From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754829AbdCPXMc (ORCPT ); Thu, 16 Mar 2017 19:12:32 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:55020 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754675AbdCPXMb (ORCPT ); Thu, 16 Mar 2017 19:12:31 -0400 Message-Id: <20170316215057.295079391@linutronix.de> User-Agent: quilt/0.63-1 Date: Thu, 16 Mar 2017 22:50:07 +0100 From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , x86@kernel.org, Peter Anvin , Borislav Petkov , Peter Zijlstra , Stephane Eranian , Andi Kleen Subject: [patch 5/7] x86/pci: Select CONFIG_PCI_LOCKLESS_CONFIG References: <20170316215002.726697858@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=x86-pci--Select-CONFIG_PCI_LOCKLESS_CONFIG.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org All x86 PCI configuration space accessors have either their own serialization or can operate completely lockless (ECAM). Disable the global lock in the generic PCI configuration space accessors. Signed-off-by: Thomas Gleixner --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -165,6 +165,7 @@ config X86 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_USER_RETURN_NOTIFIER select IRQ_FORCED_THREADING + select PCI_LOCKLESS_CONFIG select PERF_EVENTS select RTC_LIB select RTC_MC146818_LIB