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[109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:26 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 01/21] notifier: Add blocking_notifier_call_chain_is_empty() Date: Mon, 31 Jan 2022 02:36:58 +0300 Message-Id: <20220130233718.21544-2-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add blocking_notifier_call_chain_is_empty() that returns true if call chain is empty. Signed-off-by: Dmitry Osipenko --- include/linux/notifier.h | 2 ++ kernel/notifier.c | 13 +++++++++++++ 2 files changed, 15 insertions(+) diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 87069b8459af..d4717bc0ab85 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -173,6 +173,8 @@ extern int blocking_notifier_call_chain_robust(struct blocking_notifier_head *nh extern int raw_notifier_call_chain_robust(struct raw_notifier_head *nh, unsigned long val_up, unsigned long val_down, void *v); +extern bool blocking_notifier_call_chain_is_empty(struct blocking_notifier_head *nh); + #define NOTIFY_DONE 0x0000 /* Don't care */ #define NOTIFY_OK 0x0001 /* Suits me */ #define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ diff --git a/kernel/notifier.c b/kernel/notifier.c index ba005ebf4730..4ed6bda8f127 100644 --- a/kernel/notifier.c +++ b/kernel/notifier.c @@ -323,6 +323,19 @@ int blocking_notifier_call_chain(struct blocking_notifier_head *nh, } EXPORT_SYMBOL_GPL(blocking_notifier_call_chain); +/** + * blocking_notifier_call_chain_is_empty - Check whether notifier chain is empty + * @nh: Pointer to head of the blocking notifier chain + * + * Checks whether notifier chain is empty. + * + * Returns true is notifier chain is empty, false otherwise. + */ +bool blocking_notifier_call_chain_is_empty(struct blocking_notifier_head *nh) +{ + return !rcu_access_pointer(nh->head); +} + /* * Raw notifier chain routines. There is no protection; * the caller must provide it. Use at your own risk! From patchwork Sun Jan 30 23:36:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539214 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 6C501C433FE for ; Sun, 30 Jan 2022 23:37:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356988AbiA3Xhh (ORCPT ); Sun, 30 Jan 2022 18:37:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356950AbiA3Xhb (ORCPT ); Sun, 30 Jan 2022 18:37:31 -0500 Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9AC1EC061714; Sun, 30 Jan 2022 15:37:30 -0800 (PST) Received: by mail-lf1-x132.google.com with SMTP id p27so23342078lfa.1; Sun, 30 Jan 2022 15:37:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=abZuVOnKYJAOti8qIudzltr7GQTBeB9LiERH+rgMBF4=; b=p0RaoTyud6v2TpDuA71R51f3ompbP9DRaCJYPeyLts5rHK9ixyqkUUhLaSJgb2r2Bg 2TTG5yphU072WSUMSAx/Z+kedFFVoyzjVzcSIYIUbH1Yygh8uhixqRaJerJ4N4thXRrQ oujlk5kkszBM8GgYOLJuChJo6KFJbDZwMBSQdgvwviExvuANo3f0HA/iWpifG7cGjO9P b27LiqDaZyav/RPf+JoXyPtERudU0yiqx/A+AO0NhKUrQUUb079dd3JY2rcLq6SyDepk dR2VkwBl97GbYrFjbl4KaoSrBe6E7PpqgsF7oDcCPQvs2XTA7ek0i6MDjXu+YxCSo722 08Aw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=abZuVOnKYJAOti8qIudzltr7GQTBeB9LiERH+rgMBF4=; b=26SiEgaoJ70GJ4QGqAMcXuS7taxZIkzNmue8wUjCjO8n9I1CeBsmM/ZFTfxAKtexfp GOMCfLqlmgxjuOyTRT3YKH/Dkpc5GWAMBe3lhTBH/O3jdLUelqyeev+JGNWofll/FDYr XjvMGQ4SmlhI1wDZaJmIlvrY3VKUYeiivSwVH4jdz6omFeXyLnV+mbOzXwJcLFuVX2O1 4uWpK1S4IaLpj//S01MZW+2icY/jkmctXo7+elcJuGqbpVHVBo41oWeyuvjHPgvqGgxt tSMjzB1gZsxe9sgt7ra0I/yko1V6+Tz//vy2IMD+Jn6z+mvoIVi8l6BpXevfaauBTDMc kalA== X-Gm-Message-State: AOAM530/gul08TOyZJVK9SqN7AoJ/E3vVF4rWZhFkaN8lDArLfZFqR0/ LMw1YjXn4v6H2ZC9rYOj44w= X-Google-Smtp-Source: ABdhPJwoSJ34ynL6g6uCWlwcTzESsIxMTUNdOjTg1GYgEDzDCVzjTtPXpJhMlyQWeh/100C0s5LuvA== X-Received: by 2002:ac2:554a:: with SMTP id l10mr13295710lfk.534.1643585848967; Sun, 30 Jan 2022 15:37:28 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:28 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 02/21] notifier: Add atomic/blocking_notifier_chain_register_unique_prio() Date: Mon, 31 Jan 2022 02:36:59 +0300 Message-Id: <20220130233718.21544-3-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add variant of atomic/blocking_notifier_chain_register() functions that doesn't allow to register notifier using a duplicated priority. The -EBUSY error code is returned in this case by the new API functions. Signed-off-by: Dmitry Osipenko --- include/linux/notifier.h | 5 +++ kernel/notifier.c | 88 +++++++++++++++++++++++++++++++--------- 2 files changed, 74 insertions(+), 19 deletions(-) diff --git a/include/linux/notifier.h b/include/linux/notifier.h index d4717bc0ab85..ccce26197dd2 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -150,6 +150,11 @@ extern int raw_notifier_chain_register(struct raw_notifier_head *nh, extern int srcu_notifier_chain_register(struct srcu_notifier_head *nh, struct notifier_block *nb); +extern int atomic_notifier_chain_register_unique_prio( + struct atomic_notifier_head *nh, struct notifier_block *nb); +extern int blocking_notifier_chain_register_unique_prio( + struct blocking_notifier_head *nh, struct notifier_block *nb); + extern int atomic_notifier_chain_unregister(struct atomic_notifier_head *nh, struct notifier_block *nb); extern int blocking_notifier_chain_unregister(struct blocking_notifier_head *nh, diff --git a/kernel/notifier.c b/kernel/notifier.c index 4ed6bda8f127..4fc32b1e6cbb 100644 --- a/kernel/notifier.c +++ b/kernel/notifier.c @@ -20,7 +20,8 @@ BLOCKING_NOTIFIER_HEAD(reboot_notifier_list); */ static int notifier_chain_register(struct notifier_block **nl, - struct notifier_block *n) + struct notifier_block *n, + bool unique_priority) { while ((*nl) != NULL) { if (unlikely((*nl) == n)) { @@ -30,6 +31,8 @@ static int notifier_chain_register(struct notifier_block **nl, } if (n->priority > (*nl)->priority) break; + if (n->priority == (*nl)->priority && unique_priority) + return -EBUSY; nl = &((*nl)->next); } n->next = *nl; @@ -144,12 +147,35 @@ int atomic_notifier_chain_register(struct atomic_notifier_head *nh, int ret; spin_lock_irqsave(&nh->lock, flags); - ret = notifier_chain_register(&nh->head, n); + ret = notifier_chain_register(&nh->head, n, false); spin_unlock_irqrestore(&nh->lock, flags); return ret; } EXPORT_SYMBOL_GPL(atomic_notifier_chain_register); +/** + * atomic_notifier_chain_register_unique_prio - Add notifier to an atomic notifier chain + * @nh: Pointer to head of the atomic notifier chain + * @n: New entry in notifier chain + * + * Adds a notifier to an atomic notifier chain if there is no other + * notifier registered using the same priority. + * + * Returns 0 on success, %-EEXIST or %-EBUSY on error. + */ +int atomic_notifier_chain_register_unique_prio(struct atomic_notifier_head *nh, + struct notifier_block *n) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&nh->lock, flags); + ret = notifier_chain_register(&nh->head, n, true); + spin_unlock_irqrestore(&nh->lock, flags); + return ret; +} +EXPORT_SYMBOL_GPL(atomic_notifier_chain_register_unique_prio); + /** * atomic_notifier_chain_unregister - Remove notifier from an atomic notifier chain * @nh: Pointer to head of the atomic notifier chain @@ -209,18 +235,9 @@ NOKPROBE_SYMBOL(atomic_notifier_call_chain); * synchronized by an rwsem. */ -/** - * blocking_notifier_chain_register - Add notifier to a blocking notifier chain - * @nh: Pointer to head of the blocking notifier chain - * @n: New entry in notifier chain - * - * Adds a notifier to a blocking notifier chain. - * Must be called in process context. - * - * Returns 0 on success, %-EEXIST on error. - */ -int blocking_notifier_chain_register(struct blocking_notifier_head *nh, - struct notifier_block *n) +static int __blocking_notifier_chain_register(struct blocking_notifier_head *nh, + struct notifier_block *n, + bool unique_priority) { int ret; @@ -230,15 +247,48 @@ int blocking_notifier_chain_register(struct blocking_notifier_head *nh, * such times we must not call down_write(). */ if (unlikely(system_state == SYSTEM_BOOTING)) - return notifier_chain_register(&nh->head, n); + return notifier_chain_register(&nh->head, n, unique_priority); down_write(&nh->rwsem); - ret = notifier_chain_register(&nh->head, n); + ret = notifier_chain_register(&nh->head, n, unique_priority); up_write(&nh->rwsem); return ret; } + +/** + * blocking_notifier_chain_register - Add notifier to a blocking notifier chain + * @nh: Pointer to head of the blocking notifier chain + * @n: New entry in notifier chain + * + * Adds a notifier to a blocking notifier chain. + * Must be called in process context. + * + * Returns 0 on success, %-EEXIST on error. + */ +int blocking_notifier_chain_register(struct blocking_notifier_head *nh, + struct notifier_block *n) +{ + return __blocking_notifier_chain_register(nh, n, false); +} EXPORT_SYMBOL_GPL(blocking_notifier_chain_register); +/** + * blocking_notifier_chain_register_unique_prio - Add notifier to a blocking notifier chain + * @nh: Pointer to head of the blocking notifier chain + * @n: New entry in notifier chain + * + * Adds a notifier to an blocking notifier chain if there is no other + * notifier registered using the same priority. + * + * Returns 0 on success, %-EEXIST or %-EBUSY on error. + */ +int blocking_notifier_chain_register_unique_prio(struct blocking_notifier_head *nh, + struct notifier_block *n) +{ + return __blocking_notifier_chain_register(nh, n, true); +} +EXPORT_SYMBOL_GPL(blocking_notifier_chain_register_unique_prio); + /** * blocking_notifier_chain_unregister - Remove notifier from a blocking notifier chain * @nh: Pointer to head of the blocking notifier chain @@ -354,7 +404,7 @@ bool blocking_notifier_call_chain_is_empty(struct blocking_notifier_head *nh) int raw_notifier_chain_register(struct raw_notifier_head *nh, struct notifier_block *n) { - return notifier_chain_register(&nh->head, n); + return notifier_chain_register(&nh->head, n, false); } EXPORT_SYMBOL_GPL(raw_notifier_chain_register); @@ -433,10 +483,10 @@ int srcu_notifier_chain_register(struct srcu_notifier_head *nh, * such times we must not call mutex_lock(). */ if (unlikely(system_state == SYSTEM_BOOTING)) - return notifier_chain_register(&nh->head, n); + return notifier_chain_register(&nh->head, n, false); mutex_lock(&nh->mutex); - ret = notifier_chain_register(&nh->head, n); + ret = notifier_chain_register(&nh->head, n, false); mutex_unlock(&nh->mutex); return ret; } From patchwork Sun Jan 30 23:37:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538379 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 B28C9C4167D for ; Sun, 30 Jan 2022 23:37:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356991AbiA3Xhi (ORCPT ); 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[109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:30 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 03/21] reboot: Print error message if restart handler has duplicated priority Date: Mon, 31 Jan 2022 02:37:00 +0300 Message-Id: <20220130233718.21544-4-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add sanity check which ensures that there are no two restart handlers registered using the same priority. This requirement will become mandatory once all drivers will be converted to the new API and such errors will be fixed. Signed-off-by: Dmitry Osipenko --- kernel/reboot.