1 /**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29 #include "util/u_memory.h"
30 #include "util/u_math.h"
31 #include "util/u_cpu_detect.h"
32 #include "util/format/u_format.h"
33 #include "util/u_screen.h"
34 #include "util/u_string.h"
35 #include "util/format/u_format_s3tc.h"
36 #include "pipe/p_defines.h"
37 #include "pipe/p_screen.h"
38 #include "draw/draw_context.h"
39 #include "gallivm/lp_bld_type.h"
40 #include "gallivm/lp_bld_nir.h"
41 #include "util/disk_cache.h"
42 #include "util/os_misc.h"
43 #include "util/os_time.h"
44 #include "lp_texture.h"
45 #include "lp_fence.h"
46 #include "lp_jit.h"
47 #include "lp_screen.h"
48 #include "lp_context.h"
49 #include "lp_debug.h"
50 #include "lp_public.h"
51 #include "lp_limits.h"
52 #include "lp_rast.h"
53 #include "lp_cs_tpool.h"
54
55 #include "frontend/sw_winsys.h"
56
57 #include "nir.h"
58
59 #ifdef DEBUG
60 int LP_DEBUG = 0;
61
62 static const struct debug_named_value lp_debug_flags[] = {
63 { "pipe", DEBUG_PIPE, NULL },
64 { "tgsi", DEBUG_TGSI, NULL },
65 { "tex", DEBUG_TEX, NULL },
66 { "setup", DEBUG_SETUP, NULL },
67 { "rast", DEBUG_RAST, NULL },
68 { "query", DEBUG_QUERY, NULL },
69 { "screen", DEBUG_SCREEN, NULL },
70 { "counters", DEBUG_COUNTERS, NULL },
71 { "scene", DEBUG_SCENE, NULL },
72 { "fence", DEBUG_FENCE, NULL },
73 { "no_fastpath", DEBUG_NO_FASTPATH, NULL },
74 { "linear", DEBUG_LINEAR, NULL },
75 { "linear2", DEBUG_LINEAR2, NULL },
76 { "mem", DEBUG_MEM, NULL },
77 { "fs", DEBUG_FS, NULL },
78 { "cs", DEBUG_CS, NULL },
79 { "tgsi_ir", DEBUG_TGSI_IR, NULL },
80 { "cache_stats", DEBUG_CACHE_STATS, NULL },
81 { "accurate_a0", DEBUG_ACCURATE_A0 },
82 DEBUG_NAMED_VALUE_END
83 };
84 #endif
85
86 int LP_PERF = 0;
87 static const struct debug_named_value lp_perf_flags[] = {
88 { "texmem", PERF_TEX_MEM, NULL },
89 { "no_mipmap", PERF_NO_MIPMAPS, NULL },
90 { "no_linear", PERF_NO_LINEAR, NULL },
91 { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL },
92 { "no_tex", PERF_NO_TEX, NULL },
93 { "no_blend", PERF_NO_BLEND, NULL },
94 { "no_depth", PERF_NO_DEPTH, NULL },
95 { "no_alphatest", PERF_NO_ALPHATEST, NULL },
96 { "no_rast_linear", PERF_NO_RAST_LINEAR, NULL },
97 { "no_shade", PERF_NO_SHADE, NULL },
98 DEBUG_NAMED_VALUE_END
99 };
100
101
102 static const char *
llvmpipe_get_vendor(struct pipe_screen * screen)103 llvmpipe_get_vendor(struct pipe_screen *screen)
104 {
105 return "Mesa/X.org";
106 }
107
108
109 static const char *
llvmpipe_get_name(struct pipe_screen * screen)110 llvmpipe_get_name(struct pipe_screen *screen)
111 {
112 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
113 return lscreen->renderer_string;
114 }
115
116
117 static int
llvmpipe_get_param(struct pipe_screen * screen,enum pipe_cap param)118 llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
119 {
120 switch (param) {
121 case PIPE_CAP_NPOT_TEXTURES:
122 case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
123 case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
124 case PIPE_CAP_ANISOTROPIC_FILTER:
125 return 1;
126 case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
127 case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
128 case PIPE_CAP_VERTEX_SHADER_SATURATE:
129 return 1;
130 case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
131 return 1;
132 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
133 return PIPE_MAX_SO_BUFFERS;
134 case PIPE_CAP_POINT_SPRITE:
135 return 1;
136 case PIPE_CAP_MAX_RENDER_TARGETS:
137 return PIPE_MAX_COLOR_BUFS;
138 case PIPE_CAP_OCCLUSION_QUERY:
139 case PIPE_CAP_QUERY_TIMESTAMP:
140 case PIPE_CAP_QUERY_TIME_ELAPSED:
141 return 1;
142 case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
143 return 1;
144 case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
145 case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
146 return 1;
147 case PIPE_CAP_TEXTURE_SWIZZLE:
148 case PIPE_CAP_TEXTURE_SHADOW_LOD:
149 return 1;
150 case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
151 return 1 << (LP_MAX_TEXTURE_2D_LEVELS - 1);
152 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
153 return LP_MAX_TEXTURE_3D_LEVELS;
154 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
155 return LP_MAX_TEXTURE_CUBE_LEVELS;
156 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
157 return LP_MAX_TEXTURE_ARRAY_LAYERS;
158 case PIPE_CAP_BLEND_EQUATION_SEPARATE:
159 return 1;
160 case PIPE_CAP_INDEP_BLEND_ENABLE:
