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From: Andi Kleen <>
To: "Yinghai Lu" <>
Cc: "Ingo Molnar" <>,
	"Andrew Morton" <>,
	"Thomas Gleixner" <>,
	"H. Peter Anvin" <>,
	"kernel list" <>
Subject: Re: [PATCH] x86_64: reserve dma32 early for gart
Date: Sat, 8 Mar 2008 00:20:50 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Saturday 08 March 2008 00:02:50 Yinghai Lu wrote:

>solution will be:
>1. make memmap allocation get memory above 4G...
>2. reserve some dma32 range early before we try to set up memmap for all.
>and release that before pci_iommu_alloc, so gart or swiotlb could get some
>range under 4g limit for sure.

Funny we had (1) before vmemmap for some time, but it looks like
that regressed with vmemmap Anyways I think (1) alone should be enough, is (2) 
really needed?


  reply	other threads:[~2008-03-07 23:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-07 23:02 Yinghai Lu
2008-03-07 23:20 ` Andi Kleen [this message]
2008-03-08  1:45   ` Yinghai Lu

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