llvmpipe: add infrastructure for disk cache support
[mesa.git] / src / gallium / drivers / llvmpipe / lp_screen.c
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 { "mem", DEBUG_MEM, NULL },
74 { "fs", DEBUG_FS, NULL },
75 { "cs", DEBUG_CS, NULL },
76 { "tgsi_ir", DEBUG_TGSI_IR, NULL },
77 { "cl", DEBUG_CL, NULL },
78 { "cache_stats", DEBUG_CACHE_STATS, NULL },
79 DEBUG_NAMED_VALUE_END
80 };
81 #endif
82
83 int LP_PERF = 0;
84 static const struct debug_named_value lp_perf_flags[] = {
85 { "texmem", PERF_TEX_MEM, NULL },
86 { "no_mipmap", PERF_NO_MIPMAPS, NULL },
87 { "no_linear", PERF_NO_LINEAR, NULL },
88 { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL },
89 { "no_tex", PERF_NO_TEX, NULL },
90 { "no_blend", PERF_NO_BLEND, NULL },
91 { "no_depth", PERF_NO_DEPTH, NULL },
92 { "no_alphatest", PERF_NO_ALPHATEST, NULL },
93 DEBUG_NAMED_VALUE_END
94 };
95
96
97 static const char *
98 llvmpipe_get_vendor(struct pipe_screen *screen)
99 {
100 return "VMware, Inc.";
101 }
102
103
104 static const char *
105 llvmpipe_get_name(struct pipe_screen *screen)
106 {
107 static char buf[100];
108 snprintf(buf, sizeof(buf), "llvmpipe (LLVM " MESA_LLVM_VERSION_STRING ", %u bits)",
109 lp_native_vector_width );
110 return buf;
111 }
112
113
114 static int
115 llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
116 {
117 switch (param) {
118 case PIPE_CAP_NPOT_TEXTURES:
119 case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
120 case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
121 return 1;
122 case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
123 case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
124 case PIPE_CAP_VERTEX_SHADER_SATURATE:
125 return 1;
126 case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
127 return 1;
128 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
129 return PIPE_MAX_SO_BUFFERS;
130 case PIPE_CAP_ANISOTROPIC_FILTER:
131 return 0;
132 case PIPE_CAP_POINT_SPRITE:
133 return 1;
134 case PIPE_CAP_MAX_RENDER_TARGETS:
135 return PIPE_MAX_COLOR_BUFS;
136 case PIPE_CAP_OCCLUSION_QUERY:
137 return 1;
138 case PIPE_CAP_QUERY_TIME_ELAPSED:
139 return 0;
140 case PIPE_CAP_QUERY_TIMESTAMP:
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 return 1;
149 case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
150 case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
151 return 0;
152 case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
153 return 1 << (LP_MAX_TEXTURE_2D_LEVELS - 1);
154 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
155 return LP_MAX_TEXTURE_3D_LEVELS;
156 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
157 return LP_MAX_TEXTURE_CUBE_LEVELS;
158 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
159 return LP_MAX_TEXTURE_ARRAY_LAYERS;
160 case PIPE_CAP_BLEND_EQUATION_SEPARATE:
161 return 1;
162 case PIPE_CAP_INDEP_BLEND_ENABLE:
163 return 1;
164 case PIPE_CAP_INDEP_BLEND_FUNC:
165 return 1;
166 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
167 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
168 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
169 return 1;
170 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
171 case PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE:
172 return 0;
173 case PIPE_CAP_PRIMITIVE_RESTART:
174 return 1;
175 case PIPE_CAP_DEPTH_CLIP_DISABLE:
176 return 1;
177 case PIPE_CAP_SHADER_STENCIL_EXPORT:
178 return 1;
179 case PIPE_CAP_TGSI_INSTANCEID:
180 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
181 case PIPE_CAP_START_INSTANCE:
182 return 1;
183 case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
184 return 0;
185 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
186 return 1;
187 case PIPE_CAP_SEAMLESS_CUBE_MAP:
188 case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
189 return 1;
190 /* this is a lie could support arbitrary large offsets */
191 case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
192 case PIPE_CAP_MIN_TEXEL_OFFSET:
193 return -32;
194 case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
195 case PIPE_CAP_MAX_TEXEL_OFFSET:
196 return 31;
197 case PIPE_CAP_CONDITIONAL_RENDER:
198 case PIPE_CAP_TEXTURE_BARRIER:
199 return 1;
200 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
201 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
202 return 16*4;
203 case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
204 case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
205 return 1024;
206 case PIPE_CAP_MAX_VERTEX_STREAMS: {
207 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
