src/gallium/drivers/v3d/v3d_context.h

   1 /*
   2  * Copyright © 2014-2017 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #ifndef VC5_CONTEXT_H
  26 #define VC5_CONTEXT_H
  27
  28 #ifdef V3D_VERSION
  29 #include "broadcom/common/v3d_macros.h"
  30 #endif
  31
  32 #include <stdio.h>
  33
  34 #include "pipe/p_context.h"
  35 #include "pipe/p_state.h"
  36 #include "util/bitset.h"
  37 #include "util/slab.h"
  38 #include "xf86drm.h"
  39 #include "v3d_drm.h"
  40 #include "v3d_screen.h"
  41
  42 struct v3d_job;
  43 struct v3d_bo;
  44 void v3d_job_add_bo(struct v3d_job *job, struct v3d_bo *bo);
  45
  46 #include "v3d_bufmgr.h"
  47 #include "v3d_resource.h"
  48 #include "v3d_cl.h"
  49
  50 #ifdef USE_V3D_SIMULATOR
  51 #define using_v3d_simulator true
  52 #else
  53 #define using_v3d_simulator false
  54 #endif
  55
  56 #define VC5_DIRTY_BLEND         (1 <<  0)
  57 #define VC5_DIRTY_RASTERIZER    (1 <<  1)
  58 #define VC5_DIRTY_ZSA           (1 <<  2)
  59 #define VC5_DIRTY_FRAGTEX       (1 <<  3)
  60 #define VC5_DIRTY_VERTTEX       (1 <<  4)
  61
  62 #define VC5_DIRTY_BLEND_COLOR   (1 <<  7)
  63 #define VC5_DIRTY_STENCIL_REF   (1 <<  8)
  64 #define VC5_DIRTY_SAMPLE_STATE  (1 <<  9)
  65 #define VC5_DIRTY_FRAMEBUFFER   (1 << 10)
  66 #define VC5_DIRTY_STIPPLE       (1 << 11)
  67 #define VC5_DIRTY_VIEWPORT      (1 << 12)
  68 #define VC5_DIRTY_CONSTBUF      (1 << 13)
  69 #define VC5_DIRTY_VTXSTATE      (1 << 14)
  70 #define VC5_DIRTY_VTXBUF        (1 << 15)
  71 #define VC5_DIRTY_SCISSOR       (1 << 17)
  72 #define VC5_DIRTY_FLAT_SHADE_FLAGS (1 << 18)
  73 #define VC5_DIRTY_PRIM_MODE     (1 << 19)
  74 #define VC5_DIRTY_CLIP          (1 << 20)
  75 #define VC5_DIRTY_UNCOMPILED_VS (1 << 21)
  76 #define VC5_DIRTY_UNCOMPILED_FS (1 << 22)
  77 #define VC5_DIRTY_COMPILED_CS   (1 << 23)
  78 #define VC5_DIRTY_COMPILED_VS   (1 << 24)
  79 #define VC5_DIRTY_COMPILED_FS   (1 << 25)
  80 #define VC5_DIRTY_FS_INPUTS     (1 << 26)
  81 #define VC5_DIRTY_STREAMOUT     (1 << 27)
  82 #define VC5_DIRTY_OQ            (1 << 28)
  83 #define VC5_DIRTY_CENTROID_FLAGS (1 << 29)
  84 #define VC5_DIRTY_NOPERSPECTIVE_FLAGS (1 << 30)
  85
  86 #define VC5_MAX_FS_INPUTS 64
  87
  88 struct v3d_sampler_view {
  89         struct pipe_sampler_view base;
  90         uint32_t p0;
  91         uint32_t p1;
  92         /* Precomputed swizzles to pass in to the shader key. */
  93         uint8_t swizzle[4];
  94
  95         uint8_t texture_shader_state[32];
  96         /* V3D 4.x: Texture state struct. */
  97         struct v3d_bo *bo;
  98
  99         /* Actual texture to be read by this sampler view.  May be different
 100          * from base.texture in the case of having a shadow tiled copy of a
 101          * raster texture.
