x86 and ia64 have the early_ioremap()/early_memremap() functions, which
are useful for supporting things like UEFI, ACPI and SMBIOS, where
configuration tables need to be parsed before proper memory management
is available, regardless of highmem status.
This patchset implements a restricted form
x86 and ia64 have the early_ioremap()/early_memremap() functions, which
are useful for supporting things like UEFI, ACPI and SMBIOS, where
configuration tables need to be parsed before proper memory management
is available, regardless of highmem status.
This patchset implements a restricted form
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