linux-kernel - Re: [PATCH v3 02/13] x86/acpi: Add a helper function to get a pointer to the wakeup mailbox

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Message-ID: <20250506052300.GE25533@ranerica-svr.sc.intel.com>
Date: Mon, 5 May 2025 22:23:00 -0700
From: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: x86@...nel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Rob Herring <robh@...nel.org>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
	Michael Kelley <mhklinux@...look.com>, devicetree@...r.kernel.org,
	Saurabh Sengar <ssengar@...ux.microsoft.com>,
	Chris Oo <cho@...rosoft.com>, linux-hyperv@...r.kernel.org,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Ravi V. Shankar" <ravi.v.shankar@...el.com>,
	Ricardo Neri <ricardo.neri@...el.com>
Subject: Re: [PATCH v3 02/13] x86/acpi: Add a helper function to get a
 pointer to the wakeup mailbox

On Mon, May 05, 2025 at 11:55:03AM +0200, Rafael J. Wysocki wrote:
> On Sat, May 3, 2025 at 9:10 PM Ricardo Neri
> <ricardo.neri-calderon@...ux.intel.com> wrote:
> >
> > In preparation to move the functionality to wake secondary CPUs up out
> > of the ACPI code, add a helper function to get a pointer to the mailbox.
> >
> > Use this helper function only in the portions of the code for which the
> > variable acpi_mp_wake_mailbox will be out of scope once it is relocated
> > out of the ACPI directory.
> >
> > The wakeup mailbox is only supported for CONFIG_X86_64 and needed only
> > with CONFIG_SMP.
> >
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
> > ---
> > Changes since v2:
> >  - Introduced this patch.
> 
> Have you considered merging it with the previous patch?  They both do
> analogous things.

Indeed, I can merge these two patches.

Thanks and BR,
Ricardo