR3_REG_IMMED);
253 cat2->src2_neg = !!(src2->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT));
254 cat2->src2_abs = !!(src2->flags & (IR3_REG_FABS | IR3_REG_SABS));
255 cat2->src2_r = !!(src2->flags & IR3_REG_R);
256 }
257
258 cat2->dst = reg(dst, info, instr->repeat,
259 IR3_REG_R | IR3_REG_EI | IR3_REG_HALF);
260 cat2->repeat = instr->repeat;
261 cat2->ss = !!(instr->flags & IR3_INSTR_SS);
262 cat2->ul = !!(instr->flags & IR3_INSTR_UL);
263 cat2->dst_half = !!((src1->flags ^ dst->flags) & IR3_REG_HALF);
264 cat2->ei = !!(dst->flags & IR3_REG_EI);
265 cat2->cond = instr->cat2.condition;
266 cat2->full = ! (src1->flags & IR3_REG_HALF);
267 cat2->opc = instr->opc;
268 cat2->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
269 cat2->sync = !!(instr->flags & IR3_INSTR_SY);
270 cat2->opc_cat = 2;
271
272 return 0;
273 }
274
emit_cat3(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)275 static int emit_cat3(struct ir3_instruction *instr, void *ptr,
276 struct ir3_info *info)
277 {
278 struct ir3_register *dst = instr->regs[0];
279 struct ir3_register *src1 = instr->regs[1];
280 struct ir3_register *src2 = instr->regs[2];
281 struct ir3_register *src3 = instr->regs[3];
282 unsigned absneg = ir3_cat3_absneg(instr->opc);
283 instr_cat3_t *cat3 = ptr;
284 uint32_t src_flags = 0;
285
286 switch (instr->opc) {
287 case OPC_MAD_F16:
288 case OPC_MAD_U16:
289 case OPC_MAD_S16:
290 case OPC_SEL_B16:
291 case OPC_SEL_S16:
292 case OPC_SEL_F16:
293 case OPC_SAD_S16:
294 case OPC_SAD_S32: // really??
295 src_flags |= IR3_REG_HALF;
296 break;
297 default:
298 break;
299 }
300
301 iassert(instr->regs_count == 4);
302 iassert(!((src1->flags ^ src_flags) & IR3_REG_HALF));
303 iassert(!((src2->flags ^ src_flags) & IR3_REG_HALF));
304 iassert(!((src3->flags ^ src_flags) & IR3_REG_HALF));
305
306 if (src1->flags & IR3_REG_RELATIV) {
307 iassert(src1->array.offset < (1 << 10));
308 cat3->rel1.src1 = reg(src1, info, instr->repeat,
309 IR3_REG_RELATIV | IR3_REG_CONST | IR3_REG_R |
310 IR3_REG_HALF | absneg);
311 cat3->rel1.src1_c = !!(src1->flags & IR3_REG_CONST);
312 cat3->rel1.src1_rel = 1;
313 } else if (src1->flags & IR3_REG_CONST) {
314 iassert(src1->num < (1 << 12));
315 cat3->c1.src1 = reg(src1, info, instr->repeat,
316 IR3_REG_CONST | IR3_REG_R | IR3_REG_HALF);
317 cat3->c1.src1_c = 1;
318 } else {
319 iassert(src1->num < (1 << 11));
320 cat3->src1 = reg(src1, info, instr->repeat,
321 IR3_REG_R | IR3_REG_HALF | absneg);
322 }
323
324 cat3->src1_neg = !!(src1->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT));
325 cat3->src1_r = !!(src1->flags & IR3_REG_R);
326
327 cat3->src2 = reg(src2, info, instr->repeat,
328 IR3_REG_CONST | IR3_REG_R | IR3_REG_HALF | absneg);
329 cat3->src2_c = !!(src2->flags & IR3_REG_CONST);
330 cat3->src2_neg = !!(src2->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT));
331 cat3->src2_r = !!(src2->flags & IR3_REG_R);
332
333
334 if (src3->flags & IR3_REG_RELATIV) {
335 iassert(src3->array.offset < (1 << 10));
336 cat3->rel2.src3 = reg(src3, info, instr->repeat,
