ARM: memblock: use memblock when initializing memory allocators

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/init.c

@@ -192,11 +192,11 @@ static void __init arm_bootmem_init(struct meminfo *mi,
 	}
 }
 
-static void __init arm_bootmem_free(struct meminfo *mi, unsigned long min,
-	unsigned long max_low, unsigned long max_high)
+static void __init arm_bootmem_free(unsigned long min, unsigned long max_low,
+	unsigned long max_high)
 {
 	unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
-	int i;
+	struct memblock_region *reg;
 
 	/*
 	 * initialise the zones.
@@ -218,13 +218,20 @@ static void __init arm_bootmem_free(struct meminfo *mi, unsigned long min,
 	 *  holes = node_size - sum(bank_sizes)
 	 */
 	memcpy(zhole_size, zone_size, sizeof(zhole_size));
-	for_each_bank(i, mi) {
-		int idx = 0;
+	for_each_memblock(memory, reg) {
+		unsigned long start = memblock_region_memory_base_pfn(reg);
+		unsigned long end = memblock_region_memory_end_pfn(reg);
+
+		if (start < max_low) {
+			unsigned long low_end = min(end, max_low);
+			zhole_size[0] -= low_end - start;
+		}
 #ifdef CONFIG_HIGHMEM
-		if (mi->bank[i].highmem)
-			idx = ZONE_HIGHMEM;
+		if (end > max_low) {
+			unsigned long high_start = max(start, max_low);
+			zhole_size[ZONE_HIGHMEM] -= end - high_start;
+		}
 #endif
-		zhole_size[idx] -= bank_pfn_size(&mi->bank[i]);
 	}
 
 	/*
@@ -327,7 +334,7 @@ void __init bootmem_init(void)
 	 * the sparse mem_map arrays initialized by sparse_init()
 	 * for memmap_init_zone(), otherwise all PFNs are invalid.
 	 */
-	arm_bootmem_free(mi, min, max_low, max_high);
+	arm_bootmem_free(min, max_low, max_high);
 
 	high_memory = __va((max_low << PAGE_SHIFT) - 1) + 1;