Josh Triplett 7bc90e01c3 efi: Add a function to look up existing IO memory mappings ... The EFI initialization creates virtual mappings for EFI boot services memory, so if a driver wants to access EFI boot services memory, it cannot call ioremap itself; doing so will trip the WARN about mapping RAM twice. Thus, a driver accessing EFI boot services memory must do so via the existing mapping already created during EFI intiialization. Since the EFI code already maintains a memory map for that memory, add a function efi_lookup_mapped_addr to look up mappings in that memory map. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Link: http://lkml.kernel.org/r/0eb48ae012797912874919110660ad420b90268b.1348876882.git.josh@joshtriplett.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>		2012-09-29 12:21:02 -07:00
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efi_32.c	x86, efi: Make efi_call_phys_{prelog,epilog} CONFIG_RELOCATABLE-aware	2011-12-09 16:39:11 -08:00
efi_64.c	Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid"	2011-12-12 18:25:56 +01:00
efi_stub_32.S	x86: Move efi to platform	2010-10-27 14:30:01 +02:00
efi_stub_64.S	x86: Move efi to platform	2010-10-27 14:30:01 +02:00
efi.c	efi: Add a function to look up existing IO memory mappings	2012-09-29 12:21:02 -07:00
Makefile	x86: Move efi to platform	2010-10-27 14:30:01 +02:00