From: Tejun Heo <tj@kernel.org>
To: Andrea Righi <arighi@nvidia.com>
Cc: David Vernet <void@manifault.com>,
Changwoo Min <changwoo@igalia.com>,
Yury Norov <yury.norov@gmail.com>,
Joel Fernandes <joelagnelf@nvidia.com>, Ian May <ianm@nvidia.com>,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH sched_ext/for-6.15] sched_ext: idle: Introduce node-aware idle cpu kfunc helpers
Date: Tue, 18 Feb 2025 09:01:54 -1000 [thread overview]
Message-ID: <Z7TZIvaxzEDD2u9A@slm.duckdns.org> (raw)
In-Reply-To: <20250218180441.63349-1-arighi@nvidia.com>
On Tue, Feb 18, 2025 at 07:04:41PM +0100, Andrea Righi wrote:
> Introduce a new kfunc to retrieve the node associated to a CPU:
>
> int scx_bpf_cpu_node(s32 cpu)
>
> Add the following kfuncs to provide BPF schedulers direct access to
> per-node idle cpumasks information:
>
> const struct cpumask *scx_bpf_get_idle_cpumask_node(int node)
> const struct cpumask *scx_bpf_get_idle_smtmask_node(int node)
> s32 scx_bpf_pick_idle_cpu_node(const cpumask_t *cpus_allowed,
> int node, u64 flags)
> s32 scx_bpf_pick_any_cpu_node(const cpumask_t *cpus_allowed,
> int node, u64 flags)
>
> Moreover, trigger an scx error when any of the non-node aware idle CPU
> kfuncs are used when SCX_OPS_BUILTIN_IDLE_PER_NODE is enabled.
>
> Cc: Yury Norov [NVIDIA] <yury.norov@gmail.com>
> Signed-off-by: Andrea Righi <arighi@nvidia.com>
Applied to sched_ext/for-6.15.
Thanks.
--
tejun
next prev parent reply other threads:[~2025-02-18 19:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-18 18:04 [PATCH sched_ext/for-6.15] sched_ext: idle: Introduce node-aware idle cpu kfunc helpers Andrea Righi
2025-02-18 19:01 ` Tejun Heo [this message]
2025-02-18 19:09 ` Yury Norov
2025-02-18 19:11 ` Tejun Heo
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