1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2014-2015, Freescale Semiconductor
6 #ifndef _FSL_LAYERSCAPE_MP_H
7 #define _FSL_LAYERSCAPE_MP_H
10 * Each spin table element is defined as
12 * uint64_t entry_addr;
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
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 /* compare os arch and cpu arch */
24 #define SPIN_TABLE_ELEM_ARCH_COMP_IDX 3
25 #define WORDS_PER_SPIN_TABLE_ENTRY 8 /* pad to 64 bytes */
26 #define SPIN_TABLE_ELEM_SIZE 64
28 /* os arch is same as cpu arch */
29 #define OS_ARCH_SAME 0
30 /* os arch is different from cpu arch */
31 #define OS_ARCH_DIFF 1
33 #define id_to_core(x) ((x & 3) | (x >> 6))
35 extern u64 __spin_table[];
36 extern u64 __real_cntfrq;
37 extern u64 *secondary_boot_code;
38 extern size_t __secondary_boot_code_size;
40 int fsl_layerscape_wake_seconday_cores(void);
42 static inline int fsl_layerscape_wake_seconday_cores(void) { return 0; }
44 void *get_spin_tbl_addr(void);
45 phys_addr_t determine_mp_bootpg(void);
46 void secondary_boot_func(void);
47 int is_core_online(u64 cpu_id);
48 u32 cpu_pos_mask(void);
51 #endif /* _FSL_LAYERSCAPE_MP_H */