IABSD.fr/xenocara/lib/mesa/src/intel/compiler/elk/elk_isa_info.h

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• Author : jsg
  Date : 2025-06-05 11:23:11
  Hash : 67d6f117
  Message : Import Mesa 25.0.7

• lib/mesa/src/intel/compiler/elk/elk_isa_info.h

• /*
   * Copyright © 2022 Intel Corporation
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * on the rights to use, copy, modify, merge, publish, distribute, sub
   * license, and/or sell copies of the Software, and to permit persons to whom
   * the Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
   * USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  #pragma once
  
  #include "dev/intel_device_info.h"
  #include "elk_eu_opcodes.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  struct elk_opcode_desc;
  
  struct elk_isa_info {
     const struct intel_device_info *devinfo;
  
     /* A mapping from enum elk_opcode to the corresponding opcode_desc */
     const struct elk_opcode_desc *ir_to_descs[NUM_ELK_OPCODES];
  
     /** A mapping from a HW opcode encoding to the corresponding opcode_desc */
     const struct elk_opcode_desc *hw_to_descs[128];
  };
  
  void elk_init_isa_info(struct elk_isa_info *isa,
                         const struct intel_device_info *devinfo);
  
  struct elk_opcode_desc {
     unsigned ir;
     unsigned hw;
     const char *name;
     int nsrc;
     int ndst;
     int gfx_vers;
  };
  
  const struct elk_opcode_desc *
  elk_opcode_desc(const struct elk_isa_info *isa, enum elk_opcode opcode);
  
  const struct elk_opcode_desc *
  elk_opcode_desc_from_hw(const struct elk_isa_info *isa, unsigned hw);
  
  static inline unsigned
  elk_opcode_encode(const struct elk_isa_info *isa, enum elk_opcode opcode)
  {
     return elk_opcode_desc(isa, opcode)->hw;
  }
  
  static inline enum elk_opcode
  elk_opcode_decode(const struct elk_isa_info *isa, unsigned hw)
  {
     const struct elk_opcode_desc *desc = elk_opcode_desc_from_hw(isa, hw);
     return desc ? (enum elk_opcode)desc->ir : ELK_OPCODE_ILLEGAL;
  }
  
  static inline bool
  elk_is_3src(const struct elk_isa_info *isa, enum elk_opcode opcode)
  {
     const struct elk_opcode_desc *desc = elk_opcode_desc(isa, opcode);
     return desc && desc->nsrc == 3;
  }
  
  #ifdef __cplusplus
  }
  #endif