linux-kernel - Re: [PATCH 1/2] vga: implements VGA arbitration on Linux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 17 Jul 2009 10:22:15 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Dave Airlie <airlied@...il.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Tiago Vignatti <tiago.vignatti@...ia.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Dave Airlie <airlied@...hat.com>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] vga: implements VGA arbitration on Linux

On Thu, 2009-07-16 at 20:38 +1000, Dave Airlie wrote:
> Oops yes I want to avoid doing anything except VGA resources on/off
> I don't think the granularity matters, will talk to BenH tomorrow see
> what his original idea was.

Well, it's more than VGA on/off... if your card decodes VGA, then it's
all memory (or IO) resources on/off...

I -think- it may be that I split memory and IO with the idea that DRM
mostly don't need IO for irqs etc... and so we could technically steal
only IO for some things, like VGA based mode switching on the other
card, without disturbing the guy next door.

Cheers,
Ben.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/