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Tue, 1 Sep 2020 08:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973779; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=UvqMRf/V4bYGUnXRFYzHR0MoWszTvt72MUDJlkPgLVL7Z5C9ghIwUJJ5HYM5kfJ3n 5VYFPt986TvN+zbqjMT6pkl+t9bvzRZjP81gXVEMiUig/anUDkmm0cM9tI1gLXtLCF UIwKWRUmpM4JixpLzQm9dVgj9tnlX6pm+UJWHqoc= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U-JPs2CIcW43; Tue, 1 Sep 2020 08:22:58 -0700 (PDT) Received: from [153.66.254.174] (c-73-35-198-56.hsd1.wa.comcast.net [73.35.198.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 8B8B18EE0F5; Tue, 1 Sep 2020 08:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973778; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=QlglmDYfmn+LUmPHNl9G1vxZ4WANgTGEDBcv3VoTq5jkCobGzHRwV7MDXP/8CkPRF DlnAvyJzmngr5D0/wC86DqyXRPVdp/OwUQc4zsVd3Mrk54apOxtDVbGKnBnOuqrFqS /e8+ps58Vp9230FkQlqzYQQbltdvuVP33ee7Vxcw= Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling From: James Bottomley To: Matthew Wilcox Date: Tue, 01 Sep 2020 08:22:56 -0700 In-Reply-To: <20200901150554.GN14765@casper.infradead.org> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: alsa-devel@alsa-project.org, linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Marek Szyprowski , linux-samsung-soc@vger.kernel.org, Joonyoung Shim , linux-scsi@vger.kernel.org, Kyungmin Park , Ben Skeggs , Matt Porter , linux-media@vger.kernel.org, Tom Lendacky , Pawel Osciak , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, Seung-Woo Kim , linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDB06C433E7 for ; Tue, 1 Sep 2020 16:57:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F907206C0 for ; Tue, 1 Sep 2020 16:57:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="UvqMRf/V"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="QlglmDYf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729756AbgIAPXD (ORCPT ); Tue, 1 Sep 2020 11:23:03 -0400 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:42978 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729348AbgIAPXB (ORCPT ); Tue, 1 Sep 2020 11:23:01 -0400 Received: from localhost (localhost [127.0.0.1]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id 0E0068EE187; Tue, 1 Sep 2020 08:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973779; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=UvqMRf/V4bYGUnXRFYzHR0MoWszTvt72MUDJlkPgLVL7Z5C9ghIwUJJ5HYM5kfJ3n 5VYFPt986TvN+zbqjMT6pkl+t9bvzRZjP81gXVEMiUig/anUDkmm0cM9tI1gLXtLCF UIwKWRUmpM4JixpLzQm9dVgj9tnlX6pm+UJWHqoc= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U-JPs2CIcW43; Tue, 1 Sep 2020 08:22:58 -0700 (PDT) Received: from [153.66.254.174] (c-73-35-198-56.hsd1.wa.comcast.net [73.35.198.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 8B8B18EE0F5; Tue, 1 Sep 2020 08:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973778; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=QlglmDYfmn+LUmPHNl9G1vxZ4WANgTGEDBcv3VoTq5jkCobGzHRwV7MDXP/8CkPRF DlnAvyJzmngr5D0/wC86DqyXRPVdp/OwUQc4zsVd3Mrk54apOxtDVbGKnBnOuqrFqS /e8+ps58Vp9230FkQlqzYQQbltdvuVP33ee7Vxcw= Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling From: James Bottomley To: Matthew Wilcox Cc: Christoph Hellwig , Mauro Carvalho Chehab , Thomas Bogendoerfer , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Ben Skeggs , Pawel Osciak , Marek Szyprowski , Matt Porter , iommu@lists.linux-foundation.org, Tom Lendacky , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, netdev@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-mm@kvack.org, alsa-devel@alsa-project.org Date: Tue, 01 Sep 2020 08:22:56 -0700 In-Reply-To: <20200901150554.GN14765@casper.infradead.org> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Date: Tue, 01 Sep 2020 15:22:56 +0000 Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling Message-Id: <1598973776.4238.11.camel@HansenPartnership.com> List-Id: References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> In-Reply-To: <20200901150554.GN14765@casper.