From patchwork Wed Dec 19 22:46:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinan Kaya X-Patchwork-Id: 10738251 X-Patchwork-Delegate: rjw@sisk.pl Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DEF146C2 for ; Wed, 19 Dec 2018 22:47:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CE3AF286B5 for ; Wed, 19 Dec 2018 22:47:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C1B6E286C1; Wed, 19 Dec 2018 22:47:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 66298286B5 for ; Wed, 19 Dec 2018 22:47:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727666AbeLSWrG (ORCPT ); Wed, 19 Dec 2018 17:47:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:59648 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726716AbeLSWrF (ORCPT ); Wed, 19 Dec 2018 17:47:05 -0500 Received: from sinanubuntu1604.mkjiurmyylmellclgttazegk5f.bx.internal.cloudapp.net (unknown [13.90.192.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B89A320989; Wed, 19 Dec 2018 22:47:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545259625; bh=EUbhE/YcdveFWA/H0DNlItLQED6C7iZa/IkBsguCgnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ruv8JaTnjYFR9ZEUdED4cJGOrVlEG6iUGwgtNCUxdbFJ8R86yhmGXKjykTWNmoSxH 6zwKjSFOEw3AHzteggTuCr8LDEO0Js8f5vbOA2jnY5ySu/f4DzNQEvosPTzli9vrXv Gyj7Y+JaPnvyqbp8xFISBhkI2NoNBx7Vbt/wFQg8= From: Sinan Kaya To: linux-acpi@vger.kernel.org Cc: Sinan Kaya , "Rafael J. Wysocki" , Len Brown , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v12 1/7] ACPI: Move PCI reset to a separate function Date: Wed, 19 Dec 2018 22:46:53 +0000 Message-Id: <20181219224659.4802-2-okaya@kernel.org> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181219224659.4802-1-okaya@kernel.org> References: <20181219224659.4802-1-okaya@kernel.org> MIME-Version: 1.0 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Getting ready to factor out PCI specific code when CONFIG_PCI is unset. Create a acpi_pci_reset() that kick starts PCI specific reset. Signed-off-by: Sinan Kaya --- drivers/acpi/reboot.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index 6fa9c2a4cfe9..d642a9dede52 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -4,11 +4,27 @@ #include #include +static void acpi_pci_reboot(struct acpi_generic_address *rr, u8 reset_value) +{ + unsigned int devfn; + struct pci_bus *bus0; + + /* The reset register can only live on bus 0. */ + bus0 = pci_find_bus(0, 0); + if (!bus0) + return; + /* Form PCI device/function pair. */ + devfn = PCI_DEVFN((rr->address >> 32) & 0xffff, + (rr->address >> 16) & 0xffff); + pr_debug("Resetting with ACPI PCI RESET_REG.\n"); + /* Write the value that resets us. */ + pci_bus_write_config_byte(bus0, devfn, + (rr->address & 0xffff), reset_value); +} + void acpi_reboot(void) { struct acpi_generic_address *rr; - struct pci_bus *bus0; - unsigned int devfn; u8 reset_value; if (acpi_disabled) @@ -33,17 +49,7 @@ void acpi_reboot(void) * on a device on bus 0. */ switch (rr->space_id) { case ACPI_ADR_SPACE_PCI_CONFIG: - /* The reset register can only live on bus 0. */ - bus0 = pci_find_bus(0, 0); - if (!bus0) - return; - /* Form PCI device/function pair. */ - devfn = PCI_DEVFN((rr->address >> 32) & 0xffff, - (rr->address >> 16) & 0xffff); - printk(KERN_DEBUG "Resetting with ACPI PCI RESET_REG.\n"); - /* Write the value that resets us. */ - pci_bus_write_config_byte(bus0, devfn, - (rr->address & 0xffff), reset_value); + acpi_pci_reboot(rr, reset_value); break; case ACPI_ADR_SPACE_SYSTEM_MEMORY: