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Russell King05944d72006-11-30 20:43:51 +00001#ifndef ASMARM_SPARSEMEM_H
2#define ASMARM_SPARSEMEM_H
3
4#include <asm/memory.h>
5
Russell King07f841b2008-10-01 17:11:06 +01006/*
7 * Two definitions are required for sparsemem:
8 *
9 * MAX_PHYSMEM_BITS: The number of physical address bits required
10 * to address the last byte of memory.
11 *
12 * SECTION_SIZE_BITS: The number of physical address bits to cover
13 * the maximum amount of memory in a section.
14 *
15 * Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
16 * then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
17 *
Kevin Cernekeedb57f882015-08-10 20:53:11 +010018 * These can be overridden in your mach/memory.h.
Russell King07f841b2008-10-01 17:11:06 +010019 */
Kevin Cernekeedb57f882015-08-10 20:53:11 +010020#if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
21#define MAX_PHYSMEM_BITS 36
22#define SECTION_SIZE_BITS 28
Russell King07f841b2008-10-01 17:11:06 +010023#endif
Russell King05944d72006-11-30 20:43:51 +000024
25#endif