diff options
Diffstat (limited to 'arch/x86/pci/i386.c')
| -rw-r--r-- | arch/x86/pci/i386.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 5dc9e8c63fcd..55253095be84 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -60,22 +60,23 @@ skip_isa_ioresource_align(struct pci_dev *dev) { * but we want to try to avoid allocating at 0x2900-0x2bff * which might have be mirrored at 0x0100-0x03ff.. */ -void -pcibios_align_resource(void *data, struct resource *res, +resource_size_t +pcibios_align_resource(void *data, const struct resource *res, resource_size_t size, resource_size_t align) { struct pci_dev *dev = data; + resource_size_t start = res->start; if (res->flags & IORESOURCE_IO) { - resource_size_t start = res->start; - if (skip_isa_ioresource_align(dev)) - return; - if (start & 0x300) { + return start; + if (start & 0x300) start = (start + 0x3ff) & ~0x3ff; - res->start = start; - } + } else if (res->flags & IORESOURCE_MEM) { + if (start < BIOS_END) + start = BIOS_END; } + return start; } EXPORT_SYMBOL(pcibios_align_resource); @@ -95,6 +96,7 @@ EXPORT_SYMBOL(pcibios_align_resource); * the fact the PCI specs explicitly allow address decoders to be * shared between expansion ROMs and other resource regions, it's * at least dangerous) + * - bad resource sizes or overlaps with other regions * * Our solution: * (1) Allocate resources for all buses behind PCI-to-PCI bridges. @@ -129,15 +131,13 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) continue; if (!r->start || pci_claim_resource(dev, idx) < 0) { - dev_info(&dev->dev, - "can't reserve window %pR\n", - r); /* * Something is wrong with the region. * Invalidate the resource to prevent * child resource allocations in this * range. */ + r->start = r->end = 0; r->flags = 0; } } @@ -183,9 +183,8 @@ static void __init pcibios_allocate_resources(int pass) "BAR %d: reserving %pr (d=%d, p=%d)\n", idx, r, disabled, pass); if (pci_claim_resource(dev, idx) < 0) { - dev_info(&dev->dev, - "can't reserve %pR\n", r); /* We'll assign a new address later */ + dev->fw_addr[idx] = r->start; r->end -= r->start; r->start = 0; } @@ -257,10 +256,6 @@ void __init pcibios_resource_survey(void) */ fs_initcall(pcibios_assign_resources); -void __weak x86_pci_root_bus_res_quirks(struct pci_bus *b) -{ -} - /* * If we set up a device for bus mastering, we need to check the latency * timer as certain crappy BIOSes forget to set it properly. |