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 "gallivm/lp_bld_flow.h"
  30 #include "gallivm/lp_bld_init.h"
  31 #include "gallivm/lp_bld_tgsi.h"
  32 #include "tgsi/tgsi_parse.h"
  33 #include "ac_shader_abi.h"
  34 #include "ac_llvm_util.h"
  35 #include "ac_llvm_build.h"
  36
  37 #include <llvm-c/Core.h>
  38 #include <llvm-c/TargetMachine.h>
  39
  40 struct pipe_debug_callback;
  41 struct ac_shader_binary;
  42
  43 #define RADEON_LLVM_MAX_INPUT_SLOTS 32
  44 #define RADEON_LLVM_MAX_INPUTS 32 * 4
  45 #define RADEON_LLVM_MAX_OUTPUTS 32 * 4
  46
  47 #define RADEON_LLVM_MAX_SYSTEM_VALUES 11
  48 #define RADEON_LLVM_MAX_ADDRS 16
  49
  50 struct si_shader_context {
  51         struct lp_build_tgsi_context bld_base;
  52         struct gallivm_state gallivm;
  53         struct ac_llvm_context ac;
  54         struct si_shader *shader;
  55         struct si_screen *screen;
  56
  57         unsigned type; /* PIPE_SHADER_* specifies the type of shader. */
  58
  59         /* For clamping the non-constant index in resource indexing: */
  60         unsigned num_const_buffers;
  61         unsigned num_shader_buffers;
  62         unsigned num_images;
  63         unsigned num_samplers;
  64
  65         /* Whether the prolog will be compiled separately. */
  66         bool separate_prolog;
  67
  68         struct ac_shader_abi abi;
  69
  70         /** This function is responsible for initilizing the inputs array and will be
  71           * called once for each input declared in the TGSI shader.
  72           */
  73         void (*load_input)(struct si_shader_context *,
  74                            unsigned input_index,
  75                            const struct tgsi_full_declaration *decl,
  76                            LLVMValueRef out[4]);
  77
  78         /** This array contains the input values for the shader.  Typically these
  79           * values will be in the form of a target intrinsic that will inform the
  80           * backend how to load the actual inputs to the shader.
  81           */
  82         struct tgsi_full_declaration input_decls[RADEON_LLVM_MAX_INPUT_SLOTS];
  83         LLVMValueRef inputs[RADEON_LLVM_MAX_INPUTS];
  84         LLVMValueRef outputs[RADEON_LLVM_MAX_OUTPUTS][TGSI_NUM_CHANNELS];
  85         LLVMValueRef addrs[RADEON_LLVM_MAX_ADDRS][TGSI_NUM_CHANNELS];
  86
  87         /** This pointer is used to contain the temporary values.
  88           * The amount of temporary used in tgsi can't be bound to a max value and
  89           * thus we must allocate this array at runtime.
  90           */
  91         LLVMValueRef *temps;
  92         unsigned temps_count;
  93         LLVMValueRef system_values[RADEON_LLVM_MAX_SYSTEM_VALUES];
  94
  95         LLVMValueRef *imms;
  96         unsigned imms_num;
  97
  98         struct lp_build_if_state merged_wrap_if_state;
  99
 100         struct tgsi_array_info *temp_arrays;
 101         LLVMValueRef *temp_array_allocas;
 102
 103         LLVMValueRef undef_alloca;
 104
 105         LLVMValueRef main_fn;
 106         LLVMTypeRef return_type;
 107
 108         /* Parameter indices for LLVMGetParam. */
 109         int param_rw_buffers;
 110         int param_const_and_shader_buffers;
 111         int param_samplers_and_images;
 112         int param_bindless_samplers_and_images;
 113         /* Common inputs for merged shaders. */
 114         int param_merged_wave_info;
 115         int param_merged_scratch_offset;
 116         /* API VS */
 117         int param_vertex_buffers;
 118         int param_rel_auto_id;
 119         int param_vs_prim_id;
 120         int param_vertex_index0;
 121         /* VS states and layout of LS outputs / TCS inputs at the end
 122          *   [0] = clamp vertex color
 123          *   [1] = indexed
 124          *   [8:20] = stride between patches in DW = num_inputs * num_vertices * 4
 125          *            max = 32*32*4 + 32*4
 126          *   [24:31] = stride between vertices in DW = num_inputs * 4
 127          *             max = 32*4
 128          */
 129         int param_vs_state_bits;
 130         int param_vs_blit_inputs;
 131         /* HW VS */
 132         int param_streamout_config;
 133         int param_streamout_write_index;
 134         int param_streamout_offset[4];
 135
 136         /* API TCS & TES */
 137         /* Layout of TCS outputs in the offchip buffer
 138          * # 6 bits
 139          *   [0:5] = the number of patches per threadgroup, max = NUM_PATCHES (40)
 140          * # 6 bits
 141          *   [6:11] = the number of output vertices per patch, max = 32
 142          * # 20 bits
 143          *   [12:31] = the offset of per patch attributes in the buffer in bytes.
