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