161 return 1;
162 case PIPE_CAP_INDEP_BLEND_FUNC:
163 return 1;
164 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
165 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
166 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
167 return 1;
168 case PIPE_CAP_PRIMITIVE_RESTART:
169 case PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX:
170 return 1;
171 case PIPE_CAP_DEPTH_CLIP_DISABLE:
172 return 1;
173 case PIPE_CAP_DEPTH_CLAMP_ENABLE:
174 return 1;
175 case PIPE_CAP_SHADER_STENCIL_EXPORT:
176 return 1;
177 case PIPE_CAP_TGSI_INSTANCEID:
178 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
179 case PIPE_CAP_START_INSTANCE:
180 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
181 return 1;
182 case PIPE_CAP_SEAMLESS_CUBE_MAP:
183 case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
184 return 1;
185 /* this is a lie could support arbitrary large offsets */
186 case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
187 case PIPE_CAP_MIN_TEXEL_OFFSET:
188 return -32;
189 case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
190 case PIPE_CAP_MAX_TEXEL_OFFSET:
191 return 31;
192 case PIPE_CAP_CONDITIONAL_RENDER:
193 case PIPE_CAP_TEXTURE_BARRIER:
194 return 1;
195 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
196 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
197 return 16*4;
198 case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
199 case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
200 return 1024;
201 case PIPE_CAP_MAX_VERTEX_STREAMS: {
202 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
203 return lscreen->use_tgsi ? 1 : 4;
204 }
205 case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
206 return 2048;
207 case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
208 case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
209 case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
210 case PIPE_CAP_VERTEX_COLOR_CLAMPED:
211 return 1;
212 case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
213 case PIPE_CAP_GLSL_FEATURE_LEVEL: {
214 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
215 return lscreen->use_tgsi ? 330 : 450;
216 }
217 case PIPE_CAP_COMPUTE:
218 return GALLIVM_HAVE_CORO;
219 case PIPE_CAP_USER_VERTEX_BUFFERS:
220 return 1;
221 case PIPE_CAP_TGSI_TEXCOORD:
222 case PIPE_CAP_DRAW_INDIRECT:
223 return 1;
224
225 case PIPE_CAP_CUBE_MAP_ARRAY:
226 return 1;
227 case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
228 return 16;
229 case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
230 return 64;
231 case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
232 return 1;
233 /* Adressing that many 64bpp texels fits in an i32 so this is a reasonable value */
234 case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
235 return 134217728;
236 case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
237 return 16;
238 case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
239 return 0;
240 case PIPE_CAP_MAX_VIEWPORTS:
241 return PIPE_MAX_VIEWPORTS;
242 case PIPE_CAP_ENDIANNESS:
243 return PIPE_ENDIAN_NATIVE;
244 case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
245 case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
246 return 1;
247 case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
248 return 1;
249 case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
250 return 4;
251 case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
252 return 1;
253 case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
254 return 1;
255 case PIPE_CAP_TGSI_TEX_TXF_LZ:
256 case PIPE_CAP_SAMPLER_VIEW_TARGET:
257 return 1;
258 case PIPE_CAP_FAKE_SW_MSAA: {
259 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
260 return lscreen->use_tgsi ? 1 : 0;
261 }
262 case PIPE_CAP_TEXTURE_QUERY_LOD:
263 case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
264 case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
265 case PIPE_CAP_DOUBLES:
266 case PIPE_CAP_INT64:
267 case PIPE_CAP_INT64_DIVMOD:
268 case PIPE_CAP_QUERY_SO_OVERFLOW:
269 case PIPE_CAP_TGSI_DIV:
270 return 1;
271
272 case PIPE_CAP_VENDOR_ID:
273 return 0xFFFFFFFF;
274 case PIPE_CAP_DEVICE_ID:
275 return 0xFFFFFFFF;
276 case PIPE_CAP_ACCELERATED:
277 return 0;
278 case PIPE_CAP_VIDEO_MEMORY: {
279 /* XXX: Do we want to return the full amount fo system memory ? */
280 uint64_t system_memory;
281
282 if (!os_get_total_physical_memory(&system_memory))
