1 /*
2 * Copyright © 2013 Intel Corporation
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 * Authors:
24 * Chris Wilson <[email protected]>
25 *
26 */
27
28 #include "igt.h"
29 #include <pthread.h>
30 #include <unistd.h>
31 #include <signal.h>
32 #include <stdlib.h>
33 #include <stdint.h>
34 #include <stdio.h>
35 #include <string.h>
36 #include <fcntl.h>
37 #include <inttypes.h>
38 #include <errno.h>
39 #include <sys/stat.h>
40 #include <sys/ioctl.h>
41 #include <sys/time.h>
42 #include <sys/syscall.h>
43 #include "drm.h"
44
45 #define OBJECT_SIZE (256 * 1024)
46
47 #define COPY_BLT_CMD (2<<29|0x53<<22|0x6)
48 #define BLT_WRITE_ALPHA (1<<21)
49 #define BLT_WRITE_RGB (1<<20)
50
51 static uint32_t devid;
52 static bool has_64bit_relocations;
53
54 #define sigev_notify_thread_id _sigev_un._tid
55
selfcopy(int fd,uint32_t handle,int loops)56 static void selfcopy(int fd, uint32_t handle, int loops)
57 {
58 struct drm_i915_gem_relocation_entry reloc[2];
59 struct drm_i915_gem_exec_object2 gem_exec[2];
60 struct drm_i915_gem_execbuffer2 execbuf;
61 struct drm_i915_gem_pwrite gem_pwrite;
62 struct drm_i915_gem_create create;
63 uint32_t buf[16], *b = buf;
64
65 memset(reloc, 0, sizeof(reloc));
66
67 *b = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
68 if (has_64bit_relocations)
69 *b += 2;
70 b++;
71 *b++ = 0xcc << 16 | 1 << 25 | 1 << 24 | (4*1024);
72 *b++ = 0;
73 *b++ = 1 << 16 | 1024;
74
75 reloc[0].offset = (b - buf) * sizeof(*b);
76 reloc[0].target_handle = handle;
77 reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
78 reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
79 *b++ = 0;
80 if (has_64bit_relocations)
81 *b++ = 0;
82
83 *b++ = 512 << 16;
84 *b++ = 4*1024;
85
86 reloc[1].offset = (b - buf) * sizeof(*b);
87 reloc[1].target_handle = handle;
88 reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
89 reloc[1].write_domain = 0;
90 *b++ = 0;
91 if (has_64bit_relocations)
92 *b++ = 0;
93
94 *b++ = MI_BATCH_BUFFER_END;
95 *b++ = 0;
96
97 memset(gem_exec, 0, sizeof(gem_exec));
98 gem_exec[0].handle = handle;
99
100 memset(&create, 0, sizeof(create));
101 create.handle = 0;
102 create.size = 4096;
103 drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
104 gem_exec[1].handle = create.handle;
105 gem_exec[1].relocation_count = 2;
106 gem_exec[1].relocs_ptr = to_user_pointer(reloc);
107
108 memset(&execbuf, 0, sizeof(execbuf));
109 execbuf.buffers_ptr = to_user_pointer(gem_exec);
110 execbuf.buffer_count = 2;
111 execbuf.batch_len = (b - buf) * sizeof(*b);
112 if (HAS_BLT_RING(devid))
113 execbuf.flags |= I915_EXEC_BLT;
114
115 memset(&gem_pwrite, 0, sizeof(gem_pwrite));
116 gem_pwrite.handle = create.handle;
117 gem_pwrite.offset = 0;
118 gem_pwrite.size = sizeof(buf);
119 gem_pwrite.data_ptr = to_user_pointer(buf);
120 if (drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite) == 0) {
121 while (loops-- && __gem_execbuf(fd, &execbuf) == 0)
122 ;
123 }
124
125 drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &create.handle);
126 }
127
load(int fd)128 static uint32_t load(int fd)
129 {
130 uint32_t handle;
131
132 handle = gem_create(fd, OBJECT_SIZE);
133 if (handle == 0)
134 return 0;
135
136 selfcopy(fd, handle, 100);
137 return handle;
138 }
139
process(int child)140 static void process(int child)
141 {
142 uint32_t handle;
143 int fd;
144
145 fd = drm_open_driver(DRIVER_INTEL);
146
147 handle = load(fd);
148 if ((child & 63) == 63)
149 gem_read(fd, handle, 0, &handle, sizeof(handle));
150
151 gem_quiescent_gpu(fd);
152 }
153
154 struct crashme {
155 int fd;
156 } crashme;
157
crashme_now(int sig)158 static void crashme_now(int sig)
159 {
160 close(crashme.fd);
161 }
162
163 #define usec(x) (1000*(x))
164 #define msec(x) usec(1000*(x))
165
threads(int timeout)166 static void threads(int timeout)
167 {
168 struct sigevent sev;
169 struct sigaction act;
170 struct drm_gem_open name;
171 struct itimerspec its;
172 timer_t timer;
173 int fd;
174
175 memset(&act, 0, sizeof(act));
176 act.sa_handler = crashme_now;
177 igt_assert(sigaction(SIGRTMIN, &act, NULL) == 0);
178
179 memset(&sev, 0, sizeof(sev));
180 sev.sigev_notify = SIGEV_SIGNAL | SIGEV_THREAD_ID;
181 sev.sigev_notify_thread_id = gettid();
182 sev.sigev_signo = SIGRTMIN;
183 igt_assert(timer_create(CLOCK_MONOTONIC, &sev, &timer) == 0);
184
185 fd = drm_open_driver(DRIVER_INTEL);
186 name.name = gem_flink(fd, gem_create(fd, OBJECT_SIZE));
187
188 igt_until_timeout(timeout) {
189 crashme.fd = drm_open_driver(DRIVER_INTEL);
190
191 memset(&its, 0, sizeof(its));
192 its.it_value.tv_nsec = msec(1) + (rand() % msec(10));
193 igt_assert(timer_settime(timer, 0, &its, NULL) == 0);
194
195 do {
196 if (drmIoctl(crashme.fd, DRM_IOCTL_GEM_OPEN, &name))
197 break;
198
199 selfcopy(crashme.fd, name.handle, 100);
200 drmIoctl(crashme.fd, DRM_IOCTL_GEM_CLOSE, &name.handle);
201 } while (1);
202
203 close(crashme.fd);
204 }
205
206 timer_delete(timer);
207
208 gem_quiescent_gpu(fd);
209 close(fd);
210 }
211
212 igt_main
213 {
214 igt_fixture {
215 int fd;
216
217 fd = drm_open_driver(DRIVER_INTEL);
218 igt_require_gem(fd);
219
220 devid = intel_get_drm_devid(fd);
221 has_64bit_relocations = intel_gen(devid) >= 8;
222
223 igt_fork_hang_detector(fd);
224 close(fd);
225 }
226
227 igt_subtest("basic-process") {
228 igt_fork(child, 1)
229 process(child);
230 igt_waitchildren();
231 }
232
233 igt_subtest("basic-threads")
234 threads(1);
235
236 igt_subtest("process-exit") {
237 igt_fork(child, 768)
238 process(child);
239 igt_waitchildren();
240 }
241
242 igt_subtest("gem-close-race")
243 threads(150);
244
245 igt_fixture
246 igt_stop_hang_detector();
247 }
248