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Fri, 13 Dec 2019 03:46:16 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50550) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ifgZf-0006ak-3Z for qemu-devel@nongnu.org; Fri, 13 Dec 2019 03:45:24 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ifgZe-0001Wl-0Z for qemu-devel@nongnu.org; Fri, 13 Dec 2019 03:45:23 -0500 Received: from mout.kundenserver.de ([217.72.192.75]:55501) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ifgZb-0001Q0-KY; Fri, 13 Dec 2019 03:45:19 -0500 Received: from [192.168.100.1] ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue107 [213.165.67.119]) with ESMTPSA (Nemesis) id 1MXYAj-1iDKUR3wyd-00Yy05; Fri, 13 Dec 2019 09:45:13 +0100 To: David Gibson References: <20191212194359.13508-1-laurent@vivier.eu> <20191213014419.GA207300@umbus.fritz.box> From: Laurent Vivier Autocrypt: addr=laurent@vivier.eu; prefer-encrypt=mutual; keydata= mQINBFYFJhkBEAC2me7w2+RizYOKZM+vZCx69GTewOwqzHrrHSG07MUAxJ6AY29/+HYf6EY2 WoeuLWDmXE7A3oJoIsRecD6BXHTb0OYS20lS608anr3B0xn5g0BX7es9Mw+hV/pL+63EOCVm SUVTEQwbGQN62guOKnJJJfphbbv82glIC/Ei4Ky8BwZkUuXd7d5NFJKC9/GDrbWdj75cDNQx UZ9XXbXEKY9MHX83Uy7JFoiFDMOVHn55HnncflUncO0zDzY7CxFeQFwYRbsCXOUL9yBtqLer Ky8/yjBskIlNrp0uQSt9LMoMsdSjYLYhvk1StsNPg74+s4u0Q6z45+l8RAsgLw5OLtTa+ePM JyS7OIGNYxAX6eZk1+91a6tnqfyPcMbduxyBaYXn94HUG162BeuyBkbNoIDkB7pCByed1A7q q9/FbuTDwgVGVLYthYSfTtN0Y60OgNkWCMtFwKxRaXt1WFA5ceqinN/XkgA+vf2Ch72zBkJL RBIhfOPFv5f2Hkkj0MvsUXpOWaOjatiu0fpPo6Hw14UEpywke1zN4NKubApQOlNKZZC4hu6/ 8pv2t4HRi7s0K88jQYBRPObjrN5+owtI51xMaYzvPitHQ2053LmgsOdN9EKOqZeHAYG2SmRW LOxYWKX14YkZI5j/TXfKlTpwSMvXho+efN4kgFvFmP6WT+tPnwARAQABtCJMYXVyZW50IFZp dmllciA8bGF1cmVudEB2aXZpZXIuZXU+iQI4BBMBAgAiBQJWBTDeAhsDBgsJCAcDAgYVCAIJ CgsEFgIDAQIeAQIXgAAKCRDzDDi9Py++PCEdD/oD8LD5UWxhQrMQCsUgLlXCSM7sxGLkwmmF ozqSSljEGRhffxZvO35wMFcdX9Z0QOabVoFTKrT04YmvbjsErh/dP5zeM/4EhUByeOS7s6Yl HubMXVQTkak9Wa9Eq6irYC6L41QNzz/oTwNEqL1weV1+XC3TNnht9B76lIaELyrJvRfgsp9M rE+PzGPo5h7QHWdL/Cmu8yOtPLa8Y6l/ywEJ040IoiAUfzRoaJs2csMXf0eU6gVBhCJ4bs91 jtWTXhkzdl4tdV+NOwj3j0ukPy+RjqeL2Ej+bomnPTOW8nAZ32dapmu7Fj7VApuQO/BSIHyO NkowMMjB46yohEepJaJZkcgseaus0x960c4ua/SUm/Nm6vioRsxyUmWd2nG0m089pp8LPopq WfAk1l4GciiMepp1Cxn7cnn1kmG6fhzedXZ/8FzsKjvx/aVeZwoEmucA42uGJ3Vk9TiVdZes lqMITkHqDIpHjC79xzlWkXOsDbA2UY/P18AtgJEZQPXbcrRBtdSifCuXdDfHvI+3exIdTpvj BfbgZAar8x+lcsQBugvktlQWPfAXZu4Shobi3/mDYMEDOE92dnNRD2ChNXg2IuvAL4OW40wh gXlkHC1ZgToNGoYVvGcZFug1NI+vCeCFchX+L3bXyLMg3rAfWMFPAZLzn42plIDMsBs+x2yP +bkCDQRWBSYZARAAvFJBFuX9A6eayxUPFaEczlMbGXugs0mazbOYGlyaWsiyfyc3PStHLFPj rSTaeJpPCjBJErwpZUN4BbpkBpaJiMuVO6egrC8Xy8/cnJakHPR2JPEvmj7Gm/L9DphTcE15 92rxXLesWzGBbuYxKsj8LEnrrvLyi3kNW6B5LY3Id+ZmU8YTQ2zLuGV5tLiWKKxc6s3eMXNq