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Matthew Wilcox Cc: Christoph Hellwig , Mauro Carvalho Chehab , Thomas Bogendoerfer , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Ben Skeggs , Pawel Osciak , Marek Szyprowski , Matt Porter , iommu@lists.linux-foundation.org, Tom Lendacky , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, netdev@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-mm@kvack.org, alsa-devel@alsa-project.org On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55C1AC433E6 for ; Tue, 1 Sep 2020 15:23:04 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 252D0207D3 for ; Tue, 1 Sep 2020 15:23:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="UvqMRf/V"; 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Tue, 1 Sep 2020 15:23:03 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2560DC0051 for ; Tue, 1 Sep 2020 15:23:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 1328486FB5 for ; Tue, 1 Sep 2020 15:23:02 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id d-iPw3xSoE32 for ; Tue, 1 Sep 2020 15:23:01 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from bedivere.hansenpartnership.com (bedivere.hansenpartnership.com [66.63.167.143]) by hemlock.osuosl.org (Postfix) with ESMTPS id 3E0A886FAA for ; Tue, 1 Sep 2020 15:23:01 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id 0E0068EE187; Tue, 1 Sep 2020 08:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973779; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=UvqMRf/V4bYGUnXRFYzHR0MoWszTvt72MUDJlkPgLVL7Z5C9ghIwUJJ5HYM5kfJ3n 5VYFPt986TvN+zbqjMT6pkl+t9bvzRZjP81gXVEMiUig/anUDkmm0cM9tI1gLXtLCF UIwKWRUmpM4JixpLzQm9dVgj9tnlX6pm+UJWHqoc= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U-JPs2CIcW43; Tue, 1 Sep 2020 08:22:58 -0700 (PDT) Received: from [153.66.254.174] (c-73-35-198-56.hsd1.wa.comcast.net [73.35.198.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 8B8B18EE0F5; Tue, 1 Sep 2020 08:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973778; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=QlglmDYfmn+LUmPHNl9G1vxZ4WANgTGEDBcv3VoTq5jkCobGzHRwV7MDXP/8CkPRF DlnAvyJzmngr5D0/wC86DqyXRPVdp/OwUQc4zsVd3Mrk54apOxtDVbGKnBnOuqrFqS /e8+ps58Vp9230FkQlqzYQQbltdvuVP33ee7Vxcw= Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling From: James Bottomley To: Matthew Wilcox Date: Tue, 01 Sep 2020 08:22:56 -0700 In-Reply-To: <20200901150554.GN14765@casper.infradead.org> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Cc: alsa-devel@alsa-project.org, linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , linux-samsung-soc@vger.kernel.org, Joonyoung Shim , linux-scsi@vger.kernel.org, Kyungmin Park , Ben Skeggs , Matt Porter , linux-media@vger.kernel.org, Tom Lendacky , Pawel Osciak , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, Seung-Woo Kim , linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9ED4C433E7 for ; Tue, 1 Sep 2020 15:23:11 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9A0F621582 for ; Tue, 1 Sep 2020 15:23:11 +0000 (UTC) Authentication-Results: mail.kernel.org; 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s=20151216; t=1598973779; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=UvqMRf/V4bYGUnXRFYzHR0MoWszTvt72MUDJlkPgLVL7Z5C9ghIwUJJ5HYM5kfJ3n 5VYFPt986TvN+zbqjMT6pkl+t9bvzRZjP81gXVEMiUig/anUDkmm0cM9tI1gLXtLCF UIwKWRUmpM4JixpLzQm9dVgj9tnlX6pm+UJWHqoc= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U-JPs2CIcW43; Tue, 1 Sep 2020 08:22:58 -0700 (PDT) Received: from [153.66.254.174] (c-73-35-198-56.hsd1.wa.comcast.net [73.35.198.