src/gallium/drivers/radeonsi/si_shader_internal.h

   1 /*
   2  * Copyright 2016 Advanced Micro Devices, Inc.
   3  * All Rights Reserved.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #ifndef SI_SHADER_PRIVATE_H
  26 #define SI_SHADER_PRIVATE_H
  27
  28 #include "si_shader.h"
  29 #include "ac_shader_abi.h"
  30
  31 struct pipe_debug_callback;
  32
  33 #define RADEON_LLVM_MAX_INPUTS 32 * 4
  34
  35 /* Ideally pass the sample mask input to the PS epilog as v14, which
  36  * is its usual location, so that the shader doesn't have to add v_mov.
  37  */
  38 #define PS_EPILOG_SAMPLEMASK_MIN_LOC 14
  39
  40 struct si_shader_output_values {
  41         LLVMValueRef values[4];
  42         unsigned semantic_name;
  43         unsigned semantic_index;
  44         ubyte vertex_stream[4];
  45 };
  46
  47 struct si_shader_context {
  48         struct ac_llvm_context ac;
  49         struct si_shader *shader;
  50         struct si_screen *screen;
  51
  52         unsigned type; /* PIPE_SHADER_* specifies the type of shader. */
  53
  54         /* For clamping the non-constant index in resource indexing: */
  55         unsigned num_const_buffers;
  56         unsigned num_shader_buffers;
  57         unsigned num_images;
  58         unsigned num_samplers;
  59
  60         struct ac_shader_args args;
  61         struct ac_shader_abi abi;
  62
  63         LLVMValueRef inputs[RADEON_LLVM_MAX_INPUTS];
  64
  65         LLVMBasicBlockRef merged_wrap_if_entry_block;
  66         int merged_wrap_if_label;
  67
  68         LLVMValueRef main_fn;
  69         LLVMTypeRef return_type;
  70
  71         struct ac_arg const_and_shader_buffers;
  72         struct ac_arg samplers_and_images;
  73
  74         /* For merged shaders, the per-stage descriptors for the stage other
  75          * than the one we're processing, used to pass them through from the
  76          * first stage to the second.
  77          */
  78         struct ac_arg other_const_and_shader_buffers;
  79         struct ac_arg other_samplers_and_images;
  80
  81         struct ac_arg rw_buffers;
  82         struct ac_arg bindless_samplers_and_images;
  83         /* Common inputs for merged shaders. */
  84         struct ac_arg merged_wave_info;
  85         struct ac_arg merged_scratch_offset;
  86         /* API VS */
  87         struct ac_arg vertex_buffers;
  88         struct ac_arg vb_descriptors[5];
  89         struct ac_arg rel_auto_id;
  90         struct ac_arg vs_prim_id;
  91         struct ac_arg vertex_index0;
  92         /* VS states and layout of LS outputs / TCS inputs at the end
  93          *   [0] = clamp vertex color
  94          *   [1] = indexed
  95          *   [2:3] = NGG: output primitive type
  96          *   [4:5] = NGG: provoking vertex index
  97          *   [6]   = NGG: streamout queries enabled
  98          *   [11:23] = stride between patches in DW = num_inputs * num_vertices * 4
  99          *             max = 32*32*4 + 32*4
 100          *   [24:31] = stride between vertices in DW = num_inputs * 4
 101          *             max = 32*4
 102          */
 103         struct ac_arg vs_state_bits;
 104         struct ac_arg vs_blit_inputs;
 105         /* HW VS */
 106         struct ac_arg streamout_config;
 107         struct ac_arg streamout_write_index;
 108         struct ac_arg streamout_offset[4];
 109
 110         /* API TCS & TES */
 111         /* Layout of TCS outputs in the offchip buffer
 112          * # 6 bits
 113          *   [0:5] = the number of patches per threadgroup, max = NUM_PATCHES (40)
 114          * # 6 bits
 115          *   [6:11] = the number of output vertices per patch, max = 32
 116          * # 20 bits
 117          *   [12:31] = the offset of per patch attributes in the buffer in bytes.
