src/gallium/drivers/freedreno/freedreno_context.h

   1 /*
   2  * Copyright (C) 2012 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 #ifndef FREEDRENO_CONTEXT_H_
  28 #define FREEDRENO_CONTEXT_H_
  29
  30 #include "pipe/p_context.h"
  31 #include "indices/u_primconvert.h"
  32 #include "util/u_blitter.h"
  33 #include "util/list.h"
  34 #include "util/slab.h"
  35 #include "util/u_string.h"
  36
  37 #include "freedreno_batch.h"
  38 #include "freedreno_screen.h"
  39 #include "freedreno_gmem.h"
  40 #include "freedreno_util.h"
  41
  42 #define BORDER_COLOR_UPLOAD_SIZE (2 * PIPE_MAX_SAMPLERS * BORDERCOLOR_SIZE)
  43
  44 struct fd_vertex_stateobj;
  45
  46 struct fd_texture_stateobj {
  47         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  48         unsigned num_textures;
  49         unsigned valid_textures;
  50         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  51         unsigned num_samplers;
  52         unsigned valid_samplers;
  53         /* number of samples per sampler, 2 bits per sampler: */
  54         uint32_t samples;
  55 };
  56
  57 struct fd_program_stateobj {
  58         void *vp, *fp;
  59 };
  60
  61 struct fd_constbuf_stateobj {
  62         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  63         uint32_t enabled_mask;
  64 };
  65
  66 struct fd_shaderbuf_stateobj {
  67         struct pipe_shader_buffer sb[PIPE_MAX_SHADER_BUFFERS];
  68         uint32_t enabled_mask;
  69 };
  70
  71 struct fd_shaderimg_stateobj {
  72         struct pipe_image_view si[PIPE_MAX_SHADER_IMAGES];
  73         uint32_t enabled_mask;
  74 };
  75
  76 struct fd_vertexbuf_stateobj {
  77         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  78         unsigned count;
  79         uint32_t enabled_mask;
  80 };
  81
  82 struct fd_vertex_stateobj {
  83         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
  84         unsigned num_elements;
  85 };
  86
  87 struct fd_streamout_stateobj {
  88         struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS];
  89         unsigned num_targets;
  90         /* Track offset from vtxcnt for streamout data.  This counter
  91          * is just incremented by # of vertices on each draw until
  92          * reset or new streamout buffer bound.
  93          *
  94          * When we eventually have GS, the CPU won't actually know the
  95          * number of vertices per draw, so I think we'll have to do
  96          * something more clever.
  97          */
  98         unsigned offsets[PIPE_MAX_SO_BUFFERS];
  99 };
 100
 101 #define MAX_GLOBAL_BUFFERS 16
 102 struct fd_global_bindings_stateobj {
 103         struct pipe_resource *buf[MAX_GLOBAL_BUFFERS];
 104         uint32_t enabled_mask;
 105 };
 106
 107 /* group together the vertex and vertexbuf state.. for ease of passing
 108  * around, and because various internal operations (gmem<->mem, etc)
 109  * need their own vertex state:
 110  */
 111 struct fd_vertex_state {
 112         struct fd_vertex_stateobj *vtx;
 113         struct fd_vertexbuf_stateobj vertexbuf;
 114 };
 115
 116 /* global 3d pipeline dirty state: */
 117 enum fd_dirty_3d_state {
 118         FD_DIRTY_BLEND       = BIT(0),
 119         FD_DIRTY_RASTERIZER  = BIT(1),
 120         FD_DIRTY_ZSA         = BIT(2),
 121         FD_DIRTY_BLEND_COLOR = BIT(3),
 122         FD_DIRTY_STENCIL_REF = BIT(4),
 123         FD_DIRTY_SAMPLE_MASK = BIT(5),
 124         FD_DIRTY_FRAMEBUFFER = BIT(6),
 125         FD_DIRTY_STIPPLE     = BIT(7),
 126         FD_DIRTY_VIEWPORT    = BIT(8),
 127         FD_DIRTY_VTXSTATE    = BIT(9),
 128         FD_DIRTY_VTXBUF      = BIT(10),
 129         FD_DIRTY_MIN_SAMPLES = BIT(11),
 130
 131         FD_DIRTY_SCISSOR     = BIT(12),
 132         FD_DIRTY_STREAMOUT   = BIT(13),
 133         FD_DIRTY_UCP         = BIT(14),
 134         FD_DIRTY_BLEND_DUAL  = BIT(15),
 135
 136         /* These are a bit redundent with fd_dirty_shader_state, and possibly
 137          * should be removed.  (But OTOH kinda convenient in some places)
 138          */
 139         FD_DIRTY_PROG        = BIT(16),
 140         FD_DIRTY_CONST       = BIT(17),
 141         FD_DIRTY_TEX         = BIT(18),
 142
 143         /* only used by a2xx.. possibly can be removed.. */
 144         FD_DIRTY_TEXSTATE    = BIT(19),
