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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#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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