src/amd/common/ac_shader_abi.h

   1 /*
   2  * Copyright 2017 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 AC_SHADER_ABI_H
  25 #define AC_SHADER_ABI_H
  26
  27 #include <llvm-c/Core.h>
  28
  29 /* Document the shader ABI during compilation. This is what allows radeonsi and
  30  * radv to share a compiler backend.
  31  */
  32 struct ac_shader_abi {
  33         enum chip_class chip_class;
  34
  35         LLVMValueRef base_vertex;
  36         LLVMValueRef start_instance;
  37         LLVMValueRef draw_id;
  38         LLVMValueRef vertex_id;
  39         LLVMValueRef instance_id;
  40
  41         /* For VS and PS: pre-loaded shader inputs.
  42          *
  43          * Currently only used for NIR shaders; indexed by variables'
  44          * driver_location.
  45          */
  46         LLVMValueRef *inputs;
  47
  48         void (*emit_outputs)(struct ac_shader_abi *abi,
  49                              unsigned max_outputs,
  50                              LLVMValueRef *addrs);
  51
  52         LLVMValueRef (*load_ubo)(struct ac_shader_abi *abi, LLVMValueRef index);
  53 };
  54
  55 #endif /* AC_SHADER_ABI_H */