From: Bjorn Helgaas <helgaas@kernel.org> To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: linux-arm-kernel@lists.infradead.org, Will Deacon <will@kernel.org>, Hanjun Guo <guohanjun@huawei.com>, Bjorn Helgaas <bhelgaas@google.com>, Sudeep Holla <sudeep.holla@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Robin Murphy <robin.murphy@arm.com>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Marc Zyngier <maz@kernel.org>, iommu@lists.linux-foundation.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, Rob Herring <robh+dt@kernel.org>, Joerg Roedel <joro@8bytes.org>, Makarand Pawagi <makarand.pawagi@nxp.com>, Diana Craciun <diana.craciun@oss.nxp.com>, Laurentiu Tudor <laurentiu.tudor@nxp.com> Subject: Re: [PATCH 02/12] ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic Date: Thu, 21 May 2020 14:56:44 -0500 Message-ID: <20200521195644.GA1171134@bjorn-Precision-5520> (raw) In-Reply-To: <20200521130008.8266-3-lorenzo.pieralisi@arm.com> On Thu, May 21, 2020 at 01:59:58PM +0100, Lorenzo Pieralisi wrote: > iort_get_device_domain() is PCI specific but it need not be, > since it can be used to retrieve IRQ domain nexus of any kind > by adding an irq_domain_bus_token input to it. > > Make it PCI agnostic by also renaming the requestor ID input > to a more generic ID name. > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > Cc: Will Deacon <will@kernel.org> > Cc: Hanjun Guo <guohanjun@huawei.com> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Sudeep Holla <sudeep.holla@arm.com> > Cc: Catalin Marinas <catalin.marinas@arm.com> > Cc: Robin Murphy <robin.murphy@arm.com> > Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> > Cc: Marc Zyngier <maz@kernel.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci/msi.c > --- > drivers/acpi/arm64/iort.c | 14 +++++++------- > drivers/pci/msi.c | 3 ++- > include/linux/acpi_iort.h | 7 ++++--- > 3 files changed, 13 insertions(+), 11 deletions(-) > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c > index 7cfd77b5e6e8..8f2a961c1364 100644 > --- a/drivers/acpi/arm64/iort.c > +++ b/drivers/acpi/arm64/iort.c > @@ -567,7 +567,6 @@ static struct acpi_iort_node *iort_find_dev_node(struct device *dev) > node = iort_get_iort_node(dev->fwnode); > if (node) > return node; > - > /* > * if not, then it should be a platform device defined in > * DSDT/SSDT (with Named Component node in IORT) > @@ -658,13 +657,13 @@ static int __maybe_unused iort_find_its_base(u32 its_id, phys_addr_t *base) > /** > * iort_dev_find_its_id() - Find the ITS identifier for a device > * @dev: The device. > - * @req_id: Device's requester ID > + * @id: Device's ID > * @idx: Index of the ITS identifier list. > * @its_id: ITS identifier. > * > * Returns: 0 on success, appropriate error value otherwise > */ > -static int iort_dev_find_its_id(struct device *dev, u32 req_id, > +static int iort_dev_find_its_id(struct device *dev, u32 id, > unsigned int idx, int *its_id) > { > struct acpi_iort_its_group *its; > @@ -674,7 +673,7 @@ static int iort_dev_find_its_id(struct device *dev, u32 req_id, > if (!node) > return -ENXIO; > > - node = iort_node_map_id(node, req_id, NULL, IORT_MSI_TYPE); > + node = iort_node_map_id(node, id, NULL, IORT_MSI_TYPE); > if (!node) > return -ENXIO; > > @@ -697,19 +696,20 @@ static int iort_dev_find_its_id(struct device *dev, u32 req_id, > * > * Returns: the MSI domain for this device, NULL otherwise > */ > -struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id) > +struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, > + enum irq_domain_bus_token bus_token) > { > struct fwnode_handle *handle; > int its_id; > > - if (iort_dev_find_its_id(dev, req_id, 0, &its_id)) > + if (iort_dev_find_its_id(dev, id, 0, &its_id)) > return NULL; > > handle = iort_find_domain_token(its_id); > if (!handle) > return NULL; > > - return irq_find_matching_fwnode(handle, DOMAIN_BUS_PCI_MSI); > + return irq_find_matching_fwnode(handle, bus_token); > } > > static void iort_set_device_domain(struct device *dev, > diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c > index 6b43a5455c7a..74a91f52ecc0 100644 > --- a/drivers/pci/msi.c > +++ b/drivers/pci/msi.c > @@ -1558,7 +1558,8 @@ struct irq_domain *pci_msi_get_device_domain(struct pci_dev *pdev) > pci_for_each_dma_alias(pdev, get_msi_id_cb, &rid); > dom = of_msi_map_get_device_domain(&pdev->dev, rid); > if (!dom) > - dom = iort_get_device_domain(&pdev->dev, rid); > + dom = iort_get_device_domain(&pdev->dev, rid, > + DOMAIN_BUS_PCI_MSI); > return dom; > } > #endif /* CONFIG_PCI_MSI_IRQ_DOMAIN */ > diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h > index 8e7e2ec37f1b..08ec6bd2297f 100644 > --- a/include/linux/acpi_iort.h > +++ b/include/linux/acpi_iort.h > @@ -29,7 +29,8 @@ 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); > -struct irq_domain *iort_get_device_domain(struct device *dev, u32 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); > int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); > /* IOMMU interface */ > @@ -40,8 +41,8 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); > static inline void acpi_iort_init(void) { } > static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id) > { return req_id; } > -static inline struct irq_domain *iort_get_device_domain(struct device *dev, > - u32 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; } > static inline void acpi_configure_pmsi_domain(struct device *dev) { } > /* IOMMU interface */ > -- > 2.26.1 >
next prev parent reply index Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-21 12:59 [PATCH 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi 2020-05-21 12:59 ` [PATCH 01/12] ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC Lorenzo Pieralisi 2020-05-21 12:59 ` [PATCH 02/12] ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic Lorenzo Pieralisi 2020-05-21 19:56 ` Bjorn Helgaas [this message] 2020-05-21 12:59 ` [PATCH 03/12] ACPI/IORT: Make iort_msi_map_rid() PCI agnostic Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 04/12] ACPI/IORT: Remove useless PCI bus walk Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 05/12] ACPI/IORT: Add an input ID to acpi_dma_configure() Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 06/12] of/iommu: Make of_map_rid() PCI agnostic Lorenzo Pieralisi 2020-05-21 22:47 ` Rob Herring 2020-06-04 14:27 ` Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 07/12] of/device: Add input id to of_dma_configure() Lorenzo Pieralisi 2020-05-21 23:02 ` Rob Herring 2020-06-04 14:49 ` Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 08/12] of/irq: make of_msi_map_get_device_domain() bus agnostic Lorenzo Pieralisi 2020-05-21 19:57 ` Bjorn Helgaas 2020-05-21 13:00 ` [PATCH 09/12] dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus Lorenzo Pieralisi 2020-05-21 23:10 ` Rob Herring 2020-05-22 9:42 ` Robin Murphy 2020-05-22 9:57 ` Diana Craciun OSS 2020-05-22 14:08 ` Rob Herring 2020-05-22 14:34 ` Robin Murphy 2020-05-22 14:02 ` Rob Herring 2020-05-22 15:38 ` Laurentiu Tudor 2020-05-21 13:00 ` [PATCH 10/12] of/irq: Make of_msi_map_rid() PCI bus agnostic Lorenzo Pieralisi 2020-05-21 23:17 ` Rob Herring 2020-06-04 15:08 ` Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 11/12] bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver Lorenzo Pieralisi 2020-05-21 13:00 ` [PATCH 12/12] bus: fsl-mc: Add ACPI support for fsl-mc Lorenzo Pieralisi 2020-05-21 15:03 ` Laurentiu Tudor 2020-05-22 5:32 ` Makarand Pawagi 2020-05-22 9:53 ` Lorenzo Pieralisi 2020-06-19 8:20 ` [PATCH v2 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi 2020-06-19 8:20 ` [PATCH v2 01/12] ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC Lorenzo Pieralisi 2020-06-29 4:24 ` Hanjun Guo 2020-06-29 9:05 ` Lorenzo Pieralisi 2020-06-30 3:06 ` Hanjun Guo 2020-06-30 10:24 ` Lorenzo Pieralisi 2020-06-30 13:04 ` Hanjun Guo 2020-07-01 16:12 ` Robin Murphy 2020-07-02 8:22 ` Hanjun Guo 2020-07-09 9:21 ` Lorenzo Pieralisi 2020-07-09 12:48 ` Hanjun Guo 2020-08-18 0:49 ` Hanjun Guo 2020-06-19 8:20 ` [PATCH v2 02/12] ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic Lorenzo Pieralisi 2020-06-19 8:20 ` [PATCH v2 03/12] ACPI/IORT: Make iort_msi_map_rid() PCI agnostic Lorenzo Pieralisi 2020-07-15 9:15 ` Lorenzo Pieralisi 2020-07-21 14:59 ` Bjorn Helgaas 2020-07-27 6:06 ` [EXT] " Makarand Pawagi 2020-06-19 8:20 ` [PATCH v2 04/12] ACPI/IORT: Remove useless PCI bus walk Lorenzo Pieralisi 2020-06-19 8:20 ` [PATCH v2 05/12] ACPI/IORT: Add an input ID to acpi_dma_configure() Lorenzo Pieralisi 2020-07-09 9:35 ` Lorenzo Pieralisi 2020-07-15 9:13 ` Lorenzo Pieralisi 2020-07-28 12:48 ` Lorenzo Pieralisi 2020-07-28 13:00 ` Rafael J. Wysocki 2020-06-19 8:20 ` [PATCH v2 06/12] of/iommu: Make of_map_rid() PCI agnostic Lorenzo Pieralisi 2020-06-22 13:26 ` Joerg Roedel 2020-07-13 23:57 ` Rob Herring 2020-06-19 8:20 ` [PATCH v2 07/12] of/device: Add input id to of_dma_configure() Lorenzo Pieralisi 2020-06-30 21:50 ` Rob Herring 2020-06-19 8:20 ` [PATCH v2 08/12] dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus Lorenzo Pieralisi 2020-06-30 21:55 ` Rob Herring 2020-06-19 8:20 ` [PATCH v2 09/12] of/irq: make of_msi_map_get_device_domain() bus agnostic Lorenzo Pieralisi 2020-06-30 21:50 ` Rob Herring 2020-06-19 8:20 ` [PATCH v2 10/12] of/irq: Make of_msi_map_rid() PCI " Lorenzo Pieralisi 2020-06-30 21:56 ` Rob Herring 2020-06-19 8:20 ` [PATCH v2 11/12] bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver Lorenzo Pieralisi 2020-07-15 13:05 ` Marc Zyngier 2020-06-19 8:20 ` [PATCH v2 12/12] bus: fsl-mc: Add ACPI support for fsl-mc Lorenzo Pieralisi 2020-07-01 16:55 ` Laurentiu Tudor 2020-07-09 9:19 ` Lorenzo Pieralisi 2020-07-09 9:26 ` [EXT] " Makarand Pawagi 2020-07-09 10:14 ` Laurentiu Tudor 2020-07-09 10:37 ` Makarand Pawagi 2020-07-09 10:39 ` Laurentiu Tudor 2020-07-09 10:47 ` Diana Craciun OSS 2020-07-09 10:52 ` Makarand Pawagi 2020-07-15 10:06 ` Lorenzo Pieralisi 2020-07-16 3:23 ` Makarand Pawagi 2020-07-16 7:57 ` Marc Zyngier 2020-07-20 16:54 ` [PATCH v2 00/12] ACPI/OF: Upgrade MSI/IOMMU ID mapping APIs Lorenzo Pieralisi 2020-07-21 4:28 ` [EXT] " Makarand Pawagi 2020-07-28 17:01 ` Catalin Marinas
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