Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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