x86/PCI: make Broadcom CNB20LE driver EMBEDDED and EXPERIMENTAL
This functionality is known to be incomplete, so discourage its use in general-purpose kernels. The only reason to use this driver is to support PCI hotplug on CNB20LE- based machines that don't have ACPI, and there are very few such systems. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=665109 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -1907,13 +1907,19 @@ config PCI_MMCONFIG
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depends on X86_64 && PCI && ACPI
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config PCI_CNB20LE_QUIRK
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bool "Read CNB20LE Host Bridge Windows"
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depends on PCI
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bool "Read CNB20LE Host Bridge Windows" if EMBEDDED
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default n
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depends on PCI && EXPERIMENTAL
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help
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Read the PCI windows out of the CNB20LE host bridge. This allows
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PCI hotplug to work on systems with the CNB20LE chipset which do
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not have ACPI.
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There's no public spec for this chipset, and this functionality
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is known to be incomplete.
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You should say N unless you know you need this.
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config DMAR
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bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
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depends on PCI_MSI && ACPI && EXPERIMENTAL
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