src/gallium/drivers/freedreno/freedreno_context.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #ifndef FREEDRENO_CONTEXT_H_
  30 #define FREEDRENO_CONTEXT_H_
  31
  32 #include "pipe/p_context.h"
  33 #include "indices/u_primconvert.h"
  34 #include "util/u_blitter.h"
  35 #include "util/list.h"
  36 #include "util/slab.h"
  37 #include "util/u_string.h"
  38
  39 #include "freedreno_batch.h"
  40 #include "freedreno_screen.h"
  41 #include "freedreno_gmem.h"
  42 #include "freedreno_util.h"
  43
  44 #define BORDER_COLOR_UPLOAD_SIZE (2 * PIPE_MAX_SAMPLERS * BORDERCOLOR_SIZE)
  45
  46 struct fd_vertex_stateobj;
  47
  48 struct fd_texture_stateobj {
  49         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  50         unsigned num_textures;
  51         unsigned valid_textures;
  52         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  53         unsigned num_samplers;
  54         unsigned valid_samplers;
  55 };
  56
  57 struct fd_program_stateobj {
  58         void *vp, *fp;
  59
  60         /* rest only used by fd2.. split out: */
  61         uint8_t num_exports;
  62         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  63          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  64          * size) are not included in this
  65          */
  66         uint8_t export_linkage[63];
  67 };
  68
  69 struct fd_constbuf_stateobj {
  70         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  71         uint32_t enabled_mask;
  72         uint32_t dirty_mask;
  73 };
  74
  75 struct fd_shaderbuf_stateobj {
  76         struct pipe_shader_buffer sb[PIPE_MAX_SHADER_BUFFERS];
  77         uint32_t enabled_mask;
  78         uint32_t dirty_mask;
  79 };
  80
  81 struct fd_shaderimg_stateobj {
  82         struct pipe_image_view si[PIPE_MAX_SHADER_IMAGES];
  83         uint32_t enabled_mask;
  84         uint32_t dirty_mask;
  85 };
  86
  87 struct fd_vertexbuf_stateobj {
  88         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  89         unsigned count;
  90         uint32_t enabled_mask;
  91         uint32_t dirty_mask;
  92 };
  93
  94 struct fd_vertex_stateobj {
  95         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
  96         unsigned num_elements;
  97 };
  98
  99 struct fd_streamout_stateobj {
 100         struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS];
 101         unsigned num_targets;
 102         /* Track offset from vtxcnt for streamout data.  This counter
 103          * is just incremented by # of vertices on each draw until
 104          * reset or new streamout buffer bound.
 105          *
 106          * When we eventually have GS, the CPU won't actually know the
 107          * number of vertices per draw, so I think we'll have to do
 108          * something more clever.
 109          */
 110         unsigned offsets[PIPE_MAX_SO_BUFFERS];
 111 };
 112
 113 /* group together the vertex and vertexbuf state.. for ease of passing
 114  * around, and because various internal operations (gmem<->mem, etc)
 115  * need their own vertex state:
 116  */
 117 struct fd_vertex_state {
 118         struct fd_vertex_stateobj *vtx;
 119         struct fd_vertexbuf_stateobj vertexbuf;
 120 };
 121
 122 /* global 3d pipeline dirty state: */
 123 enum fd_dirty_3d_state {
 124         FD_DIRTY_BLEND       = BIT(0),
 125         FD_DIRTY_RASTERIZER  = BIT(1),
 126         FD_DIRTY_ZSA         = BIT(2),
 127         FD_DIRTY_BLEND_COLOR = BIT(3),
 128         FD_DIRTY_STENCIL_REF = BIT(4),
 129         FD_DIRTY_SAMPLE_MASK = BIT(5),
 130         FD_DIRTY_FRAMEBUFFER = BIT(6),
 131         FD_DIRTY_STIPPLE     = BIT(7),
 132         FD_DIRTY_VIEWPORT    = BIT(8),
 133         FD_DIRTY_VTXSTATE    = BIT(9),
 134         FD_DIRTY_VTXBUF      = BIT(10),
 135
 136         FD_DIRTY_SCISSOR     = BIT(12),
 137         FD_DIRTY_STREAMOUT   = BIT(13),
 138         FD_DIRTY_UCP         = BIT(14),
 139         FD_DIRTY_BLEND_DUAL  = BIT(15),
 140
 141         /* These are a bit redundent with fd_dirty_shader_state, and possibly
 142          * should be removed.  (But OTOH kinda convenient in some places)
