From patchwork Mon Jan 21 05:53:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Gautam X-Patchwork-Id: 10772627 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8393F1390 for ; Mon, 21 Jan 2019 07:14:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6ED3220246 for ; Mon, 21 Jan 2019 07:14:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 63460284F1; Mon, 21 Jan 2019 07:14:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 13AE420246 for ; Mon, 21 Jan 2019 07:14:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727175AbfAUHOB (ORCPT ); Mon, 21 Jan 2019 02:14:01 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:43272 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727920AbfAUHNE (ORCPT ); Mon, 21 Jan 2019 02:13:04 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 78F47608BA; Mon, 21 Jan 2019 05:53:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1548050032; bh=4mDXwAKHFSc10cR+k82iN/G4anm4O+nQXiSjDjukJ9E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xs/4UlIjpWtE/38obAbEUQYGPqNjN4R+mOKk8kr4h1S+TK+0PrcyAIH1XwB5yXp1C Wi9juo6Tw4hd/VnQyB/eWlyeehoC3xWxB8xB4bK5JV8AP4gPMWhFx2O33iL2d4d+O2 twpFBOVeUrso7f/BtjYjkQHJ5kvHqHxTMLJbKvyA= Received: from blr-ubuntu-41.ap.qualcomm.com (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: vivek.gautam@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 441566020B; Mon, 21 Jan 2019 05:53:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1548050031; bh=4mDXwAKHFSc10cR+k82iN/G4anm4O+nQXiSjDjukJ9E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A7n7B4m5rAc5QToi9qamk/lPuXijQkDh0YIFRtv+Ku3l12hOlgK9FHgAbLFMywE3x w/aMMEhshHhzRNXFWosXrtLWrr3YRVdZhPNhoLB1hkgbtJrjAhFzAm+d4e4hU206lQ Cl2KzUIKR8kagaBcNuWUc/Mqr1wNr9ecdXBx8AQI= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 441566020B Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=vivek.gautam@codeaurora.org From: Vivek Gautam To: will.deacon@arm.com, robin.murphy@arm.com, joro@8bytes.org, iommu@lists.linux-foundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, tfiga@chromium.org, pratikp@codeaurora.org, pdaly@codeaurora.org, jcrouse@codeaurora.org, Vivek Gautam Subject: [PATCH 1/3] iommu/arm-smmu: Move to bitmap for arm_smmu_domain atrributes Date: Mon, 21 Jan 2019 11:23:33 +0530 Message-Id: <20190121055335.15430-2-vivek.gautam@codeaurora.org> X-Mailer: git-send-email 2.16.1.72.g5be1f00a9a70 In-Reply-To: <20190121055335.15430-1-vivek.gautam@codeaurora.org> References: <20190121055335.15430-1-vivek.gautam@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP A number of arm_smmu_domain's attributes can be assigned based on the iommu domains's attributes. These local attributes better be managed by a bitmap. So remove boolean flags and move to a 32-bit bitmap, and enable each bits separtely. Signed-off-by: Vivek Gautam --- drivers/iommu/arm-smmu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 7ebbcf1b2eb3..52b300dfc096 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -257,10 +257,11 @@ struct arm_smmu_domain { const struct iommu_gather_ops *tlb_ops; struct arm_smmu_cfg cfg; enum arm_smmu_domain_stage stage; - bool non_strict; struct mutex init_mutex; /* Protects smmu pointer */ spinlock_t cb_lock; /* Serialises ATS1* ops and TLB syncs */ struct iommu_domain domain; +#define ARM_SMMU_DOMAIN_ATTR_NON_STRICT BIT(0) + unsigned int attr; }; struct arm_smmu_option_prop { @@ -901,7 +902,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, if (smmu->features & ARM_SMMU_FEAT_COHERENT_WALK) pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_NO_DMA; - if (smmu_domain->non_strict) + if (smmu_domain->attr & ARM_SMMU_DOMAIN_ATTR_NON_STRICT) pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT; /* Non coherent page table mappings only for Stage-1 */ @@ -1598,7 +1599,8 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain, case IOMMU_DOMAIN_DMA: switch (attr) { case DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE: - *(int *)data = smmu_domain->non_strict; + *(int *)data = !!(smmu_domain->attr & + ARM_SMMU_DOMAIN_ATTR_NON_STRICT); return 0; default: return -ENODEV; @@ -1638,7 +1640,7 @@ static int arm_smmu_domain_set_attr(struct iommu_domain *domain, case IOMMU_DOMAIN_DMA: switch (attr) { case DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE: - smmu_domain->non_strict = *(int *)data; + smmu_domain->attr |= ARM_SMMU_DOMAIN_ATTR_NON_STRICT; break; default: ret = -ENODEV;