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7065cfe59c76e74e48ea7e0070e442ea73e7ff34
[mesa.git] / src / gallium / drivers / freedreno / a5xx / fd5_program.c
1 /*
2 * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
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 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #include "pipe/p_state.h"
28 #include "util/u_string.h"
29 #include "util/u_memory.h"
30 #include "util/u_inlines.h"
31 #include "util/format/u_format.h"
32 #include "util/bitset.h"
33
34 #include "freedreno_program.h"
35
36 #include "fd5_program.h"
37 #include "fd5_emit.h"
38 #include "fd5_texture.h"
39 #include "fd5_format.h"
40
41 #include "ir3_cache.h"
42
43 void
44 fd5_emit_shader(struct fd_ringbuffer *ring, const struct ir3_shader_variant *so)
45 {
46 const struct ir3_info *si = &so->info;
47 enum a4xx_state_block sb = fd4_stage2shadersb(so->type);
48 enum a4xx_state_src src;
49 uint32_t i, sz, *bin;
50
51 if (fd_mesa_debug & FD_DBG_DIRECT) {
52 sz = si->sizedwords;
53 src = SS4_DIRECT;
54 bin = fd_bo_map(so->bo);
55 } else {
56 sz = 0;
57 src = SS4_INDIRECT;
58 bin = NULL;
59 }
60
61 OUT_PKT7(ring, CP_LOAD_STATE4, 3 + sz);
62 OUT_RING(ring, CP_LOAD_STATE4_0_DST_OFF(0) |
63 CP_LOAD_STATE4_0_STATE_SRC(src) |
64 CP_LOAD_STATE4_0_STATE_BLOCK(sb) |
65 CP_LOAD_STATE4_0_NUM_UNIT(so->instrlen));
66 if (bin) {
67 OUT_RING(ring, CP_LOAD_STATE4_1_EXT_SRC_ADDR(0) |
68 CP_LOAD_STATE4_1_STATE_TYPE(ST4_SHADER));
69 OUT_RING(ring, CP_LOAD_STATE4_2_EXT_SRC_ADDR_HI(0));
70 } else {
71 OUT_RELOC(ring, so->bo, 0,
72 CP_LOAD_STATE4_1_STATE_TYPE(ST4_SHADER), 0);
73 }
74
75 /* for how clever coverity is, it is sometimes rather dull, and
76 * doesn't realize that the only case where bin==NULL, sz==0:
77 */
78 assume(bin || (sz == 0));
79
80 for (i = 0; i < sz; i++) {
81 OUT_RING(ring, bin[i]);
82 }
83 }
84
85 /* Add any missing varyings needed for stream-out. Otherwise varyings not
86 * used by fragment shader will be stripped out.
87 */
88 static void
89 link_stream_out(struct ir3_shader_linkage *l, const struct ir3_shader_variant *v)
90 {
91 const struct ir3_stream_output_info *strmout = &v->shader->stream_output;
92
93 /*
94 * First, any stream-out varyings not already in linkage map (ie. also
95 * consumed by frag shader) need to be added:
96 */
97 for (unsigned i = 0; i < strmout->num_outputs; i++) {
98 const struct ir3_stream_output *out = &strmout->output[i];
99 unsigned k = out->register_index;
100 unsigned compmask =
101 (1 << (out->num_components + out->start_component)) - 1;
102 unsigned idx, nextloc = 0;
103
104 /* psize/pos need to be the last entries in linkage map, and will
105 * get added link_stream_out, so skip over them:
106 */
107 if ((v->outputs[k].slot == VARYING_SLOT_PSIZ) ||
108 (v->outputs[k].slot == VARYING_SLOT_POS))
109 continue;
110
111 for (idx = 0; idx < l->cnt; idx++) {
112 if (l->var[idx].regid == v->outputs[k].regid)
113 break;
114 nextloc = MAX2(nextloc, l->var[idx].loc + 4);
115 }
116
117 /* add if not already in linkage map: */
118 if (idx == l->cnt)
119 ir3_link_add(l, v->outputs[k].regid, compmask, nextloc);
120
121 /* expand component-mask if needed, ie streaming out all components
122 * but frag shader doesn't consume all components:
123 */
124 if (compmask & ~l->var[idx].compmask) {
125 l->var[idx].compmask |= compmask;
126 l->max_loc = MAX2(l->max_loc,
127 l->var[idx].loc + util_last_bit(l->var[idx].compmask));
128 }
129 }
130 }
131
132 /* TODO maybe some of this we could pre-compute once rather than having
133 * so much draw-time logic?