 143          */
 144         FD_DIRTY_PROG        = BIT(16),
 145         FD_DIRTY_CONST       = BIT(17),
 146         FD_DIRTY_TEX         = BIT(18),
 147
 148         /* only used by a2xx.. possibly can be removed.. */
 149         FD_DIRTY_TEXSTATE    = BIT(19),
 150 };
 151
 152 /* per shader-stage dirty state: */
 153 enum fd_dirty_shader_state {
 154         FD_DIRTY_SHADER_PROG  = BIT(0),
 155         FD_DIRTY_SHADER_CONST = BIT(1),
 156         FD_DIRTY_SHADER_TEX   = BIT(2),
 157         FD_DIRTY_SHADER_SSBO  = BIT(3),
 158         FD_DIRTY_SHADER_IMAGE = BIT(4),
 159 };
 160
 161 struct fd_context {
 162         struct pipe_context base;
 163
 164         struct fd_device *dev;
 165         struct fd_screen *screen;
 166         struct fd_pipe *pipe;
 167
 168         struct util_queue flush_queue;
 169
 170         struct blitter_context *blitter;
 171         void *clear_rs_state;
 172         struct primconvert_context *primconvert;
 173
 174         /* slab for pipe_transfer allocations: */
 175         struct slab_child_pool transfer_pool;
 176
 177         /**
 178          * query related state:
 179          */
 180         /*@{*/
 181         /* slabs for fd_hw_sample and fd_hw_sample_period allocations: */
 182         struct slab_mempool sample_pool;
 183         struct slab_mempool sample_period_pool;
 184
 185         /* sample-providers for hw queries: */
 186         const struct fd_hw_sample_provider *hw_sample_providers[MAX_HW_SAMPLE_PROVIDERS];
 187
 188         /* list of active queries: */
 189         struct list_head hw_active_queries;
 190
 191         /* sample-providers for accumulating hw queries: */
 192         const struct fd_acc_sample_provider *acc_sample_providers[MAX_HW_SAMPLE_PROVIDERS];
 193
 194         /* list of active accumulating queries: */
 195         struct list_head acc_active_queries;
 196         /*@}*/
 197
 198         /* table with PIPE_PRIM_MAX entries mapping PIPE_PRIM_x to
 199          * DI_PT_x value to use for draw initiator.  There are some
 200          * slight differences between generation:
 201          */
 202         const uint8_t *primtypes;
 203         uint32_t primtype_mask;
 204
 205         /* shaders used by clear, and gmem->mem blits: */
 206         struct fd_program_stateobj solid_prog; // TODO move to screen?
 207
 208         /* shaders used by mem->gmem blits: */
 209         struct fd_program_stateobj blit_prog[MAX_RENDER_TARGETS]; // TODO move to screen?
 210         struct fd_program_stateobj blit_z, blit_zs;
 211
 212         /* Stats/counters:
 213          */
 214         struct {
 215                 uint64_t prims_emitted;
 216                 uint64_t prims_generated;
 217                 uint64_t draw_calls;
 218                 uint64_t batch_total, batch_sysmem, batch_gmem, batch_nondraw, batch_restore;
 219                 uint64_t staging_uploads, shadow_uploads;
 220         } stats;
 221
 222         /* Current batch.. the rule here is that you can deref ctx->batch
 223          * in codepaths from pipe_context entrypoints.  But not in code-
 224          * paths from fd_batch_flush() (basically, the stuff that gets
 225          * called from GMEM code), since in those code-paths the batch
 226          * you care about is not necessarily the same as ctx->batch.
 227          */
 228         struct fd_batch *batch;
 229
 230         /* Are we in process of shadowing a resource? Used to detect recursion
 231          * in transfer_map, and skip unneeded synchronization.
 232          */
 233         bool in_shadow : 1;
 234
 235         /* Ie. in blit situation where we no longer care about previous framebuffer
 236          * contents.  Main point is to eliminate blits from fd_try_shadow_resource().
 237          * For example, in case of texture upload + gen-mipmaps.
 238          */
 239         bool in_blit : 1;
 240
 241         struct pipe_scissor_state scissor;
 242
 243         /* we don't have a disable/enable bit for scissor, so instead we keep
 244          * a disabled-scissor state which matches the entire bound framebuffer
 245          * and use that when scissor is not enabled.
