2 * Copyright © 2012 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 * Daniel Vetter <daniel.vetter@ffwll.ch>
36 #include <sys/ioctl.h>
38 #include "ioctl_wrappers.h"
42 #define OBJECT_SIZE (1024*1024)
43 #define TEST_STRIDE (1024*4)
46 * Testcase: Check set_tiling vs pwrite coherency
53 uint32_t data[OBJECT_SIZE/4];
57 igt_skip_on_simulation();
61 for (i = 0; i < OBJECT_SIZE/4; i++)
64 handle = gem_create(fd, OBJECT_SIZE);
65 ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
68 gem_set_tiling(fd, handle, I915_TILING_X, TEST_STRIDE);
71 gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
74 igt_info("testing pwrite on tiled buffer\n");
75 gem_write(fd, handle, 0, data, OBJECT_SIZE);
76 memset(data, 0, OBJECT_SIZE);
77 gem_read(fd, handle, 0, data, OBJECT_SIZE);
78 for (i = 0; i < OBJECT_SIZE/4; i++)
79 igt_assert(i == data[i]);
81 /* touch it before changing the tiling, so that the fence sticks around */
82 gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
85 gem_set_tiling(fd, handle, I915_TILING_NONE, 0);
87 igt_info("testing pwrite on untiled, but still fenced buffer\n");
88 gem_write(fd, handle, 0, data, OBJECT_SIZE);
89 memset(data, 0, OBJECT_SIZE);
90 gem_read(fd, handle, 0, data, OBJECT_SIZE);
91 for (i = 0; i < OBJECT_SIZE/4; i++)
92 igt_assert(i == data[i]);
94 munmap(ptr, OBJECT_SIZE);