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 <stdio.h>
  30 #include <stdlib.h>
  31 #include <stddef.h>
  32 #include <inttypes.h>
  33 #include "util/list.h"
  34
  35 struct pandecode_mapped_memory {
  36         struct list_head node;
  37
  38         size_t length;
  39
  40         void *addr;
  41         uint64_t gpu_va;
  42
  43         char name[32];
  44 };
  45
  46 void pandecode_initialize(void);
  47
  48 char *pointer_as_memory_reference(uint64_t ptr);
  49
  50 struct pandecode_mapped_memory *pandecode_find_mapped_gpu_mem_containing(uint64_t addr);
  51
  52 void
  53 pandecode_inject_mmap(uint64_t gpu_va, void *cpu, unsigned sz, const char *name);
  54
  55 static inline void *
  56 __pandecode_fetch_gpu_mem(const struct pandecode_mapped_memory *mem,
  57                           uint64_t gpu_va, size_t size,
  58                           int line, const char *filename)
  59 {
  60         if (!mem)
  61                 mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
  62
  63         if (!mem) {
  64                 fprintf(stderr, "Access to unknown memory %" PRIx64 " in %s:%d",
  65                         gpu_va, filename, line);
  66                 assert(0);
  67         }
  68
  69         assert(mem);
  70         assert(size + (gpu_va - mem->gpu_va) <= mem->length);
  71
  72         return mem->addr + gpu_va - mem->gpu_va;
  73 }
  74
  75 #define pandecode_fetch_gpu_mem(mem, gpu_va, size) \
  76         __pandecode_fetch_gpu_mem(mem, gpu_va, size, __LINE__, __FILE__)
  77
  78 /* Returns a validated pointer to mapped GPU memory with the given pointer type,
  79  * size automatically determined from the pointer type
  80  */
  81 #define PANDECODE_PTR(mem, gpu_va, type) \
  82         ((type*)(__pandecode_fetch_gpu_mem(mem, gpu_va, sizeof(type), \
  83                                          __LINE__, __FILE__)))
  84
  85 /* Usage: <variable type> PANDECODE_PTR_VAR(name, mem, gpu_va) */
  86 #define PANDECODE_PTR_VAR(name, mem, gpu_va) \
  87         name = __pandecode_fetch_gpu_mem(mem, gpu_va, sizeof(*name), \
  88                                        __LINE__, __FILE__)
  89
  90 /* Common entrypoint */
  91 int pandecode_jc(uint64_t jc_gpu_va, bool bifrost);
  92
  93 #endif /* __MMAP_TRACE_H__ */