283 return 0;
284
285 if (sizeof(void *) == 4)
286 /* Cap to 2 GB on 32 bits system. We do this because llvmpipe does
287 * eat application memory, which is quite limited on 32 bits. App
288 * shouldn't expect too much available memory. */
289 system_memory = MIN2(system_memory, 2048 << 20);
290
291 return (int)(system_memory >> 20);
292 }
293 case PIPE_CAP_UMA:
294 return 0;
295 case PIPE_CAP_CLIP_HALFZ:
296 return 1;
297 case PIPE_CAP_POLYGON_OFFSET_CLAMP:
298 case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
299 case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
300 return 1;
301 case PIPE_CAP_CULL_DISTANCE:
302 return 1;
303 case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
304 return 1;
305 case PIPE_CAP_CLEAR_TEXTURE:
306 return 1;
307 case PIPE_CAP_MAX_VARYINGS:
308 return 32;
309 case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
310 return 16;
311 case PIPE_CAP_QUERY_BUFFER_OBJECT:
312 return 1;
313 case PIPE_CAP_DRAW_PARAMETERS:
314 return 1;
315 case PIPE_CAP_FBFETCH:
316 return 8;
317 case PIPE_CAP_FBFETCH_COHERENT:
318 return 0;
319 case PIPE_CAP_MULTI_DRAW_INDIRECT:
320 case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
321 return 1;
322 case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
323 case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
324 return 1;
325 case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
326 return 32;
327 case PIPE_CAP_RASTERIZER_SUBPIXEL_BITS:
328 return 8;
329 case PIPE_CAP_PCI_GROUP:
330 case PIPE_CAP_PCI_BUS:
331 case PIPE_CAP_PCI_DEVICE:
332 case PIPE_CAP_PCI_FUNCTION:
333 case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
334 case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
335 return 0;
336
337 case PIPE_CAP_SHAREABLE_SHADERS:
338 /* Can't expose shareable shaders because the draw shaders reference the
339 * draw module's state, which is per-context.
340 */
341 return 0;
342
343 case PIPE_CAP_MAX_GS_INVOCATIONS:
344 return 32;
345 case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
346 return LP_MAX_TGSI_SHADER_BUFFER_SIZE;
347 case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
348 case PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE:
349 case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
350 case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
351 return 1;
352 #ifdef PIPE_MEMORY_FD
353 case PIPE_CAP_MEMOBJ:
354 return 1;
355 #endif
356 case PIPE_CAP_SAMPLER_REDUCTION_MINMAX:
357 case PIPE_CAP_TGSI_TXQS:
358 case PIPE_CAP_TGSI_VOTE:
359 case PIPE_CAP_LOAD_CONSTBUF:
360 case PIPE_CAP_TEXTURE_MULTISAMPLE:
361 case PIPE_CAP_SAMPLE_SHADING:
362 case PIPE_CAP_GL_SPIRV:
363 case PIPE_CAP_POST_DEPTH_COVERAGE:
364 case PIPE_CAP_PACKED_UNIFORMS: {
365 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
366 return !lscreen->use_tgsi;
367 }
368 default:
369 return u_pipe_screen_get_param_defaults(screen, param);
370 }
371 }
372
373 static int
llvmpipe_get_shader_param(struct pipe_screen * screen,enum pipe_shader_type shader,enum pipe_shader_cap param)374 llvmpipe_get_shader_param(struct pipe_screen *screen,
375 enum pipe_shader_type shader,
376 enum pipe_shader_cap param)
377 {
378 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
379 switch(shader)
380 {
381 case PIPE_SHADER_COMPUTE:
382 if ((lscreen->allow_cl) && param == PIPE_SHADER_CAP_SUPPORTED_IRS)
383 return (1 << PIPE_SHADER_IR_TGSI) | (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_NIR_SERIALIZED);
384 FALLTHROUGH;
385 case PIPE_SHADER_FRAGMENT:
386 if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
387 if (lscreen->use_tgsi)
388 return PIPE_SHADER_IR_TGSI;
389 else
390 return PIPE_SHADER_IR_NIR;
391 }
392
393 return gallivm_get_shader_param(param);
394 case PIPE_SHADER_TESS_CTRL:
395 case PIPE_SHADER_TESS_EVAL:
396 /* Tessellation shader needs llvm coroutines support */
397 if (!GALLIVM_HAVE_CORO || lscreen->use_tgsi)
398 return 0;
399 FALLTHROUGH;
400 case PIPE_SHADER_VERTEX:
401 case PIPE_SHADER_GEOMETRY:
402 if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
403 if (lscreen->use_tgsi)
404 return PIPE_SHADER_IR_TGSI;
405 else
406 return PIPE_SHADER_IR_NIR;
407 }
408
409 switch (param) {
410 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
411 /* At this time, the draw module and llvmpipe driver only
412 * support vertex shader texture lookups when LLVM is enabled in
413 * the draw module.
