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/*
* Copyright © 2008 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:
* Jesse Barnes <jbarnes@virtuousgeek.org>
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include "drm.h"
#include "i915_drm.h"
#include "drmtest.h"
/* Should take 64 pages to store the page pointers on 64 bit */
#define OBJ_SIZE (128 * 1024 * 1024)
unsigned char data[OBJ_SIZE];
static uint64_t
gem_aperture_size(int fd)
{
struct drm_i915_gem_get_aperture aperture;
aperture.aper_size = 512*1024*1024;
(void)drmIoctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
return aperture.aper_size;
}
static void
test_large_object(int fd)
{
struct drm_i915_gem_create create;
struct drm_i915_gem_pwrite pwrite;
struct drm_i915_gem_pin pin;
uint32_t obj_size;
int ret;
memset(&create, 0, sizeof(create));
memset(&pwrite, 0, sizeof(pwrite));
memset(&pin, 0, sizeof(pin));
if (gem_aperture_size(fd)*3/4 < OBJ_SIZE/2)
obj_size = OBJ_SIZE / 4;
else if (gem_aperture_size(fd)*3/4 < OBJ_SIZE)
obj_size = OBJ_SIZE / 2;
else
obj_size = OBJ_SIZE;
create.size = obj_size;
printf("obj size %i\n", obj_size);
ret = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
if (ret) {
fprintf(stderr, "object creation failed: %s\n",
strerror(errno));
exit(ret);
}
pin.handle = create.handle;
ret = ioctl(fd, DRM_IOCTL_I915_GEM_PIN, &pin);
if (ret) {
fprintf(stderr, "pin failed: %s\n",
strerror(errno));
exit(ret);
}
pwrite.handle = create.handle;
pwrite.size = obj_size;
pwrite.data_ptr = (uint64_t)data;
ret = ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite);
if (ret) {
fprintf(stderr, "pwrite failed: %s\n",
strerror(errno));
exit(ret);
}
/* kernel should clean this up for us */
}
int main(int argc, char **argv)
{
int fd;
fd = drm_open_any();
test_large_object(fd);
return 0;
}
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