134 */
135 static void
136 emit_stream_out(struct fd_ringbuffer *ring, const struct ir3_shader_variant *v,
137 struct ir3_shader_linkage *l)
138 {
139 const struct ir3_stream_output_info *strmout = &v->shader->stream_output;
140 unsigned ncomp[PIPE_MAX_SO_BUFFERS] = {0};
141 unsigned prog[align(l->max_loc, 2) / 2];
142
143 memset(prog, 0, sizeof(prog));
144
145 for (unsigned i = 0; i < strmout->num_outputs; i++) {
146 const struct ir3_stream_output *out = &strmout->output[i];
147 unsigned k = out->register_index;
148 unsigned idx;
149
150 ncomp[out->output_buffer] += out->num_components;
151
152 /* linkage map sorted by order frag shader wants things, so
153 * a bit less ideal here..
154 */
155 for (idx = 0; idx < l->cnt; idx++)
156 if (l->var[idx].regid == v->outputs[k].regid)
157 break;
158
159 debug_assert(idx < l->cnt);
160
161 for (unsigned j = 0; j < out->num_components; j++) {
162 unsigned c = j + out->start_component;
163 unsigned loc = l->var[idx].loc + c;
164 unsigned off = j + out->dst_offset; /* in dwords */
165
166 if (loc & 1) {
167 prog[loc/2] |= A5XX_VPC_SO_PROG_B_EN |
168 A5XX_VPC_SO_PROG_B_BUF(out->output_buffer) |
169 A5XX_VPC_SO_PROG_B_OFF(off * 4);
170 } else {
171 prog[loc/2] |= A5XX_VPC_SO_PROG_A_EN |
172 A5XX_VPC_SO_PROG_A_BUF(out->output_buffer) |
173 A5XX_VPC_SO_PROG_A_OFF(off * 4);
174 }
175 }
176 }
177
178 OUT_PKT7(ring, CP_CONTEXT_REG_BUNCH, 12 + (2 * ARRAY_SIZE(prog)));
179 OUT_RING(ring, REG_A5XX_VPC_SO_BUF_CNTL);
180 OUT_RING(ring, A5XX_VPC_SO_BUF_CNTL_ENABLE |
181 COND(ncomp[0] > 0, A5XX_VPC_SO_BUF_CNTL_BUF0) |
182 COND(ncomp[1] > 0, A5XX_VPC_SO_BUF_CNTL_BUF1) |
183 COND(ncomp[2] > 0, A5XX_VPC_SO_BUF_CNTL_BUF2) |
184 COND(ncomp[3] > 0, A5XX_VPC_SO_BUF_CNTL_BUF3));
185 OUT_RING(ring, REG_A5XX_VPC_SO_NCOMP(0));
186 OUT_RING(ring, ncomp[0]);
187 OUT_RING(ring, REG_A5XX_VPC_SO_NCOMP(1));
188 OUT_RING(ring, ncomp[1]);
189 OUT_RING(ring, REG_A5XX_VPC_SO_NCOMP(2));
190 OUT_RING(ring, ncomp[2]);
191 OUT_RING(ring, REG_A5XX_VPC_SO_NCOMP(3));
192 OUT_RING(ring, ncomp[3]);
193 OUT_RING(ring, REG_A5XX_VPC_SO_CNTL);
194 OUT_RING(ring, A5XX_VPC_SO_CNTL_ENABLE);
195 for (unsigned i = 0; i < ARRAY_SIZE(prog); i++) {
196 OUT_RING(ring, REG_A5XX_VPC_SO_PROG);
197 OUT_RING(ring, prog[i]);
198 }
199 }
200
201 struct stage {
202 const struct ir3_shader_variant *v;
203 const struct ir3_info *i;
204 /* const sizes are in units of 4 * vec4 */
205 uint8_t constoff;
206 uint8_t constlen;
207 /* instr sizes are in units of 16 instructions */
208 uint8_t instroff;
209 uint8_t instrlen;
210 };
211
212 enum {
213 VS = 0,
214 FS = 1,
215 HS = 2,
216 DS = 3,
217 GS = 4,
218 MAX_STAGES
219 };
220
221 static void
222 setup_stages(struct fd5_emit *emit, struct stage *s)
223 {
224 unsigned i;
225
226 s[VS].v = fd5_emit_get_vp(emit);
227 s[FS].v = fd5_emit_get_fp(emit);
228
229 s[HS].v = s[DS].v = s[GS].v = NULL; /* for now */
230
231 for (i = 0; i < MAX_STAGES; i++) {
232 if (s[i].v) {
233 s[i].i = &s[i].v->info;
234 /* constlen is in units of 4 * vec4: */
235 assert(s[i].v->constlen % 4 == 0);
236 s[i].constlen = s[i].v->constlen / 4;
237 /* instrlen is already in units of 16 instr.. although
238 * probably we should ditch that and not make the compiler
239 * care about instruction group size of a3xx vs a5xx
240 */
241 s[i].instrlen = s[i].v->instrlen;
242 } else {
243 s[i].i = NULL;
244 s[i].constlen = 0;
245 s[i].instrlen = 0;
246 }
247 }
248
249 /* NOTE: at least for gles2, blob partitions VS at bottom of const
250 * space and FS taking entire remaining space. We probably don't
251 * need to do that the same way, but for now mimic what the blob
252 * does to make it easier to diff against register values from blob
253 *
254 * NOTE: if VS.instrlen + FS.instrlen > 64, then one or both shaders
255 * is run from external memory.