414 */
415 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
416 return PIPE_MAX_SAMPLERS;
417 else
418 return 0;
419 case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
420 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
421 return PIPE_MAX_SHADER_SAMPLER_VIEWS;
422 else
423 return 0;
424 default:
425 return draw_get_shader_param(shader, param);
426 }
427 default:
428 return 0;
429 }
430 }
431
432 static float
llvmpipe_get_paramf(struct pipe_screen * screen,enum pipe_capf param)433 llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
434 {
435 switch (param) {
436 case PIPE_CAPF_MAX_LINE_WIDTH:
437 FALLTHROUGH;
438 case PIPE_CAPF_MAX_LINE_WIDTH_AA:
439 return 255.0; /* arbitrary */
440 case PIPE_CAPF_MAX_POINT_WIDTH:
441 FALLTHROUGH;
442 case PIPE_CAPF_MAX_POINT_WIDTH_AA:
443 return LP_MAX_POINT_WIDTH; /* arbitrary */
444 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
445 return 16.0; /* not actually signficant at this time */
446 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
447 return 16.0; /* arbitrary */
448 case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
449 return 0.0;
450 case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
451 return 0.0;
452 case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
453 return 0.0;
454 }
455 /* should only get here on unhandled cases */
456 debug_printf("Unexpected PIPE_CAP %d query\n", param);
457 return 0.0;
458 }
459
460 static int
llvmpipe_get_compute_param(struct pipe_screen * _screen,enum pipe_shader_ir ir_type,enum pipe_compute_cap param,void * ret)461 llvmpipe_get_compute_param(struct pipe_screen *_screen,
462 enum pipe_shader_ir ir_type,
463 enum pipe_compute_cap param,
464 void *ret)
465 {
466 switch (param) {
467 case PIPE_COMPUTE_CAP_IR_TARGET:
468 return 0;
469 case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
470 if (ret) {
471 uint64_t *grid_size = ret;
472 grid_size[0] = 65535;
473 grid_size[1] = 65535;
474 grid_size[2] = 65535;
475 }
476 return 3 * sizeof(uint64_t) ;
477 case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
478 if (ret) {
479 uint64_t *block_size = ret;
480 block_size[0] = 1024;
481 block_size[1] = 1024;
482 block_size[2] = 1024;
483 }
484 return 3 * sizeof(uint64_t);
485 case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
486 if (ret) {
487 uint64_t *max_threads_per_block = ret;
488 *max_threads_per_block = 1024;
489 }
490 return sizeof(uint64_t);
491 case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
492 if (ret) {
493 uint64_t *max_local_size = ret;
494 *max_local_size = 32768;
495 }
496 return sizeof(uint64_t);
497 case PIPE_COMPUTE_CAP_GRID_DIMENSION:
498 if (ret) {
499 uint32_t *grid_dim = ret;
500 *grid_dim = 3;
501 }
502 return sizeof(uint32_t);
503 case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
504 if (ret) {
505 uint64_t *max_global_size = ret;
506 *max_global_size = (1ULL << 31);
507 }
508 return sizeof(uint64_t);
509 case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
510 if (ret) {
511 uint64_t *max_mem_alloc_size = ret;
512 *max_mem_alloc_size = (1ULL << 31);
513 }
514 return sizeof(uint64_t);
515 case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
516 if (ret) {
517 uint64_t *max_private = ret;
518 *max_private = (1UL << 31);
519 }
520 return sizeof(uint64_t);
521 case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
522 if (ret) {
523 uint64_t *max_input = ret;
524 *max_input = 1576;
525 }
526 return sizeof(uint64_t);
527 case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
528 if (ret) {
529 uint32_t *images = ret;
530 *images = LP_MAX_TGSI_SHADER_IMAGES;
531 }
532 return sizeof(uint32_t);
533 case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
534 return 0;
535 case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
536 if (ret) {
537 uint32_t *subgroup_size = ret;
538 *subgroup_size = 32;
539 }
540 return sizeof(uint32_t);
541 case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
542 if (ret) {
543 uint32_t *max_compute_units = ret;
544 *max_compute_units = 8;
545 }
546 return sizeof(uint32_t);
547 case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
548 if (ret) {
549 uint32_t *max_clock_freq = ret;
550 *max_clock_freq = 300;
551 }
552 return sizeof(uint32_t);
553 case PIPE_COMPUTE_CAP_ADDRESS_BITS:
554 if (ret) {
555 uint32_t *address_bits = ret;
556 *address_bits = 64;
557 }
558 return sizeof(uint32_t);
559 }
560 return 0;
561 }
562
563 static const struct nir_shader_compiler_options gallivm_nir_options = {
564 .lower_scmp = true,
565 .lower_flrp32 = true,
