[PATCH 01/24] PCI: Add iobusn_resource
From: Yinghai Lu <yinghai@kernel.org>
Date: 2012-02-05 06:58:48
Also in:
linux-pci, lkml
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
also add busn_res into struct pci_bus. will use them to have bus number resource tree. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> --- include/linux/ioport.h | 1 + include/linux/pci.h | 1 + kernel/resource.c | 8 ++++++++ 3 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index e885ba2..6fe9e19 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h@@ -136,6 +136,7 @@ struct resource { /* PC/ISA/whatever - the normal PC address spaces: IO and memory */ extern struct resource ioport_resource; extern struct resource iomem_resource; +extern struct resource iobusn_resource; extern struct resource *request_resource_conflict(struct resource *root, struct resource *new); extern int request_resource(struct resource *root, struct resource *new);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index f8caaab..94ad468 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h@@ -419,6 +419,7 @@ struct pci_bus { struct list_head slots; /* list of slots on this bus */ struct resource *resource[PCI_BRIDGE_RESOURCE_NUM]; struct list_head resources; /* address space routed to this bus */ + struct resource busn_res; /* track registered bus num range */ struct pci_ops *ops; /* configuration access functions */ void *sysdata; /* hook for sys-specific extension */
diff --git a/kernel/resource.c b/kernel/resource.c
index 7640b3a..53b42f0 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c@@ -38,6 +38,14 @@ struct resource iomem_resource = { }; EXPORT_SYMBOL(iomem_resource); +struct resource iobusn_resource = { + .name = "PCI busn", + .start = 0, + .end = 0xffffff, + .flags = IORESOURCE_BUS, +}; +EXPORT_SYMBOL(iobusn_resource); + /* constraints to be met while allocating resources */ struct resource_constraint { resource_size_t min, max, align;
--
1.7.7