sparc64: Convert over to NO_BOOTMEM.

With help from Sam Ravnborg.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/Kconfig

@@ -61,6 +61,7 @@ config SPARC64
 	select IRQ_PREFLOW_FASTEOI
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select HAVE_C_RECORDMCOUNT
+	select NO_BOOTMEM
 
 config ARCH_DEFCONFIG
 	string

arch/sparc/mm/init_64.c

@@ -741,7 +741,6 @@ static void __init find_ramdisk(unsigned long phys_base)
 struct node_mem_mask {
 	unsigned long mask;
 	unsigned long val;
-	unsigned long bootmem_paddr;
 };
 static struct node_mem_mask node_masks[MAX_NUMNODES];
 static int num_node_masks;
@@ -820,7 +819,7 @@ static u64 memblock_nid_range(u64 start, u64 end, int *nid)
  */
 static void __init allocate_node_data(int nid)
 {
-	unsigned long paddr, num_pages, start_pfn, end_pfn;
+	unsigned long paddr, start_pfn, end_pfn;
 	struct pglist_data *p;
 
 #ifdef CONFIG_NEED_MULTIPLE_NODES
@@ -832,7 +831,7 @@ static void __init allocate_node_data(int nid)
 	NODE_DATA(nid) = __va(paddr);
 	memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
 
-	NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
+	NODE_DATA(nid)->node_id = nid;
 #endif
 
 	p = NODE_DATA(nid);
@@ -840,18 +839,6 @@ static void __init allocate_node_data(int nid)
 	get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
 	p->node_start_pfn = start_pfn;
 	p->node_spanned_pages = end_pfn - start_pfn;
-
-	if (p->node_spanned_pages) {
-		num_pages = bootmem_bootmap_pages(p->node_spanned_pages);
-
-		paddr = memblock_alloc_try_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid);
-		if (!paddr) {
-			prom_printf("Cannot allocate bootmap for nid[%d]\n",
-				  nid);
-			prom_halt();
-		}
-		node_masks[nid].bootmem_paddr = paddr;
-	}
 }
 
 static void init_node_masks_nonnuma(void)
@@ -1292,75 +1279,9 @@ static void __init bootmem_init_nonnuma(void)
 	node_set_online(0);
 }
 
-static void __init reserve_range_in_node(int nid, unsigned long start,
-					 unsigned long end)
-{
-	numadbg("    reserve_range_in_node(nid[%d],start[%lx],end[%lx]\n",
-		nid, start, end);
-	while (start < end) {
-		unsigned long this_end;
-		int n;
-
-		this_end = memblock_nid_range(start, end, &n);
-		if (n == nid) {
-			numadbg("      MATCH reserving range [%lx:%lx]\n",
-				start, this_end);
-			reserve_bootmem_node(NODE_DATA(nid), start,
-					     (this_end - start), BOOTMEM_DEFAULT);
-		} else
-			numadbg("      NO MATCH, advancing start to %lx\n",
-				this_end);
-
-		start = this_end;
-	}
-}
-
-static void __init trim_reserved_in_node(int nid)
-{
-	struct memblock_region *reg;
-
-	numadbg("  trim_reserved_in_node(%d)\n", nid);
-
-	for_each_memblock(reserved, reg)
-		reserve_range_in_node(nid, reg->base, reg->base + reg->size);
-}
-
-static void __init bootmem_init_one_node(int nid)
-{
-	struct pglist_data *p;
-
-	numadbg("bootmem_init_one_node(%d)\n", nid);
-
-	p = NODE_DATA(nid);
-
-	if (p->node_spanned_pages) {
-		unsigned long paddr = node_masks[nid].bootmem_paddr;
-		unsigned long end_pfn;
-
-		end_pfn = p->node_start_pfn + p->node_spanned_pages;
-
-		numadbg("  init_bootmem_node(%d, %lx, %lx, %lx)\n",
-			nid, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn);
-
-		init_bootmem_node(p, paddr >> PAGE_SHIFT,
-				  p->node_start_pfn, end_pfn);
-
-		numadbg("  free_bootmem_with_active_regions(%d, %lx)\n",
-			nid, end_pfn);
-		free_bootmem_with_active_regions(nid, end_pfn);
-
-		trim_reserved_in_node(nid);
-
-		numadbg("  sparse_memory_present_with_active_regions(%d)\n",
-			nid);
-		sparse_memory_present_with_active_regions(nid);
-	}
-}
-
 static unsigned long __init bootmem_init(unsigned long phys_base)
 {
 	unsigned long end_pfn;
-	int nid;
 
 	end_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
 	max_pfn = max_low_pfn = end_pfn;
@@ -1369,11 +1290,12 @@ static unsigned long __init bootmem_init(unsigned long phys_base)
 	if (bootmem_init_numa() < 0)
 		bootmem_init_nonnuma();
 
-	/* XXX cpu notifier XXX */
+	/* Dump memblock with node info. */
+	memblock_dump_all();
 
-	for_each_online_node(nid)
-		bootmem_init_one_node(nid);
+	/* XXX cpu notifier XXX */
 
+	sparse_memory_present_with_active_regions(MAX_NUMNODES);
 	sparse_init();
 
 	return end_pfn;
@@ -1973,6 +1895,7 @@ void __init mem_init(void)
 					free_all_bootmem_node(NODE_DATA(i));
 			}
 		}
+		totalram_pages += free_low_memory_core_early(MAX_NUMNODES);
 	}
 #else
 	totalram_pages = free_all_bootmem();