From patchwork Mon Feb 10 19:39:55 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alyssa Rosenzweig X-Patchwork-Id: 13969072 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 8A8D2C02198 for ; Mon, 10 Feb 2025 19:46:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fjtngZOALj0IdzC20tSSm4wP6kwl37jWj1bmM1dPR3M=; b=cHKxK977cq84sgRANKAt7why85 PDnh8I1DGNc/cIuN9ZZT23KqCjPGocjoS6grqHLH0RPRZrcspoJMbr/EcY0+MUxK5D/C03itfJUe9 +pFM3hWnGQNojGC1WiZjw63tSmLgtISSRcG53m4r192HFbgcZYTYFWUdrZ1MZruFtL6oiCcky22dq 56Gj+8TYxvUbUoYPLTeyT6ur0JP+vsC43HN9jdpPb+WfrJeRf85DjEiO5MEsfUecFYmIPn4p1d7cK gtkzmCSCV1mFzGf9KYGVZBxjBZ6OsOLMlx1pUCXFkO2Tlw/BUYdwEyfZx3GbLXMZh1TUuTZvkfLt1 hNyKr7tA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thZjL-00000001Cew-4AMZ; Mon, 10 Feb 2025 19:46:07 +0000 Received: from out-178.mta0.migadu.com ([91.218.175.178]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1thZdr-00000001AQO-0IGc for linux-arm-kernel@lists.infradead.org; Mon, 10 Feb 2025 19:40:28 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rosenzweig.io; s=key1; t=1739216425; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fjtngZOALj0IdzC20tSSm4wP6kwl37jWj1bmM1dPR3M=; b=YP6oko9ydeGKDbCUXgUWDwZx7AmLeQHdkfPPiX0YgmxNqrGYhqcaz16AyITxVHYxiPRlDd mWzZ7zimIZuEzTq8TDoZcSIU17UGviFlmVa07thtRUEHeLayJI5Jz5t0sTASdLbc3PLS0r nMxuy6Ygqq3pi/c8mE5yzYDutR/en9KdJy/Zy0g4LowvqEEzgAt1f5mU/5KoY1LJKGn4mm 7gDC7Gvb/xYrwa0QdJZufBcHz6mhrDI/21uLeDyZuxcX7sJO+t/p+ENgXGRNYi6p0dARAg Y22uBXJpWc/XwZfKIPQkdwlHxKpGXfqiO0O3d5s+dggAE776izoT0+XwH5tP0Q== From: Alyssa Rosenzweig Date: Mon, 10 Feb 2025 14:39:55 -0500 Subject: [PATCH 3/5] iommu/dart: Set DMA domain for locked DARTs MIME-Version: 1.0 Message-Id: <20250210-locked-dart-v1-3-5d97fe247f35@rosenzweig.io> References: <20250210-locked-dart-v1-0-5d97fe247f35@rosenzweig.io> In-Reply-To: <20250210-locked-dart-v1-0-5d97fe247f35@rosenzweig.io> To: Sven Peter , Janne Grunau , Joerg Roedel , Will Deacon , Robin Murphy Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Alyssa Rosenzweig X-Developer-Signature: v=1; a=openpgp-sha256; l=688; i=alyssa@rosenzweig.io; h=from:subject:message-id; bh=vfY3Ml+fLw1XdmnLqUIQmLLEE3BWPKNL9c3pG0gr//M=; b=owEBbQKS/ZANAwAIAf7+UFoK9VgNAcsmYgBnqlYZaLYJk9YI39mlAZ7tjhDRbEXzpCnX3HelN hhl52qjIAWJAjMEAAEIAB0WIQRDXuCbsK8A0B2q9jj+/lBaCvVYDQUCZ6pWGQAKCRD+/lBaCvVY DQTKD/90hufX4dDRXOyWEiQmFI/VWv/5QX3qjHE7OWRfK5qgiPC5/291LA6X0ncH8GkjUPvV26O EQRBjaKcB4ej74zuhj/haSG8A+jR3JtYIlzwq4PQ0zcFVjQDCSA9KD5Pt9lZrrvKfCOv2jdlVd+ el3H4KQ3d0VqveZcUjfQF5iqWFakbituKGIhVCIdKWThMh+gh+rf6An8U+aPx6LFc4nvizzKMGu Lnp4SX/ZTEODdKwWzeG4VnbtRt5yOlvpA3jeWgFPre1K+SJNL8O1hbXkjtX4QEQyGMEt3cbmk3K xzjQkofbN2ljTPKrgBPcMQKnqGmBr5uM4aTUkHou4m/mkx24VAUrlWZf3+kM+wU6v4iE17mmxf0 /DkHDg+QIKnqFtbfBSqYn+dNGUR+a4UE3t0lktQu0VRd6efUrd06sAwoUs91QcQviVYaRmHAzSL Ch82dZ/XLzlPC14r0hnmjaPmnFDlKXw1z9z68Pxpnbz1w0RPwI0nyhCgCwffvxBsr5xpij94Rj7 Ot+9UAEgQXk7Q5g4rTckNe/A+nRr1GZmOERATyyZFI4wehp9rYB8t3mZgbaFJ7E3bfXIlGDr7rP I+QCjuC2ov+yTcJ+ZPLi42kCmMGb0G/9pPn59Z8JNaI3SLY1cFcxpcXLQj4HSSLcXWmMQWhi7hC lDZ3xcY606Wx95Q== X-Developer-Key: i=alyssa@rosenzweig.io; a=openpgp; fpr=435EE09BB0AF00D01DAAF638FEFE505A0AF5580D X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250210_114027_255232_D98F619B X-CRM114-Status: UNSURE ( 8.69 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is required. Signed-off-by: Alyssa Rosenzweig --- drivers/iommu/apple-dart.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index 9c74a95eb7e819e94ab2fb47ed0d411a1eba8bf7..9c6f780dc7220096ed6bba692fa1a4bd859b0d61 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -941,6 +941,8 @@ static int apple_dart_def_domain_type(struct device *dev) return IOMMU_DOMAIN_IDENTITY; if (!cfg->stream_maps[0].dart->supports_bypass) return IOMMU_DOMAIN_DMA; + if (cfg->stream_maps[0].dart->locked) + return IOMMU_DOMAIN_DMA; return 0; }