208 return lscreen->use_tgsi ? 1 : 4;
209 }
210 case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
211 return 2048;
212 case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
213 case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
214 return 1;
215 case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
216 return 0;
217 case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
218 case PIPE_CAP_VERTEX_COLOR_CLAMPED:
219 return 1;
220 case PIPE_CAP_GLSL_FEATURE_LEVEL:
221 return 330;
222 case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
223 return 140;
224 case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
225 return 0;
226 case PIPE_CAP_COMPUTE:
227 return GALLIVM_HAVE_CORO;
228 case PIPE_CAP_USER_VERTEX_BUFFERS:
229 return 1;
230 case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
231 case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
232 case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
233 return 0;
234 case PIPE_CAP_TGSI_TEXCOORD:
235 case PIPE_CAP_DRAW_INDIRECT:
236 return 1;
237
238 case PIPE_CAP_CUBE_MAP_ARRAY:
239 return 1;
240 case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
241 return 16;
242 case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
243 return 64;
244 case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
245 return 1;
246 case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
247 return 65536;
248 case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
249 return 16;
250 case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
251 return 0;
252 case PIPE_CAP_MAX_VIEWPORTS:
253 return PIPE_MAX_VIEWPORTS;
254 case PIPE_CAP_ENDIANNESS:
255 return PIPE_ENDIAN_NATIVE;
256 case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
257 return 1;
258 case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
259 return 1;
260 case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
261 return 4;
262 case PIPE_CAP_TEXTURE_GATHER_SM5:
263 case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
264 return 0;
265 case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
266 return 1;
267 case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
268 return 1;
269 case PIPE_CAP_TGSI_TEX_TXF_LZ:
270 case PIPE_CAP_SAMPLER_VIEW_TARGET:
271 return 1;
272 case PIPE_CAP_FAKE_SW_MSAA: {
273 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
274 return lscreen->use_tgsi ? 1 : 0;
275 }
276 case PIPE_CAP_TEXTURE_QUERY_LOD:
277 case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
278 case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
279 case PIPE_CAP_DOUBLES:
280 case PIPE_CAP_INT64:
281 case PIPE_CAP_INT64_DIVMOD:
282 case PIPE_CAP_QUERY_SO_OVERFLOW:
283 case PIPE_CAP_TGSI_DIV:
284 return 1;
285
286 case PIPE_CAP_VENDOR_ID:
287 return 0xFFFFFFFF;
288 case PIPE_CAP_DEVICE_ID:
289 return 0xFFFFFFFF;
290 case PIPE_CAP_ACCELERATED:
291 return 0;
292 case PIPE_CAP_VIDEO_MEMORY: {
293 /* XXX: Do we want to return the full amount fo system memory ? */
294 uint64_t system_memory;
295
296 if (!os_get_total_physical_memory(&system_memory))
297 return 0;
298
299 if (sizeof(void *) == 4)
300 /* Cap to 2 GB on 32 bits system. We do this because llvmpipe does
301 * eat application memory, which is quite limited on 32 bits. App
302 * shouldn't expect too much available memory. */
303 system_memory = MIN2(system_memory, 2048 << 20);
304
305 return (int)(system_memory >> 20);
306 }
307 case PIPE_CAP_UMA:
308 return 0;
309 case PIPE_CAP_CLIP_HALFZ:
310 return 1;
311 case PIPE_CAP_VERTEXID_NOBASE:
312 return 0;
313 case PIPE_CAP_POLYGON_OFFSET_CLAMP:
314 case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
315 case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
316 return 1;
317 case PIPE_CAP_CULL_DISTANCE:
318 return 1;
319 case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
320 return 1;
321 case PIPE_CAP_CLEAR_TEXTURE:
322 return 1;
323 case PIPE_CAP_MAX_VARYINGS:
324 return 32;
325 case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
326 return 16;
327 case PIPE_CAP_QUERY_BUFFER_OBJECT:
328 return 1;
329 case PIPE_CAP_DRAW_PARAMETERS:
330 return 1;
331 case PIPE_CAP_MULTI_DRAW_INDIRECT:
332 case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
333 return 1;
334 case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
335 return 32;
336 case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
337 case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
338 case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
339 case PIPE_CAP_DEPTH_BOUNDS_TEST:
340 case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