 118          *             max = NUM_PATCHES*32*32*16
 119          */
 120         struct ac_arg tcs_offchip_layout;
 121
 122         /* API TCS */
 123         /* Offsets where TCS outputs and TCS patch outputs live in LDS:
 124          *   [0:15] = TCS output patch0 offset / 16, max = NUM_PATCHES * 32 * 32
 125          *   [16:31] = TCS output patch0 offset for per-patch / 16
 126          *             max = (NUM_PATCHES + 1) * 32*32
 127          */
 128         struct ac_arg tcs_out_lds_offsets;
 129         /* Layout of TCS outputs / TES inputs:
 130          *   [0:12] = stride between output patches in DW, num_outputs * num_vertices * 4
 131          *            max = 32*32*4 + 32*4
 132          *   [13:18] = gl_PatchVerticesIn, max = 32
 133          *   [19:31] = high 13 bits of the 32-bit address of tessellation ring buffers
 134          */
 135         struct ac_arg tcs_out_lds_layout;
 136         struct ac_arg tcs_offchip_offset;
 137         struct ac_arg tcs_factor_offset;
 138
 139         /* API TES */
 140         struct ac_arg tes_offchip_addr;
 141         struct ac_arg tes_u;
 142         struct ac_arg tes_v;
 143         struct ac_arg tes_rel_patch_id;
 144         /* HW ES */
 145         struct ac_arg es2gs_offset;
 146         /* HW GS */
 147         /* On gfx10:
 148          *  - bits 0..11: ordered_wave_id
 149          *  - bits 12..20: number of vertices in group
 150          *  - bits 22..30: number of primitives in group
 151          */
 152         struct ac_arg gs_tg_info;
 153         /* API GS */
 154         struct ac_arg gs2vs_offset;
 155         struct ac_arg gs_wave_id; /* GFX6 */
 156         struct ac_arg gs_vtx_offset[6]; /* in dwords (GFX6) */
 157         struct ac_arg gs_vtx01_offset; /* in dwords (GFX9) */
 158         struct ac_arg gs_vtx23_offset; /* in dwords (GFX9) */
 159         struct ac_arg gs_vtx45_offset; /* in dwords (GFX9) */
 160         /* PS */
 161         struct ac_arg pos_fixed_pt;
 162         /* CS */
 163         struct ac_arg block_size;
 164         struct ac_arg cs_user_data;
 165
 166         struct ac_llvm_compiler *compiler;
 167
 168         /* Preloaded descriptors. */
 169         LLVMValueRef esgs_ring;
 170         LLVMValueRef gsvs_ring[4];
 171         LLVMValueRef tess_offchip_ring;
 172
 173         LLVMValueRef invoc0_tess_factors[6]; /* outer[4], inner[2] */
 174         LLVMValueRef gs_next_vertex[4];
 175         LLVMValueRef gs_curprim_verts[4];
 176         LLVMValueRef gs_generated_prims[4];
 177         LLVMValueRef gs_ngg_emit;
 178         LLVMValueRef gs_ngg_scratch;
 179         LLVMValueRef postponed_kill;
 180         LLVMValueRef return_value;
 181
 182         LLVMTypeRef voidt;
 183         LLVMTypeRef i1;
 184         LLVMTypeRef i8;
 185         LLVMTypeRef i32;
 186         LLVMTypeRef i64;
 187         LLVMTypeRef i128;
 188         LLVMTypeRef f32;
 189         LLVMTypeRef v2i32;
 190         LLVMTypeRef v4i32;
 191         LLVMTypeRef v4f32;
 192         LLVMTypeRef v8i32;
 193
 194         LLVMValueRef i32_0;
 195         LLVMValueRef i32_1;
 196         LLVMValueRef i1false;
 197         LLVMValueRef i1true;
 198 };
 199
 200 static inline struct si_shader_context *
 201 si_shader_context_from_abi(struct ac_shader_abi *abi)
 202 {
 203         struct si_shader_context *ctx = NULL;
 204         return container_of(abi, ctx, abi);
 205 }
 206
 207 void si_llvm_context_init(struct si_shader_context *ctx,
 208                           struct si_screen *sscreen,
 209                           struct ac_llvm_compiler *compiler,
 210                           unsigned wave_size);
 211 void si_llvm_context_set_ir(struct si_shader_context *ctx,
 212                             struct si_shader *shader);
 213
 214 void si_llvm_create_func(struct si_shader_context *ctx, const char *name,
