linux-kernel - Re: [PATCH] x86_64: allocate gart aperture from 512M

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Date:	Wed, 16 Apr 2008 11:29:48 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	yhlu.kernel@...il.com
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86_64: allocate gart aperture from 512M


* Yinghai Lu <yhlu.kernel.send@...il.com> wrote:

> [PATCH] x86_64: allocate gart aperture from 512M
> 
> because we try to reserve dma32 early, so we have chance to get 
> aperture from 64M
> 
> with some sequence aperture allocated from RAM, could become 
> E820_RESERVED.
> 
> and then if folling up one kexec one big kernel that uncompressed size 
> is above
> 
> 64M could have conflict with still using gart.
> 
> So allocate gart aperture from 512M instead.
> 
> Also change the fallback_aper_order to 5, because we don't have chance 
> to get 2G or 4G aperture.

thanks, applied.

	Ingo
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