Chris Wilson | b68a642 | 2015-11-22 20:50:31 +0000 | [diff] [blame] | 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 | |
| 46 | static double elapsed(const struct timespec *start, |
| 47 | const struct timespec *end) |
| 48 | { |
| 49 | return (end->tv_sec - start->tv_sec) + 1e-9*(end->tv_nsec - start->tv_nsec); |
| 50 | } |
| 51 | |
| 52 | int main(int argc, char **argv) |
| 53 | { |
| 54 | int fd = drm_open_driver(DRIVER_INTEL); |
| 55 | uint32_t cpu_write = 0; |
| 56 | uint32_t gtt_write = 0; |
| 57 | int reps = 13; |
| 58 | int size = 1024*1024; |
| 59 | uint32_t handle; |
| 60 | int c, n; |
| 61 | |
| 62 | while ((c = getopt (argc, argv, "c:g:r:s:")) != -1) { |
| 63 | switch (c) { |
| 64 | case 'c': |
| 65 | cpu_write = *optarg == 'w' ? I915_GEM_DOMAIN_CPU : 0; |
| 66 | break; |
| 67 | case 'g': |
| 68 | gtt_write = *optarg == 'w' ? I915_GEM_DOMAIN_GTT : 0; |
| 69 | break; |
| 70 | |
| 71 | case 'r': |
| 72 | reps = atoi(optarg); |
| 73 | if (reps < 1) |
| 74 | reps = 1; |
| 75 | break; |
| 76 | |
| 77 | case 's': |
| 78 | size = atoi(optarg); |
| 79 | if (size < 4096) |
| 80 | size = 4096; |
| 81 | break; |
| 82 | |
| 83 | default: |
| 84 | break; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | fprintf(stderr, "size=%d, cpu=%d, gtt=%d\n", size, cpu_write, gtt_write); |
| 89 | |
| 90 | handle = gem_create(fd, size); |
| 91 | gem_set_caching(fd, handle, I915_CACHING_NONE); |
| 92 | |
| 93 | for (n = 0; n < reps; n++) { |
| 94 | struct timespec start, end; |
| 95 | uint64_t count = 0; |
| 96 | |
| 97 | gem_set_domain(fd, handle, |
| 98 | I915_GEM_DOMAIN_CPU, |
| 99 | cpu_write); |
| 100 | |
| 101 | clock_gettime(CLOCK_MONOTONIC, &start); |
| 102 | do { |
| 103 | for (c = 0; c < 1000; c++) { |
| 104 | gem_set_domain(fd, handle, |
| 105 | I915_GEM_DOMAIN_GTT, |
| 106 | gtt_write); |
| 107 | gem_set_domain(fd, handle, |
| 108 | I915_GEM_DOMAIN_CPU, |
| 109 | cpu_write); |
| 110 | } |
| 111 | count += c; |
| 112 | clock_gettime(CLOCK_MONOTONIC, &end); |
| 113 | } while (end.tv_sec - start.tv_sec < 2); |
| 114 | |
| 115 | printf("%f\n", count / elapsed(&start, &end)); |
| 116 | } |
| 117 | |
| 118 | return 0; |
| 119 | } |