Exemplo n.º 1
0
unsigned long __init setup_memory(void)
{
	unsigned long bootmap_size;
	unsigned long min_pfn;
	int nid;
	mem_prof_t *mp;

	max_low_pfn = 0;
	min_low_pfn = -1;

	mem_prof_init();

	for_each_online_node(nid) {
		mp = &mem_prof[nid];
		NODE_DATA(nid)=(pg_data_t *)&m32r_node_data[nid];
		NODE_DATA(nid)->bdata = &node_bdata[nid];
		min_pfn = mp->start_pfn;
		max_pfn = mp->start_pfn + mp->pages;
		bootmap_size = init_bootmem_node(NODE_DATA(nid), mp->free_pfn,
			mp->start_pfn, max_pfn);

		free_bootmem_node(NODE_DATA(nid), PFN_PHYS(mp->start_pfn),
			PFN_PHYS(mp->pages));

		reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(mp->start_pfn),
			PFN_PHYS(mp->free_pfn - mp->start_pfn) + bootmap_size);

		if (max_low_pfn < max_pfn)
			max_low_pfn = max_pfn;

		if (min_low_pfn > min_pfn)
			min_low_pfn = min_pfn;
	}

#ifdef CONFIG_BLK_DEV_INITRD
	if (LOADER_TYPE && INITRD_START) {
		if (INITRD_START + INITRD_SIZE <= PFN_PHYS(max_low_pfn)) {
			reserve_bootmem_node(NODE_DATA(0), INITRD_START,
				INITRD_SIZE);
			initrd_start = INITRD_START ?
				INITRD_START + PAGE_OFFSET : 0;

			initrd_end = initrd_start + INITRD_SIZE;
			printk("initrd:start[%08lx],size[%08lx]\n",
				initrd_start, INITRD_SIZE);
		} else {
			printk("initrd extends beyond end of memory "
				"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
				INITRD_START + INITRD_SIZE,
				PFN_PHYS(max_low_pfn));

			initrd_start = 0;
		}
	}
#endif	/* CONFIG_BLK_DEV_INITRD */

	return max_low_pfn;
}
Exemplo n.º 2
0
void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
{
    unsigned long bootmap_pages;
    unsigned long start_pfn, end_pfn;
    unsigned long bootmem_paddr;

    /* Don't allow bogus node assignment */
    BUG_ON(nid > MAX_NUMNODES || nid <= 0);

    start_pfn = start >> PAGE_SHIFT;
    end_pfn = end >> PAGE_SHIFT;

    pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
                     PAGE_KERNEL);

    lmb_add(start, end - start);

    __add_active_range(nid, start_pfn, end_pfn);

    /* Node-local pgdat */
    NODE_DATA(nid) = __va(lmb_alloc_base(sizeof(struct pglist_data),
                                         SMP_CACHE_BYTES, end));
    memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));

    NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
    NODE_DATA(nid)->node_start_pfn = start_pfn;
    NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;

    /* Node-local bootmap */
    bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
    bootmem_paddr = lmb_alloc_base(bootmap_pages << PAGE_SHIFT,
                                   PAGE_SIZE, end);
    init_bootmem_node(NODE_DATA(nid), bootmem_paddr >> PAGE_SHIFT,
                      start_pfn, end_pfn);

    free_bootmem_with_active_regions(nid, end_pfn);

    /* Reserve the pgdat and bootmap space with the bootmem allocator */
    reserve_bootmem_node(NODE_DATA(nid), start_pfn << PAGE_SHIFT,
                         sizeof(struct pglist_data), BOOTMEM_DEFAULT);
    reserve_bootmem_node(NODE_DATA(nid), bootmem_paddr,
                         bootmap_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);

    /* It's up */
    node_set_online(nid);

    /* Kick sparsemem */
    sparse_memory_present_with_active_regions(nid);
}
Exemplo n.º 3
0
void __init reserve_bootmem_generic(unsigned long phys, unsigned len) 
{ 
#ifdef CONFIG_NUMA
	int nid = phys_to_nid(phys);
#endif
	unsigned long pfn = phys >> PAGE_SHIFT;
	if (pfn >= end_pfn) {
		/* This can happen with kdump kernels when accessing firmware
		   tables. */
		if (pfn < end_pfn_map)
			return;
		printk(KERN_ERR "reserve_bootmem: illegal reserve %lx %u\n",
				phys, len);
		return;
	}

