2006-11-30 20:43:51 +00:00
|
|
|
#ifndef ASMARM_SPARSEMEM_H
|
|
|
|
|
#define ASMARM_SPARSEMEM_H
|
|
|
|
|
|
|
|
|
|
#include <asm/memory.h>
|
|
|
|
|
|
2008-10-01 16:11:06 +00:00
|
|
|
/*
|
|
|
|
|
* Two definitions are required for sparsemem:
|
|
|
|
|
*
|
|
|
|
|
* MAX_PHYSMEM_BITS: The number of physical address bits required
|
|
|
|
|
* to address the last byte of memory.
|
|
|
|
|
*
|
|
|
|
|
* SECTION_SIZE_BITS: The number of physical address bits to cover
|
|
|
|
|
* the maximum amount of memory in a section.
|
|
|
|
|
*
|
|
|
|
|
* Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
|
|
|
|
|
* then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
|
|
|
|
|
*
|
|
|
|
|
* Define these in your mach/memory.h.
|
|
|
|
|
*/
|
|
|
|
|
#if !defined(SECTION_SIZE_BITS) || !defined(MAX_PHYSMEM_BITS)
|
|
|
|
|
#error Sparsemem is not supported on this platform
|
|
|
|
|
#endif
|
2006-11-30 20:43:51 +00:00
|
|
|
|
|
|
|
|
#endif
|
