From patchwork Thu May 21 12:59:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Pieralisi X-Patchwork-Id: 11562871 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C13E41391 for ; Thu, 21 May 2020 13:00:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B3F4720890 for ; Thu, 21 May 2020 13:00:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729054AbgEUNA0 (ORCPT ); Thu, 21 May 2020 09:00:26 -0400 Received: from foss.arm.com ([217.140.110.172]:46048 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726762AbgEUNAZ (ORCPT ); Thu, 21 May 2020 09:00:25 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0FA8A1063; Thu, 21 May 2020 06:00:25 -0700 (PDT) Received: from red-moon.arm.com (unknown [10.57.29.145]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8EAC63F305; Thu, 21 May 2020 06:00:22 -0700 (PDT) From: Lorenzo Pieralisi To: linux-arm-kernel@lists.infradead.org Cc: Lorenzo Pieralisi , Will Deacon , Hanjun Guo , Sudeep Holla , Catalin Marinas , Robin Murphy , "Rafael J. Wysocki" , iommu@lists.linux-foundation.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, Rob Herring , Joerg Roedel , Bjorn Helgaas , Marc Zyngier , Makarand Pawagi , Diana Craciun , Laurentiu Tudor Subject: [PATCH 03/12] ACPI/IORT: Make iort_msi_map_rid() PCI agnostic Date: Thu, 21 May 2020 13:59:59 +0100 Message-Id: <20200521130008.8266-4-lorenzo.pieralisi@arm.com> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200521130008.8266-1-lorenzo.pieralisi@arm.com> References: <20200521130008.8266-1-lorenzo.pieralisi@arm.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org There is nothing PCI specific in iort_msi_map_rid(). Make it a generic function, iort_msi_map_id() and provide a stub for iort_msi_map_rid() on top of it to keep current users unchanged. Signed-off-by: Lorenzo Pieralisi Cc: Will Deacon Cc: Hanjun Guo Cc: Sudeep Holla Cc: Catalin Marinas Cc: Robin Murphy Cc: "Rafael J. Wysocki" --- drivers/acpi/arm64/iort.c | 12 ++++++------ include/linux/acpi_iort.h | 12 ++++++++++-- 2 files changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 8f2a961c1364..f346a785e0b5 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -585,22 +585,22 @@ static struct acpi_iort_node *iort_find_dev_node(struct device *dev) } /** - * iort_msi_map_rid() - Map a MSI requester ID for a device + * iort_msi_map_id() - Map a MSI input ID for a device * @dev: The device for which the mapping is to be done. - * @req_id: The device requester ID. + * @input_id: The device input ID. * - * Returns: mapped MSI RID on success, input requester ID otherwise + * Returns: mapped MSI ID on success, input ID otherwise */ -u32 iort_msi_map_rid(struct device *dev, u32 req_id) +u32 iort_msi_map_id(struct device *dev, u32 input_id) { struct acpi_iort_node *node; u32 dev_id; node = iort_find_dev_node(dev); if (!node) - return req_id; + return input_id; - iort_node_map_id(node, req_id, &dev_id, IORT_MSI_TYPE); + iort_node_map_id(node, input_id, &dev_id, IORT_MSI_TYPE); return dev_id; } diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index 08ec6bd2297f..8c71f92b92ef 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -28,7 +28,11 @@ void iort_deregister_domain_token(int trans_id); struct fwnode_handle *iort_find_domain_token(int trans_id); #ifdef CONFIG_ACPI_IORT void acpi_iort_init(void); -u32 iort_msi_map_rid(struct device *dev, u32 req_id); +u32 iort_msi_map_id(struct device *dev, u32 id); +static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id) +{ + return iort_msi_map_id(dev, req_id); +} struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, enum irq_domain_bus_token bus_token); void acpi_configure_pmsi_domain(struct device *dev); @@ -39,8 +43,12 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev); int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); #else static inline void acpi_iort_init(void) { } +static inline u32 iort_msi_map_id(struct device *dev, u32 id) +{ return id; } static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id) -{ return req_id; } +{ + return iort_msi_map_id(dev, req_id); +} static inline struct irq_domain *iort_get_device_domain( struct device *dev, u32 id, enum irq_domain_bus_token bus_token) { return NULL; }