Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761445AbXHaUMO (ORCPT ); Fri, 31 Aug 2007 16:12:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753619AbXHaUME (ORCPT ); Fri, 31 Aug 2007 16:12:04 -0400 Received: from rv-out-0910.google.com ([209.85.198.188]:4747 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753300AbXHaUMB (ORCPT ); Fri, 31 Aug 2007 16:12:01 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=GuUMmHvt6hKhhVa0jGxjw3xbxrxpQmcB7Q4OXUUvG1OJBomT9upmouB7HNHy2jWfcGeUkj6DX6XiUW1Yh0W8cUGAb4XsPpTmcsFPoSulAW+P5BM3NbY3nOnlxlDTbuYwoQOZitjH7ZyhePxBoqsYKMK76jSbGOyfiRsOPV0fzYI= Message-ID: <8bd0f97a0708311312n78f1c163o20aa17214bfe3702@mail.gmail.com> Date: Fri, 31 Aug 2007 15:12:00 -0500 From: "Mike Frysinger" To: "Adrian McMenamin" Subject: Re: [PATCH] Patch pvr2 driver to allow development of maple bus driver Cc: linux-kernel@vger.kernel.org, linuxsh-dev@lists.sourceforge.net, "Paul Mundt" In-Reply-To: <8b67d60708311306v344e8f00w36dc244fc39df39f@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <8b67d60708311300k3ea67eadod531752cca253bbc@mail.gmail.com> <8b67d60708311306v344e8f00w36dc244fc39df39f@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1011 Lines: 20 On 8/31/07, Adrian McMenamin wrote: > This patch makes the PVR2 VBLANK interrupt on the SEGA Dreamcast > shareable - a small but necessary change to enable ongoing efforts to > develop a driver for the maple bus on the Dreamcast. (Maple is Sega's > proprietary serial interface for the Dreamcast and can be set to > synchronise dma transfers to the VBLANK). > > This has no impact on the performance of the PVR2. sharable implies the interrupt handler checks to see if it actually caused the interrupt ... which it doesnt at the moment ... presumably, you're making it shared because another device will be using that interrupt as well ... so when that other device gets an interrupt, how do you know it's for that device and not PVR2 ? -mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/