blob: c809e0877c4043e6bb968aebc7574ba8a2aa4027 [file] [log] [blame]
/*
* Copyright © 2011-2015 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.
*
* Authors:
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <time.h>
#include "drm.h"
#include "ioctl_wrappers.h"
#include "drmtest.h"
#include "igt_aux.h"
#include "igt_stats.h"
#define OBJECT_SIZE (1<<23)
static double elapsed(const struct timespec *start,
const struct timespec *end)
{
return (end->tv_sec - start->tv_sec) + 1e-9*(end->tv_nsec - start->tv_nsec);
}
int main(int argc, char **argv)
{
int fd = drm_open_driver(DRIVER_INTEL);
enum map {CPU, GTT, WC} map = CPU;
enum dir {READ, WRITE, CLEAR, FAULT} dir = READ;
int tiling = I915_TILING_NONE;
struct timespec start, end;
void *buf = malloc(OBJECT_SIZE);
uint32_t handle;
void *ptr, *src, *dst;
int reps = 1;
int loops;
int c;
while ((c = getopt (argc, argv, "m:d:r:t:")) != -1) {
switch (c) {
case 'm':
if (strcmp(optarg, "cpu") == 0)
map = CPU;
else if (strcmp(optarg, "gtt") == 0)
map = GTT;
else if (strcmp(optarg, "wc") == 0)
map = WC;
else
abort();
break;
case 'd':
if (strcmp(optarg, "read") == 0)
dir = READ;
else if (strcmp(optarg, "write") == 0)
dir = WRITE;
else if (strcmp(optarg, "clear") == 0)
dir = CLEAR;
else if (strcmp(optarg, "fault") == 0)
dir = FAULT;
else
abort();
break;
case 't':
if (strcmp(optarg, "x") == 0)
tiling = I915_TILING_X;
else if (strcmp(optarg, "y") == 0)
tiling = I915_TILING_Y;
else if (strcmp(optarg, "none") == 0)
tiling = I915_TILING_NONE;
else
abort();
break;
case 'r':
reps = atoi(optarg);
if (reps < 1)
reps = 1;
break;
default:
break;
}
}
handle = gem_create(fd, OBJECT_SIZE);
switch (map) {
case CPU:
ptr = gem_mmap__cpu(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
break;
case GTT:
ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_WRITE);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
break;
case WC:
ptr = gem_mmap__wc(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
break;
default:
abort();
}
gem_set_tiling(fd, handle, tiling, 512);
if (dir == READ) {
src = ptr;
dst = buf;
} else {
src = buf;
dst = ptr;
}
clock_gettime(CLOCK_MONOTONIC, &start);
switch (dir) {
case CLEAR:
case FAULT:
memset(dst, 0, OBJECT_SIZE);
break;
default:
memcpy(dst, src, OBJECT_SIZE);
break;
}
clock_gettime(CLOCK_MONOTONIC, &end);
loops = 2 / elapsed(&start, &end);
while (reps--) {
clock_gettime(CLOCK_MONOTONIC, &start);
for (c = 0; c < loops; c++) {
int page;
switch (dir) {
case CLEAR:
memset(dst, 0, OBJECT_SIZE);
break;
case FAULT:
munmap(ptr, OBJECT_SIZE);
switch (map) {
case CPU:
ptr = gem_mmap__cpu(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
break;
case GTT:
ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_WRITE);
break;
case WC:
ptr = gem_mmap__wc(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
break;
default:
abort();
}
for (page = 0; page < OBJECT_SIZE; page += 4096) {
uint32_t *x = (uint32_t *)ptr + page/4;
__asm__ __volatile__("": : :"memory");
page += *x; /* should be zero! */
}
break;
default:
memcpy(dst, src, OBJECT_SIZE);
break;
}
}
clock_gettime(CLOCK_MONOTONIC, &end);
printf("%7.3f\n", OBJECT_SIZE / elapsed(&start, &end) * loops / (1024*1024));
}
return 0;
}