1 /*
2 * Copyright © 2009 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 * Eric Anholt <[email protected]>
25 *
26 */
27
28 /**
29 * Roughly simulates repeatedly uploading frames of images, by uploading
30 * the data all at once with pwrite, and then blitting it to another buffer.
31 *
32 * You might think of this like a movie player, but that wouldn't be entirely
33 * accurate, since the access patterns of the memory would be different
34 * (generally, smaller source image, upscaled, an thus different memory access
35 * pattern in both texel fetch for the stretching and the destination writes).
36 * However, some things like swfdec would be doing something like this since
37 * they compute their data in host memory and upload the full sw rendered
38 * frame.
39 *
40 * Additionally, those applications should be rendering at the screen refresh
41 * rate, while this test has no limits, and so can get itself into the
42 * working set larger than aperture size performance disaster.
43 *
44 * The current workload doing this path is pixmap upload in 2D with KMS.
45 */
46
47 #include "igt.h"
48 #include <stdlib.h>
49 #include <stdio.h>
50 #include <string.h>
51 #include <assert.h>
52 #include <fcntl.h>
53 #include <inttypes.h>
54 #include <errno.h>
55 #include <sys/stat.h>
56 #include <sys/time.h>
57
58 #define OBJECT_WIDTH 1280
59 #define OBJECT_HEIGHT 720
60
61 static double
get_time_in_secs(void)62 get_time_in_secs(void)
63 {
64 struct timeval tv;
65
66 gettimeofday(&tv, NULL);
67
68 return (double)tv.tv_sec + tv.tv_usec / 1000000.0;
69 }
70
71 static void
do_render(drm_intel_bufmgr * bufmgr,struct intel_batchbuffer * batch,drm_intel_bo * dst_bo,int width,int height)72 do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
73 drm_intel_bo *dst_bo, int width, int height)
74 {
75 uint32_t *data;
76 drm_intel_bo *src_bo;
77 int i;
78 static uint32_t seed = 1;
79
80 src_bo = drm_intel_bo_alloc(bufmgr, "src", width * height * 4, 4096);
81
82 drm_intel_gem_bo_map_gtt(src_bo);
83
84 data = src_bo->virtual;
85 for (i = 0; i < width * height; i++) {
86 data[i] = seed++;
87 }
88
89 drm_intel_gem_bo_unmap_gtt(src_bo);
90
91 /* Render the junk to the dst. */
92 BLIT_COPY_BATCH_START(0);
93 OUT_BATCH((3 << 24) | /* 32 bits */
94 (0xcc << 16) | /* copy ROP */
95 (width * 4) /* dst pitch */);
96 OUT_BATCH(0); /* dst x1,y1 */
97 OUT_BATCH((height << 16) | width); /* dst x2,y2 */
98 OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
99 OUT_BATCH(0); /* src x1,y1 */
100 OUT_BATCH(width * 4); /* src pitch */
101 OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
102 ADVANCE_BATCH();
103
104 intel_batchbuffer_flush(batch);
105
106 drm_intel_bo_unreference(src_bo);
107 }
108
main(int argc,char ** argv)109 int main(int argc, char **argv)
110 {
111 int fd;
112 int object_size = OBJECT_WIDTH * OBJECT_HEIGHT * 4;
113 double start_time, end_time;
114 drm_intel_bo *dst_bo;
115 drm_intel_bufmgr *bufmgr;
116 struct intel_batchbuffer *batch;
117 int i;
118
119 fd = drm_open_driver(DRIVER_INTEL);
120
121 bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
122 drm_intel_bufmgr_gem_enable_reuse(bufmgr);
123
124 batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
125
126 dst_bo = drm_intel_bo_alloc(bufmgr, "dst", object_size, 4096);
127
128 /* Prep loop to get us warmed up. */
129 for (i = 0; i < 60; i++) {
130 do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
131 }
132 drm_intel_bo_wait_rendering(dst_bo);
133
134 /* Do the actual timing. */
135 start_time = get_time_in_secs();
136 for (i = 0; i < 200; i++) {
137 do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
138 }
139 drm_intel_bo_wait_rendering(dst_bo);
140 end_time = get_time_in_secs();
141
142 printf("%d iterations in %.03f secs: %.01f MB/sec\n", i,
143 end_time - start_time,
144 (double)i * OBJECT_WIDTH * OBJECT_HEIGHT * 4 / 1024.0 / 1024.0 /
145 (end_time - start_time));
146
147 intel_batchbuffer_free(batch);
148 drm_intel_bufmgr_destroy(bufmgr);
149
150 close(fd);
151
152 return 0;
153 }
154