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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 886FECCA485 for ; Wed, 6 Jul 2022 14:04:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233860AbiGFOE6 (ORCPT ); Wed, 6 Jul 2022 10:04:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232935AbiGFOE4 (ORCPT ); Wed, 6 Jul 2022 10:04:56 -0400 Received: from mail-yw1-f179.google.com (mail-yw1-f179.google.com [209.85.128.179]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 386F4D72; Wed, 6 Jul 2022 07:04:54 -0700 (PDT) Received: by mail-yw1-f179.google.com with SMTP id 00721157ae682-2ef5380669cso140921697b3.9; Wed, 06 Jul 2022 07:04:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=UBE539EKjjJ8zkn99yLgr6sf0hQeHTgO/l2k1f9VAKg=; b=j7Hpuh+rnxj8p8uzhPFHnQPamCKDD//gbhyIFdN1y25RjFaNQ+hpMekINnCZ4pLLmC hc2g5LPX9BtAYs9kDES2t/wL/dDyLY302bbDf2L+HG7njpoj4DSFY6aJeytEfEVSnhiv qSjMqh/pT3aoJtHyYCu8AHKURj1TtP5mLiV1YZrZiPQ+cW6lmI8HbDwo8PBJ6j0P103m ULpvZwtTKNqPUAujleOqPFQpbCkIH0xEwxHD/X8tyO0WTXs91tV2lFa3DuEa3N+cPxug YfdggNuMLerHmaOwP821rM7mFTGyik4dQvldXpYrYj7uTZAdwprdiz5KML2+95CkqBR8 MMBA== X-Gm-Message-State: AJIora/nEoDBdwild/DaYPMHgAKtsMFKqtaEufUH27d1lZxUKpDDvvWl rY+Hh9YD5iE93IlCFQNbO1y1gQ0EA1YTPfKfMq4= X-Google-Smtp-Source: AGRyM1tzweDvK/HpOTrEcMtuYgu75xJlbU4wLmWYqVeEsIhNId5gL4a/NC1jAK4t+CVNf/Oa7/ufr1ZdqBFMCfc4FVA= X-Received: by 2002:a81:24c7:0:b0:314:1e60:a885 with SMTP id k190-20020a8124c7000000b003141e60a885mr46512506ywk.301.1657116293184; Wed, 06 Jul 2022 07:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> From: "Rafael J. Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, Russell King - ARM Linux , ulli.kroll@googlemail.com, Linus Walleij , Shawn Guo , Sascha Hauer , Sascha Hauer , Fabio Estevam , dl-linux-imx , Tony Lindgren , Kevin Hilman , Catalin Marinas , Will Deacon , Guo Ren , bcain@quicinc.com, Huacai Chen , kernel@xen0n.name, Geert Uytterhoeven , sammy@sammy.net, Michal Simek , Thomas Bogendoerfer , dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, Stafford Horne , James Bottomley , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , David Miller , Richard Weinberger , anton.ivanov@cambridgegreys.com, Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "the arch/x86 maintainers" , "H. Peter Anvin" , acme@kernel.org, Mark Rutland , Alexander Shishkin , jolsa@kernel.org, namhyung@kernel.org, Juergen Gross , srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, Boris Ostrovsky , Chris Zankel , jcmvbkbc@gmail.com, "Rafael J. Wysocki" , Len Brown , Pavel Machek , Greg Kroah-Hartman , Michael Turquette , Stephen Boyd , Daniel Lezcano , Lorenzo Pieralisi , Sudeep Holla , Andy Gross , Bjorn Andersson , Anup Patel , Thierry Reding , Jon Hunter , Jacob Pan , Arnd Bergmann , Yury Norov , Andy Shevchenko , Rasmus Villemoes , Steven Rostedt , Petr Mladek , senozhatsky@chromium.org, John Ogness , "Paul E. McKenney" , Frederic Weisbecker , quic_neeraju@quicinc.com, Josh Triplett , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Benjamin Segall , Mel Gorman , Daniel Bristot de Oliveira , vschneid@redhat.com, jpoimboe@kernel.org, linux-alpha@vger.kernel.org, Linux Kernel Mailing List , linux-snps-arc@lists.infradead.org, Linux ARM , Linux OMAP Mailing List , linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k , "open list:BROADCOM NVRAM DRIVER" , openrisc@lists.librecores.org, Parisc List , linuxppc-dev , linux-riscv , linux-s390@vger.kernel.org, Linux-sh list , sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-xtensa@linux-xtensa.org, ACPI