From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755316AbaLHUOA (ORCPT ); Mon, 8 Dec 2014 15:14:00 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:46532 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754622AbaLHUMd (ORCPT ); Mon, 8 Dec 2014 15:12:33 -0500 From: Marc Zyngier To: Bjorn Helgaas , Thomas Gleixner , Jiang Liu Cc: , , , Will Deacon , Yijing Wang , Suravee Suthikulpanit Subject: [PATCH 1/6] device core: Introduce per-device MSI domain pointer Date: Mon, 8 Dec 2014 20:12:18 +0000 Message-Id: <1418069543-21969-2-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1418069543-21969-1-git-send-email-marc.zyngier@arm.com> References: <1418069543-21969-1-git-send-email-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As MSI-type features are creeping into non-PCI devices, it is starting to make sense to give our struct device some form of support for this, by allowing a pointer to an MSI irq domain to be set/retrieved. Signed-off-by: Marc Zyngier --- include/linux/device.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index ce1f2160..f3aaaf6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -690,6 +690,7 @@ struct acpi_dev_node { * along with subsystem-level and driver-level callbacks. * @pins: For device pin management. * See Documentation/pinctrl.txt for details. + * @msi_domain: The generic MSI domain this device is using. * @numa_node: NUMA node this device is close to. * @dma_mask: Dma mask (if dma'ble device). * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all @@ -750,6 +751,9 @@ struct device { struct dev_pm_info power; struct dev_pm_domain *pm_domain; +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + struct irq_domain *msi_domain; /* MSI domain device uses */ +#endif #ifdef CONFIG_PINCTRL struct dev_pin_info *pins; #endif @@ -837,6 +841,22 @@ static inline void set_dev_node(struct device *dev, int node) } #endif +static inline struct irq_domain *dev_get_msi_domain(const struct device *dev) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + return dev->msi_domain; +#else + return NULL; +#endif +} + +static inline void dev_set_msi_domain(struct device *dev, struct irq_domain *d) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + dev->msi_domain = d; +#endif +} + static inline void *dev_get_drvdata(const struct device *dev) { return dev->driver_data; -- 2.1.3 From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Mon, 8 Dec 2014 20:12:18 +0000 Subject: [PATCH 1/6] device core: Introduce per-device MSI domain pointer In-Reply-To: <1418069543-21969-1-git-send-email-marc.zyngier@arm.com> References: <1418069543-21969-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1418069543-21969-2-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org As MSI-type features are creeping into non-PCI devices, it is starting to make sense to give our struct device some form of support for this, by allowing a pointer to an MSI irq domain to be set/retrieved. Signed-off-by: Marc Zyngier --- include/linux/device.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index ce1f2160..f3aaaf6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -690,6 +690,7 @@ struct acpi_dev_node { * along with subsystem-level and driver-level callbacks. * @pins: For device pin management. * See Documentation/pinctrl.txt for details. + * @msi_domain: The generic MSI domain this device is using. * @numa_node: NUMA node this device is close to. * @dma_mask: Dma mask (if dma'ble device). * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all @@ -750,6 +751,9 @@ struct device { struct dev_pm_info power; struct dev_pm_domain *pm_domain; +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + struct irq_domain *msi_domain; /* MSI domain device uses */ +#endif #ifdef CONFIG_PINCTRL struct dev_pin_info *pins; #endif @@ -837,6 +841,22 @@ static inline void set_dev_node(struct device *dev, int node) } #endif +static inline struct irq_domain *dev_get_msi_domain(const struct device *dev) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + return dev->msi_domain; +#else + return NULL; +#endif +} + +static inline void dev_set_msi_domain(struct device *dev, struct irq_domain *d) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + dev->msi_domain = d; +#endif +} + static inline void *dev_get_drvdata(const struct device *dev) { return dev->driver_data; -- 2.1.3