From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: radeon, apertures & memory mapping Date: Sun, 13 Mar 2005 17:10:37 -0500 Message-ID: <9e47339105031314101c89e50e@mail.gmail.com> References: <1110677744.19810.80.camel@gaston> <20050313082216.GA7362@sci.fi> <1110705646.14684.126.camel@gaston> <20050313103936.GA11002@sci.fi> <1110715499.14684.132.camel@gaston> <9e473391050313081937cde207@mail.gmail.com> <1110750553.5787.155.camel@gaston> Reply-To: Jon Smirl Mime-Version: 1.0 Content-Transfer-Encoding: 7bit In-Reply-To: <1110750553.5787.155.camel@gaston> Sender: dri-devel-admin@lists.sourceforge.net Errors-To: dri-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: Benjamin Herrenschmidt Cc: =?ISO-8859-1?Q?Ville_Syrj=E4l=E4?= , Jon Smirl , dri-devel@lists.sourceforge.net, Linux Fbdev development list , xorg@lists.freedesktop.org On Mon, 14 Mar 2005 08:49:13 +1100, Benjamin Herrenschmidt wrote: > > If you are doing fallback calculations in a 6MB buffer that is 1,500 > > pages. Accessing all of this effectively flushes the data cache. Once > > you are done with it you probably don't want those pages in the cache > > anyway. > > I wouldn't count on it flushing anything I meant flushes out everything except the 1,500 pages you just accessed. Since you don't want those pages any more a total cache flush shouldn't make a difference, you don't want any of these pages in the cache anyway. > > Ben. > > -- Jon Smirl jonsmirl@gmail.com ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click --