src/gallium/drivers/radeonsi/si_shader_internal.h

   1 /*
   2  * Copyright 2016 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #ifndef SI_SHADER_PRIVATE_H
  25 #define SI_SHADER_PRIVATE_H
  26
  27 #include "si_shader.h"
  28 #include "gallivm/lp_bld_init.h"
  29 #include "gallivm/lp_bld_tgsi.h"
  30 #include "tgsi/tgsi_parse.h"
  31 #include "ac_llvm_util.h"
  32
  33 #include <llvm-c/Core.h>
  34 #include <llvm-c/TargetMachine.h>
  35
  36 struct pipe_debug_callback;
  37 struct radeon_shader_binary;
  38
  39 #define RADEON_LLVM_MAX_INPUT_SLOTS 32
  40 #define RADEON_LLVM_MAX_INPUTS 32 * 4
  41 #define RADEON_LLVM_MAX_OUTPUTS 32 * 4
  42
  43 #define RADEON_LLVM_INITIAL_CF_DEPTH 4
  44
  45 #define RADEON_LLVM_MAX_SYSTEM_VALUES 4
  46
  47 struct si_llvm_flow;
  48
  49 struct si_shader_context {
  50         struct lp_build_tgsi_soa_context soa;
  51         struct gallivm_state gallivm;
  52         struct ac_llvm_context ac;
  53         struct si_shader *shader;
  54         struct si_screen *screen;
  55
  56         unsigned type; /* PIPE_SHADER_* specifies the type of shader. */
  57
  58         /* Whether the prolog will be compiled separately. */
  59         bool separate_prolog;
  60
  61         /** This function is responsible for initilizing the inputs array and will be
  62           * called once for each input declared in the TGSI shader.
  63           */
  64         void (*load_input)(struct si_shader_context *,
  65                            unsigned input_index,
  66                            const struct tgsi_full_declaration *decl,
  67                            LLVMValueRef out[4]);
  68
  69         void (*load_system_value)(struct si_shader_context *,
  70                                   unsigned index,
  71                                   const struct tgsi_full_declaration *decl);
  72
  73         void (*declare_memory_region)(struct si_shader_context *,
  74                                       const struct tgsi_full_declaration *decl);
  75
  76         /** This array contains the input values for the shader.  Typically these
  77           * values will be in the form of a target intrinsic that will inform the
  78           * backend how to load the actual inputs to the shader.
  79           */
  80         struct tgsi_full_declaration input_decls[RADEON_LLVM_MAX_INPUT_SLOTS];
  81         LLVMValueRef inputs[RADEON_LLVM_MAX_INPUTS];
  82         LLVMValueRef outputs[RADEON_LLVM_MAX_OUTPUTS][TGSI_NUM_CHANNELS];
  83
  84         /** This pointer is used to contain the temporary values.
  85           * The amount of temporary used in tgsi can't be bound to a max value and
  86           * thus we must allocate this array at runtime.
  87           */
  88         LLVMValueRef *temps;
  89         unsigned temps_count;
  90         LLVMValueRef system_values[RADEON_LLVM_MAX_SYSTEM_VALUES];
  91
  92         LLVMValueRef *imms;
  93         unsigned imms_num;
  94
  95         struct si_llvm_flow *flow;
  96         unsigned flow_depth;
  97         unsigned flow_depth_max;
  98
  99         struct tgsi_array_info *temp_arrays;
 100         LLVMValueRef *temp_array_allocas;
 101
 102         LLVMValueRef undef_alloca;
 103
 104         LLVMValueRef main_fn;
 105         LLVMTypeRef return_type;
 106
 107         int param_streamout_config;
 108         int param_streamout_write_index;
 109         int param_streamout_offset[4];
 110         int param_vertex_id;
 111         int param_rel_auto_id;
 112         int param_vs_prim_id;
 113         int param_instance_id;
 114         int param_vertex_index0;
 115         int param_tes_u;
 116         int param_tes_v;
 117         int param_tes_rel_patch_id;
 118         int param_tes_patch_id;
 119         int param_es2gs_offset;
 120         int param_oc_lds;
 121
 122         /* Sets a bit if the dynamic HS control word was 0x80000000. The bit is
 123          * 0x800000 for VS, 0x1 for ES.
