ntel-gpu-tools/tests/gem_exec_nop.c
Chris Wilson 04bd964527 igt/gem_exec_nop: Restore SLOW_QUICK loop terminator
The upper bound for SLOW_QUICK was added for the benefit of the slow
simulator, not because, as I wrongly thought, of the latency
measurements.

SLOW_QUICK was added in

commit d1e862324b747a0ab5d985eaa6830076817231c5
Author: Damien Lespiau <damien.lespiau@intel.com>
Date:   Mon Mar 25 20:06:20 2013 +0000

    tests: Instrument tests run in simulation to run quickly

and dropped in

commit 89bcdb9022fb7a1f66635b9f2546356ad0c0761a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Dec 8 13:42:50 2015 +0000

    igt/gem_exec_nop: Remove nop latency measurements

Reported-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2015-12-16 19:55:36 +00:00

110 lines
3.1 KiB
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.
*
* Authors:
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
#include "igt.h"
#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"
#define LOCAL_I915_EXEC_NO_RELOC (1<<11)
#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
#define LOCAL_I915_EXEC_VEBOX (4<<0)
const uint32_t batch[2] = {MI_BATCH_BUFFER_END};
int device;
static void loop(int fd, uint32_t handle, unsigned ring_id, const char *ring_name)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 gem_exec[1];
int count;
gem_require_ring(fd, ring_id);
memset(&gem_exec, 0, sizeof(gem_exec));
gem_exec[0].handle = handle;
memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = 1;
execbuf.flags = ring_id;
execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT;
execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
if (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf)) {
execbuf.flags = ring_id;
do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
}
gem_sync(fd, handle);
for (count = 1; count <= SLOW_QUICK(1<<17, 1<<4); count <<= 1) {
int loops = count;
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, 0);
while (loops--)
do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
gem_sync(fd, handle);
}
}
igt_main
{
uint32_t handle = 0;
igt_fixture {
device = drm_open_driver(DRIVER_INTEL);
handle = gem_create(device, 4096);
gem_write(device, handle, 0, batch, sizeof(batch));
}
igt_subtest("render")
loop(device, handle, I915_EXEC_RENDER, "render");
igt_subtest("bsd")
loop(device, handle, I915_EXEC_BSD, "bsd");
igt_subtest("blt")
loop(device, handle, I915_EXEC_BLT, "blt");
igt_subtest("vebox")
loop(device, handle, LOCAL_I915_EXEC_VEBOX, "vebox");
igt_fixture {
gem_close(device, handle);
close(device);
}
}