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/kernel/reboot.c b/kernel/reboot.c index 6bcc5d6a6572..35f0cde641c1 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -182,6 +182,21 @@ static ATOMIC_NOTIFIER_HEAD(restart_handler_list); */ int register_restart_handler(struct notifier_block *nb) { + int ret; + + ret = atomic_notifier_chain_register_unique_prio(&restart_handler_list, nb); + if (ret != -EBUSY) + return ret; + + /* + * Handler must have unique priority. Otherwise call order is + * determined by registration order, which is unreliable. + * + * This requirement will become mandatory once all drivers + * will be converted to use new sys-off API. + */ + pr_err("failed to register restart handler using unique priority\n"); + return atomic_notifier_chain_register(&restart_handler_list, nb); } EXPORT_SYMBOL(register_restart_handler); From patchwork Sun Jan 30 23:37:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538377 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 7452CC433F5 for ; Sun, 30 Jan 2022 23:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357133AbiA3Xhl (ORCPT ); Sun, 30 Jan 2022 18:37:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356979AbiA3Xhf (ORCPT ); Sun, 30 Jan 2022 18:37:35 -0500 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B69AEC06173E; Sun, 30 Jan 2022 15:37:34 -0800 (PST) Received: by mail-lf1-x12a.google.com with SMTP id bu18so23307397lfb.5; Sun, 30 Jan 2022 15:37:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=38q4P9PH9nES8RczvE7OnqqkPXztayfrVWMcaUM8s+A=; b=Q5MMOfb7rSODkS2kn3q5XZwf8zqIJ51IQ9xubkbgFUXSkjeQuaWSup3m+O4pqzEDb+ E5n9vGkwG0A9gd4ThXBeoS4gmKX3lE/LDT4c+lQtj8pSMtUOMy+/RfxrZFjXGS7nFwz3 Ea8wdh6MqebEmUMqRIX0pFbIr1vxXIyTdEq6fEBGk8pS5aGMUej1IOxH3mvGTTx8Zb1A p4WtB/fC8HBNV/xxJOVx1rFQqfZwVyB2qQ4QMQgl9eptDSGyK38HXczvAjdOimktb6W5 8rYZQrU03+6DIo9Weao9ASYgqF1QhkVgUfmExWAQVTk5LYoCXz0MemHnQpiOtJnXUQLZ yZeg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=38q4P9PH9nES8RczvE7OnqqkPXztayfrVWMcaUM8s+A=; b=nHxy9Jm3/JLzH3T0OpSQeVxg3ExfOLvOm7Ah4cRJKYsAS+V3fko3V63duzozPp1obD 1WfHVJDOLJrPvXV5Wd4y6tyNpcExnEdBgacOLnpfpDDDWHhjKkhGewJvwsk44IzITGqU +CiXGghBdntTtIxYzOQn0DjrtQCzI/+nh0+TeFnbWBQCz6vOnrdM0jTd8mH/hTzei1R6 43uksjpQ5NBxA1avch34EeQBkPtbdhpZK6teWCBy18KXYIzsSxNKMa3B27sQLORyHW1p hN2FZtFKmuXRQPJ/xQdW/O00ssr/1dwNBV1MG04wqsd6A/WW4V1XawZpOb5kwV3LoOkh YhVg== X-Gm-Message-State: AOAM532xlhykuGGUyaSAcv9VsaUZow8HGbTM16soZwcgxLVDrTf/A1KR 0hTbv1fYmrpweRaEQjDwg9s= X-Google-Smtp-Source: ABdhPJwx3H1Lxh28u4hkNoEI/kzbRKfVLKfuDBCQcQ68ILBqPiTWY9aJ1dkoCljIJtKgelCY8ITq2Q== X-Received: by 2002:a05:6512:23a2:: with SMTP id c34mr13488689lfv.623.1643585852671; Sun, 30 Jan 2022 15:37:32 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:32 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 04/21] kernel: Add combined power-off+restart handler call chain API Date: Mon, 31 Jan 2022 02:37:01 +0300 Message-Id: <20220130233718.21544-5-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org SoC platforms often have multiple ways of how to perform system's power-off and restart operations. Meanwhile today's kernel is limited to a single option. Add combined power-off+restart handler call chain API, which is inspired by the restart API. The new API provides both power-off and restart functionality. The old pm_power_off method will be kept around till all users are converted to the new API. Current restart API will be replaced by the new unified API since new API is its superset. The restart functionality of the sys-off handler API is built upon the existing restart-notifier APIs. In order to ease conversion to the new API, convenient helpers are added for the common use-cases. They will reduce amount of boilerplate code and remove global variables. These helpers preserve old behaviour for cases where only one power-off handler is expected, this is what all existing drivers want, and thus, they could be easily converted to the new API. Users of the new API should explicitly enable power-off chaining by setting corresponding flag of the power_handler structure. Signed-off-by: Dmitry Osipenko --- include/linux/reboot.h | 265 ++++++++++++++++++- kernel/power/hibernate.c | 2 +- kernel/reboot.c | 555 ++++++++++++++++++++++++++++++++++++++- 3 files changed, 814 insertions(+), 8 deletions(-) diff --git a/include/linux/reboot.h b/include/linux/reboot.h index af907a3d68d1..c2fa8d63c129 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -8,10 +8,35 @@ struct device; -#define SYS_DOWN 0x0001 /* Notify of system down */ -#define SYS_RESTART SYS_DOWN -#define SYS_HALT 0x0002 /* Notify of system halt */ -#define SYS_POWER_OFF 0x0003 /* Notify of system power off */ +enum reboot_prepare_mode { + SYS_DOWN = 1, /* Notify of system down */ + SYS_RESTART = SYS_DOWN, + SYS_HALT, /* Notify of system halt */ + SYS_POWER_OFF, /* Notify of system power off */ +}; + +/* + * Standard restart priority levels. Intended to be set in the + * sys_off_handler.restart_priority field. + * + * Use `RESTART_PRIO_ABC +- prio` style for additional levels. + * + * RESTART_PRIO_RESERVED: Falls back to RESTART_PRIO_DEFAULT. + * Drivers may leave priority initialized + * to zero, to auto-set it to the default level. + * + * RESTART_PRIO_LOW: Use this for handler of last resort. + * + * RESTART_PRIO_DEFAULT: Use this for default/generic handler. + * + * RESTART_PRIO_HIGH: Use this if you have multiple handlers and + * this handler has higher priority than the + * default handler. + */ +#define RESTART_PRIO_RESERVED 0 +#define RESTART_PRIO_LOW 8 +#define RESTART_PRIO_DEFAULT 128 +#define RESTART_PRIO_HIGH 192 enum reboot_mode { REBOOT_UNDEFINED = -1, @@ -49,6 +74,237 @@ extern int register_restart_handler(struct notifier_block *); extern int unregister_restart_handler(struct notifier_block *); extern void do_kernel_restart(char *cmd); +/* + * System power-off and restart API. + */ + +/* + * Standard power-off priority levels. Intended to be set in the + * sys_off_handler.power_off_priority field. + * + * Use `POWEROFF_PRIO_ABC +- prio` style for additional levels. + * + * POWEROFF_PRIO_RESERVED: Falls back to POWEROFF_PRIO_DEFAULT. + * Drivers may leave priority initialized + * to zero, to auto-set it to the default level. + * + * POWEROFF_PRIO_PLATFORM: Intended to be used by platform-level handler. + * Has lowest priority since device drivers are + * expected to take over platform handler which + * doesn't allow further callback chaining. + * + * POWEROFF_PRIO_DEFAULT: Use this for default/generic handler. + * + * POWEROFF_PRIO_FIRMWARE: Use this if handler uses firmware call. + * Has highest priority since firmware is expected + * to know best how to power-off hardware properly. + */ +#define POWEROFF_PRIO_RESERVED 0 +#define POWEROFF_PRIO_PLATFORM 1 +#define POWEROFF_PRIO_DEFAULT 128 +#define POWEROFF_PRIO_HIGH 192 +#define POWEROFF_PRIO_FIRMWARE 224 + +enum poweroff_mode { + POWEROFF_NORMAL = 0, + POWEROFF_PREPARE, +}; + +/** + * struct power_off_data - Power-off callback argument + * + * @cb_data: Callback data. + */ +struct power_off_data { + void *cb_data; +}; + +/** + * struct power_off_prep_data - Power-off preparation callback argument + * + * @cb_data: Callback data. + */ +struct power_off_prep_data { + void *cb_data; +}; + +/** + * struct restart_data - Restart callback argument + * + * @cb_data: Callback data. + * @cmd: Restart command string. + * @stop_chain: Further lower priority callbacks won't be executed if set to + * true. Can be changed within callback. Default is false. + * @mode: Reboot mode ID. + */ +struct restart_data { + void *cb_data; + const char *cmd; + bool stop_chain; + enum reboot_mode mode; +}; + +/** + * struct reboot_prep_data - Reboot and shutdown preparation callback argument + * + * @cb_data: Callback data. + * @cmd: Restart command string. + * @stop_chain: Further lower priority callbacks won't be executed if set to + * true. Can be changed within callback. Default is false. + * @mode: Preparation mode ID. + */ +struct reboot_prep_data { + void *cb_data; + const char *cmd; + bool stop_chain; + enum reboot_prepare_mode mode; +}; + +struct sys_off_handler_private_data { + struct notifier_block power_off_nb; + struct notifier_block restart_nb; + struct notifier_block reboot_nb; + void (*platform_power_off_cb)(void); + void (*simple_power_off_cb)(void *data); + void *simple_power_off_cb_data; + bool registered; +}; + +/** + * struct sys_off_handler - System power-off and restart handler + * + * @cb_data: Pointer to user's data. + * + * @power_off_cb: Callback that powers off this machine. Inactive if NULL. + * + * @power_off_prepare_cb: Power-off preparation callback. All power-off + * preparation callbacks are invoked after @reboot_prepare_cb and before + * @power_off_cb. Inactive if NULL. + * + * @power_off_priority: Power-off callback priority, must be unique. + * Zero value is reserved and auto-reassigned to POWEROFF_PRIO_DEFAULT. + * Inactive if @power_off_cb is NULL. + * + * @power_off_chaining_allowed: Set to false if callback's execution should + * stop when @power_off_cb fails to power off this machine. True if further + * lower priority power-off callback should be executed. False is default + * value. + * + * @restart_cb: Callback that reboots this machine. Inactive if NULL. + * + * @restart_priority: Restart callback priority, must be unique. Zero value + * is reserved and auto-reassigned to RESTART_PRIO_DEFAULT. Inactive if + * @restart_cb is NULL. + * + * @restart_chaining_disallowed: Set to true if callback's execution should + * stop when @restart_cb fails to restart this machine. False if further + * lower priority restart callback should be executed. False is default + * value. + * + * @reboot_prepare_cb: Reboot/shutdown preparation callback. All reboot + * preparation callbacks are invoked before @restart_cb or @power_off_cb, + * depending on the mode. It's registered with register_reboot_notifier(). + * The point is to remove boilerplate code from drivers which use this + * callback in conjunction with the restart/power-off callbacks. + * + * @reboot_priority: Reboot/shutdown preparation callback priority, doesn't + * need to be unique. Zero is default value. Inactive if @reboot_prepare_cb + * is NULL. + * + * @priv: Internal data. Shouldn't be touched. + * + * Describes power-off and restart handlers which are invoked by kernel + * to power off or restart this machine. Supports prioritized chaining for + * both restart and power-off handlers. + * + * Struct sys_off_handler can be static. Members of this structure must not be + * altered while handler is registered. + * + * Fill the structure members and pass it to @register_sys_off_handler(). + */ +struct sys_off_handler { + void *cb_data; + + void (*power_off_cb)(struct power_off_data *data); + void (*power_off_prepare_cb)(struct power_off_prep_data *data); + int power_off_priority; + bool power_off_chaining_allowed; + + void (*restart_cb)(struct restart_data *data); + int restart_priority; + bool restart_chaining_disallowed; + + void (*reboot_prepare_cb)(struct reboot_prep_data *data); + int reboot_priority; + + const struct sys_off_handler_private_data priv; +}; + +int register_sys_off_handler(struct sys_off_handler *handler); +int unregister_sys_off_handler(struct sys_off_handler *handler); + +int devm_register_sys_off_handler(struct device *dev, + struct sys_off_handler *handler); + +int devm_register_prioritized_power_off_handler(struct device *dev, + int priority, + void (*callback)(void *data), + void *cb_data); + +/** + * devm_register_simple_power_off_handler - Register simple power-off callback + * @dev: Device that registers callback + * @callback: Callback function + * @cb_data: Callback's argument + * + * Registers resource-managed power-off callback with default priority. + * It will be invoked as last step of the power-off sequence. Further + * lower priority callbacks won't be executed if this @callback fails. + * + * Returns zero on success, or error code on failure. + */ +static inline int +devm_register_simple_power_off_handler(struct device *dev, + void (*callback)(void *data), + void *cb_data) +{ + return devm_register_prioritized_power_off_handler(dev, + POWEROFF_PRIO_DEFAULT, + callback, cb_data); +} + +int register_platform_power_off(void (*power_off)(void)); +int unregister_platform_power_off(void (*power_off)(void)); + +int devm_register_prioritized_restart_handler(struct device *dev, + int priority, + void (*callback)(struct restart_data *data), + void *cb_data); + +/** + * devm_register_simple_restart_handler - Register simple restart callback + * @dev: Device that registers callback + * @callback: Callback function + * @cb_data: Callback's argument + * + * Registers resource-managed restart callback with default priority. + * It will be invoked as a part of the restart sequence. Further + * lower priority callback will be executed if this @callback fails. + * + * Returns zero on success, or error code on failure. + */ +static inline int +devm_register_simple_restart_handler(struct device *dev, + void (*callback)(struct restart_data *data), + void *cb_data) +{ + return devm_register_prioritized_restart_handler(dev, + RESTART_PRIO_DEFAULT, + callback, cb_data); +} + +void do_kernel_power_off(void); + /* * Architecture-specific implementations of sys_reboot commands. */ @@ -70,6 +326,7 @@ extern void kernel_restart_prepare(char *cmd); extern void kernel_restart(char *cmd); extern void kernel_halt(void); extern void kernel_power_off(void); +extern bool kernel_can_power_off(void); extern int C_A_D; /* for sysctl */ void ctrl_alt_del(void); diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index a94044197c4a..aace22f7a031 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -665,7 +665,7 @@ static void power_down(void) hibernation_platform_enter(); fallthrough; case HIBERNATION_SHUTDOWN: - if (pm_power_off) + if (kernel_can_power_off()) kernel_power_off(); break; } diff --git a/kernel/reboot.c b/kernel/reboot.c index 35f0cde641c1..1ae5ba86b150 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -296,6 +296,546 @@ void kernel_halt(void) } EXPORT_SYMBOL_GPL(kernel_halt); +/* + * Notifier list for kernel code which wants to be called + * to power off the system. + */ +static BLOCKING_NOTIFIER_HEAD(power_off_handler_list); + +/* + * Temporary stub that prevents linkage failure while we're in process + * of removing all uses of legacy pm_power_off() around the kernel. + */ +void __weak (*pm_power_off)(void); + +static void dummy_pm_power_off(void) +{ + /* temporary stub until pm_power_off() is gone, see more below */ +} + +static struct notifier_block *pm_power_off_nb; + +/** + * register_power_off_handler - Register function to be called to power off + * the system + * @nb: Info about handler function to be called + * @nb->priority: Handler priority. Handlers should follow the + * following guidelines for setting priorities. + * 0: Reserved + * 1: Power-off handler of last resort, + * with limited power-off capabilities + * 128: Default power-off handler; use if no other + * power-off handler is expected to be available, + * and/or if power-off functionality is + * sufficient to power-off the entire system + * 255: Highest priority power-off handler, will + * preempt all other power-off handlers + * + * Registers a function with code to be called to power off the + * system. + * + * Registered functions will be called as last step of the power-off + * sequence. + * + * Registered functions are expected to power off the system immediately. + * If more than one function is registered, the power-off handler priority + * selects which function will be called first. + * + * Power-off handlers are expected to be registered from non-architecture + * code, typically from drivers. A typical use case would be a system + * where power-off functionality is provided through a PMIC. Multiple + * power-off handlers may exist; for example, one power-off handler might + * turn off the entire system, while another only turns off part of + * system. In such cases, the power-off handler which only disables part + * of the hardware is expected to register with low priority to ensure + * that it only runs if no other means to power off the system is + * available. + * + * Currently always returns zero, as blocking_notifier_chain_register() + * always returns zero. + */ +static int register_power_off_handler(struct notifier_block *nb) +{ + int ret; + + ret = blocking_notifier_chain_register_unique_prio(&power_off_handler_list, nb); + if (ret && ret != -EBUSY) + return ret; + + if (!ret) + goto set_pm_power_off; + + /* + * Handler must have unique priority. Otherwise call order is + * determined by registration order, which is unreliable. + * + * This requirement will become mandatory once all drivers + * will be converted to use new sys-off API. + */ + pr_err("failed to register power-off handler using unique priority\n"); + + ret = blocking_notifier_chain_register(&power_off_handler_list, nb); + if (ret) + return ret; + + /* + * Some drivers check whether pm_power_off was already installed. + * Install dummy callback using new API to preserve old behaviour + * for those drivers during period of transition to the new API. + */ +set_pm_power_off: + if (!pm_power_off) { + pm_power_off = dummy_pm_power_off; + pm_power_off_nb = nb; + } + + return 0; +} + +static int unregister_power_off_handler(struct notifier_block *nb) +{ + if (nb == pm_power_off_nb) { + if (pm_power_off == dummy_pm_power_off) + pm_power_off = NULL; + + pm_power_off_nb = NULL; + } + + return blocking_notifier_chain_unregister(&power_off_handler_list, nb); +} + +static void devm_unregister_power_off_handler(void *data) +{ + struct notifier_block *nb = data; + + unregister_power_off_handler(nb); +} + +static int devm_register_power_off_handler(struct device *dev, + struct notifier_block *nb) +{ + int err; + + err = register_power_off_handler(nb); + if (err) + return err; + + return devm_add_action_or_reset(dev, devm_unregister_power_off_handler, + nb); +} + +static int sys_off_handler_power_off(struct notifier_block *nb, + unsigned long mode, void *unused) +{ + struct power_off_prep_data prep_data = {}; + struct sys_off_handler_private_data *priv; + struct power_off_data data = {}; + struct sys_off_handler *h; + int ret = NOTIFY_DONE; + + priv = container_of(nb, struct sys_off_handler_private_data, power_off_nb); + h = container_of(priv, struct sys_off_handler, priv); + prep_data.cb_data = h->cb_data; + data.cb_data = h->cb_data; + + switch (mode) { + case POWEROFF_NORMAL: + if (h->power_off_cb) + h->power_off_cb(&data); + + if (priv->simple_power_off_cb) + priv->simple_power_off_cb(priv->simple_power_off_cb_data); + + if (priv->platform_power_off_cb) + priv->platform_power_off_cb(); + + if (!h->power_off_chaining_allowed) + ret = NOTIFY_STOP; + + break; + + case POWEROFF_PREPARE: + if (h->power_off_prepare_cb) + h->power_off_prepare_cb(&prep_data); + + break; + + default: + unreachable(); + } + + return ret; +} + +static int sys_off_handler_restart(struct notifier_block *nb, + unsigned long mode, void *cmd) +{ + struct sys_off_handler_private_data *priv; + struct restart_data data = {}; + struct sys_off_handler *h; + + priv = container_of(nb, struct sys_off_handler_private_data, restart_nb); + h = container_of(priv, struct sys_off_handler, priv); + + data.stop_chain = h->restart_chaining_disallowed; + data.cb_data = h->cb_data; + data.mode = mode; + data.cmd = cmd; + + h->restart_cb(&data); + + return data.stop_chain ? NOTIFY_STOP : NOTIFY_DONE; +} + +static int sys_off_handler_reboot(struct notifier_block *nb, + unsigned long mode, void *cmd) +{ + struct sys_off_handler_private_data *priv; + struct reboot_prep_data data = {}; + struct sys_off_handler *h; + + priv = container_of(nb, struct sys_off_handler_private_data, reboot_nb); + h = container_of(priv, struct sys_off_handler, priv); + + data.cb_data = h->cb_data; + data.stop_chain = false; + data.mode = mode; + data.cmd = cmd; + + h->reboot_prepare_cb(&data); + + return data.stop_chain ? NOTIFY_STOP : NOTIFY_DONE; +} + +static struct sys_off_handler_private_data * +sys_off_handler_private_data(struct sys_off_handler *handler) +{ + return (struct sys_off_handler_private_data *)&handler->priv; +} + +/** + * devm_register_sys_off_handler - Register system power-off/restart handler + * @dev: Device that registers handler + * @handler: System-off handler + * + * Registers handler that will be called as last step of the power-off + * and restart sequences. + * + * Returns zero on success, or error code on failure. + */ +int register_sys_off_handler(struct sys_off_handler *handler) +{ + struct sys_off_handler_private_data *priv; + int err, priority; + + priv = sys_off_handler_private_data(handler); + + /* sanity-check whether handler is registered twice */ + if (priv->registered) + return -EBUSY; + + if (handler->power_off_cb || handler->power_off_prepare_cb) { + if (handler->power_off_priority == POWEROFF_PRIO_RESERVED) + priority = POWEROFF_PRIO_DEFAULT; + else + priority = handler->power_off_priority; + + priv->power_off_nb.notifier_call = sys_off_handler_power_off; + priv->power_off_nb.priority = priority; + + err = register_power_off_handler(&priv->power_off_nb); + if (err) + goto reset_sys_off_handler; + } + + if (handler->restart_cb) { + if (handler->restart_priority == RESTART_PRIO_RESERVED) + priority = RESTART_PRIO_DEFAULT; + else + priority = handler->restart_priority; + + priv->restart_nb.notifier_call = sys_off_handler_restart; + priv->restart_nb.priority = priority; + + err = register_restart_handler(&priv->restart_nb); + if (err) + goto unreg_power_off_handler; + } + + if (handler->reboot_prepare_cb) { + priv->reboot_nb.notifier_call = sys_off_handler_reboot; + priv->reboot_nb.priority = handler->reboot_priority; + + err = register_reboot_notifier(&priv->reboot_nb); + if (err) + goto unreg_restart_handler; + } + + priv->registered = true; + + return 0; + +unreg_restart_handler: + if (handler->restart_cb) + unregister_restart_handler(&priv->restart_nb); + +unreg_power_off_handler: + if (handler->power_off_cb) + unregister_power_off_handler(&priv->power_off_nb); + +reset_sys_off_handler: + memset(priv, 0, sizeof(*priv)); + + return err; +} +EXPORT_SYMBOL(register_sys_off_handler); + +/** + * unregister_sys_off_handler - Unregister system power-off/restart handler + * @handler: System-off handler + * + * Unregisters sys-off handler. Does nothing and returns zero if handler + * is NULL. + * + * Returns zero