Devel Maling List , Linux PM , linux-clk , linux-arm-msm , linux-tegra , linux-arch , rcu@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EDD8AC43334 for ; Wed, 6 Jul 2022 14:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lCAIijwRzDkHm9UbdgDkV6NfKHqopYalk7C40/oHq4I=; b=sxt0WNiT/5bVWd Og3U+JZTy3GOdYCtEfo9CJp2EwVQ9z/94q7nPx9D05Xnc//iCJ5J2Vf+98hml4RGF1B4jgrjBx65z 1ujJxFE7bd8drGMg649OFcnnYzNHvT297krSOdJZU6YB1AN6EI5xdAYKAr5YrE/y5C81Y4m37xabB YMmQnQo9lUhd6BuCx9bUOPFei1zwUjoZ4hS05tFLfDZUDGlEHxdEDJThK8Pj9BvR6gb7or2dkH8C7 E4KlwbSq2XX5C6/gmh2fEsJIVJ5BNTCBIjGy3JLRH7AdXBYNpvbeFEo3Y/ztyIcoiICqzIb7fDCRo gqDWL9mYTNVD6fksDLOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o95ej-00AWYj-Bs; Wed, 06 Jul 2022 14:05:29 +0000 Received: from mail-yw1-f180.google.com ([209.85.128.180]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o95eA-00AWKy-54; Wed, 06 Jul 2022 14:04:56 +0000 Received: by mail-yw1-f180.google.com with SMTP id 00721157ae682-31cf1adbf92so14210247b3.4; Wed, 06 Jul 2022 07:04:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=UBE539EKjjJ8zkn99yLgr6sf0hQeHTgO/l2k1f9VAKg=; b=SPGVVCnFyy30LAl97WOZrsgfSJ1s99p8UgkFf0ZSvgjXnfTgLtlVnpxXVYFmAhDsgx D7TOXJXkbikS+MiAnuU7IWX+9BFmR3eUWZIHSpJPivoRTusdXz95By/vRVR1srFW8Svt RGRpuT4sKHhAAcyaGivpX8tfLuQaBctqS6xU1zmTZDhClpiVLUtaX95Qira3bIYkKyBQ y5cWOMJXi+sxssq67SVKmJ0eEtD3Ddma8SxHXDLQXniGjmv+5//hPiDahKiM6oWSUP05 ES5eealj3VRsrQgDqhL6eKZhP/pwrbzZG42u1Ffm5lTHEtgiNlMJrvHVC9+Ozvaj1TdO k5Ug== X-Gm-Message-State: AJIora9ggsrPckTVZ3GsI06sddkbD1jEyfaALImjd6QFgpeicajnnqpi TlSezClkcRXi4ttOc4VT4W/ooHWGkdxjuTIsd1U= X-Google-Smtp-Source: AGRyM1tzweDvK/HpOTrEcMtuYgu75xJlbU4wLmWYqVeEsIhNId5gL4a/NC1jAK4t+CVNf/Oa7/ufr1ZdqBFMCfc4FVA= X-Received: by 2002:a81:24c7:0:b0:314:1e60:a885 with SMTP id k190-20020a8124c7000000b003141e60a885mr46512506ywk.301.1657116293184; Wed, 06 Jul 2022 07:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> From: "Rafael J. Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, Russell King - ARM Linux , ulli.kroll@googlemail.com, Linus Walleij , Shawn Guo , Sascha Hauer , Sascha Hauer , Fabio Estevam , dl-linux-imx , Tony Lindgren , Kevin Hilman , Catalin Marinas , Will Deacon , Guo Ren , bcain@quicinc.com, Huacai Chen , kernel@xen0n.name, Geert Uytterhoeven , sammy@sammy.net, Michal Simek , Thomas Bogendoerfer , dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, Stafford Horne , James Bottomley , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , David Miller , Richard Weinberger , anton.ivanov@cambridgegreys.com, Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "the arch/x86 maintainers" , "H. Peter Anvin" , acme@kernel.org, Mark Rutland , Alexander Shishkin , jolsa@kernel.org, namhyung@kernel.org, Juergen Gross , srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, Boris Ostrovsky , Chris Zankel , jcmvbkbc@gmail.com, "Rafael J. Wysocki" , Len Brown , Pavel Machek , Greg Kroah-Hartman , Michael Turquette , Stephen Boyd , Daniel Lezcano , Lorenzo Pieralisi , Sudeep Holla , Andy Gross , Bjorn Andersson , Anup Patel , Thierry Reding , Jon Hunter , Jacob Pan , Arnd Bergmann , Yury Norov , Andy Shevchenko , Rasmus Villemoes , Steven Rostedt , Petr Mladek , senozhatsky@chromium.org, John Ogness , "Paul E. McKenney" , Frederic Weisbecker , quic_neeraju@quicinc.com, Josh Triplett , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Benjamin Segall , Mel Gorman , Daniel Bristot de Oliveira , vschneid@redhat.com, jpoimboe@kernel.org, linux-alpha@vger.kernel.org, Linux Kernel Mailing List , linux-snps-arc@lists.infradead.org, Linux