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-rw-r--r--arch/x86/include/asm/pgtable_64.h2
-rw-r--r--arch/x86/include/asm/sparsemem.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 65b6be6677c..c54ba69608b 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -146,7 +146,7 @@ static inline void native_pgd_clear(pgd_t *pgd)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
-#define MAXMEM _AC(0x00003fffffffffff, UL)
+#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
#define VMEMMAP_START _AC(0xffffe20000000000, UL)
diff --git a/arch/x86/include/asm/sparsemem.h b/arch/x86/include/asm/sparsemem.h
index be44f7dab39..e3cc3c063ec 100644
--- a/arch/x86/include/asm/sparsemem.h
+++ b/arch/x86/include/asm/sparsemem.h
@@ -27,7 +27,7 @@
#else /* CONFIG_X86_32 */
# define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */
# define MAX_PHYSADDR_BITS 44
-# define MAX_PHYSMEM_BITS 44
+# define MAX_PHYSMEM_BITS 44 /* Can be max 45 bits */
#endif
#endif /* CONFIG_SPARSEMEM */