341 case PIPE_CAP_SHAREABLE_SHADERS:
342 case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
343 case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
344 case PIPE_CAP_INVALIDATE_BUFFER:
345 case PIPE_CAP_GENERATE_MIPMAP:
346 case PIPE_CAP_STRING_MARKER:
347 case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
348 case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
349 case PIPE_CAP_QUERY_MEMORY_INFO:
350 case PIPE_CAP_PCI_GROUP:
351 case PIPE_CAP_PCI_BUS:
352 case PIPE_CAP_PCI_DEVICE:
353 case PIPE_CAP_PCI_FUNCTION:
354 case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
355 case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
356 case PIPE_CAP_MAX_WINDOW_RECTANGLES:
357 case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
358 case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
359 case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
360 case PIPE_CAP_NATIVE_FENCE_FD:
361 case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
362 case PIPE_CAP_FBFETCH:
363 case PIPE_CAP_TGSI_MUL_ZERO_WINS:
364 case PIPE_CAP_TGSI_CLOCK:
365 case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
366 case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
367 case PIPE_CAP_TGSI_BALLOT:
368 case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
369 case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
370 case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
371 case PIPE_CAP_POST_DEPTH_COVERAGE:
372 case PIPE_CAP_BINDLESS_TEXTURE:
373 case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
374 case PIPE_CAP_MEMOBJ:
375 case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
376 case PIPE_CAP_TILE_RASTER_ORDER:
377 case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
378 case PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS:
379 case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
380 case PIPE_CAP_CONTEXT_PRIORITY_MASK:
381 case PIPE_CAP_FENCE_SIGNAL:
382 case PIPE_CAP_CONSTBUF0_FLAGS:
383 case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
384 case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
385 case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
386 case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
387 case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
388 case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
389 case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
390 return 0;
391 case PIPE_CAP_MAX_GS_INVOCATIONS:
392 return 32;
393 case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
394 return LP_MAX_TGSI_SHADER_BUFFER_SIZE;
395 case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
396 case PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE:
397 case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
398 return 1;
399 case PIPE_CAP_TGSI_TXQS:
400 case PIPE_CAP_TGSI_VOTE:
401 case PIPE_CAP_LOAD_CONSTBUF:
402 case PIPE_CAP_TEXTURE_MULTISAMPLE:
403 case PIPE_CAP_SAMPLE_SHADING:
404 case PIPE_CAP_PACKED_UNIFORMS: {
405 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
406 return !lscreen->use_tgsi;
407 }
408 default:
409 return u_pipe_screen_get_param_defaults(screen, param);
410 }
411 }
412
413 static int
414 llvmpipe_get_shader_param(struct pipe_screen *screen,
415 enum pipe_shader_type shader,
416 enum pipe_shader_cap param)
417 {
418 struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
419 switch(shader)
420 {
421 case PIPE_SHADER_COMPUTE:
422 if ((LP_DEBUG & DEBUG_CL) && param == PIPE_SHADER_CAP_SUPPORTED_IRS)
423 return (1 << PIPE_SHADER_IR_TGSI) | (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_NIR_SERIALIZED);
424 case PIPE_SHADER_FRAGMENT:
425 if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
426 if (lscreen->use_tgsi)
427 return PIPE_SHADER_IR_TGSI;
428 else
429 return PIPE_SHADER_IR_NIR;
430 }
431 switch (param) {
432 default:
433 return gallivm_get_shader_param(param);
434 }
435 case PIPE_SHADER_TESS_CTRL:
436 case PIPE_SHADER_TESS_EVAL:
437 /* Tessellation shader needs llvm coroutines support */
438 if (!GALLIVM_HAVE_CORO || lscreen->use_tgsi)
439 return 0;
440 case PIPE_SHADER_VERTEX:
441 case PIPE_SHADER_GEOMETRY:
442 if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
443 if (lscreen->use_tgsi)
444 return PIPE_SHADER_IR_TGSI;
445 else
446 return PIPE_SHADER_IR_NIR;
447 }
448
449 switch (param) {
450 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
451 /* At this time, the draw module and llvmpipe driver only
452 * support vertex shader texture lookups when LLVM is enabled in
453 * the draw module.