256 */
257 if ((s[VS].instrlen + s[FS].instrlen) > 64) {
258 /* prioritize FS for internal memory: */
259 if (s[FS].instrlen < 64) {
260 /* if FS can fit, kick VS out to external memory: */
261 s[VS].instrlen = 0;
262 } else if (s[VS].instrlen < 64) {
263 /* otherwise if VS can fit, kick out FS: */
264 s[FS].instrlen = 0;
265 } else {
266 /* neither can fit, run both from external memory: */
267 s[VS].instrlen = 0;
268 s[FS].instrlen = 0;
269 }
270 }
271
272 unsigned constoff = 0;
273 for (i = 0; i < MAX_STAGES; i++) {
274 s[i].constoff = constoff;
275 constoff += s[i].constlen;
276 }
277
278 s[VS].instroff = 0;
279 s[FS].instroff = 64 - s[FS].instrlen;
280 s[HS].instroff = s[DS].instroff = s[GS].instroff = s[FS].instroff;
281 }
282
283 void
284 fd5_program_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
285 struct fd5_emit *emit)
286 {
287 struct stage s[MAX_STAGES];
288 uint32_t pos_regid, psize_regid, color_regid[8];
289 uint32_t face_regid, coord_regid, zwcoord_regid, samp_id_regid, samp_mask_regid;
290 uint32_t ij_regid[IJ_COUNT], vertex_regid, instance_regid;
291 enum a3xx_threadsize fssz;
292 uint8_t psize_loc = ~0;
293 int i, j;
294
295 setup_stages(emit, s);
296
297 fssz = (s[FS].i->max_reg >= 24) ? TWO_QUADS : FOUR_QUADS;
298
299 pos_regid = ir3_find_output_regid(s[VS].v, VARYING_SLOT_POS);
300 psize_regid = ir3_find_output_regid(s[VS].v, VARYING_SLOT_PSIZ);
301 vertex_regid = ir3_find_sysval_regid(s[VS].v, SYSTEM_VALUE_VERTEX_ID_ZERO_BASE);
302 instance_regid = ir3_find_sysval_regid(s[VS].v, SYSTEM_VALUE_INSTANCE_ID);
303
304 if (s[FS].v->color0_mrt) {
305 color_regid[0] = color_regid[1] = color_regid[2] = color_regid[3] =
306 color_regid[4] = color_regid[5] = color_regid[6] = color_regid[7] =
307 ir3_find_output_regid(s[FS].v, FRAG_RESULT_COLOR);
308 } else {
309 color_regid[0] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA0);
310 color_regid[1] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA1);
311 color_regid[2] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA2);
312 color_regid[3] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA3);
313 color_regid[4] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA4);
314 color_regid[5] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA5);
315 color_regid[6] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA6);
316 color_regid[7] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA7);
317 }
318
319 samp_id_regid = ir3_find_sysval_regid(s[FS].v, SYSTEM_VALUE_SAMPLE_ID);
320 samp_mask_regid = ir3_find_sysval_regid(s[FS].v, SYSTEM_VALUE_SAMPLE_MASK_IN);
321 face_regid = ir3_find_sysval_regid(s[FS].v, SYSTEM_VALUE_FRONT_FACE);
322 coord_regid = ir3_find_sysval_regid(s[FS].v, SYSTEM_VALUE_FRAG_COORD);
323 zwcoord_regid = (coord_regid == regid(63,0)) ? regid(63,0) : (coord_regid + 2);
324 for (unsigned i = 0; i < ARRAY_SIZE(ij_regid); i++)
325 ij_regid[i] = ir3_find_sysval_regid(s[FS].v, SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL + i);
326
327 /* we could probably divide this up into things that need to be
328 * emitted if frag-prog is dirty vs if vert-prog is dirty..
