brintos

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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 * Copyright (c) 2024 Tejun Heo <tj@kernel.org>6 */7#include <bpf/bpf.h>8#include <scx/common.h>9#include <sys/wait.h>10#include <unistd.h>11#include "select_cpu_vtime.bpf.skel.h"12#include "scx_test.h"13 14static enum scx_test_status setup(void **ctx)15{16	struct select_cpu_vtime *skel;17 18	skel = select_cpu_vtime__open_and_load();19	SCX_FAIL_IF(!skel, "Failed to open and load skel");20	*ctx = skel;21 22	return SCX_TEST_PASS;23}24 25static enum scx_test_status run(void *ctx)26{27	struct select_cpu_vtime *skel = ctx;28	struct bpf_link *link;29 30	SCX_ASSERT(!skel->bss->consumed);31 32	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_vtime_ops);33	SCX_FAIL_IF(!link, "Failed to attach scheduler");34 35	sleep(1);36 37	SCX_ASSERT(skel->bss->consumed);38 39	bpf_link__destroy(link);40 41	return SCX_TEST_PASS;42}43 44static void cleanup(void *ctx)45{46	struct select_cpu_vtime *skel = ctx;47 48	select_cpu_vtime__destroy(skel);49}50 51struct scx_test select_cpu_vtime = {52	.name = "select_cpu_vtime",53	.description = "Test doing direct vtime-dispatching from "54		       "ops.select_cpu(), to a non-built-in DSQ",55	.setup = setup,56	.run = run,57	.cleanup = cleanup,58};59REGISTER_SCX_TEST(&select_cpu_vtime)60