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b=YodXG5bM2fcZD/K6wAH7xEBEGAR6RYAmbyX1dkPyrf2NIbkx1R93CQDZLDPYW5lN7 3F52mhkNx3Aw+0X+LzU7d4wmz9QLalW+r06IUDYvDNf8HbD6EQOHU8tFSCBRcYywGw OVRIYymL+TsMnKHqvm3qs0hInbm+VH2Wq36+18BC1QiCb5zaOXO2efrvRq9qzzBtmE JJyURSeNnfKOxnJ3cWTM9S75rH3G2Vqhx0s0IrZXLVbO+2lEwud0nlor+awaBa2a0V 8FYPTVZXlPDoJcWsL5+gtrdt2XbHWdBmMpPOXksXbbh/bCuCfrF+lOnhCmfxsH12y1 8C0Df9i2iBIrw== From: SeongJae Park To: Quanmin Yan Cc: SeongJae Park , akpm@linux-foundation.org, damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, wangkefeng.wang@huawei.com, zuoze1@huawei.com Subject: Re: [RFC PATCH -next 00/16] mm/damon: support ARM32 with LPAE Date: Wed, 13 Aug 2025 10:28:36 -0700 Message-Id: <20250813172836.6743-1-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250813050706.1564229-1-yanquanmin1@huawei.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 8zf9ong9qupop4y1fgawgatphcrm11hm X-Rspam-User: X-Rspamd-Queue-Id: 4F18E100009 X-Rspamd-Server: rspam01 X-HE-Tag: 1755106120-372692 X-HE-Meta: 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 1cMwahra J8CixSz23xv9AZiKnMonjTuytdcNFKEIFc4+swqoIrPZrhml/toY1t1JG0xynje5s6/RUe+so4uIlIVd0hI+X4c9LT0feTBfPjr5xwW5Vkhc3u6lC/AVlgZNaMFnk/D1hU2Eg930R1Yl+fw9ejJJ7gOQoHc360gqeLvR/yNZM0mHlj7w0mYEq6aMrKosEgpNSeBjLzfp7bgKy7oKDZRxrVsSycSvBFytyd/1Pc0jCaIaWPoj+90hlQKjxxqaHGHhiO8oJ 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 Wed, 13 Aug 2025 13:06:50 +0800 Quanmin Yan wrote: > Previously, DAMON's physical address space monitoring only supported > memory ranges below 4GB on LPAE-enabled systems. This was due to > the use of 'unsigned long' in 'struct damon_addr_range', which is > 32-bit on ARM32 even with LPAE enabled. > > Implements DAMON compatibility for ARM32 with LPAE enabled. > > Patches 01/16 through 10/16 are from the mailing list[1], add a new core > layer parameter called 'addr_unit'. Operations set layer can translate a > core layer address to the real address by multiplying the parameter value > to the core layer address. > > Patches 11/16 through 14/16 extend and complement patches 01~10, addressing > various issues introduced by the addr_unit implementation. > > Patches 15/16 and 16/16 complete native DAMON support for 32-bit systems. > > [1] https://lore.kernel.org/all/20250416042551.158131-1-sj@kernel.org/ It would be nice to add more history about this nice work here, with links. Thanks, SJ [...]