From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753200Ab0CZX3u (ORCPT ); Fri, 26 Mar 2010 19:29:50 -0400 Received: from outbound-mail-01.bluehost.com ([69.89.21.11]:38748 "HELO outbound-mail-01.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752558Ab0CZX3t (ORCPT ); Fri, 26 Mar 2010 19:29:49 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer:X-Identified-User; b=BZ5y3qtzenBCNRyNDU8TGwyXzHkL/RkFI4puCw1sbAnKn31/SdJA6EB2/vLSIsThzbY4Sx1Nze6TjJbXCxJREb6QddSRKd2elqIy6z7PVcbmbVahMB5wePOvDX56PVQR; From: Jesse Barnes To: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: Matthew Garrett Subject: [RFC] Intelligent power sharing driver Date: Fri, 26 Mar 2010 16:29:04 -0700 Message-Id: <1269646146-13296-1-git-send-email-jbarnes@virtuousgeek.org> X-Mailer: git-send-email 1.6.3.3 X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 75.110.194.140 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset adds the core IPS driver to drivers/platform/x86, along with some helper code in the timer subsystem to allow for deferrable on-stack timers. Note that the deferrable timers don't actually work at this point; I'm probably just doing something silly in the IPS driver in using them, but it's possible the core code is wrong too, I'm hoping for some review there (so testing thus far has been with a fixed sample rate). Also note that this patchset doesn't include the i915 specific bits for monitoring power consumption; I'm still debugging those (my current platform overreports power by several watts; I'm hoping a production platform will return reasonable values) but expect to be able to post them soon. With the combination of this driver and the i915 code, I expect significant GPU performance gains; early measurements with simple loads show about a 15% improvement, but I've heard reports of even higher. Anyway, please take a look and let me know what needs fixing or how I might make this a better driver. Thanks, Jesse