 145 };
 146
 147 /* per shader-stage dirty state: */
 148 enum fd_dirty_shader_state {
 149         FD_DIRTY_SHADER_PROG  = BIT(0),
 150         FD_DIRTY_SHADER_CONST = BIT(1),
 151         FD_DIRTY_SHADER_TEX   = BIT(2),
 152         FD_DIRTY_SHADER_SSBO  = BIT(3),
 153         FD_DIRTY_SHADER_IMAGE = BIT(4),
 154 };
 155
 156 struct fd_context {
 157         struct pipe_context base;
 158
 159         struct fd_device *dev;
 160         struct fd_screen *screen;
 161         struct fd_pipe *pipe;
 162
 163         struct util_queue flush_queue;
 164
 165         struct blitter_context *blitter;
 166         void *clear_rs_state;
 167         struct primconvert_context *primconvert;
 168
 169         /* slab for pipe_transfer allocations: */
 170         struct slab_child_pool transfer_pool;
 171
 172         /**
 173          * query related state:
 174          */
 175         /*@{*/
 176         /* slabs for fd_hw_sample and fd_hw_sample_period allocations: */
 177         struct slab_mempool sample_pool;
 178         struct slab_mempool sample_period_pool;
 179
 180         /* sample-providers for hw queries: */
 181         const struct fd_hw_sample_provider *hw_sample_providers[MAX_HW_SAMPLE_PROVIDERS];
 182
 183         /* list of active queries: */
 184         struct list_head hw_active_queries;
 185
 186         /* sample-providers for accumulating hw queries: */
 187         const struct fd_acc_sample_provider *acc_sample_providers[MAX_HW_SAMPLE_PROVIDERS];
 188
 189         /* list of active accumulating queries: */
 190         struct list_head acc_active_queries;
 191         /*@}*/
 192
 193         /* table with PIPE_PRIM_MAX entries mapping PIPE_PRIM_x to
 194          * DI_PT_x value to use for draw initiator.  There are some
 195          * slight differences between generation:
 196          */
 197         const uint8_t *primtypes;
 198         uint32_t primtype_mask;
 199
 200         /* shaders used by clear, and gmem->mem blits: */
 201         struct fd_program_stateobj solid_prog; // TODO move to screen?
 202
 203         /* shaders used by mem->gmem blits: */
 204         struct fd_program_stateobj blit_prog[MAX_RENDER_TARGETS]; // TODO move to screen?
 205         struct fd_program_stateobj blit_z, blit_zs;
 206
 207         /* Stats/counters:
 208          */
 209         struct {
 210                 uint64_t prims_emitted;
 211                 uint64_t prims_generated;
 212                 uint64_t draw_calls;
 213                 uint64_t batch_total, batch_sysmem, batch_gmem, batch_nondraw, batch_restore;
 214                 uint64_t staging_uploads, shadow_uploads;
 215                 uint64_t vs_regs, fs_regs;
 216         } stats;
 217
 218         /* Current batch.. the rule here is that you can deref ctx->batch
 219          * in codepaths from pipe_context entrypoints.  But not in code-
 220          * paths from fd_batch_flush() (basically, the stuff that gets
 221          * called from GMEM code), since in those code-paths the batch
 222          * you care about is not necessarily the same as ctx->batch.
 223          */
 224         struct fd_batch *batch;
 225
 226         /* NULL if there has been rendering since last flush.  Otherwise
 227          * keeps a reference to the last fence so we can re-use it rather
 228          * than having to flush no-op batch.
 229          */
 230         struct pipe_fence_handle *last_fence;
 231
 232         /* track last known reset status globally and per-context to
 233          * determine if more resets occurred since then.  If global reset
 234          * count increases, it means some other context crashed.  If
 235          * per-context reset count increases, it means we crashed the
 236          * gpu.
 237          */
 238         uint32_t context_reset_count, global_reset_count;
 239
 240         /* Are we in process of shadowing a resource? Used to detect recursion
 241          * in transfer_map, and skip unneeded synchronization.
 242          */
 243         bool in_shadow : 1;
 244
 245         /* Ie. in blit situation where we no longer care about previous framebuffer
 246          * contents.  Main point is to eliminate blits from fd_try_shadow_resource().
 247          * For example, in case of texture upload + gen-mipmaps.
