From patchwork Fri Jul 5 10:44:54 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hiroshi DOYU X-Patchwork-Id: 2824130 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 72E269F7D6 for ; Fri, 5 Jul 2013 12:03:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4488A2016C for ; Fri, 5 Jul 2013 12:03:52 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EBC7320169 for ; Fri, 5 Jul 2013 12:03:50 +0000 (UTC) Received: from merlin.infradead.org ([205.233.59.134]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uv3fz-0004cI-Th; Fri, 05 Jul 2013 10:55:46 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uv3Yn-0004sE-Jh; Fri, 05 Jul 2013 10:48:17 +0000 Received: from casper.infradead.org ([2001:770:15f::2]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uv3X3-0004eb-51 for linux-arm-kernel@merlin.infradead.org; Fri, 05 Jul 2013 10:46:29 +0000 Received: from hqemgate03.nvidia.com ([216.228.121.140]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uv3Wi-0001jC-0f for linux-arm-kernel@lists.infradead.org; Fri, 05 Jul 2013 10:46:11 +0000 Received: from hqnvupgp07.nvidia.com (Not Verified[216.228.121.13]) by hqemgate03.nvidia.com id ; Fri, 05 Jul 2013 03:53:16 -0700 Received: from hqemhub03.nvidia.com ([172.20.12.94]) by hqnvupgp07.nvidia.com (PGP Universal service); Fri, 05 Jul 2013 03:46:53 -0700 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Fri, 05 Jul 2013 03:46:53 -0700 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQEMHUB03.nvidia.com (172.20.150.15) with Microsoft SMTP Server id 8.3.298.1; Fri, 5 Jul 2013 03:45:48 -0700 Received: from sc-daphne.nvidia.com (Not Verified[172.20.232.60]) by hqnvemgw02.nvidia.com with MailMarshal (v7,1,2,5326) id ; Fri, 05 Jul 2013 03:45:48 -0700 Received: from oreo.Nvidia.com (dhcp-10-21-26-134.nvidia.com [10.21.26.134]) by sc-daphne.nvidia.com (8.13.8+Sun/8.8.8) with ESMTP id r65AjE3r022328; Fri, 5 Jul 2013 03:45:47 -0700 (PDT) From: Hiroshi Doyu To: Subject: [PATCH v2 19/22] iommu/tegra: smmu: Workaround PCIe IOMMU'able Date: Fri, 5 Jul 2013 13:44:54 +0300 Message-ID: <1373021097-32420-20-git-send-email-hdoyu@nvidia.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1373021097-32420-1-git-send-email-hdoyu@nvidia.com> References: <1373021097-32420-1-git-send-email-hdoyu@nvidia.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130705_114609_263317_0C5FEA4E X-CRM114-Status: GOOD ( 11.82 ) X-Spam-Score: -7.1 (-------) Cc: linux-tegra@vger.kernel.org, thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org, Hiroshi Doyu X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Make PCIe work as it is. IOMMU support can be implemented later. We need the same kind of registration framework for PCIe as platform_bus does currently. Signed-off-by: Hiroshi Doyu --- drivers/iommu/tegra-smmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 33fb7eb..ac5d661 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -330,6 +330,9 @@ static int __smmu_client_set_hwgrp(struct smmu_client *c, for_each_set_bit(i, (unsigned long *)&map, sizeof(map) * BITS_PER_BYTE) { + if (i == TEGRA_SWGROUP_AFI) /* FIXME: IOMMU'able PCIe */ + continue; + offs = HWGRP_ASID_REG(i); val = smmu_read(smmu, offs); if (on) {