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 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 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 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