on success, or error code on failure. + */ +int unregister_sys_off_handler(struct sys_off_handler *handler) +{ + struct sys_off_handler_private_data *priv; + + if (!handler) + return 0; + + priv = sys_off_handler_private_data(handler); + + /* sanity-check whether handler is unregistered twice */ + if (!priv->registered) + return -EINVAL; + + if (handler->reboot_prepare_cb) + unregister_reboot_notifier(&priv->reboot_nb); + + if (handler->restart_cb) + unregister_restart_handler(&priv->restart_nb); + + if (handler->power_off_cb) + unregister_power_off_handler(&priv->power_off_nb); + + memset(priv, 0, sizeof(*priv)); + + return 0; +} +EXPORT_SYMBOL(unregister_sys_off_handler); + +static void devm_unregister_sys_off_handler(void *data) +{ + struct sys_off_handler *handler = data; + + unregister_sys_off_handler(handler); +} + +/** + * devm_register_sys_off_handler - Register system power-off/restart handler + * @dev: Device that registers handler + * @handler: System-off handler + * + * Resource-managed variant of register_sys_off_handler(). + * + * Returns zero on success, or error code on failure. + */ +int devm_register_sys_off_handler(struct device *dev, + struct sys_off_handler *handler) +{ + int err; + + err = register_sys_off_handler(handler); + if (err) + return err; + + return devm_add_action_or_reset(dev, devm_unregister_sys_off_handler, + handler); +} +EXPORT_SYMBOL(devm_register_sys_off_handler); + +/** + * devm_register_prioritized_power_off_handler - Register prioritized power-off callback + * @dev: Device that registers callback + * @priority: Callback's priority + * @callback: Callback function + * @cb_data: Callback's argument + * + * Registers resource-managed power-off callback with a given priority. + * It will be called as last step of the power-off sequence. Callbacks + * chaining is disabled, i.e. further lower priority callbacks won't + * be executed if this @callback will fail to execute. + * + * Returns zero on success, or error code on failure. + */ +int devm_register_prioritized_power_off_handler(struct device *dev, + int priority, + void (*callback)(void *data), + void *cb_data) +{ + struct sys_off_handler_private_data *priv; + struct sys_off_handler *handler; + + handler = devm_kzalloc(dev, sizeof(*handler), GFP_KERNEL); + if (!handler) + return -ENOMEM; + + if (priority == POWEROFF_PRIO_RESERVED) + priority = POWEROFF_PRIO_DEFAULT; + + priv = sys_off_handler_private_data(handler); + + priv->power_off_nb.notifier_call = sys_off_handler_power_off; + priv->power_off_nb.priority = priority; + priv->simple_power_off_cb_data = cb_data; + priv->simple_power_off_cb = callback; + + return devm_register_power_off_handler(dev, &priv->power_off_nb); +} +EXPORT_SYMBOL(devm_register_prioritized_power_off_handler); + +/** + * devm_register_prioritized_restart_handler - Register prioritized restart callback + * @dev: Device that registers callback + * @priority: Callback's priority + * @callback: Callback function + * @cb_data: Callback's argument + * + * Registers resource-managed restart callback with a given priority. + * It will be called as a part of the restart sequence. Callbacks + * chaining is disabled, i.e. further lower priority callbacks won't + * be executed if this @callback will fail to execute. + * + * Returns zero on success, or error code on failure. + */ +int devm_register_prioritized_restart_handler(struct device *dev, + int priority, + void (*callback)(struct restart_data *data), + void *cb_data) +{ + struct sys_off_handler *handler; + + handler = devm_kzalloc(dev, sizeof(*handler), GFP_KERNEL); + if (!handler) + return -ENOMEM; + + if (priority == RESTART_PRIO_RESERVED) + priority = RESTART_PRIO_DEFAULT; + + handler->restart_priority = priority; + handler->restart_cb = callback; + handler->cb_data = cb_data; + + return devm_register_sys_off_handler(dev, handler); +} +EXPORT_SYMBOL(devm_register_prioritized_restart_handler); + +static struct sys_off_handler platform_power_off_handler = { + .priv = { + .power_off_nb = { + .notifier_call = sys_off_handler_power_off, + .priority = POWEROFF_PRIO_PLATFORM, + }, + }, +}; + +static DEFINE_SPINLOCK(platform_power_off_lock); + +/** + * register_platform_power_off - Register platform-level power-off callback + * @power_off: Power-off callback + * + * Registers power-off callback that will be called as last step + * of the power-off sequence. This callback is expected to be invoked + * for the last resort. Further lower priority callbacks won't be + * executed if @power_off fails. Only one platform power-off callback + * is allowed to be registered at a time. + * + * Returns zero on success, or error code on failure. + */ +int register_platform_power_off(void (*power_off)(void)) +{ + struct sys_off_handler_private_data *priv; + int ret = 0; + + priv = sys_off_handler_private_data(&platform_power_off_handler); + + spin_lock(&platform_power_off_lock); + if (priv->platform_power_off_cb) + ret = -EBUSY; + else + priv->platform_power_off_cb = power_off; + spin_unlock(&platform_power_off_lock); + + if (ret) + return ret; + + ret = register_power_off_handler(&priv->power_off_nb); + if (ret) + priv->platform_power_off_cb = NULL; + + return ret; +} +EXPORT_SYMBOL_GPL(register_platform_power_off); + +/** + * unregister_platform_power_off - Unregister platform-level power-off callback + * @power_off: Power-off callback + * + * Unregisters previously registered platform power-off callback. + * + * Returns zero on success, or error code on failure. + */ +int unregister_platform_power_off(void (*power_off)(void)) +{ + struct sys_off_handler_private_data *priv; + int ret; + + priv = sys_off_handler_private_data(&platform_power_off_handler); + + if (priv->platform_power_off_cb != power_off) + return -EINVAL; + + ret = unregister_power_off_handler(&priv->power_off_nb); + priv->platform_power_off_cb = NULL; + + return ret; +} +EXPORT_SYMBOL_GPL(unregister_platform_power_off); + +/** + * do_kernel_power_off - Execute kernel power-off handler call chain + * + * Calls functions registered with register_power_off_handler. + * + * Expected to be called as last step of the power-off sequence. + * + * Powers off the system immediately if a power-off handler function has + * been registered. Otherwise does nothing. + */ +void do_kernel_power_off(void) +{ + /* legacy pm_power_off() is unchained and has highest priority */ + if (pm_power_off && pm_power_off != dummy_pm_power_off) + return pm_power_off(); + + blocking_notifier_call_chain(&power_off_handler_list, POWEROFF_NORMAL, + NULL); +} + +static void do_kernel_power_off_prepare(void) +{ + /* legacy pm_power_off_prepare() is unchained and has highest priority */ + if (pm_power_off_prepare) + return pm_power_off_prepare(); + + blocking_notifier_call_chain(&power_off_handler_list, POWEROFF_PREPARE, + NULL); +} + /** * kernel_power_off - power_off the system * @@ -304,8 +844,7 @@ EXPORT_SYMBOL_GPL(kernel_halt); void kernel_power_off(void) { kernel_shutdown_prepare(SYSTEM_POWER_OFF); - if (pm_power_off_prepare) - pm_power_off_prepare(); + do_kernel_power_off_prepare(); migrate_to_reboot_cpu(); syscore_shutdown(); pr_emerg("Power down\n"); @@ -314,6 +853,16 @@ void kernel_power_off(void) } EXPORT_SYMBOL_GPL(kernel_power_off); +bool kernel_can_power_off(void) +{ + if (!pm_power_off && + blocking_notifier_call_chain_is_empty(&power_off_handler_list)) + return false; + + return true; +} +EXPORT_SYMBOL_GPL(kernel_can_power_off); + DEFINE_MUTEX(system_transition_mutex); /* @@ -355,7 +904,7 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd, /* Instead of trying to make the power_off code look like * halt when pm_power_off is not set do it the easy way. */ - if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off) + if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !kernel_can_power_off()) cmd = LINUX_REBOOT_CMD_HALT; mutex_lock(&system_transition_mutex); From patchwork Sun Jan 30 23:37:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539213 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 41C5EC3525C for ; Sun, 30 Jan 2022 23:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357054AbiA3Xhl (ORCPT ); Sun, 30 Jan 2022 18:37:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356984AbiA3Xhh (ORCPT ); Sun, 30 Jan 2022 18:37:37 -0500 Received: from mail-lj1-x22d.google.com (mail-lj1-x22d.google.com [IPv6:2a00:1450:4864:20::22d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1EA99C061748; Sun, 30 Jan 2022 15:37:36 -0800 (PST) Received: by mail-lj1-x22d.google.com with SMTP id c7so16583464ljr.13; Sun, 30 Jan 2022 15:37:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=330E/wQDWGl4ulxyuRNdR1rr3T8TzXfUiE06Vh/nJ/4=; b=cg3oMBxQjVviL/NNGojcXm2zIQdA1knh2bjCFHcWisBrm24Ky2GZxKJ3rws8Te7/gs gKmhuSiy3i3YAnHFoGCZNUdNK8mgFrgHD+dxBwbG4yZhgFFN7+/vK4MkGE5qXYuXmMVs bUYXaFsNJIzGbHLL09HMWCh53ba9YsZpoLFHMsubj4f9OdgATDVSFw5EXTDeZNrJ+YwD 4i3hO0RlUhqkX+D7hyG57IC2hHmNZLq5o5iowEWUxtxxuAtbxm76BsZH9fLeaXdkEFeP spgNrmHN/fUhCBM448V1raIkNHUkI0ImPa7nT8ODh8UXU57uCGiJ333W57c8FPVtKEon c6Zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=330E/wQDWGl4ulxyuRNdR1rr3T8TzXfUiE06Vh/nJ/4=; b=JMUMvDohvHbyObBQAVj7ATLCNlMh0Tl9a/PrJtt0EO4kdHI9MKWfJILCNyOMtKWCJf 2vpqvAfxuJXA/LX5cs2E1JqTCZFzPbElbnzoUPK4YUx6eZYpfILasOPMxSSSLFPA2o4A S2lEeekNWwCTuOzlXBJzG32IRg0NsHhWsoBvrZKDM1BELU1Z0SC5oxGSlhnrwgsuffnx qvhzeRUQA6O73Ah046HCl7wMwMmaEgovxDGENBPB1CMb7N8uTE6vkCOB3qkZC67p8uln mrE5t89N4lsw/23u3Hr+IM7WLqrJ1+JOxZHQYTB1C7VOVMHhF/3bPeYHD2eyywV4M1aE J1yA== X-Gm-Message-State: AOAM531zLMMuxe4iyky0cInZGoP0+eZx3A+7QlAeP/OfE9qIABPsMhpw eI6yAodshai4QZTzM2CvTvk= X-Google-Smtp-Source: ABdhPJz+BlMXTarUclVIq8qzXV3P6s1WQdhrNGC7YQJ1I4ADKuUOv1DDvqkqis31Xyrq/C6PgvOyzw== X-Received: by 2002:a2e:9cc4:: with SMTP id g4mr12328016ljj.264.1643585854485; Sun, 30 Jan 2022 15:37:34 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:34 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 05/21] ARM: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:02 +0300 Message-Id: <20220130233718.21544-6-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Reviewed-by: Russell King (Oracle) Signed-off-by: Dmitry Osipenko --- arch/arm/kernel/reboot.