linux-kernel - Re: [git pull] drm patches for 2.6.27-rc1

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Message-ID: <86802c440810182128g392483ddt121157a87301a005@mail.gmail.com>
Date:	Sat, 18 Oct 2008 21:28:37 -0700
From:	"Yinghai Lu" <yinghai@...nel.org>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Keith Packard" <keithp@...thp.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Nick Piggin" <nickpiggin@...oo.com.au>,
	"Dave Airlie" <airlied@...ux.ie>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.sf.net, "Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: [git pull] drm patches for 2.6.27-rc1

On Sat, Oct 18, 2008 at 3:32 PM, Ingo Molnar <mingo@...e.hu> wrote:
>
> (In fact if we installed it into the linear kernel address space, and if
> the aperture is 1GB aligned, we will automatically use gbpages for it.
> Were Intel to support gbpages in the future ;-)
>

we could expand init_memory_mapping to support direct map for them...
with needed prot.
or use set init_memory_mapping() + set_memory_wb() directly.

but that is only for 64bit x86

also someone is talking about to have 6 pcie display adapters on 64bit
system. and every card will have 4g ram.

32bit could use fix map for 1G or 2G mapping.

YH
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