From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 C97B8329376; Mon, 29 Dec 2025 18:34:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767033298; cv=none; b=nfGWq9+zgROHPXtnVC8cxR68T2DnkA15xeN8M41+iQKO/HQrI/DrW4lsZ/+TpXpfWmV2prNcxNNXzcLwb/wgJX5ytxAa9YjVv6PkA63tGeYG5YXIRHRGp42q/Vjxwlj0X4tFwi+c80JJtuy9EqYDl68Vq6GfudkX9iodyWZG5i8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767033298; c=relaxed/simple; bh=4q1Jjqv8GO9z+Zu6jmtpMjrczwAgyLNQRsyarTm/BjE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=pOXvfB860lSnBITX16irY1BfiQFiyTnNaxyjy2UVxDyg86Hfs7VP4jD7xonepLvC/rMGReri+EKL3c8eRwu6gS8LS2s7vVPgn2eGG11f5EnrzWZxexQt8KLpbT/MnTRRlOckY4oJ+GtcDweEf0LZbgAa7KthYiiuTzCR9Wk56AE= 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=BgSGyaYl; arc=none smtp.client-ip=192.198.163.8 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="BgSGyaYl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767033297; x=1798569297; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=4q1Jjqv8GO9z+Zu6jmtpMjrczwAgyLNQRsyarTm/BjE=; b=BgSGyaYl7CGXO68Bt1VbQFZejY6rzoQsCQcIOrqQisncJt1/2UaXGzoh Pl9185U3DtCH9FDmibIkPcJc6LkhHxd5mHrkn6jmKPwoHdP8yl9lb9LyN 0ERdijoeAMc9CSUwKG8OnP0C3WCNxsdqgx8Lka+20WmzQbY17SlWtD2GS 4jAJ1WfPJu/JPtyIiwCgxpwJpHflHGgUJqNB+LTcfWfOJmvBl0CIOH1yx 427oVHXEGGC0IyEKMutgzlO7Tct6ISZkWMdQk8+Aa0dBAXnLc6G4q8hVF uOo/+7yOsM6bwffriRfrsxQvnkJDD14CODYAQRsnK3O+Qaw98d2eXIAIu g==; X-CSE-ConnectionGUID: n7/Smz6XSU68iDktPrLR3Q== X-CSE-MsgGUID: VAa9vt5URQuMfuKGJawnsg== X-IronPort-AV: E=McAfee;i="6800,10657,11656"; a="86218717" X-IronPort-AV: E=Sophos;i="6.21,186,1763452800"; d="scan'208";a="86218717" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Dec 2025 10:34:56 -0800 X-CSE-ConnectionGUID: c+4tfYxNRImbThXgbV6tQA== X-CSE-MsgGUID: d/N1BvNXTXO3bR/Y9Igquw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,186,1763452800"; d="scan'208";a="205120422" Received: from spandruv-desk.jf.intel.com ([10.54.55.20]) by orviesa003.jf.intel.com with ESMTP; 29 Dec 2025 10:34:56 -0800 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 Subject: [PATCH 0/2] platform/x86: ISST: Fix for write lock and suspend/resume Date: Mon, 29 Dec 2025 10:34:48 -0800 Message-ID: <20251229183450.823244-1-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit There are two issues, which are not urgent as the current deployed systems don't support them, but need fixes: - Write lock- Even if the TPMI is write locked it will still write to MMIO - store-restore data during suspend/resume: Not storing and restoring data to all power domains. Srinivas Pandruvada (2): platform/x86: ISST: Add missing write block check platform/x86: ISST: Store and restore all domains data .../intel/speed_select_if/isst_tpmi_core.c | 56 ++++++++++++------- 1 file changed, 36 insertions(+), 20 deletions(-) -- 2.52.0