 102          */
 103         struct pipe_resource *texture;
 104 };
 105
 106 struct v3d_sampler_state {
 107         struct pipe_sampler_state base;
 108         uint32_t p0;
 109         uint32_t p1;
 110
 111         /* V3D 3.x: Packed texture state. */
 112         uint8_t texture_shader_state[32];
 113         /* V3D 4.x: Sampler state struct. */
 114         struct v3d_bo *bo;
 115 };
 116
 117 struct v3d_texture_stateobj {
 118         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
 119         unsigned num_textures;
 120         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
 121         unsigned num_samplers;
 122         struct v3d_cl_reloc texture_state[PIPE_MAX_SAMPLERS];
 123 };
 124
 125 struct v3d_shader_uniform_info {
 126         enum quniform_contents *contents;
 127         uint32_t *data;
 128         uint32_t count;
 129 };
 130
 131 struct v3d_uncompiled_shader {
 132         /** A name for this program, so you can track it in shader-db output. */
 133         uint32_t program_id;
 134         /** How many variants of this program were compiled, for shader-db. */
 135         uint32_t compiled_variant_count;
 136         struct pipe_shader_state base;
 137         uint32_t num_tf_outputs;
 138         struct v3d_varying_slot *tf_outputs;
 139         uint16_t tf_specs[16];
 140         uint16_t tf_specs_psiz[16];
 141         uint32_t num_tf_specs;
 142
 143         /**
 144          * Flag for if the NIR in this shader originally came from TGSI.  If
 145          * so, we need to do some fixups at compile time, due to missing
 146          * information in TGSI that exists in NIR.
 147          */
 148         bool was_tgsi;
 149 };
 150
 151 struct v3d_compiled_shader {
 152         struct pipe_resource *resource;
 153         uint32_t offset;
 154
 155         union {
 156                 struct v3d_prog_data *base;
 157                 struct v3d_vs_prog_data *vs;
 158                 struct v3d_fs_prog_data *fs;
 159         } prog_data;
 160
 161         /**
 162          * VC5_DIRTY_* flags that, when set in v3d->dirty, mean that the
 163          * uniforms have to be rewritten (and therefore the shader state
 164          * reemitted).
 165          */
 166         uint32_t uniform_dirty_bits;
 167 };
 168
 169 struct v3d_program_stateobj {
 170         struct v3d_uncompiled_shader *bind_vs, *bind_fs;
 171         struct v3d_compiled_shader *cs, *vs, *fs;
 172
 173         struct v3d_bo *spill_bo;
 174         int spill_size_per_thread;
 175 };
 176
 177 struct v3d_constbuf_stateobj {
 178         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
 179         uint32_t enabled_mask;
 180         uint32_t dirty_mask;
 181 };
 182
 183 struct v3d_vertexbuf_stateobj {
 184         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 185         unsigned count;
 186         uint32_t enabled_mask;
 187         uint32_t dirty_mask;
 188 };
 189
 190 struct v3d_vertex_stateobj {
 191         struct pipe_vertex_element pipe[VC5_MAX_ATTRIBUTES];
 192         unsigned num_elements;
 193
 194         uint8_t attrs[16 * VC5_MAX_ATTRIBUTES];
 195         struct pipe_resource *defaults;
 196         uint32_t defaults_offset;
 197 };
 198
 199 struct v3d_streamout_stateobj {
 200         struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS];
 201         /* Number of vertices we've written into the buffer so far. */
 202         uint32_t offsets[PIPE_MAX_SO_BUFFERS];
 203         unsigned num_targets;
 204 };
 205
 206 /* Hash table key for v3d->jobs */
 207 struct v3d_job_key {
 208         struct pipe_surface *cbufs[4];
 209         struct pipe_surface *zsbuf;
 210 };
 211
 212 enum v3d_ez_state {
 213         VC5_EZ_UNDECIDED = 0,
 214         VC5_EZ_GT_GE,
 215         VC5_EZ_LT_LE,
 216         VC5_EZ_DISABLED,
 217 };
 218
 219 /**
 220  * A complete bin/render job.
 221  *
 222  * This is all of the state necessary to submit a bin/render to the kernel.
 223  * We want to be able to have multiple in progress at a time, so that we don't
 224  * need to flush an existing CL just to switch to rendering to a new render
 225  * target (which would mean reading back from the old render target when
 226  * starting to render to it again).
 227  */
 228 struct v3d_job {
 229         struct v3d_context *v3d;
 230         struct v3d_cl bcl;
 231         struct v3d_cl rcl;
 232         struct v3d_cl indirect;
 233         struct v3d_bo *tile_alloc;
 234         struct v3d_bo *tile_state;
 235         uint32_t shader_rec_count;
 236
 237         struct drm_v3d_submit_cl submit;
 238
 239         /**
 240          * Set of all BOs referenced by the job.  This will be used for making
 241          * the list of BOs that the kernel will need to have paged in to
 242          * execute our job.