329 */
330
331 OUT_PKT4(ring, REG_A5XX_HLSQ_VS_CONFIG, 5);
332 OUT_RING(ring, A5XX_HLSQ_VS_CONFIG_CONSTOBJECTOFFSET(s[VS].constoff) |
333 A5XX_HLSQ_VS_CONFIG_SHADEROBJOFFSET(s[VS].instroff) |
334 COND(s[VS].v, A5XX_HLSQ_VS_CONFIG_ENABLED));
335 OUT_RING(ring, A5XX_HLSQ_FS_CONFIG_CONSTOBJECTOFFSET(s[FS].constoff) |
336 A5XX_HLSQ_FS_CONFIG_SHADEROBJOFFSET(s[FS].instroff) |
337 COND(s[FS].v, A5XX_HLSQ_FS_CONFIG_ENABLED));
338 OUT_RING(ring, A5XX_HLSQ_HS_CONFIG_CONSTOBJECTOFFSET(s[HS].constoff) |
339 A5XX_HLSQ_HS_CONFIG_SHADEROBJOFFSET(s[HS].instroff) |
340 COND(s[HS].v, A5XX_HLSQ_HS_CONFIG_ENABLED));
341 OUT_RING(ring, A5XX_HLSQ_DS_CONFIG_CONSTOBJECTOFFSET(s[DS].constoff) |
342 A5XX_HLSQ_DS_CONFIG_SHADEROBJOFFSET(s[DS].instroff) |
343 COND(s[DS].v, A5XX_HLSQ_DS_CONFIG_ENABLED));
344 OUT_RING(ring, A5XX_HLSQ_GS_CONFIG_CONSTOBJECTOFFSET(s[GS].constoff) |
345 A5XX_HLSQ_GS_CONFIG_SHADEROBJOFFSET(s[GS].instroff) |
346 COND(s[GS].v, A5XX_HLSQ_GS_CONFIG_ENABLED));
347
348 OUT_PKT4(ring, REG_A5XX_HLSQ_CS_CONFIG, 1);
349 OUT_RING(ring, 0x00000000);
350
351 OUT_PKT4(ring, REG_A5XX_HLSQ_VS_CNTL, 5);
352 OUT_RING(ring, A5XX_HLSQ_VS_CNTL_INSTRLEN(s[VS].instrlen) |
353 COND(s[VS].v && s[VS].v->has_ssbo, A5XX_HLSQ_VS_CNTL_SSBO_ENABLE));
354 OUT_RING(ring, A5XX_HLSQ_FS_CNTL_INSTRLEN(s[FS].instrlen) |
355 COND(s[FS].v && s[FS].v->has_ssbo, A5XX_HLSQ_FS_CNTL_SSBO_ENABLE));
356 OUT_RING(ring, A5XX_HLSQ_HS_CNTL_INSTRLEN(s[HS].instrlen) |
357 COND(s[HS].v && s[HS].v->has_ssbo, A5XX_HLSQ_HS_CNTL_SSBO_ENABLE));
358 OUT_RING(ring, A5XX_HLSQ_DS_CNTL_INSTRLEN(s[DS].instrlen) |
359 COND(s[DS].v && s[DS].v->has_ssbo, A5XX_HLSQ_DS_CNTL_SSBO_ENABLE));
360 OUT_RING(ring, A5XX_HLSQ_GS_CNTL_INSTRLEN(s[GS].instrlen) |
361 COND(s[GS].v && s[GS].v->has_ssbo, A5XX_HLSQ_GS_CNTL_SSBO_ENABLE));
362
363 OUT_PKT4(ring, REG_A5XX_SP_VS_CONFIG, 5);
364 OUT_RING(ring, A5XX_SP_VS_CONFIG_CONSTOBJECTOFFSET(s[VS].constoff) |
365 A5XX_SP_VS_CONFIG_SHADEROBJOFFSET(s[VS].instroff) |
366 COND(s[VS].v, A5XX_SP_VS_CONFIG_ENABLED));
367 OUT_RING(ring, A5XX_SP_FS_CONFIG_CONSTOBJECTOFFSET(s[FS].constoff) |
368 A5XX_SP_FS_CONFIG_SHADEROBJOFFSET(s[FS].instroff) |
369 COND(s[FS].v, A5XX_SP_FS_CONFIG_ENABLED));
370 OUT_RING(ring, A5XX_SP_HS_CONFIG_CONSTOBJECTOFFSET(s[HS].constoff) |
371 A5XX_SP_HS_CONFIG_SHADEROBJOFFSET(s[HS].instroff) |
372 COND(s[HS].v, A5XX_SP_HS_CONFIG_ENABLED));
373 OUT_RING(ring, A5XX_SP_DS_CONFIG_CONSTOBJECTOFFSET(s[DS].constoff) |
374 A5XX_SP_DS_CONFIG_SHADEROBJOFFSET(s[DS].instroff) |
375 COND(s[DS].v, A5XX_SP_DS_CONFIG_ENABLED));
376 OUT_RING(ring, A5XX_SP_GS_CONFIG_CONSTOBJECTOFFSET(s[GS].constoff) |
377 A5XX_SP_GS_CONFIG_SHADEROBJOFFSET(s[GS].instroff) |
378 COND(s[GS].v, A5XX_SP_GS_CONFIG_ENABLED));
379
380 OUT_PKT4(ring, REG_A5XX_SP_CS_CONFIG, 1);
381 OUT_RING(ring, 0x00000000);
382
383 OUT_PKT4(ring, REG_A5XX_HLSQ_VS_CONSTLEN, 2);
384 OUT_RING(ring, s[VS].constlen); /* HLSQ_VS_CONSTLEN */
385 OUT_RING(ring, s[VS].instrlen); /* HLSQ_VS_INSTRLEN */
386
387 OUT_PKT4(ring, REG_A5XX_HLSQ_FS_CONSTLEN, 2);
388 OUT_RING(ring, s[FS].constlen); /* HLSQ_FS_CONSTLEN */
389 OUT_RING(ring, s[FS].instrlen); /* HLSQ_FS_INSTRLEN */
390
391 OUT_PKT4(ring, REG_A5XX_HLSQ_HS_CONSTLEN, 2);
