arch/alpha/include/asm/sparsemem.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_ALPHA_SPARSEMEM_H
   3 #define _ASM_ALPHA_SPARSEMEM_H
   4
   5 #ifdef CONFIG_SPARSEMEM
   6
   7 #define SECTION_SIZE_BITS       27
   8
   9 /*
  10  * According to "Alpha Architecture Reference Manual" physical
  11  * addresses are at most 48 bits.
  12  * https://download.majix.org/dec/alpha_arch_ref.pdf
  13  */
  14 #define MAX_PHYSMEM_BITS        48
  15
  16 #endif /* CONFIG_SPARSEMEM */
  17
  18 #endif /* _ASM_ALPHA_SPARSEMEM_H */