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 #define VC4_DIRTY_BLEND         (1 <<  0)
  42 #define VC4_DIRTY_RASTERIZER    (1 <<  1)
  43 #define VC4_DIRTY_ZSA           (1 <<  2)
  44 #define VC4_DIRTY_FRAGTEX       (1 <<  3)
  45 #define VC4_DIRTY_VERTTEX       (1 <<  4)
  46 #define VC4_DIRTY_TEXSTATE      (1 <<  5)
  47 #define VC4_DIRTY_PROG          (1 <<  6)
  48 #define VC4_DIRTY_BLEND_COLOR   (1 <<  7)
  49 #define VC4_DIRTY_STENCIL_REF   (1 <<  8)
  50 #define VC4_DIRTY_SAMPLE_MASK   (1 <<  9)
  51 #define VC4_DIRTY_FRAMEBUFFER   (1 << 10)
  52 #define VC4_DIRTY_STIPPLE       (1 << 11)
  53 #define VC4_DIRTY_VIEWPORT      (1 << 12)
  54 #define VC4_DIRTY_CONSTBUF      (1 << 13)
  55 #define VC4_DIRTY_VTXSTATE      (1 << 14)
  56 #define VC4_DIRTY_VTXBUF        (1 << 15)
  57 #define VC4_DIRTY_INDEXBUF      (1 << 16)
  58 #define VC4_DIRTY_SCISSOR       (1 << 17)
  59 #define VC4_DIRTY_FLAT_SHADE_FLAGS (1 << 18)
  60 #define VC4_DIRTY_PRIM_MODE     (1 << 19)
  61 #define VC4_DIRTY_CLIP          (1 << 20)
  62
  63 #define VC4_SHADER_DIRTY_VP     (1 << 0)
  64 #define VC4_SHADER_DIRTY_FP     (1 << 1)
  65
  66 struct vc4_texture_stateobj {
  67         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  68         unsigned num_textures;
  69         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  70         unsigned num_samplers;
  71         unsigned dirty_samplers;
  72 };
  73
  74 struct vc4_shader_uniform_info {
  75         enum quniform_contents *contents;
  76         uint32_t *data;
  77         uint32_t count;
  78         uint32_t num_texture_samples;
  79 };
  80
  81 struct vc4_uncompiled_shader {
  82         /** A name for this program, so you can track it in shader-db output. */
  83         uint32_t program_id;
  84         /** How many variants of this program were compiled, for shader-db. */
  85         uint32_t compiled_variant_count;
  86         struct pipe_shader_state base;
  87         const struct tgsi_token *twoside_tokens;
  88 };
  89
  90 struct vc4_ubo_range {
  91         /**
  92          * offset in bytes from the start of the ubo where this range is
  93          * uploaded.
  94          *
  95          * Only set once used is set.
  96          */
  97         uint32_t dst_offset;
  98
  99         /**
 100          * offset in bytes from the start of the gallium uniforms where the
 101          * data comes from.
 102          */
 103         uint32_t src_offset;
 104
 105         /** size in bytes of this ubo range */
 106         uint32_t size;
 107 };
 108
 109 struct vc4_compiled_shader {
 110         uint64_t program_id;
 111         struct vc4_bo *bo;
 112
 113         struct vc4_shader_uniform_info uniforms;
 114
 115         struct vc4_ubo_range *ubo_ranges;
 116         uint32_t num_ubo_ranges;
 117         uint32_t ubo_size;
 118
 119         /** bitmask of which inputs are color inputs, for flat shade handling. */
 120         uint32_t color_inputs;
 121
 122         uint8_t num_inputs;
 123
 124         /**
 125          * Array of the meanings of the VPM inputs this shader needs.
 126          *
 127          * It doesn't include those that aren't part of the VPM, like
 128          * point/line coordinates.
 129          */
 130         struct vc4_varying_semantic *input_semantics;
 131 };
 132
 133 struct vc4_program_stateobj {
 134         struct vc4_uncompiled_shader *bind_vs, *bind_fs;
 135         struct vc4_compiled_shader *cs, *vs, *fs;
 136         uint32_t dirty;
 137         uint8_t num_exports;
 138         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
 139          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
 140          * size) are not included in this
 141          */
 142         uint8_t export_linkage[63];
 143 };
 144
 145 struct vc4_constbuf_stateobj {
 146         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
 147         uint32_t enabled_mask;
 148         uint32_t dirty_mask;
 149 };
 150
 151 struct vc4_vertexbuf_stateobj {
 152         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 153         unsigned count;
 154         uint32_t enabled_mask;
 155         uint32_t dirty_mask;
 156 };
 157
 158 struct vc4_vertex_stateobj {
 159         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
 160         unsigned num_elements;
 161 };
 162
 163 struct vc4_context {
 164         struct pipe_context base;
 165
 166         int fd;
 167         struct vc4_screen *screen;
 168
 169         struct vc4_cl bcl;
 170         struct vc4_cl rcl;
 171         struct vc4_cl shader_rec;
 172         struct vc4_cl uniforms;
 173         struct vc4_cl bo_handles;
 174         struct vc4_cl bo_pointers;
 175         uint32_t shader_rec_count;
 176
 177         struct vc4_bo *tile_alloc;
 178         struct vc4_bo *tile_state;
 179
 180         struct util_slab_mempool transfer_pool;
 181         struct blitter_context *blitter;
 182
 183         /** bitfield of VC4_DIRTY_* */
 184         uint32_t dirty;
 185         /* Bitmask of PIPE_CLEAR_* of buffers that were cleared before the
 186          * first rendering.
