[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / include / asm / sparsemem.h

#ifndef ASMARM_SPARSEMEM_H
#define ASMARM_SPARSEMEM_H

#include <asm/memory.h>

/*
 * 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

#endif
Commit	Line	Data
05944d74 RK	1	#ifndef ASMARM_SPARSEMEM_H
	2	#define ASMARM_SPARSEMEM_H
	3
	4	#include <asm/memory.h>
	5
07f841b7 RK	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
05944d74 RK	23
05944d74 RK	24	#endif