From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: multiple separate pci bridges ... From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Benjamin Herrenschmidt Cc: Sven Luther , linuxppc-dev list In-Reply-To: <1074469340.4547.71.camel@gaston> References: <20040118144412.GA6897@iliana> <1074503490.4547.52.camel@gaston> <1074468194.9699.209.camel@thor.asgaard.local> <1074469340.4547.71.camel@gaston> Content-Type: text/plain; charset=UTF-8 Message-Id: <1074470602.9704.235.camel@thor.asgaard.local> Mime-Version: 1.0 Date: Mon, 19 Jan 2004 01:03:22 +0100 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Mon, 2004-01-19 at 00:42, Benjamin Herrenschmidt wrote: > > > > Only the 3D drivers use the IRQ, it's not involved when moving around > > windows. Or do you mean a badly configured IRQ causing a flood or > > something? > > Oh, you don't use the IRQ for throttling the ring ? No, that's only rarely needed anyway, if ever (a while ago, I discovered that the DRM code to detect a full ring had been broken for a while, but it didn't seem to cause any problems :). > Only for VBL ? That, frame throttling (to prevent too many frames getting queued) and waiting for rendering to finish. -- Earthling Michel Dänzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/