linux-kernel - Re: [PATCH v3 0/3] x86/fpu: Allow the In-Field Scan driver to initialize FPU state

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Message-ID: <676bfc09-c1f4-9272-a198-3fb865868c10@linux.intel.com>
Date: Mon, 3 Jun 2024 13:11:16 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: "Chang S. Bae" <chang.seok.bae@...el.com>
cc: LKML <linux-kernel@...r.kernel.org>, x86@...nel.org, 
    platform-driver-x86@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com, 
    bp@...en8.de, dave.hansen@...ux.intel.com, 
    Hans de Goede <hdegoede@...hat.com>, tony.luck@...el.com, 
    ashok.raj@...el.com, jithu.joseph@...el.com, 
    sathyanarayanan.kuppuswamy@...ux.intel.com
Subject: Re: [PATCH v3 0/3] x86/fpu: Allow the In-Field Scan driver to
 initialize FPU state

On Thu, 30 May 2024, Chang S. Bae wrote:

> This revision switches to a new approach by providing a helper to
> initialize user FPU states for the driver, which is considerably simpler.
> This approach could serve as an example for addressing similar situations
> from a non-critical path.
> 
> I thought fpu_reset_fpregs() as the helper name. There is already one
> with this name. Then, I realized the existing one is a bit misaligned, so
> renamed it first here.
> 
> Thanks to Dave for the reviews and the suggestion.
> 
> Thanks,
> Chang
> 
> The previous postings:
> V2: https://lore.kernel.org/all/20240507235344.249103-1-chang.seok.bae@intel.com
> V1: https://lore.kernel.org/all/20240430212508.105117-1-chang.seok.bae@intel.com
> 
> Chang S. Bae (3):
>   x86/fpu: Rename fpu_reset_fpregs() to fpu_reset_fpstate_regs()
>   x86/fpu: Allow FPU users to initialize FPU state
>   platform/x86/intel/ifs: Initialize FPU states for the scan test
> 
>  arch/x86/include/asm/fpu/api.h           |  2 ++
>  arch/x86/kernel/fpu/core.c               | 17 ++++++++++++++---
>  drivers/platform/x86/intel/ifs/ifs.h     |  1 +
>  drivers/platform/x86/intel/ifs/runtest.c |  7 +++++++
>  4 files changed, 24 insertions(+), 3 deletions(-)

Acked-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>

Do x86 maintainers plan to take these through their tree?

-- 
 i.