337 IR3_REG_RELATIV | IR3_REG_CONST | IR3_REG_R |
338 IR3_REG_HALF | absneg);
339 cat3->rel2.src3_c = !!(src3->flags & IR3_REG_CONST);
340 cat3->rel2.src3_rel = 1;
341 } else if (src3->flags & IR3_REG_CONST) {
342 iassert(src3->num < (1 << 12));
343 cat3->c2.src3 = reg(src3, info, instr->repeat,
344 IR3_REG_CONST | IR3_REG_R | IR3_REG_HALF);
345 cat3->c2.src3_c = 1;
346 } else {
347 iassert(src3->num < (1 << 11));
348 cat3->src3 = reg(src3, info, instr->repeat,
349 IR3_REG_R | IR3_REG_HALF | absneg);
350 }
351
352 cat3->src3_neg = !!(src3->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT));
353 cat3->src3_r = !!(src3->flags & IR3_REG_R);
354
355 cat3->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
356 cat3->repeat = instr->repeat;
357 cat3->ss = !!(instr->flags & IR3_INSTR_SS);
358 cat3->ul = !!(instr->flags & IR3_INSTR_UL);
359 cat3->dst_half = !!((src_flags ^ dst->flags) & IR3_REG_HALF);
360 cat3->opc = instr->opc;
361 cat3->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
362 cat3->sync = !!(instr->flags & IR3_INSTR_SY);
363 cat3->opc_cat = 3;
364
365 return 0;
366 }
367
emit_cat4(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)368 static int emit_cat4(struct ir3_instruction *instr, void *ptr,
369 struct ir3_info *info)
370 {
371 struct ir3_register *dst = instr->regs[0];
372 struct ir3_register *src = instr->regs[1];
373 instr_cat4_t *cat4 = ptr;
374
375 iassert(instr->regs_count == 2);
376
377 if (src->flags & IR3_REG_RELATIV) {
378 iassert(src->array.offset < (1 << 10));
379 cat4->rel.src = reg(src, info, instr->repeat,
380 IR3_REG_RELATIV | IR3_REG_CONST | IR3_REG_FNEG |
381 IR3_REG_FABS | IR3_REG_R | IR3_REG_HALF);
382 cat4->rel.src_c = !!(src->flags & IR3_REG_CONST);
383 cat4->rel.src_rel = 1;
384 } else if (src->flags & IR3_REG_CONST) {
385 iassert(src->num < (1 << 12));
386 cat4->c.src = reg(src, info, instr->repeat,
387 IR3_REG_CONST | IR3_REG_FNEG | IR3_REG_FABS |
388 IR3_REG_R | IR3_REG_HALF);
389 cat4->c.src_c = 1;
390 } else {
391 iassert(src->num < (1 << 11));
392 cat4->src = reg(src, info, instr->repeat,
393 IR3_REG_IMMED | IR3_REG_FNEG | IR3_REG_FABS |
394 IR3_REG_R | IR3_REG_HALF);
395 }
396
397 cat4->src_im = !!(src->flags & IR3_REG_IMMED);
398 cat4->src_neg = !!(src->flags & IR3_REG_FNEG);
399 cat4->src_abs = !!(src->flags & IR3_REG_FABS);
400 cat4->src_r = !!(src->flags & IR3_REG_R);
401
402 cat4->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
403 cat4->repeat = instr->repeat;
404 cat4->ss = !!(instr->flags & IR3_INSTR_SS);
405 cat4->ul = !!(instr->flags & IR3_INSTR_UL);
406 cat4->dst_half = !!((src->flags ^ dst->flags) & IR3_REG_HALF);
407 cat4->full = ! (src->flags & IR3_REG_HALF);
408 cat4->opc = instr->opc;
409 cat4->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
410 cat4->sync = !!(instr->flags & IR3_INSTR_SY);
411 cat4->opc_cat = 4;
412
413 return 0;
414 }
415
emit_cat5(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)416 static int emit_cat5(struct ir3_instruction *instr, void *ptr,
417 struct ir3_info *info)
418 {
419 struct ir3_register *dst = instr->regs[0];
