irqdomain/msi: Use fwnode instead of of_node

As we continue to push of_node towards the outskirts of irq domains,
let's start tackling the case of msi_create_irq_domain and its little
friends.

This has limited impact in both PCI/MSI, platform MSI, and a few
drivers.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Graeme Gregory <graeme@xora.org.uk>
Cc: Jake Oshins <jakeo@microsoft.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Link: http://lkml.kernel.org/r/1444737105-31573-17-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 134483d..5df4575 100644 (file)
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -152,7 +152,7 @@ static int platform_msi_alloc_descs(struct device *dev, int nvec,
 
 /**
  * platform_msi_create_irq_domain - Create a platform MSI interrupt domain
- * @np:                Optional device-tree node of the interrupt controller
+ * @fwnode:            Optional fwnode of the interrupt controller
  * @info:      MSI domain info
  * @parent:    Parent irq domain
  *
@@ -162,7 +162,7 @@ static int platform_msi_alloc_descs(struct device *dev, int nvec,
  * Returns:
  * A domain pointer or NULL in case of failure.
  */
-struct irq_domain *platform_msi_create_irq_domain(struct device_node *np,
+struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
                                                  struct msi_domain_info *info,
                                                  struct irq_domain *parent)
 {
@@ -173,7 +173,7 @@ struct irq_domain *platform_msi_create_irq_domain(struct device_node *np,
        if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
                platform_msi_update_chip_ops(info);
 
-       domain = msi_create_irq_domain(np, info, parent);
+       domain = msi_create_irq_domain(fwnode, info, parent);
        if (domain)
                domain->bus_token = DOMAIN_BUS_PLATFORM_MSI;
 

diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 3b88e17..bf9b3c0 100644 (file)
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -308,9 +308,10 @@ static int __init gicv2m_init_one(struct device_node *node,
 
        inner_domain->bus_token = DOMAIN_BUS_NEXUS;
        inner_domain->parent = parent;
-       pci_domain = pci_msi_create_irq_domain(node, &gicv2m_msi_domain_info,
+       pci_domain = pci_msi_create_irq_domain(of_node_to_fwnode(node),
+                                              &gicv2m_msi_domain_info,
                                               inner_domain);
-       plat_domain = platform_msi_create_irq_domain(node,
+       plat_domain = platform_msi_create_irq_domain(of_node_to_fwnode(node),
                                                     &gicv2m_pmsi_domain_info,
                                                     inner_domain);
        if (!pci_domain || !plat_domain) {

diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
index a7c8c9f..693c2f9 100644 (file)
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -125,7 +125,8 @@ static int __init its_pci_msi_init(void)
                        continue;
                }
 
-               if (!pci_msi_create_irq_domain(np, &its_pci_msi_domain_info,
+               if (!pci_msi_create_irq_domain(of_node_to_fwnode(np),
+                                              &its_pci_msi_domain_info,
                                               parent)) {
                        pr_err("%s: unable to create PCI domain\n",
                               np->full_name);

diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
index a865505..960a816 100644 (file)
--- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
@@ -78,7 +78,8 @@ static int __init its_pmsi_init(void)
                        continue;
                }
 
-               if (!platform_msi_create_irq_domain(np, &its_pmsi_domain_info,
+               if (!platform_msi_create_irq_domain(of_node_to_fwnode(np),
+                                                   &its_pmsi_domain_info,
                                                    parent)) {
                        pr_err("%s: unable to create platform domain\n",
                               np->full_name);

diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c
index e491681..a6456b5 100644 (file)
--- a/drivers/pci/host/pci-xgene-msi.c
+++ b/drivers/pci/host/pci-xgene-msi.c
@@ -256,7 +256,7 @@ static int xgene_allocate_domains(struct xgene_msi *msi)
        if (!msi->inner_domain)
                return -ENOMEM;
 
-       msi->msi_domain = pci_msi_create_irq_domain(msi->node,
+       msi->msi_domain = pci_msi_create_irq_domain(of_node_to_fwnode(msi->node),
                                                    &xgene_msi_domain_info,
                                                    msi->inner_domain);
 

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d449714..ddd59fe 100644 (file)
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1246,8 +1246,8 @@ static void pci_msi_domain_update_chip_ops(struct msi_domain_info *info)
 }
 
 /**
- * pci_msi_create_irq_domain - Creat a MSI interrupt domain
- * @node:      Optional device-tree node of the interrupt controller
+ * pci_msi_create_irq_domain - Create a MSI interrupt domain
+ * @fwnode:    Optional fwnode of the interrupt controller
  * @info:      MSI domain info
  * @parent:    Parent irq domain
  *
@@ -1256,7 +1256,7 @@ static void pci_msi_domain_update_chip_ops(struct msi_domain_info *info)
  * Returns:
  * A domain pointer or NULL in case of failure.
  */
-struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
+struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
                                             struct msi_domain_info *info,
                                             struct irq_domain *parent)
 {
@@ -1267,7 +1267,7 @@ struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
        if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
                pci_msi_domain_update_chip_ops(info);
 