 144          *             max = NUM_PATCHES*32*32*16
 145          */
 146         int param_tcs_offchip_layout;
 147
 148         /* API TCS */
 149         /* Offsets where TCS outputs and TCS patch outputs live in LDS:
 150          *   [0:15] = TCS output patch0 offset / 16, max = NUM_PATCHES * 32 * 32
 151          *   [16:31] = TCS output patch0 offset for per-patch / 16
 152          *             max = (NUM_PATCHES + 1) * 32*32
 153          */
 154         int param_tcs_out_lds_offsets;
 155         /* Layout of TCS outputs / TES inputs:
 156          *   [0:12] = stride between output patches in DW, num_outputs * num_vertices * 4
 157          *            max = 32*32*4 + 32*4
 158          *   [13:18] = gl_PatchVerticesIn, max = 32
 159          *   [19:31] = high 13 bits of the 32-bit address of tessellation ring buffers
 160          */
 161         int param_tcs_out_lds_layout;
 162         int param_tcs_offchip_offset;
 163         int param_tcs_factor_offset;
 164
 165         /* API TES */
 166         int param_tes_offchip_addr;
 167         int param_tes_u;
 168         int param_tes_v;
 169         int param_tes_rel_patch_id;
 170         /* HW ES */
 171         int param_es2gs_offset;
 172         /* API GS */
 173         int param_gs2vs_offset;
 174         int param_gs_wave_id; /* GFX6 */
 175         LLVMValueRef gs_vtx_offset[6]; /* in dwords (GFX6) */
 176         int param_gs_vtx01_offset; /* in dwords (GFX9) */
 177         int param_gs_vtx23_offset; /* in dwords (GFX9) */
 178         int param_gs_vtx45_offset; /* in dwords (GFX9) */
 179         /* CS */
 180         int param_block_size;
 181
 182         struct si_compiler *compiler;
 183
 184         /* Preloaded descriptors. */
 185         LLVMValueRef esgs_ring;
 186         LLVMValueRef gsvs_ring[4];
 187         LLVMValueRef tess_offchip_ring;
 188
 189         LLVMValueRef invoc0_tess_factors[6]; /* outer[4], inner[2] */
 190         LLVMValueRef gs_next_vertex[4];
 191         LLVMValueRef postponed_kill;
 192         LLVMValueRef return_value;
 193
 194         LLVMTypeRef voidt;
 195         LLVMTypeRef i1;
 196         LLVMTypeRef i8;
 197         LLVMTypeRef i32;
 198         LLVMTypeRef i64;
 199         LLVMTypeRef i128;
 200         LLVMTypeRef f32;
 201         LLVMTypeRef v2i32;
 202         LLVMTypeRef v4i32;
 203         LLVMTypeRef v4f32;
 204         LLVMTypeRef v8i32;
 205
 206         LLVMValueRef i32_0;
 207         LLVMValueRef i32_1;
 208 };
 209
 210 static inline struct si_shader_context *
 211 si_shader_context(struct lp_build_tgsi_context *bld_base)
 212 {
 213         return (struct si_shader_context*)bld_base;
 214 }
 215
 216 static inline struct si_shader_context *
 217 si_shader_context_from_abi(struct ac_shader_abi *abi)
 218 {
 219         struct si_shader_context *ctx = NULL;
 220         return container_of(abi, ctx, abi);
 221 }
 222
 223 unsigned si_llvm_compile(LLVMModuleRef M, struct ac_shader_binary *binary,
 224                          struct si_compiler *compiler,
 225                          struct pipe_debug_callback *debug);
 226
 227 LLVMTypeRef tgsi2llvmtype(struct lp_build_tgsi_context *bld_base,
 228                           enum tgsi_opcode_type type);
 229
 230 LLVMValueRef bitcast(struct lp_build_tgsi_context *bld_base,
 231                      enum tgsi_opcode_type type, LLVMValueRef value);
 232
 233 LLVMValueRef si_llvm_bound_index(struct si_shader_context *ctx,
 234                                  LLVMValueRef index,
 235                                  unsigned num);
 236
 237 void si_llvm_context_init(struct si_shader_context *ctx,
 238                           struct si_screen *sscreen,
 239                           struct si_compiler *compiler);
 240 void si_llvm_context_set_tgsi(struct si_shader_context *ctx,
 241                               struct si_shader *shader);
 242
 243 void si_llvm_create_func(struct si_shader_context *ctx,
 244                          const char *name,
 245                          LLVMTypeRef *return_types, unsigned num_return_elems,
 246                          LLVMTypeRef *ParamTypes, unsigned ParamCount);
 247
 248 void si_llvm_dispose(struct si_shader_context *ctx);
 249
 250 void si_llvm_optimize_module(struct si_shader_context *ctx);
 251
 252 LLVMValueRef si_llvm_emit_fetch_64bit(struct lp_build_tgsi_context *bld_base,
