1 files changed, 6 insertions, 59 deletions

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 11eb8add782..804d61566a5 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -142,58 +142,6 @@ static void __init find_limits(unsigned long *min, unsigned long *max_low,
 	*max_high = bank_pfn_end(&mi->bank[mi->nr_banks - 1]);
 }
 
-static void __init arm_bootmem_init(unsigned long start_pfn,
-	unsigned long end_pfn)
-{
-	struct memblock_region *reg;
-	unsigned int boot_pages;
-	phys_addr_t bitmap;
-	pg_data_t *pgdat;
-
-	/*
-	 * Allocate the bootmem bitmap page.  This must be in a region
-	 * of memory which has already been mapped.
-	 */
-	boot_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
-	bitmap = memblock_alloc_base(boot_pages << PAGE_SHIFT, L1_CACHE_BYTES,
-				__pfn_to_phys(end_pfn));
-
-	/*
-	 * Initialise the bootmem allocator, handing the
-	 * memory banks over to bootmem.
-	 */
-	node_set_online(0);
-	pgdat = NODE_DATA(0);
-	init_bootmem_node(pgdat, __phys_to_pfn(bitmap), start_pfn, end_pfn);
-
-	/* Free the lowmem regions from memblock into bootmem. */
-	for_each_memblock(memory, reg) {
-		unsigned long start = memblock_region_memory_base_pfn(reg);
-		unsigned long end = memblock_region_memory_end_pfn(reg);
-
-		if (end >= end_pfn)
-			end = end_pfn;
-		if (start >= end)
-			break;
-
-		free_bootmem(__pfn_to_phys(start), (end - start) << PAGE_SHIFT);
-	}
-
-	/* Reserve the lowmem memblock reserved regions in bootmem. */
-	for_each_memblock(reserved, reg) {
-		unsigned long start = memblock_region_reserved_base_pfn(reg);
-		unsigned long end = memblock_region_reserved_end_pfn(reg);
-
-		if (end >= end_pfn)
-			end = end_pfn;
-		if (start >= end)
-			break;
-
-		reserve_bootmem(__pfn_to_phys(start),
-			        (end - start) << PAGE_SHIFT, BOOTMEM_DEFAULT);
-	}
-}
-
 #ifdef CONFIG_ZONE_DMA
 
 phys_addr_t arm_dma_zone_size __read_mostly;
@@ -233,7 +181,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
 #endif
 }
 
-static void __init arm_bootmem_free(unsigned long min, unsigned long max_low,
+static void __init zone_sizes_init(unsigned long min, unsigned long max_low,
 	unsigned long max_high)
 {
 	unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
@@ -342,10 +290,11 @@ void __init arm_memblock_init(struct meminfo *mi,
 #endif
 #ifdef CONFIG_BLK_DEV_INITRD
 	/* FDT scan will populate initrd_start */
-	if (initrd_start) {
+	if (initrd_start && !phys_initrd_size) {
 		phys_initrd_start = __virt_to_phys(initrd_start);
 		phys_initrd_size = initrd_end - initrd_start;
 	}
+	initrd_start = initrd_end = 0;
 	if (phys_initrd_size &&
 	    !memblock_is_region_memory(phys_initrd_start, phys_initrd_size)) {
 		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region - disabling initrd\n",
@@ -381,7 +330,6 @@ void __init arm_memblock_init(struct meminfo *mi,
 	dma_contiguous_reserve(min(arm_dma_limit, arm_lowmem_limit));
 
 	arm_memblock_steal_permitted = false;
-	memblock_allow_resize();
 	memblock_dump_all();
 }
 
@@ -389,12 +337,11 @@ void __init bootmem_init(void)
 {
 	unsigned long min, max_low, max_high;
 
+	memblock_allow_resize();
 	max_low = max_high = 0;
 
 	find_limits(&min, &max_low, &max_high);
 
-	arm_bootmem_init(min, max_low);
-
 	/*
 	 * Sparsemem tries to allocate bootmem in memory_present(),
 	 * so must be done after the fixed reservations
@@ -411,7 +358,7 @@ 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(min, max_low, max_high);
+	zone_sizes_init(min, max_low, max_high);
 
 	/*
 	 * This doesn't seem to be used by the Linux memory manager any
@@ -584,7 +531,7 @@ void __init mem_init(void)
 	extern u32 itcm_end;
 #endif
 
-	max_mapnr   = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
+	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
 
 	/* this will put all unused low memory onto the freelists */
 	free_unused_memmap(&meminfo);