	/* Should check here against the e820 map to avoid double free */
#ifdef CONFIG_NUMA
  	reserve_bootmem_node(NODE_DATA(nid), phys, len);
#else       		
	reserve_bootmem(phys, len);    
#endif
	if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
		dma_reserve += len / PAGE_SIZE;
		set_dma_reserve(dma_reserve);
	}
}
Exemplo n.º 4
0
void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
{
	unsigned long bootmap_pages, bootmap_start, bootmap_size;
	unsigned long start_pfn, free_pfn, end_pfn;

	/* Don't allow bogus node assignment */
	BUG_ON(nid > MAX_NUMNODES || nid == 0);

	/*
	 * The free pfn starts at the beginning of the range, and is
	 * advanced as necessary for pgdat and node map allocations.
	 */
	free_pfn = start_pfn = start >> PAGE_SHIFT;
	end_pfn = end >> PAGE_SHIFT;

	__add_active_range(nid, start_pfn, end_pfn);

	/* Node-local pgdat */
	NODE_DATA(nid) = pfn_to_kaddr(free_pfn);
	free_pfn += PFN_UP(sizeof(struct pglist_data));
	memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));

	NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
	NODE_DATA(nid)->node_start_pfn = start_pfn;
	NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;

	/* Node-local bootmap */
	bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
	bootmap_start = (unsigned long)pfn_to_kaddr(free_pfn);
	bootmap_size = init_bootmem_node(NODE_DATA(nid), free_pfn, start_pfn,
				    end_pfn);

	free_bootmem_with_active_regions(nid, end_pfn);

	/* Reserve the pgdat and bootmap space with the bootmem allocator */
	reserve_bootmem_node(NODE_DATA(nid), start_pfn << PAGE_SHIFT,
			     sizeof(struct pglist_data), BOOTMEM_DEFAULT);
	reserve_bootmem_node(NODE_DATA(nid), free_pfn << PAGE_SHIFT,
			     bootmap_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);

	/* It's up */
	node_set_online(nid);

	/* Kick sparsemem */
	sparse_memory_present_with_active_regions(nid);
}
Exemplo n.º 5
0
static void __init arm_bootmem_init(struct meminfo *mi,
	unsigned long start_pfn, unsigned long end_pfn)
{
	unsigned int boot_pages;
	phys_addr_t bitmap;
	pg_data_t *pgdat;
	int i;

	/*
	 * 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);

	for_each_bank(i, mi) {
		struct membank *bank = &mi->bank[i];
		if (!bank->highmem)
			free_bootmem(bank_phys_start(bank), bank_phys_size(bank));
	}

	/*
	 * Reserve the memblock reserved regions in bootmem.
	 */
	for (i = 0; i < memblock.reserved.cnt; i++) {
		phys_addr_t start = memblock_start_pfn(&memblock.reserved, i);
		if (start >= start_pfn &&
		    memblock_end_pfn(&memblock.reserved, i) <= end_pfn)
			reserve_bootmem_node(pgdat, __pfn_to_phys(start),
				memblock_size_bytes(&memblock.reserved, i),
				BOOTMEM_DEFAULT);
	}
}
Exemplo n.º 6
0
void __init setup_arch(char **cmdline_p)
{
#if defined(CONFIG_SH_GENERIC) || defined(CONFIG_SH_UNKNOWN)
	extern struct sh_machine_vector mv_unknown;
#endif
	struct sh_machine_vector *mv = NULL;
	char mv_name[MV_NAME_SIZE] = "";
	unsigned long mv_io_base = 0;
	int mv_mmio_enable = 0;
	unsigned long bootmap_size;
	unsigned long start_pfn, max_pfn, max_low_pfn;

#ifdef CONFIG_SH_EARLY_PRINTK
	sh_console_init();
#endif
	
	ROOT_DEV = to_kdev_t(ORIG_ROOT_DEV);

