From patchwork Sat Jun 17 18:25:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 13283694 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BA7BFEB64DB for ; Sat, 17 Jun 2023 18:25:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=e7Sby7ILBI23rI/NON7n9hG2amrJn5BThdLGPgprkZs=; b=yc0mxYBX9JWCSMgmvg7vtZpGOW /akx35tbP/hBZiEr+DutMBhNA+kwSiurE4FF4+A5NgXJjojfZqT1MGyDdKtbgnzer+jCfAK1R8bKw ops8tKMe1hRm/qunYpOzy42TwI2Snh3X8CkQo8XH+1V4G9JG6XXZUBOgvB1m7EV+nXd1wouJa1qsv Kslsn/hqrbbmekEabNqKwNy/as0mVEYviPQoz8tgy4ne/8KgxmoWK845CkwZEDsVXyxKWJwVvyGCI ZFXWRWm1SqUzTX8lCVwzGFZwCYrRlu4WmprkwiV7FpIcqusBCWqusfz3x3yvMQYDo6+MusBzbD19d GkJNHpmQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qAacT-00462W-01; Sat, 17 Jun 2023 18:25:53 +0000 Received: from s.wrqvtbkv.outbound-mail.sendgrid.net ([149.72.123.24]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qAacQ-00460Y-0H for linux-rockchip@lists.infradead.org; Sat, 17 Jun 2023 18:25:51 +0000 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/5JGh2pJ61XLKtbB+FeJaPIZzPAoxxT4qnltGBr5CKt6eBL+ak/0Mrp3u9q9YpcdcPNwFcxCEmzwzmRjzYWZ2XVlcfr9sgWx4D1e/r3pZCdSw== 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230617_112550_185417_F898570E X-CRM114-Status: GOOD ( 11.06 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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[] = {