From nobody Mon Feb 9 17:25:24 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 35068C001E0 for ; Wed, 2 Aug 2023 16:34:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234060AbjHBQeG (ORCPT ); Wed, 2 Aug 2023 12:34:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233049AbjHBQd4 (ORCPT ); Wed, 2 Aug 2023 12:33:56 -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 593372733 for ; Wed, 2 Aug 2023 09:33:50 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-583b256faf5so692807b3.1 for ; Wed, 02 Aug 2023 09:33:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1690994029; x=1691598829; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=bGhWSbzc4cZej0FeJJbc3VXFTtBzmMATq60yYbQRCzk=; b=Wfmjss+UWmZsCytY4z2zpjHfRx8D5zoF9UEpfx4Rmioi27engfbfmtGjsJKQWBcyVf QS5jrHEj985TIIPJU2Mfx45hFU3uZrL0e52dgYK7tVtA9xaCfnfD2ihgwvbDsnbWO4Ag So0UGVMoWSVnDk+FESZFRihVwOytovkaGPzW4T8N0gSCoM2jXawxIf3LpwlN5Khp+pah yjcreTw1ONoQ8cMSKG2QPznIeGjCQIWll17RNVuYyACk1GcDPSczUDF/RDsO9l6A46K0 0Lcty3jmaLU2xZl9Y76nI9/56Xbhl0emopedb/DqA/C06TZARGBtPULdRn5u2XTvcmw/ kOJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690994029; x=1691598829; 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=bGhWSbzc4cZej0FeJJbc3VXFTtBzmMATq60yYbQRCzk=; b=eGRpqs/jhvoJ9IcpwR2Se2/WOWRIqgtvC4C0paKW0yjrC7jB/6tGA+wQaZVk3tlXUu fefFxLQxnbd5XIjA2ylx+4bGOJZWHpPt2HN0W1AN4mNqt+SncmSTvhw9ZKrGx2mPI5tf Zppwx3FPSj1/jjzTYRSFJ3B0g9lJGLM31f/g77IgCumXogZfJjhH8xSg2UkL76p/64o3 pdmvC1K+Yjk9+0AK1q9BjXmYSNafLhW9GKj04lvV430RIw7qDhmA5S2E7UCSEvYHLWKK bLrGWzGp2INePh/KtwYFHnNp6hlxQjHM9DmsSQvzO3hBtqc1OLBdq5zAnbWQDf0SUPvp AMUQ== X-Gm-Message-State: ABy/qLbBFtjs/ehGMioL19nPHu0xzcyCnDUFJurZoryK13HWdGifUJkN LYEDOom6TFs2Vm3wwnbfFss4FX/mE/or X-Google-Smtp-Source: APBJJlFrdCMuLTcNvB4PEmrjrdw1E2K0mx6VOTk63TBd4jAAKLgWBwBxXteZbNG1vw2PQrNREyOTvEazvG+L X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:39d1:8774:b733:6210]) (user=mshavit job=sendgmr) by 2002:a81:ad5b:0:b0:56c:e9fe:3cb4 with SMTP id l27-20020a81ad5b000000b0056ce9fe3cb4mr227897ywk.1.1690994028873; Wed, 02 Aug 2023 09:33:48 -0700 (PDT) Date: Thu, 3 Aug 2023 00:32:31 +0800 In-Reply-To: <20230802163328.2623773-1-mshavit@google.com> Mime-Version: 1.0 References: <20230802163328.2623773-1-mshavit@google.com> X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230803003234.v4.3.I875254464d044a8ce8b3a2ad6beb655a4a006456@changeid> Subject: [PATCH v4 3/8] iommu/arm-smmu-v3: Encapsulate ctx_desc_cfg init in alloc_cd_tables From: Michael Shavit To: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: will@kernel.org, robin.murphy@arm.com, nicolinc@nvidia.com, jgg@nvidia.com, jean-philippe@linaro.org, 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 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 Reviewed-by: Jason Gunthorpe Reviewed-by: Nicolin Chen --- (no changes since v1) 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 ded613aedbb0..fe4b19c3b8de 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 *cd_table =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 - cd_table->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