From 5059625ed8862e897760b86effff0f8a35989c0d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 27 Aug 2008 04:22:37 -0700 Subject: [PATCH] sparc: Add OF archdata propagation helper. Add a helper function that, given a bus of_device node, propagates all iommu, stc, and host_controller values down to the child nodes. Signed-off-by: David S. Miller --- arch/sparc/include/asm/of_device.h | 2 ++ arch/sparc/kernel/of_device.c | 22 ++++++++++++++++++++++ arch/sparc64/kernel/of_device.c | 22 ++++++++++++++++++++++ 3 files changed, 46 insertions(+) diff --git a/arch/sparc/include/asm/of_device.h b/arch/sparc/include/asm/of_device.h index bba777a416d3..a5d9811f9697 100644 --- a/arch/sparc/include/asm/of_device.h +++ b/arch/sparc/include/asm/of_device.h @@ -30,6 +30,8 @@ struct of_device extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name); extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size); +extern void of_propagate_archdata(struct of_device *bus); + /* This is just here during the transition */ #include diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c index aace71f7d6e5..8fdc1b3113b9 100644 --- a/arch/sparc/kernel/of_device.c +++ b/arch/sparc/kernel/of_device.c @@ -40,6 +40,28 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index) } EXPORT_SYMBOL(irq_of_parse_and_map); +/* Take the archdata values for IOMMU, STC, and HOSTDATA found in + * BUS and propagate to all child of_device objects. + */ +void of_propagate_archdata(struct of_device *bus) +{ + struct dev_archdata *bus_sd = &bus->dev.archdata; + struct device_node *bus_dp = bus->node; + struct device_node *dp; + + for (dp = bus_dp->child; dp; dp = dp->sibling) { + struct of_device *op = of_find_device_by_node(dp); + + op->dev.archdata.iommu = bus_sd->iommu; + op->dev.archdata.stc = bus_sd->stc; + op->dev.archdata.host_controller = bus_sd->host_controller; + op->dev.archdata.numa_node = bus_sd->numa_node; + + if (dp->child) + of_propagate_archdata(op); + } +} + #ifdef CONFIG_PCI struct bus_type ebus_bus_type; EXPORT_SYMBOL(ebus_bus_type); diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index a30f2af0bf2c..b22475f85a5e 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -66,6 +66,28 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index) } EXPORT_SYMBOL(irq_of_parse_and_map); +/* Take the archdata values for IOMMU, STC, and HOSTDATA found in + * BUS and propagate to all child of_device objects. + */ +void of_propagate_archdata(struct of_device *bus) +{ + struct dev_archdata *bus_sd = &bus->dev.archdata; + struct device_node *bus_dp = bus->node; + struct device_node *dp; + + for (dp = bus_dp->child; dp; dp = dp->sibling) { + struct of_device *op = of_find_device_by_node(dp); + + op->dev.archdata.iommu = bus_sd->iommu; + op->dev.archdata.stc = bus_sd->stc; + op->dev.archdata.host_controller = bus_sd->host_controller; + op->dev.archdata.numa_node = bus_sd->numa_node; + + if (dp->child) + of_propagate_archdata(op); + } +} + #ifdef CONFIG_PCI struct bus_type ebus_bus_type; EXPORT_SYMBOL(ebus_bus_type); -- 2.20.1