tree bee038b981147f4f9f3ac0ca23348376044678dd
parent d7ed538a02c219119adb20f1dccbf0f8015e53f3
author Linus Torvalds <[EMAIL PROTECTED]> Wed, 03 Aug 2005 04:55:40 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Wed, 03 Aug 2005 04:55:40 -0700
pci: make bus resource start address override minimum IO address
The reason we have PCIBIOS_MIN_IO and PCIBIOS_MIN_CARDBUS_IO is because
we want to protect badly documented motherboard PCI resources and thus
don't want to allocate new resources in low IO/MEM space.
However, if we have already discovered a PCI bridge with a specified
resource base, that should override that decision.
This change will allow us to move the "careful" region upwards without
resulting in problems allocating resources in low mappings. This was
brought on by us having allocated a bus resource at 0x1000, conflicting
with a undocumented VAIO Sony PI resources.
drivers/pci/bus.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -60,7 +60,9 @@ pci_bus_alloc_resource(struct pci_bus *b
continue;
/* Ok, try it out.. */
- ret = allocate_resource(r, res, size, min, -1, align,
+ ret = allocate_resource(r, res, size,
+ r->start ? : min,
+ -1, align,
alignf, alignf_data);
if (ret == 0)
break;
-
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