src/gallium/drivers/radeonsi/si_shader.h

   1 /*
   2  * Copyright 2012 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  * Authors:
  24  *      Tom Stellard <thomas.stellard@amd.com>
  25  *      Michel Dänzer <michel.daenzer@amd.com>
  26  *      Christian König <christian.koenig@amd.com>
  27  */
  28
  29 #ifndef SI_SHADER_H
  30 #define SI_SHADER_H
  31
  32 #include <llvm-c/Core.h> /* LLVMModuleRef */
  33
  34 #define SI_SGPR_CONST           0
  35 #define SI_SGPR_SAMPLER         2
  36 #define SI_SGPR_RESOURCE        4
  37 #define SI_SGPR_VERTEX_BUFFER   6  /* VS only */
  38 #define SI_SGPR_SO_BUFFER       8  /* VS only, stream-out */
  39 #define SI_SGPR_START_INSTANCE  10 /* VS only */
  40 #define SI_SGPR_ALPHA_REF       6  /* PS only */
  41
  42 #define SI_VS_NUM_USER_SGPR     11
  43 #define SI_GS_NUM_USER_SGPR     6
  44 #define SI_PS_NUM_USER_SGPR     7
  45
  46 /* LLVM function parameter indices */
  47 #define SI_PARAM_CONST          0
  48 #define SI_PARAM_SAMPLER        1
  49 #define SI_PARAM_RESOURCE       2
  50
  51 /* VS only parameters */
  52 #define SI_PARAM_VERTEX_BUFFER  3
  53 #define SI_PARAM_SO_BUFFER      4
  54 #define SI_PARAM_START_INSTANCE 5
  55 /* the other VS parameters are assigned dynamically */
  56
  57 /* ES only parameters */
  58 #define SI_PARAM_ES2GS_OFFSET   6
  59
  60 /* GS only parameters */
  61 #define SI_PARAM_GS2VS_OFFSET   3
  62 #define SI_PARAM_GS_WAVE_ID     4
  63 #define SI_PARAM_VTX0_OFFSET    5
  64 #define SI_PARAM_VTX1_OFFSET    6
  65 #define SI_PARAM_PRIMITIVE_ID   7
  66 #define SI_PARAM_VTX2_OFFSET    8
  67 #define SI_PARAM_VTX3_OFFSET    9
  68 #define SI_PARAM_VTX4_OFFSET    10
  69 #define SI_PARAM_VTX5_OFFSET    11
  70 #define SI_PARAM_GS_INSTANCE_ID 12
  71
  72 /* PS only parameters */
  73 #define SI_PARAM_ALPHA_REF              3
  74 #define SI_PARAM_PRIM_MASK              4
  75 #define SI_PARAM_PERSP_SAMPLE           5
  76 #define SI_PARAM_PERSP_CENTER           6
  77 #define SI_PARAM_PERSP_CENTROID         7
  78 #define SI_PARAM_PERSP_PULL_MODEL       8
  79 #define SI_PARAM_LINEAR_SAMPLE          9
  80 #define SI_PARAM_LINEAR_CENTER          10
  81 #define SI_PARAM_LINEAR_CENTROID        11
  82 #define SI_PARAM_LINE_STIPPLE_TEX       12
  83 #define SI_PARAM_POS_X_FLOAT            13
  84 #define SI_PARAM_POS_Y_FLOAT            14
  85 #define SI_PARAM_POS_Z_FLOAT            15
  86 #define SI_PARAM_POS_W_FLOAT            16
  87 #define SI_PARAM_FRONT_FACE             17
  88 #define SI_PARAM_ANCILLARY              18
  89 #define SI_PARAM_SAMPLE_COVERAGE        19
  90 #define SI_PARAM_POS_FIXED_PT           20
  91
  92 struct si_shader_input {
  93         unsigned                name;
  94         int                     sid;
  95         unsigned                param_offset;
  96         unsigned                index;
  97         unsigned                interpolate;
  98         bool                    centroid;
  99 };
 100
 101 struct si_shader_output {
 102         unsigned                name;
 103         int                     sid;
 104         unsigned                param_offset;
 105         unsigned                index;
 106         unsigned                usage;
 107 };
 108
 109 struct si_pipe_shader;
 110
 111 struct si_pipe_shader_selector {
 112         struct si_pipe_shader *current;
 113
 114         struct tgsi_token       *tokens;
 115         struct pipe_stream_output_info  so;
 116
 117         unsigned        num_shaders;
 118
 119         /* PIPE_SHADER_[VERTEX|FRAGMENT|...] */
 120         unsigned        type;
 121
 122         /* 1 when the shader contains
 123          * TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS, otherwise it's 0.
 124          * Used to determine whether we need to include nr_cbufs in the key */
 125         unsigned        fs_write_all;
 126 };
 127
 128 struct si_shader {
 129         unsigned                ninput;
 130         struct si_shader_input  input[40];
 131
 132         unsigned                noutput;
 133         struct si_shader_output output[40];
 134
 135         /* geometry shader properties */
 136         unsigned                gs_input_prim;
 137         unsigned                gs_output_prim;
 138         unsigned                gs_max_out_vertices;
 139
 140         unsigned                nparam;
 141         bool                    uses_kill;
 142         bool                    uses_instanceid;
 143         bool                    fs_write_all;
 144         bool                    vs_out_misc_write;
 145         bool                    vs_out_point_size;
 146         bool                    vs_out_edgeflag;
 147         bool                    vs_out_layer;
 148         unsigned                nr_pos_exports;
 149         unsigned                clip_dist_write;
 150 };
 151
 152 union si_shader_key {
 153         struct {
 154                 unsigned        export_16bpc:8;
 155                 unsigned        nr_cbufs:4;
 156                 unsigned        color_two_side:1;
 157                 unsigned        alpha_func:3;
 158                 unsigned        flatshade:1;
 159                 unsigned        alpha_to_one:1;
 160         } ps;
 161         struct {
 162                 unsigned        instance_divisors[PIPE_MAX_ATTRIBS];
 163                 unsigned        ucps_enabled:2;
 164                 unsigned        as_es:1;
 165         } vs;
 166 };
 167
 168 struct si_pipe_shader {
 169         struct si_pipe_shader_selector  *selector;
 170         struct si_pipe_shader           *next_variant;
 171         struct si_pipe_shader           *gs_copy_shader;
 172         struct si_shader                shader;
 173         struct si_pm4_state             *pm4;
 174         struct r600_resource            *bo;
 175         unsigned                        num_sgprs;
 176         unsigned                        num_vgprs;
 177         unsigned                        lds_size;
 178         unsigned                        spi_ps_input_ena;
 179         unsigned                        spi_shader_col_format;
 180         unsigned                        cb_shader_mask;
 181         bool                            cb0_is_integer;
 182         unsigned                        sprite_coord_enable;
 183         union si_shader_key             key;
 184 };
 185
 186 /* radeonsi_shader.c */
 187 int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader);
 188 int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader);
 189 int si_compile_llvm(struct si_context *sctx, struct si_pipe_shader *shader,
 190                                                         LLVMModuleRef mod);
 191 void si_pipe_shader_destroy(struct pipe_context *ctx, struct si_pipe_shader *shader);
 192
 193 #endif