From: Thierry Reding treding@nvidia.com
This test can be used to purposefully trigger a job timeout.
Signed-off-by: Thierry Reding treding@nvidia.com --- tests/tegra/meson.build | 9 ++ tests/tegra/syncpt-timeout.c | 163 +++++++++++++++++++++++++++++++++++ 2 files changed, 172 insertions(+) create mode 100644 tests/tegra/syncpt-timeout.c
diff --git a/tests/tegra/meson.build b/tests/tegra/meson.build index 8b1b8bf58dd1..4b05569e0971 100644 --- a/tests/tegra/meson.build +++ b/tests/tegra/meson.build @@ -63,3 +63,12 @@ syncpt_wait = executable( link_with : [libdrm, libdrm_tegra, libdrm_test, libdrm_test_tegra], install : with_install_tests, ) + +syncpt_timeout = executable( + 'tegra-syncpt-timeout', + files('syncpt-timeout.c'), + include_directories : [inc_root, inc_drm, inc_tegra], + c_args : warn_c_args, + link_with : [libdrm, libdrm_tegra, libdrm_test, libdrm_test_tegra], + install : with_install_tests, +) diff --git a/tests/tegra/syncpt-timeout.c b/tests/tegra/syncpt-timeout.c new file mode 100644 index 000000000000..fea3665cb126 --- /dev/null +++ b/tests/tegra/syncpt-timeout.c @@ -0,0 +1,163 @@ +/* + * Copyright © 2018 NVIDIA Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +#include "tegra.h" + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + +static int channel_open(struct drm_tegra *drm, + struct drm_tegra_channel **channel) +{ + static const struct { + enum drm_tegra_class class; + const char *name; + } classes[] = { + { DRM_TEGRA_VIC, "VIC" }, + { DRM_TEGRA_GR2D, "GR2D" }, + }; + unsigned int i; + int err; + + for (i = 0; i < ARRAY_SIZE(classes); i++) { + err = drm_tegra_channel_open(drm, classes[i].class, channel); + if (err < 0) { + fprintf(stderr, "failed to open channel to %s: %s\n", + classes[i].name, strerror(-err)); + continue; + } + + break; + } + + return err; +} + +int main(int argc, char *argv[]) +{ + const char *device = "/dev/dri/renderD128"; + struct drm_tegra_syncpoint *syncpt; + struct drm_tegra_channel *channel; + struct drm_tegra_pushbuf *pushbuf; + struct drm_tegra_job *job; + struct drm_tegra *drm; + uint32_t *ptr; + int fd, err; + + if (argc > 1) + device = argv[1]; + + fd = open(device, O_RDWR); + if (fd < 0) { + fprintf(stderr, "open() failed: %s\n", strerror(errno)); + return 1; + } + + err = drm_tegra_new(fd, &drm); + if (err < 0) { + fprintf(stderr, "failed to open Tegra device: %s\n", strerror(-err)); + close(fd); + return 1; + } + + err = drm_tegra_syncpoint_new(drm, &syncpt); + if (err < 0) { + fprintf(stderr, "failed to allocate syncpoint: %s\n", strerror(-err)); + drm_tegra_close(drm); + close(fd); + return 1; + } + + err = channel_open(drm, &channel); + if (err < 0) { + fprintf(stderr, "failed to open channel: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_job_new(channel, &job); + if (err < 0) { + fprintf(stderr, "failed to create job: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_job_get_pushbuf(job, &pushbuf); + if (err < 0) { + fprintf(stderr, "failed to create push buffer: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_pushbuf_begin(pushbuf, 8, &ptr); + if (err < 0) { + fprintf(stderr, "failed to prepare push buffer: %s\n", strerror(-err)); + return 1; + } + + /* + * Empty command streams will be rejected, so we use this as an easy way + * to add something to the command stream. But this could be any other, + * valid command stream. + */ + err = drm_tegra_pushbuf_sync_cond(pushbuf, &ptr, syncpt, + DRM_TEGRA_SYNC_COND_IMMEDIATE); + if (err < 0) { + fprintf(stderr, "failed to push syncpoint: %s\n", strerror(-err)); + return 1; + } + + /* pretend that the syncpoint was incremented a second time */ + err = drm_tegra_pushbuf_sync(pushbuf, syncpt, 1); + if (err < 0) { + fprintf(stderr, "failed to push syncpoint: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_pushbuf_end(pushbuf, ptr); + if (err < 0) { + fprintf(stderr, "failed to update push buffer: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_job_submit(job, NULL); + if (err < 0) { + fprintf(stderr, "failed to submit job: %s\n", strerror(-err)); + return 1; + } + + err = drm_tegra_job_wait(job, 250000); + if (err < 0) { + fprintf(stderr, "failed to wait for job: %s\n", strerror(-err)); + return 1; + } + + drm_tegra_job_free(job); + drm_tegra_channel_close(channel); + drm_tegra_syncpoint_free(syncpt); + drm_tegra_close(drm); + close(fd); + + return 0; +}