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X-AuditID: 8b5b014d-ba8f670000005d46-40-614c526a5842 Received: from enigma.ics.forth.gr (enigma.ics.forth.gr [139.91.151.35]) by av3.ics.forth.gr (Symantec Messaging Gateway) with SMTP id 70.5C.23878.A625C416; Thu, 23 Sep 2021 13:09:46 +0300 (EEST) X-ICS-AUTH-INFO: Authenticated user: at ics.forth.gr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Thu, 23 Sep 2021 13:09:45 +0300 From: Nick Kossifidis To: Philipp Tomsich Cc: Nick Kossifidis , Anup Patel , Guo Ren , Anup Patel , Atish Patra , Palmer Dabbelt , =?UTF-8?Q?Christoph_M=C3=BCllner?= , Christoph Hellwig , liush , wefu@redhat.com, =?UTF-8?Q?Wei_Wu_=28=E5=90=B4=E4=BC=9F=29?= , Drew Fustini , linux-riscv , "linux-kernel@vger.kernel.org List" , taiten.peng@canonical.com, aniket.ponkshe@canonical.com, Heinrich Schuchardt , gordan.markus@canonical.com, Guo Ren , Arnd Bergmann , Chen-Yu Tsai , Maxime Ripard , Daniel Lustig , Greg Favor , Andrea Mondelli , Jonathan Behrens , Xinhaoqu , Bill Huffman , Allen Baum , Josh Scheid , Richard Trauben Subject: Re: [PATCH] riscv: Add RISC-V svpbmt extension Organization: FORTH In-Reply-To: References: <20210923072716.913826-1-guoren@kernel.org> <6d7b1668c1f562a5ef426bb2519f9784@mailhost.ics.forth.gr> <0861cc74d3886e685e9aa5d13ddcd781@mailhost.ics.forth.gr> <16de95480d279b086cf0c612461e4235@mailhost.ics.forth.gr> Message-ID: <88696248a0c19a5dff660354b837514d@mailhost.ics.forth.gr> X-Sender: mick@mailhost.ics.forth.gr User-Agent: Roundcube Webmail/1.3.16 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprEKsWRmVeSWpSXmKPExsXSHT1dWTcryCfRYM4RPosnh9rZLKYdOMRu 0TphN4vFkw8T2SxaPrxjtfg76Ri7xaIV31ksluyUttjzag+7xYXmHkaLeyuWsVvs7p/DYrH9 /Hc2ixd7G1ksjj/axWKxcvVRJosLjTfZLS6vns9k8fzUMTaLS1+usVhc3jWHzWLb5xY2i5Xr jjFbzPjxj9Gi+d05doutG9cxWnSvrLY4ueEAo8WapVMZLVr2T2Gx+HnoPJPFwtfz2B0UPF61 PWPy+P1rEqPHu9/LGD2m/j7D4rGm8zWTx6yGXjaPO+fOs3lseLSa1eP/oZUsHjtn3WX3WLCp 1KPlyFtWj4ebLjF5bFrVyeax86Glx+Yl9QESUVw2Kak5mWWpRfp2CVwZHWsb2Au2slbsnjmN sYFxNksXIyeHhICJxNwF79m7GLk4hASOMkoc+vqeDSJhKjF7bycjiM0rIChxcuYTsAZmAQuJ qVf2M0LY8hLNW2czg9gsAqoSuz99YwKx2QQ0JeZfOghWLyKgJ3H4/C4WkAXMAjs4JTb8Byni 4mAQuMEocW7XarBJwgLmEm+/NrCD2PwCwhKf7l5kBbE5BQIlbl34BbZBSOAbk8StR2IQF7lI /P3wmRniUhWJD78fAPVycIgC2ZvnKk1gFJqF5O5ZSO6eheTuBYzMqxgFEsuM9TKTi/XS8otK MvTSizYxgpMNo+8Oxtub3+odYmTiYDzEKMHBrCTC+/mGV6IQb0piZVVqUX58UWlOavEhRmkO FiVxXl69CfFCAumJJanZqakFqUUwWSYOTqkGJu13+r2T1Jg4jTx+35uUxGpyek9L8+W0fot6 bwF2g9AnG9Z4pp1YrHvqctRhr/OZc9Nsr/dOzde8e78k/Zzu9ZZlM2pDV2V/eBdy1Vp7rt1+ IaOlfUZfw18tU//YVse1YOKVO3KBn+7qTo2ukbYWtzGL1/yv36CaaiFWL3r54I+NJzcvlcj8 nH1nfm+I8kWNuKtWElu29/U+Zbe6VLGkjC3d76pGpsSrN0INJ/luxs87lhe5fPv8Rwt+rJVW j4kpv+g1uziwQvcN62dX5mVLdfs3tzPmTCqozL/xzuyqyhWlPblzvbknsxQdP+Du/+nvqX+F D74qXH0955aw96fzWdams+tVxKqVj/7qev7IXomlOCPRUIu5qDgRAP/jkDSlAwAA Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Στις 2021-09-23 13:04, Philipp Tomsich έγραψε: > > How if we expand this to a mmu subnode in cpu@x and add a booleans for > adornments like svnapot and svpbmt? > The older mmu-type could then treated to indicate a mmu w/o any > adornments specified. I am aware that this generates an additional > parsing-path that will be maintained, but it will allow future > properties to be grouped. > > cpu@0 { > ... > mmu { > type = "riscv,sv39"; > supports-svpbmt; > } > ... > } I was about to propose the same thing, we can do this now without breaking backwards compatibility, we don't really use mmu-type property at this point, we are either sv39 or nommu.