1#ifndef ASMARM_SPARSEMEM_H
 2#define ASMARM_SPARSEMEM_H
 3
 4#include <asm/memory.h>
 5
 6/*
 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 *
18 * Define these in your mach/memory.h.
19 */
20#if !defined(SECTION_SIZE_BITS) || !defined(MAX_PHYSMEM_BITS)
21#error Sparsemem is not supported on this platform
 
22#endif
23
24#endif

 1#ifndef ASMARM_SPARSEMEM_H
 2#define ASMARM_SPARSEMEM_H
 3
 4#include <asm/memory.h>
 5
 6/*
 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 *
18 * These can be overridden in your mach/memory.h.
19 */
20#if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
21#define MAX_PHYSMEM_BITS	36
22#define SECTION_SIZE_BITS	28
23#endif
24
25#endif