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029baf14a0
The PCI specifications says that an I/O region must be aligned on a 4 KB boundary, and a memory region aligned on a 1 MB boundary. However, the Marvell PCIe interfaces rely on address decoding windows (which allow to associate a range of physical addresses with a given device). For PCIe memory windows, those windows are defined with a 1 MB granularity (which matches the PCI specs), but PCIe I/O windows can only be defined with a 64 KB granularity, so they have to be 64 KB aligned. We therefore need to tell the PCI core about this special alignement requirement. The PCI core already calls pcibios_align_resource() in the ARM PCI core, specifically for such purposes. So this patch extends the ARM PCI core so that it calls a ->align_resource() hook registered by the PCI driver, exactly like the existing ->map_irq() and ->swizzle() hooks. A particular PCI driver can register a align_resource() hook, and do its own specific alignement, depending on the specific constraints of the underlying hardware. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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| .. | ||
| arch.h | ||
| dma.h | ||
| flash.h | ||
| irda.h | ||
| irq.h | ||
| map.h | ||
| pci.h | ||
| sharpsl_param.h | ||
| time.h | ||