#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
#endif

	if (!MOUNT_ROOT_RDONLY)
		root_mountflags &= ~MS_RDONLY;
	init_mm.start_code = (unsigned long)&_text;
	init_mm.end_code = (unsigned long) &_etext;
	init_mm.end_data = (unsigned long) &_edata;
	init_mm.brk = (unsigned long) &_end;

	code_resource.start = virt_to_bus(&_text);
	code_resource.end = virt_to_bus(&_etext)-1;
	data_resource.start = virt_to_bus(&_etext);
	data_resource.end = virt_to_bus(&_edata)-1;

	parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base, &mv_mmio_enable);

#ifdef CONFIG_CMDLINE_BOOL
	sprintf(*cmdline_p, CONFIG_CMDLINE);
#endif

#ifdef CONFIG_SH_GENERIC
	if (mv == NULL) {
		mv = &mv_unknown;
		if (*mv_name != '\0') {
			printk("Warning: Unsupported machine %s, using unknown\n",
			       mv_name);
		}
	}
	sh_mv = *mv;
#endif
#ifdef CONFIG_SH_UNKNOWN
	sh_mv = mv_unknown;
#endif

#if defined(CONFIG_SH_GENERIC) || defined(CONFIG_SH_UNKNOWN)
	if (mv_io_base != 0) {
		sh_mv.mv_inb = generic_inb;
		sh_mv.mv_inw = generic_inw;
		sh_mv.mv_inl = generic_inl;
		sh_mv.mv_outb = generic_outb;
		sh_mv.mv_outw = generic_outw;
		sh_mv.mv_outl = generic_outl;

		sh_mv.mv_inb_p = generic_inb_p;
		sh_mv.mv_inw_p = generic_inw_p;
		sh_mv.mv_inl_p = generic_inl_p;
		sh_mv.mv_outb_p = generic_outb_p;
		sh_mv.mv_outw_p = generic_outw_p;
		sh_mv.mv_outl_p = generic_outl_p;

		sh_mv.mv_insb = generic_insb;
		sh_mv.mv_insw = generic_insw;
		sh_mv.mv_insl = generic_insl;
		sh_mv.mv_outsb = generic_outsb;
		sh_mv.mv_outsw = generic_outsw;
		sh_mv.mv_outsl = generic_outsl;

		sh_mv.mv_isa_port2addr = generic_isa_port2addr;
		generic_io_base = mv_io_base;
	}
	if (mv_mmio_enable != 0) {
		sh_mv.mv_readb = generic_readb;
		sh_mv.mv_readw = generic_readw;
		sh_mv.mv_readl = generic_readl;
		sh_mv.mv_writeb = generic_writeb;
		sh_mv.mv_writew = generic_writew;
		sh_mv.mv_writel = generic_writel;
	}
#endif

#define PFN_UP(x)	(((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_DOWN(x)	((x) >> PAGE_SHIFT)
#define PFN_PHYS(x)	((x) << PAGE_SHIFT)

#ifdef CONFIG_DISCONTIGMEM
	NODE_DATA(0)->bdata = &discontig_node_bdata[0];
	NODE_DATA(1)->bdata = &discontig_node_bdata[1];

	bootmap_size = init_bootmem_node(NODE_DATA(1), 
					 PFN_UP(__MEMORY_START_2ND),
					 PFN_UP(__MEMORY_START_2ND),
					 PFN_DOWN(__MEMORY_START_2ND+__MEMORY_SIZE_2ND));
	free_bootmem_node(NODE_DATA(1), __MEMORY_START_2ND, __MEMORY_SIZE_2ND);
	reserve_bootmem_node(NODE_DATA(1), __MEMORY_START_2ND, bootmap_size);
#endif

	/*
	 * Find the highest page frame number we have available
	 */
	max_pfn = PFN_DOWN(__pa(memory_end));

	/*
	 * Determine low and high memory ranges:
	 */
	max_low_pfn = max_pfn;

