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      1 /*
      2  * Copyright 2021 Collabora Ltd.
      3  * Copyright  2015 Intel Corporation
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      9  * and/or sell copies of the Software, and to permit persons to whom the
     10  * Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the next
     13  * paragraph) shall be included in all copies or substantial portions of the
     14  * Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     22  * IN THE SOFTWARE.
     23  */
     24 
     25 #ifndef GEN_MACROS_H
     26 #define GEN_MACROS_H
     27 
     28 /* Macros for handling per-gen compilation.
     29  *
     30  * The macro GENX() automatically suffixes whatever you give it with _vX
     31  *
     32  * You can do pseudo-runtime checks in your function such as
     33  *
     34  * if (PAN_ARCH == 4) {
     35  *    // Do something
     36  * }
     37  *
     38  * The contents of the if statement must be valid regardless of gen, but
     39  * the if will get compiled away on everything except first-generation Midgard.
     40  *
     41  * For places where you really do have a compile-time conflict, you can
     42  * use preprocessor logic:
     43  *
     44  * #if (PAN_ARCH == 75)
     45  *    // Do something
     46  * #endif
     47  *
     48  * However, it is strongly recommended that the former be used whenever
     49  * possible.
     50  */
     51 
     52 /* Returns the architecture version given a GPU ID, either from a table for
     53  * old-style Midgard versions or directly for new-style Bifrost/Valhall
     54  * versions */
     55 
     56 static inline unsigned
     57 pan_arch(unsigned gpu_id)
     58 {
     59         switch (gpu_id) {
     60         case 0x600:
     61         case 0x620:
     62         case 0x720:
     63                 return 4;
     64         case 0x750:
     65         case 0x820:
     66         case 0x830:
     67         case 0x860:
     68         case 0x880:
     69                 return 5;
     70         default:
     71                 return gpu_id >> 12;
     72         }
     73 }
     74 
     75 /* Base macro defined on the command line. */
     76 #ifndef PAN_ARCH
     77 #  include "genxml/common_pack.h"
     78 #else
     79 
     80 /* Suffixing macros */
     81 #if (PAN_ARCH == 4)
     82 #  define GENX(X) X##_v4
     83 #  include "genxml/v4_pack.h"
     84 #elif (PAN_ARCH == 5)
     85 #  define GENX(X) X##_v5
     86 #  include "genxml/v5_pack.h"
     87 #elif (PAN_ARCH == 6)
     88 #  define GENX(X) X##_v6
     89 #  include "genxml/v6_pack.h"
     90 #elif (PAN_ARCH == 7)
     91 #  define GENX(X) X##_v7
     92 #  include "genxml/v7_pack.h"
     93 #else
     94 #  error "Need to add suffixing macro for this architecture"
     95 #endif
     96 
     97 #endif /* PAN_ARCH */
     98 #endif /* GEN_MACROS_H */
     99