src/amd/common/ac_nir_to_llvm.h

   1 /*
   2  * Copyright © 2016 Bas Nieuwenhuizen
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #ifndef AC_NIR_TO_LLVM_H
  25 #define AC_NIR_TO_LLVM_H
  26
  27 #include <stdbool.h>
  28 #include "llvm-c/Core.h"
  29 #include "llvm-c/TargetMachine.h"
  30 #include "amd_family.h"
  31 #include "../vulkan/radv_descriptor_set.h"
  32
  33 #include "shader_enums.h"
  34 struct ac_shader_binary;
  35 struct ac_shader_config;
  36 struct nir_shader;
  37 struct radv_pipeline_layout;
  38
  39
  40 struct ac_vs_variant_key {
  41         uint32_t instance_rate_inputs;
  42         uint32_t as_es:1;
  43         uint32_t as_ls:1;
  44 };
  45
  46 struct ac_tes_variant_key {
  47         uint32_t as_es:1;
  48 };
  49
  50 struct ac_tcs_variant_key {
  51         unsigned primitive_mode;
  52         unsigned input_vertices;
  53 };
  54
  55 struct ac_fs_variant_key {
  56         uint32_t col_format;
  57         uint32_t is_int8;
  58 };
  59
  60 union ac_shader_variant_key {
  61         struct ac_vs_variant_key vs;
  62         struct ac_fs_variant_key fs;
  63         struct ac_tes_variant_key tes;
  64         struct ac_tcs_variant_key tcs;
  65 };
  66
  67 struct ac_nir_compiler_options {
  68         struct radv_pipeline_layout *layout;
  69         union ac_shader_variant_key key;
  70         bool unsafe_math;
  71         bool supports_spill;
  72         enum radeon_family family;
  73         enum chip_class chip_class;
  74 };
  75
  76 struct ac_userdata_info {
  77         int8_t sgpr_idx;
  78         uint8_t num_sgprs;
  79         bool indirect;
  80         uint32_t indirect_offset;
  81 };
  82
  83 enum ac_ud_index {
  84         AC_UD_SCRATCH_RING_OFFSETS = 0,
  85         AC_UD_PUSH_CONSTANTS = 1,
  86         AC_UD_SHADER_START = 2,
  87         AC_UD_VS_VERTEX_BUFFERS = AC_UD_SHADER_START,
  88         AC_UD_VS_BASE_VERTEX_START_INSTANCE,
  89         AC_UD_VS_LS_TCS_IN_LAYOUT,
  90         AC_UD_VS_MAX_UD,
  91         AC_UD_PS_SAMPLE_POS_OFFSET = AC_UD_SHADER_START,
  92         AC_UD_PS_MAX_UD,
  93         AC_UD_CS_GRID_SIZE = AC_UD_SHADER_START,
  94         AC_UD_CS_MAX_UD,
  95         AC_UD_GS_VS_RING_STRIDE_ENTRIES = AC_UD_SHADER_START,
  96         AC_UD_GS_MAX_UD,
  97         AC_UD_TCS_OFFCHIP_LAYOUT = AC_UD_SHADER_START,
  98         AC_UD_TCS_MAX_UD,
  99         AC_UD_TES_OFFCHIP_LAYOUT = AC_UD_SHADER_START,
 100         AC_UD_TES_MAX_UD,
 101         AC_UD_MAX_UD = AC_UD_VS_MAX_UD,
 102 };
 103
 104 /* descriptor index into scratch ring offsets */
 105 #define RING_SCRATCH 0
 106 #define RING_ESGS_VS 1
 107 #define RING_ESGS_GS 2
 108 #define RING_GSVS_VS 3
 109 #define RING_GSVS_GS 4
 110 #define RING_HS_TESS_FACTOR 5
 111 #define RING_HS_TESS_OFFCHIP 6
 112 #define RING_PS_SAMPLE_POSITIONS 7
 113
 114 // Match MAX_SETS from radv_descriptor_set.h
 115 #define AC_UD_MAX_SETS MAX_SETS
 116
 117 struct ac_userdata_locations {
 118         struct ac_userdata_info descriptor_sets[AC_UD_MAX_SETS];
 119         struct ac_userdata_info shader_data[AC_UD_MAX_UD];
 120 };
 121
 122 struct ac_vs_output_info {
 123         uint8_t clip_dist_mask;
 124         uint8_t cull_dist_mask;
 125         bool writes_pointsize;
 126         bool writes_layer;
 127         bool writes_viewport_index;
 128         uint32_t prim_id_output;
 129         uint32_t layer_output;
 130         uint32_t export_mask;
 131         unsigned param_exports;
 132         unsigned pos_exports;
 133 };
 134
 135 struct ac_es_output_info {
 136         uint32_t esgs_itemsize;
 137 };
 138
 139 struct ac_shader_variant_info {
 140         struct ac_userdata_locations user_sgprs_locs;