566 .lower_flrp64 = true,
567 .lower_fsat = true,
568 .lower_bitfield_insert_to_shifts = true,
569 .lower_bitfield_extract_to_shifts = true,
570 .lower_fdot = true,
571 .lower_fdph = true,
572 .lower_ffma16 = true,
573 .lower_ffma32 = true,
574 .lower_ffma64 = true,
575 .lower_flrp16 = true,
576 .lower_fmod = true,
577 .lower_hadd = true,
578 .lower_uadd_sat = true,
579 .lower_iadd_sat = true,
580 .lower_ldexp = true,
581 .lower_pack_snorm_2x16 = true,
582 .lower_pack_snorm_4x8 = true,
583 .lower_pack_unorm_2x16 = true,
584 .lower_pack_unorm_4x8 = true,
585 .lower_pack_half_2x16 = true,
586 .lower_pack_split = true,
587 .lower_unpack_snorm_2x16 = true,
588 .lower_unpack_snorm_4x8 = true,
589 .lower_unpack_unorm_2x16 = true,
590 .lower_unpack_unorm_4x8 = true,
591 .lower_unpack_half_2x16 = true,
592 .lower_extract_byte = true,
593 .lower_extract_word = true,
594 .lower_insert_byte = true,
595 .lower_insert_word = true,
596 .lower_rotate = true,
597 .lower_uadd_carry = true,
598 .lower_usub_borrow = true,
599 .lower_mul_2x32_64 = true,
600 .lower_ifind_msb = true,
601 .max_unroll_iterations = 32,
602 .use_interpolated_input_intrinsics = true,
603 .lower_to_scalar = true,
604 .lower_uniforms_to_ubo = true,
605 .lower_vector_cmp = true,
606 .lower_device_index_to_zero = true,
607 .support_16bit_alu = true,
608 .lower_fisnormal = true,
609 };
610
611 static char *
llvmpipe_finalize_nir(struct pipe_screen * screen,void * nirptr)612 llvmpipe_finalize_nir(struct pipe_screen *screen,
613 void *nirptr)
614 {
615 struct nir_shader *nir = (struct nir_shader *)nirptr;
616 lp_build_opt_nir(nir);
617 return NULL;
618 }
619
620 static inline const void *
llvmpipe_get_compiler_options(struct pipe_screen * screen,enum pipe_shader_ir ir,enum pipe_shader_type shader)621 llvmpipe_get_compiler_options(struct pipe_screen *screen,
622 enum pipe_shader_ir ir,
623 enum pipe_shader_type shader)
624 {
625 assert(ir == PIPE_SHADER_IR_NIR);
626 return &gallivm_nir_options;
627 }
628
629 /**
630 * Query format support for creating a texture, drawing surface, etc.
631 * \param format the format to test
632 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
633 */
634 static bool
llvmpipe_is_format_supported(struct pipe_screen * _screen,enum pipe_format format,enum pipe_texture_target target,unsigned sample_count,unsigned storage_sample_count,unsigned bind)635 llvmpipe_is_format_supported( struct pipe_screen *_screen,
636 enum pipe_format format,
637 enum pipe_texture_target target,
638 unsigned sample_count,
639 unsigned storage_sample_count,
640 unsigned bind)
641 {
642 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
643 struct sw_winsys *winsys = screen->winsys;
644 const struct util_format_description *format_desc;
645
646 format_desc = util_format_description(format);
647 if (!format_desc)
648 return false;
649
650 assert(target == PIPE_BUFFER ||
651 target == PIPE_TEXTURE_1D ||
652 target == PIPE_TEXTURE_1D_ARRAY ||
653 target == PIPE_TEXTURE_2D ||
654 target == PIPE_TEXTURE_2D_ARRAY ||
655 target == PIPE_TEXTURE_RECT ||
656 target == PIPE_TEXTURE_3D ||
657 target == PIPE_TEXTURE_CUBE ||
658 target == PIPE_TEXTURE_CUBE_ARRAY);
659
660 if (sample_count != 0 && sample_count != 1 && sample_count != 4)
661 return false;
662
663 if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
664 return false;
665
666 if (bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SHADER_IMAGE)) {
667 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) {
668 /* this is a lie actually other formats COULD exist where we would fail */
669 if (format_desc->nr_channels < 3)
670 return false;
671 }
672 else if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB)
673 return false;
674
675 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN &&
676 format != PIPE_FORMAT_R11G11B10_FLOAT)
677 return false;
678
679 assert(format_desc->block.width == 1);
680 assert(format_desc->block.height == 1);
681
682 if (format_desc->is_mixed)
683 return false;
684
685 if (!format_desc->is_array && !format_desc->is_bitmask &&
686 format != PIPE_FORMAT_R11G11B10_FLOAT)
687 return false;
688 }
689
690 if (bind & PIPE_BIND_SHADER_IMAGE) {
691 switch (format) {
692 case PIPE_FORMAT_R32G32B32A32_FLOAT:
693 case PIPE_FORMAT_R16G16B16A16_FLOAT:
694 case PIPE_FORMAT_R32G32_FLOAT:
695 case PIPE_FORMAT_R16G16_FLOAT:
696 case PIPE_FORMAT_R11G11B10_FLOAT:
697 case PIPE_FORMAT_R32_FLOAT:
698 case PIPE_FORMAT_R16_FLOAT:
699 case PIPE_FORMAT_R32G32B32A32_UINT:
700 case PIPE_FORMAT_R16G16B16A16_UINT:
701 case PIPE_FORMAT_R10G10B10A2_UINT:
