arch/arm/include/asm/arch-fsl-layerscape/mp.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2014-2015, Freescale Semiconductor
 */

#ifndef _FSL_LAYERSCAPE_MP_H
#define _FSL_LAYERSCAPE_MP_H

/*
* Each spin table element is defined as
* struct {
*      uint64_t entry_addr;
*      uint64_t status;
*      uint64_t lpid;
*      uint64_t arch_comp;
* };
* we pad this struct to 64 bytes so each entry is in its own cacheline
* the actual spin table is an array of these structures
*/
#define SPIN_TABLE_ELEM_ENTRY_ADDR_IDX	0
#define SPIN_TABLE_ELEM_STATUS_IDX	1
#define SPIN_TABLE_ELEM_LPID_IDX	2
/* compare os arch and cpu arch */
#define SPIN_TABLE_ELEM_ARCH_COMP_IDX	3
#define WORDS_PER_SPIN_TABLE_ENTRY	8	/* pad to 64 bytes */
#define SPIN_TABLE_ELEM_SIZE		64

/* os arch is same as cpu arch */
#define OS_ARCH_SAME			0
/* os arch is different from cpu arch */
#define OS_ARCH_DIFF			1

#define id_to_core(x)	((x & 3) | (x >> 6))
#ifndef __ASSEMBLY__
extern u64 __real_cntfrq;
extern void *secondary_boot_addr;
extern void *secondary_boot_code_start;
extern size_t secondary_boot_code_size;
#ifdef CONFIG_MP
int fsl_layerscape_wake_seconday_cores(void);
#else
static inline int fsl_layerscape_wake_seconday_cores(void) { return 0; }
#endif
void *get_spin_tbl_addr(void);
int is_core_online(u64 cpu_id);
u32 cpu_pos_mask(void);
#endif

#endif /* _FSL_LAYERSCAPE_MP_H */