 246          */
 247         struct pipe_scissor_state disabled_scissor;
 248
 249         /* Current gmem/tiling configuration.. gets updated on render_tiles()
 250          * if out of date with current maximal-scissor/cpp:
 251          *
 252          * (NOTE: this is kind of related to the batch, but moving it there
 253          * means we'd always have to recalc tiles ever batch)
 254          */
 255         struct fd_gmem_stateobj gmem;
 256         struct fd_vsc_pipe      vsc_pipe[16];
 257         struct fd_tile          tile[512];
 258
 259         /* which state objects need to be re-emit'd: */
 260         enum fd_dirty_3d_state dirty;
 261
 262         /* per shader-stage dirty status: */
 263         enum fd_dirty_shader_state dirty_shader[PIPE_SHADER_TYPES];
 264
 265         void *compute;
 266         struct pipe_blend_state *blend;
 267         struct pipe_rasterizer_state *rasterizer;
 268         struct pipe_depth_stencil_alpha_state *zsa;
 269
 270         struct fd_texture_stateobj tex[PIPE_SHADER_TYPES];
 271
 272         struct fd_program_stateobj prog;
 273
 274         struct fd_vertex_state vtx;
 275
 276         struct pipe_blend_color blend_color;
 277         struct pipe_stencil_ref stencil_ref;
 278         unsigned sample_mask;
 279         struct pipe_poly_stipple stipple;
 280         struct pipe_viewport_state viewport;
 281         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 282         struct fd_shaderbuf_stateobj shaderbuf[PIPE_SHADER_TYPES];
 283         struct fd_shaderimg_stateobj shaderimg[PIPE_SHADER_TYPES];
 284         struct fd_streamout_stateobj streamout;
 285         struct pipe_clip_state ucp;
 286
 287         struct pipe_query *cond_query;
 288         bool cond_cond; /* inverted rendering condition */
 289         uint cond_mode;
 290
 291         struct pipe_debug_callback debug;
 292
 293         /* GMEM/tile handling fxns: */
 294         void (*emit_tile_init)(struct fd_batch *batch);
 295         void (*emit_tile_prep)(struct fd_batch *batch, struct fd_tile *tile);
 296         void (*emit_tile_mem2gmem)(struct fd_batch *batch, struct fd_tile *tile);
 297         void (*emit_tile_renderprep)(struct fd_batch *batch, struct fd_tile *tile);
 298         void (*emit_tile_gmem2mem)(struct fd_batch *batch, struct fd_tile *tile);
 299         void (*emit_tile_fini)(struct fd_batch *batch);   /* optional */
 300
 301         /* optional, for GMEM bypass: */
 302         void (*emit_sysmem_prep)(struct fd_batch *batch);
 303         void (*emit_sysmem_fini)(struct fd_batch *batch);
 304
 305         /* draw: */
 306         bool (*draw_vbo)(struct fd_context *ctx, const struct pipe_draw_info *info,
 307                         unsigned index_offset);
 308         bool (*clear)(struct fd_context *ctx, unsigned buffers,
 309                         const union pipe_color_union *color, double depth, unsigned stencil);
 310
 311         /* compute: */
 312         void (*launch_grid)(struct fd_context *ctx, const struct pipe_grid_info *info);
 313
 314         /* constant emit:  (note currently not used/needed for a2xx) */
 315         void (*emit_const)(struct fd_ringbuffer *ring, enum shader_t type,
 316                         uint32_t regid, uint32_t offset, uint32_t sizedwords,
 317                         const uint32_t *dwords, struct pipe_resource *prsc);
 318         /* emit bo addresses as constant: */
 319         void (*emit_const_bo)(struct fd_ringbuffer *ring, enum shader_t type, boolean write,
 320                         uint32_t regid, uint32_t num, struct pipe_resource **prscs, uint32_t *offsets);
 321
 322         /* indirect-branch emit: */
 323         void (*emit_ib)(struct fd_ringbuffer *ring, struct fd_ringbuffer *target);
 324
 325         /* query: */
 326         struct fd_query * (*create_query)(struct fd_context *ctx, unsigned query_type);
 327         void (*query_prepare)(struct fd_batch *batch, uint32_t num_tiles);
 328         void (*query_prepare_tile)(struct fd_batch *batch, uint32_t n,
 329                         struct fd_ringbuffer *ring);
 330         void (*query_set_stage)(struct fd_batch *batch, enum fd_render_stage stage);
 331
 332         /* blit: */
 333         void (*blit)(struct fd_context *ctx, const struct pipe_blit_info *info);
 334
 335         /*
 336          * Common pre-cooked VBO state (used for a3xx and later):
 337          */
 338
 339         /* for clear/gmem->mem vertices, and mem->gmem */
 340         struct pipe_resource *solid_vbuf;
 341
 342         /* for mem->gmem tex coords: */
 343         struct pipe_resource *blit_texcoord_vbuf;
 344
 345         /* vertex state for solid_vbuf:
 346          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 347          */
 348         struct fd_vertex_state solid_vbuf_state;
 349
 350         /* vertex state for blit_prog:
 351          *    - blit_texcoord_vbuf / 8 / R32G32_FLOAT
 352          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 353          */
 354         struct fd_vertex_state blit_vbuf_state;
 355 };
 356
 357 static inline struct fd_context *
 358 fd_context(struct pipe_context *pctx)
 359 {
 360         return (struct fd_context *)pctx;
 361 }
 362
 363 static inline void
 364 fd_context_assert_locked(struct fd_context *ctx)
 365 {
 366         pipe_mutex_assert_locked(ctx->screen->lock);
 367 }
 368
 369 static inline void
 370 fd_context_lock(struct fd_context *ctx)
 371 {
 372         mtx_lock(&ctx->screen->lock);
 373 }
 374
 375 static inline void
 376 fd_context_unlock(struct fd_context *ctx)
 377 {
 378         mtx_unlock(&ctx->screen->lock);
 379 }
 380
 381 /* mark all state dirty: */
 382 static inline void
 383 fd_context_all_dirty(struct fd_context *ctx)
 384 {
 385         ctx->dirty = ~0;
 386         for (unsigned i = 0; i < PIPE_SHADER_TYPES; i++)
 387                 ctx->dirty_shader[i] = ~0;
 388 }
 389
 390 static inline void
 391 fd_context_all_clean(struct fd_context *ctx)
 392 {
 393         ctx->dirty = 0;
 394         for (unsigned i = 0; i < PIPE_SHADER_TYPES; i++) {
 395                 /* don't mark compute state as clean, since it is not emitted
 396                  * during normal draw call.  The places that call _all_dirty(),
 397                  * it is safe to mark compute state dirty as well, but the
 398                  * inverse is not true.
 399                  */
 400                 if (i == PIPE_SHADER_COMPUTE)
 401                         continue;
 402                 ctx->dirty_shader[i] = 0;
 403         }
 404 }
 405
 406 static inline struct pipe_scissor_state *
 407 fd_context_get_scissor(struct fd_context *ctx)
 408 {
 409         if (ctx->rasterizer && ctx->rasterizer->scissor)
 410                 return &ctx->scissor;
 411         return &ctx->disabled_scissor;
 412 }
 413
 414 static inline bool
 415 fd_supported_prim(struct fd_context *ctx, unsigned prim)
 416 {
 417         return (1 << prim) & ctx->primtype_mask;
 418 }
 419
 420 static inline void
 421 fd_batch_set_stage(struct fd_batch *batch, enum fd_render_stage stage)
 422 {
 423         struct fd_context *ctx = batch->ctx;
 424
 425         /* special case: internal blits (like mipmap level generation)
 426          * go through normal draw path (via util_blitter_blit()).. but
 427          * we need to ignore the FD_STAGE_DRAW which will be set, so we
 428          * don't enable queries which should be paused during internal
 429          * blits:
 430          */
 431         if ((batch->stage == FD_STAGE_BLIT) &&
 432                         (stage != FD_STAGE_NULL))
 433                 return;
 434
 435         if (ctx->query_set_stage)
 436                 ctx->query_set_stage(batch, stage);
 437
 438         batch->stage = stage;
 439 }
 440
 441 void fd_context_setup_common_vbos(struct fd_context *ctx);
 442 void fd_context_cleanup_common_vbos(struct fd_context *ctx);
 443
 444 struct pipe_context * fd_context_init(struct fd_context *ctx,
 445                 struct pipe_screen *pscreen, const uint8_t *primtypes,
 446                 void *priv, unsigned flags);
 447
 448 void fd_context_destroy(struct pipe_context *pctx);
 449
 450 #endif /* FREEDRENO_CONTEXT_H_ */