702 case PIPE_FORMAT_R8G8B8A8_UINT:
703 case PIPE_FORMAT_R32G32_UINT:
704 case PIPE_FORMAT_R16G16_UINT:
705 case PIPE_FORMAT_R8G8_UINT:
706 case PIPE_FORMAT_R32_UINT:
707 case PIPE_FORMAT_R16_UINT:
708 case PIPE_FORMAT_R8_UINT:
709 case PIPE_FORMAT_R32G32B32A32_SINT:
710 case PIPE_FORMAT_R16G16B16A16_SINT:
711 case PIPE_FORMAT_R8G8B8A8_SINT:
712 case PIPE_FORMAT_R32G32_SINT:
713 case PIPE_FORMAT_R16G16_SINT:
714 case PIPE_FORMAT_R8G8_SINT:
715 case PIPE_FORMAT_R32_SINT:
716 case PIPE_FORMAT_R16_SINT:
717 case PIPE_FORMAT_R8_SINT:
718 case PIPE_FORMAT_R16G16B16A16_UNORM:
719 case PIPE_FORMAT_R10G10B10A2_UNORM:
720 case PIPE_FORMAT_R8G8B8A8_UNORM:
721 case PIPE_FORMAT_R16G16_UNORM:
722 case PIPE_FORMAT_R8G8_UNORM:
723 case PIPE_FORMAT_R16_UNORM:
724 case PIPE_FORMAT_R8_UNORM:
725 case PIPE_FORMAT_R16G16B16A16_SNORM:
726 case PIPE_FORMAT_R8G8B8A8_SNORM:
727 case PIPE_FORMAT_R16G16_SNORM:
728 case PIPE_FORMAT_R8G8_SNORM:
729 case PIPE_FORMAT_R16_SNORM:
730 case PIPE_FORMAT_R8_SNORM:
731 break;
732
733 default:
734 return false;
735 }
736 }
737
738 if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
739 ((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
740 /* Disable all 3-channel formats, where channel size != 32 bits.
741 * In some cases we run into crashes (in generate_unswizzled_blend()),
742 * for 3-channel RGB16 variants, there was an apparent LLVM bug.
743 * In any case, disabling the shallower 3-channel formats avoids a
744 * number of issues with GL_ARB_copy_image support.
745 */
746 if (format_desc->is_array &&
747 format_desc->nr_channels == 3 &&
748 format_desc->block.bits != 96) {
749 return false;
750 }
751
752 /* Disable 64-bit integer formats for RT/samplers.
753 * VK CTS crashes with these and they don't make much sense.
754 */
755 int c = util_format_get_first_non_void_channel(format_desc->format);
756 if (c >= 0) {
757 if (format_desc->channel[c].pure_integer && format_desc->channel[c].size == 64)
758 return false;
759 }
760
761 }
762
763 if (!(bind & PIPE_BIND_VERTEX_BUFFER) &&
764 util_format_is_scaled(format))
765 return false;
766
767 if (bind & PIPE_BIND_DISPLAY_TARGET) {
768 if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
769 return false;
770 }
771
772 if (bind & PIPE_BIND_DEPTH_STENCIL) {
773 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
774 return false;
775
776 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
777 return false;
778 }
779
780 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC ||
781 format_desc->layout == UTIL_FORMAT_LAYOUT_ATC) {
782 /* Software decoding is not hooked up. */
783 return false;
784 }
785
786 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
787 format != PIPE_FORMAT_ETC1_RGB8)
788 return false;
789
790 /*
791 * Everything can be supported by u_format
792 * (those without fetch_rgba_float might be not but shouldn't hit that)
793 */
794
795 return true;
796 }
797
798
799
800
801 static void
llvmpipe_flush_frontbuffer(struct pipe_screen * _screen,struct pipe_context * _pipe,struct pipe_resource * resource,unsigned level,unsigned layer,void * context_private,struct pipe_box * sub_box)802 llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
803 struct pipe_context *_pipe,
804 struct pipe_resource *resource,
805 unsigned level, unsigned layer,
806 void *context_private,
807 struct pipe_box *sub_box)
808 {
809 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
810 struct sw_winsys *winsys = screen->winsys;
811 struct llvmpipe_resource *texture = llvmpipe_resource(resource);
812
813 assert(texture->dt);
814 if (texture->dt)
815 winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
816 }
817
818 static void
llvmpipe_destroy_screen(struct pipe_screen * _screen)819 llvmpipe_destroy_screen( struct pipe_screen *_screen )
820 {
821 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
822 struct sw_winsys *winsys = screen->winsys;
823
824 if (screen->cs_tpool)
825 lp_cs_tpool_destroy(screen->cs_tpool);
826
827 if (screen->rast)
828 lp_rast_destroy(screen->rast);
829
830 lp_jit_screen_cleanup(screen);
831
832 if (LP_DEBUG & DEBUG_CACHE_STATS)
833 printf("disk shader cache: hits = %u, misses = %u\n", screen->num_disk_shader_cache_hits,
834 screen->num_disk_shader_cache_misses);
835 disk_cache_destroy(screen->disk_shader_cache);
836 if(winsys->destroy)
837 winsys->destroy(winsys);
838
839 glsl_type_singleton_decref();
840
841 mtx_destroy(&screen->rast_mutex);
842 mtx_destroy(&screen->cs_mutex);
843 FREE(screen);
844 }
845
846
847
848
849 /**
850 * Fence reference counting.
