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/*
* Copyright (C) 2019 Alyssa Rosenzweig
* Copyright (C) 2017-2018 Lyude Paul
* Copyright (C) 2019 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include "decode.h"
#include "util/macros.h"
/* Memory handling */
static struct pandecode_mapped_memory mmaps;
struct pandecode_mapped_memory *
pandecode_find_mapped_gpu_mem_containing(uint64_t addr)
{
list_for_each_entry(struct pandecode_mapped_memory, pos, &mmaps.node, node) {
if (addr >= pos->gpu_va && addr < pos->gpu_va + pos->length)
return pos;
}
return NULL;
}
static void
pandecode_add_name(struct pandecode_mapped_memory *mem, uint64_t gpu_va, const char *name)
{
if (!name) {
/* If we don't have a name, assign one */
snprintf(mem->name, ARRAY_SIZE(mem->name) - 1,
"memory_%" PRIx64, gpu_va);
} else {
assert((strlen(name) + 1) < ARRAY_SIZE(mem->name));
memcpy(mem->name, name, strlen(name) + 1);
}
}
void
pandecode_inject_mmap(uint64_t gpu_va, void *cpu, unsigned sz, const char *name)
{
/* First, search if we already mapped this and are just updating an address */
list_for_each_entry(struct pandecode_mapped_memory, pos, &mmaps.node, node) {
if (pos->gpu_va == gpu_va) {
/* TODO: Resizing weirdness. Only applies to tracing
* the legacy driver, not for native traces */
pos->length = sz;
pos->addr = cpu;
pandecode_add_name(pos, gpu_va, name);
return;
}
}
/* Otherwise, add a fresh mapping */
struct pandecode_mapped_memory *mapped_mem = NULL;
mapped_mem = malloc(sizeof(*mapped_mem));
list_inithead(&mapped_mem->node);
mapped_mem->gpu_va = gpu_va;
mapped_mem->length = sz;
mapped_mem->addr = cpu;
pandecode_add_name(mapped_mem, gpu_va, name);
list_add(&mapped_mem->node, &mmaps.node);
}
char *
pointer_as_memory_reference(uint64_t ptr)
{
struct pandecode_mapped_memory *mapped;
char *out = malloc(128);
/* Try to find the corresponding mapped zone */
mapped = pandecode_find_mapped_gpu_mem_containing(ptr);
if (mapped) {
snprintf(out, 128, "%s + %d", mapped->name, (int) (ptr - mapped->gpu_va));
return out;
}
/* Just use the raw address if other options are exhausted */
snprintf(out, 128, "0x%" PRIx64, ptr);
return out;
}
void
pandecode_initialize(void)
{
list_inithead(&mmaps.node);
}
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