 253                                       LLVMTypeRef type,
 254                                       LLVMValueRef ptr,
 255                                       LLVMValueRef ptr2);
 256
 257 LLVMValueRef si_llvm_emit_fetch(struct lp_build_tgsi_context *bld_base,
 258                                 const struct tgsi_full_src_register *reg,
 259                                 enum tgsi_opcode_type type,
 260                                 unsigned swizzle);
 261
 262 void si_llvm_emit_kill(struct ac_shader_abi *abi, LLVMValueRef visible);
 263
 264 LLVMValueRef si_nir_load_input_tes(struct ac_shader_abi *abi,
 265                                    LLVMTypeRef type,
 266                                    LLVMValueRef vertex_index,
 267                                    LLVMValueRef param_index,
 268                                    unsigned const_index,
 269                                    unsigned location,
 270                                    unsigned driver_location,
 271                                    unsigned component,
 272                                    unsigned num_components,
 273                                    bool is_patch,
 274                                    bool is_compact,
 275                                    bool load_input);
 276
 277 LLVMValueRef si_llvm_load_input_gs(struct ac_shader_abi *abi,
 278                                    unsigned input_index,
 279                                    unsigned vtx_offset_param,
 280                                    LLVMTypeRef type,
 281                                    unsigned swizzle);
 282
 283 LLVMValueRef si_nir_lookup_interp_param(struct ac_shader_abi *abi,
 284                                         enum glsl_interp_mode interp,
 285                                         unsigned location);
 286
 287 void si_llvm_emit_store(struct lp_build_tgsi_context *bld_base,
 288                         const struct tgsi_full_instruction *inst,
 289                         const struct tgsi_opcode_info *info,
 290                         unsigned index,
 291                         LLVMValueRef dst[4]);
 292
 293 /* Combine these with & instead of |. */
 294 #define NOOP_WAITCNT 0xf7f
 295 #define LGKM_CNT 0x07f
 296 #define VM_CNT 0xf70
 297
 298 LLVMValueRef si_get_indirect_index(struct si_shader_context *ctx,
 299                                    const struct tgsi_ind_register *ind,
 300                                    unsigned addr_mul, int rel_index);
 301 LLVMValueRef si_get_bounded_indirect_index(struct si_shader_context *ctx,
 302                                            const struct tgsi_ind_register *ind,
 303                                            int rel_index, unsigned num);
 304 LLVMValueRef si_get_sample_id(struct si_shader_context *ctx);
 305
 306 void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base);
 307 void si_shader_context_init_mem(struct si_shader_context *ctx);
 308
 309 LLVMValueRef si_load_sampler_desc(struct si_shader_context *ctx,
 310                                   LLVMValueRef list, LLVMValueRef index,
 311                                   enum ac_descriptor_type type);
 312 LLVMValueRef si_load_image_desc(struct si_shader_context *ctx,
 313                                 LLVMValueRef list, LLVMValueRef index,
 314                                 enum ac_descriptor_type desc_type, bool dcc_off);
 315
 316 void si_load_system_value(struct si_shader_context *ctx,
 317                           unsigned index,
 318                           const struct tgsi_full_declaration *decl);
 319 void si_declare_compute_memory(struct si_shader_context *ctx);
 320 void si_tgsi_declare_compute_memory(struct si_shader_context *ctx,
 321                                     const struct tgsi_full_declaration *decl);
 322
 323 void si_llvm_load_input_vs(
 324         struct si_shader_context *ctx,
 325         unsigned input_index,
 326         LLVMValueRef out[4]);
 327 void si_llvm_load_input_fs(
 328         struct si_shader_context *ctx,
 329         unsigned input_index,
 330         LLVMValueRef out[4]);
 331
 332 bool si_nir_build_llvm(struct si_shader_context *ctx, struct nir_shader *nir);
 333
 334 LLVMValueRef si_unpack_param(struct si_shader_context *ctx,
 335                              unsigned param, unsigned rshift,
 336                              unsigned bitwidth);
 337
 338 #endif