IABSD.fr/xenocara/lib/libdrm/intel/test_decode.c

Branch : - branch - master - tag -

• Show log

  Commit

• Author : jsg
  Date : 2018-09-13 11:55:15
  Hash : a81d3f52
  Message : Import libdrm 2.4.94

• lib/libdrm/intel/test_decode.c

• /*
   * Copyright © 2011 Intel Corporation
   *
   * 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 <string.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <unistd.h>
  #include <fcntl.h>
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <err.h>
  
  #include "libdrm_macros.h"
  #include "intel_bufmgr.h"
  #include "intel_chipset.h"
  
  #define HW_OFFSET 0x12300000
  
  static void
  usage(void)
  {
  	fprintf(stderr, "usage:\n");
  	fprintf(stderr, "  test_decode <batch>\n");
  	fprintf(stderr, "  test_decode <batch> -dump\n");
  	exit(1);
  }
  
  static void
  read_file(const char *filename, void **ptr, size_t *size)
  {
  	int fd, ret;
  	struct stat st;
  
  	fd = open(filename, O_RDONLY);
  	if (fd < 0)
  		errx(1, "couldn't open `%s'", filename);
  
  	ret = fstat(fd, &st);
  	if (ret)
  		errx(1, "couldn't stat `%s'", filename);
  
  	*size = st.st_size;
  	*ptr = drm_mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
  	if (*ptr == MAP_FAILED)
  		errx(1, "couldn't map `%s'", filename);
  
  	close(fd);
  }
  
  static void
  dump_batch(struct drm_intel_decode *ctx, const char *batch_filename)
  {
  	void *batch_ptr;
  	size_t batch_size;
  
  	read_file(batch_filename, &batch_ptr, &batch_size);
  
  	drm_intel_decode_set_batch_pointer(ctx, batch_ptr, HW_OFFSET,
  					   batch_size / 4);
  	drm_intel_decode_set_output_file(ctx, stdout);
  
  	drm_intel_decode(ctx);
  }
  
  static void
  compare_batch(struct drm_intel_decode *ctx, const char *batch_filename)
  {
  	FILE *out = NULL;
  	void *ptr, *ref_ptr, *batch_ptr;
  #if HAVE_OPEN_MEMSTREAM
  	size_t size;
  #endif
  	size_t ref_size, batch_size;
  	const char *ref_suffix = "-ref.txt";
  	char *ref_filename;
  
  	ref_filename = malloc(strlen(batch_filename) + strlen(ref_suffix) + 1);
  	sprintf(ref_filename, "%s%s", batch_filename, ref_suffix);
  
  	/* Read the batch and reference. */
  	read_file(batch_filename, &batch_ptr, &batch_size);
  	read_file(ref_filename, &ref_ptr, &ref_size);
  
  	/* Set up our decode output in memory, because I don't want to
  	 * figure out how to output to a file in a safe and sane way
  	 * inside of an automake project's test infrastructure.
  	 */
  #if HAVE_OPEN_MEMSTREAM
  	out = open_memstream((char **)&ptr, &size);
  #else
  	fprintf(stderr, "platform lacks open_memstream, skipping.\n");
  	exit(77);
  #endif
  
  	drm_intel_decode_set_batch_pointer(ctx, batch_ptr, HW_OFFSET,
  					   batch_size / 4);
  	drm_intel_decode_set_output_file(ctx, out);
  
  	drm_intel_decode(ctx);
  
  	if (strcmp(ref_ptr, ptr) != 0) {
  		fprintf(stderr, "Decode mismatch with reference `%s'.\n",
  			ref_filename);
  		fprintf(stderr, "You can dump the new output using:\n");
  		fprintf(stderr, "  test_decode \"%s\" -dump\n", batch_filename);
  		exit(1);
  	}
  
  	fclose(out);
  	free(ref_filename);
  	free(ptr);
  }
  
  static uint16_t
  infer_devid(const char *batch_filename)
  {
  	struct {
  		const char *name;
  		uint16_t devid;
  	} chipsets[] = {
  		{ "830",  0x3577},
  		{ "855",  0x3582},
  		{ "945",  0x2772},
  		{ "gen4", 0x2a02 },
  		{ "gm45", 0x2a42 },
  		{ "gen5", PCI_CHIP_ILD_G },
  		{ "gen6", PCI_CHIP_SANDYBRIDGE_GT2 },
  		{ "gen7", PCI_CHIP_IVYBRIDGE_GT2 },
  		{ "gen8", 0x1616 },
  		{ NULL, 0 },
  	};
  	int i;
  
  	for (i = 0; chipsets[i].name != NULL; i++) {
  		if (strstr(batch_filename, chipsets[i].name))
  			return chipsets[i].devid;
  	}
  
  	fprintf(stderr, "Couldn't guess chipset id from batch filename `%s'.\n",
  		batch_filename);
  	fprintf(stderr, "Must be contain one of:\n");
  	for (i = 0; chipsets[i].name != NULL; i++) {
  		fprintf(stderr, "  %s\n", chipsets[i].name);
  	}
  	exit(1);
  }
  
  int
  main(int argc, char **argv)
  {
  	uint16_t devid;
  	struct drm_intel_decode *ctx;
  
  	if (argc < 2)
  		usage();
  
  
  	devid = infer_devid(argv[1]);
  
  	ctx = drm_intel_decode_context_alloc(devid);
  
  	if (argc == 3) {
  		if (strcmp(argv[2], "-dump") == 0)
  			dump_batch(ctx, argv[1]);
  		else
  			usage();
  	} else {
  		compare_batch(ctx, argv[1]);
  	}
  
  	drm_intel_decode_context_free(ctx);
  
  	return 0;
  }