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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 CF7C0C33CB1 for ; Sun, 19 Jan 2020 10:41:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ACE5321569 for ; Sun, 19 Jan 2020 10:41:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728911AbgASKld (ORCPT ); Sun, 19 Jan 2020 05:41:33 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:60025 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726673AbgASKkw (ORCPT ); Sun, 19 Jan 2020 05:40:52 -0500 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1it80b-0001fP-Lg; Sun, 19 Jan 2020 11:40:45 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id 3A6291C1A1A; Sun, 19 Jan 2020 11:40:45 +0100 (CET) Date: Sun, 19 Jan 2020 10:40:45 -0000 From: "tip-bot2 for Sean Christopherson" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: core/headers] ACPI/sleep: Convert acpi_wakeup_address into a function Cc: Sean Christopherson , Ingo Molnar , x86 , LKML In-Reply-To: <20191126165417.22423-12-sean.j.christopherson@intel.com> References: <20191126165417.22423-12-sean.j.christopherson@intel.com> MIME-Version: 1.0 Message-ID: <157943044502.396.15306490913678776890.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit 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 The following commit has been merged into the core/headers branch of tip: Commit-ID: 8c53b318b222eff55d2900b554094a099b1a30f6 Gitweb: https://git.kernel.org/tip/8c53b318b222eff55d2900b554094a099b1a30f6 Author: Sean Christopherson AuthorDate: Tue, 26 Nov 2019 08:54:16 -08:00 Committer: Ingo Molnar CommitterDate: Tue, 10 Dec 2019 10:15:48 +01:00 ACPI/sleep: Convert acpi_wakeup_address into a function Convert acpi_wakeup_address from a raw variable into a function so that x86 can wrap its dereference of the real mode boot header in a function instead of broadcasting it to the world via a #define. This sets the stage for a future patch to move x86's definition of the new function, acpi_get_wakeup_address(), out of asm/acpi.h and thus break acpi.h's dependency on asm/realmode.h. No functional change intended. Signed-off-by: Sean Christopherson Link: https://lkml.kernel.org/r/20191126165417.22423-12-sean.j.christopherson@intel.com Signed-off-by: Ingo Molnar --- arch/ia64/include/asm/acpi.h | 5 ++++- arch/ia64/kernel/acpi.c | 2 -- arch/x86/include/asm/acpi.h | 5 ++++- drivers/acpi/sleep.c | 3 +++ 4 files changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index f886d4d..b66ba90 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -38,7 +38,10 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); /* Low-level suspend routine. */ extern int acpi_suspend_lowlevel(void); -extern unsigned long acpi_wakeup_address; +static inline unsigned long acpi_get_wakeup_address(void) +{ + return 0; +} /* * Record the cpei override flag and current logical cpu. This is diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 70d1587..a563652 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -42,8 +42,6 @@ int acpi_lapic; unsigned int acpi_cpei_override; unsigned int acpi_cpei_phys_cpuid; -unsigned long acpi_wakeup_address = 0; - #define ACPI_MAX_PLATFORM_INTERRUPTS 256 /* Array to record platform interrupt vectors for generic interrupt routing. */ diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index bc9693c..23ffafd 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -62,7 +62,10 @@ static inline void acpi_disable_pci(void) extern int (*acpi_suspend_lowlevel)(void); /* Physical address to resume after wakeup */ -#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start)) +static inline unsigned long acpi_get_wakeup_address(void) +{ + return ((unsigned long)(real_mode_header->wakeup_start)); +} /* * Check if the CPU can handle C2 and deeper diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 6747a27..4398806 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -61,8 +61,11 @@ static struct notifier_block tts_notifier = { static int acpi_sleep_prepare(u32 acpi_state) { #ifdef CONFIG_ACPI_SLEEP + unsigned long acpi_wakeup_address; + /* do we have a wakeup address for S2 and S3? */ if (acpi_state == ACPI_STATE_S3) { + acpi_wakeup_address = acpi_get_wakeup_address(); if (!acpi_wakeup_address) return -EFAULT; acpi_set_waking_vector(acpi_wakeup_address);