 	/*
	 * Partially used pages are not usable - thus
	 * we are rounding upwards:
 	 */
	start_pfn = PFN_UP(__pa(&_end));
	/*
	 * Find a proper area for the bootmem bitmap. After this
	 * bootstrap step all allocations (until the page allocator
	 * is intact) must be done via bootmem_alloc().
	 */
	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
					 __MEMORY_START>>PAGE_SHIFT,
					 max_low_pfn);

	/*
	 * Register fully available low RAM pages with the bootmem allocator.
	 */
	{
		unsigned long curr_pfn, last_pfn, pages;

		/*
		 * We are rounding up the start address of usable memory:
		 */
		curr_pfn = PFN_UP(__MEMORY_START);
		/*
		 * ... and at the end of the usable range downwards:
		 */
		last_pfn = PFN_DOWN(__pa(memory_end));

		if (last_pfn > max_low_pfn)
			last_pfn = max_low_pfn;

		pages = last_pfn - curr_pfn;
		free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn),
				  PFN_PHYS(pages));
	}

	/*
	 * Reserve the kernel text and
	 * Reserve the bootmem bitmap. We do this in two steps (first step
	 * was init_bootmem()), because this catches the (definitely buggy)
	 * case of us accidentally initializing the bootmem allocator with
	 * an invalid RAM area.
	 */
	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE,
		(PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);

	/*
	 * reserve physical page 0 - it's a special BIOS page on many boxes,
	 * enabling clean reboots, SMP operation, laptop functions.
	 */
	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);

#ifdef CONFIG_BLK_DEV_INITRD
	if (LOADER_TYPE && INITRD_START) {
		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
			reserve_bootmem_node(NODE_DATA(0), INITRD_START+__MEMORY_START, INITRD_SIZE);
			initrd_start =
				INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
			initrd_end = initrd_start + INITRD_SIZE;
		} else {
			printk("initrd extends beyond end of memory "
			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
				    INITRD_START + INITRD_SIZE,
				    max_low_pfn << PAGE_SHIFT);
			initrd_start = 0;
		}
	}
#endif

#if 0
	/*
	 * Request the standard RAM and ROM resources -
	 * they eat up PCI memory space
	 */
	request_resource(&iomem_resource, ram_resources+0);
	request_resource(&iomem_resource, ram_resources+1);
	request_resource(&iomem_resource, ram_resources+2);
	request_resource(ram_resources+1, &code_resource);
	request_resource(ram_resources+1, &data_resource);
	probe_roms();

	/* request I/O space for devices used on all i[345]86 PCs */
	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
		request_resource(&ioport_resource, standard_io_resources+i);
#endif

#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
	conswitchp = &vga_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
	conswitchp = &dummy_con;
#endif
#endif

	/* Perform the machine specific initialisation */
	if (sh_mv.mv_init_arch != NULL) {
		sh_mv.mv_init_arch();
	}

#if defined(__SH4__)
	init_task.used_math = 0;
	init_task.flags &= ~PF_USEDFPU;
#endif

#ifdef CONFIG_UBC_WAKEUP
	/*
	 * Some brain-damaged loaders decided it would be a good idea to put
	 * the UBC to sleep. This causes some issues when it comes to things
	 * like PTRACE_SINGLESTEP or doing hardware watchpoints in GDB.  So ..
	 * we wake it up and hope that all is well.
	 */
	ubc_wakeup();
#endif

	paging_init();
}
Exemplo n.º 7
0
void __init setup_arch(char **cmdline_p)
{
	unsigned long bootmap_size;
	unsigned long start_pfn, max_pfn, max_low_pfn;

#ifdef CONFIG_EARLY_PRINTK
	extern void enable_early_printk(void);

	enable_early_printk();
#endif
#ifdef CONFIG_CMDLINE_BOOL
        strcpy(COMMAND_LINE, CONFIG_CMDLINE);
#endif

	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);

#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
#endif

	if (!MOUNT_ROOT_RDONLY)
		root_mountflags &= ~MS_RDONLY;
	init_mm.start_code = (unsigned long) _text;
	init_mm.end_code = (unsigned long) _etext;
	init_mm.end_data = (unsigned long) _edata;
	init_mm.brk = (unsigned long) _end;

	code_resource.start = virt_to_bus(_text);
	code_resource.end = virt_to_bus(_etext)-1;
	data_resource.start = virt_to_bus(_etext);
	data_resource.end = virt_to_bus(_edata)-1;

	sh_mv_setup(cmdline_p);