851 */
852 static void
llvmpipe_fence_reference(struct pipe_screen * screen,struct pipe_fence_handle ** ptr,struct pipe_fence_handle * fence)853 llvmpipe_fence_reference(struct pipe_screen *screen,
854 struct pipe_fence_handle **ptr,
855 struct pipe_fence_handle *fence)
856 {
857 struct lp_fence **old = (struct lp_fence **) ptr;
858 struct lp_fence *f = (struct lp_fence *) fence;
859
860 lp_fence_reference(old, f);
861 }
862
863
864 /**
865 * Wait for the fence to finish.
866 */
867 static bool
llvmpipe_fence_finish(struct pipe_screen * screen,struct pipe_context * ctx,struct pipe_fence_handle * fence_handle,uint64_t timeout)868 llvmpipe_fence_finish(struct pipe_screen *screen,
869 struct pipe_context *ctx,
870 struct pipe_fence_handle *fence_handle,
871 uint64_t timeout)
872 {
873 struct lp_fence *f = (struct lp_fence *) fence_handle;
874
875 if (!timeout)
876 return lp_fence_signalled(f);
877
878 if (!lp_fence_signalled(f)) {
879 if (timeout != PIPE_TIMEOUT_INFINITE)
880 return lp_fence_timedwait(f, timeout);
881
882 lp_fence_wait(f);
883 }
884 return true;
885 }
886
887 static uint64_t
llvmpipe_get_timestamp(struct pipe_screen * _screen)888 llvmpipe_get_timestamp(struct pipe_screen *_screen)
889 {
890 return os_time_get_nano();
891 }
892
update_cache_sha1_cpu(struct mesa_sha1 * ctx)893 static void update_cache_sha1_cpu(struct mesa_sha1 *ctx)
894 {
895 const struct util_cpu_caps_t *cpu_caps = util_get_cpu_caps();
896 /*
897 * Don't need the cpu cache affinity stuff. The rest
898 * is contained in first 5 dwords.
899 */
900 STATIC_ASSERT(offsetof(struct util_cpu_caps_t, num_L3_caches) == 5 * sizeof(uint32_t));
901 _mesa_sha1_update(ctx, cpu_caps, 5 * sizeof(uint32_t));
902 }
903
lp_disk_cache_create(struct llvmpipe_screen * screen)904 static void lp_disk_cache_create(struct llvmpipe_screen *screen)
905 {
906 struct mesa_sha1 ctx;
907 unsigned gallivm_perf = gallivm_get_perf_flags();
908 unsigned char sha1[20];
909 char cache_id[20 * 2 + 1];
910 _mesa_sha1_init(&ctx);
911
912 if (!disk_cache_get_function_identifier(lp_disk_cache_create, &ctx) ||
913 !disk_cache_get_function_identifier(LLVMLinkInMCJIT, &ctx))
914 return;
915
916 _mesa_sha1_update(&ctx, &gallivm_perf, sizeof(gallivm_perf));
917 update_cache_sha1_cpu(&ctx);
918 _mesa_sha1_final(&ctx, sha1);
919 disk_cache_format_hex_id(cache_id, sha1, 20 * 2);
920
921 screen->disk_shader_cache = disk_cache_create("llvmpipe", cache_id, 0);
922 }
923
lp_get_disk_shader_cache(struct pipe_screen * _screen)924 static struct disk_cache *lp_get_disk_shader_cache(struct pipe_screen *_screen)
925 {
926 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
927
928 return screen->disk_shader_cache;
929 }
930
lp_disk_cache_find_shader(struct llvmpipe_screen * screen,struct lp_cached_code * cache,unsigned char ir_sha1_cache_key[20])931 void lp_disk_cache_find_shader(struct llvmpipe_screen *screen,
932 struct lp_cached_code *cache,
933 unsigned char ir_sha1_cache_key[20])
934 {
935 unsigned char sha1[CACHE_KEY_SIZE];
936
937 if (!screen->disk_shader_cache)
938 return;
939 disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
940
941 size_t binary_size;
942 uint8_t *buffer = disk_cache_get(screen->disk_shader_cache, sha1, &binary_size);
943 if (!buffer) {
944 cache->data_size = 0;
945 p_atomic_inc(&screen->num_disk_shader_cache_misses);
946 return;
947 }
948 cache->data_size = binary_size;
949 cache->data = buffer;
950 p_atomic_inc(&screen->num_disk_shader_cache_hits);
951 }
952
lp_disk_cache_insert_shader(struct llvmpipe_screen * screen,struct lp_cached_code * cache,unsigned char ir_sha1_cache_key[20])953 void lp_disk_cache_insert_shader(struct llvmpipe_screen *screen,
954 struct lp_cached_code *cache,
