sparsemem.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef ASMARM_SPARSEMEM_H
 3#define ASMARM_SPARSEMEM_H
 4
 5#include <asm/page.h>
 6
 7/*
 8 * Two definitions are required for sparsemem:
 9 *
10 * MAX_PHYSMEM_BITS: The number of physical address bits required
11 *   to address the last byte of memory.
12 *
13 * SECTION_SIZE_BITS: The number of physical address bits to cover
14 *   the maximum amount of memory in a section.
15 *
16 * Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
17 * then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
18 *
19 * These can be overridden in your mach/memory.h.
20 */
21#if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
22#define MAX_PHYSMEM_BITS	36
23#define SECTION_SIZE_BITS	28
24#endif
25
26#endif