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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"
#include "util/u_debug.h"
#include "util/hash_table.h"
/* Memory handling */
static struct hash_table_u64 *mmap_table;
struct pandecode_mapped_memory *
pandecode_find_mapped_gpu_mem_containing(uint64_t addr)
{
return _mesa_hash_table_u64_search(mmap_table, addr & ~(4096 - 1));
}
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 */
struct pandecode_mapped_memory *existing =
pandecode_find_mapped_gpu_mem_containing(gpu_va);
if (existing && existing->gpu_va == gpu_va) {
existing->length = sz;
existing->addr = cpu;
pandecode_add_name(existing, gpu_va, name);
return;
}
/* Otherwise, add a fresh mapping */
struct pandecode_mapped_memory *mapped_mem = NULL;
mapped_mem = malloc(sizeof(*mapped_mem));
mapped_mem->gpu_va = gpu_va;
mapped_mem->length = sz;
mapped_mem->addr = cpu;
pandecode_add_name(mapped_mem, gpu_va, name);
/* Add it to the table */
assert((gpu_va & 4095) == 0);
for (unsigned i = 0; i < sz; i += 4096)
_mesa_hash_table_u64_insert(mmap_table, gpu_va + i, mapped_mem);
}
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;
}
static int pandecode_dump_frame_count = 0;
static void
pandecode_dump_file_open(bool force_stderr)
{
if (pandecode_dump_stream)
return;
/* This does a getenv every frame, so it is possible to use
* setenv to change the base at runtime.
*/
const char *dump_file_base = debug_get_option("PANDECODE_DUMP_FILE", "pandecode.dump");
if (force_stderr || !strcmp(dump_file_base, "stderr"))
pandecode_dump_stream = stderr;
else {
char buffer[1024];
snprintf(buffer, sizeof(buffer), "%s.%04d", dump_file_base, pandecode_dump_frame_count);
printf("pandecode: dump command stream to file %s\n", buffer);
pandecode_dump_stream = fopen(buffer, "w");
if (!pandecode_dump_stream)
fprintf(stderr,
"pandecode: failed to open command stream log file %s\n",
buffer);
}
}
static void
pandecode_dump_file_close(void)
{
if (pandecode_dump_stream && pandecode_dump_stream != stderr) {
fclose(pandecode_dump_stream);
pandecode_dump_stream = NULL;
}
}
void
pandecode_initialize(bool to_stderr)
{
mmap_table = _mesa_hash_table_u64_create(NULL);
pandecode_dump_file_open(to_stderr);
}
void
pandecode_next_frame(void)
{
pandecode_dump_file_close();
pandecode_dump_frame_count++;
pandecode_dump_file_open(false);
}
void
pandecode_close(void)
{
_mesa_hash_table_u64_destroy(mmap_table, NULL);
pandecode_dump_file_close();
}
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