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/*
* 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 "drmtest.h"
#include "i915/gem_create.h"
#include "igt_aux.h"
#include "igt_stats.h"
#include "intel_reg.h"
#include "ioctl_wrappers.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);
}
static void make_busy(int fd, uint32_t handle)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 gem_exec;
const uint32_t buf[] = {MI_BATCH_BUFFER_END};
gem_write(fd, handle, 0, buf, sizeof(buf));
memset(&gem_exec, 0, sizeof(gem_exec));
gem_exec.handle = handle;
memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = (uintptr_t)&gem_exec;
execbuf.buffer_count = 1;
execbuf.flags |= I915_EXEC_HANDLE_LUT;
execbuf.flags |= I915_EXEC_NO_RELOC;
if (__gem_execbuf(fd, &execbuf)) {
execbuf.flags = 0;
gem_execbuf(fd, &execbuf);
}
}
int main(int argc, char **argv)
{
int fd = drm_open_driver(DRIVER_INTEL);
int size = 0;
int busy = 0;
int reps = 13;
int ncpus = 1;
int c, n, s;
while ((c = getopt (argc, argv, "bs:r:f")) != -1) {
switch (c) {
case 's':
size = atoi(optarg);
break;
case 'r':
reps = atoi(optarg);
if (reps < 1)
reps = 1;
break;
case 'f':
ncpus = sysconf(_SC_NPROCESSORS_ONLN);
break;
case 'b':
busy = true;
break;
default:
break;
}
}
if (size == 0) {
for (s = 4096; s <= OBJECT_SIZE; s <<= 1) {
igt_stats_t stats;
igt_stats_init_with_size(&stats, reps);
for (n = 0; n < reps; n++) {
struct timespec start, end;
uint64_t count = 0;
clock_gettime(CLOCK_MONOTONIC, &start);
do {
for (c = 0; c < 1000; c++) {
uint32_t handle;
handle = gem_create(fd, s);
gem_set_domain(fd, handle,
I915_GEM_DOMAIN_GTT,
I915_GEM_DOMAIN_GTT);
if (busy)
make_busy(fd, handle);
gem_close(fd, handle);
}
count += c;
clock_gettime(CLOCK_MONOTONIC, &end);
} while (end.tv_sec - start.tv_sec < 2);
igt_stats_push_float(&stats, count / elapsed(&start, &end));
}
printf("%f\n", igt_stats_get_trimean(&stats));
igt_stats_fini(&stats);
}
} else {
double *shared;
shared = mmap(0, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
for (n = 0; n < reps; n++) {
memset(shared, 0, 4096);
igt_fork(child, ncpus) {
struct timespec start, end;
uint64_t count = 0;
clock_gettime(CLOCK_MONOTONIC, &start);
do {
for (c = 0; c < 1000; c++) {
uint32_t handle;
handle = gem_create(fd, size);
gem_set_domain(fd, handle,
I915_GEM_DOMAIN_GTT,
I915_GEM_DOMAIN_GTT);
if (busy)
make_busy(fd, handle);
gem_close(fd, handle);
}
count += c;
clock_gettime(CLOCK_MONOTONIC, &end);
} while (end.tv_sec - start.tv_sec < 2);
shared[child] = count / elapsed(&start, &end);
}
igt_waitchildren();
for (int child = 0; child < ncpus; child++)
shared[ncpus] += shared[child];
printf("%7.3f\n", shared[ncpus]);
}
}
return 0;
}
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