[IA64] Rationalise Region Definitions

Currently, region numbers are defined in several files, with several 
names.  For example, we have REGION_KERNEL in asm/page.h and 
RGN_KERNEL in pgtable.h 
 
We also have address definitions that should depend on the 
RGN_XXX macros, but are currently just long constants. 
 
The following patch reorganises all the definitions so that they have 
the same form (RGN_XXX), are in one place, and that addresses that 
depend on RGN_XXX are derived from them. 

(This is a necessary but not sufficient patch to allow UML-like 
operation on IA64). 

Thanks to David Mosberger for catching the change I missed in mmu_context.h.
 
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au> 
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 5 insertions, 8 deletions

diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 48586e08f432..2e34c06e6777 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -204,21 +204,18 @@ ia64_phys_addr_valid (unsigned long addr)
 #define set_pte(ptep, pteval)   (*(ptep) = (pteval))
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
-#define RGN_SIZE        (1UL << 61)
-#define RGN_KERNEL      7
-
-#define VMALLOC_START           0xa000000200000000UL
+#define VMALLOC_START           (RGN_BASE(RGN_GATE) + 0x200000000UL)
 #ifdef CONFIG_VIRTUAL_MEM_MAP
-# define VMALLOC_END_INIT       (0xa000000000000000UL + (1UL << (4*PAGE_SHIFT - 9)))
+# define VMALLOC_END_INIT       (RGN_BASE(RGN_GATE) + (1UL << (4*PAGE_SHIFT - 9)))
 # define VMALLOC_END            vmalloc_end
   extern unsigned long vmalloc_end;
 #else
-# define VMALLOC_END            (0xa000000000000000UL + (1UL << (4*PAGE_SHIFT - 9)))
+# define VMALLOC_END            (RGN_BASE(RGN_GATE) + (1UL << (4*PAGE_SHIFT - 9)))
 #endif
 
 /* fs/proc/kcore.c */
-#define kc_vaddr_to_offset(v) ((v) - 0xa000000000000000UL)
-#define kc_offset_to_vaddr(o) ((o) + 0xa000000000000000UL)
+#define kc_vaddr_to_offset(v) ((v) - RGN_BASE(RGN_GATE))
+#define kc_offset_to_vaddr(o) ((o) + RGN_BASE(RGN_GATE))
 
 /*
  * Conversion functions: convert page frame number (pfn) and a protection value to a page