Re: [PATCH v7 07/12] platform/x86: hfi: add online and offline callback support
From: Peter Zijlstra
Date: Mon Dec 02 2024 - 06:39:17 EST
On Sat, Nov 30, 2024 at 08:06:58AM -0600, Mario Limonciello wrote:
> @@ -340,6 +416,11 @@ static int amd_hfi_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> + ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/amd_hfi:online",
> + amd_hfi_online, amd_hfi_offline);
By using online notifier, you will already have tasks running on this
CPU before you initialize the HFI bits, is that okay?