454 */
455 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
456 return PIPE_MAX_SAMPLERS;
457 else
458 return 0;
459 case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
460 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
461 return PIPE_MAX_SHADER_SAMPLER_VIEWS;
462 else
463 return 0;
464 default:
465 return draw_get_shader_param(shader, param);
466 }
467 default:
468 return 0;
469 }
470 }
471
472 static float
473 llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
474 {
475 switch (param) {
476 case PIPE_CAPF_MAX_LINE_WIDTH:
477 /* fall-through */
478 case PIPE_CAPF_MAX_LINE_WIDTH_AA:
479 return 255.0; /* arbitrary */
480 case PIPE_CAPF_MAX_POINT_WIDTH:
481 /* fall-through */
482 case PIPE_CAPF_MAX_POINT_WIDTH_AA:
483 return LP_MAX_POINT_WIDTH; /* arbitrary */
484 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
485 return 16.0; /* not actually signficant at this time */
486 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
487 return 16.0; /* arbitrary */
488 case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
489 return 0.0;
490 case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
491 return 0.0;
492 case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
493 return 0.0;
494 }
495 /* should only get here on unhandled cases */
496 debug_printf("Unexpected PIPE_CAP %d query\n", param);
497 return 0.0;
498 }
499
500 static int
501 llvmpipe_get_compute_param(struct pipe_screen *_screen,
502 enum pipe_shader_ir ir_type,
503 enum pipe_compute_cap param,
504 void *ret)
505 {
506 switch (param) {
507 case PIPE_COMPUTE_CAP_IR_TARGET:
508 return 0;
509 case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
510 if (ret) {
511 uint64_t *grid_size = ret;
512 grid_size[0] = 65535;
513 grid_size[1] = 65535;
514 grid_size[2] = 65535;
515 }
516 return 3 * sizeof(uint64_t) ;
517 case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
518 if (ret) {
519 uint64_t *block_size = ret;
520 block_size[0] = 1024;
521 block_size[1] = 1024;
522 block_size[2] = 1024;
523 }
524 return 3 * sizeof(uint64_t);
525 case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
526 if (ret) {
527 uint64_t *max_threads_per_block = ret;
528 *max_threads_per_block = 1024;
529 }
530 return sizeof(uint64_t);
531 case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
532 if (ret) {
533 uint64_t *max_local_size = ret;
534 *max_local_size = 32768;
535 }
536 return sizeof(uint64_t);
537 case PIPE_COMPUTE_CAP_GRID_DIMENSION:
538 if (ret) {
539 uint32_t *grid_dim = ret;
540 *grid_dim = 3;
541 }
542 return sizeof(uint32_t);
543 case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
544 if (ret) {
545 uint64_t *max_global_size = ret;
546 *max_global_size = (1ULL << 31);
547 }
548 return sizeof(uint64_t);
549 case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
550 if (ret) {
551 uint64_t *max_mem_alloc_size = ret;
552 *max_mem_alloc_size = (1ULL << 31);
553 }
554 return sizeof(uint64_t);
555 case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
556 if (ret) {
557 uint64_t *max_private = ret;
558 *max_private = (1UL << 31);
559 }
560 return sizeof(uint64_t);
561 case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
562 if (ret) {
563 uint64_t *max_input = ret;
564 *max_input = 4096;
565 }
566 return sizeof(uint64_t);
567 case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
568 if (ret) {
569 uint32_t *images = ret;
570 *images = 0;
571 }
572 return sizeof(uint32_t);
573 case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
574 return 0;
575 case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
576 if (ret) {
577 uint32_t *subgroup_size = ret;
578 *subgroup_size = 32;
579 }
580 return sizeof(uint32_t);
581 case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
582 if (ret) {
583 uint32_t *max_compute_units = ret;
584 *max_compute_units = 8;
585 }
586 return sizeof(uint32_t);
587 case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
588 if (ret) {
589 uint32_t *max_clock_freq = ret;
