linux-sg2042/include/asm-mips/sparsemem.h

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#ifndef _MIPS_SPARSEMEM_H
#define _MIPS_SPARSEMEM_H
#ifdef CONFIG_SPARSEMEM
/*
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#define SECTION_SIZE_BITS 28
#define MAX_PHYSMEM_BITS 35
#endif /* CONFIG_SPARSEMEM */
#endif /* _MIPS_SPARSEMEM_H */