 187          */
 188         uint32_t cleared;
 189         /* Bitmask of PIPE_CLEAR_* of buffers that have been rendered to
 190          * (either clears or draws).
 191          */
 192         uint32_t resolve;
 193         uint32_t clear_color[2];
 194         uint32_t clear_depth; /**< 24-bit unorm depth */
 195         uint8_t clear_stencil;
 196
 197         /**
 198          * Set if some drawing (triangles, blits, or just a glClear()) has
 199          * been done to the FBO, meaning that we need to
 200          * DRM_IOCTL_VC4_SUBMIT_CL.
 201          */
 202         bool needs_flush;
 203
 204         /**
 205          * Set when needs_flush, and the queued rendering is not just composed
 206          * of full-buffer clears.
 207          */
 208         bool draw_call_queued;
 209
 210         struct primconvert_context *primconvert;
 211
 212         struct hash_table *fs_cache, *vs_cache;
 213         uint32_t next_uncompiled_program_id;
 214         uint64_t next_compiled_program_id;
 215
 216         struct ra_regs *regs;
 217         unsigned int reg_class_any;
 218         unsigned int reg_class_a;
 219
 220         uint8_t prim_mode;
 221
 222         /** Seqno of the last CL flush's job. */
 223         uint64_t last_emit_seqno;
 224
 225         /** @{ Current pipeline state objects */
 226         struct pipe_scissor_state scissor;
 227         struct pipe_blend_state *blend;
 228         struct vc4_rasterizer_state *rasterizer;
 229         struct vc4_depth_stencil_alpha_state *zsa;
 230
 231         struct vc4_texture_stateobj verttex, fragtex;
 232
 233         struct vc4_program_stateobj prog;
 234
 235         struct vc4_vertex_stateobj *vtx;
 236
 237         struct pipe_blend_color blend_color;
 238         struct pipe_stencil_ref stencil_ref;
 239         unsigned sample_mask;
 240         struct pipe_framebuffer_state framebuffer;
 241         struct pipe_poly_stipple stipple;
 242         struct pipe_clip_state clip;
 243         struct pipe_viewport_state viewport;
 244         struct vc4_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 245         struct vc4_vertexbuf_stateobj vertexbuf;
 246         struct pipe_index_buffer indexbuf;
 247         /** @} */
 248 };
 249
 250 struct vc4_rasterizer_state {
 251         struct pipe_rasterizer_state base;
 252
 253         /* VC4_CONFIGURATION_BITS */
 254         uint8_t config_bits[3];
 255
 256         float point_size;
 257
 258         /**
 259          * Half-float (1/8/7 bits) value of polygon offset units for
 260          * VC4_PACKET_DEPTH_OFFSET
 261          */
 262         uint16_t offset_units;
 263         /**
 264          * Half-float (1/8/7 bits) value of polygon offset scale for
 265          * VC4_PACKET_DEPTH_OFFSET
 266          */
 267         uint16_t offset_factor;
 268 };
 269
 270 struct vc4_depth_stencil_alpha_state {
 271         struct pipe_depth_stencil_alpha_state base;
 272
 273         /* VC4_CONFIGURATION_BITS */
 274         uint8_t config_bits[3];
 275
 276         /** Uniforms for stencil state.
 277          *
 278          * Index 0 is either the front config, or the front-and-back config.
 279          * Index 1 is the back config if doing separate back stencil.
 280          * Index 2 is the writemask config if it's not a common mask value.
 281          */
 282         uint32_t stencil_uniforms[3];
 283 };
 284
 285 static inline struct vc4_context *
 286 vc4_context(struct pipe_context *pcontext)
 287 {
 288         return (struct vc4_context *)pcontext;
 289 }
 290
 291 struct pipe_context *vc4_context_create(struct pipe_screen *pscreen,
 292                                         void *priv);
 293 void vc4_draw_init(struct pipe_context *pctx);
 294 void vc4_state_init(struct pipe_context *pctx);
 295 void vc4_program_init(struct pipe_context *pctx);
 296 void vc4_program_fini(struct pipe_context *pctx);
 297 void vc4_query_init(struct pipe_context *pctx);
 298 void vc4_simulator_init(struct vc4_screen *screen);
 299 int vc4_simulator_flush(struct vc4_context *vc4,
 300                         struct drm_vc4_submit_cl *args);
 301
 302 void vc4_write_uniforms(struct vc4_context *vc4,
 303                         struct vc4_compiled_shader *shader,
 304                         struct vc4_constbuf_stateobj *cb,
 305                         struct vc4_texture_stateobj *texstate);
 306
 307 void vc4_flush(struct pipe_context *pctx);
 308 bool vc4_cl_references_bo(struct pipe_context *pctx, struct vc4_bo *bo);
 309 void vc4_emit_state(struct pipe_context *pctx);
 310 void vc4_generate_code(struct vc4_context *vc4, struct vc4_compile *c);
 311 struct qpu_reg *vc4_register_allocate(struct vc4_context *vc4, struct vc4_compile *c);
 312 void vc4_update_compiled_shaders(struct vc4_context *vc4, uint8_t prim_mode);
 313
 314 bool vc4_rt_format_supported(enum pipe_format f);
 315 bool vc4_rt_format_is_565(enum pipe_format f);
 316 bool vc4_tex_format_supported(enum pipe_format f);
 317 uint8_t vc4_get_tex_format(enum pipe_format f);
 318 const uint8_t *vc4_get_format_swizzle(enum pipe_format f);
 319 void vc4_init_query_functions(struct vc4_context *vc4);
 320 #endif /* VC4_CONTEXT_H */