 243          */
 244         struct set *bos;
 245
 246         /** Sum of the sizes of the BOs referenced by the job. */
 247         uint32_t referenced_size;
 248
 249         struct set *write_prscs;
 250
 251         /* Size of the submit.bo_handles array. */
 252         uint32_t bo_handles_size;
 253
 254         /** @{ Surfaces to submit rendering for. */
 255         struct pipe_surface *cbufs[4];
 256         struct pipe_surface *zsbuf;
 257         /** @} */
 258         /** @{
 259          * Bounding box of the scissor across all queued drawing.
 260          *
 261          * Note that the max values are exclusive.
 262          */
 263         uint32_t draw_min_x;
 264         uint32_t draw_min_y;
 265         uint32_t draw_max_x;
 266         uint32_t draw_max_y;
 267         /** @} */
 268         /** @{
 269          * Width/height of the color framebuffer being rendered to,
 270          * for VC5_TILE_RENDERING_MODE_CONFIG.
 271         */
 272         uint32_t draw_width;
 273         uint32_t draw_height;
 274         /** @} */
 275         /** @{ Tile information, depending on MSAA and float color buffer. */
 276         uint32_t draw_tiles_x; /** @< Number of tiles wide for framebuffer. */
 277         uint32_t draw_tiles_y; /** @< Number of tiles high for framebuffer. */
 278
 279         uint32_t tile_width; /** @< Width of a tile. */
 280         uint32_t tile_height; /** @< Height of a tile. */
 281         /** maximum internal_bpp of all color render targets. */
 282         uint32_t internal_bpp;
 283
 284         /** Whether the current rendering is in a 4X MSAA tile buffer. */
 285         bool msaa;
 286         /** @} */
 287
 288         /* Bitmask of PIPE_CLEAR_* of buffers that were cleared before the
 289          * first rendering.
 290          */
 291         uint32_t clear;
 292         /* Bitmask of PIPE_CLEAR_* of buffers that have been read by a draw
 293          * call without having been cleared first.
 294          */
 295         uint32_t load;
 296         /* Bitmask of PIPE_CLEAR_* of buffers that have been rendered to
 297          * (either clears or draws) and should be stored.
 298          */
 299         uint32_t store;
 300         uint32_t clear_color[4][4];
 301         float clear_z;
 302         uint8_t clear_s;
 303
 304         /**
 305          * Set if some drawing (triangles, blits, or just a glClear()) has
 306          * been done to the FBO, meaning that we need to
 307          * DRM_IOCTL_VC5_SUBMIT_CL.
 308          */
 309         bool needs_flush;
 310
 311         /**
 312          * Set if a packet enabling TF has been emitted in the job (V3D 4.x).
 313          */
 314         bool tf_enabled;
 315
 316         /**
 317          * Current EZ state for drawing. Updated at the start of draw after
 318          * we've decided on the shader being rendered.
 319          */
 320         enum v3d_ez_state ez_state;
 321         /**
 322          * The first EZ state that was used for drawing with a decided EZ
 323          * direction (so either UNDECIDED, GT, or LT).
 324          */
 325         enum v3d_ez_state first_ez_state;
 326
 327         /**
 328          * Number of draw calls (not counting full buffer clears) queued in
 329          * the current job.
 330          */
 331         uint32_t draw_calls_queued;
 332
 333         struct v3d_job_key key;
 334 };
 335
 336 struct v3d_context {
 337         struct pipe_context base;
 338
 339         int fd;
 340         struct v3d_screen *screen;
 341
 342         /** The 3D rendering job for the currently bound FBO. */
 343         struct v3d_job *job;
 344
 345         /* Map from struct v3d_job_key to the job for that FBO.
 346          */
 347         struct hash_table *jobs;
 348
 349         /**
 350          * Map from v3d_resource to a job writing to that resource.
 351          *
 352          * Primarily for flushing jobs rendering to textures that are now
 353          * being read from.
 354          */
 355         struct hash_table *write_jobs;
 356
 357         struct slab_child_pool transfer_pool;
 358         struct blitter_context *blitter;
 359
 360         /** bitfield of VC5_DIRTY_* */
 361         uint32_t dirty;
 362
 363         struct primconvert_context *primconvert;
 364
 365         struct hash_table *fs_cache, *vs_cache;
 366         uint32_t next_uncompiled_program_id;
 367         uint64_t next_compiled_program_id;
 368
 369         struct v3d_compiler_state *compiler_state;
 370
 371         uint8_t prim_mode;
 372
 373         /** Maximum index buffer valid for the current shader_rec. */
 374         uint32_t max_index;
 375
 376         /** Sync object that our RCL or TFU job will update as its out_sync. */
 377         uint32_t out_sync;
 378
 379         /* Stream uploader used by gallium internals.  This could also be used
 380          * by driver internals, but we tend to use the v3d_cl.h interfaces
 381          * instead.
