From nobody Mon Feb 9 16:22:00 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9D50C04A6A for ; Thu, 3 Aug 2023 10:14:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235305AbjHCKOh (ORCPT ); Thu, 3 Aug 2023 06:14:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235280AbjHCKOU (ORCPT ); Thu, 3 Aug 2023 06:14:20 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8505335A4 for ; Thu, 3 Aug 2023 03:14:17 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-d061f324d64so888980276.1 for ; Thu, 03 Aug 2023 03:14:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1691057656; x=1691662456; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=rOifn/Wuhm3Lbc3GJRKlq49fGVZtVjA5QOC6h6hHPVo=; b=zJO63gTN+QV8Tfx+6gzEyj5dUonNQXVuyOR/4CqHTz6PD/3cyRUXHXVcphE0fpyuCR ZKz98+w5g8mFMMzzvIJ747TDQzawpo9yAa/1f6z+hOOvccv3tyru4rVG/SNKz9FZCl5s uIn2qnCLLDiJNac2CKJCfNSreSw5An3t/Kx+wsM8Pcw1M5SxyvLmfICMMkWalT4pT/fH IEFOJ549A2Nn1ee23hdlvSi7Y3WyIy4Tdve79X6p9c1NumDYR1CfcPF3sBfoSZXRe5Qr WrgHPCqRl2usHE3RPid/EudzlKgU3D4crbQvFz+8xt4Mn708pcq+X+TmyEB36fv7aHaX l0Og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691057656; x=1691662456; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rOifn/Wuhm3Lbc3GJRKlq49fGVZtVjA5QOC6h6hHPVo=; b=g+hHLUbla0g8bJWqaRSy1XLABRj9dIXznRoXlUCIMhHGoyq1HiEW6fQvbu1d32KmXK 1zCDIPpDGpH7psgoBE/9qK+GNrO8bkkC+K+gH3Yk+qI3zJvkJD5cZnPQuRphfUHtgQ3u qiv7UJnPE32RsLF7nV5deCeLw7LUYWWdZzteQ7NbvERHxdq7XubQoZQWNvCR63vPKCuK HSCWsGHFAWJgUwdMOTib4t47ieSTKXJu+GvPa0v0jXPGtrkammD0Ed60NenChlUXnhLh a9uiacnkb2Mx7IsjPQRMvrIA9/iOFt0NbManpAderGsq6fuLD5KiBEAA5cnCaSKrSOIu eyQg== X-Gm-Message-State: ABy/qLZf137JNbsIKYn36vtP8fHLaMYUOqE8gWPFDPaf05Fs61uY3653 v51i3w2D68n+3lR+Ha+3NIDlF4G0hij4 X-Google-Smtp-Source: APBJJlEww5GzZLOemvoHR0jnjoJTpv9UvSTAuAgQXGJ5jhZ7oiz42irlxltf7zXwxFAEDzkY/BIZ2zeS4ZW5 X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:39d1:8774:b733:6210]) (user=mshavit job=sendgmr) by 2002:a25:ab0b:0:b0:d0e:e780:81b3 with SMTP id u11-20020a25ab0b000000b00d0ee78081b3mr118271ybi.2.1691057656667; Thu, 03 Aug 2023 03:14:16 -0700 (PDT) Date: Thu, 3 Aug 2023 18:12:23 +0800 In-Reply-To: <20230803101351.1561031-1-mshavit@google.com> Mime-Version: 1.0 References: <20230803101351.1561031-1-mshavit@google.com> X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230803181225.v5.3.I374b2826d8b01f3a0110fd42a01208d2e8adb0a2@changeid> Subject: [PATCH v5 3/6] iommu/arm-smmu-v3: Add helper for atc invalidation From: Michael Shavit To: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: baolu.lu@linux.intel.com, will@kernel.org, jgg@nvidia.com, jean-philippe@linaro.org, robin.murphy@arm.com, nicolinc@nvidia.com, Michael Shavit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This will be used to invalidate ATC entries made on an SSID for a master when detaching a domain with pasid. Signed-off-by: Michael Shavit --- (no changes since v2) Changes in v2: - Make use of arm_smmu_atc_inv_cmd_set_ssid drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.c index 6e614ad12fb48..e0565c644ffdb 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -1798,13 +1798,15 @@ arm_smmu_atc_inv_to_cmd(unsigned long iova, size_t = size, cmd->atc.size =3D log2_span; } =20 -static int arm_smmu_atc_inv_master(struct arm_smmu_master *master) +static int arm_smmu_atc_inv_master_ssid(struct arm_smmu_master *master, + int ssid) { int i; struct arm_smmu_cmdq_ent cmd; struct arm_smmu_cmdq_batch cmds; =20 arm_smmu_atc_inv_to_cmd(0, 0, &cmd); + arm_smmu_atc_inv_cmd_set_ssid(ssid, &cmd); cmds.num =3D 0; for (i =3D 0; i < master->num_streams; i++) { cmd.atc.sid =3D master->streams[i].id; @@ -1814,6 +1816,11 @@ static int arm_smmu_atc_inv_master(struct arm_smmu_m= aster *master) return arm_smmu_cmdq_batch_submit(master->smmu, &cmds); } =20 +static int arm_smmu_atc_inv_master(struct arm_smmu_master *master) +{ + return arm_smmu_atc_inv_master_ssid(master, 0); +} + /* * If ssid is non-zero, issue atc invalidations with the given ssid instea= d of * the one the domain is attached to. This is used by SVA since it's pasid --=20 2.41.0.585.gd2178a4bd4-goog