From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E1F12E6F06A for ; Fri, 1 Nov 2024 15:22:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3EB406B0085; Fri, 1 Nov 2024 11:22:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 39AE86B0088; Fri, 1 Nov 2024 11:22:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 214376B0089; Fri, 1 Nov 2024 11:22:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 01ED26B0085 for ; Fri, 1 Nov 2024 11:22:28 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 9D6BC1206DB for ; Fri, 1 Nov 2024 15:22:28 +0000 (UTC) X-FDA: 82737891390.03.D75B437 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by imf03.hostedemail.com (Postfix) with ESMTP id 8A2822000E for ; Fri, 1 Nov 2024 15:22:12 +0000 (UTC) Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=BNvGydHJ; spf=pass (imf03.hostedemail.com: domain of dave.hansen@intel.com designates 192.198.163.8 as permitted sender) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1730474414; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=Sf3BF/dNvCONgh73N+UQk9aiKw8MNHyVbvTP0AKHIhU=; b=ZCzYGXPU0XGyFVB39iOOBhEVBZcXufSFoMeOB8m0wvrLU+4eoWct6FH6UBvqR8tzZd3Uyv u/uX6nOtZJGSjqqSFJyILpEbBGb4rGmTEJVlz52sES75CdHQ2UpgBjzaObTs38l1ztPSj7 GtKqdE6vm2G9ze0ITaEgUiZprUoLQpA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1730474414; a=rsa-sha256; cv=none; b=a+Yudbl2u6bcTUguVxd09Gqah1dOcMYwpZ4hCPyo5ve8kz4jYwJYmaKiMa1fKoB+KrBswE b5UMX0s9zU+R/A0BsvWt+wDB0mRDBgu/GfLPkv1msuXUiDsUTRVuKl6mY6dlDt3p59FVSU BJ3A+5+p8U+W21v2qkuAQWfebQfTxzw= ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=BNvGydHJ; spf=pass (imf03.hostedemail.com: domain of dave.hansen@intel.com designates 192.198.163.8 as permitted sender) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730474546; x=1762010546; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=cVmHLaPGigvflDEqAOfwrZjRkmGQh8/WUjNZ4uZ48Co=; b=BNvGydHJLztVhUTlrmEb2HqGCbduWaoldQ0XOtV4yVXuYZD/A7FdgsgM SrX6qBxjNmCk2TzDx1JFynrKXofiJxpbvGDEZDsHyD8pKnplmJK7YAWln Q5cjdCNdomPhDcrtpL+QykPxZZsub5OQx2xStBpG4jIjdrVeP6j4p2MCH wd9EJMBBnf4y+nJOL72Pj8Yo1mUmp1u898ZRCaVNby3cVzHIE0WvOSjF6 y9mgKcA6Ky6FUspqBoaSgzuGkrIhsGDIf6GrA/oGFkKNcjrYtEQez0s1b 8Z7ZpjvuR7C3nKl/kKfOhzG2wbEK7ND1WrxrQu1FifaYfaAWes3Fcl29+ w==; X-CSE-ConnectionGUID: 55qP4wRbTj+QMcx6OoAEpQ== X-CSE-MsgGUID: QoWJIPVxQ5q2ie9QCRnKCA== X-IronPort-AV: E=McAfee;i="6700,10204,11243"; a="47732932" X-IronPort-AV: E=Sophos;i="6.11,250,1725346800"; d="scan'208";a="47732932" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2024 08:22:23 -0700 X-CSE-ConnectionGUID: VRzW+vvZQTCPenCgxv9uPg== X-CSE-MsgGUID: t/J48C2RS7m2W5ADNvk96A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,250,1725346800"; d="scan'208";a="83330929" Received: from ccbilbre-mobl3.amr.corp.intel.com (HELO [10.124.220.146]) ([10.124.220.146]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2024 08:22:21 -0700 Message-ID: <44325592-4185-4d14-8e8c-6b5b27bb4908@intel.com> Date: Fri, 1 Nov 2024 08:22:20 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 2/3] x86: probe memory block size advisement value during mm init To: Gregory Price , x86@kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-mm@kvack.org Cc: linux-cxl@vger.kernel.org, Jonathan.Cameron@huawei.com, dan.j.williams@intel.com, rrichter@amd.com, Terry.Bowman@amd.com, dave.jiang@intel.com, ira.weiny@intel.com, alison.schofield@intel.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, rafael@kernel.org, lenb@kernel.org, david@redhat.com, osalvador@suse.de, gregkh@linuxfoundation.org, akpm@linux-foundation.org, rppt@kernel.org References: <20241101134706.1185-1-gourry@gourry.net> <20241101134706.1185-3-gourry@gourry.net> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: <20241101134706.1185-3-gourry@gourry.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 8A2822000E X-Stat-Signature: kdrkzcfeoqx1kqw6t5nfuckcox9oo4fr X-HE-Tag: 1730474532-875233 X-HE-Meta: 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 U1ExL6En yPfNQmqCR6+DmfxD3xzoseg5hS2RHwusGOPpHs5efptWw05EBqqJnTe1qcxR5xM/xty2IKObsW1G4EypAZxXjbSXM9qC81o0Hc6ZR31eEA3npct5sfP05TIs+Sp52hJzD9jA9KhSFZku6VPyRnNA7nIXICb/wKMZrJh33Ue9jRxWdrKjcBTasIEQ6cFWnVWrfcqOW4fiCvsJ08nIGHO87jPf8nwiy+Uh/eniz 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 11/1/24 06:47, Gregory Price wrote: > Systems with hotplug may provide an advisement value on what the > memblock size should be. Probe this value when the rest of the > configuration values are considered. It's too bad this doesn't simplify any of the arch code, but it's also not making it much worse. I assume this is something that will go through the mm tree, so: Acked-by: Dave Hansen