From nobody Fri Apr 17 12:14:16 2026 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 D26FBC4332F for ; Thu, 17 Nov 2022 15:09:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234920AbiKQPJA (ORCPT ); Thu, 17 Nov 2022 10:09:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239931AbiKQPIW (ORCPT ); Thu, 17 Nov 2022 10:08:22 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 639C3769D1; Thu, 17 Nov 2022 07:08:03 -0800 (PST) Date: Thu, 17 Nov 2022 15:08:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1668697682; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=j2kBJebQj7kIYpQvHl0FnIhQc0TUB05J3PiocqV+L+k=; b=JdO0xiH8aU60GSUSfRpO1N3pJ4segIpRWv7ic3+gPWOJj/g4RwR3d76m9np0GGuTST6FUH 4rINq0y7CpmOPqtufir8u0bRH4e/ZSs0wfarFMlTfgVZ10zimadsrEmaeA7tt7ee2n460e iyfqhS7yWO/Wwb/agW/T1TMIgTJuRQJVKt4hF2379Ewfbapb3g1I8hj2O+8YAEGHPnT/s2 hk5Q5TZZSlLc+IJ2pAeqMECCQO9bjxZ4DZjnTWeYDsiEgqIQ7SgQfQ5QVZFr0ef6ZTMHlj Nqom3EiwgP/qcL3XfBWUxB5EcmGc6O5LTSDPmBzarFGR+9bF4lTD+vgUAlSR2g== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1668697682; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=j2kBJebQj7kIYpQvHl0FnIhQc0TUB05J3PiocqV+L+k=; b=3KeZgJq+UDYBTy/jKfciyZo72khebD9uAzeV/216vtoz4wG4uB9gj+b4OyKejHDEhpxZIh QO11fxfsF5jOxyAw== From: "tip-bot2 for Ahmed S. Darwish" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: irq/core] PCI/MSI: Move pci_msi_restore_state() to api.c Cc: "Ahmed S. Darwish" , Thomas Gleixner , Bjorn Helgaas , x86@kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org In-Reply-To: <20221111122015.331584998@linutronix.de> References: <20221111122015.331584998@linutronix.de> MIME-Version: 1.0 Message-ID: <166869768083.4906.11598878615645361438.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the irq/core branch of tip: Commit-ID: 57127da98bc87688324cc2d29927b340d7754701 Gitweb: https://git.kernel.org/tip/57127da98bc87688324cc2d29927b340d= 7754701 Author: Ahmed S. Darwish AuthorDate: Fri, 11 Nov 2022 14:55:03 +01:00 Committer: Thomas Gleixner CommitterDate: Thu, 17 Nov 2022 15:15:21 +01:00 PCI/MSI: Move pci_msi_restore_state() to api.c To disentangle the maze in msi.c, all exported device-driver MSI APIs are now to be grouped in one file, api.c. =20 Move pci_msi_enabled() and add kernel-doc for the function. Signed-off-by: Ahmed S. Darwish Signed-off-by: Thomas Gleixner Acked-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20221111122015.331584998@linutronix.de --- drivers/pci/msi/api.c | 15 +++++++++++++++ drivers/pci/msi/msi.c | 11 ++--------- drivers/pci/msi/msi.h | 2 ++ 3 files changed, 19 insertions(+), 9 deletions(-) diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c index 49ae3a3..6c3ad48 100644 --- a/drivers/pci/msi/api.c +++ b/drivers/pci/msi/api.c @@ -309,6 +309,21 @@ void pci_free_irq_vectors(struct pci_dev *dev) EXPORT_SYMBOL(pci_free_irq_vectors); =20 /** + * pci_restore_msi_state() - Restore cached MSI(-X) state on device + * @dev: the PCI device to operate on + * + * Write the Linux-cached MSI(-X) state back on device. This is + * typically useful upon system resume, or after an error-recovery PCI + * adapter reset. + */ +void pci_restore_msi_state(struct pci_dev *dev) +{ + __pci_restore_msi_state(dev); + __pci_restore_msix_state(dev); +} +EXPORT_SYMBOL_GPL(pci_restore_msi_state); + +/** * pci_msi_enabled() - Are MSI(-X) interrupts enabled system-wide? * * Return: true if MSI has not been globally disabled through ACPI FADT, diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c index 59c33bc..a5d168c 100644 --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -199,7 +199,7 @@ bool __weak arch_restore_msi_irqs(struct pci_dev *dev) return true; } =20 -static void __pci_restore_msi_state(struct pci_dev *dev) +void __pci_restore_msi_state(struct pci_dev *dev) { struct msi_desc *entry; u16 control; @@ -231,7 +231,7 @@ static void pci_msix_clear_and_set_ctrl(struct pci_dev = *dev, u16 clear, u16 set) pci_write_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS, ctrl); } =20 -static void __pci_restore_msix_state(struct pci_dev *dev) +void __pci_restore_msix_state(struct pci_dev *dev) { struct msi_desc *entry; bool write_msg; @@ -257,13 +257,6 @@ static void __pci_restore_msix_state(struct pci_dev *d= ev) pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL, 0); } =20 -void pci_restore_msi_state(struct pci_dev *dev) -{ - __pci_restore_msi_state(dev); - __pci_restore_msix_state(dev); -} -EXPORT_SYMBOL_GPL(pci_restore_msi_state); - static void pcim_msi_release(void *pcidev) { struct pci_dev *dev =3D pcidev; diff --git a/drivers/pci/msi/msi.h b/drivers/pci/msi/msi.h index f3f4ede..8170ef2 100644 --- a/drivers/pci/msi/msi.h +++ b/drivers/pci/msi/msi.h @@ -94,6 +94,8 @@ void pci_free_msi_irqs(struct pci_dev *dev); int __pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec, st= ruct irq_affinity *affd); int __pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entrie= s, int minvec, int maxvec, struct irq_affinity *affd, int flags); +void __pci_restore_msi_state(struct pci_dev *dev); +void __pci_restore_msix_state(struct pci_dev *dev); =20 /* Legacy (!IRQDOMAIN) fallbacks */