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 8B8B18EE0F5; Tue, 1 Sep 2020 08:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973778; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=QlglmDYfmn+LUmPHNl9G1vxZ4WANgTGEDBcv3VoTq5jkCobGzHRwV7MDXP/8CkPRF DlnAvyJzmngr5D0/wC86DqyXRPVdp/OwUQc4zsVd3Mrk54apOxtDVbGKnBnOuqrFqS /e8+ps58Vp9230FkQlqzYQQbltdvuVP33ee7Vxcw= Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling From: James Bottomley To: Matthew Wilcox Date: Tue, 01 Sep 2020 08:22:56 -0700 In-Reply-To: <20200901150554.GN14765@casper.infradead.org> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200901_112301_654062_213610C3 X-CRM114-Status: GOOD ( 18.59 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Marek Szyprowski , linux-samsung-soc@vger.kernel.org, Joonyoung Shim , linux-scsi@vger.kernel.org, Kyungmin Park , Ben Skeggs , Matt Porter , linux-media@vger.kernel.org, Tom Lendacky , Pawel Osciak , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, Seung-Woo Kim , linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling Date: Tue, 01 Sep 2020 08:22:56 -0700 Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20200901150554.GN14765@casper.infradead.org> Sender: linux-parisc-owner@vger.kernel.org To: Matthew Wilcox Cc: Christoph Hellwig , Mauro Carvalho Chehab , Thomas Bogendoerfer , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Ben Skeggs , Pawel Osciak , Marek Szyprowski , Matt Porter , iommu@lists.linux-foundation.org, Tom Lendacky , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, netdev@vger.ke List-Id: nouveau.vger.kernel.org On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A632C433E6 for ; Tue, 1 Sep 2020 15:24:14 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D7E86214F1 for ; Tue, 1 Sep 2020 15:24:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="EEySLqHv"; 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s=20151216; t=1598973779; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=UvqMRf/V4bYGUnXRFYzHR0MoWszTvt72MUDJlkPgLVL7Z5C9ghIwUJJ5HYM5kfJ3n 5VYFPt986TvN+zbqjMT6pkl+t9bvzRZjP81gXVEMiUig/anUDkmm0cM9tI1gLXtLCF UIwKWRUmpM4JixpLzQm9dVgj9tnlX6pm+UJWHqoc= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U-JPs2CIcW43; Tue, 1 Sep 2020 08:22:58 -0700 (PDT) Received: from [153.66.254.174] (c-73-35-198-56.hsd1.wa.comcast.net [73.35.198.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 8B8B18EE0F5; Tue, 1 Sep 2020 08:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1598973778; bh=oM6M8l0ba8Kwr86wVvWOr0ibc9GeoVF02RI3gdpRvZg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=QlglmDYfmn+LUmPHNl9G1vxZ4WANgTGEDBcv3VoTq5jkCobGzHRwV7MDXP/8CkPRF DlnAvyJzmngr5D0/wC86DqyXRPVdp/OwUQc4zsVd3Mrk54apOxtDVbGKnBnOuqrFqS /e8+ps58Vp9230FkQlqzYQQbltdvuVP33ee7Vxcw= Message-ID: <1598973776.4238.11.camel@HansenPartnership.com> Subject: Re: [PATCH 07/28] 53c700: improve non-coherent DMA handling From: James Bottomley To: Matthew Wilcox Date: Tue, 01 Sep 2020 08:22:56 -0700 In-Reply-To: <20200901150554.GN14765@casper.infradead.org> References: <20200819065555.1802761-1-hch@lst.de> <20200819065555.1802761-8-hch@lst.de> <1598971960.4238.5.camel@HansenPartnership.com> <20200901150554.GN14765@casper.infradead.org> X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200901_112301_654062_213610C3 X-CRM114-Status: GOOD ( 18.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Marek Szyprowski , linux-samsung-soc@vger.kernel.org, Joonyoung Shim , linux-scsi@vger.kernel.org, Kyungmin Park , Ben Skeggs , Matt Porter , linux-media@vger.kernel.org, Tom Lendacky , Pawel Osciak , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, Seung-Woo Kim , linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 2020-09-01 at 16:05 +0100, Matthew Wilcox wrote: > On Tue, Sep 01, 2020 at 07:52:40AM -0700, James Bottomley wrote: > > I think this looks mostly OK, except for one misnamed parameter > > below. Unfortunately, the last non-coherent parisc was the 700 > > series and I no longer own a box, so I can't test that part of it > > (I can fire up the C360 to test it on a coherent arch). > > I have a 715/50 that probably hasn't been powered on in 15 years if > you need something that old to test on (I believe the 725/100 uses > the 7100LC and so is coherent). I'll need to set up a cross-compiler > ... I'm not going to say no to actual testing, but it's going to be a world of pain getting something so old going. I do have a box of older systems I keep for architectural testing that I need to rummage around in ... I just have a vague memory that my 715 actually caught fire a decade ago and had to be disposed of. James _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel