src/intel/common/gen_decoder.h

   1 /*
   2  * Copyright © 2016 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 GEN_DECODER_H
  25 #define GEN_DECODER_H
  26
  27 #include <stdint.h>
  28 #include <stdbool.h>
  29
  30 #include "common/gen_device_info.h"
  31
  32 struct gen_spec;
  33 struct gen_group;
  34 struct gen_field;
  35
  36 static inline uint32_t gen_make_gen(uint32_t major, uint32_t minor)
  37 {
  38    return (major << 8) | minor;
  39 }
  40
  41 struct gen_group *gen_spec_find_struct(struct gen_spec *spec, const char *name);
  42 struct gen_spec *gen_spec_load(const struct gen_device_info *devinfo);
  43 struct gen_spec *gen_spec_load_from_path(const struct gen_device_info *devinfo,
  44                                          const char *path);
  45 uint32_t gen_spec_get_gen(struct gen_spec *spec);
  46 struct gen_group *gen_spec_find_instruction(struct gen_spec *spec, const uint32_t *p);
  47 struct gen_group *gen_spec_find_register(struct gen_spec *spec, uint32_t offset);
  48 int gen_group_get_length(struct gen_group *group, const uint32_t *p);
  49 const char *gen_group_get_name(struct gen_group *group);
  50 uint32_t gen_group_get_opcode(struct gen_group *group);
  51 struct gen_enum *gen_spec_find_enum(struct gen_spec *spec, const char *name);
  52
  53 struct gen_field_iterator {
  54    struct gen_group *group;
  55    const char *name;
  56    char value[128];
  57    struct gen_group *struct_desc;
  58    const uint32_t *p;
  59    int dword; /**< current field starts at &p[dword] */
  60    int i;
  61    struct gen_field *field;
  62    bool print_colors;
  63 };
  64
  65 struct gen_group {
  66    struct gen_spec *spec;
  67    char *name;
  68    int nfields;
  69    struct gen_field **fields;
  70    uint32_t group_offset, group_count;
  71
  72    uint32_t opcode_mask;
  73    uint32_t opcode;
  74
  75    /* Register specific */
  76    uint32_t register_offset;
  77 };
  78
  79 struct gen_value {
  80    char *name;
  81    uint64_t value;
  82 };
  83
  84 struct gen_enum {
  85    char *name;
  86    int nvalues;
  87    struct gen_value **values;
  88 };
  89
  90 struct gen_type {
  91    enum {
  92       GEN_TYPE_UNKNOWN,
  93       GEN_TYPE_INT,
  94       GEN_TYPE_UINT,
  95       GEN_TYPE_BOOL,
  96       GEN_TYPE_FLOAT,
  97       GEN_TYPE_ADDRESS,
  98       GEN_TYPE_OFFSET,
  99       GEN_TYPE_STRUCT,
 100       GEN_TYPE_UFIXED,
 101       GEN_TYPE_SFIXED,
 102       GEN_TYPE_MBO,
 103       GEN_TYPE_ENUM
 104    } kind;
 105
 106    /* Struct definition for  GEN_TYPE_STRUCT */
 107    union {
 108       struct gen_group *gen_struct;
 109       struct gen_enum *gen_enum;
 110       struct {
 111          /* Integer and fractional sizes for GEN_TYPE_UFIXED and GEN_TYPE_SFIXED */
 112          int i, f;
 113       };
 114    };
 115 };
 116
 117 struct gen_field {
 118    char *name;
 119    int start, end;
 120    struct gen_type type;
 121    bool has_default;
 122    uint32_t default_value;
 123
 124    struct gen_enum inline_enum;
 125 };
 126
 127 void gen_field_iterator_init(struct gen_field_iterator *iter,
 128                              struct gen_group *group,
 129                              const uint32_t *p,
 130                              bool print_colors);
 131
 132 bool gen_field_iterator_next(struct gen_field_iterator *iter);
 133
 134 void gen_print_group(FILE *out,
 135                      struct gen_group *group,
 136                      uint64_t offset, const uint32_t *p,
 137                      bool color);
 138
 139 #endif /* GEN_DECODER_H */