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b=DNaYmnP6lqeZPyPEH4NDgKmSjYmC9W/HLk2KbeeSAN78X+py65STTCNKA1KvSaEYT ZVPx29xw1qFyhgp30weJoH1zCvmxl3BevfyrAKof0HHTqq9b/OvZ40yXJ8LNt79RKM 5BVm2vdbtuCkaqSyVOvsxo+iBWsDfHBDGoqanZ/E4l0vQnmupevWqbQe0pMXibnPor xjIQSIpV9CgHcOKLX0Xc+iQrBrRxyMnsEG3DJMcI82+vQcHCP1oVOoFCwgYVlSUwM8 bxCDPmgE4k+MG2+8MzwYcC9bXWBDZ7wPZzOkfzAaYnMbkiwU/lw4LZ7XnyeQvqLai3 9xKzdqSQMXGJQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Alexandre Ghiti , Albert Ou , David Hildenbrand , Palmer Dabbelt , Paul Walmsley , linux-riscv@lists.infradead.org Cc: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Andrew Bresticker , Chethan Seshadri , Lorenzo Stoakes , Oscar Salvador , Santosh Mamila , Sivakumar Munnangi , Sunil V L , linux-kernel@vger.kernel.org, linux-mm@kvack.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v2 8/8] riscv: mm: Add support for ZONE_DEVICE In-Reply-To: <20240514140446.538622-9-bjorn@kernel.org> References: <20240514140446.538622-1-bjorn@kernel.org> <20240514140446.538622-9-bjorn@kernel.org> Date: Wed, 15 May 2024 09:03:02 +0200 Message-ID: <87pltntv4p.fsf@all.your.base.are.belong.to.us> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Stat-Signature: pn3kygkyjnoy446xf7ntg6a6i3tshzi7 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 81D5910000C X-HE-Tag: 1715756590-88686 X-HE-Meta: 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 8SsvmEJg uR3642Cwvyn2i1VjhDOrkY5EjvvwhpzuQ/yG5b5RTRkPVNy9LHhRow7xoZ/kCyjCBAZ8EFXBT9CXvJX2Bqrg2lwC8zrfcvaewt6OeqGZhGh6VmIb3s67p7dyq8SsnbhihVpTOMcwd/kxVaPULtrJqOaYbBk7d6iFcEJkSht0f/XpBcjQmhmPjUm1+luF5tetUocPIoOjhxVbaP8kVxjtBQKZZzGT5ooME/t5llfavizvPKngw1zMk74XYsZU53v/RUyzilugi/5jl450JtMi8z82jb4Pgrrm4BV5nyKyaLhQydjAzEYitajNIoFsX7OucYXC9pn1JlXVDDP5QcMPqJMC636xRwzM2A1OZQqx10tIQBVvHB7AxNebAffS5m4LZCzAi0MqvkEGQOpEyp6INHbO8cg== 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: Bj=C3=B6rn T=C3=B6pel writes: > From: Bj=C3=B6rn T=C3=B6pel > > ZONE_DEVICE pages need DEVMAP PTEs support to function > (ARCH_HAS_PTE_DEVMAP). Claim another RSW (reserved for software) bit > in the PTE for DEVMAP mark, add the corresponding helpers, and enable > ARCH_HAS_PTE_DEVMAP for riscv64. ...and this patch has rv32 build issues. Will fix as well.