src/gallium/drivers/vc4/vc4_context.h

   1 /*
   2  * Copyright © 2014 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 VC4_CONTEXT_H
  26 #define VC4_CONTEXT_H
  27
  28 #include <stdio.h>
  29
  30 #include "pipe/p_context.h"
  31 #include "pipe/p_state.h"
  32 #include "util/u_slab.h"
  33
  34 #define __user
  35 #include "vc4_drm.h"
  36 #include "vc4_bufmgr.h"
  37 #include "vc4_resource.h"
  38 #include "vc4_cl.h"
  39 #include "vc4_qir.h"
  40
  41 #ifdef USE_VC4_SIMULATOR
  42 #define using_vc4_simulator true
  43 #else
  44 #define using_vc4_simulator false
  45 #endif
  46
  47 #define VC4_DIRTY_BLEND         (1 <<  0)
  48 #define VC4_DIRTY_RASTERIZER    (1 <<  1)
  49 #define VC4_DIRTY_ZSA           (1 <<  2)
  50 #define VC4_DIRTY_FRAGTEX       (1 <<  3)
  51 #define VC4_DIRTY_VERTTEX       (1 <<  4)
  52 #define VC4_DIRTY_TEXSTATE      (1 <<  5)
  53
  54 #define VC4_DIRTY_BLEND_COLOR   (1 <<  7)
  55 #define VC4_DIRTY_STENCIL_REF   (1 <<  8)
  56 #define VC4_DIRTY_SAMPLE_MASK   (1 <<  9)
  57 #define VC4_DIRTY_FRAMEBUFFER   (1 << 10)
  58 #define VC4_DIRTY_STIPPLE       (1 << 11)
  59 #define VC4_DIRTY_VIEWPORT      (1 << 12)
  60 #define VC4_DIRTY_CONSTBUF      (1 << 13)
  61 #define VC4_DIRTY_VTXSTATE      (1 << 14)
  62 #define VC4_DIRTY_VTXBUF        (1 << 15)
  63 #define VC4_DIRTY_INDEXBUF      (1 << 16)
  64 #define VC4_DIRTY_SCISSOR       (1 << 17)
  65 #define VC4_DIRTY_FLAT_SHADE_FLAGS (1 << 18)
  66 #define VC4_DIRTY_PRIM_MODE     (1 << 19)
  67 #define VC4_DIRTY_CLIP          (1 << 20)
  68 #define VC4_DIRTY_UNCOMPILED_VS (1 << 21)
  69 #define VC4_DIRTY_UNCOMPILED_FS (1 << 22)
  70 #define VC4_DIRTY_COMPILED_FS   (1 << 24)
  71
  72 struct vc4_sampler_view {
  73         struct pipe_sampler_view base;
  74         uint32_t texture_p0;
  75         uint32_t texture_p1;
  76 };
  77
  78 struct vc4_sampler_state {
  79         struct pipe_sampler_state base;
  80         uint32_t texture_p1;
  81 };
  82
  83 struct vc4_texture_stateobj {
  84         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  85         unsigned num_textures;
  86         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  87         unsigned num_samplers;
  88         unsigned dirty_samplers;
  89 };
  90
  91 struct vc4_shader_uniform_info {
  92         enum quniform_contents *contents;
  93         uint32_t *data;
  94         uint32_t count;
  95         uint32_t num_texture_samples;
  96 };
  97
  98 struct vc4_uncompiled_shader {
  99         /** A name for this program, so you can track it in shader-db output. */
 100         uint32_t program_id;
 101         /** How many variants of this program were compiled, for shader-db. */
 102         uint32_t compiled_variant_count;
 103         struct pipe_shader_state base;
 104         const struct tgsi_token *twoside_tokens;
 105 };
 106
 107 struct vc4_ubo_range {
 108         /**
 109          * offset in bytes from the start of the ubo where this range is
 110          * uploaded.
 111          *
 112          * Only set once used is set.
 113          */
 114         uint32_t dst_offset;
 115
 116         /**
 117          * offset in bytes from the start of the gallium uniforms where the
 118          * data comes from.
 119          */
 120         uint32_t src_offset;
 121
 122         /** size in bytes of this ubo range */
 123         uint32_t size;
 124 };
 125
 126 struct vc4_compiled_shader {
 127         uint64_t program_id;
 128         struct vc4_bo *bo;
 129
 130         struct vc4_shader_uniform_info uniforms;
 131
 132         struct vc4_ubo_range *ubo_ranges;
 133         uint32_t num_ubo_ranges;
 134         uint32_t ubo_size;
 135
 136         /** bitmask of which inputs are color inputs, for flat shade handling. */
 137         uint32_t color_inputs;
 138
 139         uint8_t num_inputs;
 140
 141         /* Byte offsets for the start of the vertex attributes 0-7, and the
 142          * total size as "attribute" 8.