 141         unsigned num_user_sgprs;
 142         unsigned num_input_sgprs;
 143         unsigned num_input_vgprs;
 144
 145         union {
 146                 struct {
 147                         struct ac_vs_output_info outinfo;
 148                         struct ac_es_output_info es_info;
 149                         unsigned vgpr_comp_cnt;
 150                         bool as_es;
 151                         bool as_ls;
 152                         uint64_t outputs_written;
 153                 } vs;
 154                 struct {
 155                         unsigned num_interp;
 156                         uint32_t input_mask;
 157                         unsigned output_mask;
 158                         uint32_t flat_shaded_mask;
 159                         bool has_pcoord;
 160                         bool can_discard;
 161                         bool writes_z;
 162                         bool writes_stencil;
 163                         bool writes_sample_mask;
 164                         bool early_fragment_test;
 165                         bool writes_memory;
 166                         bool force_persample;
 167                         bool prim_id_input;
 168                         bool layer_input;
 169                         bool uses_sample_positions;
 170                 } fs;
 171                 struct {
 172                         unsigned block_size[3];
 173                 } cs;
 174                 struct {
 175                         unsigned vertices_in;
 176                         unsigned vertices_out;
 177                         unsigned output_prim;
 178                         unsigned invocations;
 179                         unsigned gsvs_vertex_size;
 180                         unsigned max_gsvs_emit_size;
 181                 } gs;
 182                 struct {
 183                         bool uses_prim_id;
 184                         unsigned tcs_vertices_out;
 185                         /* Which outputs are actually written */
 186                         uint64_t outputs_written;
 187                         /* Which patch outputs are actually written */
 188                         uint32_t patch_outputs_written;
 189
 190                 } tcs;
 191                 struct {
 192                         struct ac_vs_output_info outinfo;
 193                         struct ac_es_output_info es_info;
 194                         bool as_es;
 195                         unsigned primitive_mode;
 196                         enum gl_tess_spacing spacing;
 197                         bool ccw;
 198                         bool point_mode;
 199                         bool uses_prim_id;
 200                 } tes;
 201         };
 202 };
 203
 204 void ac_compile_nir_shader(LLVMTargetMachineRef tm,
 205                            struct ac_shader_binary *binary,
 206                            struct ac_shader_config *config,
 207                            struct ac_shader_variant_info *shader_info,
 208                            struct nir_shader *nir,
 209                            const struct ac_nir_compiler_options *options,
 210                            bool dump_shader);
 211
 212 void ac_create_gs_copy_shader(LLVMTargetMachineRef tm,
 213                               struct nir_shader *geom_shader,
 214                               struct ac_shader_binary *binary,
 215                               struct ac_shader_config *config,
 216                               struct ac_shader_variant_info *shader_info,
 217                               const struct ac_nir_compiler_options *options,
 218                               bool dump_shader);
 219
 220 #endif /* AC_NIR_TO_LLVM_H */