From nobody Thu Apr 2 23:54:47 2026 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 D8F533542E5; Wed, 25 Mar 2026 19:26:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774466809; cv=none; b=TvfKJIru0s21xYR4h3NUwgEBEpaHb5w2QEv6OXQC44yQXyrzaBrp2IZMmhZuHddejJzkT2I5SOzTSxpa+AJdOTWNlCjy+RusgLZ2sDfLlQ7QwU+SGUbA04VieMm8EPbBDrtPwr5F9lpGeImZ4McmyIy5LCqpLYUijoiMeQX5zhA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774466809; c=relaxed/simple; bh=EUSJ4WHhXpBP/yrcWI3vj8IKzFI1fiOhCeYVPZCdZK0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=DJHOyzJXMYQfMvHN/CyvPSShTjerwhewEgHx37yw3uWb9zlDGiHhveMP65Ap/uPtXrtn5Vgff0K9+OQpYwQWMLVBG1A25+ULrThSRA8pI/6YgHzjPbFA9ixoWcGQRxLr8RO7eSB6yFHre1pgnE0M/jN5j+LeJsN0XKLAX1eEH6k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=T29qZ/V2; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="T29qZ/V2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774466808; x=1806002808; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=EUSJ4WHhXpBP/yrcWI3vj8IKzFI1fiOhCeYVPZCdZK0=; b=T29qZ/V28G6C4fQ8Co9pvqe3e9ctR8v0go6uALxDg7TTKlRZzLP7Xl1f G9xCylSHD3TNiiNFdsjoKATnQ9I9baEu6EDoSCOY3fEodGzaGk8FiJT1e n1Yzbepo6+W7Jz0ZsD8Qe1UVgXFhooh0xQfn2yJoPMQXb81ICwRhsccs7 jbUrzth0PnGYxAHruGZgQ7VIYp6y4f7oH+JE4H96xbZVc9IiE6GQDQvU0 qxc5cp5ujQabmJ5BRUFi3+MXoRU+bmcQzWQl6I7+RIS2pMJp2yC2v3FyC IDO8C66RyfcvNSg9tQCBNjzf+O70CNfW1Qtg05nFtRgN0dvd/8aQgXs/Y A==; X-CSE-ConnectionGUID: iC8sDJsdToC5HXAqSLzoDg== X-CSE-MsgGUID: yunMiMR1SZa+2Iw30hFbrg== X-IronPort-AV: E=McAfee;i="6800,10657,11740"; a="75401029" X-IronPort-AV: E=Sophos;i="6.23,140,1770624000"; d="scan'208";a="75401029" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2026 12:26:48 -0700 X-CSE-ConnectionGUID: 3Q1ChaFPQtyMUFUUDzbYWQ== X-CSE-MsgGUID: bpEpeqTBRnWqjbh447nwww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,140,1770624000"; d="scan'208";a="229551188" Received: from spandruv-desk.jf.intel.com ([10.54.55.20]) by fmviesa005.fm.intel.com with ESMTP; 25 Mar 2026 12:26:47 -0700 From: Srinivas Pandruvada To: hansg@kernel.org, ilpo.jarvinen@linux.intel.com Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Pandruvada , stable@vger.kernel.org Subject: [PATCH] platform/x86: ISST: Reset core count to 0 Date: Wed, 25 Mar 2026 12:26:38 -0700 Message-ID: <20260325192638.3417281-1-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Based on feature revision, number of buckets can be less than the TRL_MAX_BUCKETS. In that case core counts in the remaining buckets can be set to some invalid values. Hence reset core count to 0 for all buckets before assigning correct values. Fixes: 885d1c2a30b7 ("platform/x86: ISST: Support SST-TF revision 2") Signed-off-by: Srinivas Pandruvada Cc: stable@vger.kernel.org --- drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c b/= drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c index b8cdaa233ea9..dc22504aea32 100644 --- a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c +++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c @@ -1458,6 +1458,8 @@ static int isst_if_get_turbo_freq_info(void __user *a= rgp) SST_MUL_FACTOR_FREQ) } =20 + memset(turbo_freq.bucket_core_counts, 0, sizeof(turbo_freq.bucket_core_co= unts)); + if (feature_rev >=3D 2) { bool has_tf_info_8 =3D false; =20 --=20 2.52.0