From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A03A3C433B4 for ; Fri, 14 May 2021 10:02:54 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 330306101D for ; Fri, 14 May 2021 10:02:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 330306101D Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=y3VGe0g7K3qZ/Vci7uQj1WQIukfL4M7J/YbyYsZBYpM=; b=Fh810I3Bx3BNKoskdOJWj0lMw UWWNzfcFW6HvrQBv6pQuMHM6RlwarkSOkhrtxZ5JOuXtntiwbNsyWXXpzXzxXtNNJ6d9OZxTDEcr0 qYmDyOsM8a8jI/7bZQIy1bDgVqOHgqnQ4weXAiuBxAuyd3wOJSIlfHIhJLhYY6y8docfoaB2tRoCA OzgCPnP1f22Hney0KCLFCZc9Un9IKi+MYhleRL/7kAN0uFoojXffLif1RR4jCWDU8fqLlYsmTK2yY vsY+e1yMHnI8G02vX63IO8OjgUmlAklDrnNv8MZcreEt5KTQRWlj3UH/DGu0ymdPiqPMwUJcwJwe2 4SQjY8MpA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lhUd2-007iaG-1K; Fri, 14 May 2021 10:01:08 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lhUcx-007iZt-MP for linux-arm-kernel@desiato.infradead.org; Fri, 14 May 2021 10:01:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Type:In-Reply-To:MIME-Version :Date:Message-ID:From:References:Cc:To:Subject:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=S1AasyfX6dCn7eKy9VmzPxCNY0w7MLgEqeTYoimG95M=; b=LWu9VKIT+w3hndhlnpy48InoPs CeO0WkhSggutO3rc8Tt8FZ7UvIEDedgQ0I2dpEL2EtWDmJjHMujP3sY9GyWdE3S5auK+lwdyAcJkB YI9mTjUU8eyJQi5zrxYiWzNp6TfNxTuUVI0yg9B/85MrZAATxlYWOQOtGlksK3zaE9iLiaj8gVeaO bml8svo01gwv0KPqoRVxZoGyUXIOukBUdwb0HLus4xv+V/hddmWRQlB4mq2V11oqn/61ecnI3mxVi s1p2kIIrP5k2sEIF9DgWGVUs2i/1HRELyuTIS9x5jBfKepX63eNANs3r99dDrIq/xOkjXZKbI79m6 wcGit7FA==; Received: from mx2.suse.de ([195.135.220.15]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lhUcu-00Bsj1-DV for linux-arm-kernel@lists.infradead.org; Fri, 14 May 2021 10:01:01 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1620986454; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=S1AasyfX6dCn7eKy9VmzPxCNY0w7MLgEqeTYoimG95M=; b=KVjFKKs3eW6M1ftQosK1jd9O4JCjhh7bDVra+G9S7eY4zNb2nMVaxyFlDKw2s1tXtp3Om9 MBpKRArS4dNSMhlFSzZH4u4o6WNLwF3usk9J2O0ldHOlzvnKC6dnXVotQlPYfpUxtVZEOQ k8Ls81Uq5qKk6Li/oW2mLVKtnfOlXs0= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 6BE3AABF6; Fri, 14 May 2021 10:00:54 +0000 (UTC) Subject: Re: [PATCH v2 2/3] arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required To: Stefano Stabellini , xen-devel@lists.xenproject.org Cc: boris.ostrovsky@oracle.com, hch@lst.de, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, Stefano Stabellini References: <20210512201823.1963-2-sstabellini@kernel.org> From: Juergen Gross Message-ID: <12d992d9-30de-2d74-9e87-5e5dfdf8e785@suse.com> Date: Fri, 14 May 2021 12:00:53 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210512201823.1963-2-sstabellini@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210514_030100_800189_4FDF93CA X-CRM114-Status: GOOD ( 13.51 ) 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: , Content-Type: multipart/mixed; boundary="===============1566198997357317105==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============1566198997357317105== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="4LHxa7KdNQCrLvpAMN7ARqgIqLpVDMjIM" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --4LHxa7KdNQCrLvpAMN7ARqgIqLpVDMjIM Content-Type: multipart/mixed; boundary="RlFh2c8j1O0H9rdQGzratxOGFlAhxMIMn"; protected-headers="v1" From: Juergen Gross To: Stefano Stabellini , xen-devel@lists.xenproject.org Cc: boris.ostrovsky@oracle.com, hch@lst.de, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, Stefano Stabellini Message-ID: <12d992d9-30de-2d74-9e87-5e5dfdf8e785@suse.com> Subject: Re: [PATCH v2 2/3] arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required References: <20210512201823.1963-2-sstabellini@kernel.org> In-Reply-To: <20210512201823.1963-2-sstabellini@kernel.org> --RlFh2c8j1O0H9rdQGzratxOGFlAhxMIMn Content-Type: multipart/mixed; boundary="------------653F18E978F1107FBF01B043" Content-Language: en-US This is a multi-part message in MIME format. --------------653F18E978F1107FBF01B043 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 12.05.21 22:18, Stefano Stabellini wrote: > From: Christoph Hellwig >=20 > Although SWIOTLB_NO_FORCE is meant to allow later calls to swiotlb_init= , > today dma_direct_map_page returns error if SWIOTLB_NO_FORCE. >=20 > For now, without a larger overhaul of SWIOTLB_NO_FORCE, the best we can= > do is to avoid setting SWIOTLB_NO_FORCE in mem_init when we know that i= t > is going to be required later (e.g. Xen requires it). >=20 > CC: boris.ostrovsky@oracle.com > CC: jgross@suse.com > CC: catalin.marinas@arm.com > CC: will@kernel.org > CC: linux-arm-kernel@lists.infradead.org > Fixes: 2726bf3ff252 ("swiotlb: Make SWIOTLB_NO_FORCE perform no allocat= ion") > Signed-off-by: Christoph Hellwig > Signed-off-by: Stefano Stabellini Reviewed-by: Juergen Gross Juergen --------------653F18E978F1107FBF01B043 Content-Type: application/pgp-keys; name="OpenPGP_0xB0DE9DD628BF132F.asc" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="OpenPGP_0xB0DE9DD628BF132F.asc" -----BEGIN PGP PUBLIC KEY BLOCK----- xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjrioyspZKOBy= cWx w3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2kaV2KL9650I1SJvedYm8O= f8Z d621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i1TXkH09XSSI8mEQ/ouNcMvIJNwQpd369y= 9bf IhWUiVXEK7MlRgUG6MvIj6Y3Am/BBLUVbDa4+gmzDC9ezlZkTZG2t14zWPvxXP3FAp2pkW0xq= G7/ 377qptDmrk42GlSKN4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEBAAHNHEp1ZXJnZW4gR= 3Jv c3MgPGpnQHBmdXBmLm5ldD7CwHkEEwECACMFAlOMcBYCGwMHCwkIBwMCAQYVCAIJCgsEFgIDA= QIe AQIXgAAKCRCw3p3WKL8TL0KdB/93FcIZ3GCNwFU0u3EjNbNjmXBKDY4FUGNQH2lvWAUy+dnyT= hpw dtF/jQ6j9RwE8VP0+NXcYpGJDWlNb9/JmYqLiX2Q3TyevpB0CA3dbBQp0OW0fgCetToGIQrg0= MbD 1C/sEOv8Mr4NAfbauXjZlvTj30H2jO0u+6WGM6nHwbh2l5O8ZiHkH32iaSTfN7Eu5RnNVUJbv= oPH Z8SlM4KWm8rG+lIkGurqqu5gu8q8ZMKdsdGC4bBxdQKDKHEFExLJK/nRPFmAuGlId1E3fe10v= 5QL +qHI3EIPtyfE7i9Hz6rVwi7lWKgh7pe0ZvatAudZ+JNIlBKptb64FaiIOAWDCx1SzR9KdWVyZ= 2Vu IEdyb3NzIDxqZ3Jvc3NAc3VzZS5jb20+wsB5BBMBAgAjBQJTjHCvAhsDBwsJCAcDAgEGFQgCC= QoL