Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933019Ab3CEC2j (ORCPT ); Mon, 4 Mar 2013 21:28:39 -0500 Received: from mga02.intel.com ([134.134.136.20]:42044 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932776Ab3CEC2Z (ORCPT ); Mon, 4 Mar 2013 21:28:25 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,784,1355126400"; d="scan'208";a="293621018" From: Feng Tang To: Thomas Gleixner , John Stultz , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Len Brown , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org Cc: gong.chen@linux.intel.com, Feng Tang Subject: [RFC PATCH v2 2/4] clocksource: Add new feature flag CLOCK_SOURCE_SUSPEND_NOTSTOP Date: Tue, 5 Mar 2013 10:27:04 +0800 Message-Id: <1362450426-4232-3-git-send-email-feng.tang@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1362450426-4232-1-git-send-email-feng.tang@intel.com> References: <1362450426-4232-1-git-send-email-feng.tang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1040 Lines: 28 Some x86 processors have a TSC clocksource, which continue to work when system is suspend. Add a feature flag so that it could be utilized. Signed-off-by: Feng Tang --- include/linux/clocksource.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 27cfda4..5dee330 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -206,6 +206,7 @@ struct clocksource { #define CLOCK_SOURCE_WATCHDOG 0x10 #define CLOCK_SOURCE_VALID_FOR_HRES 0x20 #define CLOCK_SOURCE_UNSTABLE 0x40 +#define CLOCK_SOURCE_SUSPEND_NOTSTOP 0x80 /* simplify initialization of mask field */ #define CLOCKSOURCE_MASK(bits) (cycle_t)((bits) < 64 ? ((1ULL<<(bits))-1) : -1) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/