From patchwork Tue Aug 20 19:06:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 11104517 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9206D13B1 for ; Tue, 20 Aug 2019 19:07:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 6EFDA22DA9 for ; Tue, 20 Aug 2019 19:07:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ZrkDcEky"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="IgFkJdL0"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="IgFkJdL0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6EFDA22DA9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=EkHF8qMN9HKLjR5WRsuNerAAexAJQbiuJrgaa3ije6Q=; b=ZrkDcEkytuMxnz0XDE2MJjRlJc x6ytgNxpgsbgnb7mk9c7PWiueGEr7rNa2kSz7cyQFoYupbfzl3KPtfyVSN74U3U+RUdgKKpnULcRr vDQEzfyKMPxSp7urVwb/SG/PDz/VBxTi36u7S7MejU5VaxBKUPtPOf4VkS2tgxiLA3ML4Zh1Rwoaf 9ZbY+5WJ1XwanOKt/nH32btVWxNlJJ6xi18j48HLX5Zy7KUL9zwouHpHwVFfnKcdBqHpImsVTIKAG Bws7ZMs9c9Rob7CeeY6YRtcgwssdKBM8Yn2MQ8RTQzUeOTZs5ypNI31YtvJkEIE/Epq+iT/00T5S3 rwkDY+yg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i09TU-0005NR-Q4; Tue, 20 Aug 2019 19:07:20 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i09Sv-0004hE-1t for linux-arm-kernel@lists.infradead.org; Tue, 20 Aug 2019 19:06:46 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id C91F661196; Tue, 20 Aug 2019 19:06:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566328004; bh=OnE1CRltdThiSh478OmHpFjhtqzYCN7pRfxgwT3K5Vs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IgFkJdL0ALFRYYrWGproQZN4BP4rNXrgT0RY8B79h72JQ+sULJ6FfqUF2RNG/gX/3 lllx+JQXaHzpnVfSVyZoXp6rbwz+5Bkr8/no/PrqNpNATtAVCy9GOcBIdfhyy2GlV2 Lq/pB9YInwIuZoDUHMrwosVAtDV50gJYZn9CQ3jM= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from jcrouse1-lnx.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcrouse@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id A27D66115D; Tue, 20 Aug 2019 19:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566328004; bh=OnE1CRltdThiSh478OmHpFjhtqzYCN7pRfxgwT3K5Vs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IgFkJdL0ALFRYYrWGproQZN4BP4rNXrgT0RY8B79h72JQ+sULJ6FfqUF2RNG/gX/3 lllx+JQXaHzpnVfSVyZoXp6rbwz+5Bkr8/no/PrqNpNATtAVCy9GOcBIdfhyy2GlV2 Lq/pB9YInwIuZoDUHMrwosVAtDV50gJYZn9CQ3jM= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A27D66115D 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=jcrouse@codeaurora.org From: Jordan Crouse To: freedreno@lists.freedesktop.org Subject: [PATCH 5/7] iommu/arm-smmu: Support DOMAIN_ATTR_SPLIT_TABLES Date: Tue, 20 Aug 2019 13:06:30 -0600 Message-Id: <1566327992-362-6-git-send-email-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1566327992-362-1-git-send-email-jcrouse@codeaurora.org> References: <1566327992-362-1-git-send-email-jcrouse@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190820_120645_118387_EDC166EA X-CRM114-Status: UNSURE ( 9.86 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.145.29.96 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, Joerg Roedel , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Will Deacon , linux-arm-kernel@lists.infradead.org, Robin Murphy MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Support the DOMAIN_ATTR_SPLIT_TABLES attribute to let the leaf driver know if split pagetables are enabled for the domain. Signed-off-by: Jordan Crouse --- drivers/iommu/arm-smmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 3f41cf7..6a512ff 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1442,6 +1442,9 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain, case DOMAIN_ATTR_NESTING: *(int *)data = (smmu_domain->stage == ARM_SMMU_DOMAIN_NESTED); return 0; + case DOMAIN_ATTR_SPLIT_TABLES: + *(int *)data = !!(smmu_domain->split_pagetables); + return 0; default: return -ENODEV; }