tests/tegra/syncpt-wait.c

   1 /*
   2  * Copyright © 2018 NVIDIA 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 shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include <errno.h>
  24 #include <fcntl.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28
  29 #include "tegra.h"
  30
  31 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
  32
  33 static int channel_open(struct drm_tegra *drm,
  34                         struct drm_tegra_channel **channel)
  35 {
  36     static const struct {
  37         enum drm_tegra_class class;
  38         const char *name;
  39     } classes[] = {
  40         { DRM_TEGRA_VIC,  "VIC"  },
  41         { DRM_TEGRA_GR2D, "GR2D" },
  42     };
  43     unsigned int i;
  44     int err;
  45
  46     for (i = 0; i < ARRAY_SIZE(classes); i++) {
  47         err = drm_tegra_channel_open(drm, classes[i].class, channel);
  48         if (err < 0) {
  49             fprintf(stderr, "failed to open channel to %s: %s\n",
  50                     classes[i].name, strerror(-err));
  51             continue;
  52         }
  53
  54         break;
  55     }
  56
  57     return err;
  58 }
  59
  60 int main(int argc, char *argv[])
  61 {
  62     const char *device = "/dev/dri/renderD128";
  63     struct drm_tegra_syncpoint *syncpt;
  64     struct drm_tegra_channel *channel;
  65     struct drm_tegra_pushbuf *pushbuf;
  66     struct drm_tegra_job *job;
  67     struct drm_tegra *drm;
  68     uint32_t *ptr;
  69     int fd, err;
  70
  71     if (argc > 1)
  72         device = argv[1];
  73
  74     fd = open(device, O_RDWR);
  75     if (fd < 0) {
  76         fprintf(stderr, "open() failed: %s\n", strerror(errno));
  77         return 1;
  78     }
  79
  80     err = drm_tegra_new(fd, &drm);
  81     if (err < 0) {
  82         fprintf(stderr, "failed to open Tegra device: %s\n", strerror(-err));
  83         close(fd);
  84         return 1;
  85     }
  86
  87     err = drm_tegra_syncpoint_new(drm, &syncpt);
  88     if (err < 0) {
  89         fprintf(stderr, "failed to allocate syncpoint: %s\n", strerror(-err));
  90         drm_tegra_close(drm);
  91         close(fd);
  92         return 1;
  93     }
  94
  95     err = channel_open(drm, &channel);
  96     if (err < 0) {
  97         fprintf(stderr, "failed to open channel: %s\n", strerror(-err));
  98         return 1;
  99     }
 100
 101     err = drm_tegra_job_new(channel, &job);
 102     if (err < 0) {
 103         fprintf(stderr, "failed to create job: %s\n", strerror(-err));
 104         return 1;
 105     }
 106
 107     err = drm_tegra_job_get_pushbuf(job, &pushbuf);
 108     if (err < 0) {
 109         fprintf(stderr, "failed to create push buffer: %s\n", strerror(-err));
 110         return 1;
 111     }
 112
 113     err = drm_tegra_pushbuf_begin(pushbuf, 4, &ptr);
 114     if (err < 0) {
 115         fprintf(stderr, "failed to prepare push buffer: %s\n", strerror(-err));
 116         return 1;
 117     }
 118
 119     err = drm_tegra_pushbuf_sync_cond(pushbuf, &ptr, syncpt,
 120                                       DRM_TEGRA_SYNC_COND_IMMEDIATE);
 121     if (err < 0) {
 122         fprintf(stderr, "failed to push syncpoint: %s\n", strerror(-err));
 123         return 1;
 124     }
 125
 126     err = drm_tegra_pushbuf_end(pushbuf, ptr);
 127     if (err < 0) {
 128         fprintf(stderr, "failed to update push buffer: %s\n", strerror(-err));
 129         return 1;
 130     }
 131
 132     err = drm_tegra_job_submit(job, NULL);
 133     if (err < 0) {
 134         fprintf(stderr, "failed to submit job: %s\n", strerror(-err));
 135         return 1;
 136     }
 137
 138     err = drm_tegra_job_wait(job, 250000000);
 139     if (err < 0) {
 140         fprintf(stderr, "failed to wait for job: %s\n", strerror(-err));
 141         return 1;
 142     }
 143
 144     drm_tegra_job_free(job);
 145     drm_tegra_channel_close(channel);
 146     drm_tegra_syncpoint_free(syncpt);
 147     drm_tegra_close(drm);
 148     close(fd);
 149
 150     return 0;
 151 }