arch/arm64/include/asm/smp_plat.h

   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 #endif /* __ASM_SMP_PLAT_H */