ARM , Linux OMAP Mailing List , linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k , "open list:BROADCOM NVRAM DRIVER" , openrisc@lists.librecores.org, Parisc List , linuxppc-dev , linux-riscv , linux-s390@vger.kernel.org, Linux-sh list , sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-xtensa@linux-xtensa.org, ACPI Devel Maling List , Linux PM , linux-clk , linux-arm-msm , linux-tegra , linux-arch , rcu@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220706_070454_236618_0A42651A X-CRM114-Status: GOOD ( 18.95 ) X-Mailman-Approved-At: Wed, 06 Jul 2022 07:05:16 -0700 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CC380CCA488 for ; Wed, 6 Jul 2022 14:05:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mvvDJeJh7PwT2ffsvWBdZ9lsss3m4PmNgIRkhwYOnN8=; b=LmjX15ywFt6uSH 7w+8bwOmyBaB9iZSH8DDaayUCkEmTfxCHYM7PPETlfiNe6C5aTXakRxKRMDhHTEM/Jl3AIlyfwpvR qdJ3N0TiLbywfVmp2DL22gFn8lxLkVYES1TUJLPmesrfEH+rwzHyEIqjFHD30ZyEVTTbPLOZQChwv Rw5QN+XE+mHd92A/qO4jkIrghmLUXVr7uSHd98USxMEmO9hY4w+ylXnbYrYdH0K8mYaUgmHdYUdUE cwr/pl9hKNLVSXZtu72ljtuAvS9KNHsN4y53DafHHZ7NQ6wi7QWq9OGmze7wYic50a2Mry9V+N2Gc T9fpFowxQMHJ+pOCgPlg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o95eE-00AWN1-IO; Wed, 06 Jul 2022 14:04:58 +0000 Received: from mail-yw1-f180.google.com ([209.85.128.180]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o95eA-00AWKy-54; Wed, 06 Jul 2022 14:04:56 +0000 Received: by mail-yw1-f180.google.com with SMTP id 00721157ae682-31cf1adbf92so14210247b3.4; Wed, 06 Jul 2022 07:04:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=UBE539EKjjJ8zkn99yLgr6sf0hQeHTgO/l2k1f9VAKg=; b=SPGVVCnFyy30LAl97WOZrsgfSJ1s99p8UgkFf0ZSvgjXnfTgLtlVnpxXVYFmAhDsgx D7TOXJXkbikS+MiAnuU7IWX+9BFmR3eUWZIHSpJPivoRTusdXz95By/vRVR1srFW8Svt RGRpuT4sKHhAAcyaGivpX8tfLuQaBctqS6xU1zmTZDhClpiVLUtaX95Qira3bIYkKyBQ y5cWOMJXi+sxssq67SVKmJ0eEtD3Ddma8SxHXDLQXniGjmv+5//hPiDahKiM6oWSUP05 ES5eealj3VRsrQgDqhL6eKZhP/pwrbzZG42u1Ffm5lTHEtgiNlMJrvHVC9+Ozvaj1TdO k5Ug== X-Gm-Message-State: AJIora9ggsrPckTVZ3GsI06sddkbD1jEyfaALImjd6QFgpeicajnnqpi TlSezClkcRXi4ttOc4VT4W/ooHWGkdxjuTIsd1U= X-Google-Smtp-Source: AGRyM1tzweDvK/HpOTrEcMtuYgu75xJlbU4wLmWYqVeEsIhNId5gL4a/NC1jAK4t+CVNf/Oa7/ufr1ZdqBFMCfc4FVA= X-Received: by 2002:a81:24c7:0:b0:314:1e60:a885 with SMTP id k190-20020a8124c7000000b003141e60a885mr46512506ywk.301.1657116293184; Wed, 06 Jul 2022 07:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> From: "Rafael J. Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, Russell King - ARM Linux , ulli.kroll@googlemail.com, Linus Walleij , Shawn Guo , Sascha Hauer , Sascha Hauer , Fabio Estevam , dl-linux-imx , Tony Lindgren , Kevin Hilman , Catalin Marinas , Will Deacon , Guo Ren , bcain@quicinc.com, Huacai Chen , kernel@xen0n.name, Geert Uytterhoeven , sammy@sammy.net, Michal Simek , Thomas Bogendoerfer , dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, Stafford Horne , James Bottomley , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , David Miller , Richard Weinberger , anton.ivanov@cambridgegreys.com, Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "the arch/x86 maintainers" , "H. Peter Anvin" , acme@kernel.org, Mark Rutland , Alexander Shishkin , jolsa@kernel.org, namhyung@kernel.org, Juergen Gross , srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, Boris Ostrovsky , Chris Zankel , jcmvbkbc@gmail.com, "Rafael J. Wysocki" , Len Brown , Pavel Machek , Greg Kroah-Hartman , Michael Turquette , Stephen Boyd , Daniel Lezcano , Lorenzo Pieralisi , Sudeep Holla , Andy Gross , Bjorn Andersson , Anup Patel , Thierry Reding , Jon Hunter , Jacob Pan , Arnd Bergmann , Yury Norov , Andy Shevchenko , Rasmus Villemoes , Steven Rostedt , Petr Mladek , senozhatsky@chromium.org, John Ogness , "Paul E. McKenney" , Frederic Weisbecker , quic_neeraju@quicinc.com, Josh Triplett , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Benjamin Segall , Mel Gorman , Daniel Bristot de Oliveira , vschneid@redhat.com, jpoimboe@kernel.org, linux-alpha@vger.kernel.org, Linux Kernel Mailing List , linux-snps-arc@lists.infradead.org, Linux ARM , Linux OMAP Mailing List , linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k , "open list:BROADCOM NVRAM DRIVER" , openrisc@lists.librecores.org, Parisc List , linuxppc-dev , linux-riscv , linux-s390@vger.kernel.org, Linux-sh list , sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-xtensa@linux-xtensa.org, ACPI Devel Maling List , Linux PM , linux-clk , linux-arm-msm , linux-tegra , linux-arch , rcu@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220706_070454_236618_0A42651A X-CRM114-Status: GOOD ( 18.95 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc 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 Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A280ECCA486 for ; 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Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Cc: Juri Lelli , "Rafael J. Wysocki" , Benjamin Herrenschmidt , Linus Walleij , Benjamin Segall , Guo Ren , Pavel Machek , Alexander Gordeev , linux-arch , Vincent Guittot , Michael Ellerman , Huacai Chen , ACPI Devel Maling List , Andy Gross , Geert Uytterhoeven , dl-linux-imx , Catalin Marinas , xen-devel@lists.xenproject.org, mattst88@gmail.com, Michael Turquette , sammy@sammy.net, Petr Mladek , Linux PM , Lai Jiangshan , Sascha Hauer , linux-um@lists.infradead.org, acme@kernel.org, Thomas Gleixner , Linux OMAP Mailing List , Dietmar Eggemann , rth@twiddle.net, Greg Kroah-Hartman , Linux Kernel Mailing List , linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, Sven Schnelle , jolsa@kernel.org, Paul Mackerras , Mark Rutland , linux-ia64@vger.kernel.org, Dave Hansen , virtualization@lists.linux-foundation.org, James Bottomley , jcmvbkbc@gmail.com, Thierry Reding , kernel@xen0n.name, quic_neeraju@quicinc.com, linux-s390@vger.kernel.org, vschneid@redhat.com, John Ogness , Yoshinori Sato , Linux-sh list , Fabio Estevam , Helge Deller , Daniel Lezcano , Jon Hunter , Mathieu Desnoyers , Frederic Weisbecker , Len Brown , linux-xtensa@linux-xtensa.org, Sascha Hauer , Vasily Gorbik , linux-arm-msm , linux-alpha@vger.kernel.org, linux-m68k , Stafford Horne , Linux ARM , Chris Zankel , Stephen Boyd , dinguyen@kernel.org, Daniel Bristot de Oliveira , Alexander Shishkin , Lorenzo Pieralisi , Rasmus Villemoes , Joel Fernandes , Will Deacon , Boris Ostrovsky , Kevin Hilman , linux-csky@vger.kernel.org, pv-drivers@vmware.com, linux-snps-arc@lists.infradead.org, Mel Gorman , Jacob Pan , Arnd Bergmann , ulli.kroll@googlemail.com, vgupta@kernel.org, linux-clk , Josh Triplett , Steven Rostedt , rcu@vger.kernel.org, Borislav Petkov , bcain@quicinc.com, Thomas Bogendoerfer , Parisc List , Sudeep Holla , Shawn Guo , David Miller , Rich Felker , Tony Lindgren , amakhalov@vmware.com, Bjorn Andersson , "H. 