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Peter Anvin" , Peter Zijlstra , Pratyush Yadav , Rob Herring , Rob Herring , Saravana Kannan , Stanislav Kinsburskii , Steven Rostedt , Thomas Gleixner , Tom Lendacky , Usama Arif , Will Deacon , devicetree@vger.kernel.org, kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Subject: Re: [PATCH v4 14/14] Documentation: KHO: Add memblock bindings Message-ID: <20250210202040.GB3754072@nvidia.com> References: <20250206132754.2596694-1-rppt@kernel.org> <20250206132754.2596694-15-rppt@kernel.org> <45df0d7a-622a-4268-9683-c5c6067483c3@kernel.org> <18529b1f-dc79-4c85-a485-a0a2cdd48670@kernel.org> <20250210191539.GA3765641@nvidia.com> <2fe7a404-be2c-4ac8-8980-2b3d07a74bca@kernel.org> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2fe7a404-be2c-4ac8-8980-2b3d07a74bca@kernel.org> X-ClientProxiedBy: BN9PR03CA0532.namprd03.prod.outlook.com (2603:10b6:408:131::27) To 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Feb 10, 2025 at 08:27:34PM +0100, Krzysztof Kozlowski wrote: > On 10/02/2025 20:15, Jason Gunthorpe wrote: > > On Sun, Feb 09, 2025 at 09:50:37PM +0100, Krzysztof Kozlowski wrote: > >>> Ah, neat, that would almost solve the problem but you wrote: > >>> > >>> +$id: http://devicetree.org/schemas/memblock/reserve_mem.yaml# > >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# > >>> > >>> so no, this does not work like that. You use devicetree here namespace > >>> and ignore its rules. > >> > >> ... and that obviously is barely parseable, so maybe one more try: > >> "You use here devicetree namespace but ignore its rules." > > > > It makes sense to me, there should be zero cross-over of the two > > specs, KHO should be completely self defined and stand alone. > > > > There is some documentation missing, I think. This yaml describes one > > node type, but the entire overall structure of the fdt does not seem > > to have documentation? > > A lot of ABI is missing there and undocumented like: node name (which > for every standard DT would be a NAK), few properties. This binding > describes only subset while skipping all the rest and effectively > introducing implied/undocumented ABI. I agree, I think it can be easily adressed - the docs should have a sample of the overal DT from the root node and yaml for each of the blocks, laying out the purpose very much like the open dt spec.. Jason