From nobody Sun Feb 8 17:43:02 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 368F5C04A94 for ; Thu, 27 Jul 2023 18:28:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231435AbjG0S2i (ORCPT ); Thu, 27 Jul 2023 14:28:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231469AbjG0S2d (ORCPT ); Thu, 27 Jul 2023 14:28:33 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 850373A89 for ; Thu, 27 Jul 2023 11:28:24 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-56cf9a86277so12115817b3.3 for ; Thu, 27 Jul 2023 11:28:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1690482503; x=1691087303; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=PEh6KP4aD9iwA1DEGVvIcvZM3EWGNO1aoyAMRV7Ud6k=; b=6UcibgH0/zkffRBM6W84mD4r9DVL/EtI4FlBWtfqBvSbi1VSiG3wp4YrHKqt6vHzYy FL2MbFxp1EGvbGO+4xMF+Ul6VUNY2qOz2r/geRKlZD+qda8WvOAL7HYPQh8TOidzSazK ugJ5I4UQGtFngty3B18HAjEslZ+idyUlbjflYpyFNa3plRr5FfAbtctMGDLnPyoxNtOS 6FpT5ZB9Jv8/aYoHlojDjfdRmscKtknpjtYPCMOM1aExka6V6NlW7gpkcVVBw3bcM7s9 XWOUE4qG2ZfyKwTuf1ifFEXLDfyme1jV/1Zat6c3zg9AQzQapm8MKOFJccHdzSEtbJSG 2hNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690482503; x=1691087303; 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=PEh6KP4aD9iwA1DEGVvIcvZM3EWGNO1aoyAMRV7Ud6k=; b=FBwK4VIRgnidrB8I5H0ea+2d99XMJ5Sy+t5CmZlmX2VP/yOjhRWwhSaKq4POvWfzPE ImCHcSzOJ5ynTki4/AfnoVICusnCZorDMQG6QQUDml/TBziGZVhtP/5YLSVllYePBZu7 Mg2ikrUOoCDa4Cp1HAnPHJobLAz+KATXhgPITZkDKgUQi717YbAD8jl9eNA/FqlcVTSU fDHPtuRE5/lWSwirJn7gNHpfgZnuYmcr9aPTt9IQP1BHC/1ar5e6hHNvsJwnmCZ4oCdS xbaaSLzmBnd35SHkY1rPz+/EoOCYm8lqAI8DwB6i4CueoPC2a8QD6JyWekFwKel9/yfO aDOQ== X-Gm-Message-State: ABy/qLbNHHzQnvizabdpGn4rz8Y3tDDs4ZoJ75OFJGE7XJDEejz67q+4 1tXTKeRDNtitsgLiJmjpkt0TLnPHZOFA X-Google-Smtp-Source: APBJJlE+KrNhoTJJuR379XpaV6B7mKSWJjpW1knp6z874M4nN41DJV5EsUO4z96yxRFrVrr4Pv89Se9VQOSG X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:780f:26da:d952:3463]) (user=mshavit job=sendgmr) by 2002:a25:5012:0:b0:d0d:c74a:a6c0 with SMTP id e18-20020a255012000000b00d0dc74aa6c0mr907ybb.2.1690482503457; Thu, 27 Jul 2023 11:28:23 -0700 (PDT) Date: Fri, 28 Jul 2023 02:26:19 +0800 In-Reply-To: <20230727182647.4106140-1-mshavit@google.com> Mime-Version: 1.0 References: <20230727182647.4106140-1-mshavit@google.com> X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230727182647.4106140-4-mshavit@google.com> Subject: [PATCH v1 3/7] iommu/arm-smmu-v3: Encapsulate ctx_desc_cfg init in alloc_cd_tables 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 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 is slighlty cleaner: arm_smmu_ctx_desc_cfg is initialized in a single function instead of having pieces set ahead-of time by its caller. Signed-off-by: Michael Shavit --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) 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 8cf4987dd9ec7..8a286e3838d70 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -1132,7 +1132,8 @@ int arm_smmu_write_ctx_desc(struct arm_smmu_domain *s= mmu_domain, int ssid, return 0; } =20 -static int arm_smmu_alloc_cd_tables(struct arm_smmu_domain *smmu_domain) +static int arm_smmu_alloc_cd_tables(struct arm_smmu_domain *smmu_domain, + struct arm_smmu_master *master) { int ret; size_t l1size; @@ -1140,6 +1141,7 @@ static int arm_smmu_alloc_cd_tables(struct arm_smmu_d= omain *smmu_domain) struct arm_smmu_device *smmu =3D smmu_domain->smmu; struct arm_smmu_ctx_desc_cfg *cdcfg =3D &smmu_domain->cd_table; =20 + cdcfg->max_cds_bits =3D master->ssid_bits; max_contexts =3D 1 << cdcfg->max_cds_bits; =20 if (!(smmu->features & ARM_SMMU_FEAT_2_LVL_CDTAB) || @@ -2107,7 +2109,6 @@ static int arm_smmu_domain_finalise_s1(struct arm_smm= u_domain *smmu_domain, int ret; u32 asid; struct arm_smmu_device *smmu =3D smmu_domain->smmu; - struct arm_smmu_ctx_desc_cfg *cdcfg =3D &smmu_domain->cd_table; struct arm_smmu_ctx_desc *cd =3D &smmu_domain->cd; typeof(&pgtbl_cfg->arm_lpae_s1_cfg.tcr) tcr =3D &pgtbl_cfg->arm_lpae_s1_c= fg.tcr; =20 @@ -2120,11 +2121,9 @@ static int arm_smmu_domain_finalise_s1(struct arm_sm= mu_domain *smmu_domain, if (ret) goto out_unlock; =20 - cdcfg->max_cds_bits =3D master->ssid_bits; - smmu_domain->stall_enabled =3D master->stall_enabled; =20 - ret =3D arm_smmu_alloc_cd_tables(smmu_domain); + ret =3D arm_smmu_alloc_cd_tables(smmu_domain, master); if (ret) goto out_free_asid; =20 --=20 2.41.0.585.gd2178a4bd4-goog