420 struct ir3_register *src1 = instr->regs[1];
421 struct ir3_register *src2 = instr->regs[2];
422 struct ir3_register *src3 = instr->regs[3];
423 instr_cat5_t *cat5 = ptr;
424
425 iassert(!((dst->flags ^ type_flags(instr->cat5.type)) & IR3_REG_HALF));
426
427 assume(src1 || !src2);
428 assume(src2 || !src3);
429
430 if (src1) {
431 cat5->full = ! (src1->flags & IR3_REG_HALF);
432 cat5->src1 = reg(src1, info, instr->repeat, IR3_REG_HALF);
433 }
434
435 if (instr->flags & IR3_INSTR_S2EN) {
436 if (src2) {
437 iassert(!((src1->flags ^ src2->flags) & IR3_REG_HALF));
438 cat5->s2en.src2 = reg(src2, info, instr->repeat, IR3_REG_HALF);
439 }
440 if (src3) {
441 iassert(src3->flags & IR3_REG_HALF);
442 cat5->s2en.src3 = reg(src3, info, instr->repeat, IR3_REG_HALF);
443 }
444 iassert(!(instr->cat5.samp | instr->cat5.tex));
445 } else {
446 iassert(!src3);
447 if (src2) {
448 iassert(!((src1->flags ^ src2->flags) & IR3_REG_HALF));
449 cat5->norm.src2 = reg(src2, info, instr->repeat, IR3_REG_HALF);
450 }
451 cat5->norm.samp = instr->cat5.samp;
452 cat5->norm.tex = instr->cat5.tex;
453 }
454
455 cat5->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
456 cat5->wrmask = dst->wrmask;
457 cat5->type = instr->cat5.type;
458 cat5->is_3d = !!(instr->flags & IR3_INSTR_3D);
459 cat5->is_a = !!(instr->flags & IR3_INSTR_A);
460 cat5->is_s = !!(instr->flags & IR3_INSTR_S);
461 cat5->is_s2en = !!(instr->flags & IR3_INSTR_S2EN);
462 cat5->is_o = !!(instr->flags & IR3_INSTR_O);
463 cat5->is_p = !!(instr->flags & IR3_INSTR_P);
464 cat5->opc = instr->opc;
465 cat5->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
466 cat5->sync = !!(instr->flags & IR3_INSTR_SY);
467 cat5->opc_cat = 5;
468
469 return 0;
470 }
471
emit_cat6(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)472 static int emit_cat6(struct ir3_instruction *instr, void *ptr,
473 struct ir3_info *info)
474 {
475 struct ir3_register *dst, *src1, *src2;
476 instr_cat6_t *cat6 = ptr;
477
478 cat6->type = instr->cat6.type;
479 cat6->opc = instr->opc;
480 cat6->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
481 cat6->sync = !!(instr->flags & IR3_INSTR_SY);
482 cat6->g = !!(instr->flags & IR3_INSTR_G);
483 cat6->opc_cat = 6;
484
485 /* the "dst" for a store instruction is (from the perspective
486 * of data flow in the shader, ie. register use/def, etc) in
487 * fact a register that is read by the instruction, rather
488 * than written:
489 */
490 if (is_store(instr)) {
491 iassert(instr->regs_count >= 3);
492
493 dst = instr->regs[1];
494 src1 = instr->regs[2];
495 src2 = (instr->regs_count >= 4) ? instr->regs[3] : NULL;
496 } else {
497 iassert(instr->regs_count >= 2);
498
499 dst = instr->regs[0];
500 src1 = instr->regs[1];
501 src2 = (instr->regs_count >= 3) ? instr->regs[2] : NULL;
502 }
503
504 /* TODO we need a more comprehensive list about which instructions
505 * can be encoded which way. Or possibly use IR3_INSTR_0 flag to
506 * indicate to use the src_off encoding even if offset is zero
507 * (but then what to do about dst_off?)
508 */
509 if (is_atomic(instr->opc)) {
510 instr_cat6ldgb_t *ldgb = ptr;
511
512 /* maybe these two bits both determine the instruction encoding? */
513 cat6->src_off = false;
514
515 ldgb->d = instr->cat6.d - 1;
516 ldgb->typed = instr->cat6.typed;
517 ldgb->type_size = instr->cat6.iim_val - 1;
518
519 ldgb->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
520
521 if (ldgb->g) {
522 struct ir3_register *src3 = instr->regs[3];
523 struct ir3_register *src4 = instr->regs[4];
524
525 /* first src is src_ssbo: */
526 iassert(src1->flags & IR3_REG_IMMED);
527 ldgb->src_ssbo = src1->uim_val;
528
529 ldgb->src1 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
530 ldgb->src1_im = !!(src2->flags & IR3_REG_IMMED);
531 ldgb->src2 = reg(src3, info, instr->repeat, IR3_REG_IMMED);
532 ldgb->src2_im = !!(src3->flags & IR3_REG_IMMED);
533
534 ldgb->src3 = reg(src4, info, instr->repeat, 0);
535 ldgb->pad0 = 0x1;
536 ldgb->pad3 = 0x1;
537 } else {
538 ldgb->src1 = reg(src1, info, instr->repeat, IR3_REG_IMMED);
539 ldgb->src1_im = !!(src1->flags & IR3_REG_IMMED);
540 ldgb->src2 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
541 ldgb->src2_im = !!(src2->flags & IR3_REG_IMMED);
542 ldgb->pad0 = 0x1;
543 ldgb->pad3 = 0x0;
544 }
545
546 return 0;
547 } else if (instr->opc == OPC_LDGB) {
548 struct ir3_register *src3 = instr->regs[3];
549 instr_cat6ldgb_t *ldgb = ptr;
550
551 /* maybe these two bits both determine the instruction encoding? */
552 cat6->src_off = false;
553
554 ldgb->d = instr->cat6.d - 1;
555 ldgb->typed = instr->cat6.typed;
556 ldgb->type_size = instr->cat6.iim_val - 1;
557
558 ldgb->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
559
560 /* first src is src_ssbo: */
561 iassert(src1->flags & IR3_REG_IMMED);
562 ldgb->src_ssbo = src1->uim_val;
563
564 /* then next two are src1/src2: */
565 ldgb->src1 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
566 ldgb->src1_im = !!(src2->flags & IR3_REG_IMMED);
567 ldgb->src2 = reg(src3, info, instr->repeat, IR3_REG_IMMED);
568 ldgb->src2_im = !!(src3->flags & IR3_REG_IMMED);
569
570 ldgb->pad0 = 0x0;
571 ldgb->pad3 = 0x1;
572
573 return 0;
574 } else if (instr->opc == OPC_RESINFO) {
575 instr_cat6ldgb_t *ldgb = ptr;
576
577 ldgb->d = instr->cat6.d - 1;
578
579 ldgb->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
580
581 /* first src is src_ssbo: */
582 iassert(src1->flags & IR3_REG_IMMED);
583 ldgb->src_ssbo = src1->uim_val;
584
585 return 0;
586 } else if ((instr->opc == OPC_STGB) || (instr->opc == OPC_STIB)) {
587 struct ir3_register *src3 = instr->regs[4];
588 instr_cat6stgb_t *stgb = ptr;
589
590 /* maybe these two bits both determine the instruction encoding? */
591 cat6->src_off = true;
592 stgb->pad3 = 0x2;
593
594 stgb->d = instr->cat6.d - 1;
595 stgb->typed = instr->cat6.typed;
596 stgb->type_size = instr->cat6.iim_val - 1;
597
598 /* first src is dst_ssbo: */
599 iassert(dst->flags & IR3_REG_IMMED);
600 stgb->dst_ssbo = dst->uim_val;
601
