Re: [PATCH] KMS: Do the actual mode setting from asynchronous context

[Arjan v. de V. <ar...@in...>]

On Fri, 27 Mar 2009 15:57:54 -0700
Jesse Barnes <jb...@vi...> wrote:

> On Mon, 23 Mar 2009 13:46:23 -0700
> Arjan van de Ven <ar...@in...> wrote:
> 
> > >From dfe256fc9d28f240f1a84fb4c3dfed4a4e18d5d4 Mon Sep 17 00:00:00
> > >2001
> > From: Arjan van de Ven <ar...@li...>
> > Date: Mon, 23 Mar 2009 13:32:47 -0700
> > Subject: [PATCH] KMS: Do the actual mode setting from asynchronous
> > context
> > 
> > The mode setting (and the expensive part of mode detection) can take
> > quite a bit of time, and will delay the kernel boot quite a bit.
> > 
> > This patch puts these two parts into async context, so that the
> > normal execution of the system continues while the slow hardware
> > probing and poking happens.
> 
> I'm curious if the patch I recently posted to add the idea of a
> primary head to the driver have a similar effect?  It avoids probing
> secondary connectors if the primary one is found, so it should
> provide the same speedup as this one.

part of (actually the majority of) the improvement is from doing the
actual modeset async.... that is where on my systems most of the time
goes. The probing only applies if you actually connect a vga screen...




-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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