1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2025 Andrea Righi <arighi@nvidia.com>
4  */
5 #include <bpf/bpf.h>
6 #include <scx/common.h>
7 #include <sys/wait.h>
8 #include <unistd.h>
9 #include "numa.bpf.skel.h"
10 #include "scx_test.h"
11 
setup(void ** ctx)12 static enum scx_test_status setup(void **ctx)
13 {
14 	struct numa *skel;
15 
16 	skel = numa__open();
17 	SCX_FAIL_IF(!skel, "Failed to open");
18 	SCX_ENUM_INIT(skel);
19 	skel->rodata->__COMPAT_SCX_PICK_IDLE_IN_NODE = SCX_PICK_IDLE_IN_NODE;
20 	skel->struct_ops.numa_ops->flags = SCX_OPS_BUILTIN_IDLE_PER_NODE;
21 	SCX_FAIL_IF(numa__load(skel), "Failed to load skel");
22 
23 	*ctx = skel;
24 
25 	return SCX_TEST_PASS;
26 }
27 
run(void * ctx)28 static enum scx_test_status run(void *ctx)
29 {
30 	struct numa *skel = ctx;
31 	struct bpf_link *link;
32 
33 	link = bpf_map__attach_struct_ops(skel->maps.numa_ops);
34 	SCX_FAIL_IF(!link, "Failed to attach scheduler");
35 
36 	/* Just sleeping is fine, plenty of scheduling events happening */
37 	sleep(1);
38 
39 	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_NONE));
40 	bpf_link__destroy(link);
41 
42 	return SCX_TEST_PASS;
43 }
44 
cleanup(void * ctx)45 static void cleanup(void *ctx)
46 {
47 	struct numa *skel = ctx;
48 
49 	numa__destroy(skel);
50 }
51 
52 struct scx_test numa = {
53 	.name = "numa",
54 	.description = "Verify NUMA-aware functionalities",
55 	.setup = setup,
56 	.run = run,
57 	.cleanup = cleanup,
58 };
59 REGISTER_SCX_TEST(&numa)
60