BBYCAwECHgECF4AACgkQsN6d1ii/Ey/HmQf/RtI7kv5A2PS4RF7HoZhPVPogNVbC4YA6lW7Dr= Wf0 teC0RR3MzXfy6pJ+7KLgkqMlrAbN/8Dvjoz78X+5vhH/rDLa9BuZQlhFmvcGtCF8eR0T1v0nC= /nu AFVGy+67q2DH8As3KPu0344TBDpAvr2uYM4tSqxK4DURx5INz4ZZ0WNFHcqsfvlGJALDeE0Lh= ITT d9jLzdDad1pQSToCnLl6SBJZjDOX9QQcyUigZFtCXFst4dlsvddrxyqT1f17+2cFSdu7+ynLm= XBK 7abQ3rwJY8SbRO2iRulogc5vr/RLMMlscDAiDkaFQWLoqHHOdfO9rURssHNN8WkMnQfvUewRz= 80h SnVlcmdlbiBHcm9zcyA8amdyb3NzQG5vdmVsbC5jb20+wsB5BBMBAgAjBQJTjHDXAhsDBwsJC= AcD AgEGFQgCCQoLBBYCAwECHgECF4AACgkQsN6d1ii/Ey8PUQf/ehmgCI9jB9hlgexLvgOtf7PJn= FOX gMLdBQgBlVPO3/D9R8LtF9DBAFPNhlrsfIG/SqICoRCqUcJ96Pn3P7UUinFG/I0ECGF4EvTE1= jnD kfJZr6jrbjgyoZHiw/4BNwSTL9rWASyLgqlA8u1mf+c2yUwcGhgkRAd1gOwungxcwzwqgljf0= N51 N5JfVRHRtyfwq/ge+YEkDGcTU6Y0sPOuj4Dyfm8fJzdfHNQsWq3PnczLVELStJNdapwPOoE+l= otu fe3AM2vAEYJ9rTz3Cki4JFUsgLkHFqGZarrPGi1eyQcXeluldO3m91NK/1xMI3/+8jbO0tsn1= tqS EUGIJi7ox80eSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuZGU+wsB5BBMBAgAjBQJTjHDrA= hsD BwsJCAcDAgEGFQgCCQoLBBYCAwECHgECF4AACgkQsN6d1ii/Ey+LhQf9GL45eU5vOowA2u5N3= g3O ZUEBmDHVVbqMtzwlmNC4k9Kx39r5s2vcFl4tXqW7g9/ViXYuiDXb0RfUpZiIUW89siKrkzmQ5= dM7 wRqzgJpJwK8Bn2MIxAKArekWpiCKvBOB/Cc+3EXE78XdlxLyOi/NrmSGRIov0karw2RzMNOu5= D+j LRZQd1Sv27AR+IP3I8U4aqnhLpwhK7MEy9oCILlgZ1QZe49kpcumcZKORmzBTNh30FVKK1Evm= V2x AKDoaEOgQB4iFQLhJCdP1I5aSgM5IVFdn7v5YgEYuJYx37IoN1EblHI//x/e2AaIHpzK5h88N= Eaw QsaNRpNSrcfbFmAg987ATQRTjHAWAQgAyzH6AOODMBjgfWE9VeCgsrwH3exNAU32gLq2xvjpW= nHI s98ndPUDpnoxWQugJ6MpMncr0xSwFmHEgnSEjK/PAjppgmyc57BwKII3sV4on+gDVFJR6Y8ZR= wgn BC5mVM6JjQ5xDk8WRXljExRfUX9pNhdE5eBOZJrDRoLUmmjDtKzWaDhIg/+1Hzz93X4fCQkNV= bVF LELU9bMaLPBG/x5q4iYZ2k2ex6d47YE1ZFdMm6YBYMOljGkZKwYde5ldM9mo45mmwe0icXKLk= pEd IXKTZeKDO+Hdv1aqFuAcccTg9RXDQjmwhC3yEmrmcfl0+rPghO0Iv3OOImwTEe4co3c1mwARA= QAB wsBfBBgBAgAJBQJTjHAWAhsMAAoJELDendYovxMvQ/gH/1ha96vm4P/L+bQpJwrZ/dneZcmEw= Tbe 8YFsw2V/Buv6Z4Mysln3nQK5ZadD534CF7TDVft7fC4tU4PONxF5D+/tvgkPfDAfF77zy2AH1= vJz Q1fOU8lYFpZXTXIHb+559UqvIB8AdgR3SAJGHHt4RKA0F7f5ipYBBrC6cyXJyyoprT10EMvU8= VGi wXvTyJz3fjoYsdFzpWPlJEBRMedCot60g5dmbdrZ5DWClAr0yau47zpWj3enf1tLWaqcsuylW= svi uGjKGw7KHQd3bxALOknAp4dN3QwBYCKuZ7AddY9yjynVaD5X7nF9nO5BjR/i1DG86lem3iBDX= zXs ZDn8R38=3D =3D2wuH -----END PGP PUBLIC KEY BLOCK----- --------------653F18E978F1107FBF01B043-- --RlFh2c8j1O0H9rdQGzratxOGFlAhxMIMn-- --4LHxa7KdNQCrLvpAMN7ARqgIqLpVDMjIM Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsB5BAABCAAjFiEEhRJncuj2BJSl0Jf3sN6d1ii/Ey8FAmCeSlUFAwAAAAAACgkQsN6d1ii/Ey8l OggAif18ZgrsFLVdYp+O0xPpes+xFlJKXgKPZayoWc2m1hSqUAFdmf6xQIux2zdRRedU4m2xOr2u hKk69P6JQIIYm7cRyQ79HAlhjNWRWuioOyQG5DIJK5cMRyJOGjgyN7lgnunhStsoJ1/IAdgdPVbw ta5gnV2mk2RsaiWupp9AZIBg2RxF/r/SsCG7ehVMJsB1pJU8eIrtGdgC7JqjUErDopk4RBo7/wxf g3O+CTKu4wZUvAH9mgVbQ6sOnQ0XWDKWpl4BDqgDnLEuz1tD8OW/uK4qNrKY5Zi+7R51hk6lXzHr nOPCUkxYH1vZBHEU8ceH4M1I7aQYEfYrmkzuGj/1tQ== =Lz5u -----END PGP SIGNATURE----- --4LHxa7KdNQCrLvpAMN7ARqgIqLpVDMjIM-- --===============1566198997357317105== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============1566198997357317105==--