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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
config PCI
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bool "PCI support"
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help
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Find out whether you have a PCI motherboard. PCI is the name of a
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bus system, i.e. the way the CPU talks to the other stuff inside
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your box. If you have PCI, say Y, otherwise N.
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The PCI-HOWTO, available from
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<http://www.tldp.org/docs.html#howto>, contains valuable
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information about which PCI hardware does work under Linux and which
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doesn't.
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config SH_PCIDMA_NONCOHERENT
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bool "Cache and PCI noncoherent"
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depends on PCI
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default y
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help
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Enable this option if your platform does not have a CPU cache which
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remains coherent with PCI DMA. It is safest to say 'Y', although you
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will see better performance if you can say 'N', because the PCI DMA
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code will not have to flush the CPU's caches. If you have a PCI host
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bridge integrated with your SH CPU, refer carefully to the chip specs
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to see if you can say 'N' here. Otherwise, leave it as 'Y'.
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# This is also board-specific
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config PCI_AUTO
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bool
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depends on PCI
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default y
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config PCI_AUTO_UPDATE_RESOURCES
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bool
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depends on PCI_AUTO
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default y if !SH_DREAMCAST
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help
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Selecting this option will cause the PCI auto code to leave your
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BAR values alone. Otherwise they will be updated automatically. If
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for some reason, you have a board that simply refuses to work
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with its resources updated beyond what they are when the device
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is powered up, set this to N. Everyone else will want this as Y.
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