602 /* then src1/src2/src3: */
603 stgb->src1 = reg(src1, info, instr->repeat, 0);
604 stgb->src2 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
605 stgb->src2_im = !!(src2->flags & IR3_REG_IMMED);
606 stgb->src3 = reg(src3, info, instr->repeat, IR3_REG_IMMED);
607 stgb->src3_im = !!(src3->flags & IR3_REG_IMMED);
608
609 return 0;
610 } else if (instr->cat6.src_offset || (instr->opc == OPC_LDG) ||
611 (instr->opc == OPC_LDL)) {
612 instr_cat6a_t *cat6a = ptr;
613
614 cat6->src_off = true;
615
616 cat6a->src1 = reg(src1, info, instr->repeat, IR3_REG_IMMED);
617 cat6a->src1_im = !!(src1->flags & IR3_REG_IMMED);
618 if (src2) {
619 cat6a->src2 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
620 cat6a->src2_im = !!(src2->flags & IR3_REG_IMMED);
621 }
622 cat6a->off = instr->cat6.src_offset;
623 } else {
624 instr_cat6b_t *cat6b = ptr;
625
626 cat6->src_off = false;
627
628 cat6b->src1 = reg(src1, info, instr->repeat, IR3_REG_IMMED);
629 cat6b->src1_im = !!(src1->flags & IR3_REG_IMMED);
630 if (src2) {
631 cat6b->src2 = reg(src2, info, instr->repeat, IR3_REG_IMMED);
632 cat6b->src2_im = !!(src2->flags & IR3_REG_IMMED);
633 }
634 }
635
636 if (instr->cat6.dst_offset || (instr->opc == OPC_STG) ||
637 (instr->opc == OPC_STL)) {
638 instr_cat6c_t *cat6c = ptr;
639 cat6->dst_off = true;
640 cat6c->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
641 cat6c->off = instr->cat6.dst_offset;
642 } else {
643 instr_cat6d_t *cat6d = ptr;
644 cat6->dst_off = false;
645 cat6d->dst = reg(dst, info, instr->repeat, IR3_REG_R | IR3_REG_HALF);
646 }
647
648 return 0;
649 }
650
emit_cat7(struct ir3_instruction * instr,void * ptr,struct ir3_info * info)651 static int emit_cat7(struct ir3_instruction *instr, void *ptr,
652 struct ir3_info *info)
653 {
654 instr_cat7_t *cat7 = ptr;
655
656 cat7->ss = !!(instr->flags & IR3_INSTR_SS);
657 cat7->w = instr->cat7.w;
658 cat7->r = instr->cat7.r;
659 cat7->l = instr->cat7.l;
660 cat7->g = instr->cat7.g;
661 cat7->opc = instr->opc;
662 cat7->jmp_tgt = !!(instr->flags & IR3_INSTR_JP);
663 cat7->sync = !!(instr->flags & IR3_INSTR_SY);
664 cat7->opc_cat = 7;
665
666 return 0;
667 }
668
669 static int (*emit[])(struct ir3_instruction *instr, void *ptr,
670 struct ir3_info *info) = {
671 emit_cat0, emit_cat1, emit_cat2, emit_cat3, emit_cat4, emit_cat5, emit_cat6,
672 emit_cat7,
673 };
674
ir3_assemble(struct ir3 * shader,struct ir3_info * info,uint32_t gpu_id)675 void * ir3_assemble(struct ir3 *shader, struct ir3_info *info,
676 uint32_t gpu_id)
677 {
678 uint32_t *ptr, *dwords;
679
680 info->gpu_id = gpu_id;
681 info->max_reg = -1;
682 info->max_half_reg = -1;
683 info->max_const = -1;
684 info->instrs_count = 0;
685 info->sizedwords = 0;
686
687 list_for_each_entry (struct ir3_block, block, &shader->block_list, node) {
688 list_for_each_entry (struct ir3_instruction, instr, &block->instr_list, node) {
689 info->sizedwords += 2;
690 }
691 }
692
693 /* need an integer number of instruction "groups" (sets of 16