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c index 3044fcb8d073..2cb943422554 100644 --- a/arch/arm/kernel/reboot.c +++ b/arch/arm/kernel/reboot.c @@ -116,9 +116,7 @@ void machine_power_off(void) { local_irq_disable(); smp_send_stop(); - - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); } /* From patchwork Sun Jan 30 23:37:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538378 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 CD5A6C4332F for ; Sun, 30 Jan 2022 23:37:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357145AbiA3Xhn (ORCPT ); Sun, 30 Jan 2022 18:37:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356989AbiA3Xhi (ORCPT ); Sun, 30 Jan 2022 18:37:38 -0500 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4162C06173B; Sun, 30 Jan 2022 15:37:37 -0800 (PST) Received: by mail-lf1-x135.google.com with SMTP id u6so23256707lfm.10; Sun, 30 Jan 2022 15:37:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1ZrDgi56okXdj0bmuwFyDd+PCBPMTNLxDRZAmCQiy7Q=; b=c3NtOsqbA47a1sJX+GEy+0rTmzy10+oHXKnLf++rqhzO+HkV5EX5GbmXX0syutXx6R 46cFfpCzhcPa31L6Xgo37w0ud+s6MmIVbyT0zR8tDah7CqXCEteg4iWk/eRCwba6mO4V 8W4zc+2KzJhcjNF1j1wVUUcXHT6ObiOakX5p2KYvUVsZQRY7Y82Y6MKvBpcRryxOInUF RxKVqw9v4fGeVOkmtCX3EyiW/0qXGxVzl0X9GRONS3eJ/CiP8qRj0ZyFLbrruPRrmWMZ iKAyqg4ppe9pVvVxKhsjy91ldTFtuqlW7PzcwXhnonKoFQRzsPVvvJpThza+ddSLXVij QBag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=1ZrDgi56okXdj0bmuwFyDd+PCBPMTNLxDRZAmCQiy7Q=; b=38FzZxpLqBxna6ZJBs4RH92j5a+sk6oECmhg4dsNk6Y8NdAAIOzIeq9NdJYVIhJOB/ HbsWVNjobM7huSELe4VZctTQv3HtMj70daJSzLfPT5EBuzc0QTOjNOgkCXNa3Jf87yIT u0hBvB2KfyitlofTKEpan+k7YU6zJgjQ018xqrW4JmY+GykhsIXnh2XstwqTRRX0H5Ye U+QEGYN/2yU9rdd9uMC4r+Nbs3Y2ZKL1rkJ9pXkFgdwjrDg96O/NfuatMYNFXpqXLjOa hUcQvfVmIJrK3PB0rWOTbZROE8GZfcyE5m4L1a02X60ZGLFmh5VyspR4TCl9BI0+Z+O8 LyKA== X-Gm-Message-State: AOAM533Zi2J+r3ulB5BXoOAcUG+JRAvQ6sD5iH3ZhVXzem3apod6i8Io 7m0vem/EXTGox2Zzg9RcQ/4= X-Google-Smtp-Source: ABdhPJwjH2OF/Lh8B3AhmAwBhRKlkrWOfnqlna+Zr9L+uqZhDMGJf1wpdqmmSlpmTjq1hjKH+//r2w== X-Received: by 2002:a05:6512:1082:: with SMTP id j2mr7550090lfg.371.1643585856261; Sun, 30 Jan 2022 15:37:36 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:35 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 06/21] csky: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:03 +0300 Message-Id: <20220130233718.21544-7-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Guo Ren Signed-off-by: Dmitry Osipenko --- arch/csky/kernel/power.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/csky/kernel/power.c b/arch/csky/kernel/power.c index 923ee4e381b8..86ee202906f8 100644 --- a/arch/csky/kernel/power.c +++ b/arch/csky/kernel/power.c @@ -9,16 +9,14 @@ EXPORT_SYMBOL(pm_power_off); void machine_power_off(void) { local_irq_disable(); - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); asm volatile ("bkpt"); } void machine_halt(void) { local_irq_disable(); - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); asm volatile ("bkpt"); } From patchwork Sun Jan 30 23:37:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539212 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 9F210C41535 for ; Sun, 30 Jan 2022 23:37:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357154AbiA3Xhn (ORCPT ); Sun, 30 Jan 2022 18:37:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357023AbiA3Xhk (ORCPT ); Sun, 30 Jan 2022 18:37:40 -0500 Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7315C06173D; Sun, 30 Jan 2022 15:37:39 -0800 (PST) Received: by mail-lj1-x236.google.com with SMTP id bx31so5419009ljb.0; Sun, 30 Jan 2022 15:37:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OVg2kfJsVdscnSQmsGQYEfiSB/7tSvJBE6eAcPu7Sek=; b=c4Z1zQFdWlsKxw9UxAzj2ZQzBVH0IlXZ5Q9hlT/o2eauoc+12KgHtyZnfnu9QRCul7 XIq2yfEDvsyi714qK62uqrcXiKbZ83JQlipU755myvbplyaKCzIx8SoEbYZQx1g2QPK1 ZiW0YJxW7z6xKBh2ESJStcRTergJa9YSSKnZXGs2GFxaXBnqnCcNoIMPWorMJ7h8whhy F2xnNh9XSw25BmP4Yp0yjpYr8c279tQye0/GiTHl+WGgBlBd/yKdunLMFcBd5VjP++Bl z5q6iip6mJ3MI/RtrvT6/DwKfRUy9WgbSLddepD6tmbzL6Xf24XNQo71hEy43Zt7gMYI LH7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OVg2kfJsVdscnSQmsGQYEfiSB/7tSvJBE6eAcPu7Sek=; b=6ThZdcJSqnLPGrg9Q7caxkty6iYvzD/Bpx38KWdAj/AbGbxfNROWPhCF5LyTYOWU44 zocWv42wfkxq+PqtFXK8Z0NlIeDhjsemSh+/hyrZPp9YtIu8T+QzsOVvAAQOZo1D9k+G MUL8gjdiZDjs0+7Yhnw0H+6OMpsxKYk2NffoOp0fkiSRS6FPKFHMWWBwimgWMAf+ssxs joUnaV9RM6sSQ0GR5baudrYbx62Y3Tjv2Uu5uzFQdmCt48ko9H0FKvOqi9kDVN8rDmUb Esfx4hoW80VyBD39rDcCcL+rJs123lu0235vplVXlvusU56S47AwRMxNy+rA/7jwKdZe 6YiA== X-Gm-Message-State: AOAM533+pz1tuA4ha8TukLFMeAnsWKNz1+kOp7FSDYpU2xRfubyerTRy KC8Irs9ziF26oH/+ADx8ItA= X-Google-Smtp-Source: ABdhPJw0o4UVP5/vUUv/1Chd11yJ2CJCMOQv44y6t1B7x180Ayz+XFBoJsJgXLguCKSrO7B2enZNZA== X-Received: by 2002:a2e:90c7:: with SMTP id o7mr12381352ljg.340.1643585858043; Sun, 30 Jan 2022 15:37:38 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:37 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 07/21] riscv: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:04 +0300 Message-Id: <20220130233718.21544-8-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Palmer Dabbelt Signed-off-by: Dmitry Osipenko --- arch/riscv/kernel/reset.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/arch/riscv/kernel/reset.c b/arch/riscv/kernel/reset.c index 9c842c41684a..912288572226 100644 --- a/arch/riscv/kernel/reset.c +++ b/arch/riscv/kernel/reset.c @@ -23,16 +23,12 @@ void machine_restart(char *cmd) void machine_halt(void) { - if (pm_power_off != NULL) - pm_power_off(); - else - default_power_off(); + do_kernel_power_off(); + default_power_off(); } void machine_power_off(void) { - if (pm_power_off != NULL) - pm_power_off(); - else - default_power_off(); + do_kernel_power_off(); + default_power_off(); } From patchwork Sun Jan 30 23:37:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538376 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 6ADF5C4332F for ; Sun, 30 Jan 2022 23:38:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357149AbiA3XiG (ORCPT ); Sun, 30 Jan 2022 18:38:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357134AbiA3Xhm (ORCPT ); Sun, 30 Jan 2022 18:37:42 -0500 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78663C061714; Sun, 30 Jan 2022 15:37:41 -0800 (PST) Received: by mail-lf1-x12a.google.com with SMTP id p27so23342646lfa.1; Sun, 30 Jan 2022 15:37:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=y24DENQRtEKdQppbGIKyd5oN0ftjyxygovRkGgk1ggI=; b=iye0IDf8S26dwLx295PYKApjfR1uhOWkwFRwEuTaz7HfVp5gNRTd7PsGZcdNXus2j5 KC4hfRnns4Q3gDw6FYYl2hiGD9zyQ++BtQsUN5sSEIWlqdWsG1HgjgoDbwION7zck9/B S8MhYR0qnGU76YGP6zQCb71/H90UqaQBgBJGYf9Z6F3zA18hOB/JJMmd+MfBgMIf44bI sMILvpsYiXOPyNn3wn8H/3IuNgSMTY5MBK2vT4Gl2WvXF7Wqy+10WxR4R+u39c/0cwYM yj8NA83EDXhIuKdSCp9nssU1hiFyiw4wPTkhvi9jW5WvzZ+itFPqw8PQ5rG3RKpTYBTp Kbhw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=y24DENQRtEKdQppbGIKyd5oN0ftjyxygovRkGgk1ggI=; b=y++Xszou/9Y+yRoL9cf6F8U2n2O40gaopEY/msCJF5bF/3nAdfn2/TNAzkqSfsjmYO m0iqAkS00PJy2gqVeianMmM2rOFFB613boaT/PyYnOVTzTxUgaa4lel0PHz19IT9Dls5 smFCZ0IPmQ5VJ9QIGY7r9SVvYtVtE4hGso6yqnOFo8wfgeRz6v1G84LqbVmnpeWYoIaX ps0Tu6Ldr1RetVx9c14mKz2az1I2wflJxPZr04gJutQ9O336MEe1fxtpTUUzegEin7FN B2MQL9MJi6eYZgdAiWzF4iVoTkNtyYeDA+iZi1MQZ7sIdSdNwWTaGPfbbWsDsg6BwKdN lgbg== X-Gm-Message-State: AOAM531kJUkxtzayI64aPd0d4Z+wOCWMlgxhVwy07jrNZwz3szI3ILaa UynrtN77BB9Jgq8soPedzcA= X-Google-Smtp-Source: ABdhPJwUMukTmRLWxE4WTMsRGXBxMbLNoOfsYOAYvD7oQJog5SiqqQ5VNyGL25QpTozq+s6lOQk2Yw== X-Received: by 2002:ac2:5186:: with SMTP id u6mr14721765lfi.519.1643585859891; Sun, 30 Jan 2022 15:37:39 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:39 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 08/21] arm64: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:05 +0300 Message-Id: <20220130233718.21544-9-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Catalin Marinas Signed-off-by: Dmitry Osipenko --- arch/arm64/kernel/process.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 5369e649fa79..6816a23bacc2 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -111,8 +111,7 @@ void machine_power_off(void) { local_irq_disable(); smp_send_stop(); - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); } /* From patchwork Sun Jan 30 23:37:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539211 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 E5787C35275 for ; Sun, 30 Jan 2022 23:38:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357175AbiA3XiH (ORCPT ); Sun, 30 Jan 2022 18:38:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357152AbiA3Xhn (ORCPT ); Sun, 30 Jan 2022 18:37:43 -0500 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A290C061401; Sun, 30 Jan 2022 15:37:43 -0800 (PST) Received: by mail-lj1-x22b.google.com with SMTP id t14so17068982ljh.8; Sun, 30 Jan 2022 15:37:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=AgUqH21X35PnBCT61HDKwIodN/aq26TmgR9kDSi8+dE=; b=fEIAF9bcuqAzIb/0tvvq3O8BS3Czq/h/Pef82qF5eHHyasojPcfrbzHIoydtxto2wQ wX3GRnvjdbDLsYzgPU//nRHxWx9+vDmqu8vdYaGgwj5L8VR9yxpsog+gt5eJPplHLl4e kqhHMmdlDa++8c9buauTRSwKJ6jfUHn5/JsOh2KUKr7++Tl8q3EC24jzcc+1IqofA7cx yXwlnX+5/2eKeRHjSIgSHEbnUPlgmP3R0LM3AyLuosb/cm9cEGXdYAYHlBtd7sLoPY5e i0MqdVJGdefaKvtADgtcIGnn2Rb9Fp4xI/VcrEBkKlMINocLP6Acwod5XzODcGIEG+vI gglQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=AgUqH21X35PnBCT61HDKwIodN/aq26TmgR9kDSi8+dE=; b=the4aBBYSTSk/f5IrFO3xCkXtvG6L/0izQZz4tpJqC2Hw2+p7Ljc/7FHsjGeX29yn1 o+VRMM0HcEx3ODKpSZ6x9O99oNsato2ufHaXLigu9feFOafycCF9LbcdfnsVnTt3AVJw IayxuxJpzmk6YlsRuqL0NwzxyjNkOKgYsM/UYuAMUcPdRboTPCAP0nLyIYPOQqwLC+0X HpN5SBk2fvhJm1z2FdJZgXv06W9JeHuqAZHEMdCpo4AaTHtuSLdjKxIb+j/ywFkTJqBW WpVcba3f19k7mOSZxU+4BqEYVuuj2i6ND35gNVj2ozAFQEGpd+K9WeZmfTGzKNdDwQle BP3g== X-Gm-Message-State: AOAM5318mOrPN9kmNiilNvGVQAht7iHEjPG5kqDEVE1DWzg0yMkAirRA Hm9HnDG/9mFAdTrgEOhIqng= X-Google-Smtp-Source: ABdhPJwQcQFogpM/qB5H07sE2bxg4HVgxxJELrz/nZ4JWWpyA2e1jZd2qT8OYjJChyxa9ZABZerkCg== X-Received: by 2002:a2e:8699:: with SMTP id l25mr12382831lji.91.1643585861720; Sun, 30 Jan 2022 15:37:41 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:41 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 09/21] parisc: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:06 +0300 Message-Id: <20220130233718.21544-10-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Helge Deller # parisc Signed-off-by: Dmitry Osipenko --- arch/parisc/kernel/process.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index ea3d83b6fb62..928201b1f58f 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -114,8 +115,7 @@ void machine_power_off(void) pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); /* ipmi_poweroff may have been installed. */ - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); /* It seems we have no way to power the system off via * software. The user has to press the button himself. */ From patchwork Sun Jan 30 23:37:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539210 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 F3DF7C433FE for ; Sun, 30 Jan 2022 23:38:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357218AbiA3XiK (ORCPT ); Sun, 30 Jan 2022 18:38:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357046AbiA3Xhr (ORCPT ); Sun, 30 Jan 2022 18:37:47 -0500 Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E696C06174A; Sun, 30 Jan 2022 15:37:45 -0800 (PST) Received: by mail-lf1-x129.google.com with SMTP id b9so23275087lfq.6; Sun, 30 Jan 2022 15:37:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=66lCIOUKcPJ2J+m4Cr3ZW94G0lABJXZaED/s9f5QGmA=; b=IaLlORDZoeaYRpO44854hgYk2/vgTJOclvwIF3Vv/dy/WRswOVfYMTb/lgYFF6u20R kgD4kuaMUZhPrzrsrp+1aHUtVBmfCdIQHjkOsK+D3JxP5SLPXm0dCS3YEeqxtX5eYSIx 8EdSobISpvnT22JqnHeoUtNW+EX+/cnH1SeCCQB6STOy1ozdbhelGYqvV1xMpt5YBA99 B/96htM+mne2xjdlCrcPFCtKPM7GzoR7BZlH1OzPT5hR1hE9cLpw2j5lrnPZ7ZPlmwwI nMOCD5Tt0vJ4ks8CXxb7pk/YLn1ILllHgnHrKEVAgGpxNOjR5JCV7EBSVseqXYt1IKk7 FSXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=66lCIOUKcPJ2J+m4Cr3ZW94G0lABJXZaED/s9f5QGmA=; b=QpEcDSDiayNvkQ76D3dsmgmr0Iwh68el8GXWnbyfIJUUuOTzqwuXr2Q7Vaqh+wZJpo 4w5e9tP+i50A6X2rA/gKcqb9avQgg28kVyAQIA1P8mJ6SSF4pykpqFOywgy1nN+1cK9u jEneYOw+gpieySlEm8QFgnoY3uWvaRHGIzGEzMs4M2r3Khpue7rywXq8a/GvpodC6sRn BJ/YOTF4SlwEO73940ncHpO+GiHjNzh4BVLnG9pe5UsVnT3nCfnE93ViQrhHQLLe4gg4 fLPGD43bXELTeumgsuPSbUXh2hTSisKao7H5PV2aEABNhLW6fdXwiUQdH35djJGU9qlO wWFg== X-Gm-Message-State: AOAM533RdK9TY97pM15JtF+xkOiNnD/6Wp8vKZlMaYYqBDVY423KTEo3 qNNYeZKYDeM/eb6XU3pOh04= X-Google-Smtp-Source: ABdhPJw0xUt9j/jtl0uaDt91Bsr3KfV7lR3RRZqMVEqi4OIibegSJcLOPzN3p/u9YZbK6f72FdmH0g== X-Received: by 2002:a05:6512:3091:: with SMTP id z17mr13662510lfd.216.1643585863533; Sun, 30 Jan 2022 15:37:43 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:43 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 10/21] xen/x86: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:07 +0300 Message-Id: <20220130233718.21544-11-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Juergen Gross Signed-off-by: Dmitry Osipenko --- arch/x86/xen/enlighten_pv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 5004feb16783..527fa545eb1f 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -1068,8 +1069,7 @@ static void xen_machine_halt(void) static void xen_machine_power_off(void) { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); xen_reboot(SHUTDOWN_poweroff); } From patchwork Sun Jan 30 23:37:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538375 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 0C7C2C35270 for ; Sun, 30 Jan 2022 23:38:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357152AbiA3XiL (ORCPT ); Sun, 30 Jan 2022 18:38:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357171AbiA3Xhr (ORCPT ); Sun, 30 Jan 2022 18:37:47 -0500 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB1EFC06174E; Sun, 30 Jan 2022 15:37:46 -0800 (PST) Received: by mail-lf1-x134.google.com with SMTP id u6so23257166lfm.10; Sun, 30 Jan 2022 15:37:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EOoRrU+XNCvH4y2De/y0/3nvouQcv+AIk9CqttDCqGU=; b=Xenhc8uEX5pndBJlaDWs7DZMq++uCKYCaPhTRn+v8Pl6kdDQBiq3K+xk68g+lJ4bfb xZ0s68SQJzgN7roWd+Sm2QhFGePj8q4/xhI0aeufWhORrHMmrI9Me+kOtUbih63bZtb6 0ONUKG+oe3tUPDlqh+XwtnfSXapDSUNhobEfHkXXD2jWYeC/eLrTsR82DtHf6HHPZ3Ti T856rZoGRovN/ZZzwL74avJYGt+XINSCwpiKRk5t0Q88fCFTaGgu6LEev5sylA8ww9qW bEbiz2YJdBL1j7FCE0FI146AM6wMNEQmt3CI8lSlsxZpxhGAK8uAOhBigDyDJ64IQ5ph fLRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EOoRrU+XNCvH4y2De/y0/3nvouQcv+AIk9CqttDCqGU=; b=oy4qJY+NvTNpkzyTqHL1xIYrF4pW2FaR2HjzrbadbVAHiVaYwhEoMvmeteWPJVT1p9 sshR8eLohKMcOLsHYxO6ucgGxnqvqZBGva0t0x5BE52E7SRH9hIYIxds69xtP0s40ygM Y3tSl97l+CKQG13f0QkEHREeVLD07LIm12wDXeUJBZAFy5kFYTOLAi+lOdT/Eu6tqVFe NeHohJ1XGuacrQMt6O6Gn1HjFLiMi05PP7K1YwEO0P3iDhONFepGoMg3eR/nWKHCGn7z Adnk2Ww3Og2yKJfhD4CLhjdvFoV28GBHYweszTeF1aKoO/i3sbVTGjYddnYHCoH6E9qu C6Hw== X-Gm-Message-State: AOAM530n0J+xi3GNU5P7PxAOuog1+OHyPWjDRmZMNWLOZRmBK+sKrATn 5h9dhQmuGC6ETNigrQZCkoE= X-Google-Smtp-Source: ABdhPJwHvsxF1vvJkDiGpTgqSXjFtQ+p50F4FDOHob5db5lzmW0uNoHuWaSIs7Seja+8JuHVDBb7qw== X-Received: by 2002:ac2:5333:: with SMTP id f19mr13304920lfh.451.1643585865359; Sun, 30 Jan 2022 15:37:45 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:44 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 11/21] powerpc: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:08 +0300 Message-Id: <20220130233718.21544-12-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Acked-by: Michael Ellerman Signed-off-by: Dmitry Osipenko --- arch/powerpc/kernel/setup-common.c | 4 +--- arch/powerpc/xmon/xmon.c | 3 +-- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index f8da937df918..8158e940db81 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -161,9 +161,7 @@ void machine_restart(char *cmd) void machine_power_off(void) { machine_shutdown(); - if (pm_power_off) - pm_power_off(); - + do_kernel_power_off(); smp_send_stop(); machine_hang(); } diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index fd72753e8ad5..c916bf250796 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -1243,8 +1243,7 @@ static void bootcmds(void) } else if (cmd == 'h') { ppc_md.halt(); } else if (cmd == 'p') { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); } } From patchwork Sun Jan 30 23:37:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539206 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 716F8C433FE for ; Sun, 30 Jan 2022 23:39:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357136AbiA3XjR (ORCPT ); Sun, 30 Jan 2022 18:39:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357199AbiA3Xht (ORCPT ); Sun, 30 Jan 2022 18:37:49 -0500 Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C66CEC061748; Sun, 30 Jan 2022 15:37:48 -0800 (PST) Received: by mail-lf1-x12c.google.com with SMTP id n8so23300627lfq.4; Sun, 30 Jan 2022 15:37:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=tAbveYQ6Sj9Bc7jSTaK6mqXkvmIczcqPXf0PDpGOqZw=; b=QHplLZpG4Vn/qnA5SF9xQFG9TC0Ze8i4Spzrt9m1VH9xTuo4sL+GdKpNLnJA7KOr8X Qfc/trGP80uyWOnL6/AW3/9PNKh6sZ4v+/AJr0yDEUAv6gwF+kbxhdx4PyYuQlWkYmBT 5dcnK+FjbXKDiIkDUIeSgduqdLBtuC8rMXlJOwSh6i5VHZUwrW/dUGAwRrpUn/Af/fxj WsMvnRXnP4aQQ0nueTuih5zFAem9IsmzVuE9wBKY5qbRUAnxw1SUKdH9hUrXyM5G4iNf Wv3uZZ05umzkgZLlfNoLjxiV+CUOHCuLo8ttBfu5AssPJfG1v91CF2F7LItDTfLU1kFo 8YCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=tAbveYQ6Sj9Bc7jSTaK6mqXkvmIczcqPXf0PDpGOqZw=; b=Tw3kXRAzUQEM0loksTPhwQm/Q4QdZVu9mqG3UAoJzi7hP/4xqe9dMQpWm9EQBE4Nks TdTa1McynMfVEk5vE7K/lwC76DPVj+KFOXuY0Jugu8FNK26sG+rGOvZ9Kq7V+FEfw3Yy BQ9oIpo7BIf5OSNgsiJOhU5BjWmilGCJLrZrt6Sf4tmuM2hGOKc83vlmlWRXYB4oz1OR qQXsJtL5ZqV1gIQbMZira+6QAg0yaLPijIYoXLbLnjmRLazA97FbH58EjQ08XuIBsp3N FL7zCkg/07dehJCFfVxzZ+QKU/u/KpMf3NKN5dJR0tex0uFHtEDlTWYvajkNuU4C9Nwf E1vQ== X-Gm-Message-State: AOAM5324VoxWar/fZm/K4DrkF6iMgaoyGGdKahUNdVOqtT9LkL28POlu nFzXLLMURjaSpgJrelH+HFk= X-Google-Smtp-Source: ABdhPJwh6ac6/+YvlvcJArSyTbTVyJtyah+mG/ZsA52vJGw4uJf6+kKdZUm5PeIMLD7zMqHGNap5TQ== X-Received: by 2002:a05:6512:2396:: with SMTP id c22mr12993704lfv.547.1643585867143; Sun, 30 Jan 2022 15:37:47 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:46 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 12/21] m68k: Switch to new sys-off handler API Date: Mon, 31 Jan 2022 02:37:09 +0300 Message-Id: <20220130233718.21544-13-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use register_power_off_handler() that registers power-off handlers and do_kernel_power_off() that invokes chained power-off handlers. Legacy pm_power_off() will be removed once all drivers will be converted to the new power-off API. Normally arch code should adopt only the do_kernel_power_off() at first, but m68k is a special case because it uses pm_power_off() "inside out", i.e. pm_power_off() invokes machine_power_off() [in fact it does nothing], while it's machine_power_off() that should invoke the pm_power_off(), and thus, we can't convert platforms to the new API separately. There are only two platforms changed here, so it's not a big deal. Acked-by: Geert Uytterhoeven Signed-off-by: Dmitry Osipenko --- arch/m68k/emu/natfeat.c | 3 ++- arch/m68k/include/asm/machdep.h | 1 - arch/m68k/kernel/process.c | 5 ++--- arch/m68k/kernel/setup_mm.c | 1 - arch/m68k/kernel/setup_no.c | 1 - arch/m68k/mac/config.c | 4 +++- 6 files changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c index 71b78ecee75c..b19dc00026d9 100644 --- a/arch/m68k/emu/natfeat.c +++ b/arch/m68k/emu/natfeat.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -90,5 +91,5 @@ void __init nf_init(void) pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16, version & 0xffff); - mach_power_off = nf_poweroff; + register_platform_power_off(nf_poweroff); } diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h index 8fd80ef1b77e..8d8c3ee2069f 100644 --- a/arch/m68k/include/asm/machdep.h +++ b/arch/m68k/include/asm/machdep.h @@ -24,7 +24,6 @@ extern int (*mach_get_rtc_pll)(struct rtc_pll_info *); extern int (*mach_set_rtc_pll)(struct rtc_pll_info *); extern void (*mach_reset)( void ); extern void (*mach_halt)( void ); -extern void (*mach_power_off)( void ); extern unsigned long (*mach_hd_init) (unsigned long, unsigned long); extern void (*mach_hd_setup)(char *, int *); extern void (*mach_heartbeat) (int); diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index a6030dbaa089..e160a7c57bd3 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -67,12 +67,11 @@ void machine_halt(void) void machine_power_off(void) { - if (mach_power_off) - mach_power_off(); + do_kernel_power_off(); for (;;); } -void (*pm_power_off)(void) = machine_power_off; +void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); void show_regs(struct pt_regs * regs) diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c index 8f94feed969c..47d55541612f 100644 --- a/arch/m68k/kernel/setup_mm.c +++ b/arch/m68k/kernel/setup_mm.c @@ -98,7 +98,6 @@ EXPORT_SYMBOL(mach_get_rtc_pll); EXPORT_SYMBOL(mach_set_rtc_pll); void (*mach_reset)( void ); void (*mach_halt)( void ); -void (*mach_power_off)( void ); #ifdef CONFIG_HEARTBEAT void (*mach_heartbeat) (int); EXPORT_SYMBOL(mach_heartbeat); diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c index 5e4104f07a44..00bf82258233 100644 --- a/arch/m68k/kernel/setup_no.c +++ b/arch/m68k/kernel/setup_no.c @@ -55,7 +55,6 @@ int (*mach_hwclk) (int, struct rtc_time*); /* machine dependent reboot functions */ void (*mach_reset)(void); void (*mach_halt)(void); -void (*mach_power_off)(void); #ifdef CONFIG_M68000 #if defined(CONFIG_M68328) diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 65d124ec80bb..382f656c29ea 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -12,6 +12,7 @@ #include #include +#include #include #include #include @@ -140,7 +141,6 @@ void __init config_mac(void) mach_hwclk = mac_hwclk; mach_reset = mac_reset; mach_halt = mac_poweroff; - mach_power_off = mac_poweroff; #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) mach_beep = mac_mksound; #endif @@ -160,6 +160,8 @@ void __init config_mac(void) if (macintosh_config->ident == MAC_MODEL_IICI) mach_l2_flush = via_l2_flush; + + register_platform_power_off(mac_poweroff); } From patchwork Sun Jan 30 23:37:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539209 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 C46F8C4167D for ; Sun, 30 Jan 2022 23:38:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357420AbiA3XiM (ORCPT ); Sun, 30 Jan 2022 18:38:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357223AbiA3Xhv (ORCPT ); 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[109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:48 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 13/21] sh: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:10 +0300 Message-Id: <20220130233718.21544-14-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko --- arch/sh/kernel/reboot.