src/amd/common/ac_shader_args.c

   1 /*
   2  * Copyright 2019 Valve Corporation
   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 #include "ac_shader_args.h"
  25
  26 #include "nir/nir_builder.h"
  27
  28 void ac_add_arg(struct ac_shader_args *info, enum ac_arg_regfile regfile, unsigned size,
  29                 enum ac_arg_type type, struct ac_arg *arg)
  30 {
  31    assert(info->arg_count < AC_MAX_ARGS);
  32
  33    unsigned offset;
  34    if (regfile == AC_ARG_SGPR) {
  35       offset = info->num_sgprs_used;
  36       info->num_sgprs_used += size;
  37    } else {
  38       assert(regfile == AC_ARG_VGPR);
  39       offset = info->num_vgprs_used;
  40       info->num_vgprs_used += size;
  41    }
  42
  43    info->args[info->arg_count].file = regfile;
  44    info->args[info->arg_count].offset = offset;
  45    info->args[info->arg_count].size = size;
  46    info->args[info->arg_count].type = type;
  47
  48    if (arg) {
  49       arg->arg_index = info->arg_count;
  50       arg->used = true;
  51    }
  52
  53    info->arg_count++;
  54 }