Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755621Ab0HXQbj (ORCPT ); Tue, 24 Aug 2010 12:31:39 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:45153 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754343Ab0HXQbg convert rfc822-to-8bit (ORCPT ); Tue, 24 Aug 2010 12:31:36 -0400 From: "Guzman Lugo, Fernando" To: Felipe Contreras CC: "Kanigeri, Hari" , "linux-omap@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "ohad@wizery.com" , "hiroshi.doyu@nokia.com" , "ameya.palande@nokia.com" , "felipe.contreras@nokia.com" Date: Tue, 24 Aug 2010 11:31:30 -0500 Subject: RE: [PATCH 8/9] dspbridge: add map support for big buffers Thread-Topic: [PATCH 8/9] dspbridge: add map support for big buffers Thread-Index: ActDdGDQAzDtPKYtQE2tJvKG9SvcBgANOCIg Message-ID: <496565EC904933469F292DDA3F1663E602F0FA3883@dlee06.ent.ti.com> References: <1277943660-4112-1-git-send-email-x0095840@ti.com> <1277943660-4112-2-git-send-email-x0095840@ti.com> <1277943660-4112-3-git-send-email-x0095840@ti.com> <1277943660-4112-4-git-send-email-x0095840@ti.com> <1277943660-4112-5-git-send-email-x0095840@ti.com> <1277943660-4112-6-git-send-email-x0095840@ti.com> <1277943660-4112-7-git-send-email-x0095840@ti.com> <1277943660-4112-8-git-send-email-x0095840@ti.com> <1277943660-4112-9-git-send-email-x0095840@ti.com> <8F7AF80515AF0D4D93307E594F3CB40E4CAD34D5@dlee03.ent.ti.com> <496565EC904933469F292DDA3F1663E602CBDD3ADE@dlee06.ent.ti.com> <8F7AF80515AF0D4D93307E594F3CB40E4CAD39F6@dlee03.ent.ti.com> <496565EC904933469F292DDA3F1663E602CBDD3BB2@dlee06.ent.ti.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2016 Lines: 52 > -----Original Message----- > From: Felipe Contreras [mailto:felipe.contreras@gmail.com] > Sent: Tuesday, August 24, 2010 5:09 AM > To: Guzman Lugo, Fernando > Cc: Kanigeri, Hari; linux-omap@vger.kernel.org; > linux-kernel@vger.kernel.org; ohad@wizery.com; > hiroshi.doyu@nokia.com; ameya.palande@nokia.com; > felipe.contreras@nokia.com > Subject: Re: [PATCH 8/9] dspbridge: add map support for big buffers > > On Fri, Jul 2, 2010 at 9:39 PM, Guzman Lugo, Fernando > wrote: > > I think, it would be good if we get rid of DMMPOOL size, if > the liked list grow up as it is needed, there is no memory > penalty of have all the possible iommu addresses valid > (11000000 - FFFFFFFF). The reservation will only fail when > there is no memory. If a software restriction is needed we > could define a start and end addresses for iommu module > (maybe as a parameter when the iommu handle for iva2 is got) > and that boundaries can be taking in account at the moment of > reserve the memory. > > What happened to this? > > IIUC what you are proposing is to remove the DMM pool > completely, that makes sense to me. However, is it really > needed to finish the iommu migration to do this? > > > I think the reserve/unreserved dspbridge api can disappear > and just return the da address in the map function. > > This is something I've proposed before, so I agree :) Yeah, that is how it will be. I have been busy with other stuffs, but now I have finish a version with all dmm module removed and reserve/unreserve Api removed as well. But because a the big # of patches merge in dspbrdge I have to rebase them to the latest, I hope finish this week and send Them again next week. Regards, Fernando. > > -- > Felipe Contreras > -- 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/