 143          */
 144         uint8_t vattr_offsets[9];
 145         uint8_t vattrs_live;
 146
 147         /**
 148          * Array of the meanings of the VPM inputs this shader needs.
 149          *
 150          * It doesn't include those that aren't part of the VPM, like
 151          * point/line coordinates.
 152          */
 153         struct vc4_varying_semantic *input_semantics;
 154 };
 155
 156 struct vc4_program_stateobj {
 157         struct vc4_uncompiled_shader *bind_vs, *bind_fs;
 158         struct vc4_compiled_shader *cs, *vs, *fs;
 159         uint8_t num_exports;
 160         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
 161          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
 162          * size) are not included in this
 163          */
 164         uint8_t export_linkage[63];
 165 };
 166
 167 struct vc4_constbuf_stateobj {
 168         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
 169         uint32_t enabled_mask;
 170         uint32_t dirty_mask;
 171 };
 172
 173 struct vc4_vertexbuf_stateobj {
 174         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 175         unsigned count;
 176         uint32_t enabled_mask;
 177         uint32_t dirty_mask;
 178 };
 179
 180 struct vc4_vertex_stateobj {
 181         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
 182         unsigned num_elements;
 183 };
 184
 185 struct vc4_context {
 186         struct pipe_context base;
 187
 188         int fd;
 189         struct vc4_screen *screen;
 190
 191         struct vc4_cl bcl;
 192         struct vc4_cl shader_rec;
 193         struct vc4_cl uniforms;
 194         struct vc4_cl bo_handles;
 195         struct vc4_cl bo_pointers;
 196         uint32_t shader_rec_count;
 197
 198         /** @{ Surfaces to submit rendering for. */
 199         struct pipe_surface *color_read;
 200         struct pipe_surface *color_write;
 201         struct pipe_surface *zs_read;
 202         struct pipe_surface *zs_write;
 203         /** @} */
 204         /** @{
 205          * Bounding box of the scissor across all queued drawing.
 206          *
 207          * Note that the max values are exclusive.
 208          */
 209         uint32_t draw_min_x;
 210         uint32_t draw_min_y;
 211         uint32_t draw_max_x;
 212         uint32_t draw_max_y;
 213         /** @} */
 214         /** @{
 215          * Width/height of the color framebuffer being rendered to,
 216          * for VC4_TILE_RENDERING_MODE_CONFIG.
 217         */
 218         uint32_t draw_width;
 219         uint32_t draw_height;
 220         /** @} */
 221
 222         struct util_slab_mempool transfer_pool;
 223         struct blitter_context *blitter;
 224
 225         /** bitfield of VC4_DIRTY_* */
 226         uint32_t dirty;
 227         /* Bitmask of PIPE_CLEAR_* of buffers that were cleared before the
 228          * first rendering.
 229          */
 230         uint32_t cleared;
 231         /* Bitmask of PIPE_CLEAR_* of buffers that have been rendered to
 232          * (either clears or draws).
 233          */
 234         uint32_t resolve;
 235         uint32_t clear_color[2];
 236         uint32_t clear_depth; /**< 24-bit unorm depth */
 237         uint8_t clear_stencil;
 238
 239         /**
 240          * Set if some drawing (triangles, blits, or just a glClear()) has
 241          * been done to the FBO, meaning that we need to
 242          * DRM_IOCTL_VC4_SUBMIT_CL.
 243          */
 244         bool needs_flush;
 245
 246         /**
 247          * Set when needs_flush, and the queued rendering is not just composed
 248          * of full-buffer clears.
