From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [PATCH 0/3] fb accel capabilities (aka fast radeon fb, the right way) Date: Fri, 14 May 2004 08:52:58 +1000 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <1084488777.29107.114.camel@gaston> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1BOP72-0007SM-GM for linux-fbdev-devel@lists.sourceforge.net; Thu, 13 May 2004 15:55:36 -0700 Received: from gate.crashing.org ([63.228.1.57] ident=root) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:AES256-SHA:256) (Exim 4.30) id 1BOP72-0005T0-7x for linux-fbdev-devel@lists.sourceforge.net; Thu, 13 May 2004 15:55:36 -0700 In-Reply-To: Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: Geert Uytterhoeven Cc: David Eger , Linux Frame Buffer Device Development , James Simmons > Well, we still need a way to know when the fbdev has to reinitialize its accel > engine, when switching the console from graphics mode (user space does accel) > to text mode (kernel uses accel). Currently this is done when FB_ACCELF_TEXT is > set. Current fbcon should do a set_var with FB_ACTIVATE_FORCE (thus forcing a call to set_par) when switching from KD_TEXT to KD_GRAPHICS > BTW, we've been talking about allowing kernel messages (mainly oops and panic) > to show up under X. Since we cannot use the accel engine for that, perhaps we > need different routines for fb_{fillrect,copyarea,imageblit}() for the > accelerated vs. non-accelerated cases? And fbcon could compare the function > pointers, instead of looking at .hwaccel. > > (Yes, I know it's still possible to lock up your card when using unaccelerated > drawing while an accelerated operation is in progress on some cards). Comparing function pointers ? That's evil ;) Ben. ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click