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McKenney" , Heiko Carstens , stefan.kristiansson@saunalahti.fi, openrisc@lists.librecores.org, Paul Walmsley , linux-tegra , namhyung@kernel.org, Andy Shevchenko , jpoimboe@kernel.org, Juergen Gross , Michal Simek , "open list:BROADCOM NVRAM DRIVER" , Palmer Dabbelt , Anup Patel , ink@jurassic.park.msu.ru, Johannes Berg , linuxppc-dev X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization 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 Received: from mail.librecores.org (lists.librecores.org [88.198.125.70]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9DAF1CCA485 for ; Wed, 6 Jul 2022 21:55:32 +0000 (UTC) Received: from [172.31.1.100] (localhost.localdomain [127.0.0.1]) by mail.librecores.org (Postfix) with ESMTP id 612B724973; Wed, 6 Jul 2022 23:55:31 +0200 (CEST) Received: from mail-yw1-f182.google.com (mail-yw1-f182.google.com [209.85.128.182]) by mail.librecores.org (Postfix) with ESMTPS id 763492492A for ; Wed, 6 Jul 2022 16:04:54 +0200 (CEST) Received: by mail-yw1-f182.google.com with SMTP id 00721157ae682-31c89653790so89963287b3.13 for ; Wed, 06 Jul 2022 07:04:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=UBE539EKjjJ8zkn99yLgr6sf0hQeHTgO/l2k1f9VAKg=; b=KTlM6k3BYyg+qO/ZTlhfEF8bXwEtJyLVCIO5OOKnrwOPacqm17FtlgXPmTUpAIQOmQ HPL96w7lSGwei7KCGlzE/OphHYjJr+RVy6SDWF0SYNdHq8r5rCDhPptqMg6tluNGUdF8 tvYSqG7Ll/Z0TwNYS0VXEQGYwd33At4KKrvxdi/0tQ32DOuSE0ucYyvbWsLdUeTvfSUF PEnfTYTcTUWuvJU4GuykdTBK15lF6/PbJRbF3OJhjX4WqxEJ/BFOxw3Bh2mz+jpyWkrd SnmHcEzr5U8HjuUibOyhCmLYjvSWH9fKmb/ciXi2s7r1oeFFPp0GXL4SoI7Nm2ulu+iH rqlQ== X-Gm-Message-State: AJIora9rXQozVdeU+CPbVICPRlkU+CrxbG/2rvnMZESgy+PYV2mqcUbu CGjR+0u0WD0l82GGoQjfXdrul1fo3eLGYvLZVJ8= X-Google-Smtp-Source: AGRyM1tzweDvK/HpOTrEcMtuYgu75xJlbU4wLmWYqVeEsIhNId5gL4a/NC1jAK4t+CVNf/Oa7/ufr1ZdqBFMCfc4FVA= X-Received: by 2002:a81:24c7:0:b0:314:1e60:a885 with SMTP id k190-20020a8124c7000000b003141e60a885mr46512506ywk.301.1657116293184; Wed, 06 Jul 2022 07:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> From: "Rafael J. Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Wed, 06 Jul 2022 23:55:27 +0200 X-BeenThere: openrisc@lists.librecores.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussion around the OpenRISC processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , "Rafael J. Wysocki" , Benjamin Herrenschmidt , Linus Walleij , Benjamin Segall , Guo Ren , Pavel Machek , Alexander Gordeev , srivatsa@csail.mit.edu, linux-arch , Vincent Guittot , Michael Ellerman , Huacai Chen , ACPI Devel Maling List , Andy Gross , dl-linux-imx , Catalin Marinas , xen-devel@lists.xenproject.org, mattst88@gmail.com, Christian Borntraeger , Michael Turquette , sammy@sammy.net, Petr Mladek , Linux PM , Lai Jiangshan , Sascha Hauer , linux-um@lists.infradead.org, acme@kernel.org, Thomas Gleixner , Linux OMAP Mailing List , Dietmar Eggemann , rth@twiddle.net, Greg Kroah-Hartman , Linux Kernel Mailing List , linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, Sven Schnelle , jolsa@kernel.org, Paul Mackerras , Mark Rutland , linux-ia64@vger.kernel.org, Dave Hansen , virtualization@lists.linux-foundation.org, James Bottomley , jcmvbkbc@gmail.com, Thierry Reding , kernel@xen0n.name, quic_neeraju@quicinc.com, linux-s390@vger.kernel.org, vschneid@redhat.com, John Ogness , Yoshinori Sato , Linux-sh list , Fabio Estevam , Helge Deller , Daniel Lezcano , Jon Hunter , Mathieu Desnoyers , Frederic Weisbecker , Len Brown , linux-xtensa@linux-xtensa.org, Sascha Hauer , Vasily Gorbik , linux-arm-msm , linux-alpha@vger.kernel.org, linux-m68k , Linux ARM , Chris Zankel , Stephen Boyd , dinguyen@kernel.org, Daniel Bristot de Oliveira , Alexander Shishkin , Lorenzo Pieralisi , Rasmus Villemoes , Joel Fernandes , Will Deacon , Boris Ostrovsky , Kevin