392 OUT_RING(ring, s[HS].constlen); /* HLSQ_HS_CONSTLEN */
393 OUT_RING(ring, s[HS].instrlen); /* HLSQ_HS_INSTRLEN */
394
395 OUT_PKT4(ring, REG_A5XX_HLSQ_DS_CONSTLEN, 2);
396 OUT_RING(ring, s[DS].constlen); /* HLSQ_DS_CONSTLEN */
397 OUT_RING(ring, s[DS].instrlen); /* HLSQ_DS_INSTRLEN */
398
399 OUT_PKT4(ring, REG_A5XX_HLSQ_GS_CONSTLEN, 2);
400 OUT_RING(ring, s[GS].constlen); /* HLSQ_GS_CONSTLEN */
401 OUT_RING(ring, s[GS].instrlen); /* HLSQ_GS_INSTRLEN */
402
403 OUT_PKT4(ring, REG_A5XX_HLSQ_CS_CONSTLEN, 2);
404 OUT_RING(ring, 0x00000000); /* HLSQ_CS_CONSTLEN */
405 OUT_RING(ring, 0x00000000); /* HLSQ_CS_INSTRLEN */
406
407 OUT_PKT4(ring, REG_A5XX_SP_VS_CTRL_REG0, 1);
408 OUT_RING(ring, A5XX_SP_VS_CTRL_REG0_HALFREGFOOTPRINT(s[VS].i->max_half_reg + 1) |
409 A5XX_SP_VS_CTRL_REG0_FULLREGFOOTPRINT(s[VS].i->max_reg + 1) |
410 0x6 | /* XXX seems to be always set? */
411 A5XX_SP_VS_CTRL_REG0_BRANCHSTACK(s[VS].v->branchstack) |
412 COND(s[VS].v->need_pixlod, A5XX_SP_VS_CTRL_REG0_PIXLODENABLE));
413
414 struct ir3_shader_linkage l = {0};
415 ir3_link_shaders(&l, s[VS].v, s[FS].v, true);
416
417 if ((s[VS].v->shader->stream_output.num_outputs > 0) &&
418 !emit->binning_pass)
419 link_stream_out(&l, s[VS].v);
420
421 OUT_PKT4(ring, REG_A5XX_VPC_VAR_DISABLE(0), 4);
422 OUT_RING(ring, ~l.varmask[0]); /* VPC_VAR[0].DISABLE */
423 OUT_RING(ring, ~l.varmask[1]); /* VPC_VAR[1].DISABLE */
424 OUT_RING(ring, ~l.varmask[2]); /* VPC_VAR[2].DISABLE */
425 OUT_RING(ring, ~l.varmask[3]); /* VPC_VAR[3].DISABLE */
426
427 /* a5xx appends pos/psize to end of the linkage map: */
428 if (pos_regid != regid(63,0))
429 ir3_link_add(&l, pos_regid, 0xf, l.max_loc);
430
431 if (psize_regid != regid(63,0)) {
432 psize_loc = l.max_loc;
433 ir3_link_add(&l, psize_regid, 0x1, l.max_loc);
434 }
435
436 if ((s[VS].v->shader->stream_output.num_outputs > 0) &&
437 !emit->binning_pass) {
438 emit_stream_out(ring, s[VS].v, &l);
439
440 OUT_PKT4(ring, REG_A5XX_VPC_SO_OVERRIDE, 1);
441 OUT_RING(ring, 0x00000000);
442 } else {
443 OUT_PKT4(ring, REG_A5XX_VPC_SO_OVERRIDE, 1);
444 OUT_RING(ring, A5XX_VPC_SO_OVERRIDE_SO_DISABLE);
445 }
446
447 for (i = 0, j = 0; (i < 16) && (j < l.cnt); i++) {
448 uint32_t reg = 0;
449
450 OUT_PKT4(ring, REG_A5XX_SP_VS_OUT_REG(i), 1);
451
452 reg |= A5XX_SP_VS_OUT_REG_A_REGID(l.var[j].regid);
453 reg |= A5XX_SP_VS_OUT_REG_A_COMPMASK(l.var[j].compmask);
454 j++;
455
456 reg |= A5XX_SP_VS_OUT_REG_B_REGID(l.var[j].regid);
457 reg |= A5XX_SP_VS_OUT_REG_B_COMPMASK(l.var[j].compmask);
458 j++;
459
460 OUT_RING(ring, reg);
461 }
462
463 for (i = 0, j = 0; (i < 8) && (j < l.cnt); i++) {
464 uint32_t reg = 0;
465
466 OUT_PKT4(ring, REG_A5XX_SP_VS_VPC_DST_REG(i), 1);
467
468 reg |= A5XX_SP_VS_VPC_DST_REG_OUTLOC0(l.var[j++].loc);
469 reg |= A5XX_SP_VS_VPC_DST_REG_OUTLOC1(l.var[j++].loc);
470 reg |= A5XX_SP_VS_VPC_DST_REG_OUTLOC2(l.var[j++].loc);
471 reg |= A5XX_SP_VS_VPC_DST_REG_OUTLOC3(l.var[j++].loc);
472
473 OUT_RING(ring, reg);
474 }
475
476 OUT_PKT4(ring, REG_A5XX_SP_VS_OBJ_START_LO, 2);
477 OUT_RELOC(ring, s[VS].v->bo, 0, 0, 0); /* SP_VS_OBJ_START_LO/HI */
478
479 if (s[VS].instrlen)
480 fd5_emit_shader(ring, s[VS].v);
481
482 // TODO depending on other bits in this reg (if any) set somewhere else?