 248          */
 249         bool in_blit : 1;
 250
 251         struct pipe_scissor_state scissor;
 252
 253         /* we don't have a disable/enable bit for scissor, so instead we keep
 254          * a disabled-scissor state which matches the entire bound framebuffer
 255          * and use that when scissor is not enabled.
 256          */
 257         struct pipe_scissor_state disabled_scissor;
 258
 259         /* Current gmem/tiling configuration.. gets updated on render_tiles()
 260          * if out of date with current maximal-scissor/cpp:
 261          *
 262          * (NOTE: this is kind of related to the batch, but moving it there
 263          * means we'd always have to recalc tiles ever batch)
 264          */
 265         struct fd_gmem_stateobj gmem;
 266         struct fd_vsc_pipe      vsc_pipe[32];
 267         struct fd_tile          tile[512];
 268
 269         /* which state objects need to be re-emit'd: */
 270         enum fd_dirty_3d_state dirty;
 271
 272         /* per shader-stage dirty status: */
 273         enum fd_dirty_shader_state dirty_shader[PIPE_SHADER_TYPES];
 274
 275         void *compute;
 276         struct pipe_blend_state *blend;
 277         struct pipe_rasterizer_state *rasterizer;
 278         struct pipe_depth_stencil_alpha_state *zsa;
 279
 280         struct fd_texture_stateobj tex[PIPE_SHADER_TYPES];
 281
 282         struct fd_program_stateobj prog;
 283
 284         struct fd_vertex_state vtx;
 285
 286         struct pipe_blend_color blend_color;
 287         struct pipe_stencil_ref stencil_ref;
 288         unsigned sample_mask;
 289         unsigned min_samples;
 290         /* local context fb state, for when ctx->batch is null: */
 291         struct pipe_framebuffer_state framebuffer;
 292         struct pipe_poly_stipple stipple;
 293         struct pipe_viewport_state viewport;
 294         struct pipe_scissor_state viewport_scissor;
 295         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 296         struct fd_shaderbuf_stateobj shaderbuf[PIPE_SHADER_TYPES];
 297         struct fd_shaderimg_stateobj shaderimg[PIPE_SHADER_TYPES];
 298         struct fd_streamout_stateobj streamout;
 299         struct fd_global_bindings_stateobj global_bindings;
 300         struct pipe_clip_state ucp;
 301
 302         struct pipe_query *cond_query;
 303         bool cond_cond; /* inverted rendering condition */
 304         uint cond_mode;
 305
 306         struct pipe_debug_callback debug;
 307
 308         /* GMEM/tile handling fxns: */
 309         void (*emit_tile_init)(struct fd_batch *batch);
 310         void (*emit_tile_prep)(struct fd_batch *batch, struct fd_tile *tile);
 311         void (*emit_tile_mem2gmem)(struct fd_batch *batch, struct fd_tile *tile);
 312         void (*emit_tile_renderprep)(struct fd_batch *batch, struct fd_tile *tile);
 313         void (*emit_tile)(struct fd_batch *batch, struct fd_tile *tile);
 314         void (*emit_tile_gmem2mem)(struct fd_batch *batch, struct fd_tile *tile);
 315         void (*emit_tile_fini)(struct fd_batch *batch);   /* optional */
 316
 317         /* optional, for GMEM bypass: */
 318         void (*emit_sysmem_prep)(struct fd_batch *batch);
 319         void (*emit_sysmem_fini)(struct fd_batch *batch);
 320
 321         /* draw: */
 322         bool (*draw_vbo)(struct fd_context *ctx, const struct pipe_draw_info *info,
 323                         unsigned index_offset);
 324         bool (*clear)(struct fd_context *ctx, unsigned buffers,
 325                         const union pipe_color_union *color, double depth, unsigned stencil);
 326
 327         /* compute: */
 328         void (*launch_grid)(struct fd_context *ctx, const struct pipe_grid_info *info);
 329
 330         /* query: */
 331         struct fd_query * (*create_query)(struct fd_context *ctx, unsigned query_type);
 332         void (*query_prepare)(struct fd_batch *batch, uint32_t num_tiles);
 333         void (*query_prepare_tile)(struct fd_batch *batch, uint32_t n,
 334                         struct fd_ringbuffer *ring);
 335         void (*query_set_stage)(struct fd_batch *batch, enum fd_render_stage stage);
 336
 337         /* blitter: */
 338         bool (*blit)(struct fd_context *ctx, const struct pipe_blit_info *info);
 339
 340         /* handling for barriers: */
 341         void (*framebuffer_barrier)(struct fd_context *ctx);
 342
