src/gallium/drivers/iris/iris_genx_macros.h

   1 /*
   2  * Copyright © 2019 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 shall be included
  12  * in all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 /**
  24  * Macro and function definitions needed in order to use genxml.
  25  *
  26  * This should only be included in sources compiled per-generation.
  27  */
  28
  29 #include "iris_batch.h"
  30
  31 #define __gen_address_type struct iris_address
  32 #define __gen_user_data struct iris_batch
  33 #define __gen_combine_address iris_combine_address
  34
  35 static inline void *
  36 __gen_get_batch_dwords(struct iris_batch *batch, unsigned dwords)
  37 {
  38    return iris_get_command_space(batch, dwords * sizeof(uint32_t));
  39 }
  40
  41 static inline struct iris_address
  42 __gen_address_offset(struct iris_address addr, uint64_t offset)
  43 {
  44    addr.offset += offset;
  45    return addr;
  46 }
  47
  48 static uint64_t
  49 __gen_combine_address(struct iris_batch *batch, void *location,
  50                       struct iris_address addr, uint32_t delta)
  51 {
  52    uint64_t result = addr.offset + delta;
  53
  54    if (addr.bo) {
  55       iris_use_pinned_bo(batch, addr.bo,
  56                          !iris_domain_is_read_only(addr.access), addr.access);
  57       /* Assume this is a general address, not relative to a base. */
  58       result += addr.bo->gtt_offset;
  59    }
  60
  61    return result;
  62 }
  63
  64 #define __gen_address_type struct iris_address
  65 #define __gen_user_data struct iris_batch
  66
  67 #define __genxml_cmd_length(cmd) cmd ## _length
  68 #define __genxml_cmd_length_bias(cmd) cmd ## _length_bias
  69 #define __genxml_cmd_header(cmd) cmd ## _header
  70 #define __genxml_cmd_pack(cmd) cmd ## _pack
  71
  72 #include "genxml/genX_pack.h"
  73 #include "genxml/gen_macros.h"
  74 #include "genxml/genX_bits.h"
  75
  76 /* CS_GPR(15) is reserved for combining conditional rendering predicates
  77  * with GL_ARB_indirect_parameters draw number predicates.
  78  */
  79 #define GEN_MI_BUILDER_NUM_ALLOC_GPRS 15
  80 #include "common/gen_mi_builder.h"
  81
  82 #define _iris_pack_command(batch, cmd, dst, name)                 \
  83    for (struct cmd name = { __genxml_cmd_header(cmd) },           \
  84         *_dst = (void *)(dst); __builtin_expect(_dst != NULL, 1); \
  85         ({ __genxml_cmd_pack(cmd)(batch, (void *)_dst, &name);    \
  86            _dst = NULL;                                           \
  87            }))
  88
  89 #define iris_pack_command(cmd, dst, name) \
  90    _iris_pack_command(NULL, cmd, dst, name)
  91
  92 #define _iris_pack_state(batch, cmd, dst, name)                   \
  93    for (struct cmd name = {},                                     \
  94         *_dst = (void *)(dst); __builtin_expect(_dst != NULL, 1); \
  95         __genxml_cmd_pack(cmd)(batch, (void *)_dst, &name),       \
  96         _dst = NULL)
  97
  98 #define iris_pack_state(cmd, dst, name)                           \
  99    _iris_pack_state(NULL, cmd, dst, name)
 100
 101 #define iris_emit_cmd(batch, cmd, name) \
 102    _iris_pack_command(batch, cmd, __gen_get_batch_dwords(batch, __genxml_cmd_length(cmd)), name)
 103
 104 #define iris_emit_merge(batch, dwords0, dwords1, num_dwords)    \
 105    do {                                                         \
 106       uint32_t *dw = __gen_get_batch_dwords(batch, num_dwords); \
 107       for (uint32_t i = 0; i < num_dwords; i++)                 \
 108          dw[i] = (dwords0)[i] | (dwords1)[i];                   \
 109       VG(VALGRIND_CHECK_MEM_IS_DEFINED(dw, num_dwords));        \
 110    } while (0)
 111
 112
 113 /**
 114  * iris_address constructor helpers:
 115  *
 116  * When using these to construct a CSO, pass NULL for \p bo, and manually
 117  * pin the BO later.  Otherwise, genxml's address handling will add the
 118  * BO to the current batch's validation list at CSO creation time, rather
 119  * than at draw time as desired.
 120  */
 121
 122 UNUSED static struct iris_address
 123 ro_bo(struct iris_bo *bo, uint64_t offset)
 124 {
 125    return (struct iris_address) { .bo = bo, .offset = offset,
 126                                   .access = IRIS_DOMAIN_OTHER_READ };
 127 }
 128
 129 UNUSED static struct iris_address
 130 rw_bo(struct iris_bo *bo, uint64_t offset, enum iris_domain access)
 131 {
 132    return (struct iris_address) { .bo = bo, .offset = offset,
 133                                   .access = access };
 134 }