From: Andreas Schwab <schwab@suse.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Airlie <airlied@gmail.com>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Linux Fbdev development list
<linux-fbdev-devel@lists.sourceforge.net>
Subject: Re: [PATCH] radeonfb: (#2) Implement proper workarounds for PLL accesses
Date: Fri, 08 Apr 2005 23:11:12 +0200 [thread overview]
Message-ID: <jezmw9ug7j.fsf@sykes.suse.de> (raw)
In-Reply-To: <1112923186.9567.349.camel@gaston> (Benjamin Herrenschmidt's message of "Fri, 08 Apr 2005 11:19:46 +1000")
Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> On Fri, 2005-04-08 at 01:58 +0200, Andreas Schwab wrote:
>> Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
>>
>> > Yes, that's very extreme, I suspect somebody is banging on set_par or
>> > something like that.
>>
>> fb_setcolreg is it.
>
> Ok, what about that patch:
>
> ---
>
> This patch adds to the fbdev interface a set_cmap callback that allow
> the driver to "batch" palette changes. This is useful for drivers like
> radeonfb which might require lenghtly workarounds on palette accesses,
> thus allowing to factor out those workarounds efficiently.
This makes it better. But there is still a delay of half a second, and
there is an annoying flicker when switching from X to the console.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2005-04-08 21:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1110519743.5810.13.camel@gaston>
[not found] ` <1110672745.5787.60.camel@gaston>
[not found] ` <je8y3wyk3g.fsf@sykes.suse.de>
[not found] ` <1112743901.9568.67.camel@gaston>
[not found] ` <jeoecr1qk8.fsf@sykes.suse.de>
[not found] ` <1112827655.9518.194.camel@gaston>
[not found] ` <jehdii8hjk.fsf@sykes.suse.de>
[not found] ` <21d7e9970504071422349426eb@mail.gmail.com>
[not found] ` <1112914795.9568.320.camel@gaston>
[not found] ` <jemzsa6sxg.fsf@sykes.suse.de>
2005-04-08 1:19 ` [PATCH] radeonfb: (#2) Implement proper workarounds for PLL accesses Benjamin Herrenschmidt
2005-04-08 21:11 ` Andreas Schwab [this message]
2005-04-09 0:03 ` Benjamin Herrenschmidt
2005-04-09 16:24 ` Andreas Schwab
2005-04-09 23:33 ` Benjamin Herrenschmidt
2005-04-10 10:05 ` Moritz Muehlenhoff
2005-04-10 22:45 ` Benjamin Herrenschmidt
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