1 /*
2 * Copyright © 2011 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 <unistd.h>
30 #include <stdlib.h>
31 #include <stdint.h>
32 #include <stdio.h>
33 #include <string.h>
34 #include <fcntl.h>
35 #include <inttypes.h>
36 #include <errno.h>
37 #include <sys/stat.h>
38 #include <sys/ioctl.h>
39 #include <sys/time.h>
40 #include <time.h>
41 #include "drm.h"
42
43 #define LOCAL_I915_EXEC_NO_RELOC (1<<11)
44 #define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
45
46 #define LOCAL_I915_EXEC_BSD_SHIFT (13)
47 #define LOCAL_I915_EXEC_BSD_MASK (3 << LOCAL_I915_EXEC_BSD_SHIFT)
48
49 #define ENGINE_FLAGS (I915_EXEC_RING_MASK | LOCAL_I915_EXEC_BSD_MASK)
50
elapsed(const struct timespec * start,const struct timespec * end)51 static double elapsed(const struct timespec *start, const struct timespec *end)
52 {
53 return ((end->tv_sec - start->tv_sec) +
54 (end->tv_nsec - start->tv_nsec)*1e-9);
55 }
56
57 #define LEAK 0x1
58
all(int fd,unsigned flags,int timeout,int ncpus)59 static void all(int fd, unsigned flags, int timeout, int ncpus)
60 {
61 const uint32_t bbe = MI_BATCH_BUFFER_END;
62 struct drm_i915_gem_execbuffer2 execbuf;
63 struct drm_i915_gem_exec_object2 obj;
64 unsigned engines[16];
65 unsigned nengine;
66 unsigned engine;
67
68 nengine = 0;
69 for_each_physical_engine(fd, engine)
70 engines[nengine++] = engine;
71 igt_require(nengine);
72
73 memset(&obj, 0, sizeof(obj));
74 obj.handle = gem_create(fd, 4096);
75 gem_write(fd, obj.handle, 0, &bbe, sizeof(bbe));
76
77 memset(&execbuf, 0, sizeof(execbuf));
78 execbuf.buffers_ptr = to_user_pointer(&obj);
79 execbuf.buffer_count = 1;
80 execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT;
81 execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
82 if (__gem_execbuf(fd, &execbuf)) {
83 execbuf.flags = 0;
84 gem_execbuf(fd, &execbuf);
85 }
86 gem_sync(fd, obj.handle);
87 gem_close(fd, obj.handle);
88
89 intel_detect_and_clear_missed_interrupts(fd);
90 igt_fork(child, ncpus) {
91 struct timespec start, now;
92 unsigned long count;
93 double time;
94
95 count = 0;
96 clock_gettime(CLOCK_MONOTONIC, &start);
97 do {
98 for (int loop = 0; loop < 1024; loop++) {
99 for (int n = 0; n < nengine; n++) {
100 obj.handle = gem_create(fd, 4096);
101 gem_write(fd, obj.handle, 0, &bbe, sizeof(bbe));
102 execbuf.flags &= ~ENGINE_FLAGS;
103 execbuf.flags |= engines[n];
104 gem_execbuf(fd, &execbuf);
105 if (flags & LEAK)
106 gem_madvise(fd, obj.handle, I915_MADV_DONTNEED);
107 else
108 gem_close(fd, obj.handle);
109 }
110 }
111 count += nengine * 1024;
112 clock_gettime(CLOCK_MONOTONIC, &now);
113 } while (elapsed(&start, &now) < timeout); /* Hang detection ~120s */
114 obj.handle = gem_create(fd, 4096);
115 gem_write(fd, obj.handle, 0, &bbe, sizeof(bbe));
116 for (int n = 0; n < nengine; n++) {
117 execbuf.flags &= ~ENGINE_FLAGS;
118 execbuf.flags |= engines[n];
119 gem_execbuf(fd, &execbuf);
120 }
121 gem_sync(fd, obj.handle);
122 gem_close(fd, obj.handle);
123 clock_gettime(CLOCK_MONOTONIC, &now);
124
125 time = elapsed(&start, &now) / count;
126 igt_info("[%d] All (%d engines): %'lu cycles, average %.3fus per cycle\n",
127 child, nengine, count, 1e6*time);
128 }
129 igt_waitchildren();
130 igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
131 }
132
133 igt_main
134 {
135 const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
136 int device = -1;
137
138 igt_fixture {
139 device = drm_open_driver(DRIVER_INTEL);
140 igt_require_gem(device);
141
142 igt_fork_hang_detector(device);
143 }
144
145 igt_subtest("basic")
146 all(device, 0, 5, 1);
147 igt_subtest("forked")
148 all(device, 0, 150, ncpus);
149
150 igt_subtest("madvise")
151 all(device, LEAK, 20, 1);
152
153
154 igt_fixture {
155 igt_stop_hang_detector();
156 close(device);
157 }
158 }
159