linux-kernel - Re: [PATCH 3/3] x86/mm: Separate paging setup from memory mapping

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Message-ID: <CAE9FiQU9hEvaYMhyE4iCGiOtPDKjjC+Jj-jyCADfpH7btV0dNw@mail.gmail.com>
Date:	Sat, 14 Jul 2012 13:47:58 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	mingo@...nel.org, linux-kernel@...r.kernel.org, x86@...nel.org,
	Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 3/3] x86/mm: Separate paging setup from memory mapping

On Sat, Jul 14, 2012 at 6:41 AM, Pekka Enberg <penberg@...nel.org> wrote:
> Move PSE and PGE bit twiddling from init_memory_mapping() to a new
> setup_paging() function to simplify the former function. The
> init_memory_mapping() function is called later in the boot process by
> gart_iommu_init(), efi_ioremap(), and arch_add_memory() which have no
> business whatsover updating the CR4 register.

I have one local patch that will only set that one time too. also do
other page size probe one time.

please check attached one.

Thanks

Yinghai

Download attachment "get_page_size_mask.patch" of type "application/octet-stream" (4696 bytes)