Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a835ae64 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
Browse files

Merge "arm64: kernel: add MPIDR_EL1 accessors macros"

parents c9fe21db f55fe8a3

arch/arm64/include/asm/cputype.h

+10 −0
Original line number Diff line number Diff line
@@ -30,6 +30,16 @@ 


#define MPIDR_HWID_BITMASK	0xff00ffffff



#define MPIDR_LEVEL_BITS_SHIFT	3

#define MPIDR_LEVEL_BITS	(1 << MPIDR_LEVEL_BITS_SHIFT)

#define MPIDR_LEVEL_MASK	((1 << MPIDR_LEVEL_BITS) - 1)



#define MPIDR_LEVEL_SHIFT(level) \

	(((1 << level) >> 1) << MPIDR_LEVEL_BITS_SHIFT)



#define MPIDR_AFFINITY_LEVEL(mpidr, level) \

	((mpidr >> MPIDR_LEVEL_SHIFT(level)) & MPIDR_LEVEL_MASK)



#define read_cpuid(reg) ({						\

	u64 __val;							\

	asm("mrs	%0, " reg : "=r" (__val));			\