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-rw-r--r--include/asm-powerpc/pgtable.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index 0303f57366c1..e38931379a72 100644
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -1,5 +1,6 @@
1#ifndef _ASM_POWERPC_PGTABLE_H 1#ifndef _ASM_POWERPC_PGTABLE_H
2#define _ASM_POWERPC_PGTABLE_H 2#define _ASM_POWERPC_PGTABLE_H
3#ifdef __KERNEL__
3 4
4#ifndef CONFIG_PPC64 5#ifndef CONFIG_PPC64
5#include <asm-ppc/pgtable.h> 6#include <asm-ppc/pgtable.h>
@@ -58,6 +59,17 @@ struct mm_struct;
58#define IMALLOC_END (VMALLOC_START + PGTABLE_RANGE) 59#define IMALLOC_END (VMALLOC_START + PGTABLE_RANGE)
59 60
60/* 61/*
62 * Region IDs
63 */
64#define REGION_SHIFT 60UL
65#define REGION_MASK (0xfUL << REGION_SHIFT)
66#define REGION_ID(ea) (((unsigned long)(ea)) >> REGION_SHIFT)
67
68#define VMALLOC_REGION_ID (REGION_ID(VMALLOC_START))
69#define KERNEL_REGION_ID (REGION_ID(PAGE_OFFSET))
70#define USER_REGION_ID (0UL)
71
72/*
61 * Common bits in a linux-style PTE. These match the bits in the 73 * Common bits in a linux-style PTE. These match the bits in the
62 * (hardware-defined) PowerPC PTE as closely as possible. Additional 74 * (hardware-defined) PowerPC PTE as closely as possible. Additional
63 * bits may be defined in pgtable-*.h 75 * bits may be defined in pgtable-*.h
@@ -521,4 +533,5 @@ void pgtable_cache_init(void);
521#endif /* __ASSEMBLY__ */ 533#endif /* __ASSEMBLY__ */
522 534
523#endif /* CONFIG_PPC64 */ 535#endif /* CONFIG_PPC64 */
536#endif /* __KERNEL__ */
524#endif /* _ASM_POWERPC_PGTABLE_H */ 537#endif /* _ASM_POWERPC_PGTABLE_H */