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#ifndef _I386_SPARSEMEM_H #define _I386_SPARSEMEM_H #ifdef CONFIG_SPARSEMEM /* * generic non-linear memory support: * * 1) we will not split memory into more chunks than will fit into the * flags field of the struct page */ /* * SECTION_SIZE_BITS 2^N: how big each section will be * MAX_PHYSADDR_BITS 2^N: how much physical address space we have * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space */ #ifdef CONFIG_X86_PAE #define SECTION_SIZE_BITS 30 #define MAX_PHYSADDR_BITS 36 #define MAX_PHYSMEM_BITS 36 #else #define SECTION_SIZE_BITS 26 #define MAX_PHYSADDR_BITS 32 #define MAX_PHYSMEM_BITS 32 #endif /* XXX: FIXME -- wli */ #define kern_addr_valid(kaddr) (0) #endif /* CONFIG_SPARSEMEM */ #endif /* _I386_SPARSEMEM_H */