694 * instructions on a4xx or sets of 4 instructions on a3xx),
695 * so pad out w/ NOPs if needed: (NOTE each instruction is 64bits)
696 */
697 if (gpu_id >= 400) {
698 info->sizedwords = align(info->sizedwords, 16 * 2);
699 } else {
700 info->sizedwords = align(info->sizedwords, 4 * 2);
701 }
702
703 ptr = dwords = calloc(4, info->sizedwords);
704
705 list_for_each_entry (struct ir3_block, block, &shader->block_list, node) {
706 list_for_each_entry (struct ir3_instruction, instr, &block->instr_list, node) {
707 int ret = emit[opc_cat(instr->opc)](instr, dwords, info);
708 if (ret)
709 goto fail;
710 info->instrs_count += 1 + instr->repeat;
711 dwords += 2;
712 }
713 }
714
715 return ptr;
716
717 fail:
718 free(ptr);
719 return NULL;
720 }
721
reg_create(struct ir3 * shader,int num,int flags)722 static struct ir3_register * reg_create(struct ir3 *shader,
723 int num, int flags)
724 {
725 struct ir3_register *reg =
726 ir3_alloc(shader, sizeof(struct ir3_register));
727 reg->wrmask = 1;
728 reg->flags = flags;
729 reg->num = num;
730 return reg;
731 }
732
insert_instr(struct ir3_block * block,struct ir3_instruction * instr)733 static void insert_instr(struct ir3_block *block,
734 struct ir3_instruction *instr)
735 {
736 struct ir3 *shader = block->shader;
737 #ifdef DEBUG
738 static uint32_t serialno = 0;
739 instr->serialno = ++serialno;
740 #endif
741 list_addtail(&instr->node, &block->instr_list);
742
743 if (is_input(instr))
744 array_insert(shader, shader->baryfs, instr);
745 }
746
ir3_block_create(struct ir3 * shader)747 struct ir3_block * ir3_block_create(struct ir3 *shader)
748 {
749 struct ir3_block *block = ir3_alloc(shader, sizeof(*block));
750 #ifdef DEBUG
751 static uint32_t serialno = 0;
752 block->serialno = ++serialno;
753 #endif
754 block->shader = shader;
755 list_inithead(&block->node);
756 list_inithead(&block->instr_list);
757 return block;
758 }
759
instr_create(struct ir3_block * block,int nreg)760 static struct ir3_instruction *instr_create(struct ir3_block *block, int nreg)
761 {
762 struct ir3_instruction *instr;
763 unsigned sz = sizeof(*instr) + (nreg * sizeof(instr->regs[0]));
764 char *ptr = ir3_alloc(block->shader, sz);
765
766 instr = (struct ir3_instruction *)ptr;
767 ptr += sizeof(*instr);
768 instr->regs = (struct ir3_register **)ptr;
769
770 #ifdef DEBUG
771 instr->regs_max = nreg;
772 #endif
773
774 return instr;
775 }
776
ir3_instr_create2(struct ir3_block * block,opc_t opc,int nreg)777 struct ir3_instruction * ir3_instr_create2(struct ir3_block *block,
778 opc_t opc, int nreg)
779 {
780 struct ir3_instruction *instr = instr_create(block, nreg);
781 instr->block = block;
782 instr->opc = opc;
783 insert_instr(block, instr);
784 return instr;
785 }
786
ir3_instr_create(struct ir3_block * block,opc_t opc)787 struct ir3_instruction * ir3_instr_create(struct ir3_block *block, opc_t opc)
788 {
789 /* NOTE: we could be slightly more clever, at least for non-meta,
790 * and choose # of regs based on category.