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c index 5c33f036418b..e8eeedc9b182 100644 --- a/arch/sh/kernel/reboot.c +++ b/arch/sh/kernel/reboot.c @@ -46,8 +46,7 @@ static void native_machine_shutdown(void) static void native_machine_power_off(void) { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); } static void native_machine_halt(void) From patchwork Sun Jan 30 23:37:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539208 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 00064C3527C for ; Sun, 30 Jan 2022 23:38:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357439AbiA3XiN (ORCPT ); Sun, 30 Jan 2022 18:38:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357247AbiA3Xhw (ORCPT ); Sun, 30 Jan 2022 18:37:52 -0500 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DDE5C06173B; Sun, 30 Jan 2022 15:37:52 -0800 (PST) Received: by mail-lf1-x130.google.com with SMTP id u6so23257473lfm.10; Sun, 30 Jan 2022 15:37:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qHFCRJN9BVY8RauX1oKR/zvQzYk8hOXc8BKode7q7dE=; b=YRe+4ENn+xLHydu0qjVK8NSLNEa98MBt5tDc08FixS3wAMtLqAIaFtklni0+X5AStQ NWa/KRzoUn8+IVpsHAm/xOs3k+cj+LL2OhKl5gVUEFkp5ndqFg9Q7IDP7ikRXZxwNK+4 SbLkN6wlP8yDXzq0kfXqbvVsy1Hp18D+sINvf4RsWjU2CJLvpbxk+Pf4y4Di+ROI2ccO YZHUhr0Z8uHoIysiX6fudWOQ4mPt5OAElluDMzBTS4VC1jyp+W5tjIzGJQ2uBLL5DStr tO2S0szt+wkyquwgkXuRB6clwJUeXCGMkJhIWs2QZ///pnQ6oMEGbscGlCpylcxuYJ5J 9wBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qHFCRJN9BVY8RauX1oKR/zvQzYk8hOXc8BKode7q7dE=; b=pTerlkKDEcgElBn3Z5MDo7ylqGVeNzRgavrsAFq9y1TcPRbffNcCc/Uql128YH1m2e +aOuTFJ1yKaHxxLsuFmdTq4G+2+j2qwtkt7Nl7OWqpel0r7uyv/dmSaCmqGvFbQlTav3 sDuLtDMOE+kLOYohU0rKQZIf+hfQTtn2V+kjvmxpbvKx65xUrIMdnexC1EZb8kHKez8d ChDp3PYFFvZanpKPyp8y4bg6PlNauA1nXlR8fyPap/qIpWNYCbvKCELEFOdpIGDwdcYk m1QNVUCz3asAEUnLFvljG4yeAQttGNztXH3m5a9m8hsHoLkdoB0mdp9wrpBOfYVcAV4+ O/5A== X-Gm-Message-State: AOAM530PjOaK5tpaazRN4UTH4mCvcnJFpFnHZRM/+2cUZfKOg/336fbL I4qLrj5Y0ehcTc0esmdcRy4= X-Google-Smtp-Source: ABdhPJykkAmU8QPmCYCQWolQuhTlQmgl/dllVJKfSuOOVtywU8GyeEW3uMb4RjUXLkfRs/7Y/PbgFw== X-Received: by 2002:a19:6a12:: with SMTP id u18mr13556400lfu.348.1643585870718; Sun, 30 Jan 2022 15:37:50 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:50 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 14/21] x86: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:11 +0300 Message-Id: <20220130233718.21544-15-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko --- arch/x86/kernel/reboot.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index fa700b46588e..c3636ea4aa71 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -739,10 +739,10 @@ static void native_machine_halt(void) static void native_machine_power_off(void) { - if (pm_power_off) { + if (kernel_can_power_off()) { if (!reboot_force) machine_shutdown(); - pm_power_off(); + do_kernel_power_off(); } /* A fallback in case there is no PM info available */ tboot_shutdown(TB_SHUTDOWN_HALT); From patchwork Sun Jan 30 23:37:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538372 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 8D9B9C35270 for ; Sun, 30 Jan 2022 23:38:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357483AbiA3XiV (ORCPT ); Sun, 30 Jan 2022 18:38:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357275AbiA3Xhy (ORCPT ); Sun, 30 Jan 2022 18:37:54 -0500 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50F8CC061401; Sun, 30 Jan 2022 15:37:54 -0800 (PST) Received: by mail-lf1-x134.google.com with SMTP id a28so23276405lfl.7; Sun, 30 Jan 2022 15:37:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=onbjYH+GRuJ1H+aKPIQ3zfVzcOAEVYGJovL5WFpgYzE=; b=UH1XcKU9Gn1SSFj/c6UF13MQ0Jk4L0iTHT84SKL6CKoxP6s+KdtFoXyH/BcfyYDpHy loZc76siXQCxc0BEyl6FoScWMfzkuy0+stkGcZcwGW2GEdy+KMmBYv7TWditUzAcwMzy Tt6+cvIqwyyrufTRsRpGGLkldJ9LCj0ohCU13mN/KWIDXPq7wGpxAM7zRuw3yc8XG/sX kB5V6sSPdbwBeQeNfwWdQOiHlVD0cbXl/3KN+Taw7rwJQ9btmTdGH9V7WkpieowAbyRI LCnnw5FiTCZdg9w/dnOXicsOkOVxD4dBkbYZp5w48IHi/dsTV0RcMVW6iF0qd1ahO1Hj Vr0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=onbjYH+GRuJ1H+aKPIQ3zfVzcOAEVYGJovL5WFpgYzE=; b=Iw4X+dLgq4TQ1J7pwQ4D22scVGfIV8U4OcsrGwhQFy79n0p6VcTx2aQg0HUa+eSJoe ywss2gjH/4VbyQ5z9FH4qxa3FoapRDVprAQiAwDLHM+L1vBiQMgifNNN9PZSA/cY1eVw Mg3jtw+6aqbP/2k9akJLnu+EXg21VMvmiXA+Hc9MZZmCKxDZkPUMTwmSsZ769b6DrkYv aaVc/uR0rj0iY6hdBmcNItcPvRju+P37pB9PiKwhhEkLHiTfn0rqC1x/UgJenrwra+da 2UkV/GKYgyy3yCKQZX+04HPbz53BaJX19IuJ6n3wf3mR7mooLBI9ElIHRNsFP6q6oT4d theQ== X-Gm-Message-State: AOAM531UrgDOUjeDHw6JYRSSb/pjNZVMevz2ZKclWxL8syUHXgtaGdrY ziLfIZgkDWcmvYcClf5kYEc= X-Google-Smtp-Source: ABdhPJzNx9wknKIs7vHNlQS9Ch9++IYsC8MJz1WUWotZ0fgIzeDZMu0xSzBho+J/7CYm9WmVvjoXbA== X-Received: by 2002:a05:6512:31cd:: with SMTP id j13mr13576351lfe.369.1643585872718; Sun, 30 Jan 2022 15:37:52 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:52 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 15/21] ia64: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:12 +0300 Message-Id: <20220130233718.21544-16-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko --- arch/ia64/kernel/process.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 834df24a88f1..cee4d7db2143 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -599,8 +600,7 @@ machine_halt (void) void machine_power_off (void) { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); machine_halt(); } From patchwork Sun Jan 30 23:37:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538374 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 866F8C4332F for ; Sun, 30 Jan 2022 23:38:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357445AbiA3XiO (ORCPT ); Sun, 30 Jan 2022 18:38:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357305AbiA3Xh4 (ORCPT ); Sun, 30 Jan 2022 18:37:56 -0500 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15115C061714; Sun, 30 Jan 2022 15:37:56 -0800 (PST) Received: by mail-lf1-x135.google.com with SMTP id z19so23194371lfq.13; Sun, 30 Jan 2022 15:37:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wIfZ+CakpfzF/ji3grllPcoAe/10yjc1ewRUofBsGOM=; b=A13Wbd19LUDerIcNp/bwkNjnM7R44S+FNahenjlu62KKeZzOwn22X46AmnbpRRHSD6 ++VeiYi+w5973OIjqsKBoqpWZd1tNrsstlD+OK5Nb2BIn3qQuUxHMsdUL9LOLlnC2oh9 3QYxZJ6Rvcj4kbBtFo+GSvpPb2P4Us99EVxpEAj6NeCn9wQxCxqcvyPU6/Tn7QITtakm /V8zmLAMP0Zz48vMEXqiIlcDRfQmJ+d8Go+JSVClm5dRCb8xO1gx+MaZWCx1Y3YgBNEK BDZgHhW3BSNpzM/0TkvVs4HG5kI01iX7LNugVEJmEF9vWL8OTabOwQyDCncuLuPplJj0 eXww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wIfZ+CakpfzF/ji3grllPcoAe/10yjc1ewRUofBsGOM=; b=LRYKDWN8g1xqtNH89HJJUkU+6FM24DZgIuMmvx0OUIoEUPDc523KpQxYGr25K+emgt p1AE4yJjiYFv3B6e9v1nCsUuAn8nh/aoX5InSxBr7J36OzYafPrh1wlvBCqJBrATRTOY 0+2iF2wUorOMYneRdYWJIRjQuImh+UjfyBUtr/c+WXIa20NH9NmNNc/rQzmkBDEE3DQQ tfbgFfpm8nhUD5lv3HQqzZG9l+Eikr5s/sFi1mBzEgF44zSfUeNRZwQGMFnG+QDqp7de A2TRf3DErgaLroadBUTwy5Hpf3K1ZkPKNVrrsIaLA6ESY2sSHzhxXp96/CWS+ZLP8m5v jkjA== X-Gm-Message-State: AOAM533nujfS9HQVUYcptj+EqdnkRqP7Ux3cRTOVszJLLeVqnP+orfyn Nn8jvGdC8HD+mS/5laPz5yQ= X-Google-Smtp-Source: ABdhPJyeM0zHMQgSAKLIY1pkC0yU7P3sq8yPWGFis8laCOZJiGOjvUQ29pFsEShO7sH0bxipvLhl6g== X-Received: by 2002:a05:6512:c09:: with SMTP id z9mr13566872lfu.147.1643585874478; Sun, 30 Jan 2022 15:37:54 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:54 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 16/21] mips: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:13 +0300 Message-Id: <20220130233718.21544-17-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko --- arch/mips/kernel/reset.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c index 6288780b779e..e7ce07b3e79b 100644 --- a/arch/mips/kernel/reset.c +++ b/arch/mips/kernel/reset.c @@ -114,8 +114,7 @@ void machine_halt(void) void machine_power_off(void) { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); #ifdef CONFIG_SMP preempt_disable(); From patchwork Sun Jan 30 23:37:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538373 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 1F599C433FE for ; Sun, 30 Jan 2022 23:38:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357463AbiA3XiS (ORCPT ); Sun, 30 Jan 2022 18:38:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34382 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357320AbiA3Xh6 (ORCPT ); Sun, 30 Jan 2022 18:37:58 -0500 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D24F9C06174A; Sun, 30 Jan 2022 15:37:57 -0800 (PST) Received: by mail-lf1-x134.google.com with SMTP id z4so23317102lft.3; Sun, 30 Jan 2022 15:37:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=69wNajrm4+G/M74hrnrqfe/8gDIP1KRo4GBjc3qiBlE=; b=eADmGdhywqGHgBNSOTg6DDqxchm8B8ixUxTFBRIurSpOjI9zmNGmnnTl7ImQhqB8Ei 0mWnD7TAo0wSYeOZ937uVVcmUSkjlnYWZ7M+/JM6Dh7lyKqqc2++u6LI+atIfPTN5ays s+ktDvb2sLXt8MKBHLK9lwAFupFTVgxMIzESdB4QojqTGIkGjlXlLAoIu5tRpwgO0yvf ryjVbvaJTv11mzbS9UuOXGg5YPShB0ncAu5hIuMku9PpTrfxOLc753LOzzY0nXEsJ4s1 aTORw1Zo0yFFM9ZCzLTV1LBU1iplcGdbnitByV0PuagiZ7HTypKyLYaRcYB4LG2Z4YgC xHEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=69wNajrm4+G/M74hrnrqfe/8gDIP1KRo4GBjc3qiBlE=; b=TnZXdwpJY4IgPsAIv1kvWbFtLbeOzOp1PYbrlz483HztIGkd5fZANF765Tp7nydKIF dkWT/5gMBuPfs3Ufcvyxqdd1A2hmonf/EU0+wXiv6TEj2464XiiOeaSl7bgLoaQOUaFN 8BysbYTaHQ+c3vkqN8LdQkbDiRw/u2b7CcTBWvrZeOID/FGTDIOfebctFDK9jevNYHpT 4gLXQMr2yXmaaMZkGBPrQIX2nEC9Bb3Tv0UAch/OQPXEwTbtCBgTE4omqANvZ3vwmZ/d K0cYtgWtEEV5Xqj9NP54rSRmggWyCD/IBsVt4ty3JmFh5TvArDH8E2RwkRJutnxCtd4H rjGQ== X-Gm-Message-State: AOAM530DVKFLqncXe4UKhgLk2jA7FHcSfV9mKi9rQtCjYAqpec3Ewhn5 hZ/fKELL1BoKWSl5XUO0+S0= X-Google-Smtp-Source: ABdhPJwNSyf/5qJrwp6Ej2liXxYcZa6QcRMNedNFLOrkN6ogQ1iJOFH/fhB+J9LuMCwJeeOYVcQcPA== X-Received: by 2002:a19:f806:: with SMTP id a6mr13933723lff.592.1643585876243; Sun, 30 Jan 2022 15:37:56 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:55 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 17/21] nds32: Use do_kernel_power_off() Date: Mon, 31 Jan 2022 02:37:14 +0300 Message-Id: <20220130233718.21544-18-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko --- arch/nds32/kernel/process.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/nds32/kernel/process.c b/arch/nds32/kernel/process.c index 49fab9e39cbf..0936dcd7db1b 100644 --- a/arch/nds32/kernel/process.c +++ b/arch/nds32/kernel/process.c @@ -54,8 +54,7 @@ EXPORT_SYMBOL(machine_halt); void machine_power_off(void) { - if (pm_power_off) - pm_power_off(); + do_kernel_power_off(); } EXPORT_SYMBOL(machine_power_off); From patchwork Sun Jan 30 23:37:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539207 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 2F49FC3526F for ; Sun, 30 Jan 2022 23:38:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357476AbiA3XiT (ORCPT ); Sun, 30 Jan 2022 18:38:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357338AbiA3XiA (ORCPT ); Sun, 30 Jan 2022 18:38:00 -0500 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9408EC061757; Sun, 30 Jan 2022 15:37:59 -0800 (PST) Received: by mail-lf1-x134.google.com with SMTP id bu18so23308852lfb.5; Sun, 30 Jan 2022 15:37:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6m8P3WoXpjmgm4wPv3Z7h5cBjPxfBSCYucbGZeGzChw=; b=pw0lvBk+dTz3ObiHx+Tziue58w6zUuZQVNJvU9S7GB+pTzwAHhgcj/iJlwXXxw2erP SjJaIXCKqSP4ZUdeywJtZKFLRYiUBBH6flK45216wEu+kAKbGqsUiHPKIi82YM1bz/wq bMKu0rK0969KEuxg/PSMaDE+zRgG2hxtPkS3M1mFIZPAgYW4ktfU2t1MzGq6fvtQ0WCp Y+7PFXh6gcLp4xF5Q6p6cFH24zY5vWjbmW+bewwmKwBTNzJ37xEIcDLIFgNsMgKiVVBl Kl81Cxsay4XTPckhsJ1WeXkyEjcWdoSjNX8wa8Lm2Ykdw2ly2wOfBD20u+sG0elmdIGM o1xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6m8P3WoXpjmgm4wPv3Z7h5cBjPxfBSCYucbGZeGzChw=; b=h2mCAOMbZbzkk1ECRXctqaYnGatW35mubMGZmnZacbSh9EiDoYQ8lcbu/SbHDg5Ebr fBNVSWqA3CweZuJi17k+JIU7LPyzqJQ5rjO0zB7x3fisw2WqRgC7laI4Lft/2E2/8tB7 dMHNOaz3nZLz0kIcb3JVokb/p9rqdg+UfaMEwsvmZDe9CI5/bXxy9tGlO++gfUHa/U1M XLX8p3k8UZGLbQY6YBlJW+dFoqDwjnMTCO5GUeHZqxGm9yuesFWNQr5nsTVlNNERWJaa hUKTAFWXrRywodocMcxAvHBt4rZpVN5V+w45VePT+Y8sXsxpLJBLpMxFRBhVjmwUxOyV 4VGw== X-Gm-Message-State: AOAM5314pkahsagkdMyOm7+h+d3Sj+72SBJiHS6o8UmxP7/C6u38s8xG l5bNnG9GThRDCdvpwYQxdmc= X-Google-Smtp-Source: ABdhPJym+9e+qz3b9Eox6rk6EROG58IYAq1gwBJQdx3IJq9mRqA6OUoE67/3HvdiOb6Vb5OIHzS4jw== X-Received: by 2002:a05:6512:10c4:: with SMTP id k4mr13546209lfg.63.1643585878009; Sun, 30 Jan 2022 15:37:58 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:57 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 18/21] memory: emif: Use kernel_can_power_off() Date: Mon, 31 Jan 2022 02:37:15 +0300 Message-Id: <20220130233718.21544-19-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Replace legacy pm_power_off with kernel_can_power_off() helper that is aware about chained power-off handlers. Signed-off-by: Dmitry Osipenko --- drivers/memory/emif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c index 762d0c0f0716..cab10d5274a0 100644 --- a/drivers/memory/emif.c +++ b/drivers/memory/emif.c @@ -630,7 +630,7 @@ static irqreturn_t emif_threaded_isr(int irq, void *dev_id) dev_emerg(emif->dev, "SDRAM temperature exceeds operating limit.. Needs shut down!!!