1 /*
2 * Copyright © 2011-2015 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 <chris@chris-wilson.co.uk>
25 *
26 */
27
28 #include <unistd.h>
29 #include <stdlib.h>
30 #include <stdint.h>
31 #include <stdio.h>
32 #include <string.h>
33 #include <fcntl.h>
34 #include <inttypes.h>
35 #include <errno.h>
36 #include <sys/stat.h>
37 #include <sys/ioctl.h>
38 #include <sys/time.h>
39 #include <time.h>
40
41 #include "drm.h"
42 #include "ioctl_wrappers.h"
43 #include "drmtest.h"
44 #include "igt_aux.h"
45 #include "igt_stats.h"
46 #include "intel_reg.h"
47
48 #define OBJECT_SIZE (1<<23)
49
50 #define LOCAL_I915_EXEC_NO_RELOC (1<<11)
51 #define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
52
elapsed(const struct timespec * start,const struct timespec * end)53 static double elapsed(const struct timespec *start,
54 const struct timespec *end)
55 {
56 return (end->tv_sec - start->tv_sec) + 1e-9*(end->tv_nsec - start->tv_nsec);
57 }
58
make_busy(int fd,uint32_t handle)59 static void make_busy(int fd, uint32_t handle)
60 {
61 struct drm_i915_gem_execbuffer2 execbuf;
62 struct drm_i915_gem_exec_object2 gem_exec;
63
64 const uint32_t buf[] = {MI_BATCH_BUFFER_END};
65 gem_write(fd, handle, 0, buf, sizeof(buf));
66
67 memset(&gem_exec, 0, sizeof(gem_exec));
68 gem_exec.handle = handle;
69
70 memset(&execbuf, 0, sizeof(execbuf));
71 execbuf.buffers_ptr = (uintptr_t)&gem_exec;
72 execbuf.buffer_count = 1;
73 execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT;
74 execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
75 if (__gem_execbuf(fd, &execbuf)) {
76 execbuf.flags = 0;
77 gem_execbuf(fd, &execbuf);
78 }
79 }
80
main(int argc,char ** argv)81 int main(int argc, char **argv)
82 {
83 int fd = drm_open_driver(DRIVER_INTEL);
84 int size = 0;
85 int busy = 0;
86 int reps = 13;
87 int ncpus = 1;
88 int c, n, s;
89
90 while ((c = getopt (argc, argv, "bs:r:f")) != -1) {
91 switch (c) {
92 case 's':
93 size = atoi(optarg);
94 break;
95
96 case 'r':
97 reps = atoi(optarg);
98 if (reps < 1)
99 reps = 1;
100 break;
101
102 case 'f':
103 ncpus = sysconf(_SC_NPROCESSORS_ONLN);
104 break;
105
106 case 'b':
107 busy = true;
108 break;
109
110 default:
111 break;
112 }
113 }
114
115 if (size == 0) {
116 for (s = 4096; s <= OBJECT_SIZE; s <<= 1) {
117 igt_stats_t stats;
118
119 igt_stats_init_with_size(&stats, reps);
120 for (n = 0; n < reps; n++) {
121 struct timespec start, end;
122 uint64_t count = 0;
123
124 clock_gettime(CLOCK_MONOTONIC, &start);
125 do {
126 for (c = 0; c < 1000; c++) {
127 uint32_t handle;
128
129 handle = gem_create(fd, s);
130 gem_set_domain(fd, handle,
131 I915_GEM_DOMAIN_GTT,
132 I915_GEM_DOMAIN_GTT);
133 if (busy)
134 make_busy(fd, handle);
135 gem_close(fd, handle);
136 }
137 count += c;
138 clock_gettime(CLOCK_MONOTONIC, &end);
139 } while (end.tv_sec - start.tv_sec < 2);
140
141 igt_stats_push_float(&stats, count / elapsed(&start, &end));
142 }
143 printf("%f\n", igt_stats_get_trimean(&stats));
144 igt_stats_fini(&stats);
145 }
146 } else {
147 double *shared;
148
149 shared = mmap(0, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
150 for (n = 0; n < reps; n++) {
151 memset(shared, 0, 4096);
152
153 igt_fork(child, ncpus) {
154 struct timespec start, end;
155 uint64_t count = 0;
156
157 clock_gettime(CLOCK_MONOTONIC, &start);
158 do {
159 for (c = 0; c < 1000; c++) {
160 uint32_t handle;
161
162 handle = gem_create(fd, size);
163 gem_set_domain(fd, handle,
164 I915_GEM_DOMAIN_GTT,
165 I915_GEM_DOMAIN_GTT);
166 if (busy)
167 make_busy(fd, handle);
168 gem_close(fd, handle);
169 }
170 count += c;
171 clock_gettime(CLOCK_MONOTONIC, &end);
172 } while (end.tv_sec - start.tv_sec < 2);
173
174 shared[child] = count / elapsed(&start, &end);
175 }
176 igt_waitchildren();
177
178 for (int child = 0; child < ncpus; child++)
179 shared[ncpus] += shared[child];
180
181 printf("%7.3f\n", shared[ncpus]);
182 }
183 }
184
185 return 0;
186 }
187