diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86_64/bitops.h | 2 | ||||
| -rw-r--r-- | include/asm-x86_64/sparsemem.h | 26 |
2 files changed, 26 insertions, 2 deletions
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h index 5dd7727c756b..a31bb99be53f 100644 --- a/include/asm-x86_64/bitops.h +++ b/include/asm-x86_64/bitops.h @@ -411,8 +411,6 @@ static __inline__ int ffs(int x) /* find last set bit */ #define fls(x) generic_fls(x) -#define ARCH_HAS_ATOMIC_UNSIGNED 1 - #endif /* __KERNEL__ */ #endif /* _X86_64_BITOPS_H */ diff --git a/include/asm-x86_64/sparsemem.h b/include/asm-x86_64/sparsemem.h new file mode 100644 index 000000000000..dabb16714a71 --- /dev/null +++ b/include/asm-x86_64/sparsemem.h @@ -0,0 +1,26 @@ +#ifndef _ASM_X86_64_SPARSEMEM_H +#define _ASM_X86_64_SPARSEMEM_H 1 + +#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: size of each section + * MAX_PHYSADDR_BITS 2^n: max size of physical address space + * MAX_PHYSMEM_BITS 2^n: how much memory we can have in that space + * + */ + +#define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */ +#define MAX_PHYSADDR_BITS 40 +#define MAX_PHYSMEM_BITS 40 + +extern int early_pfn_to_nid(unsigned long pfn); + +#endif /* CONFIG_SPARSEMEM */ + +#endif /* _ASM_X86_64_SPARSEMEM_H */ |