memblock: Change u64 to phys_addr_t

Let's not waste space and cycles on archs that don't support >32-bit
physical address space.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

include/linux/memblock.h

@@ -21,19 +21,19 @@
 #define MAX_MEMBLOCK_REGIONS 128
 
 struct memblock_region {
-	u64 base;
-	u64 size;
+	phys_addr_t base;
+	phys_addr_t size;
 };
 
 struct memblock_type {
 	unsigned long cnt;
-	u64 size;
+	phys_addr_t size;
 	struct memblock_region regions[MAX_MEMBLOCK_REGIONS+1];
 };
 
 struct memblock {
 	unsigned long debug;
-	u64 current_limit;
+	phys_addr_t current_limit;
 	struct memblock_type memory;
 	struct memblock_type reserved;
 };
@@ -42,34 +42,34 @@ extern struct memblock memblock;
 
 extern void __init memblock_init(void);
 extern void __init memblock_analyze(void);
-extern long memblock_add(u64 base, u64 size);
-extern long memblock_remove(u64 base, u64 size);
-extern long __init memblock_free(u64 base, u64 size);
-extern long __init memblock_reserve(u64 base, u64 size);
+extern long memblock_add(phys_addr_t base, phys_addr_t size);
+extern long memblock_remove(phys_addr_t base, phys_addr_t size);
+extern long __init memblock_free(phys_addr_t base, phys_addr_t size);
+extern long __init memblock_reserve(phys_addr_t base, phys_addr_t size);
 
-extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid);
-extern u64 __init memblock_alloc(u64 size, u64 align);
+extern phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
+extern phys_addr_t __init memblock_alloc(phys_addr_t size, phys_addr_t align);
 
 /* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
-#define MEMBLOCK_ALLOC_ANYWHERE	(~(u64)0)
+#define MEMBLOCK_ALLOC_ANYWHERE	(~(phys_addr_t)0)
 #define MEMBLOCK_ALLOC_ACCESSIBLE	0
 
-extern u64 __init memblock_alloc_base(u64 size,
-		u64, u64 max_addr);
-extern u64 __init __memblock_alloc_base(u64 size,
-		u64 align, u64 max_addr);
-extern u64 __init memblock_phys_mem_size(void);
-extern u64 memblock_end_of_DRAM(void);
-extern void __init memblock_enforce_memory_limit(u64 memory_limit);
-extern int memblock_is_memory(u64 addr);
-extern int memblock_is_region_memory(u64 base, u64 size);
-extern int __init memblock_is_reserved(u64 addr);
-extern int memblock_is_region_reserved(u64 base, u64 size);
+extern phys_addr_t __init memblock_alloc_base(phys_addr_t size,
+		phys_addr_t, phys_addr_t max_addr);
+extern phys_addr_t __init __memblock_alloc_base(phys_addr_t size,
+		phys_addr_t align, phys_addr_t max_addr);
+extern phys_addr_t __init memblock_phys_mem_size(void);
+extern phys_addr_t memblock_end_of_DRAM(void);
+extern void __init memblock_enforce_memory_limit(phys_addr_t memory_limit);
+extern int memblock_is_memory(phys_addr_t addr);
+extern int memblock_is_region_memory(phys_addr_t base, phys_addr_t size);
+extern int __init memblock_is_reserved(phys_addr_t addr);
+extern int memblock_is_region_reserved(phys_addr_t base, phys_addr_t size);
 
 extern void memblock_dump_all(void);
 
 /* Provided by the architecture */
-extern u64 memblock_nid_range(u64 start, u64 end, int *nid);
+extern phys_addr_t memblock_nid_range(phys_addr_t start, phys_addr_t end, int *nid);
 
 /**
  * memblock_set_current_limit - Set the current allocation limit to allow
@@ -77,7 +77,7 @@ extern u64 memblock_nid_range(u64 start, u64 end, int *nid);
  *                         accessible during boot
  * @limit: New limit value (physical address)
  */
-extern void memblock_set_current_limit(u64 limit);
+extern void memblock_set_current_limit(phys_addr_t limit);
 
 
 /*