From: Pavel Machek <pavel@ucw.cz>
To: Tiago Vignatti <tiago.vignatti@nokia.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>,
Dave Airlie <airlied@redhat.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] vga: drops a documentation regarding the VGA arbiter
Date: Sat, 18 Jul 2009 13:48:17 +0200 [thread overview]
Message-ID: <20090718114817.GD1433@ucw.cz> (raw)
In-Reply-To: <1247576250-16274-3-git-send-email-tiago.vignatti@nokia.com>
> +I. Details and Theory of Operation
> +==================================
> +
> +I.1 vgaarb
> +----------
> +
> +The vgaarb is a module of the Linux Kernel. When it is initially loaded, it
> +scans all PCI devices and add the VGA ones inside the arbitration. The arbiter
and adds?
> +If the device is hot-{un,}plugged, there is a hook inside the module to notify
> +them being added/removed in the system and automatically added/removed in
> +the arbiter.
I don't see who's 'them' here.
> +I.2 libpciaccess
> +----------------
> +
> +To use the vga arbiter char device it was implemented a serie of functions
series?
> +inside the pciaccess library. Two fields were added to struct pci_device for
> +this be possible:
> +
> + /* the type of resource decoded by the device */
> + int vgaarb_rsrc;
> + /* the file descriptor (/dev/vga_arbiter) */
> + int vgaarb_fd;
> +
> +
> +and the functions:
> +
What functions?
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2009-07-18 11:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-14 12:57 [PATCH 0/2] VGA arbiter implementation Tiago Vignatti
2009-07-14 12:57 ` [PATCH 1/2] vga: implements VGA arbitration on Linux Tiago Vignatti
2009-07-14 12:57 ` [PATCH 2/2] vga: drops a documentation regarding the VGA arbiter Tiago Vignatti
2009-07-18 11:48 ` Pavel Machek [this message]
2009-07-19 18:50 ` Vignatti Tiago (Nokia-D/Helsinki)
2009-07-14 14:35 ` [PATCH 1/2] vga: implements VGA arbitration on Linux Alan Cox
2009-07-15 4:43 ` Dave Airlie
2009-07-16 4:25 ` Dave Airlie
2009-07-16 8:48 ` Alan Cox
2009-07-16 10:38 ` Dave Airlie
2009-07-16 16:25 ` Jesse Barnes
2009-07-17 0:22 ` Benjamin Herrenschmidt
2009-07-17 0:20 ` Benjamin Herrenschmidt
2009-07-17 5:00 ` Dave Airlie
2009-07-17 5:12 ` Benjamin Herrenschmidt
2009-07-14 16:15 ` Greg KH
2009-07-16 3:54 ` Dave Airlie
2009-07-16 4:02 ` Greg KH
2009-07-16 4:06 ` Dave Airlie
2009-07-16 8:41 ` Alan Cox
2009-07-17 0:24 ` Benjamin Herrenschmidt
2009-07-17 0:23 ` Benjamin Herrenschmidt
2009-07-18 11:47 ` Pavel Machek
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