 343         /*
 344          * Common pre-cooked VBO state (used for a3xx and later):
 345          */
 346
 347         /* for clear/gmem->mem vertices, and mem->gmem */
 348         struct pipe_resource *solid_vbuf;
 349
 350         /* for mem->gmem tex coords: */
 351         struct pipe_resource *blit_texcoord_vbuf;
 352
 353         /* vertex state for solid_vbuf:
 354          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 355          */
 356         struct fd_vertex_state solid_vbuf_state;
 357
 358         /* vertex state for blit_prog:
 359          *    - blit_texcoord_vbuf / 8 / R32G32_FLOAT
 360          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 361          */
 362         struct fd_vertex_state blit_vbuf_state;
 363 };
 364
 365 static inline struct fd_context *
 366 fd_context(struct pipe_context *pctx)
 367 {
 368         return (struct fd_context *)pctx;
 369 }
 370
 371 static inline void
 372 fd_context_assert_locked(struct fd_context *ctx)
 373 {
 374         pipe_mutex_assert_locked(ctx->screen->lock);
 375 }
 376
 377 static inline void
 378 fd_context_lock(struct fd_context *ctx)
 379 {
 380         mtx_lock(&ctx->screen->lock);
 381 }
 382
 383 static inline void
 384 fd_context_unlock(struct fd_context *ctx)
 385 {
 386         mtx_unlock(&ctx->screen->lock);
 387 }
 388
 389 /* mark all state dirty: */
 390 static inline void
 391 fd_context_all_dirty(struct fd_context *ctx)
 392 {
 393         ctx->dirty = ~0;
 394         for (unsigned i = 0; i < PIPE_SHADER_TYPES; i++)
 395                 ctx->dirty_shader[i] = ~0;
 396 }
 397
 398 static inline void
 399 fd_context_all_clean(struct fd_context *ctx)
 400 {
 401         ctx->dirty = 0;
 402         for (unsigned i = 0; i < PIPE_SHADER_TYPES; i++) {
 403                 /* don't mark compute state as clean, since it is not emitted
 404                  * during normal draw call.  The places that call _all_dirty(),
 405                  * it is safe to mark compute state dirty as well, but the
 406                  * inverse is not true.
 407                  */
 408                 if (i == PIPE_SHADER_COMPUTE)
 409                         continue;
 410                 ctx->dirty_shader[i] = 0;
 411         }
 412 }
 413
 414 static inline struct pipe_scissor_state *
 415 fd_context_get_scissor(struct fd_context *ctx)
 416 {
 417         if (ctx->rasterizer && ctx->rasterizer->scissor)
 418                 return &ctx->scissor;
 419         return &ctx->disabled_scissor;
 420 }
 421
 422 static inline bool
 423 fd_supported_prim(struct fd_context *ctx, unsigned prim)
 424 {
 425         return (1 << prim) & ctx->primtype_mask;
 426 }
 427
 428 static inline struct fd_batch *
 429 fd_context_batch(struct fd_context *ctx)
 430 {
 431         if (unlikely(!ctx->batch)) {
 432                 struct fd_batch *batch =
 433                         fd_batch_from_fb(&ctx->screen->batch_cache, ctx, &ctx->framebuffer);
 434                 util_copy_framebuffer_state(&batch->framebuffer, &ctx->framebuffer);
 435                 ctx->batch = batch;
 436                 fd_context_all_dirty(ctx);
 437         }
 438         return ctx->batch;
 439 }
 440
 441 static inline void
 442 fd_batch_set_stage(struct fd_batch *batch, enum fd_render_stage stage)
 443 {
 444         struct fd_context *ctx = batch->ctx;
 445
 446         /* special case: internal blits (like mipmap level generation)
 447          * go through normal draw path (via util_blitter_blit()).. but
 448          * we need to ignore the FD_STAGE_DRAW which will be set, so we
 449          * don't enable queries which should be paused during internal
 450          * blits:
 451          */
 452         if ((batch->stage == FD_STAGE_BLIT) &&
 453                         (stage != FD_STAGE_NULL))
 454                 return;
 455
 456         if (ctx->query_set_stage)
 457                 ctx->query_set_stage(batch, stage);
 458
 459         batch->stage = stage;
 460 }
 461
 462 void fd_context_setup_common_vbos(struct fd_context *ctx);
 463 void fd_context_cleanup_common_vbos(struct fd_context *ctx);
 464
 465 struct pipe_context * fd_context_init(struct fd_context *ctx,
 466                 struct pipe_screen *pscreen, const uint8_t *primtypes,
 467                 void *priv, unsigned flags);
 468
 469 void fd_context_destroy(struct pipe_context *pctx);
 470
 471 #endif /* FREEDRENO_CONTEXT_H_ */