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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ARCH_MPIDR_H__
#define __ARCH_MPIDR_H__
#include <stdint.h>
#include <arch/lib_helpers.h>
enum {
MPIDR_RES1_SHIFT = 31,
MPIDR_U_SHIFT = 30,
MPIDR_MT_SHIFT = 24,
MPIDR_AFFINITY_0_SHIFT = 0,
MPIDR_AFFINITY_1_SHIFT = 8,
MPIDR_AFFINITY_2_SHIFT = 16,
MPIDR_AFFINITY_3_SHIFT = 32,
MPIDR_AFFINITY_MASK = 0xff,
};
static inline uint64_t mpidr_mask(uint8_t aff3, uint8_t aff2,
uint8_t aff1, uint8_t aff0)
{
uint64_t mpidr = 0;
mpidr |= (uint64_t)aff3 << MPIDR_AFFINITY_3_SHIFT;
mpidr |= (uint64_t)aff2 << MPIDR_AFFINITY_2_SHIFT;
mpidr |= (uint64_t)aff1 << MPIDR_AFFINITY_1_SHIFT;
mpidr |= (uint64_t)aff0 << MPIDR_AFFINITY_0_SHIFT;
return mpidr;
}
static inline uint64_t read_mpidr(void)
{
return raw_read_mpidr_el1();
}
static inline uint64_t read_affinity_mpidr(void)
{
uint64_t affinity_mask;
affinity_mask = mpidr_mask(MPIDR_AFFINITY_MASK, MPIDR_AFFINITY_MASK,
MPIDR_AFFINITY_MASK, MPIDR_AFFINITY_MASK);
return read_mpidr() & affinity_mask;
}
#endif /* __ARCH_MPIDR_H__ */
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