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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6204AC352A2 for ; Fri, 7 Feb 2020 13:26:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35D8921775 for ; Fri, 7 Feb 2020 13:26:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727341AbgBGNZ7 (ORCPT ); Fri, 7 Feb 2020 08:25:59 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:40763 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727113AbgBGNZ5 (ORCPT ); Fri, 7 Feb 2020 08:25:57 -0500 Received: from p5b06da22.dip0.t-ipconnect.de ([91.6.218.34] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1j03db-0003hB-TU; Fri, 07 Feb 2020 14:25:40 +0100 Received: from nanos.tec.linutronix.de (localhost [IPv6:::1]) by nanos.tec.linutronix.de (Postfix) with ESMTP id 0A914100F7E; Fri, 7 Feb 2020 13:25:38 +0000 (GMT) Message-Id: <20200207124402.622587341@linutronix.de> User-Agent: quilt/0.65 Date: Fri, 07 Feb 2020 13:38:51 +0100 From: Thomas Gleixner To: LKML Cc: x86@kernel.org, John Stultz , Vincenzo Frascino , Andy Lutomirski , Christophe Leroy , Paolo Bonzini , Juergen Gross , Michael Kelley , Sasha Levin , Ralf Baechle , Paul Burton , James Hogan , Russell King , Catalin Marinas , Will Deacon , Mark Rutland , Marc Zyngier , Andrei Vagin Subject: [patch V2 04/17] ARM: vdso: Compile high resolution parts conditionally References: <20200207123847.339896630@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thomas Gleixner If the architected timer is disabled in the kernel configuration then let the core VDSO code drop the high resolution parts at compile time. Signed-off-by: Thomas Gleixner --- arch/arm/include/asm/vdso/gettimeofday.h | 6 ++++++ 1 file changed, 6 insertions(+) --- a/arch/arm/include/asm/vdso/gettimeofday.h +++ b/arch/arm/include/asm/vdso/gettimeofday.h @@ -106,6 +106,12 @@ static __always_inline int clock_getres3 return ret; } +static inline bool arm_vdso_hres_capable(void) +{ + return IS_ENABLED(CONFIG_ARM_ARCH_TIMER); +} +#define __arch_vdso_hres_capable arm_vdso_hres_capable + static __always_inline u64 __arch_get_hw_counter(int clock_mode) { #ifdef CONFIG_ARM_ARCH_TIMER