1 /*
2  * Copyright 2014-2015, Freescale Semiconductor
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #ifndef _FSL_LAYERSCAPE_MP_H
8 #define _FSL_LAYERSCAPE_MP_H
9 
10 /*
11 * Each spin table element is defined as
12 * struct {
13 *      uint64_t entry_addr;
14 *      uint64_t status;
15 *      uint64_t lpid;
16 * };
17 * we pad this struct to 64 bytes so each entry is in its own cacheline
18 * the actual spin table is an array of these structures
19 */
20 #define SPIN_TABLE_ELEM_ENTRY_ADDR_IDX	0
21 #define SPIN_TABLE_ELEM_STATUS_IDX	1
22 #define SPIN_TABLE_ELEM_LPID_IDX	2
23 #define WORDS_PER_SPIN_TABLE_ENTRY	8	/* pad to 64 bytes */
24 #define SPIN_TABLE_ELEM_SIZE		64
25 
26 #define id_to_core(x)	((x & 3) | (x >> 6))
27 #ifndef __ASSEMBLY__
28 extern u64 __spin_table[];
29 extern u64 __real_cntfrq;
30 extern u64 *secondary_boot_code;
31 extern size_t __secondary_boot_code_size;
32 int fsl_layerscape_wake_seconday_cores(void);
33 void *get_spin_tbl_addr(void);
34 phys_addr_t determine_mp_bootpg(void);
35 void secondary_boot_func(void);
36 int is_core_online(u64 cpu_id);
37 #endif
38 #endif /* _FSL_LAYERSCAPE_MP_H */
39