From nobody Tue Feb 10 15:45:14 2026 Received: from out-185.mta0.migadu.com (out-185.mta0.migadu.com [91.218.175.185]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2383C25C712 for ; Mon, 10 Feb 2025 19:40:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.185 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739216429; cv=none; b=oT0uCDIJ6syixiowRGZpxNy5It8TeNZuczTCP4ZDivp8N82YogpVNkF1zbsKsA5RHMx8PYnICwuK8QWi/CZwHfh0UFVgxfS22ID+aPyI+TydXZpCyfvX23zoCCPcmGpteMN/f8oSU2pYeWym9BhxlgGhUurEfozycC/zk0pKF+g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739216429; c=relaxed/simple; bh=vfY3Ml+fLw1XdmnLqUIQmLLEE3BWPKNL9c3pG0gr//M=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ANkDMQyS96dFgn2oC6nsxeUQ287uusZ2//1GqwWsESVv9PSUOZYdlZtAtowp25u4nKVxkGl7XaWGjlPTN4Qvd+imc1nDFcGICOMh7qgoVAy3wXQGiYumEzGiwYVf5CXUxrJ/SVGG+2CKMIeAhxoCFi8p+eDbJZbUpVaW9n5TV7E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=rosenzweig.io; spf=pass smtp.mailfrom=rosenzweig.io; dkim=pass (2048-bit key) header.d=rosenzweig.io header.i=@rosenzweig.io header.b=YP6oko9y; arc=none smtp.client-ip=91.218.175.185 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=rosenzweig.io Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rosenzweig.io Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rosenzweig.io header.i=@rosenzweig.io header.b="YP6oko9y" 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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 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..9c6f780dc7220096ed6bba692fa= 1a4bd859b0d61 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 *de= v) 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; =20 return 0; } --=20 2.48.1