From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuanxiao Dong Subject: [PATCH v1 0/4]mmc: enable eMMC4.41 new feature background operations and HPI Date: Tue, 23 Nov 2010 16:43:09 +0800 Message-ID: <20101123084309.GA17754@intel.com> Reply-To: Chuanxiao Dong Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga02.intel.com ([134.134.136.20]:19052 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750792Ab0KWIpp (ORCPT ); Tue, 23 Nov 2010 03:45:45 -0500 Content-Disposition: inline Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: linux-mmc@vger.kernel.org, cjb@laptop.org Cc: linux-kernel@vger.kernel.org, alan@linux.intel.com, arjan@linux.intel.com, hang.yuan@intel.com Hi, These patches were enabled eMMC4.41 standard new feature: background operations and HPI. Since these two features are opertional, driver only enable for those eMMC card which supports them. HPI can interrupt both background operations and low priority foreground operations. In these patches, only implemented using HPI to interrupt background operations. patch1: enable background operations feature for supported eMMC card. patch2: let eMMC card do background operations when user reqeust queue is idle. In this patch, also considered when driver added runtime power management. patch3: enable HPI feature for supported eMMC card. patch4: use HPI to interrupt background operations if there is user request(foreground operations). Thanks Chuanxiao