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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 05743C76191 for ; Thu, 18 Jul 2019 05:16:26 +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 AE2832173E for ; Thu, 18 Jul 2019 05:16:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AE2832173E 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 45q2RW5C5czDqbh for ; Thu, 18 Jul 2019 15:16:23 +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 45q2Lm4h34zDqJY for ; Thu, 18 Jul 2019 15:12:16 +1000 (AEST) Received: from fstn1-p1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 89354AE807E8; Thu, 18 Jul 2019 01:11:39 -0400 (EDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel v5 0/4] powerpc/ioda2: Yet another attempt to allow DMA masks between 32 and 59 Date: Thu, 18 Jul 2019 15:11:35 +1000 Message-Id: <20190718051139.74787-1-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: Sam Bobroff , Alistair Popple , Oliver O'Halloran , Alexey Kardashevskiy , 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 masks between 32..59 which are not large enough to use either a PHB3 bypass mode or a sketchy bypass. Depending on the max order, up to 40 is usually available. This is an optimization and not a bug fix for DMA API usage. Changelogs are in the patches. This is based on sha1 a2b6f26c264e Christophe Leroy "powerpc/module64: Use symbolic instructions names.". Please comment. Thanks. Alexey Kardashevskiy (4): powerpc/powernv/ioda: Fix race in TCE level allocation powerpc/iommu: Allow bypass-only for DMA powerpc/powernv/ioda2: 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 | 7 +- arch/powerpc/platforms/powernv/pci.h | 2 +- arch/powerpc/kernel/dma-iommu.c | 11 ++- arch/powerpc/kernel/iommu.c | 74 +++++++++++++------ arch/powerpc/platforms/cell/iommu.c | 2 +- arch/powerpc/platforms/pasemi/iommu.c | 2 +- arch/powerpc/platforms/powernv/pci-ioda-tce.c | 38 ++++++---- arch/powerpc/platforms/powernv/pci-ioda.c | 42 +++++++++-- arch/powerpc/platforms/pseries/iommu.c | 8 +- arch/powerpc/platforms/pseries/vio.c | 2 +- arch/powerpc/sysdev/dart_iommu.c | 2 +- 11 files changed, 129 insertions(+), 61 deletions(-) -- 2.17.1