791 */
792 return ir3_instr_create2(block, opc, 4);
793 }
794
ir3_instr_clone(struct ir3_instruction * instr)795 struct ir3_instruction * ir3_instr_clone(struct ir3_instruction *instr)
796 {
797 struct ir3_instruction *new_instr = instr_create(instr->block,
798 instr->regs_count);
799 struct ir3_register **regs;
800 unsigned i;
801
802 regs = new_instr->regs;
803 *new_instr = *instr;
804 new_instr->regs = regs;
805
806 insert_instr(instr->block, new_instr);
807
808 /* clone registers: */
809 new_instr->regs_count = 0;
810 for (i = 0; i < instr->regs_count; i++) {
811 struct ir3_register *reg = instr->regs[i];
812 struct ir3_register *new_reg =
813 ir3_reg_create(new_instr, reg->num, reg->flags);
814 *new_reg = *reg;
815 }
816
817 return new_instr;
818 }
819
820 /* Add a false dependency to instruction, to ensure it is scheduled first: */
ir3_instr_add_dep(struct ir3_instruction * instr,struct ir3_instruction * dep)821 void ir3_instr_add_dep(struct ir3_instruction *instr, struct ir3_instruction *dep)
822 {
823 array_insert(instr, instr->deps, dep);
824 }
825
ir3_reg_create(struct ir3_instruction * instr,int num,int flags)826 struct ir3_register * ir3_reg_create(struct ir3_instruction *instr,
827 int num, int flags)
828 {
829 struct ir3 *shader = instr->block->shader;
830 struct ir3_register *reg = reg_create(shader, num, flags);
831 #ifdef DEBUG
832 debug_assert(instr->regs_count < instr->regs_max);
833 #endif
834 instr->regs[instr->regs_count++] = reg;
835 return reg;
836 }
837
ir3_reg_clone(struct ir3 * shader,struct ir3_register * reg)838 struct ir3_register * ir3_reg_clone(struct ir3 *shader,
839 struct ir3_register *reg)
840 {
841 struct ir3_register *new_reg = reg_create(shader, 0, 0);
842 *new_reg = *reg;
843 return new_reg;
844 }
845
846 void
ir3_instr_set_address(struct ir3_instruction * instr,struct ir3_instruction * addr)847 ir3_instr_set_address(struct ir3_instruction *instr,
848 struct ir3_instruction *addr)
849 {
850 if (instr->address != addr) {
851 struct ir3 *ir = instr->block->shader;
852 instr->address = addr;
853 array_insert(ir, ir->indirects, instr);
854 }
855 }
856
857 void
ir3_block_clear_mark(struct ir3_block * block)858 ir3_block_clear_mark(struct ir3_block *block)
859 {
860 list_for_each_entry (struct ir3_instruction, instr, &block->instr_list, node)
861 instr->flags &= ~IR3_INSTR_MARK;
862 }
863
864 void
ir3_clear_mark(struct ir3 * ir)865 ir3_clear_mark(struct ir3 *ir)
866 {
867 list_for_each_entry (struct ir3_block, block, &ir->block_list, node) {
868 ir3_block_clear_mark(block);
869 }
870 }
871
872 /* note: this will destroy instr->depth, don't do it until after sched! */
873 unsigned
ir3_count_instructions(struct ir3 * ir)874 ir3_count_instructions(struct ir3 *ir)
875 {
876 unsigned cnt = 0;
877 list_for_each_entry (struct ir3_block, block, &ir->block_list, node) {
878 list_for_each_entry (struct ir3_instruction, instr, &block->instr_list, node) {
879 instr->ip = cnt++;
880 }
881 block->start_ip = list_first_entry(&block->instr_list, struct ir3_instruction, node)->ip;
882 block->end_ip = list_last_entry(&block->instr_list, struct ir3_instruction, node)->ip;
883 }
884 return cnt;
885 }
886
887 struct ir3_array *
ir3_lookup_array(struct ir3 * ir,unsigned id)888 ir3_lookup_array(struct ir3 *ir, unsigned id)
889 {
890 list_for_each_entry (struct ir3_array, arr, &ir->array_list, node)
891 if (arr->id == id)
892 return arr;
893 return NULL;
894 }
895