From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from canpmsgout02.his.huawei.com (canpmsgout02.his.huawei.com [113.46.200.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 949BB3803E3; Tue, 23 Jun 2026 14:08:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=113.46.200.217 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782223691; cv=none; b=bWvBMKn7kXjWWfc+LO5mpQjDSu/xCj2FCaqGsAz7/dMBaDVMQk6mmEknOPkzpArrSfmcCFAfKOeSGwd8UeDCC6lC026qfHk+E2htikhNv4Bcm58w39++q58/reRXvj97NojU6K7N/b9AmcW5jtmOuvT2xN0Fcggv5e2gLkt/I88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782223691; c=relaxed/simple; bh=tM88ehV0vRS7fFmScYoO3fuXe+FKN3oyB1IesDMdkWI=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=UzR4vz2T8lomLGhs+HGqJQ92A8B49fz1ZXLu7Jk+hGx6s7y7Oq3gwYs0UsbUhjZrXoRIACw9dy/Kxi3FHZb/v385o1nbzDAJ80urpMzjPh75qiZYpEsY6qmZ3lHhIqFaRn077cuUPBuSmS6fVjBltIxbaIG8rGOV5EhbMI7o4R0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=h-partners.com; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b=f2mWTIgR; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b=f2mWTIgR; arc=none smtp.client-ip=113.46.200.217 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=h-partners.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b="f2mWTIgR"; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b="f2mWTIgR" dkim-signature: v=1; a=rsa-sha256; d=h-partners.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=4Kjc0ILl0J/jDwE6Rp8VeaX8HsM6FVKzVv2KZZcpLvE=; b=f2mWTIgRI0OMt+a5DXk7llvGYG+YSSaNqEUOMlOA2s03QZHIYyfSkzRV1Z6b4x+STugLrsIPq 3m6oP+Rzqb0N2IaFfkxaKjYTPJucaumO6NrvPZ1nl2cSchKOLvsCKiwkRUAFEbcYKgg7VAPrMAf PHbGQXpQFpA89e2wK8OSTX0= Received: from canpmsgout01.his.huawei.com (unknown [172.19.92.178]) by canpmsgout02.his.huawei.com (SkyGuard) with ESMTPS id 4gl6BT3pzczcb3n; Tue, 23 Jun 2026 21:59:29 +0800 (CST) dkim-signature: v=1; a=rsa-sha256; d=h-partners.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=4Kjc0ILl0J/jDwE6Rp8VeaX8HsM6FVKzVv2KZZcpLvE=; b=f2mWTIgRI0OMt+a5DXk7llvGYG+YSSaNqEUOMlOA2s03QZHIYyfSkzRV1Z6b4x+STugLrsIPq 3m6oP+Rzqb0N2IaFfkxaKjYTPJucaumO6NrvPZ1nl2cSchKOLvsCKiwkRUAFEbcYKgg7VAPrMAf PHbGQXpQFpA89e2wK8OSTX0= Received: from mail.maildlp.com (unknown [172.19.163.104]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4gl6BP4B7gz1T4GM; Tue, 23 Jun 2026 21:59:25 +0800 (CST) Received: from kwepemf100008.china.huawei.com (unknown [7.202.181.222]) by mail.maildlp.com (Postfix) with ESMTPS id 460EE40363; Tue, 23 Jun 2026 22:08:05 +0800 (CST) Received: from [10.174.179.37] (10.174.179.37) by kwepemf100008.china.huawei.com (7.202.181.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Tue, 23 Jun 2026 22:08:04 +0800 Message-ID: <7d46a48c-8805-09e1-4818-807953898fb4@huawei.com> Date: Tue, 23 Jun 2026 22:08:03 +0800 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [RFC PATCH 0/6] mm/damon: hardware-sampled access reports To: Ravi Jonnalagadda , , , , , , CC: , , , , , References: <20260529165640.820-1-ravis.opensrc@gmail.com> Content-Language: en-US From: Zeng Heng In-Reply-To: <20260529165640.820-1-ravis.opensrc@gmail.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To kwepemf100008.china.huawei.com (7.202.181.222) Hi Ravi, On 2026/5/30 0:56, Ravi Jonnalagadda wrote: > This series introduces a vendor and PMU-agnostic substrate inside DAMON > that consumes hardware-sampled access reports through the standard > perf-event interface. Userspace selects the PMU through sysfs (raw > type/config knobs), driving either Intel PEBS L3-miss sampling or AMD > IBS Op sampling. > [...] > > Ravi Jonnalagadda (6): > mm/damon: add struct damon_perf_event{,_attr} and per-ctx perf_events > list > mm/damon/sysfs-sample: expose perf_events configuration via sysfs > mm/damon/sysfs: install perf_events on apply > mm/damon/core: per-CPU SPSC ring drain and damon_perf_event lifecycle > mm/damon/vaddr: implement perf-event access check > mm/damon: add damos_node_eligible_mem_bp tracepoint > > include/linux/damon.h | 80 +++++ > include/trace/events/damon.h | 49 +++ > mm/damon/core.c | 403 ++++++++++++++++++++---- > mm/damon/ops-common.h | 39 +++ > mm/damon/sysfs-common.h | 6 + > mm/damon/sysfs-sample.c | 579 +++++++++++++++++++++++++++++++++++ > mm/damon/sysfs.c | 3 + > mm/damon/vaddr.c | 267 ++++++++++++++++ > 8 files changed, 1370 insertions(+), 56 deletions(-) > > > base-commit: 4c8ad15abf15eb480d3ad85f902001e35465ef18 I wasn't able to apply this patch series to the linux (and linux-next) mainline branch, and also had trouble identifying the source of the base commit. Would you mind sharing where this baseline is from? Thanks in advance! Best Regards, Zeng Heng