\n"); /* If we have Power OFF ability, use it, else try restarting */ - if (pm_power_off) { + if (kernel_can_power_off()) { kernel_power_off(); } else { WARN(1, "FIXME: NO pm_power_off!!! trying restart\n"); From patchwork Sun Jan 30 23:37:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 539205 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 285C4C433EF for ; Sun, 30 Jan 2022 23:40:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357186AbiA3Xko (ORCPT ); Sun, 30 Jan 2022 18:40:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357394AbiA3XiF (ORCPT ); Sun, 30 Jan 2022 18:38:05 -0500 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81396C06175B; Sun, 30 Jan 2022 15:38:02 -0800 (PST) Received: by mail-lj1-x22e.google.com with SMTP id e17so17113900ljk.5; Sun, 30 Jan 2022 15:38:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Fjun7H7HFd6eJVLuHg+U86J15PDVhx/hGCMSiPgf2P0=; b=dd2fzDC5TDl8KpWUh0gU7+/JjGrL9a19MSGIOALm5z7fXs5VXHit+rqxXTBnz43EEy 6bAuu4TW+sayWblmW8KdfTygyhCSzYvoS93Z1gI42rqbvA3DwMo07+1y2fEK2Sdi+dYK sDP0y+AYT+lJyA1SE0LAK8MGBAbFccq0iNsI8MFwHrM4VDudz2gSr9hVrcXqatHOdkrN 1PfcjftqYULiK+vhkvAQxqJqQERFYAQADXPAeAOnfrVl+/hqqAaB3aFTvjRxQxWLKkrn UW62fbZN1kM7Fr/Abhtj4Byx5IJSmwGLhZ3+a2bcHkPKFWrQslOrFdx+rzve0FEyiDp5 +e8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Fjun7H7HFd6eJVLuHg+U86J15PDVhx/hGCMSiPgf2P0=; b=EY7fm7x2TZqegodT/S1qvPr9CR6IGiPkrsEn9LbHOT1KZCLez8+Ssh5RVugJE7G1YV KOutulLwumIZZnq4rK/KdsxmrfHxAaT7FdefLG+2Ew4rK144R/YmULtSZztzwlRq434u BwBQNnu8EGnqC7UlAVv6HB3mjeDN2ksksQf7GGI7E+1w18Wzu2IGkbVgbA9eIQARza9t ppJThI93JOBg0r144hHiGm9jQroVgVTFjQzebayQLftzcyIdeAEKKNx7xshKke7kO4aP rJS/a5MIZmSOlGu+GJP7iAaVFykjB0LN8cxIOtsdI+a+PCeyGITpLfNjZKnOAah8yTNB sYzA== X-Gm-Message-State: AOAM532tzXP+Vfs1zTutEHYwSSaoC1NQTXJLtH//OESkcKsrQl2x6MDS rwqzx4+fqdbgZNncH4HB0Wc= X-Google-Smtp-Source: ABdhPJztEpqDu7c0duU4BlEMnF97NCTUImWX4xTUQenIAQJSUD2GpIv4OSVa9Xt8JSMsGNu6LN6TTQ== X-Received: by 2002:a2e:5858:: with SMTP id x24mr11923571ljd.519.1643585879834; Sun, 30 Jan 2022 15:37:59 -0800 (PST) Received: from localhost.localdomain (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:37:59 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 19/21] ACPI: power: Switch to sys-off handler API Date: Mon, 31 Jan 2022 02:37:16 +0300 Message-Id: <20220130233718.21544-20-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Switch to sys-off API that replaces legacy pm_power_off callbacks. Signed-off-by: Dmitry Osipenko --- drivers/acpi/sleep.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index a60ff5dfed3a..e27ac5b4645b 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -47,19 +47,11 @@ static void acpi_sleep_tts_switch(u32 acpi_state) } } -static int tts_notify_reboot(struct notifier_block *this, - unsigned long code, void *x) +static void tts_reboot_prepare(struct reboot_prep_data *data) { acpi_sleep_tts_switch(ACPI_STATE_S5); - return NOTIFY_DONE; } -static struct notifier_block tts_notifier = { - .notifier_call = tts_notify_reboot, - .next = NULL, - .priority = 0, -}; - static int acpi_sleep_prepare(u32 acpi_state) { #ifdef CONFIG_ACPI_SLEEP @@ -1031,7 +1023,7 @@ static void acpi_sleep_hibernate_setup(void) static inline void acpi_sleep_hibernate_setup(void) {} #endif /* !CONFIG_HIBERNATION */ -static void acpi_power_off_prepare(void) +static void acpi_power_off_prepare(struct power_off_prep_data *data) { /* Prepare to power off the system */ acpi_sleep_prepare(ACPI_STATE_S5); @@ -1039,7 +1031,7 @@ static void acpi_power_off_prepare(void) acpi_os_wait_events_complete(); } -static void acpi_power_off(void) +static void acpi_power_off(struct power_off_data *data) { /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ pr_debug("%s called\n", __func__); @@ -1047,6 +1039,11 @@ static void acpi_power_off(void) acpi_enter_sleep_state(ACPI_STATE_S5); } +static struct sys_off_handler acpi_sys_off_handler = { + .power_off_priority = POWEROFF_PRIO_FIRMWARE, + .reboot_prepare_cb = tts_reboot_prepare, +}; + int __init acpi_sleep_init(void) { char supported[ACPI_S_STATE_COUNT * 3 + 1]; @@ -1063,8 +1060,8 @@ int __init acpi_sleep_init(void) if (acpi_sleep_state_supported(ACPI_STATE_S5)) { sleep_states[ACPI_STATE_S5] = 1; - pm_power_off_prepare = acpi_power_off_prepare; - pm_power_off = acpi_power_off; + acpi_sys_off_handler.power_off_cb = acpi_power_off; + acpi_sys_off_handler.power_off_prepare_cb = acpi_power_off_prepare; } else { acpi_no_s5 = true; } @@ -1080,6 +1077,6 @@ int __init acpi_sleep_init(void) * Register the tts_notifier to reboot notifier list so that the _TTS * object can also be evaluated when the system enters S5. */ - register_reboot_notifier(&tts_notifier); + register_sys_off_handler(&acpi_sys_off_handler); return 0; } From patchwork Sun Jan 30 23:37:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538371 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 9191AC433F5 for ; Sun, 30 Jan 2022 23:40:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357170AbiA3Xkm (ORCPT ); Sun, 30 Jan 2022 18:40:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357405AbiA3XiF (ORCPT ); Sun, 30 Jan 2022 18:38:05 -0500 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F6E1C061760; 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[109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.37.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:38:01 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 20/21] regulator: pfuze100: Use devm_register_sys_off_handler() Date: Mon, 31 Jan 2022 02:37:17 +0300 Message-Id: <20220130233718.21544-21-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Use devm_register_sys_off_handler() that replaces global pm_power_off_prepare variable and allows to register multiple power-off handlers. Acked-by: Mark Brown Signed-off-by: Dmitry Osipenko --- drivers/regulator/pfuze100-regulator.c | 38 ++++++++++---------------- 1 file changed, 14 insertions(+), 24 deletions(-) diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index d60d7d1b7fa2..2eca8d43a097 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -76,6 +77,7 @@ struct pfuze_chip { struct pfuze_regulator regulator_descs[PFUZE100_MAX_REGULATOR]; struct regulator_dev *regulators[PFUZE100_MAX_REGULATOR]; struct pfuze_regulator *pfuze_regulators; + struct sys_off_handler sys_off; }; static const int pfuze100_swbst[] = { @@ -569,10 +571,10 @@ static inline struct device_node *match_of_node(int index) return pfuze_matches[index].of_node; } -static struct pfuze_chip *syspm_pfuze_chip; - -static void pfuze_power_off_prepare(void) +static void pfuze_power_off_prepare(struct power_off_prep_data *data) { + struct pfuze_chip *syspm_pfuze_chip = data->cb_data; + dev_info(syspm_pfuze_chip->dev, "Configure standby mode for power off"); /* Switch from default mode: APS/APS to APS/Off */ @@ -611,24 +613,23 @@ static void pfuze_power_off_prepare(void) static int pfuze_power_off_prepare_init(struct pfuze_chip *pfuze_chip) { + int err; + if (pfuze_chip->chip_id != PFUZE100) { dev_warn(pfuze_chip->dev, "Requested pm_power_off_prepare handler for not supported chip\n"); return -ENODEV; } - if (pm_power_off_prepare) { - dev_warn(pfuze_chip->dev, "pm_power_off_prepare is already registered.\n"); - return -EBUSY; - } + pfuze_chip->sys_off.power_off_prepare_cb = pfuze_power_off_prepare; + pfuze_chip->sys_off.cb_data = pfuze_chip; - if (syspm_pfuze_chip) { - dev_warn(pfuze_chip->dev, "syspm_pfuze_chip is already set.\n"); - return -EBUSY; + err = devm_register_sys_off_handler(pfuze_chip->dev, &pfuze_chip->sys_off); + if (err) { + dev_err(pfuze_chip->dev, + "failed to register sys-off handler: %d\n", err); + return err; } - syspm_pfuze_chip = pfuze_chip; - pm_power_off_prepare = pfuze_power_off_prepare; - return 0; } @@ -837,23 +838,12 @@ static int pfuze100_regulator_probe(struct i2c_client *client, return 0; } -static int pfuze100_regulator_remove(struct i2c_client *client) -{ - if (syspm_pfuze_chip) { - syspm_pfuze_chip = NULL; - pm_power_off_prepare = NULL; - } - - return 0; -} - static struct i2c_driver pfuze_driver = { .driver = { .name = "pfuze100-regulator", .of_match_table = pfuze_dt_ids, }, .probe = pfuze100_regulator_probe, - .remove = pfuze100_regulator_remove, }; module_i2c_driver(pfuze_driver); From patchwork Sun Jan 30 23:37:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 538370 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 268AEC433F5 for ; Sun, 30 Jan 2022 23:40:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357255AbiA3Xkr (ORCPT ); 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[109.252.138.126]) by smtp.gmail.com with ESMTPSA id a24sm1262950ljp.112.2022.01.30.15.38.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Jan 2022 15:38:03 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , =?utf-8?b?TWljaGHFgiBNaXJv?= =?utf-8?b?c8WCYXc=?= Cc: linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v6 21/21] reboot: Remove pm_power_off_prepare() Date: Mon, 31 Jan 2022 02:37:18 +0300 Message-Id: <20220130233718.21544-22-digetx@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220130233718.21544-1-digetx@gmail.com> References: <20220130233718.21544-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org All pm_power_off_prepare() users were converted to sys-off handler API. Remove the obsolete callback. Signed-off-by: Dmitry Osipenko --- include/linux/pm.h | 1 - kernel/reboot.c | 11 ----------- 2 files changed, 12 deletions(-) diff --git a/include/linux/pm.h b/include/linux/pm.h index f7d2be686359..62879bfc4b8e 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -21,7 +21,6 @@ * Callbacks for platform drivers to implement. */ extern void (*pm_power_off)(void); -extern void (*pm_power_off_prepare)(void); struct device; /* we have a circular dep with device.h */ #ifdef CONFIG_VT_CONSOLE_SLEEP diff --git a/kernel/reboot.c b/kernel/reboot.c index 1ae5ba86b150..6e0d4deda987 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -48,13 +48,6 @@ int reboot_cpu; enum reboot_type reboot_type = BOOT_ACPI; int reboot_force; -/* - * If set, this is used for preparing the system to power off. - */ - -void (*pm_power_off_prepare)(void); -EXPORT_SYMBOL_GPL(pm_power_off_prepare); - /** * emergency_restart - reboot the system * @@ -828,10 +821,6 @@ void do_kernel_power_off(void) static void do_kernel_power_off_prepare(void) { - /* legacy pm_power_off_prepare() is unchained and has highest priority */ - if (pm_power_off_prepare) - return pm_power_off_prepare(); - blocking_notifier_call_chain(&power_off_handler_list, POWEROFF_PREPARE, NULL); }