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 */