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/*
* gdrm-gem-mmap.c
*
* Test Glamo DRM GEM memory mapping
*
* (c) 2009 Thomas White <taw@bitwiz.org.uk>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* Copyright © 2008 Intel Corporation
*
*
* Based on tests/gem_mmap.c from libdrm, to which the following notice applies:
*
* 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>
*
*/
#define _FILE_OFFSET_BITS 64
#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/mman.h>
#include "drm.h"
#include "glamo_drm.h"
#include "drmtest.h"
#define OBJECT_SIZE 16384
int main(int argc, char **argv)
{
int fd;
struct drm_glamo_gem_create create;
struct drm_glamo_gem_mmap mmap_arg;
struct drm_gem_close unref;
uint8_t expected[OBJECT_SIZE];
uint8_t buf[OBJECT_SIZE];
uint8_t *addr;
uint16_t *addr16;
int ret;
int handle;
char tmp[4];
int i;
fd = drm_open_any();
memset(&mmap_arg, 0, sizeof(mmap_arg));
mmap_arg.handle = 0x10101010;
printf("Testing mmaping of bad object.\n");
ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg);
assert(ret == -1 && errno == EBADF);
memset(&create, 0, sizeof(create));
create.size = OBJECT_SIZE;
ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_CREATE, &create);
assert(ret == 0);
handle = create.handle;
printf("Testing mmaping of newly created object.\n");
mmap_arg.handle = handle;
mmap_arg.offset = 0;
ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg);
assert(ret == 0);
printf("The offset is %8llx\n", (long long int)mmap_arg.offset);
addr = mmap(0, OBJECT_SIZE, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, mmap_arg.offset);
printf("Virtual address is 0x%p\n", addr);
printf("Press enter to continue...\n");
fgets(tmp, 3, stdin);
printf("Testing contents of newly created object.\n");
addr16 = (uint16_t *)addr;
for ( i=0; i<OBJECT_SIZE/2; i++ ) {
addr16[i] = 0xABCD;
}
for ( i=0; i<OBJECT_SIZE/2; i++ ) {
if ( addr16[i] != 0xABCD ) {
printf("%i = %16x\n", i, addr16[i]);
}
}
for ( i=0; i<OBJECT_SIZE/2; i++ ) {
if ( addr16[i] != 0xABCD ) {
printf("%i = %16x\n", i, addr16[i]);
}
}
printf("Testing that mapping stays after close\n");
unref.handle = handle;
ret = ioctl(fd, DRM_IOCTL_GEM_CLOSE, &unref);
assert(ret == 0);
addr16 = (uint16_t *)addr;
for ( i=0; i<OBJECT_SIZE/2; i++ ) {
if ( addr16[i] != 0xABCD ) {
printf("%i = %16x\n", i, addr16[i]);
}
}
for ( i=0; i<OBJECT_SIZE/2; i++ ) {
if ( addr16[i] != 0xABCD ) {
printf("%i = %16x\n", i, addr16[i]);
}
}
printf("Testing unmapping\n");
munmap(addr, OBJECT_SIZE);
close(fd);
return 0;
}
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