> pci_enable(info on what to enable)
>
> so that drivers can specify ahead of time "don't enable PIO, only MMIO",
> "don't enable MMIO, only PIO", "don't use MSI", etc. and add a
> pci_disable() to undo all of that.
>
> The more we add singleton functions like pci_enable_msi(),
> pci_set_master(), etc. the more I wish for a single function that
> handled all those details at one atomic point. There is a lot of
> standard patterns that are hand-coded into every PCI driver's probe
> functions.
Agreed, with the proper arch hook to deal with arch brokenness of
course.
That could be a bitmap. What I'm not 100% confident at this point is
wether we want a bit per BAR or an "IO" bit and an "MMIO" bit. I think
I'd rather go for the first one.
Ben.
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