Hilman , linux-csky@vger.kernel.org, pv-drivers@vmware.com, linux-snps-arc@lists.infradead.org, Mel Gorman , Jacob Pan , Arnd Bergmann , ulli.kroll@googlemail.com, vgupta@kernel.org, linux-clk , Josh Triplett , Steven Rostedt , rcu@vger.kernel.org, Borislav Petkov , bcain@quicinc.com, Thomas Bogendoerfer , Parisc List , Sudeep Holla , Shawn Guo , David Miller , Rich Felker , Tony Lindgren , amakhalov@vmware.com, Bjorn Andersson , "H. Peter Anvin" , sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv , anton.ivanov@cambridgegreys.com, jonas@southpole.se, Yury Norov , Richard Weinberger , the arch/x86 maintainers , Russell King - ARM Linux , Ingo Molnar , Albert Ou , "Paul E. McKenney" , Heiko Carstens , openrisc@lists.librecores.org, Paul Walmsley , linux-tegra , namhyung@kernel.org, Andy Shevchenko , jpoimboe@kernel.org, Juergen Gross , Michal Simek , "open list:BROADCOM NVRAM DRIVER" , Palmer Dabbelt , Anup Patel , ink@jurassic.park.msu.ru, Johannes Berg , linuxppc-dev Errors-To: openrisc-bounces@lists.librecores.org Sender: "OpenRISC" On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > 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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9F22DC43334 for ; Wed, 6 Jul 2022 22:21:08 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4LdYsb2Rtlz3chm for ; Thu, 7 Jul 2022 08:21:07 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=209.85.128.172; helo=mail-yw1-f172.google.com; envelope-from=rjwysocki@gmail.com; receiver=) Received: from mail-yw1-f172.google.com (mail-yw1-f172.google.com [209.85.128.172]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4LdLs42fB3z2xTj for ; Thu, 7 Jul 2022 00:04:55 +1000 (AEST) Received: by mail-yw1-f172.google.com with SMTP id 00721157ae682-31c8a1e9e33so88812787b3.5 for ; Wed, 06 Jul 2022 07:04:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=UBE539EKjjJ8zkn99yLgr6sf0hQeHTgO/l2k1f9VAKg=; b=iJanci/QXrtIWssopj1IjGR5VdgjoLKzafTaWT31YSa+R5l0ObmvArE5B37GncZdAT hzdhET4YVK3J9x2pW3+2ZGqHShoqGYzN2O1hwJ5XJEGykeuFYW/X3rFRmTfeh2T2+Exv gNY1EX5MCgylqPTQ5ObhH2mklcBhlpB4Pde3vUcJkvN5Et60AiNoOmqEQn2a65j344tD 3tGrYyuTDCAOkhUXCBFy5mDFsLwIaN/DRtIziO70lx1oxHYg3/2uraClCzg6675Jrj5N WfUqwFDuS0txLbMKKo4wtt1BvNs/BVTr0wQ1/e9sqad7jJkObO1JrTJTxM1C9dqjiLyE nJoQ== X-Gm-Message-State: AJIora/DEWr+IKfROatAsiFLyNy8ohlHAOkOB7sqZGPO8GrwVXTmHlDt SZpFwpFr+icj+XygsW3gaTJVqJI7ZyulRmC3Zpc= X-Google-Smtp-Source: AGRyM1tzweDvK/HpOTrEcMtuYgu75xJlbU4wLmWYqVeEsIhNId5gL4a/NC1jAK4t+CVNf/Oa7/ufr1ZdqBFMCfc4FVA= X-Received: by 2002:a81:24c7:0:b0:314:1e60:a885 with SMTP id k190-20020a8124c7000000b003141e60a885mr46512506ywk.301.1657116293184; Wed, 06 Jul 2022 07:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> From: "Rafael J. Wysocki" Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean To: Peter Zijlstra Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Thu, 07 Jul 2022 08:18:29 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , "Rafael J. Wysocki" , Linus Walleij , Benjamin Segall , Guo Ren , Pavel Machek , Alexander Gordeev , srivatsa@csail.mit.edu, linux-arch , Vincent Guittot , Huacai Chen , ACPI Devel Maling List , Andy Gross , Geert Uytterhoeven , dl-linux-imx , Catalin Marinas , xen-devel@lists.xenproject.org, mattst88@gmail.com, Christian Borntraeger , Michael Turquette , sammy@sammy.net, Petr Mladek , Linux PM , Lai Jiangshan , Sascha Hauer , linux-um@lists.infradead.org, acme@kernel.org, Thomas Gleixner , Linux OMAP Mailing List , Dietmar Eggemann , rth@twiddle.net, Greg Kroah-Hartman , Linux Kernel