590 *max_clock_freq = 300;
591 }
592 return sizeof(uint32_t);
593 case PIPE_COMPUTE_CAP_ADDRESS_BITS:
594 if (ret) {
595 uint32_t *address_bits = ret;
596 *address_bits = 64;
597 }
598 return sizeof(uint32_t);
599 }
600 return 0;
601 }
602
603 static const struct nir_shader_compiler_options gallivm_nir_options = {
604 .lower_scmp = true,
605 .lower_flrp32 = true,
606 .lower_flrp64 = true,
607 .lower_fsat = true,
608 .lower_bitfield_insert_to_shifts = true,
609 .lower_bitfield_extract_to_shifts = true,
610 .lower_sub = true,
611 .lower_ffma = true,
612 .lower_fmod = true,
613 .lower_hadd = true,
614 .lower_add_sat = true,
615 .lower_pack_snorm_2x16 = true,
616 .lower_pack_snorm_4x8 = true,
617 .lower_pack_unorm_2x16 = true,
618 .lower_pack_unorm_4x8 = true,
619 .lower_unpack_snorm_2x16 = true,
620 .lower_unpack_snorm_4x8 = true,
621 .lower_unpack_unorm_2x16 = true,
622 .lower_unpack_unorm_4x8 = true,
623 .lower_extract_byte = true,
624 .lower_extract_word = true,
625 .lower_rotate = true,
626 .lower_ifind_msb = true,
627 .max_unroll_iterations = 32,
628 .use_interpolated_input_intrinsics = true,
629 .lower_to_scalar = true,
630 };
631
632 static void
633 llvmpipe_finalize_nir(struct pipe_screen *screen,
634 void *nirptr,
635 bool optimize)
636 {
637 struct nir_shader *nir = (struct nir_shader *)nirptr;
638 lp_build_opt_nir(nir);
639 }
640
641 static inline const void *
642 llvmpipe_get_compiler_options(struct pipe_screen *screen,
643 enum pipe_shader_ir ir,
644 enum pipe_shader_type shader)
645 {
646 assert(ir == PIPE_SHADER_IR_NIR);
647 return &gallivm_nir_options;
648 }
649
650 /**
651 * Query format support for creating a texture, drawing surface, etc.
652 * \param format the format to test
653 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
654 */
655 static bool
656 llvmpipe_is_format_supported( struct pipe_screen *_screen,
657 enum pipe_format format,
658 enum pipe_texture_target target,
659 unsigned sample_count,
660 unsigned storage_sample_count,
661 unsigned bind)
662 {
663 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
664 struct sw_winsys *winsys = screen->winsys;
665 const struct util_format_description *format_desc;
666
667 format_desc = util_format_description(format);
668 if (!format_desc)
669 return false;
670
671 assert(target == PIPE_BUFFER ||
672 target == PIPE_TEXTURE_1D ||
673 target == PIPE_TEXTURE_1D_ARRAY ||
674 target == PIPE_TEXTURE_2D ||
675 target == PIPE_TEXTURE_2D_ARRAY ||
676 target == PIPE_TEXTURE_RECT ||
677 target == PIPE_TEXTURE_3D ||
678 target == PIPE_TEXTURE_CUBE ||
679 target == PIPE_TEXTURE_CUBE_ARRAY);
680
681 if (sample_count != 0 && sample_count != 1 && sample_count != 4)
682 return false;
683
684 if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
685 return false;
686
687 if (bind & PIPE_BIND_RENDER_TARGET) {
688 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) {
689 /* this is a lie actually other formats COULD exist where we would fail */
690 if (format_desc->nr_channels < 3)
691 return false;
692 }
693 else if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB)
694 return false;
695
696 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN &&
697 format != PIPE_FORMAT_R11G11B10_FLOAT)
698 return false;
699
700 assert(format_desc->block.width == 1);
701 assert(format_desc->block.height == 1);
702
703 if (format_desc->is_mixed)
704 return false;
705
706 if (!format_desc->is_array && !format_desc->is_bitmask &&
707 format != PIPE_FORMAT_R11G11B10_FLOAT)
708 return false;
709 }
710
711 if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
712 ((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
713 /* Disable all 3-channel formats, where channel size != 32 bits.
714 * In some cases we run into crashes (in generate_unswizzled_blend()),
715 * for 3-channel RGB16 variants, there was an apparent LLVM bug.
716 * In any case, disabling the shallower 3-channel formats avoids a
717 * number of issues with GL_ARB_copy_image support.