 124          */
 125         int param_tess_offchip;
 126
 127         LLVMTargetMachineRef tm;
 128
 129         unsigned invariant_load_md_kind;
 130         unsigned range_md_kind;
 131         unsigned uniform_md_kind;
 132         unsigned fpmath_md_kind;
 133         LLVMValueRef fpmath_md_2p5_ulp;
 134         LLVMValueRef empty_md;
 135
 136         /* Preloaded descriptors. */
 137         LLVMValueRef esgs_ring;
 138         LLVMValueRef gsvs_ring[4];
 139
 140         LLVMValueRef lds;
 141         LLVMValueRef gs_next_vertex[4];
 142         LLVMValueRef return_value;
 143
 144         LLVMTypeRef voidt;
 145         LLVMTypeRef i1;
 146         LLVMTypeRef i8;
 147         LLVMTypeRef i32;
 148         LLVMTypeRef i64;
 149         LLVMTypeRef i128;
 150         LLVMTypeRef f32;
 151         LLVMTypeRef v16i8;
 152         LLVMTypeRef v2i32;
 153         LLVMTypeRef v4i32;
 154         LLVMTypeRef v4f32;
 155         LLVMTypeRef v8i32;
 156
 157         LLVMValueRef shared_memory;
 158 };
 159
 160 static inline struct si_shader_context *
 161 si_shader_context(struct lp_build_tgsi_context *bld_base)
 162 {
 163         return (struct si_shader_context*)bld_base;
 164 }
 165
 166 void si_llvm_add_attribute(LLVMValueRef F, const char *name, int value);
 167 void si_llvm_shader_type(LLVMValueRef F, unsigned type);
 168
 169 LLVMTargetRef si_llvm_get_amdgpu_target(const char *triple);
 170
 171 unsigned si_llvm_compile(LLVMModuleRef M, struct radeon_shader_binary *binary,
 172                          LLVMTargetMachineRef tm,
 173                          struct pipe_debug_callback *debug);
 174
 175 LLVMTypeRef tgsi2llvmtype(struct lp_build_tgsi_context *bld_base,
 176                           enum tgsi_opcode_type type);
 177
 178 LLVMValueRef bitcast(struct lp_build_tgsi_context *bld_base,
 179                      enum tgsi_opcode_type type, LLVMValueRef value);
 180
 181 LLVMValueRef si_llvm_bound_index(struct si_shader_context *ctx,
 182                                  LLVMValueRef index,
 183                                  unsigned num);
 184
 185 void si_llvm_context_init(struct si_shader_context *ctx,
 186                           struct si_screen *sscreen,
 187                           struct si_shader *shader,
 188                           LLVMTargetMachineRef tm,
 189                           const struct tgsi_shader_info *info,
 190                           const struct tgsi_token *tokens);
 191
 192 void si_llvm_create_func(struct si_shader_context *ctx,
 193                          const char *name,
 194                          LLVMTypeRef *return_types, unsigned num_return_elems,
 195                          LLVMTypeRef *ParamTypes, unsigned ParamCount);
 196
 197 void si_llvm_dispose(struct si_shader_context *ctx);
 198
 199 void si_llvm_finalize_module(struct si_shader_context *ctx,
 200                              bool run_verifier);
 201
 202 LLVMValueRef si_llvm_emit_fetch_64bit(struct lp_build_tgsi_context *bld_base,
 203                                       enum tgsi_opcode_type type,
 204                                       LLVMValueRef ptr,
 205                                       LLVMValueRef ptr2);
 206
 207 LLVMValueRef si_llvm_saturate(struct lp_build_tgsi_context *bld_base,
 208                               LLVMValueRef value);
 209
 210 LLVMValueRef si_llvm_emit_fetch(struct lp_build_tgsi_context *bld_base,
 211                                 const struct tgsi_full_src_register *reg,
 212                                 enum tgsi_opcode_type type,
 213                                 unsigned swizzle);
 214
 215 void si_llvm_emit_store(struct lp_build_tgsi_context *bld_base,
 216                         const struct tgsi_full_instruction *inst,
 217                         const struct tgsi_opcode_info *info,
 218                         LLVMValueRef dst[4]);
 219
 220 void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base);
 221
 222 #endif