 382          */
 383         struct u_upload_mgr *uploader;
 384         /* State uploader used inside the driver.  This is for packing bits of
 385          * long-term state inside buffers, since the kernel interfaces
 386          * allocate a page at a time.
 387          */
 388         struct u_upload_mgr *state_uploader;
 389
 390         /** @{ Current pipeline state objects */
 391         struct pipe_scissor_state scissor;
 392         struct v3d_blend_state *blend;
 393         struct v3d_rasterizer_state *rasterizer;
 394         struct v3d_depth_stencil_alpha_state *zsa;
 395
 396         struct v3d_program_stateobj prog;
 397
 398         struct v3d_vertex_stateobj *vtx;
 399
 400         struct {
 401                 struct pipe_blend_color f;
 402                 uint16_t hf[4];
 403         } blend_color;
 404         struct pipe_stencil_ref stencil_ref;
 405         unsigned sample_mask;
 406         struct pipe_framebuffer_state framebuffer;
 407
 408         /* Per render target, whether we should swap the R and B fields in the
 409          * shader's color output and in blending.  If render targets disagree
 410          * on the R/B swap and use the constant color, then we would need to
 411          * fall back to in-shader blending.
 412          */
 413         uint8_t swap_color_rb;
 414
 415         /* Per render target, whether we should treat the dst alpha values as
 416          * one in blending.
 417          *
 418          * For RGBX formats, the tile buffer's alpha channel will be
 419          * undefined.
 420          */
 421         uint8_t blend_dst_alpha_one;
 422
 423         bool active_queries;
 424
 425         uint32_t tf_prims_generated;
 426         uint32_t prims_generated;
 427
 428         struct pipe_poly_stipple stipple;
 429         struct pipe_clip_state clip;
 430         struct pipe_viewport_state viewport;
 431         struct v3d_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 432         struct v3d_texture_stateobj tex[PIPE_SHADER_TYPES];
 433         struct v3d_vertexbuf_stateobj vertexbuf;
 434         struct v3d_streamout_stateobj streamout;
 435         struct v3d_bo *current_oq;
 436         /** @} */
 437 };
 438
 439 struct v3d_rasterizer_state {
 440         struct pipe_rasterizer_state base;
 441
 442         float point_size;
 443
 444         uint8_t depth_offset[9];
 445         uint8_t depth_offset_z16[9];
 446 };
 447
 448 struct v3d_depth_stencil_alpha_state {
 449         struct pipe_depth_stencil_alpha_state base;
 450
 451         enum v3d_ez_state ez_state;
 452
 453         uint8_t stencil_front[6];
 454         uint8_t stencil_back[6];
 455 };
 456
 457 struct v3d_blend_state {
 458         struct pipe_blend_state base;
 459
 460         /* Per-RT mask of whether blending is enabled. */
 461         uint8_t blend_enables;
 462 };
 463
 464 #define perf_debug(...) do {                            \
 465         if (unlikely(V3D_DEBUG & V3D_DEBUG_PERF))       \
 466                 fprintf(stderr, __VA_ARGS__);           \
 467 } while (0)
 468
 469 #define foreach_bit(b, mask)                                            \
 470         for (uint32_t _m = (mask), b; _m && ({(b) = u_bit_scan(&_m); 1;});)
 471
 472 static inline struct v3d_context *
 473 v3d_context(struct pipe_context *pcontext)
 474 {
 475         return (struct v3d_context *)pcontext;
 476 }
 477
 478 static inline struct v3d_sampler_view *
 479 v3d_sampler_view(struct pipe_sampler_view *psview)
 480 {
 481         return (struct v3d_sampler_view *)psview;
 482 }
 483
 484 static inline struct v3d_sampler_state *
 485 v3d_sampler_state(struct pipe_sampler_state *psampler)
 486 {
 487         return (struct v3d_sampler_state *)psampler;
 488 }
 489
 490 struct pipe_context *v3d_context_create(struct pipe_screen *pscreen,
 491                                         void *priv, unsigned flags);
 492 void v3d_program_init(struct pipe_context *pctx);
 493 void v3d_program_fini(struct pipe_context *pctx);
 494 void v3d_query_init(struct pipe_context *pctx);
 495
