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Merge branch 'pci/wei-resource-cleanups' into next 

* pci/wei-resource-cleanups:
  PCI: Align bridge I/O windows as required by downstream devices & bridges
  PCI: Fix types in pbus_size_io()
  PCI: Add comments for pbus_size_mem() parameters
  PCI: Enumerate subordinate buses, not devices, in pci_bus_get_depth()
This commit is contained in:
Bjorn Helgaas 2013-08-06 14:57:23 -06:00
parent cbe2bb4f2b 2d1d66780e
commit e3ec221b93
1 changed files with 11 additions and 14 deletions
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25
drivers/pci/setup-bus.c
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@ -747,14 +747,14 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
{
struct pci_dev *dev;
struct resource *b_res = find_free_bus_resource(bus, IORESOURCE_IO);
unsigned long size = 0, size0 = 0, size1 = 0;
resource_size_t size = 0, size0 = 0, size1 = 0;
resource_size_t children_add_size = 0;
resource_size_t min_align, io_align, align;
resource_size_t min_align, align;
if (!b_res)
return;
io_align = min_align = window_alignment(bus, IORESOURCE_IO);
min_align = window_alignment(bus, IORESOURCE_IO);
list_for_each_entry(dev, &bus->devices, bus_list) {
int i;
@ -781,9 +781,6 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
}
}
if (min_align > io_align)
min_align = io_align;
size0 = calculate_iosize(size, min_size, size1,
resource_size(b_res), min_align);
if (children_add_size > add_size)
@ -807,8 +804,9 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
add_to_list(realloc_head, bus->self, b_res, size1-size0,
min_align);
dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window "
"%pR to %pR add_size %lx\n", b_res,
&bus->busn_res, size1-size0);
"%pR to %pR add_size %llx\n", b_res,
&bus->busn_res,
(unsigned long long)size1-size0);
}
}
@ -838,6 +836,8 @@ static inline resource_size_t calculate_mem_align(resource_size_t *aligns,
* pbus_size_mem() - size the memory window of a given bus
*
* @bus : the bus
* @mask: mask the resource flag, then compare it with type
* @type: the type of free resource from bridge
* @min_size : the minimum memory window that must to be allocated
* @add_size : additional optional memory window
* @realloc_head : track the additional memory window on this list
@ -1300,15 +1300,12 @@ static void pci_bus_dump_resources(struct pci_bus *bus)
static int __init pci_bus_get_depth(struct pci_bus *bus)
{
int depth = 0;
struct pci_dev *dev;
struct pci_bus *child_bus;
list_for_each_entry(dev, &bus->devices, bus_list) {
list_for_each_entry(child_bus, &bus->children, node){
int ret;
struct pci_bus *b = dev->subordinate;
if (!b)
continue;
ret = pci_bus_get_depth(b);
ret = pci_bus_get_depth(child_bus);
if (ret + 1 > depth)
depth = ret + 1;
}