PCI: add debug print out for add_size

For use in debugging resource reallocation.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index c845d18..ae0b1f2 100644 (file)
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -118,10 +118,13 @@ static resource_size_t get_res_add_size(struct list_head *head,
 
        list_for_each_entry(dev_res, head, list) {
                if (dev_res->res == res) {
+                       int idx = res - &dev_res->dev->resource[0];
+
                        dev_printk(KERN_DEBUG, &dev_res->dev->dev,
-                                "%pR get_res_add_size  add_size %llx\n",
-                                dev_res->res,
+                                "res[%d]=%pR get_res_add_size add_size %llx\n",
+                                idx, dev_res->res,
                                 (unsigned long long)dev_res->add_size);
+
                        return dev_res->add_size;
                }
        }
@@ -260,8 +263,9 @@ static void reassign_resources_sorted(struct list_head *realloc_head,
                        if (pci_reassign_resource(add_res->dev, idx,
                                                  add_size, align))
                                dev_printk(KERN_DEBUG, &add_res->dev->dev,
-                                  "failed to add optional resources res=%pR\n",
-                                                       res);
+                                          "failed to add %llx res[%d]=%pR\n",
+                                          (unsigned long long)add_size,
+                                          idx, res);
                }
 out:
                list_del(&add_res->list);
@@ -760,8 +764,12 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
        b_res->start = 4096;
        b_res->end = b_res->start + size0 - 1;
        b_res->flags |= IORESOURCE_STARTALIGN;
-       if (size1 > size0 && realloc_head)
+       if (size1 > size0 && realloc_head) {
                add_to_list(realloc_head, bus->self, b_res, size1-size0, 4096);
+               dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window "
+                                "%pR to [bus %02x-%02x] add_size %lx\n", b_res,
+                                bus->secondary, bus->subordinate, size1-size0);
+       }
 }
 
 /**
@@ -873,8 +881,12 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
        b_res->start = min_align;
        b_res->end = size0 + min_align - 1;
        b_res->flags |= IORESOURCE_STARTALIGN | mem64_mask;
-       if (size1 > size0 && realloc_head)
+       if (size1 > size0 && realloc_head) {
                add_to_list(realloc_head, bus->self, b_res, size1-size0, min_align);
+               dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window "
+                                "%pR to [bus %02x-%02x] add_size %llx\n", b_res,
+                                bus->secondary, bus->subordinate, (unsigned long long)size1-size0);
+       }
        return 1;
 }