From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f47.google.com (mail-ej1-f47.google.com [209.85.218.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F2EA7B for ; Thu, 28 Apr 2022 05:35:27 +0000 (UTC) Received: by mail-ej1-f47.google.com with SMTP id gh6so7414033ejb.0 for ; Wed, 27 Apr 2022 22:35:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=n6GB1/WywBgvh+64+Tjj1z6mIuDmSgmvtpDpu9gTFhI=; b=Sk9QjBASR1ZDnIiWemIfYQHAyckj3WwUQ0Dk1x8vUbtZKw+Ps2RXC6ddu1yuaUfDpB gMi/A8uQw0hEu+F47+bjMp3t0QSCs67/abhdlEHByg/jPyQayH7pn4Niiz8YRh5dR/se xln6tUHCH2ERr0czmm5bEvYM2ukGDy9YomaBo1EqTSTx4xoNVJ08d1wBBXiam8xKQTnx m2eyYfCopyih6EYsIGG1jf7cGgoW/UdVQ6fuA03CTOCzsi1Xz/KgZtBjOu5G13Jw3OOq KE1LJORJpVZYpyh+W5+KQw59PhV/1nUPGPeM7fCd356wan6bL63d95Hnn1EfATYDBxWT v/mQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=n6GB1/WywBgvh+64+Tjj1z6mIuDmSgmvtpDpu9gTFhI=; b=DXUv5t/4oHh+02ELDGlhD7iOqylRzEhgLG+UE6Xex9ckJ6f/3KZ8ckuE5s25kgFhk6 D5xGqhgFrM4mbU1hncbVr3QKUXiH4endywTCd+A8H94jPn0gqxkVjxXdq/DpNNmLqTPU 2R4LdSlZe38G+aKbnjfGjuziakvhD/2LztPdf/oZl0yOlJ33vIg13DnpC4R3HnVbjU16 7V/ksx5ZpB8ucxWlNd29242yfB1QSZUkE4AA4qBsgyYJ/1Nld9iq1aHWBGsJzDkn4WL/ K0b4S5Ye19o89w7TXxZ5+GDBVBDFyOCQQ2qHCuteuxvi2mClYFTX/u2Ly9uAr0drIP3I k33w== X-Gm-Message-State: AOAM533a5dAf3R5ss6r3o4PBgjUXHM4JELPm+nhwXKWBgs7ofTB5799R VBAdoOH+Ne6qiEyTC+ZPHPhrAUPrxzjnhw== X-Google-Smtp-Source: ABdhPJxOTXVpvT//Cj+0qyGctmcgG8tu4Sgrf5+zvtxXeIcbwKP79h4Ibc/zhuPFP2T8AkYgQw4Smw== X-Received: by 2002:a17:907:72cd:b0:6f3:a068:a2ce with SMTP id du13-20020a17090772cd00b006f3a068a2cemr16041538ejc.563.1651124126336; Wed, 27 Apr 2022 22:35:26 -0700 (PDT) Received: from jernej-laptop.localnet (89-212-118-115.static.t-2.net. [89.212.118.115]) by smtp.gmail.com with ESMTPSA id b6-20020aa7cd06000000b0042617ba63a9sm886885edw.51.2022.04.27.22.35.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Apr 2022 22:35:25 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Joerg Roedel , Will Deacon , iommu@lists.linux-foundation.org, Samuel Holland Cc: Heiko Stuebner , Palmer Dabbelt , linux-riscv@lists.infradead.org, Samuel Holland , Chen-Yu Tsai , Krzysztof Kozlowski , Maxime Ripard , Philipp Zabel , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH 5/5] iommu/sun50i: Ensure the IOMMU can be used for DMA Date: Thu, 28 Apr 2022 07:35:24 +0200 Message-ID: <1762951.8hzESeGDPO@jernej-laptop> In-Reply-To: <20220428010401.11323-6-samuel@sholland.org> References: <20220428010401.11323-1-samuel@sholland.org> <20220428010401.11323-6-samuel@sholland.org> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Dne =C4=8Detrtek, 28. april 2022 ob 03:04:00 CEST je Samuel Holland napisal= (a): > So far, the driver has relied on arch/arm64/Kconfig to select IOMMU_DMA. > Unsurprisingly, this does not work on RISC-V, so the driver must select > IOMMU_DMA itself. >=20 > Signed-off-by: Samuel Holland Reviewed-by: Jernej Skrabec Best regards, Jernej > --- >=20 > drivers/iommu/Kconfig | 1 + > 1 file changed, 1 insertion(+) >=20 > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > index c79a0df090c0..70a0bfa6d907 100644 > --- a/drivers/iommu/Kconfig > +++ b/drivers/iommu/Kconfig > @@ -223,6 +223,7 @@ config SUN50I_IOMMU > depends on ARCH_SUNXI || COMPILE_TEST > select ARM_DMA_USE_IOMMU > select IOMMU_API > + select IOMMU_DMA > help > Support for the IOMMU introduced in the Allwinner H6 SoCs.