From patchwork Wed Jan 12 09:42:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stefan Roese X-Patchwork-Id: 12711078 X-Patchwork-Delegate: bhelgaas@google.com 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 74576C433FE for ; Wed, 12 Jan 2022 09:43:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237055AbiALJnB (ORCPT ); Wed, 12 Jan 2022 04:43:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238775AbiALJm7 (ORCPT ); Wed, 12 Jan 2022 04:42:59 -0500 Received: from mout-u-204.mailbox.org (mout-u-204.mailbox.org [IPv6:2001:67c:2050:1::465:204]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E88EC06173F for ; Wed, 12 Jan 2022 01:42:59 -0800 (PST) Received: from smtp202.mailbox.org (unknown [91.198.250.118]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-u-204.mailbox.org (Postfix) with ESMTPS id 4JYjKY0SpMzQlGd; Wed, 12 Jan 2022 10:42:57 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de From: Stefan Roese To: linux-pci@vger.kernel.org Cc: Bharat Kumar Gogada , Bjorn Helgaas , =?utf-8?q?Pali_Roh=C3=A1r?= , Michal Simek Subject: [RESEND PATCH v2 2/4] PCI: Add pci_check_platform_service_irqs Date: Wed, 12 Jan 2022 10:42:49 +0100 Message-Id: <20220112094251.1271531-2-sr@denx.de> In-Reply-To: <20220112094251.1271531-1-sr@denx.de> References: <20220112094251.1271531-1-sr@denx.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Bharat Kumar Gogada Adding method pci_check_platform_service_irqs to check if platform has registered method to proivde dedicated IRQ lines for PCIe services like AER. Signed-off-by: Bharat Kumar Gogada Signed-off-by: Stefan Roese Tested-by: Stefan Roese Cc: Bjorn Helgaas Cc: Pali Rohár Cc: Michal Simek --- include/linux/pci.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/pci.h b/include/linux/pci.h index 291eadade811..d6812d596ecc 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2420,6 +2420,24 @@ static inline bool pci_ari_enabled(struct pci_bus *bus) return bus->self && bus->self->ari_enabled; } +/** + * pci_check_platform_service_irqs - check platform service irq's + * @pdev: PCI Express device to check + * @irqs: Array of irqs to populate + * @mask: Bitmask of capabilities + */ +static inline void pci_check_platform_service_irqs(struct pci_dev *dev, + int *irqs, int mask) +{ + struct pci_host_bridge *bridge; + + if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) { + bridge = pci_find_host_bridge(dev->bus); + if (bridge && bridge->setup_platform_service_irq) + bridge->setup_platform_service_irq(bridge, irqs, mask); + } +} + /** * pci_is_thunderbolt_attached - whether device is on a Thunderbolt daisy chain * @pdev: PCI device to check