 215                          LLVMTypeRef *return_types, unsigned num_return_elems,
 216                          unsigned max_workgroup_size);
 217
 218 void si_llvm_dispose(struct si_shader_context *ctx);
 219
 220 void si_llvm_optimize_module(struct si_shader_context *ctx);
 221
 222 LLVMValueRef si_nir_load_input_tes(struct ac_shader_abi *abi,
 223                                    LLVMTypeRef type,
 224                                    LLVMValueRef vertex_index,
 225                                    LLVMValueRef param_index,
 226                                    unsigned const_index,
 227                                    unsigned location,
 228                                    unsigned driver_location,
 229                                    unsigned component,
 230                                    unsigned num_components,
 231                                    bool is_patch,
 232                                    bool is_compact,
 233                                    bool load_input);
 234 bool si_is_merged_shader(struct si_shader_context *ctx);
 235 LLVMValueRef si_get_sample_id(struct si_shader_context *ctx);
 236 LLVMValueRef si_buffer_load_const(struct si_shader_context *ctx,
 237                                   LLVMValueRef resource, LLVMValueRef offset);
 238 void si_llvm_build_ret(struct si_shader_context *ctx, LLVMValueRef ret);
 239 LLVMValueRef si_prolog_get_rw_buffers(struct si_shader_context *ctx);
 240 LLVMValueRef si_build_gather_64bit(struct si_shader_context *ctx,
 241                                    LLVMTypeRef type, LLVMValueRef val1,
 242                                    LLVMValueRef val2);
 243 void si_llvm_emit_barrier(struct si_shader_context *ctx);
 244 void si_llvm_declare_esgs_ring(struct si_shader_context *ctx);
 245 void si_declare_compute_memory(struct si_shader_context *ctx);
 246 LLVMValueRef si_get_primitive_id(struct si_shader_context *ctx,
 247                                  unsigned swizzle);
 248 void si_llvm_export_vs(struct si_shader_context *ctx,
 249                        struct si_shader_output_values *outputs,
 250                        unsigned noutput);
 251 void si_emit_streamout_output(struct si_shader_context *ctx,
 252                               LLVMValueRef const *so_buffers,
 253                               LLVMValueRef const *so_write_offsets,
 254                               struct pipe_stream_output *stream_out,
 255                               struct si_shader_output_values *shader_out);
 256 void si_add_arg_checked(struct ac_shader_args *args,
 257                         enum ac_arg_regfile file,
 258                         unsigned registers, enum ac_arg_type type,
 259                         struct ac_arg *arg,
 260                         unsigned idx);
 261
 262 void si_llvm_load_input_vs(
 263         struct si_shader_context *ctx,
 264         unsigned input_index,
 265         LLVMValueRef out[4]);
 266
 267 bool si_nir_build_llvm(struct si_shader_context *ctx, struct nir_shader *nir);
 268
 269 LLVMValueRef si_unpack_param(struct si_shader_context *ctx,
 270                              struct ac_arg param, unsigned rshift,
 271                              unsigned bitwidth);
 272 void si_build_wrapper_function(struct si_shader_context *ctx, LLVMValueRef *parts,
 273                                unsigned num_parts, unsigned main_part,
 274                                unsigned next_shader_first_part);
 275 bool si_need_ps_prolog(const union si_shader_part_key *key);
 276 void si_get_ps_prolog_key(struct si_shader *shader,
 277                           union si_shader_part_key *key,
 278                           bool separate_prolog);
 279 void si_get_ps_epilog_key(struct si_shader *shader,
 280                           union si_shader_part_key *key);
 281 LLVMValueRef si_insert_input_ret(struct si_shader_context *ctx, LLVMValueRef ret,
 282                                  struct ac_arg param, unsigned return_index);
 283 LLVMValueRef si_insert_input_ret_float(struct si_shader_context *ctx, LLVMValueRef ret,
 284                                        struct ac_arg param, unsigned return_index);
 285 LLVMValueRef si_insert_input_ptr(struct si_shader_context *ctx, LLVMValueRef ret,
 286                                  struct ac_arg param, unsigned return_index);
 287 int si_compile_llvm(struct si_screen *sscreen,
 288                     struct si_shader_binary *binary,
 289                     struct ac_shader_config *conf,
 290                     struct ac_llvm_compiler *compiler,
 291                     struct ac_llvm_context *ac,
 292                     struct pipe_debug_callback *debug,
 293                     enum pipe_shader_type shader_type,
 294                     const char *name,
 295                     bool less_optimized);
 296 void si_fix_resource_usage(struct si_screen *sscreen, struct si_shader *shader);
 297 void si_llvm_emit_streamout(struct si_shader_context *ctx,
 298                             struct si_shader_output_values *outputs,
 299                             unsigned noutput, unsigned stream);
 300 void si_create_function(struct si_shader_context *ctx);
 301
 302 bool gfx10_ngg_export_prim_early(struct si_shader *shader);
 303 void gfx10_ngg_build_sendmsg_gs_alloc_req(struct si_shader_context *ctx);
 304 void gfx10_ngg_build_export_prim(struct si_shader_context *ctx,
 305                                  LLVMValueRef user_edgeflags[3]);
 306 void gfx10_emit_ngg_epilogue(struct ac_shader_abi *abi,
 307                              unsigned max_outputs,
 308                              LLVMValueRef *addrs);
 309 void gfx10_ngg_gs_emit_vertex(struct si_shader_context *ctx,
 310                               unsigned stream,
 311                               LLVMValueRef *addrs);
 312 void gfx10_ngg_gs_emit_prologue(struct si_shader_context *ctx);
 313 void gfx10_ngg_gs_emit_epilogue(struct si_shader_context *ctx);
 314 void gfx10_ngg_calculate_subgroup_info(struct si_shader *shader);
 315
 316 /* si_shader_llvm_gs.c */
 317 LLVMValueRef si_is_es_thread(struct si_shader_context *ctx);
 318 LLVMValueRef si_is_gs_thread(struct si_shader_context *ctx);
 319 void si_llvm_emit_es_epilogue(struct ac_shader_abi *abi, unsigned max_outputs,
 320                               LLVMValueRef *addrs);
 321 void si_preload_esgs_ring(struct si_shader_context *ctx);
 322 void si_preload_gs_rings(struct si_shader_context *ctx);
 323 void si_llvm_build_gs_prolog(struct si_shader_context *ctx,
 324                              union si_shader_part_key *key);
 325 void si_llvm_init_gs_callbacks(struct si_shader_context *ctx);
 326
 327 /* si_shader_llvm_tess.c */
 328 void si_llvm_preload_tes_rings(struct si_shader_context *ctx);
 329 void si_llvm_emit_ls_epilogue(struct ac_shader_abi *abi, unsigned max_outputs,
 330                               LLVMValueRef *addrs);
 331 void si_llvm_build_tcs_epilog(struct si_shader_context *ctx,
 332                               union si_shader_part_key *key);
 333 void si_llvm_init_tcs_callbacks(struct si_shader_context *ctx);
 334 void si_llvm_init_tes_callbacks(struct si_shader_context *ctx);
 335
 336 /* si_shader_llvm_ps.c */
 337 void si_llvm_build_ps_prolog(struct si_shader_context *ctx,
 338                              union si_shader_part_key *key);
 339 void si_llvm_build_ps_epilog(struct si_shader_context *ctx,
 340                              union si_shader_part_key *key);
 341 void si_llvm_build_monolithic_ps(struct si_shader_context *ctx,
 342                                  struct si_shader *shader);
 343 void si_llvm_init_ps_callbacks(struct si_shader_context *ctx);
 344
 345 /* si_shader_llvm_resources.c */
 346 void si_llvm_init_resource_callbacks(struct si_shader_context *ctx);
 347
 348 #endif