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From: "H. Peter Anvin" <hpa@zytor.com>
To: Jonathan Campbell <jon@nerdgrounds.com>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
	devel@driverdev.osuosl.org
Subject: Re: Vramfs: filesystem driver to utilize extra RAM on VGA devices
Date: Mon, 26 Jan 2009 15:36:57 -0800	[thread overview]
Message-ID: <497E4919.60907@zytor.com> (raw)
In-Reply-To: <497E4531.20800@nerdgrounds.com>

Jonathan Campbell wrote:
> 
> So far I've tested it against 2.6.25.17 and 2.6.28 on both x86 and 
> x86_64 with reads, writes, directory creation, symlink creation, and 
> mmap() and it seems to work fine.
> Just give it a range of memory on the bus, or the 
> domain:bus:device:function numbers of a VGA PCI device, and it will 
> mount the VGA video RAM and allow files to exist there.
> As a special hack: you can also specify the size of the active 
> framebuffer console so that fbcon doesn't collide with this driver 
> (unless you want to see what your files look like splattered across your 
> screen, ha). The active VRAM area becomes a "sentinel" file named 
> "framebuffer".
> 
> What do you guys think?
> 

How is this different from the MTD driver we already have?

	-hpa

  reply	other threads:[~2009-01-26 23:37 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-26 23:20 Vramfs: filesystem driver to utilize extra RAM on VGA devices Jonathan Campbell
2009-01-26 23:36 ` H. Peter Anvin [this message]
2009-01-26 23:50   ` Jonathan Campbell
2009-01-29 17:04     ` Peter W. Morreale
2009-01-29 17:30       ` Jonathan Campbell
2009-01-29 17:38         ` H. Peter Anvin
2009-01-30  3:19           ` Jonathan Campbell
2009-01-30  4:46             ` H. Peter Anvin
2009-01-30  5:20               ` Willy Tarreau
2009-01-30  5:25                 ` H. Peter Anvin
2009-01-27  2:59 ` Mark Knecht
2009-01-27  4:44   ` Eric Anholt
2009-01-27 17:37     ` Mark Knecht
2009-01-27 21:23       ` Eric Anholt
2009-01-28  6:36         ` Jonathan Campbell
2009-01-28  7:05           ` Dave Airlie
2009-01-28  9:03             ` Jonathan Campbell
2009-01-28  9:42               ` Dave Airlie
2009-01-27  5:07   ` Jonathan Campbell
2009-01-27 18:18     ` Mark Knecht
     [not found]       ` <497F60A3.6020608@nerdgrounds.com>
2009-01-27 20:49         ` Mark Knecht
2009-01-27 21:15           ` Jonathan Campbell
2009-01-28  6:59 ` Trent Piepho

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