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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:
* Eric Anholt <eric@anholt.net>
*
*/
#include <unistd.h>
#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 <sys/mman.h>
#include "drm.h"
#include "i915_drm.h"
#include "drmtest.h"
#define OBJECT_SIZE 16384
int main(int argc, char **argv)
{
int fd;
struct drm_i915_gem_mmap gem_mmap;
uint8_t expected[OBJECT_SIZE];
uint8_t buf[OBJECT_SIZE];
uint8_t *addr;
int ret;
int handle;
fd = drm_open_any();
memset(&gem_mmap, 0, sizeof(gem_mmap));
gem_mmap.handle = 0x10101010;
gem_mmap.offset = 0;
gem_mmap.size = 4096;
printf("Testing mmaping of bad object.\n");
ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &gem_mmap);
assert(ret == -1 && errno == ENOENT);
handle = gem_create(fd, OBJECT_SIZE);
printf("Testing mmaping of newly created object.\n");
gem_mmap.handle = handle;
gem_mmap.offset = 0;
gem_mmap.size = OBJECT_SIZE;
ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &gem_mmap);
assert(ret == 0);
addr = (uint8_t *)(uintptr_t)gem_mmap.addr_ptr;
printf("Testing contents of newly created object.\n");
memset(expected, 0, sizeof(expected));
assert(memcmp(addr, expected, sizeof(expected)) == 0);
printf("Testing coherency of writes and mmap reads.\n");
memset(buf, 0, sizeof(buf));
memset(buf + 1024, 0x01, 1024);
memset(expected + 1024, 0x01, 1024);
gem_write(fd, handle, 0, buf, OBJECT_SIZE);
assert(memcmp(buf, addr, sizeof(buf)) == 0);
printf("Testing that mapping stays after close\n");
gem_close(fd, handle);
assert(memcmp(buf, addr, sizeof(buf)) == 0);
printf("Testing unmapping\n");
munmap(addr, OBJECT_SIZE);
close(fd);
return 0;
}
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