3 files changed, 22 insertions, 25 deletions

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 6f1ea9b33374..3241a6274b81 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -128,6 +128,7 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
 	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
 					 min_low_pfn, max_low_pfn);
 
+	add_active_range(0, min_low_pfn, max_low_pfn);
 	register_bootmem_low_pages();
 
 	node_set_online(0);
@@ -192,6 +193,7 @@ static void __init setup_memory(void)
 	 */
 	start_pfn = PFN_UP(__pa(_end));
 	setup_bootmem_allocator(start_pfn);
+	sparse_memory_present_with_active_regions(0);
 }
 #else
 extern void __init setup_memory(void);
@@ -250,8 +252,9 @@ void __init setup_arch(char **cmdline_p)
 	min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
 
 	nodes_clear(node_online_map);
+
+	/* Setup bootmem with available RAM */
 	setup_memory();
-	paging_init();
 	sparse_init();
 
 #ifdef CONFIG_DUMMY_CONSOLE
@@ -261,8 +264,9 @@ void __init setup_arch(char **cmdline_p)
 	/* Perform the machine specific initialisation */
 	if (likely(sh_mv.mv_setup))
 		sh_mv.mv_setup(cmdline_p);
-}
 
+	paging_init();
+}
 
 static const char *cpu_name[] = {
 	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 00f64c41edba..46fd212b3ed6 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -300,6 +300,13 @@ config NODES_SHIFT
 config ARCH_FLATMEM_ENABLE
 	def_bool y
 
+config ARCH_SPARSEMEM_ENABLE
+	def_bool y
+	select SPARSEMEM_STATIC
+
+config ARCH_SPARSEMEM_DEFAULT
+	def_bool y
+
 config MAX_ACTIVE_REGIONS
 	int
 	default "1"
@@ -307,6 +314,9 @@ config MAX_ACTIVE_REGIONS
 config ARCH_POPULATES_NODE_MAP
 	def_bool y
 
+config ARCH_SELECT_MEMORY_MODEL
+	def_bool y
+
 choice
 	prompt "Kernel page size"
 	default PAGE_SIZE_4KB
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index e0e644ff3204..1589466f9f87 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -36,14 +36,11 @@ void show_mem(void)
 	show_free_areas();
 
 	for_each_online_pgdat(pgdat) {
-		struct page *page, *end;
-		unsigned long flags;
+		unsigned long flags, i;
 
 		pgdat_resize_lock(pgdat, &flags);
-		page = pgdat->node_mem_map;
-		end = page + pgdat->node_spanned_pages;
-
-		do {
+		for (i = 0; i < pgdat->node_spanned_pages; i++) {
+			struct page *page = pgdat_page_nr(pgdat, i);
 			total++;
 			if (PageReserved(page))
 				reserved++;
@@ -55,9 +52,7 @@ void show_mem(void)
 				free++;
 			else
 				shared += page_count(page) - 1;
-			page++;
-		} while (page < end);
-
+		}
 		pgdat_resize_unlock(pgdat, &flags);
 	}
 
@@ -169,15 +164,11 @@ void __init paging_init(void)
 		low = pgdat->bdata->node_low_pfn;
 
 		max_zone_pfns[ZONE_NORMAL] = low;
-		add_active_range(nid, start_pfn, low);
 
 		printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
 		       nid, start_pfn, low);
 
 		free_area_init_nodes(max_zone_pfns);
-
-		printk("Node %u: mem_map starts at %p\n",
-		       pgdat->node_id, pgdat->node_mem_map);
 	}
 }
 
@@ -185,16 +176,13 @@ static struct kcore_list kcore_mem, kcore_vmalloc;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
+	int codesize, datasize, initsize;
 	int nid;
 
-	reservedpages = 0;
-
 	for_each_online_node(nid) {
 		pg_data_t *pgdat = NODE_DATA(nid);
 		unsigned long node_pages = 0;
 		void *node_high_memory;
-		int i;
 
 		num_physpages += pgdat->node_present_pages;
 
@@ -203,10 +191,6 @@ void __init mem_init(void)
 
 		totalram_pages += node_pages;
 
-		for (i = 0; i < node_pages; i++)
-			if (PageReserved(pgdat->node_mem_map + i))
-				reservedpages++;
-
 		node_high_memory = (void *)((pgdat->node_start_pfn +
 					     pgdat->node_spanned_pages) <<
 						PAGE_SHIFT);
@@ -239,11 +223,10 @@ void __init mem_init(void)
 		   VMALLOC_END - VMALLOC_START);
 
 	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
-	       "%dk reserved, %dk data, %dk init)\n",
+	       "%dk data, %dk init)\n",
 		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
 		totalram_pages << (PAGE_SHIFT-10),
 		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
 		datasize >> 10,
 		initsize >> 10);