Mailing List , linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, Sven Schnelle , jolsa@kernel.org, Paul Mackerras , Mark Rutland , linux-ia64@vger.kernel.org, Dave Hansen , virtualization@lists.linux-foundation.org, James Bottomley , jcmvbkbc@gmail.com, Thierry Reding , kernel@xen0n.name, quic_neeraju@quicinc.com, linux-s390@vger.kernel.org, vschneid@redhat.com, John Ogness , Yoshinori Sato , Linux-sh list , Fabio Estevam , Helge Deller , Daniel Lezcano , Jon H unter , Mathieu Desnoyers , Frederic Weisbecker , Len Brown , linux-xtensa@linux-xtensa.org, Sascha Hauer , Vasily Gorbik , linux-arm-msm , linux-alpha@vger.kernel.org, linux-m68k , Stafford Horne , Linux ARM , Chris Zankel , Stephen Boyd , dinguyen@kernel.org, Daniel Bristot de Oliveira , Alexander Shishkin , Lorenzo Pieralisi , Rasmus Villemoes , Joel Fernandes , Will Deacon , Boris Ostrovsky , Kevin Hilman , linux-csky@vger.kernel.org, pv-drivers@vmware.com, linux-snps-arc@lists.infradead.org, Mel Gorman , Jacob Pan , Arnd Bergmann , ulli.kroll@googlemail.com, vgupta@kernel.org, linux-clk , Josh Triplett , Steven Rostedt , rcu@vger.kernel.org, Borislav Petkov , bcain@quicinc.com, Thomas Bogendoerfer , Parisc List , Sudeep Holla , Shawn Guo , David Miller , Rich Felker , Tony Lindgren , amakhalov@vmware.com, Bjorn Andersson , "H. Peter Anvin" , sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv , anton.ivanov@cambridgegreys.com, jonas@southpole.se, Yury Norov , Richard Weinberger , the arch/x86 maintainers , Russell King - ARM Linux , Ingo Molnar , Al bert Ou , "Paul E. McKenney" < paulmck@kernel.org>, Heiko Carstens , stefan.kristiansson@saunalahti.fi, openrisc@lists.librecores.org, Paul Walmsley , linux-tegra , namhyung@kernel.org, Andy Shevchenko , jpoimboe@kernel.org, Juergen Gross , Michal Simek , "open list:BROADCOM NVRAM DRIVER" , Palmer Dabbelt , Anup Patel , ink@jurassic.park.msu.ru, Johannes Berg , linuxppc-dev Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Date: Wed, 06 Jul 2022 14:04:42 +0000 Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean Message-Id: List-Id: References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> In-Reply-To: <20220608144517.885263942@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Peter Zijlstra Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, Russell King - ARM Linux , ulli.kroll@googlemail.com, Linus Walleij , Shawn Guo , Sascha Hauer , Sascha Hauer , Fabio Estevam , dl-linux-imx , Tony Lindgren , Kevin Hilman , Catalin Marinas , Will Deacon , Guo Ren , bcain@quicinc.com, Huacai Chen , kernel@xen0n.name, Geert Uytterhoeven , sammy@sammy.net, Michal Simek , Thomas Bogendoerfer , dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, Stafford Horne , James Bottomley , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , David Miller , Richard Weinberger , anton.ivanov@cambridgegreys.com, Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , the arch/x86 maintainers , "H. Peter Anvin" , acme@kernel.org, Mark Rutland , Alexander Shishkin , jolsa@kernel.org, namhyung@kernel.org, Juergen Gross , srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, Boris Ostrovsky , Chris Zankel , jcmvbkbc@gmail.com, "Rafael J. Wysocki" , Len Brown , Pavel Machek , Greg Kroah-Hartman , Michael Turquette , Stephen Boyd , Daniel Lezcano , Lorenzo Pieralisi , Sudeep Holla , Andy Gross , Bjorn Andersson , Anup Patel , Thierry Reding , Jon Hunter , Jacob Pan , Arnd Bergmann , Yury Norov , Andy Shevchenko , Rasmus Villemoes , Steven Rostedt , Petr Mladek , senozhatsky@chromium.org, John Ogness , "Paul E. McKenney" , Frederic Weisbecker , quic_neeraju@quicinc.com, Josh Triplett , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Benjamin Segall , Mel Gorman , Daniel Bristot de Oliveira , vschneid@redhat.com, jpoimboe@kernel.org, linux-alpha@vger.kernel.org, Linux Kernel Mailing List , linux-snps-arc@lists.infradead.org, Linux ARM , Linux OMAP Mailing List , linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k , "open list:BROADCOM NVRAM DRIVER" , openrisc@lists.librecores.org, Parisc List , linuxppc-dev , linux-riscv , linux-s390@vger.kernel.org, Linux-sh list , sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-xtensa@linux-xtensa.org, ACPI Devel Maling List , Linux PM , linux-clk , linux-arm-msm , linux-tegra , linux-arch , rcu@vger.kernel.org On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > > From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean Date: Wed, 6 Jul 2022 16:04:42 +0200 Message-ID: References: <20220608142723.103523089@infradead.org> <20220608144517.885263942@infradead.org> Mime-Version: 1.0 Return-path: In-Reply-To: <20220608144517.885263942@infradead.org> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Peter Zijlstra Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, Russell King - ARM Linux , ulli.kroll@googlemail.com, Linus Walleij , Shawn Guo , Sascha Hauer , Sascha Hauer , Fabio Estevam , dl-linux-imx , Tony Lindgren , Kevin Hilman , Catalin Marinas , Will Deacon , Guo Ren , bcain@quicinc.com, Huacai Chen , kernel@xen0n.name, Geert Uytterhoeven , sammy@sammy.net, Michal Simek , Thomas Bogendoerfer On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() leaves .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0x115: call to acpi_idle_fallback_to_c1.isra.0() leaves .noinstr.text section > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Rafael J. Wysocki > --- > arch/x86/include/asm/shared/io.h | 4 ++-- > drivers/acpi/processor_idle.c | 2 +- > include/linux/cpumask.h | 4 ++-- > 3 files changed, 5 insertions(+), 5 deletions(-) > > --- a/arch/x86/include/asm/shared/io.h > +++ b/arch/x86/include/asm/shared/io.h > @@ -5,13 +5,13 @@ > #include > > #define BUILDIO(bwl, bw, type) \ > -static inline void __out##bwl(type value, u16 port) \ > +static __always_inline void __out##bwl(type value, u16 port) \ > { \ > asm volatile("out" #bwl " %" #bw "0, %w1" \ > : : "a"(value), "Nd"(port)); \ > } \ > \ > -static inline type __in##bwl(u16 port) \ > +static __always_inline type __in##bwl(u16 port) \ > { \ > type value; \ > asm volatile("in" #bwl " %w1, %" #bw "0" \ > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -593,7 +593,7 @@ static int acpi_idle_play_dead(struct cp > return 0; > } > > -static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > +static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) > { > return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst && > !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED); > --- a/include/linux/cpumask.h > +++ b/include/linux/cpumask.h > @@ -908,9 +908,9 @@ static inline const struct cpumask *get_ > * concurrent CPU hotplug operations unless invoked from a cpuhp_lock held > * region. > */ > -static inline unsigned int num_online_cpus(void) > +static __always_inline unsigned int num_online_cpus(void) > { > - return atomic_read(&__num_online_cpus); > + return arch_atomic_read(&__num_online_cpus); > } > #define num_possible_cpus() cpumask_weight(cpu_possible_mask) > #define num_present_cpus() cpumask_weight(cpu_present_mask) > >