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arch: arm64: Add MPIDR related defines

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Add macros to access MPIDR and extract affinity levels.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
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Sandeep Tripathy 2020-06-12 00:18:02 +05:30 • committed by Anas Nashif
commit 500451ad67
1 changed files with 13 additions and 0 deletions
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13
include/arch/arm/aarch64/cpu.h
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@ -139,4 +139,17 @@
#define GET_EL(_mode) (((_mode) >> MODE_EL_SHIFT) & MODE_EL_MASK)
/* mpidr */
#define MPIDR_AFFLVL_MASK 0xff
#define MPIDR_AFF0_SHIFT 0
#define MPIDR_AFF1_SHIFT 8
#define MPIDR_AFF2_SHIFT 16
#define MPIDR_AFF3_SHIFT 32
#define MPIDR_AFFLVL(mpidr, aff_level) \
(((mpidr) >> MPIDR_AFF##aff_level##_SHIFT) & MPIDR_AFFLVL_MASK)
#define GET_MPIDR() read_sysreg(mpidr_el1)
#define MPIDR_TO_CORE(mpidr) MPIDR_AFFLVL(mpidr, 0)
#endif /* ZEPHYR_INCLUDE_ARCH_ARM_AARCH64_CPU_H_ */