xref: /openbmc/linux/arch/arm64/include/asm/smp_plat.h (revision d7a3d85e)
1 /*
2  * Definitions specific to SMP platforms.
3  *
4  * Copyright (C) 2013 ARM Ltd.
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #ifndef __ASM_SMP_PLAT_H
20 #define __ASM_SMP_PLAT_H
21 
22 #include <asm/types.h>
23 
24 struct mpidr_hash {
25 	u64	mask;
26 	u32	shift_aff[4];
27 	u32	bits;
28 };
29 
30 extern struct mpidr_hash mpidr_hash;
31 
32 static inline u32 mpidr_hash_size(void)
33 {
34 	return 1 << mpidr_hash.bits;
35 }
36 
37 /*
38  * Logical CPU mapping.
39  */
40 extern u64 __cpu_logical_map[NR_CPUS];
41 #define cpu_logical_map(cpu)    __cpu_logical_map[cpu]
42 
43 void __init do_post_cpus_up_work(void);
44 
45 #endif /* __ASM_SMP_PLAT_H */
46