1 /*
2 * Copyright © 2017 Broadcom
3 *
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:
10 *
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
13 * Software.
14 *
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
21 * IN THE SOFTWARE.
22 */
23
24 #include "igt.h"
25 #include "igt_vc4.h"
26 #include <unistd.h>
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include <fcntl.h>
31 #include <inttypes.h>
32 #include <errno.h>
33 #include <sys/stat.h>
34 #include <sys/ioctl.h>
35 #include <poll.h>
36 #include "vc4_drm.h"
37
38 static void
poll_write_bo_test(int fd,int poll_flag)39 poll_write_bo_test(int fd, int poll_flag)
40 {
41 size_t size = 1024 * 1024 * 4;
42 uint32_t clearval = 0xaabbccdd;
43 /* Get a BO that's being rendered to. */
44 int handle = igt_vc4_get_cleared_bo(fd, size, clearval);
45 int dmabuf_fd = prime_handle_to_fd(fd, handle);
46 struct pollfd p = {
47 .fd = dmabuf_fd,
48 .events = POLLIN,
49 };
50 struct drm_vc4_wait_bo wait = {
51 .handle = handle,
52 .timeout_ns = 0,
53 };
54
55 /* Block for a couple of minutes waiting for rendering to complete. */
56 int poll_ret = poll(&p, 1, 120 * 1000);
57 igt_assert(poll_ret == 1);
58
59 /* Now that we've waited for idle, a nonblocking wait for the
60 * BO should pass.
61 */
62 do_ioctl(fd, DRM_IOCTL_VC4_WAIT_BO, &wait);
63
64 close(dmabuf_fd);
65 gem_close(fd, handle);
66 }
67
68 igt_main
69 {
70 int fd;
71
72 igt_fixture
73 fd = drm_open_driver(DRIVER_VC4);
74
75 igt_subtest("poll-write-waits-until-write-done") {
76 poll_write_bo_test(fd, POLLOUT);
77 }
78
79 igt_subtest("poll-read-waits-until-write-done") {
80 poll_write_bo_test(fd, POLLIN);
81 }
82
83 igt_fixture
84 close(fd);
85 }
86