From cdfa59f5c33f353fad6a4df93434e88535f75da0 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Tue, 15 Apr 2014 21:59:30 -0400 Subject: arm64: add EFI runtime services This patch adds EFI runtime support for arm64. This runtime support allows the kernel to access various EFI runtime services provided by EFI firmware. Things like reboot, real time clock, EFI boot variables, and others. This functionality is supported for little endian kernels only. The UEFI firmware standard specifies that the firmware be little endian. A future patch is expected to add support for big endian kernels running with little endian firmware. Signed-off-by: Mark Salter [ Remove unnecessary cache/tlb maintenance. ] Signed-off-by: Mark Rutland Signed-off-by: Leif Lindholm Signed-off-by: Matt Fleming (cherry picked from commit f84d02755f5a9f3b88e8d15d6384da25ad6dcf5e) Signed-off-by: Mark Brown Conflicts: arch/arm64/Kconfig arch/arm64/kernel/Makefile --- arch/arm64/include/asm/efi.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 arch/arm64/include/asm/efi.h (limited to 'arch/arm64/include') diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h new file mode 100644 index 000000000000..5a46c4e7f539 --- /dev/null +++ b/arch/arm64/include/asm/efi.h @@ -0,0 +1,14 @@ +#ifndef _ASM_EFI_H +#define _ASM_EFI_H + +#include + +#ifdef CONFIG_EFI +extern void efi_init(void); +extern void efi_idmap_init(void); +#else +#define efi_init() +#define efi_idmap_init() +#endif + +#endif /* _ASM_EFI_H */ -- cgit v1.2.3