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powerpc/PCI: Override pcibios_window_alignment()

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This patch implements pcibios_window_alignment() so powerpc platforms can
force P2P bridge windows to be at larger alignments than the PCI spec
requires.

[bhelgaas: changelog]
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Gavin Shan
2012-09-11 16:59:46 -06:00
committed by Bjorn Helgaas
parent c121504e89
commit 4c2245bb5c
2 changed files with 23 additions and 0 deletions
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3
arch/powerpc/include/asm/machdep.h
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@@ -214,6 +214,9 @@ struct machdep_calls {
/* Called after scan and before resource survey */
void (*pcibios_fixup_phb)(struct pci_controller *hose);
/* Called during PCI resource reassignment */
resource_size_t (*pcibios_window_alignment)(struct pci_bus *, unsigned long type);
/* Called to shutdown machine specific hardware not already controlled
* by other drivers.
*/