src/intel/compiler/brw_reg_type.h

   1 /*
   2  * Copyright © 2017 Intel 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  * 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 BRW_REG_TYPE_H
  25 #define BRW_REG_TYPE_H
  26
  27 #include <stdbool.h>
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 #ifdef HAVE_FUNC_ATTRIBUTE_PURE
  34 #define ATTRIBUTE_PURE __attribute__((__pure__))
  35 #else
  36 #define ATTRIBUTE_PURE
  37 #endif
  38
  39 enum brw_reg_file;
  40 struct gen_device_info;
  41
  42 /*
  43  * The ordering has been chosen so that no enum value is the same as a
  44  * compatible hardware encoding.
  45  */
  46 enum PACKED brw_reg_type {
  47    /** Floating-point types: @{ */
  48    BRW_REGISTER_TYPE_DF,
  49    BRW_REGISTER_TYPE_F,
  50    BRW_REGISTER_TYPE_HF,
  51    BRW_REGISTER_TYPE_VF,
  52    /** @} */
  53
  54    /** Integer types: @{ */
  55    BRW_REGISTER_TYPE_Q,
  56    BRW_REGISTER_TYPE_UQ,
  57    BRW_REGISTER_TYPE_D,
  58    BRW_REGISTER_TYPE_UD,
  59    BRW_REGISTER_TYPE_W,
  60    BRW_REGISTER_TYPE_UW,
  61    BRW_REGISTER_TYPE_B,
  62    BRW_REGISTER_TYPE_UB,
  63    BRW_REGISTER_TYPE_V,
  64    BRW_REGISTER_TYPE_UV,
  65    /** @} */
  66
  67    BRW_REGISTER_TYPE_LAST = BRW_REGISTER_TYPE_UV
  68 };
  69
  70 static inline bool
  71 brw_reg_type_is_floating_point(enum brw_reg_type type)
  72 {
  73    switch (type) {
  74    case BRW_REGISTER_TYPE_DF:
  75    case BRW_REGISTER_TYPE_F:
  76    case BRW_REGISTER_TYPE_HF:
  77       return true;
  78    default:
  79       return false;
  80    }
  81 }
  82
  83 unsigned
  84 brw_reg_type_to_hw_type(const struct gen_device_info *devinfo,
  85                         enum brw_reg_file file, enum brw_reg_type type);
  86
  87 enum brw_reg_type ATTRIBUTE_PURE
  88 brw_hw_type_to_reg_type(const struct gen_device_info *devinfo,
  89                         enum brw_reg_file file, unsigned hw_type);
  90
  91 unsigned
  92 brw_reg_type_to_hw_3src_type(const struct gen_device_info *devinfo,
  93                              enum brw_reg_type type);
  94
  95 enum brw_reg_type
  96 brw_hw_3src_type_to_reg_type(const struct gen_device_info *devinfo,
  97                              unsigned hw_type);
  98
  99 unsigned
 100 brw_reg_type_to_size(enum brw_reg_type type);
 101
 102 const char *
 103 brw_reg_type_to_letters(enum brw_reg_type type);
 104
 105 #ifdef __cplusplus
 106 }
 107 #endif
 108
 109 #endif