718 */
719 if (format_desc->is_array &&
720 format_desc->nr_channels == 3 &&
721 format_desc->block.bits != 96) {
722 return false;
723 }
724 }
725
726 if (bind & PIPE_BIND_DISPLAY_TARGET) {
727 if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
728 return false;
729 }
730
731 if (bind & PIPE_BIND_DEPTH_STENCIL) {
732 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
733 return false;
734
735 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
736 return false;
737 }
738
739 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC ||
740 format_desc->layout == UTIL_FORMAT_LAYOUT_ATC ||
741 format_desc->layout == UTIL_FORMAT_LAYOUT_FXT1) {
742 /* Software decoding is not hooked up. */
743 return false;
744 }
745
746 if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
747 format != PIPE_FORMAT_ETC1_RGB8)
748 return false;
749
750 /*
751 * Everything can be supported by u_format
752 * (those without fetch_rgba_float might be not but shouldn't hit that)
753 */
754
755 return true;
756 }
757
758
759
760
761 static void
762 llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
763 struct pipe_resource *resource,
764 unsigned level, unsigned layer,
765 void *context_private,
766 struct pipe_box *sub_box)
767 {
768 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
769 struct sw_winsys *winsys = screen->winsys;
770 struct llvmpipe_resource *texture = llvmpipe_resource(resource);
771
772 assert(texture->dt);
773 if (texture->dt)
774 winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
775 }
776
777 static void
778 llvmpipe_destroy_screen( struct pipe_screen *_screen )
779 {
780 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
781 struct sw_winsys *winsys = screen->winsys;
782
783 if (screen->cs_tpool)
784 lp_cs_tpool_destroy(screen->cs_tpool);
785
786 if (screen->rast)
787 lp_rast_destroy(screen->rast);
788
789 lp_jit_screen_cleanup(screen);
790
791 if (LP_DEBUG & DEBUG_CACHE_STATS)
792 printf("disk shader cache: hits = %u, misses = %u\n", screen->num_disk_shader_cache_hits,
793 screen->num_disk_shader_cache_misses);
794 disk_cache_destroy(screen->disk_shader_cache);
795 if(winsys->destroy)
796 winsys->destroy(winsys);
797
798 glsl_type_singleton_decref();
799
800 mtx_destroy(&screen->rast_mutex);
801 mtx_destroy(&screen->cs_mutex);
802 FREE(screen);
803 }
804
805
806
807
808 /**
809 * Fence reference counting.
810 */
811 static void
812 llvmpipe_fence_reference(struct pipe_screen *screen,
813 struct pipe_fence_handle **ptr,
814 struct pipe_fence_handle *fence)
815 {
816 struct lp_fence **old = (struct lp_fence **) ptr;
817 struct lp_fence *f = (struct lp_fence *) fence;
818
819 lp_fence_reference(old, f);
820 }
821
822
823 /**
824 * Wait for the fence to finish.
825 */
826 static bool
827 llvmpipe_fence_finish(struct pipe_screen *screen,
828 struct pipe_context *ctx,
829 struct pipe_fence_handle *fence_handle,
830 uint64_t timeout)
831 {
832 struct lp_fence *f = (struct lp_fence *) fence_handle;
833
834 if (!timeout)
835 return lp_fence_signalled(f);
836
837 if (!lp_fence_signalled(f)) {
838 if (timeout != PIPE_TIMEOUT_INFINITE)
839 return lp_fence_timedwait(f, timeout);
840
841 lp_fence_wait(f);
842 }
843 return true;
844 }
845
846 static uint64_t
847 llvmpipe_get_timestamp(struct pipe_screen *_screen)
848 {
849 return os_time_get_nano();
850 }
851
852 static void lp_disk_cache_create(struct llvmpipe_screen *screen)
853 {
854 struct mesa_sha1 ctx;
855 unsigned char sha1[20];
856 char cache_id[20 * 2 + 1];
857 _mesa_sha1_init(&ctx);
858
859 if (!disk_cache_get_function_identifier(lp_disk_cache_create, &ctx) ||
860 !disk_cache_get_function_identifier(LLVMLinkInMCJIT, &ctx))
861 return;
862
863 _mesa_sha1_final(&ctx, sha1);
864 disk_cache_format_hex_id(cache_id, sha1, 20 * 2);
865
866 screen->disk_shader_cache = disk_cache_create("llvmpipe", cache_id, 0);
867 }
868
