Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755046AbbGYINE (ORCPT ); Sat, 25 Jul 2015 04:13:04 -0400 Received: from mail-pa0-f53.google.com ([209.85.220.53]:36682 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751001AbbGYIM5 (ORCPT ); Sat, 25 Jul 2015 04:12:57 -0400 Message-ID: <55B34500.50805@linaro.org> Date: Sat, 25 Jul 2015 16:12:48 +0800 From: Hanjun Guo User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Marc Zyngier , Bjorn Helgaas , Thomas Gleixner , Jiang Liu , Jason Cooper CC: Lorenzo Pieralisi , linux-pci@vger.kernel.org, Duc Dang , linux-kernel@vger.kernel.org, Yijing Wang , linux-arm-kernel@lists.infradead.org, Ma Jun Subject: Re: [PATCH v5 03/19] device core: Introduce per-device MSI domain pointer References: <1437643598-19795-1-git-send-email-marc.zyngier@arm.com> <1437643598-19795-4-git-send-email-marc.zyngier@arm.com> In-Reply-To: <1437643598-19795-4-git-send-email-marc.zyngier@arm.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2182 Lines: 67 On 07/23/2015 05:26 PM, Marc Zyngier wrote: > 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 22227e7..7c49b48 100644 > --- a/include/linux/device.h > +++ b/include/linux/device.h > @@ -714,6 +714,7 @@ struct device_dma_parameters { > * @pins: For device pin management. > * See Documentation/pinctrl.txt for details. > * @msi_list: Hosts MSI descriptors > + * @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 > @@ -774,6 +775,9 @@ 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 > @@ -864,6 +868,22 @@ 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; Reviewed-by: Hanjun Guo Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/