src/panfrost/pandecode/common.c

   1 /*
   2  * Copyright (C) 2019 Alyssa Rosenzweig
   3  * Copyright (C) 2017-2018 Lyude Paul
   4  * Copyright (C) 2019 Collabora, Ltd.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <assert.h>
  29 #include <stdint.h>
  30 #include <string.h>
  31
  32 #include "decode.h"
  33 #include "util/macros.h"
  34
  35 /* Memory handling */
  36
  37 static struct pandecode_mapped_memory mmaps;
  38
  39 struct pandecode_mapped_memory *
  40 pandecode_find_mapped_gpu_mem_containing(mali_ptr addr)
  41 {
  42         list_for_each_entry(struct pandecode_mapped_memory, pos, &mmaps.node, node) {
  43                 if (addr >= pos->gpu_va && addr < pos->gpu_va + pos->length)
  44                         return pos;
  45         }
  46
  47         return NULL;
  48 }
  49
  50 void
  51 pandecode_inject_mmap(mali_ptr gpu_va, void *cpu, unsigned sz, const char *name)
  52 {
  53         struct pandecode_mapped_memory *mapped_mem = NULL;
  54
  55         mapped_mem = malloc(sizeof(*mapped_mem));
  56         list_inithead(&mapped_mem->node);
  57
  58         mapped_mem->gpu_va = gpu_va;
  59         mapped_mem->length = sz;
  60         mapped_mem->addr = cpu;
  61
  62         if (!name) {
  63                 /* If we don't have a name, assign one */
  64
  65                 snprintf(mapped_mem->name, ARRAY_SIZE(mapped_mem->name) - 1,
  66                          "memory_%" PRIx64, gpu_va);
  67         } else {
  68                 assert(strlen(name) < ARRAY_SIZE(mapped_mem->name));
  69                 memcpy(mapped_mem->name, name, strlen(name));
  70         }
  71
  72         list_add(&mapped_mem->node, &mmaps.node);
  73 }
  74
  75 char *
  76 pointer_as_memory_reference(mali_ptr ptr)
  77 {
  78         struct pandecode_mapped_memory *mapped;
  79         char *out = malloc(128);
  80
  81         /* Try to find the corresponding mapped zone */
  82
  83         mapped = pandecode_find_mapped_gpu_mem_containing(ptr);
  84
  85         if (mapped) {
  86                 snprintf(out, 128, "%s + %d", mapped->name, (int) (ptr - mapped->gpu_va));
  87                 return out;
  88         }
  89
  90         /* Just use the raw address if other options are exhausted */
  91
  92         snprintf(out, 128, MALI_PTR_FMT, ptr);
  93         return out;
  94
  95 }
  96
  97 void
  98 pandecode_initialize(void)
  99 {
 100         list_inithead(&mmaps.node);
 101
 102 }