869 static struct disk_cache *lp_get_disk_shader_cache(struct pipe_screen *_screen)
870 {
871 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
872
873 return screen->disk_shader_cache;
874 }
875
876 void lp_disk_cache_find_shader(struct llvmpipe_screen *screen,
877 struct lp_cached_code *cache,
878 unsigned char ir_sha1_cache_key[20])
879 {
880 unsigned char sha1[CACHE_KEY_SIZE];
881
882 if (!screen->disk_shader_cache)
883 return;
884 disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
885
886 size_t binary_size;
887 uint8_t *buffer = disk_cache_get(screen->disk_shader_cache, sha1, &binary_size);
888 if (!buffer) {
889 cache->data_size = 0;
890 p_atomic_inc(&screen->num_disk_shader_cache_misses);
891 return;
892 }
893 cache->data_size = binary_size;
894 cache->data = buffer;
895 p_atomic_inc(&screen->num_disk_shader_cache_hits);
896 }
897
898 void lp_disk_cache_insert_shader(struct llvmpipe_screen *screen,
899 struct lp_cached_code *cache,
900 unsigned char ir_sha1_cache_key[20])
901 {
902 unsigned char sha1[CACHE_KEY_SIZE];
903
904 if (!screen->disk_shader_cache || !cache->data_size || cache->dont_cache)
905 return;
906 disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
907 disk_cache_put(screen->disk_shader_cache, sha1, cache->data, cache->data_size, NULL);
908 }
909 /**
910 * Create a new pipe_screen object
911 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
912 */
913 struct pipe_screen *
914 llvmpipe_create_screen(struct sw_winsys *winsys)
915 {
916 struct llvmpipe_screen *screen;
917
918 util_cpu_detect();
919
920 glsl_type_singleton_init_or_ref();
921
922 #ifdef DEBUG
923 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
924 #endif
925
926 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );
927
928 screen = CALLOC_STRUCT(llvmpipe_screen);
929 if (!screen)
930 return NULL;
931
932 if (!lp_jit_screen_init(screen)) {
933 FREE(screen);
934 return NULL;
935 }
936
937 screen->winsys = winsys;
938
939 screen->base.destroy = llvmpipe_destroy_screen;
940
941 screen->base.get_name = llvmpipe_get_name;
942 screen->base.get_vendor = llvmpipe_get_vendor;
943 screen->base.get_device_vendor = llvmpipe_get_vendor; // TODO should be the CPU vendor
944 screen->base.get_param = llvmpipe_get_param;
945 screen->base.get_shader_param = llvmpipe_get_shader_param;
946 screen->base.get_compute_param = llvmpipe_get_compute_param;
947 screen->base.get_paramf = llvmpipe_get_paramf;
948 screen->base.get_compiler_options = llvmpipe_get_compiler_options;
949 screen->base.is_format_supported = llvmpipe_is_format_supported;
950
951 screen->base.context_create = llvmpipe_create_context;
952 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
953 screen->base.fence_reference = llvmpipe_fence_reference;
954 screen->base.fence_finish = llvmpipe_fence_finish;
955
956 screen->base.get_timestamp = llvmpipe_get_timestamp;
957
958 screen->base.finalize_nir = llvmpipe_finalize_nir;
959
960 screen->base.get_disk_shader_cache = lp_get_disk_shader_cache;
961 llvmpipe_init_screen_resource_funcs(&screen->base);
962
963 screen->use_tgsi = (LP_DEBUG & DEBUG_TGSI_IR);
964 screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0;
965 #ifdef EMBEDDED_DEVICE
966 screen->num_threads = 0;
967 #endif
968 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
969 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
970
971 screen->rast = lp_rast_create(screen->num_threads);
972 if (!screen->rast) {
973 lp_jit_screen_cleanup(screen);
974 FREE(screen);
975 return NULL;
976 }
977 (void) mtx_init(&screen->rast_mutex, mtx_plain);
978
979 screen->cs_tpool = lp_cs_tpool_create(screen->num_threads);
980 if (!screen->cs_tpool) {
981 lp_rast_destroy(screen->rast);
982 lp_jit_screen_cleanup(screen);
983 FREE(screen);
984 return NULL;
985 }
986 (void) mtx_init(&screen->cs_mutex, mtx_plain);
987
988 lp_disk_cache_create(screen);
989 return &screen->base;
990 }