diff options
Diffstat (limited to 'arch/x86/pci/i386.c')
| -rw-r--r-- | arch/x86/pci/i386.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index bcd2f94b732c..42ba0e2da1a0 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -33,6 +33,15 @@ #include "pci.h" +static int +skip_isa_ioresource_align(struct pci_dev *dev) { + + if ((pci_probe & PCI_CAN_SKIP_ISA_ALIGN) && + !(dev->bus->bridge_ctl & PCI_BRIDGE_CTL_ISA)) + return 1; + return 0; +} + /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -50,9 +59,13 @@ void pcibios_align_resource(void *data, struct resource *res, resource_size_t size, resource_size_t align) { + struct pci_dev *dev = data; + if (res->flags & IORESOURCE_IO) { resource_size_t start = res->start; + if (skip_isa_ioresource_align(dev)) + return; if (start & 0x300) { start = (start + 0x3ff) & ~0x3ff; res->start = start; |