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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6463CD6E5C for ; Wed, 11 Oct 2023 11:02:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346550AbjJKLCR (ORCPT ); Wed, 11 Oct 2023 07:02:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234857AbjJKLCL (ORCPT ); Wed, 11 Oct 2023 07:02:11 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 814BBB7 for ; Wed, 11 Oct 2023 04:02:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697022130; x=1728558130; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Y5PY+/hV6/wrlFIbAS/3+SC0p6p4icSVgrCNrHkomwo=; b=hC5O7877ZkaMCO9oL8NS07oBYROb/2JH+vFsGGBHjV8GnMCVIr4yqr+r 2e8TORLz195ULggnJi58nYE9EEXjvhyCWvsL+3q+0josPVkd86Z6/IJ9V OnHr/0SFzIH2BW9ImCTo5pQYM+jyHgG6slcZx2KhzG273Y4AysLNjv49Q 7Dv1esY/dLgIucGGPc5D9dWcbrLK4DoT571eYzUdapFIXLc4zUnLlGcxO 6BYabow6c5j+z9SaguhqDcOsir1bhxNrbcXphgfD+opmFIh6+LAsPv2hC xAwU+jz9WVljxCFDNh6URFUofMmzeDis6DbgaldX0Z3EXG9yDcbMOh9Tz Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10859"; a="369696899" X-IronPort-AV: E=Sophos;i="6.03,214,1694761200"; d="scan'208";a="369696899" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2023 04:02:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10859"; a="788960256" X-IronPort-AV: E=Sophos;i="6.03,214,1694761200"; d="scan'208";a="788960256" Received: from twinkler-lnx.jer.intel.com ([10.12.231.216]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2023 04:02:07 -0700 From: Tomas Winkler To: Greg Kroah-Hartman Cc: Alexander Usyskin , Vitaly Lubart , linux-kernel@vger.kernel.org, Tomas Winkler Subject: [char-misc-next 0/4] mei: enhance mei pxp recoverability Date: Wed, 11 Oct 2023 14:01:53 +0300 Message-ID: <20231011110157.247552-1-tomas.winkler@intel.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org - Add timeouts to send/receive API on mei bus to avoid infinite waits and consequent deadlock. - Re-enable the mei pxp client upon loss. - Retry receive operation in case of memory pressure related failure. Alan Previn (1): mei: update mei-pxp's component interface with timeouts Alexander Usyskin (3): mei: bus: add send and recv api with timeout mei: pxp: recover from recv fail under memory pressure mei: pxp: re-enable client on errors drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 8 ++- drivers/misc/mei/bus.c | 88 +++++++++++++++++++++++- drivers/misc/mei/pxp/mei_pxp.c | 88 +++++++++++++++++++++--- include/drm/i915_pxp_tee_interface.h | 6 +- include/linux/mei_cl_bus.h | 8 +++ 5 files changed, 183 insertions(+), 15 deletions(-) -- 2.41.0