Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2466173imu; Wed, 21 Nov 2018 12:06:36 -0800 (PST) X-Google-Smtp-Source: AFSGD/V0s6FjhDa3FG73MEOEqGA1J0vY2R39vzi12iUTjrOcSqmuaS51vjURSnTGaQrEdBLShXlR X-Received: by 2002:a17:902:8e8a:: with SMTP id bg10mr8252567plb.192.1542830796839; Wed, 21 Nov 2018 12:06:36 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542830796; cv=none; d=google.com; s=arc-20160816; b=zx2ZZVWYZO63hab2cKmIv1eBKloRpmLUuoc47SQwvu5c8/EitsAA8PMtJopZlEtsPx i/arAFN19eQTyGxl75WXoRZOQuWBb/NRcAICCsyESwfJPtiCUSxefSeVTKna/xuSM5Kg lGDxqs/5t9g3TjZhCo2J1y0lUsfW3sWF+HLKj78jqvqldclzjpKa4xnpTWoQl6KLuuqe QQpuxPkYvaW+p2MeFRAcAR71nObTMlR402cxHBshPg3AQMlBSLQzOV10EUCoVmEXfSoT B/mIZUe5Y1Kelb+HKRmAKeuIm6B9Ym60/Jn+c8ipt5REf55VJ1agmMYzktsWm+jFittT izdw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:feedback-id:mime-version:user-agent :references:message-id:in-reply-to:subject:cc:to:from:date :dkim-signature; bh=S1EWvX3UZYb3JEPOjlAPrDF2PAzMoi+8UxVNd5C4oIw=; b=UMyGu7Mcisd5SJ9j96oA2KmLeFl6p1weBtS1nS4nl6zV0uAPJunFjrk00SQ0K+XJgD 69e/jQuEqexKpmsz7sHjLr6q0+MihPlVyNFPmriDZkvFPhRPxbX7bwz2Hq1gYoEyhOHy PtEh3/Vkz+BTLhg5T2toesyFKZ4JW7/fu0oCAHSnDHqSgz/Omxc+Fuj0LQDrBepFUmbl CtvrqvFUFEbB/o3SE/7EsAXoDiA1teaHc1HaES37SqdBtV2fXrV1b6XZ411KlFqUktDt rNmGvDCdZvp7fPptf4qIDhDbsjpER9Ylji/LrNcV/olmh0Uho9BO1hNq0YUehOEC+qBX 5iAQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b=DLoqFf+t; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i6si42993738pgm.296.2018.11.21.12.06.19; Wed, 21 Nov 2018 12:06:36 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b=DLoqFf+t; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732403AbeKVENu (ORCPT + 99 others); Wed, 21 Nov 2018 23:13:50 -0500 Received: from a9-92.smtp-out.amazonses.com ([54.240.9.92]:44158 "EHLO a9-92.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726671AbeKVENt (ORCPT ); Wed, 21 Nov 2018 23:13:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug; d=amazonses.com; t=1542821910; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=S1EWvX3UZYb3JEPOjlAPrDF2PAzMoi+8UxVNd5C4oIw=; b=DLoqFf+tcRxMRlEWuqRLoNmN+fRQLqlBdUzuywUtEfvQ4NVPZ+p3gvud5xAcyRlI p1eiu5NU/ohC0wlRqfyPNK6zNOlnvBn6mr/i6t/WhoHn2IvOvB1ZwP6lZ/r87LYq06Z wb7Lt70TBUMb3YD13wxRarxVnso7JaNu+32zing8= Date: Wed, 21 Nov 2018 17:38:30 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: Will Deacon cc: Nicolas Boichat , Robin Murphy , Joerg Roedel , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka , Michal Hocko , Mel Gorman , Levin Alexander , Huaisheng Ye , Mike Rapoport , linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Yong Wu , Matthias Brugger , Tomasz Figa , yingjoe.chen@mediatek.com Subject: Re: [PATCH v2 3/3] iommu/io-pgtable-arm-v7s: Request DMA32 memory, and improve debugging In-Reply-To: <20181121164638.GD24883@arm.com> Message-ID: <01000167375a15f8-362aa1e2-cf01-49b5-92b5-f0a4efcca477-000000@email.amazonses.com> References: <20181111090341.120786-1-drinkcat@chromium.org> <20181111090341.120786-4-drinkcat@chromium.org> <20181121164638.GD24883@arm.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SES-Outgoing: 2018.11.21-54.240.9.92 Feedback-ID: 1.us-east-1.fQZZZ0Xtj2+TD7V5apTT/NrT6QKuPgzCT/IC7XYgDKI=:AmazonSES Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 21 Nov 2018, Will Deacon wrote: > > +#define ARM_V7S_TABLE_SLAB_CACHE SLAB_CACHE_DMA32 SLAB_CACHE_DMA32??? WTH is going on here? We are trying to get rid of the dma slab array.