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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 6BD2CC3A59E for ; Tue, 20 Aug 2019 19:07:10 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 47234233A1 for ; Tue, 20 Aug 2019 19:07:10 +0000 (UTC) Authentication-Results: mail.kernel.org; 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 47234233A1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 868C0D3B; Tue, 20 Aug 2019 19:06:46 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 92AF2C87 for ; Tue, 20 Aug 2019 19:06:45 +0000 (UTC) Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id EFCEC87 for ; Tue, 20 Aug 2019 19:06:44 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id D70A06115D; 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= 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> Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Will Deacon , linux-arm-kernel@lists.infradead.org, Robin Murphy X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.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; } -- 2.7.4 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu