src/vulkan/anv_gen_macros.h

   1 /*
   2  * Copyright © 2015 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 #pragma once
  25
  26 /* Macros for handling per-gen compilation.
  27  *
  28  * The prefixing macros GENX() and genX() automatically prefix whatever you
  29  * give them by GENX_ or genX_  where X is the gen number.
  30  *
  31  * You can declare a function to be used on some range of gens like this:
  32  *
  33  * GENX_FUNC(GEN7, GEN75) void
  34  * genX(my_function_name)(args...)
  35  * {
  36  *    // Do stuff
  37  * }
  38  *
  39  * If the file is compiled for any set of gens containing gen7 and gen75,
  40  * the function will effectively only get compiled twice as
  41  * gen7_my_function_nmae and gen75_my_function_name.  The function has to
  42  * be compilable on all gens, but it will become a static inline that gets
  43  * discarded by the compiler on all gens not in range.
  44  *
  45  * You can do pseudo-runtime checks in your function such as
  46  *
  47  * if (ANV_GEN > 8 || ANV_IS_HASWELL) {
  48  *    // Do something
  49  * }
  50  *
  51  * The contents of the if statement must be valid regardless of gen, but
  52  * the if will get compiled away on everything except haswell.
  53  *
  54  * For places where you really do have a compile-time conflict, you can
  55  * use preprocessor logic:
  56  *
  57  * #if (ANV_GEN > 8 || ANV_IS_HASWELL)
  58  *    // Do something
  59  * #endif
  60  *
  61  * However, it is strongly recommended that the former be used whenever
  62  * possible.
  63  */
  64
  65 /* Base macro defined on the command line.  If we don't have this, we can't
  66  * do anything.
  67  */
  68 #ifdef ANV_GENx10
  69
  70 /* Gen checking macros */
  71 #define ANV_GEN ((ANV_GENx10) / 10)
  72 #define ANV_IS_HASWELL ((ANV_GENx10) == 75)
  73
  74 /* Prefixing macros */
  75 #if (ANV_GENx10 == 70)
  76 #  define GENX(X) GEN7_##X
  77 #  define genX(x) gen7_##x
  78 #elif (ANV_GENx10 == 75)
  79 #  define GENX(X) GEN75_##X
  80 #  define genX(x) gen75_##x
  81 #elif (ANV_GENx10 == 80)
  82 #  define GENX(X) GEN8_##X
  83 #  define genX(x) gen8_##x
  84 #elif (ANV_GENx10 == 90)
  85 #  define GENX(X) GEN9_##X
  86 #  define genX(x) gen9_##x
  87 #else
  88 #  error "Need to add prefixing macros for your gen"
  89 #endif
  90
  91 /* Macros for comparing gens */
  92 #if (ANV_GENx10 >= 70)
  93 #define __ANV_GEN_GE_GEN7(T, F) T
  94 #else
  95 #define __ANV_GEN_GE_GEN7(T, F) F
  96 #endif
  97
  98 #if (ANV_GENx10 <= 70)
  99 #define __ANV_GEN_LE_GEN7(T, F) T
 100 #else
 101 #define __ANV_GEN_LE_GEN7(T, F) F
 102 #endif
 103
 104 #if (ANV_GENx10 >= 75)
 105 #define __ANV_GEN_GE_GEN75(T, F) T
 106 #else
 107 #define __ANV_GEN_GE_GEN75(T, F) F
 108 #endif
 109
 110 #if (ANV_GENx10 <= 75)
 111 #define __ANV_GEN_LE_GEN75(T, F) T
 112 #else
 113 #define __ANV_GEN_LE_GEN75(T, F) F
 114 #endif
 115
 116 #if (ANV_GENx10 >= 80)
 117 #define __ANV_GEN_GE_GEN8(T, F) T
 118 #else
 119 #define __ANV_GEN_GE_GEN8(T, F) F
 120 #endif
 121
 122 #if (ANV_GENx10 <= 80)
 123 #define __ANV_GEN_LE_GEN8(T, F) T
 124 #else
 125 #define __ANV_GEN_LE_GEN8(T, F) F
 126 #endif
 127
 128 #if (ANV_GENx10 >= 90)
 129 #define __ANV_GEN_GE_GEN9(T, F) T
 130 #else
 131 #define __ANV_GEN_GE_GEN9(T, F) F
 132 #endif
 133
 134 #if (ANV_GENx10 <= 90)
 135 #define __ANV_GEN_LE_GEN9(T, F) T
 136 #else
 137 #define __ANV_GEN_LE_GEN9(T, F) F
 138 #endif
 139
 140 #define __ANV_GEN_IN_RANGE(start, end, T, F) \
 141    __ANV_GEN_GE_##start(__ANV_GEN_LE_##end(T, F), F)
 142
 143 /* Declares a function as static inlind if it's not in range */
 144 #define GENX_FUNC(start, end) __ANV_GEN_IN_RANGE(start, end, , static inline)
 145
 146 #endif /* ANV_GENx10 */