wrJTCzdVd6ThXrmUfAHbcFXOycUyf9vD+s+WKpcZzCXwKgm7x1LKsJx3UhuzT8ier1L363RW ZaJBZ9CTPiu8R5NCSn9V+BnrP3wlFbtLqXp6imGhazT9nJF86b5BVKpF8Vl3F0/Y+UZ4gUwL d9cmDKBcmQU/JaRUSWvvolNu1IewZZu3rFSVgcpdaj7F/1aC0t5vLdx9KQRyEAKvEOtCmP4m 38kU/6r33t3JuTJnkigda4+Sfu5kYGsogeYG6dNyjX5wpK5GJIJikEhdkwcLM+BUOOTi+I9u tX03BGSZo7FW/J7S9y0l5a8nooDs2gBRGmUgYKqQJHCDQyYut+hmcr+BGpUn9/pp2FTWijrP inb/Pc96YDQLQA1q2AeAFv3Rx3XoBTGl0RCY4KZ02c0kX/dm3eKfMX40XMegzlXCrqtzUk+N 8LeipEsnOoAQcEONAWWo1HcgUIgCjhJhBEF0AcELOQzitbJGG5UAEQEAAYkCHwQYAQIACQUC VgUmGQIbDAAKCRDzDDi9Py++PCD3D/9VCtydWDdOyMTJvEMRQGbx0GacqpydMEWbE3kUW0ha US5jz5gyJZHKR3wuf1En/3z+CEAEfP1M3xNGjZvpaKZXrgWaVWfXtGLoWAVTfE231NMQKGoB w2Dzx5ivIqxikXB6AanBSVpRpoaHWb06tPNxDL6SVV9lZpUn03DSR6gZEZvyPheNWkvz7bE6 FcqszV/PNvwm0C5Ju7NlJA8PBAQjkIorGnvN/vonbVh5GsRbhYPOc/JVwNNr63P76rZL8Gk/ hb3xtcIEi5CCzab45+URG/lzc6OV2nTj9Lg0SNcRhFZ2ILE3txrmI+aXmAu26+EkxLLfqCVT ohb2SffQha5KgGlOSBXustQSGH0yzzZVZb+HZPEvx6d/HjQ+t9sO1bCpEgPdZjyMuuMp9N1H ctbwGdQM2Qb5zgXO+8ZSzwC+6rHHIdtcB8PH2j+Nd88dVGYlWFKZ36ELeZxD7iJflsE8E8yg OpKgu3nD0ahBDqANU/ZmNNarBJEwvM2vfusmNnWm3QMIwxNuJghRyuFfx694Im1js0ZY3LEU JGSHFG4ZynA+ZFUPA6Xf0wHeJOxGKCGIyeKORsteIqgnkINW9fnKJw2pgk8qHkwVc3Vu+wGS ZiJK0xFusPQehjWTHn9WjMG1zvQ5TQQHxau/2FkP45+nRPco6vVFQe8JmgtRF8WFJA== Subject: Re: [PATCH] mos6522: remove anh register Message-ID: <68431265-fd33-89de-6a61-0c823beaa16e@vivier.eu> Date: Fri, 13 Dec 2019 09:45:09 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20191213014419.GA207300@umbus.fritz.box> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="SPf22y5OKl0BjgXK5D5AvFnt5K7iAgp8I" X-Provags-ID: V03:K1:eNPV6CvwN5KgFxg+SJs2ZbGsUjrL888us40gHsUd0ch5Gy5j6jV +VskudJhsWW8QrBVQaFARgfWmLBaEUmoTEydRQH+8cLV7MP3QxgawnW5i1GWhUUoGYODD2t hyw6kHj+n0fhQG+hnrFBMTlVbJvQtOcBQQzuP8XJpVVEKVqz4luF1XY5rPnwca9T8QKlbuP ojcLvyUx8wNYI66kMvK4A== X-UI-Out-Filterresults: notjunk:1;V03:K0:KuBGLt9EL7s=:vrZBaxl3fB/xxs58O4Q8BB C66+FKDOkWSN8xCVy0iHKhaTrBLhPnNgUiTRkRau1hNg41/FWt7nYAA/lCdHja6CO65Qn1Hno cCpkUosSYXc0YUTtCulRnNCdY6ZY7ZQFzcEcu9JKUKmbBl0LZqbiko5wuYMCdIUiFhPxwvRX5 w4JRnSYdda2uKOXPLr9ywdfwNf0F0rA3aP2K5faV9hLPLSiROCkJU4oqWaip98P9KHXNGRHiK jQQI1qYMw/w8fgHiwodvYsdSeVgaiRlcYg8CyTQA1nJ+4Nt/JoA23vn1Zk6tMQypq5dA60O8y Utnh6lbAjRvL59xR7HJVAvo1Yy7z4gyQSo2vmBDKt/X/o6/CHLdSanEZFhFpr19kbIfN8af7A zhflZXIBmPlOtxXFw45Xjmm20weENDJQY8yrv+xBxUNGrNwWYvYEWSFxLEP+neOkdD/5CNz69 BkA+vPF/55fJkBHL9IUMW1lbciUCy1MqyIDVdqdKNyQ4NM3K34KLhVlZ2RB9te7zmghE0V6Tz oyV6AiH8VEaagTkvGxvx5YpDbkwP7gdSYi4CVDcYw/Dl/dzjpc7sDNtkRf9lc+ohjNeWL1UPU MLr3koYnWp+56etNu1a8IYwPy9OJ0lnBe6tNom1NwP+OCJrcpSvwuppxRVf9p9wstiZmzoe1P zwyHuCG+tg9ZFRVEJsMvPiUWHPTDCes9T2k+e8q/Q6lHbQKx4A3EhzkQRP1NfM56yluMrOdyO 8UN/UP+9m7Y5UIJc1G/PKb/KejnC4hPCspRoZde3Hy/eGjW/pdtlX9LQJ/e1J+X4G7rXu/rv3 