-       domain = msi_create_irq_domain(node, info, parent);
+       domain = msi_create_irq_domain(fwnode, info, parent);
        if (!domain)
                return NULL;
 
@@ -1303,14 +1303,14 @@ void pci_msi_domain_free_irqs(struct irq_domain *domain, struct pci_dev *dev)
 
 /**
  * pci_msi_create_default_irq_domain - Create a default MSI interrupt domain
- * @node:      Optional device-tree node of the interrupt controller
+ * @fwnode:    Optional fwnode of the interrupt controller
  * @info:      MSI domain info
  * @parent:    Parent irq domain
  *
  * Returns: A domain pointer or NULL in case of failure. If successful
  * the default PCI/MSI irqdomain pointer is updated.
  */
-struct irq_domain *pci_msi_create_default_irq_domain(struct device_node *node,
+struct irq_domain *pci_msi_create_default_irq_domain(struct fwnode_handle *fwnode,
                struct msi_domain_info *info, struct irq_domain *parent)
 {
        struct irq_domain *domain;
@@ -1320,7 +1320,7 @@ struct irq_domain *pci_msi_create_default_irq_domain(struct device_node *node,
                pr_err("PCI: default irq domain for PCI MSI has already been created.\n");
                domain = NULL;
        } else {
-               domain = pci_msi_create_irq_domain(node, info, parent);
+               domain = pci_msi_create_irq_domain(fwnode, info, parent);
                pci_msi_default_domain = domain;
        }
        mutex_unlock(&pci_msi_domain_lock);

diff --git a/include/linux/msi.h b/include/linux/msi.h
index ad939d0..32a24b9 100644 (file)
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -174,6 +174,7 @@ struct msi_controller {
 struct irq_domain;
 struct irq_chip;
 struct device_node;
+struct fwnode_handle;
 struct msi_domain_info;
 
 /**
@@ -262,7 +263,7 @@ enum {
 int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
                            bool force);
 
-struct irq_domain *msi_create_irq_domain(struct device_node *of_node,
+struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
                                         struct msi_domain_info *info,
                                         struct irq_domain *parent);
 int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
@@ -270,7 +271,7 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
 void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev);
 struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain);
 
-struct irq_domain *platform_msi_create_irq_domain(struct device_node *np,
+struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
                                                  struct msi_domain_info *info,
                                                  struct irq_domain *parent);
 int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
@@ -280,13 +281,13 @@ void platform_msi_domain_free_irqs(struct device *dev);
 
 #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
 void pci_msi_domain_write_msg(struct irq_data *irq_data, struct msi_msg *msg);
-struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
+struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
                                             struct msi_domain_info *info,
                                             struct irq_domain *parent);
 int pci_msi_domain_alloc_irqs(struct irq_domain *domain, struct pci_dev *dev,
                              int nvec, int type);
 void pci_msi_domain_free_irqs(struct irq_domain *domain, struct pci_dev *dev);
-struct irq_domain *pci_msi_create_default_irq_domain(struct device_node *node,
+struct irq_domain *pci_msi_create_default_irq_domain(struct fwnode_handle *fwnode,
                 struct msi_domain_info *info, struct irq_domain *parent);
 
 irq_hw_number_t pci_msi_domain_calc_hwirq(struct pci_dev *dev,

diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 7e6512b..95354bb 100644 (file)
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -239,11 +239,11 @@ static void msi_domain_update_chip_ops(struct msi_domain_info *info)
 
 /**
  * msi_create_irq_domain - Create a MSI interrupt domain
- * @of_node:   Optional device-tree node of the interrupt controller
+ * @fwnode:    Optional fwnode of the interrupt controller
  * @info:      MSI domain info
  * @parent:    Parent irq domain
  */
-struct irq_domain *msi_create_irq_domain(struct device_node *node,
+struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
                                         struct msi_domain_info *info,
                                         struct irq_domain *parent)
 {
@@ -252,8 +252,8 @@ struct irq_domain *msi_create_irq_domain(struct device_node *node,
        if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
                msi_domain_update_chip_ops(info);
 
-       return irq_domain_add_hierarchy(parent, 0, 0, node, &msi_domain_ops,
-                                       info);
+       return irq_domain_create_hierarchy(parent, 0, 0, fwnode,
+                                          &msi_domain_ops, info);
 }
 
 /**