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| author | Takashi Iwai <tiwai@suse.de> | 2024-10-02 21:29:16 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-10-02 21:29:16 +0200 |
| commit | 0c436dfe5c25d0931b164b944165259f95e5281f (patch) | |
| tree | 7b1d3d8d7bc600f218af0ca6ed9a4f7527f88e5f /tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c | |
| parent | 3f7f36a4559ef78a6418c5f0447fbfbdcf671956 (diff) | |
| parent | eb1df4bbf53c29babf68fcb36e80d9c62a345257 (diff) | |
| download | linux-next-0c436dfe5c25d0931b164b944165259f95e5281f.tar.gz linux-next-0c436dfe5c25d0931b164b944165259f95e5281f.zip | |
Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.12
A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.
Diffstat (limited to 'tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c')
| -rw-r--r-- | tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c new file mode 100644 index 000000000000..f0b96a4a04b2 --- /dev/null +++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * A scheduler that validates the behavior of direct dispatching with a default + * select_cpu implementation. + * + * Copyright (c) 2023 Meta Platforms, Inc. and affiliates. + * Copyright (c) 2023 David Vernet <dvernet@meta.com> + * Copyright (c) 2023 Tejun Heo <tj@kernel.org> + */ + +#include <scx/common.bpf.h> + +char _license[] SEC("license") = "GPL"; + +s32 BPF_STRUCT_OPS(select_cpu_dispatch_select_cpu, struct task_struct *p, + s32 prev_cpu, u64 wake_flags) +{ + u64 dsq_id = SCX_DSQ_LOCAL; + s32 cpu = prev_cpu; + + if (scx_bpf_test_and_clear_cpu_idle(cpu)) + goto dispatch; + + cpu = scx_bpf_pick_idle_cpu(p->cpus_ptr, 0); + if (cpu >= 0) + goto dispatch; + + dsq_id = SCX_DSQ_GLOBAL; + cpu = prev_cpu; + +dispatch: + scx_bpf_dispatch(p, dsq_id, SCX_SLICE_DFL, 0); + return cpu; +} + +SEC(".struct_ops.link") +struct sched_ext_ops select_cpu_dispatch_ops = { + .select_cpu = select_cpu_dispatch_select_cpu, + .name = "select_cpu_dispatch", + .timeout_ms = 1000U, +}; |
