2 * Copyright © 2011 Intel Corporation
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:
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
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
24 * Chris Wilson <chris@chris-wilson.co.uk>
38 #include <sys/ioctl.h>
44 #include "intel_gpu_tools.h"
46 #define LOCAL_I915_EXEC_VEBOX (4<<0)
48 static double elapsed(const struct timeval *start,
49 const struct timeval *end,
52 return (1e6*(end->tv_sec - start->tv_sec) + (end->tv_usec - start->tv_usec))/loop;
55 static int exec(int fd, uint32_t handle, int loops, unsigned ring_id)
57 struct drm_i915_gem_execbuffer2 execbuf;
58 struct drm_i915_gem_exec_object2 gem_exec[1];
61 gem_exec[0].handle = handle;
62 gem_exec[0].relocation_count = 0;
63 gem_exec[0].relocs_ptr = 0;
64 gem_exec[0].alignment = 0;
65 gem_exec[0].offset = 0;
66 gem_exec[0].flags = 0;
67 gem_exec[0].rsvd1 = 0;
68 gem_exec[0].rsvd2 = 0;
70 execbuf.buffers_ptr = (uintptr_t)gem_exec;
71 execbuf.buffer_count = 1;
72 execbuf.batch_start_offset = 0;
73 execbuf.batch_len = 8;
74 execbuf.cliprects_ptr = 0;
75 execbuf.num_cliprects = 0;
78 execbuf.flags = ring_id;
79 i915_execbuffer2_set_context_id(execbuf, 0);
82 while (loops-- && ret == 0) {
84 DRM_IOCTL_I915_GEM_EXECBUFFER2,
92 static void loop(int fd, uint32_t handle, unsigned ring_id, const char *ring_name)
96 for (count = 1; count <= SLOW_QUICK(1<<17, 1<<4); count <<= 1) {
97 struct timeval start, end;
99 gettimeofday(&start, NULL);
100 if (exec(fd, handle, count, ring_id))
102 gettimeofday(&end, NULL);
103 printf("Time to exec x %d: %7.3fµs (ring=%s)\n",
104 count, elapsed(&start, &end, count), ring_name);
109 int main(int argc, char **argv)
111 uint32_t batch[2] = {MI_BATCH_BUFFER_END};
115 igt_subtest_init(argc, argv);
119 handle = gem_create(fd, 4096);
120 gem_write(fd, handle, 0, batch, sizeof(batch));
122 igt_subtest("render")
123 loop(fd, handle, I915_EXEC_RENDER, "render");
126 if (gem_check_blt(fd))
127 loop(fd, handle, I915_EXEC_BSD, "bsd");
130 if (gem_check_blt(fd))
131 loop(fd, handle, I915_EXEC_BLT, "blt");
134 if (gem_check_vebox(fd))
135 loop(fd, handle, LOCAL_I915_EXEC_VEBOX, "vebox");
137 gem_close(fd, handle);