2 * Copyright 2014-2015, Freescale Semiconductor
4 * SPDX-License-Identifier: GPL-2.0+
7 #ifndef _FSL_LAYERSCAPE_MP_H
8 #define _FSL_LAYERSCAPE_MP_H
11 * Each spin table element is defined as
13 * uint64_t entry_addr;
18 * we pad this struct to 64 bytes so each entry is in its own cacheline
19 * the actual spin table is an array of these structures
21 #define SPIN_TABLE_ELEM_ENTRY_ADDR_IDX 0
22 #define SPIN_TABLE_ELEM_STATUS_IDX 1
23 #define SPIN_TABLE_ELEM_LPID_IDX 2
24 /* compare os arch and cpu arch */
25 #define SPIN_TABLE_ELEM_ARCH_COMP_IDX 3
26 #define WORDS_PER_SPIN_TABLE_ENTRY 8 /* pad to 64 bytes */
27 #define SPIN_TABLE_ELEM_SIZE 64
29 /* os arch is same as cpu arch */
30 #define OS_ARCH_SAME 0
31 /* os arch is different from cpu arch */
32 #define OS_ARCH_DIFF 1
34 #define id_to_core(x) ((x & 3) | (x >> 6))
36 extern u64 __spin_table[];
37 extern u64 __real_cntfrq;
38 extern u64 *secondary_boot_code;
39 extern size_t __secondary_boot_code_size;
41 int fsl_layerscape_wake_seconday_cores(void);
43 static inline int fsl_layerscape_wake_seconday_cores(void) { return 0; }
45 void *get_spin_tbl_addr(void);
46 phys_addr_t determine_mp_bootpg(void);
47 void secondary_boot_func(void);
48 int is_core_online(u64 cpu_id);
49 u32 cpu_pos_mask(void);
52 #endif /* _FSL_LAYERSCAPE_MP_H */