2 * Copyright © 2008 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Eric Anholt <eric@anholt.net>
39 #define OBJECT_SIZE 16384
41 int do_read(int fd, int handle, void *buf, int offset, int size)
43 struct drm_i915_gem_pread read;
45 /* Ensure that we don't have any convenient data in buf in case
48 memset(buf, 0xd0, size);
50 memset(&read, 0, sizeof(read));
52 read.data_ptr = (uintptr_t)buf;
56 return ioctl(fd, DRM_IOCTL_I915_GEM_PREAD, &read);
59 int do_write(int fd, int handle, void *buf, int offset, int size)
61 struct drm_i915_gem_pwrite write;
63 memset(&write, 0, sizeof(write));
64 write.handle = handle;
65 write.data_ptr = (uintptr_t)buf;
67 write.offset = offset;
69 return ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &write);
72 int main(int argc, char **argv)
75 struct drm_i915_gem_create create;
76 struct drm_i915_gem_mmap mmap;
77 struct drm_gem_close unref;
78 uint8_t expected[OBJECT_SIZE];
79 uint8_t buf[OBJECT_SIZE];
86 memset(&mmap, 0, sizeof(mmap));
87 mmap.handle = 0x10101010;
90 printf("Testing mmaping of bad object.\n");
91 ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &mmap);
92 assert(ret == -1 && errno == EBADF);
94 memset(&create, 0, sizeof(create));
95 create.size = OBJECT_SIZE;
96 ret = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
98 handle = create.handle;
100 printf("Testing mmaping of newly created object.\n");
101 mmap.handle = handle;
103 mmap.size = OBJECT_SIZE;
104 ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &mmap);
106 addr = (uint8_t *)(uintptr_t)mmap.addr_ptr;
108 printf("Testing contents of newly created object.\n");
109 memset(expected, 0, sizeof(expected));
110 assert(memcmp(addr, expected, sizeof(expected)) == 0);
112 printf("Testing coherency of writes and mmap reads.\n");
113 memset(buf, 0, sizeof(buf));
114 memset(buf + 1024, 0x01, 1024);
115 memset(expected + 1024, 0x01, 1024);
116 ret = do_write(fd, handle, buf, 0, OBJECT_SIZE);
118 assert(memcmp(buf, addr, sizeof(buf)) == 0);
120 printf("Testing that mapping stays after close\n");
121 unref.handle = handle;
122 ret = ioctl(fd, DRM_IOCTL_GEM_CLOSE, &unref);
124 assert(memcmp(buf, addr, sizeof(buf)) == 0);
126 printf("Testing unmapping\n");
127 munmap(addr, OBJECT_SIZE);