src/panfrost/pandecode/decode.h

   1 /*
   2  * Copyright (C) 2017-2019 Lyude Paul
   3  * Copyright (C) 2017-2019 Alyssa Rosenzweig
   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 FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  */
  25
  26 #ifndef __PAN_DECODE_H__
  27 #define __PAN_DECODE_H__
  28
  29 #include "public.h"
  30 #include "util/list.h"
  31
  32 struct pandecode_mapped_memory {
  33         struct list_head node;
  34
  35         size_t length;
  36
  37         void *addr;
  38         uint64_t gpu_va;
  39
  40         char name[32];
  41 };
  42
  43 char *pointer_as_memory_reference(uint64_t ptr);
  44
  45 struct pandecode_mapped_memory *pandecode_find_mapped_gpu_mem_containing(uint64_t addr);
  46
  47 static inline void *
  48 __pandecode_fetch_gpu_mem(const struct pandecode_mapped_memory *mem,
  49                           uint64_t gpu_va, size_t size,
  50                           int line, const char *filename)
  51 {
  52         if (!mem)
  53                 mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
  54
  55         if (!mem) {
  56                 fprintf(stderr, "Access to unknown memory %" PRIx64 " in %s:%d",
  57                         gpu_va, filename, line);
  58                 assert(0);
  59         }
  60
  61         assert(mem);
  62         assert(size + (gpu_va - mem->gpu_va) <= mem->length);
  63
  64         return mem->addr + gpu_va - mem->gpu_va;
  65 }
  66
  67 #define pandecode_fetch_gpu_mem(mem, gpu_va, size) \
  68         __pandecode_fetch_gpu_mem(mem, gpu_va, size, __LINE__, __FILE__)
  69
  70 /* Returns a validated pointer to mapped GPU memory with the given pointer type,
  71  * size automatically determined from the pointer type
  72  */
  73 #define PANDECODE_PTR(mem, gpu_va, type) \
  74         ((type*)(__pandecode_fetch_gpu_mem(mem, gpu_va, sizeof(type), \
  75                                          __LINE__, __FILE__)))
  76
  77 /* Usage: <variable type> PANDECODE_PTR_VAR(name, mem, gpu_va) */
  78 #define PANDECODE_PTR_VAR(name, mem, gpu_va) \
  79         name = __pandecode_fetch_gpu_mem(mem, gpu_va, sizeof(*name), \
  80                                        __LINE__, __FILE__)
  81
  82 #endif /* __MMAP_TRACE_H__ */