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path: root/drivers/pci/setup-bus.c
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Diffstat (limited to 'drivers/pci/setup-bus.c')
-rw-r--r--drivers/pci/setup-bus.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 4409cd0e15f..1796c6ffe91 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -34,6 +34,7 @@ struct resource_list_x {
resource_size_t start;
resource_size_t end;
resource_size_t add_size;
+ resource_size_t min_align;
unsigned long flags;
};
@@ -65,7 +66,7 @@ void pci_realloc(void)
*/
static void add_to_list(struct resource_list_x *head,
struct pci_dev *dev, struct resource *res,
- resource_size_t add_size)
+ resource_size_t add_size, resource_size_t min_align)
{
struct resource_list_x *list = head;
struct resource_list_x *ln = list->next;
@@ -84,13 +85,16 @@ static void add_to_list(struct resource_list_x *head,
tmp->end = res->end;
tmp->flags = res->flags;
tmp->add_size = add_size;
+ tmp->min_align = min_align;
list->next = tmp;
}
static void add_to_failed_list(struct resource_list_x *head,
struct pci_dev *dev, struct resource *res)
{
- add_to_list(head, dev, res, 0);
+ add_to_list(head, dev, res,
+ 0 /* dont care */,
+ 0 /* dont care */);
}
static void __dev_sort_resources(struct pci_dev *dev,
@@ -159,13 +163,16 @@ static void adjust_resources_sorted(struct resource_list_x *add_head,
idx = res - &list->dev->resource[0];
add_size=list->add_size;
- if (!resource_size(res) && add_size) {
- res->end = res->start + add_size - 1;
- if(pci_assign_resource(list->dev, idx))
+ if (!resource_size(res)) {
+ res->end = res->start + add_size - 1;
+ if(pci_assign_resource(list->dev, idx))
reset_resource(res);
- } else if (add_size) {
- adjust_resource(res, res->start,
- resource_size(res) + add_size);
+ } else {
+ resource_size_t align = list->min_align;
+ res->flags |= list->flags & (IORESOURCE_STARTALIGN|IORESOURCE_SIZEALIGN);
+ if (pci_reassign_resource(list->dev, idx, add_size, align))
+ dev_printk(KERN_DEBUG, &list->dev->dev, "failed to add optional resources res=%pR\n",
+ res);
}
out:
tmp = list;
@@ -619,7 +626,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
b_res->end = b_res->start + size0 - 1;
b_res->flags |= IORESOURCE_STARTALIGN;
if (size1 > size0 && add_head)
- add_to_list(add_head, bus->self, b_res, size1-size0);
+ add_to_list(add_head, bus->self, b_res, size1-size0, 4096);
}
/**
@@ -722,7 +729,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
b_res->end = size0 + min_align - 1;
b_res->flags |= IORESOURCE_STARTALIGN | mem64_mask;
if (size1 > size0 && add_head)
- add_to_list(add_head, bus->self, b_res, size1-size0);
+ add_to_list(add_head, bus->self, b_res, size1-size0, min_align);
return 1;
}