UW2jrCFZPhzavpILeVPHLTkGVC/7IfXMavSD8KeP2sJRp2PxxSrmeNHfotKD5clQLFevDplBJ ni79YovBh7wxRu2wRUgg== X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 217.72.192.75 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Cave-Ayland , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --SPf22y5OKl0BjgXK5D5AvFnt5K7iAgp8I Content-Type: multipart/mixed; boundary="eHV0s9Z4fbVUf5TKjkERSSsky7JcfX75d"; protected-headers="v1" From: Laurent Vivier To: David Gibson Cc: qemu-devel@nongnu.org, qemu-ppc@nongnu.org, "Dr . David Alan Gilbert" , Mark Cave-Ayland Message-ID: <68431265-fd33-89de-6a61-0c823beaa16e@vivier.eu> Subject: Re: [PATCH] mos6522: remove anh register References: <20191212194359.13508-1-laurent@vivier.eu> <20191213014419.GA207300@umbus.fritz.box> In-Reply-To: <20191213014419.GA207300@umbus.fritz.box> --eHV0s9Z4fbVUf5TKjkERSSsky7JcfX75d Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: quoted-printable Le 13/12/2019 =C3=A0 02:44, David Gibson a =C3=A9crit=C2=A0: > On Thu, Dec 12, 2019 at 08:43:59PM +0100, Laurent Vivier wrote: >> Register addr 1 is defined as buffer A with handshake (vBufAH), >> register addr 15 is also defined as buffer A without handshake (vBufA)= =2E >> >> Linux kernel has a big "DON'T USE!" next to the register 1 addr >> definition (vBufAH), and only uses register 15 (vBufA). >> >> So remove the definition of 'anh' and use only 'a' (with VIA_REG_ANH a= nd >> VIA_REG_A). >=20 > I'm not actually following the rationale for removing the register. > Linux doesn't use it, but if it's part of the real hardware model we > should keep it, no? It's actually two methods to access the same register (with handshake, without handshake). In the datashit Register 15 is described as "Same as register 1 except no handshake". Thanks, Laurent --eHV0s9Z4fbVUf5TKjkERSSsky7JcfX75d-- --SPf22y5OKl0BjgXK5D5AvFnt5K7iAgp8I Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAl3zT5UACgkQ8ww4vT8v vjyAoBAAtQG3c3jBz6oOCAmA+FL18iYcfq0ZXPuHA4gyE7OHp5FRt0atkxeBbbV8 0w+/fEkbCtPc9HOzj147aAdSBvZhESh/Ua/cIMtr5+vGNpZv0ZCPscPI+KS2QVUR co7ZtgtpT3BoThUCuab6YzuNSiwB2IEfupgl+l5NWqyDs9VdLbMxJw8hkF1Jpzrb Z+WkosnvNaBqcTCbhAk6il8V4EkU41dWyl0FfI7PGdA4dPY9T64ur37l4DGIwkWe RcI8lLDmDT+FxV+Ah4ebWrogiOTNQMaChdULBwsizB/Aj0C2gG2vuzDgIVad/U+h DwGYnzlV27Sy0ZTgb/yfS5S+R8Y8OQ4fO80yXbr5txOWtBq6iHP9pPe1qucu852/ UKmSer22iXbtPKYKkS1uYWu7smCHgdsu5Eg0OXUPM2OWAVGwOO9Q/ry13CJyYAMj ElW3WCIcAnLlbfXdHP8VO2LJM7qe16RCTr5p5srVhbG3va1mkLntD3Js0SY8ZGOc L1O7CiHwZoXyiXB+X64S6LhR3mOr/ue4yMNWU8NQ+x0x4VDNEfTeEgjUEFbJuqhN 3hV9Pgg+wRQtlDXPGqj09OtW4cPTQ6TYxfVyHuMOAP7s7MNEbaIxGYm6D1tVZsH4 N8b/SWHsVmaleqL8bWP7l7JIcPtMtMwWDun/JS5CeZBuNW9qZQo= =kOep -----END PGP SIGNATURE----- --SPf22y5OKl0BjgXK5D5AvFnt5K7iAgp8I--