arch/powerpc/mm/vphn.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ARCH_POWERPC_MM_VPHN_H_
   3 #define _ARCH_POWERPC_MM_VPHN_H_
   4
   5 /* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers.
   6  */
   7 #define VPHN_REGISTER_COUNT 6
   8
   9 /*
  10  * 6 64-bit registers unpacked into up to 24 be32 associativity values. To
  11  * form the complete property we have to add the length in the first cell.
  12  */
  13 #define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1)
  14
  15 extern int vphn_unpack_associativity(const long *packed, __be32 *unpacked);
  16
  17 #endif