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[2620:137:e000::1:20]) by mx.google.com with ESMTP id r21-20020a632b15000000b0051b32aa267asi17650391pgr.671.2023.06.17.11.45.20; Sat, 17 Jun 2023 11:45:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kwiboo.se header.s=s1 header.b=ZhZMK7R6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=kwiboo.se Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346448AbjFQSZ5 (ORCPT + 99 others); Sat, 17 Jun 2023 14:25:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346427AbjFQSZw (ORCPT ); Sat, 17 Jun 2023 14:25:52 -0400 Received: from s.wrqvtbkv.outbound-mail.sendgrid.net (s.wrqvtbkv.outbound-mail.sendgrid.net [149.72.123.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 281F919A0 for ; Sat, 17 Jun 2023 11:25:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=from:subject:in-reply-to:references:mime-version:to:cc: content-transfer-encoding:content-type:cc:content-type:from:subject:to; s=s1; bh=8prRfbE+6BMjBYkBg8J9q7EYZh9DJvA0OE++z4Z4keE=; b=ZhZMK7R6ej9z8VN1hjk9bVnrycXXqn/4jMsTTlNtagZhUsDaF/J22/omdiwDdlFybEzR Od9N8qcTvXYd4JAn/TmfPsP28WgwY6Pca4/aDvoaHYpldx0KBz1YeT6cF8rOO0xrztVNgL HPZcwfwxxfzMbzvnS3NQbv9m4900wbSaUQSIwe0xc/t0Y53+2+vxj455KZOoo0RCn7wtlE 8eB/TGw1ENXAIZ3HSFOHjwb/7dpcO9P1CUaEnD4Xtsqn111d0Hjv1phsUly3R96CvqfzBB BZjdKxKPNB1HFy8VmHriTHyMCBxS8/Slb/JIFuXr3qd7hUh+/Ayrc11h+dZE7jdA== Received: by filterdrecv-66949dbc98-556jz with SMTP id filterdrecv-66949dbc98-556jz-1-648DFAAA-23 2023-06-17 18:25:46.920953702 +0000 UTC m=+3264358.699757555 Received: from bionic.localdomain (unknown) by geopod-ismtpd-9 (SG) with ESMTP id bSTYm9X4SBijI0tVW31gnw Sat, 17 Jun 2023 18:25:46.700 +0000 (UTC) From: Jonas Karlman Subject: [PATCH v3 2/2] iommu: rockchip: Allocate tables from all available memory for IOMMU v2 Date: Sat, 17 Jun 2023 18:25:47 +0000 (UTC) Message-Id: <20230617182540.3091374-3-jonas@kwiboo.se> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230617182540.3091374-1-jonas@kwiboo.se> References: <20230617182540.3091374-1-jonas@kwiboo.se> MIME-Version: 1.0 X-SG-EID: TdbjyGynYnRZWhH+7lKUQJL+ZxmxpowvO2O9SQF5CwCVrYgcwUXgU5DKUU3QxAfZekEeQsTe+RrMu3cja6a0h6BI1m9mIfF17oGYgzhIBYZRmTzhrjNczQSLhl6u7WvKsd+ZpARA1fE8B3XOD8sCVjnurgnuXDQ1qBePWUajf/4w8UYS5wqmf3pOo4RsYVQk9gjL8FyT8tfswBp5Va3Y3VuYnW8fzgWg8px1QcOts0ALg7MXzXNIWfAqVWYDu6uw To: Joerg Roedel , Will Deacon , Robin Murphy , Heiko Stuebner Cc: Benjamin Gaignard , iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman X-Entity-ID: P7KYpSJvGCELWjBME/J5tg== X-Spam-Status: No, score=-0.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_BL_SPAMCOP_NET, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768976584261725006?= X-GMAIL-MSGID: =?utf-8?q?1768976584261725006?= IOMMU v2 found in newer Rockchip SoCs, e.g. RK356x and RK3588, support placing directory and page tables in up to 40-bit addressable physical memory. Remove the use of GFP_DMA32 flag for IOMMU v2 now that the physical address to the directory table is correctly written to DTE_ADDR. Signed-off-by: Jonas Karlman Reviewed-by: Robin Murphy --- v3: - rework to only affect IOMMU v2 v2: - no change drivers/iommu/rockchip-iommu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index ae42959bc490..8ff69fbf9f65 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -99,6 +99,7 @@ struct rk_iommu_ops { u32 (*mk_dtentries)(dma_addr_t pt_dma); u32 (*mk_ptentries)(phys_addr_t page, int prot); u64 dma_bit_mask; + gfp_t gfp_flags; }; struct rk_iommu { @@ -727,7 +728,7 @@ static u32 *rk_dte_get_page_table(struct rk_iommu_domain *rk_domain, if (rk_dte_is_pt_valid(dte)) goto done; - page_table = (u32 *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32); + page_table = (u32 *)get_zeroed_page(GFP_ATOMIC | rk_ops->gfp_flags); if (!page_table) return ERR_PTR(-ENOMEM); @@ -1076,7 +1077,7 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type) * Each level1 (dt) and level2 (pt) table has 1024 4-byte entries. * Allocate one 4 KiB page for each table. */ - rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | GFP_DMA32); + rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | rk_ops->gfp_flags); if (!rk_domain->dt) goto err_free_domain; @@ -1377,6 +1378,7 @@ static struct rk_iommu_ops iommu_data_ops_v1 = { .mk_dtentries = &rk_mk_dte, .mk_ptentries = &rk_mk_pte, .dma_bit_mask = DMA_BIT_MASK(32), + .gfp_flags = GFP_DMA32, }; static struct rk_iommu_ops iommu_data_ops_v2 = { @@ -1384,6 +1386,7 @@ static struct rk_iommu_ops iommu_data_ops_v2 = { .mk_dtentries = &rk_mk_dte_v2, .mk_ptentries = &rk_mk_pte_v2, .dma_bit_mask = DMA_BIT_MASK(40), + .gfp_flags = 0, }; static const struct of_device_id rk_iommu_dt_ids[] = {