 249          */
 250         bool draw_call_queued;
 251
 252         struct primconvert_context *primconvert;
 253
 254         struct hash_table *fs_cache, *vs_cache;
 255         uint32_t next_uncompiled_program_id;
 256         uint64_t next_compiled_program_id;
 257
 258         struct ra_regs *regs;
 259         unsigned int reg_class_any;
 260         unsigned int reg_class_a;
 261
 262         uint8_t prim_mode;
 263
 264         /** Seqno of the last CL flush's job. */
 265         uint64_t last_emit_seqno;
 266
 267         struct u_upload_mgr *uploader;
 268
 269         /** @{ Current pipeline state objects */
 270         struct pipe_scissor_state scissor;
 271         struct pipe_blend_state *blend;
 272         struct vc4_rasterizer_state *rasterizer;
 273         struct vc4_depth_stencil_alpha_state *zsa;
 274
 275         struct vc4_texture_stateobj verttex, fragtex;
 276
 277         struct vc4_program_stateobj prog;
 278
 279         struct vc4_vertex_stateobj *vtx;
 280
 281         struct pipe_blend_color blend_color;
 282         struct pipe_stencil_ref stencil_ref;
 283         unsigned sample_mask;
 284         struct pipe_framebuffer_state framebuffer;
 285         struct pipe_poly_stipple stipple;
 286         struct pipe_clip_state clip;
 287         struct pipe_viewport_state viewport;
 288         struct vc4_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 289         struct vc4_vertexbuf_stateobj vertexbuf;
 290         struct pipe_index_buffer indexbuf;
 291         /** @} */
 292 };
 293
 294 struct vc4_rasterizer_state {
 295         struct pipe_rasterizer_state base;
 296
 297         /* VC4_CONFIGURATION_BITS */
 298         uint8_t config_bits[3];
 299
 300         float point_size;
 301
 302         /**
 303          * Half-float (1/8/7 bits) value of polygon offset units for
 304          * VC4_PACKET_DEPTH_OFFSET
 305          */
 306         uint16_t offset_units;
 307         /**
 308          * Half-float (1/8/7 bits) value of polygon offset scale for
 309          * VC4_PACKET_DEPTH_OFFSET
 310          */
 311         uint16_t offset_factor;
 312 };
 313
 314 struct vc4_depth_stencil_alpha_state {
 315         struct pipe_depth_stencil_alpha_state base;
 316
 317         /* VC4_CONFIGURATION_BITS */
 318         uint8_t config_bits[3];
 319
 320         /** Uniforms for stencil state.
 321          *
 322          * Index 0 is either the front config, or the front-and-back config.
 323          * Index 1 is the back config if doing separate back stencil.
 324          * Index 2 is the writemask config if it's not a common mask value.
 325          */
 326         uint32_t stencil_uniforms[3];
 327 };
 328
 329 #define perf_debug(...) do {                            \
 330         if (unlikely(vc4_debug & VC4_DEBUG_PERF))       \
 331                 fprintf(stderr, __VA_ARGS__);           \
 332 } while (0)
 333
 334 static inline struct vc4_context *
 335 vc4_context(struct pipe_context *pcontext)
 336 {
 337         return (struct vc4_context *)pcontext;
 338 }
 339
 340 static inline struct vc4_sampler_view *
 341 vc4_sampler_view(struct pipe_sampler_view *psview)
 342 {
 343         return (struct vc4_sampler_view *)psview;
 344 }
 345
 346 static inline struct vc4_sampler_state *
 347 vc4_sampler_state(struct pipe_sampler_state *psampler)
 348 {
 349         return (struct vc4_sampler_state *)psampler;
 350 }
 351
 352 struct pipe_context *vc4_context_create(struct pipe_screen *pscreen,
 353                                         void *priv);
 354 void vc4_draw_init(struct pipe_context *pctx);
 355 void vc4_state_init(struct pipe_context *pctx);
 356 void vc4_program_init(struct pipe_context *pctx);
 357 void vc4_program_fini(struct pipe_context *pctx);
 358 void vc4_query_init(struct pipe_context *pctx);
 359 void vc4_simulator_init(struct vc4_screen *screen);
 360 int vc4_simulator_flush(struct vc4_context *vc4,
 361                         struct drm_vc4_submit_cl *args);
 362
 363 void vc4_write_uniforms(struct vc4_context *vc4,
 364                         struct vc4_compiled_shader *shader,
 365                         struct vc4_constbuf_stateobj *cb,
 366                         struct vc4_texture_stateobj *texstate);
 367
 368 void vc4_flush(struct pipe_context *pctx);
 369 void vc4_job_init(struct vc4_context *vc4);
 370 void vc4_job_submit(struct vc4_context *vc4);
 371 void vc4_job_reset(struct vc4_context *vc4);
 372 bool vc4_cl_references_bo(struct pipe_context *pctx, struct vc4_bo *bo);
 373 void vc4_emit_state(struct pipe_context *pctx);
 374 void vc4_generate_code(struct vc4_context *vc4, struct vc4_compile *c);
 375 struct qpu_reg *vc4_register_allocate(struct vc4_context *vc4, struct vc4_compile *c);
 376 void vc4_update_compiled_shaders(struct vc4_context *vc4, uint8_t prim_mode);
 377
 378 bool vc4_rt_format_supported(enum pipe_format f);
 379 bool vc4_rt_format_is_565(enum pipe_format f);
 380 bool vc4_tex_format_supported(enum pipe_format f);
 381 uint8_t vc4_get_tex_format(enum pipe_format f);
 382 const uint8_t *vc4_get_format_swizzle(enum pipe_format f);
 383 void vc4_init_query_functions(struct vc4_context *vc4);
 384 void vc4_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info);
 385 #endif /* VC4_CONTEXT_H */