955 unsigned char ir_sha1_cache_key[20])
956 {
957 unsigned char sha1[CACHE_KEY_SIZE];
958
959 if (!screen->disk_shader_cache || !cache->data_size || cache->dont_cache)
960 return;
961 disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
962 disk_cache_put(screen->disk_shader_cache, sha1, cache->data, cache->data_size, NULL);
963 }
964
965 bool
llvmpipe_screen_late_init(struct llvmpipe_screen * screen)966 llvmpipe_screen_late_init(struct llvmpipe_screen *screen)
967 {
968 bool ret = true;
969 mtx_lock(&screen->late_mutex);
970
971 if (screen->late_init_done)
972 goto out;
973
974 screen->rast = lp_rast_create(screen->num_threads);
975 if (!screen->rast) {
976 ret = false;
977 goto out;
978 }
979
980 screen->cs_tpool = lp_cs_tpool_create(screen->num_threads);
981 if (!screen->cs_tpool) {
982 lp_rast_destroy(screen->rast);
983 ret = false;
984 goto out;
985 }
986
987 lp_disk_cache_create(screen);
988 screen->late_init_done = true;
989 out:
990 mtx_unlock(&screen->late_mutex);
991 return ret;
992 }
993
994 /**
995 * Create a new pipe_screen object
996 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
997 */
998 struct pipe_screen *
llvmpipe_create_screen(struct sw_winsys * winsys)999 llvmpipe_create_screen(struct sw_winsys *winsys)
1000 {
1001 struct llvmpipe_screen *screen;
1002
1003 util_cpu_detect();
1004
1005 glsl_type_singleton_init_or_ref();
1006
1007 #ifdef DEBUG
1008 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
1009 #endif
1010
1011 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );
1012
1013 screen = CALLOC_STRUCT(llvmpipe_screen);
1014 if (!screen)
1015 return NULL;
1016
1017 if (!lp_jit_screen_init(screen)) {
1018 FREE(screen);
1019 return NULL;
1020 }
1021
1022 screen->winsys = winsys;
1023
1024 screen->base.destroy = llvmpipe_destroy_screen;
1025
1026 screen->base.get_name = llvmpipe_get_name;
1027 screen->base.get_vendor = llvmpipe_get_vendor;
1028 screen->base.get_device_vendor = llvmpipe_get_vendor; // TODO should be the CPU vendor
1029 screen->base.get_param = llvmpipe_get_param;
1030 screen->base.get_shader_param = llvmpipe_get_shader_param;
1031 screen->base.get_compute_param = llvmpipe_get_compute_param;
1032 screen->base.get_paramf = llvmpipe_get_paramf;
1033 screen->base.get_compiler_options = llvmpipe_get_compiler_options;
1034 screen->base.is_format_supported = llvmpipe_is_format_supported;
1035
1036 screen->base.context_create = llvmpipe_create_context;
1037 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
1038 screen->base.fence_reference = llvmpipe_fence_reference;
1039 screen->base.fence_finish = llvmpipe_fence_finish;
1040
1041 screen->base.get_timestamp = llvmpipe_get_timestamp;
1042
1043 screen->base.finalize_nir = llvmpipe_finalize_nir;
1044
1045 screen->base.get_disk_shader_cache = lp_get_disk_shader_cache;
1046 llvmpipe_init_screen_resource_funcs(&screen->base);
1047
1048 screen->allow_cl = !!getenv("LP_CL");
1049 screen->use_tgsi = (LP_DEBUG & DEBUG_TGSI_IR);
1050 screen->num_threads = util_get_cpu_caps()->nr_cpus > 1 ? util_get_cpu_caps()->nr_cpus : 0;
1051 #ifdef EMBEDDED_DEVICE
1052 screen->num_threads = MIN2(screen->num_threads, 2);
1053 #endif
1054 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
1055 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
1056
1057 lp_build_init(); /* get lp_native_vector_width initialised */
1058
1059 snprintf(screen->renderer_string, sizeof(screen->renderer_string), "llvmpipe (LLVM " MESA_LLVM_VERSION_STRING ", %u bits)", lp_native_vector_width );
1060
1061 (void) mtx_init(&screen->cs_mutex, mtx_plain);
1062 (void) mtx_init(&screen->rast_mutex, mtx_plain);
1063
1064 (void) mtx_init(&screen->late_mutex, mtx_plain);
1065
1066 return &screen->base;
1067 }
1068