1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
4 * Copyright (c) 2024 David Vernet <dvernet@meta.com>
5 */
6 #include <bpf/bpf.h>
7 #include <scx/common.h>
8 #include <unistd.h>
9 #include "dsp_local_on.bpf.skel.h"
10 #include "scx_test.h"
11
setup(void ** ctx)12 static enum scx_test_status setup(void **ctx)
13 {
14 struct dsp_local_on *skel;
15
16 skel = dsp_local_on__open();
17 SCX_FAIL_IF(!skel, "Failed to open");
18 SCX_ENUM_INIT(skel);
19
20 skel->rodata->nr_cpus = libbpf_num_possible_cpus();
21 SCX_FAIL_IF(dsp_local_on__load(skel), "Failed to load skel");
22 *ctx = skel;
23
24 return SCX_TEST_PASS;
25 }
26
run(void * ctx)27 static enum scx_test_status run(void *ctx)
28 {
29 struct dsp_local_on *skel = ctx;
30 struct bpf_link *link;
31
32 link = bpf_map__attach_struct_ops(skel->maps.dsp_local_on_ops);
33 SCX_FAIL_IF(!link, "Failed to attach struct_ops");
34
35 /* Just sleeping is fine, plenty of scheduling events happening */
36 sleep(1);
37
38 bpf_link__destroy(link);
39
40 SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG));
41
42 return SCX_TEST_PASS;
43 }
44
cleanup(void * ctx)45 static void cleanup(void *ctx)
46 {
47 struct dsp_local_on *skel = ctx;
48
49 dsp_local_on__destroy(skel);
50 }
51
52 struct scx_test dsp_local_on = {
53 .name = "dsp_local_on",
54 .description = "Verify we can directly dispatch tasks to a local DSQs "
55 "from ops.dispatch()",
56 .setup = setup,
57 .run = run,
58 .cleanup = cleanup,
59 };
60 REGISTER_SCX_TEST(&dsp_local_on)
61