From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 607AC2714D for ; Thu, 27 Jul 2023 18:28:04 +0000 (UTC) Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-583a89cccf6so12968017b3.1 for ; Thu, 27 Jul 2023 11:28:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1690482483; x=1691087283; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=LdqBlA80Wg7TTifhsmcWRJBqXp5WhnKqMSkVfyET1zg=; b=2ORqFkA2f3Z9uBQcEXJuPsfPoD3pbCZzEg9K5vjpSb+ANKuVree8tmQXRURnLx56ld kaGAjGT3BxZrdF3VUT+aDQokKYfTI8kUwreH2Ab+JrMFGHHJcKLVDG2OXYPZ3VLXA/Fv 6stescGuyXhxkUxbS5ZRNT907yR2cFGVnzi34CqfJbBZ2Z+D5sawwHlSDSnFU104J90i glA8cm4ApX4r3QoQCorCX6/v+SGlMnEfQVVz+ZVvLaIBZSFCBwZ0nBPt7llVhUy8I30v wq5c/3NJErPcbxT2Qp0L2yDOnvEnZGEV87lSNUYeBc0TkL8RMv3mWzLs08LIc7xWbRRW ya0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690482483; x=1691087283; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=LdqBlA80Wg7TTifhsmcWRJBqXp5WhnKqMSkVfyET1zg=; b=Iig5EYrsujtUGCTxZuhLxJtB1aHM9q9N7EAGGYjKw6rCHj4DhcZAskrf5L+hd9DOwR aKIQQgEyUbxrMYcZ5tfG0wMWotkCpAHSVtpPpOEkhJrrxRRJImhMy0F2klIdFCAUwkkk dtwSrA4lN6YCZllFPQDWdhk7xkRsoQ3CFhI3yKCMqw5NN4rVa4cHAMfs7+xVzG8uXkxX 7mdp33Sahz36x+NO447o391/4RvSxFIT/fHzy5ALgOf762OU0esrFRTKAP1ZWcdh09Zk bmW+Oz/PWv1rTfeF+2dnRBefH2/4Mx3gxVSEJJS6dAPuioahg+zOpI9PKcVLSzsIx3nL YbXQ== X-Gm-Message-State: ABy/qLZNOuAxrkEOIjKXxumIx5o4WBe4RV27EoG7krZbNAR9qvrPzztz GbtTyLCbXM2Enhq/4C66uxPr/Mt+G9Zi X-Google-Smtp-Source: APBJJlFu1RmIM9I2XbdYtCItJzT1I4AJtth2QNNJiNYVh4Yo5EZk+wFwLwBJ0TaQyZTQq3wAjZaAjFpkxTME X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:780f:26da:d952:3463]) (user=mshavit job=sendgmr) by 2002:a05:690c:72c:b0:576:cd91:b888 with SMTP id bt12-20020a05690c072c00b00576cd91b888mr805ywb.0.1690482483158; Thu, 27 Jul 2023 11:28:03 -0700 (PDT) Date: Fri, 28 Jul 2023 02:26:16 +0800 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230727182647.4106140-1-mshavit@google.com> Subject: [PATCH v1 0/7] Refactor the SMMU's CD table ownership From: Michael Shavit To: Will Deacon , Robin Murphy , Joerg Roedel Cc: Michael Shavit , jean-philippe@linaro.org, nicolinc@nvidia.com, jgg@nvidia.com, baolu.lu@linux.intel.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Hi all, This series refactors stage 1 domains so that they describe a single CD entry. These entries are now inserted into a CD table that is owned by the arm_smmu_master instead of the domain. This is conceptually cleaner and unblocks other features, such as attaching domains with PASID (for unmanaged/dma domains). This patch series was originally part of a larger patch series that implemented the set_dev_pasid callback for non-SVA domains but is now split into a distinct series. This patch series is also available on gerrit with Jean's SMMU test engine patches cherry-picked on top for testing: https://linux-review.git.corp.google.com/c/linux/kernel/git/torvalds/linux/+/24729 Thanks, Michael Shavit Changelog v1: * Replace s1_cfg with arm_smmu_ctx_desc_cfg representing the CD table * Assume that the CD table is owned by the SMMU master for most operations. This is forward-compatible with the nested patch series as these operations wouldn't be called when the installed CD table comes from nested domains. * Split off as a distinct patch series Split-off from: https://lore.kernel.org/all/20230621063825.268890-1-mshavit@google.com/ Michael Shavit (7): iommu/arm-smmu-v3: Move ctx_desc out of s1_cfg iommu/arm-smmu-v3: Replace s1_cfg with ctx_desc_cfg iommu/arm-smmu-v3: Encapsulate ctx_desc_cfg init in alloc_cd_tables iommu/arm-smmu-v3: move stall_enabled to the cd table iommu/arm-smmu-v3: Skip cd sync if CD table isn't active iommu/arm-smmu-v3: Refactor write_ctx_desc iommu/arm-smmu-v3: Move CD table to arm_smmu_master .../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 35 +++- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 167 ++++++++---------- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 39 ++-- 3 files changed, 123 insertions(+), 118 deletions(-) base-commit: 0a8db05b571ad5b8d5c8774a004c0424260a90bd -- 2.41.0.585.gd2178a4bd4-goog