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=-8.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 533D9C10F0E for ; Fri, 12 Apr 2019 06:46:03 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 BF97D2186A for ; Fri, 12 Apr 2019 06:46:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BF97D2186A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44gT1h1N5czDqTP for ; Fri, 12 Apr 2019 16:46:00 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=ozlabs.ru (client-ip=107.173.13.209; helo=ozlabs.ru; envelope-from=aik@ozlabs.ru; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Received: from ozlabs.ru (ozlabs.ru [107.173.13.209]) by lists.ozlabs.org (Postfix) with ESMTP id 44gSzh34mqzDqSY for ; Fri, 12 Apr 2019 16:44:15 +1000 (AEST) Received: from fstn1-p1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 8FC0AAE80013; Fri, 12 Apr 2019 02:44:11 -0400 (EDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel RFC 0/2] powerpc/ioda2: An attempt to allow DMA masks between 32 and 59 Date: Fri, 12 Apr 2019 16:44:06 +1000 Message-Id: <20190412064408.85399-1-aik@ozlabs.ru> X-Mailer: git-send-email 2.17.1 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Kardashevskiy , Alistair Popple , Oliver O'Halloran , David Gibson Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This is an attempt to allow DMA mask 40 or similar which are not large enough to use either a PHB3 bypass mode or a sketchy bypass. This is based on sha1 582549e3fbe1 Linus Torvalds Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Please comment. Thanks. Alexey Kardashevskiy (2): powerpc/powernv/ioda: Allocate TCE table levels on demand for default DMA window powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU pages arch/powerpc/include/asm/iommu.h | 8 ++- arch/powerpc/platforms/powernv/pci.h | 2 +- arch/powerpc/kernel/iommu.c | 58 +++++++++++++------ arch/powerpc/platforms/powernv/pci-ioda-tce.c | 19 +++--- arch/powerpc/platforms/powernv/pci-ioda.c | 14 ++++- 5 files changed, 66 insertions(+), 35 deletions(-) -- 2.17.1