483 OUT_PKT4(ring, REG_A5XX_PC_PRIM_VTX_CNTL, 1);
484 OUT_RING(ring, COND(s[VS].v->writes_psize, A5XX_PC_PRIM_VTX_CNTL_PSIZE));
485
486 OUT_PKT4(ring, REG_A5XX_SP_PRIMITIVE_CNTL, 1);
487 OUT_RING(ring, A5XX_SP_PRIMITIVE_CNTL_VSOUT(l.cnt));
488
489 OUT_PKT4(ring, REG_A5XX_VPC_CNTL_0, 1);
490 OUT_RING(ring, A5XX_VPC_CNTL_0_STRIDE_IN_VPC(l.max_loc) |
491 COND(s[FS].v->total_in > 0, A5XX_VPC_CNTL_0_VARYING) |
492 COND(s[FS].v->fragcoord_compmask != 0, A5XX_VPC_CNTL_0_VARYING) |
493 0x10000); // XXX
494
495 fd5_context(ctx)->max_loc = l.max_loc;
496
497 if (emit->binning_pass) {
498 OUT_PKT4(ring, REG_A5XX_SP_FS_OBJ_START_LO, 2);
499 OUT_RING(ring, 0x00000000); /* SP_FS_OBJ_START_LO */
500 OUT_RING(ring, 0x00000000); /* SP_FS_OBJ_START_HI */
501 } else {
502 OUT_PKT4(ring, REG_A5XX_SP_FS_OBJ_START_LO, 2);
503 OUT_RELOC(ring, s[FS].v->bo, 0, 0, 0); /* SP_FS_OBJ_START_LO/HI */
504 }
505
506 OUT_PKT4(ring, REG_A5XX_HLSQ_CONTROL_0_REG, 5);
507 OUT_RING(ring, A5XX_HLSQ_CONTROL_0_REG_FSTHREADSIZE(fssz) |
508 A5XX_HLSQ_CONTROL_0_REG_CSTHREADSIZE(TWO_QUADS) |
509 0x00000880); /* XXX HLSQ_CONTROL_0 */
510 OUT_RING(ring, A5XX_HLSQ_CONTROL_1_REG_PRIMALLOCTHRESHOLD(63));
511 OUT_RING(ring, A5XX_HLSQ_CONTROL_2_REG_FACEREGID(face_regid) |
512 A5XX_HLSQ_CONTROL_2_REG_SAMPLEID(samp_id_regid) |
513 A5XX_HLSQ_CONTROL_2_REG_SAMPLEMASK(samp_mask_regid) |
514 A5XX_HLSQ_CONTROL_2_REG_SIZE(ij_regid[IJ_PERSP_SIZE]));
515 OUT_RING(ring,
516 A5XX_HLSQ_CONTROL_3_REG_IJ_PERSP_PIXEL(ij_regid[IJ_PERSP_PIXEL]) |
517 A5XX_HLSQ_CONTROL_3_REG_IJ_LINEAR_PIXEL(ij_regid[IJ_LINEAR_PIXEL]) |
518 A5XX_HLSQ_CONTROL_3_REG_IJ_PERSP_CENTROID(ij_regid[IJ_PERSP_CENTROID]) |
519 A5XX_HLSQ_CONTROL_3_REG_IJ_PERSP_CENTROID(ij_regid[IJ_LINEAR_CENTROID]));
520 OUT_RING(ring, A5XX_HLSQ_CONTROL_4_REG_XYCOORDREGID(coord_regid) |
521 A5XX_HLSQ_CONTROL_4_REG_ZWCOORDREGID(zwcoord_regid) |
522 A5XX_HLSQ_CONTROL_4_REG_IJ_PERSP_SAMPLE(ij_regid[IJ_PERSP_SAMPLE]) |
523 A5XX_HLSQ_CONTROL_4_REG_IJ_LINEAR_SAMPLE(ij_regid[IJ_LINEAR_SAMPLE]));
524
525 OUT_PKT4(ring, REG_A5XX_SP_FS_CTRL_REG0, 1);
526 OUT_RING(ring, COND(s[FS].v->total_in > 0, A5XX_SP_FS_CTRL_REG0_VARYING) |
527 COND(s[FS].v->fragcoord_compmask != 0, A5XX_SP_FS_CTRL_REG0_VARYING) |
528 0x40006 | /* XXX set pretty much everywhere */
529 A5XX_SP_FS_CTRL_REG0_THREADSIZE(fssz) |
530 A5XX_SP_FS_CTRL_REG0_HALFREGFOOTPRINT(s[FS].i->max_half_reg + 1) |
531 A5XX_SP_FS_CTRL_REG0_FULLREGFOOTPRINT(s[FS].i->max_reg + 1) |
532 A5XX_SP_FS_CTRL_REG0_BRANCHSTACK(s[FS].v->branchstack) |
533 COND(s[FS].v->need_pixlod, A5XX_SP_FS_CTRL_REG0_PIXLODENABLE));
534
535 OUT_PKT4(ring, REG_A5XX_HLSQ_UPDATE_CNTL, 1);
536 OUT_RING(ring, 0x020fffff); /* XXX */
537
538 OUT_PKT4(ring, REG_A5XX_VPC_GS_SIV_CNTL, 1);
539 OUT_RING(ring, 0x0000ffff); /* XXX */
540
541 OUT_PKT4(ring, REG_A5XX_SP_SP_CNTL, 1);
542 OUT_RING(ring, 0x00000010); /* XXX */
543
544 /* XXX: missing enable bits for per-sample bary linear centroid and IJ_PERSP_SIZE
545 * (should be identical to a6xx)
546 */
547
548 OUT_PKT4(ring, REG_A5XX_GRAS_CNTL, 1);
549 OUT_RING(ring,
550 CONDREG(ij_regid[IJ_PERSP_PIXEL], A5XX_GRAS_CNTL_IJ_PERSP_PIXEL) |
551 CONDREG(ij_regid[IJ_PERSP_CENTROID], A5XX_GRAS_CNTL_IJ_PERSP_CENTROID) |
552 COND(s[FS].v->fragcoord_compmask != 0,
553 A5XX_GRAS_CNTL_COORD_MASK(s[FS].v->fragcoord_compmask) |
554 A5XX_GRAS_CNTL_SIZE) |
555 COND(s[FS].v->frag_face, A5XX_GRAS_CNTL_SIZE) |
556 CONDREG(ij_regid[IJ_LINEAR_PIXEL], A5XX_GRAS_CNTL_SIZE));
557
558 OUT_PKT4(ring, REG_A5XX_RB_RENDER_CONTROL0, 2);
559 OUT_RING(ring,
560 CONDREG(ij_regid[IJ_PERSP_PIXEL], A5XX_RB_RENDER_CONTROL0_IJ_PERSP_PIXEL) |
561 CONDREG(ij_regid[IJ_PERSP_CENTROID], A5XX_RB_RENDER_CONTROL0_IJ_PERSP_CENTROID) |
562 COND(s[FS].v->fragcoord_compmask != 0,
563 A5XX_RB_RENDER_CONTROL0_COORD_MASK(s[FS].v->fragcoord_compmask) |
564 A5XX_RB_RENDER_CONTROL0_SIZE) |
565 COND(s[FS].v->frag_face, A5XX_RB_RENDER_CONTROL0_SIZE) |
566 CONDREG(ij_regid[IJ_LINEAR_PIXEL], A5XX_RB_RENDER_CONTROL0_SIZE));
567 OUT_RING(ring,
568 COND(samp_mask_regid != regid(63, 0),
569 A5XX_RB_RENDER_CONTROL1_SAMPLEMASK) |
570 COND(s[FS].v->frag_face, A5XX_RB_RENDER_CONTROL1_FACENESS) |
571 COND(samp_id_regid != regid(63, 0),
572 A5XX_RB_RENDER_CONTROL1_SAMPLEID));
573
574 OUT_PKT4(ring, REG_A5XX_SP_FS_OUTPUT_REG(0), 8);
575 for (i = 0; i < 8; i++) {
576 OUT_RING(ring, A5XX_SP_FS_OUTPUT_REG_REGID(color_regid[i]) |
577 COND(color_regid[i] & HALF_REG_ID, A5XX_SP_FS_OUTPUT_REG_HALF_PRECISION));
578 }
579
580
581 OUT_PKT4(ring, REG_A5XX_VPC_PACK, 1);
582 OUT_RING(ring, A5XX_VPC_PACK_NUMNONPOSVAR(s[FS].v->total_in) |
583 A5XX_VPC_PACK_PSIZELOC(psize_loc));
584
585 if (!emit->binning_pass) {
586 uint32_t vinterp[8], vpsrepl[8];
587
588 memset(vinterp, 0, sizeof(vinterp));
589 memset(vpsrepl, 0, sizeof(vpsrepl));
590
591 /* looks like we need to do int varyings in the frag
592 * shader on a5xx (no flatshad reg? or a420.0 bug?):
593 *
594 * (sy)(ss)nop
595 * (sy)ldlv.u32 r0.x,l[r0.x], 1
596 * ldlv.u32 r0.y,l[r0.x+1], 1
597 * (ss)bary.f (ei)r63.x, 0, r0.x
598 * (ss)(rpt1)cov.s32f16 hr0.x, (r)r0.x
599 * (rpt5)nop
600 * sam (f16)(xyzw)hr0.x, hr0.x, s#0, t#0
601 *
602 * Possibly on later a5xx variants we'll be able to use
603 * something like the code below instead of workaround
604 * in the shader:
605 */
606 /* figure out VARYING_INTERP / VARYING_PS_REPL register values: */
607 for (j = -1; (j = ir3_next_varying(s[FS].v, j)) < (int)s[FS].v->inputs_count; ) {
608 /* NOTE: varyings are packed, so if compmask is 0xb
609 * then first, third, and fourth component occupy
610 * three consecutive varying slots:
611 */
612 unsigned compmask = s[FS].v->inputs[j].compmask;
613
614 uint32_t inloc = s[FS].v->inputs[j].inloc;
615
616 if ((s[FS].v->inputs[j].interpolate == INTERP_MODE_FLAT) ||
617 (s[FS].v->inputs[j].rasterflat && emit->rasterflat)) {
618 uint32_t loc = inloc;
619
620 for (i = 0; i < 4; i++) {
621 if (compmask & (1 << i)) {
622 vinterp[loc / 16] |= 1 << ((loc % 16) * 2);
623 //flatshade[loc / 32] |= 1 << (loc % 32);
624 loc++;
625 }
626 }
627 }
628
629 bool coord_mode = emit->sprite_coord_mode;
630 if (ir3_point_sprite(s[FS].v, j, emit->sprite_coord_enable, &coord_mode)) {
631 /* mask is two 2-bit fields, where:
632 * '01' -> S
633 * '10' -> T
634 * '11' -> 1 - T (flip mode)
635 */
636 unsigned mask = coord_mode ? 0b1101 : 0b1001;
637 uint32_t loc = inloc;
638 if (compmask & 0x1) {
639 vpsrepl[loc / 16] |= ((mask >> 0) & 0x3) << ((loc % 16) * 2);
640 loc++;
641 }
642 if (compmask & 0x2) {
643 vpsrepl[loc / 16] |= ((mask >> 2) & 0x3) << ((loc % 16) * 2);
644 loc++;
645 }
646 if (compmask & 0x4) {
647 /* .z <- 0.0f */
648 vinterp[loc / 16] |= 0b10 << ((loc % 16) * 2);
649 loc++;
650 }
651 if (compmask & 0x8) {
652 /* .w <- 1.0f */
653 vinterp[loc / 16] |= 0b11 << ((loc % 16) * 2);
654 loc++;
655 }
656 }
657 }
658
659 OUT_PKT4(ring, REG_A5XX_VPC_VARYING_INTERP_MODE(0), 8);
660 for (i = 0; i < 8; i++)
661 OUT_RING(ring, vinterp[i]); /* VPC_VARYING_INTERP[i].MODE */
662
663 OUT_PKT4(ring, REG_A5XX_VPC_VARYING_PS_REPL_MODE(0), 8);
664 for (i = 0; i < 8; i++)
665 OUT_RING(ring, vpsrepl[i]); /* VPC_VARYING_PS_REPL[i] */
666 }
667
668 if (!emit->binning_pass)
669 if (s[FS].instrlen)
670 fd5_emit_shader(ring, s[FS].v);
671
672 OUT_PKT4(ring, REG_A5XX_VFD_CONTROL_1, 5);
673 OUT_RING(ring, A5XX_VFD_CONTROL_1_REGID4VTX(vertex_regid) |
674 A5XX_VFD_CONTROL_1_REGID4INST(instance_regid) |
675 0xfc0000);
676 OUT_RING(ring, 0x0000fcfc); /* VFD_CONTROL_2 */
677 OUT_RING(ring, 0x0000fcfc); /* VFD_CONTROL_3 */
678 OUT_RING(ring, 0x000000fc); /* VFD_CONTROL_4 */
679 OUT_RING(ring, 0x00000000); /* VFD_CONTROL_5 */
680 }
681
682 void
683 fd5_prog_init(struct pipe_context *pctx)
684 {
685 ir3_prog_init(pctx);
686 fd_prog_init(pctx);
687 }