From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 16F7733062; Thu, 5 Jun 2025 16:14:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749140097; cv=none; b=Y990pYaR5kPQwQPJBuT6NhD17T2Uxw7zHMA8RroBDZjc7XZxToJgoZ0UPwJuYVuyZfBPvmm7kGUhCC8gbEFebJ/G2hXXZLFrYKhW/r07adCgM7VMnzAQAA6Zbah6Eu7AepmXuIRHhYSztYV65BNQH4w9BKrzPbg5XnTJ1VhoJgw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749140097; c=relaxed/simple; bh=Z+qxrYdrG4yhgOppFP8nF3DdRyP2MGfzPB3rOVknUFM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iHhppwSs//Pjc+hkH444Y67V3WNWP5kol31J30T2ojgDaFu6Y4fsgVb9dL/452haqPXNwlPzowjEnhXF3D0PQqkbWRf3m9kipGtzj/S3juqcPFKOhLAismwD7+GimMOsd88rtc1HjI4Bpx5i9/Ja4ZbYGmPzivOxh4gv7dZZK7E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=F2qDIOU2; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="F2qDIOU2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1749140096; x=1780676096; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Z+qxrYdrG4yhgOppFP8nF3DdRyP2MGfzPB3rOVknUFM=; b=F2qDIOU2CHDvXS4cPZHgThXbkyC+ESI6NFjjvdl2ejD0KfQ1h6cU3UXa 8Ge3MPUAI9XesulAZ9A+nltGaZKZEJZF6DxmZC2PPuQQpfXTNpS/Vjfn6 TjIlmL7sy5p70Xm5mfTN+YhPpDeVWf42Nuyn+drhKWRD5YJCQE2Bfd6Jh uqofTxAdRP9HsRZlN25JbmvO2XuUTvax+tfuyUC60lK0WUfUpAq2nMOwP Q7BgvReTLHgFJhzOibVUJbdJYV+IHanoHFMeAm9sB6BO3BeRVYyi0tSTn Z71+nwz2zcrl88TDPiOhUAR8GbZld2XNszyLc2KCEru7fge6CB7X5dxWS Q==; X-CSE-ConnectionGUID: JPy0Ka44QMSBUHg1EzSSLQ== X-CSE-MsgGUID: hE8BlqTaTV6WsaDaePO9Jw== X-IronPort-AV: E=McAfee;i="6800,10657,11455"; a="51415146" X-IronPort-AV: E=Sophos;i="6.16,212,1744095600"; d="scan'208";a="51415146" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jun 2025 09:14:55 -0700 X-CSE-ConnectionGUID: LDycTst+TAyD9PotJNzUAg== X-CSE-MsgGUID: A799Z+d4QZiF9izF4In5bQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,212,1744095600"; d="scan'208";a="146512766" Received: from spandruv-desk1.amr.corp.intel.com (HELO [10.125.111.0]) ([10.125.111.0]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jun 2025 09:14:56 -0700 Message-ID: <06122416-b24a-493b-9374-550e5c290436@intel.com> Date: Thu, 5 Jun 2025 09:14:54 -0700 Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 4/5] ACPI: processor: Rescan "dead" SMT siblings during initialization To: "Rafael J. Wysocki" , x86 Maintainers , Linux PM Cc: LKML , Len Brown , Peter Zijlstra , Thomas Gleixner , Dave Hansen , Artem Bityutskiy , "Gautham R. Shenoy" , Ingo Molnar , Borislav Petkov , Linux ACPI References: <2226957.irdbgypaU6@rjwysocki.net> <2005721.PYKUYFuaPT@rjwysocki.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: <2005721.PYKUYFuaPT@rjwysocki.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/5/25 08:07, Rafael J. Wysocki wrote: > #ifdef CONFIG_ACPI_PROCESSOR_CSTATE > +void acpi_idle_rescan_dead_smt_siblings(void) > +{ > + if (cpuidle_get_driver() == &acpi_idle_driver) > + arch_cpu_rescan_dead_smt_siblings(); > +} My only thought in reading this is that maybe cpuidle_register_driver() would be a better spot to force the arch_cpu_rescan_dead_smt_siblings(). That way, each driver would not have to do the rescan. But that's just a little nit at worst, otherwise the series looks good to me. Thanks for chasing this down. For the x86 bits: Acked-by: Dave Hansen