 496 void v3d_simulator_init(struct v3d_screen *screen);
 497 void v3d_simulator_destroy(struct v3d_screen *screen);
 498 int v3d_simulator_ioctl(int fd, unsigned long request, void *arg);
 499 void v3d_simulator_open_from_handle(int fd, int handle, uint32_t size);
 500
 501 static inline int
 502 v3d_ioctl(int fd, unsigned long request, void *arg)
 503 {
 504         if (using_v3d_simulator)
 505                 return v3d_simulator_ioctl(fd, request, arg);
 506         else
 507                 return drmIoctl(fd, request, arg);
 508 }
 509
 510 void v3d_set_shader_uniform_dirty_flags(struct v3d_compiled_shader *shader);
 511 struct v3d_cl_reloc v3d_write_uniforms(struct v3d_context *v3d,
 512                                        struct v3d_compiled_shader *shader,
 513                                        enum pipe_shader_type stage);
 514
 515 void v3d_flush(struct pipe_context *pctx);
 516 void v3d_job_init(struct v3d_context *v3d);
 517 struct v3d_job *v3d_get_job(struct v3d_context *v3d,
 518                             struct pipe_surface **cbufs,
 519                             struct pipe_surface *zsbuf);
 520 struct v3d_job *v3d_get_job_for_fbo(struct v3d_context *v3d);
 521 void v3d_job_add_bo(struct v3d_job *job, struct v3d_bo *bo);
 522 void v3d_job_add_write_resource(struct v3d_job *job, struct pipe_resource *prsc);
 523 void v3d_job_submit(struct v3d_context *v3d, struct v3d_job *job);
 524 void v3d_flush_jobs_writing_resource(struct v3d_context *v3d,
 525                                      struct pipe_resource *prsc);
 526 void v3d_flush_jobs_reading_resource(struct v3d_context *v3d,
 527                                      struct pipe_resource *prsc);
 528 void v3d_update_compiled_shaders(struct v3d_context *v3d, uint8_t prim_mode);
 529
 530 bool v3d_rt_format_supported(const struct v3d_device_info *devinfo,
 531                              enum pipe_format f);
 532 bool v3d_tex_format_supported(const struct v3d_device_info *devinfo,
 533                               enum pipe_format f);
 534 uint8_t v3d_get_rt_format(const struct v3d_device_info *devinfo, enum pipe_format f);
 535 uint8_t v3d_get_tex_format(const struct v3d_device_info *devinfo, enum pipe_format f);
 536 uint8_t v3d_get_tex_return_size(const struct v3d_device_info *devinfo,
 537                                 enum pipe_format f,
 538                                 enum pipe_tex_compare compare);
 539 uint8_t v3d_get_tex_return_channels(const struct v3d_device_info *devinfo,
 540                                     enum pipe_format f);
 541 const uint8_t *v3d_get_format_swizzle(const struct v3d_device_info *devinfo,
 542                                       enum pipe_format f);
 543 void v3d_get_internal_type_bpp_for_output_format(const struct v3d_device_info *devinfo,
 544                                                  uint32_t format,
 545                                                  uint32_t *type,
 546                                                  uint32_t *bpp);
 547 bool v3d_tfu_supports_tex_format(const struct v3d_device_info *devinfo,
 548                                  uint32_t tex_format);
 549
 550 void v3d_init_query_functions(struct v3d_context *v3d);
 551 void v3d_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info);
 552 void v3d_blitter_save(struct v3d_context *v3d);
 553 boolean v3d_generate_mipmap(struct pipe_context *pctx,
 554                             struct pipe_resource *prsc,
 555                             enum pipe_format format,
 556                             unsigned int base_level,
 557                             unsigned int last_level,
 558                             unsigned int first_layer,
 559                             unsigned int last_layer);
 560
 561 struct v3d_fence *v3d_fence_create(struct v3d_context *v3d);
 562
 563 #ifdef v3dX
 564 #  include "v3dx_context.h"
 565 #else
 566 #  define v3dX(x) v3d33_##x
 567 #  include "v3dx_context.h"
 568 #  undef v3dX
 569
 570 #  define v3dX(x) v3d41_##x
 571 #  include "v3dx_context.h"
 572 #  undef v3dX
 573 #endif
 574
 575 #endif /* VC5_CONTEXT_H */