#define PFN_UP(x)	(((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_DOWN(x)	((x) >> PAGE_SHIFT)
#define PFN_PHYS(x)	((x) << PAGE_SHIFT)

	/*
	 * Find the highest page frame number we have available
	 */
	max_pfn = PFN_DOWN(__pa(memory_end));

	/*
	 * Determine low and high memory ranges:
	 */
	max_low_pfn = max_pfn;

	/*
	 * Partially used pages are not usable - thus
	 * we are rounding upwards:
	 */
	start_pfn = PFN_UP(__pa(_end));

	/*
	 * Find a proper area for the bootmem bitmap. After this
	 * bootstrap step all allocations (until the page allocator
	 * is intact) must be done via bootmem_alloc().
	 */
	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
					 __MEMORY_START>>PAGE_SHIFT,
					 max_low_pfn);
	/*
	 * Register fully available low RAM pages with the bootmem allocator.
	 */
	{
		unsigned long curr_pfn, last_pfn, pages;

		/*
		 * We are rounding up the start address of usable memory:
		 */
		curr_pfn = PFN_UP(__MEMORY_START);
		/*
		 * ... and at the end of the usable range downwards:
		 */
		last_pfn = PFN_DOWN(__pa(memory_end));

		if (last_pfn > max_low_pfn)
			last_pfn = max_low_pfn;

		pages = last_pfn - curr_pfn;
		free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn),
				  PFN_PHYS(pages));
	}

	/*
	 * Reserve the kernel text and
	 * Reserve the bootmem bitmap. We do this in two steps (first step
	 * was init_bootmem()), because this catches the (definitely buggy)
	 * case of us accidentally initializing the bootmem allocator with
	 * an invalid RAM area.
	 */
	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE,
		(PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);

	/*
	 * reserve physical page 0 - it's a special BIOS page on many boxes,
	 * enabling clean reboots, SMP operation, laptop functions.
	 */
	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);

#ifdef CONFIG_BLK_DEV_INITRD
	ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
	if (&__rd_start != &__rd_end) {
		LOADER_TYPE = 1;
		INITRD_START = PHYSADDR((unsigned long)&__rd_start) - __MEMORY_START;
		INITRD_SIZE = (unsigned long)&__rd_end - (unsigned long)&__rd_start;
	}

	if (LOADER_TYPE && INITRD_START) {
		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
			reserve_bootmem_node(NODE_DATA(0), INITRD_START+__MEMORY_START, INITRD_SIZE);
			initrd_start =
				INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
			initrd_end = initrd_start + INITRD_SIZE;
		} else {
			printk("initrd extends beyond end of memory "
			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
				    INITRD_START + INITRD_SIZE,
				    max_low_pfn << PAGE_SHIFT);
			initrd_start = 0;
		}
	}
#endif

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#endif

	/* Perform the machine specific initialisation */
	platform_setup();

	paging_init();
}
Exemplo n.º 8
0
void __init do_init_bootmem(void)
{
	int nid;

	min_low_pfn = 0;
	max_low_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;

	if (parse_numa_properties())
		setup_nonnuma();

	for (nid = 0; nid < numnodes; nid++) {
		unsigned long start_paddr, end_paddr;
		int i;
		unsigned long bootmem_paddr;
		unsigned long bootmap_pages;

		if (node_data[nid].node_spanned_pages == 0)
			continue;

		start_paddr = node_data[nid].node_start_pfn * PAGE_SIZE;
		end_paddr = start_paddr + 
				(node_data[nid].node_spanned_pages * PAGE_SIZE);

		dbg("node %d\n", nid);
		dbg("start_paddr = %lx\n", start_paddr);
		dbg("end_paddr = %lx\n", end_paddr);

		NODE_DATA(nid)->bdata = &plat_node_bdata[nid];

		bootmap_pages = bootmem_bootmap_pages((end_paddr - start_paddr) >> PAGE_SHIFT);
		dbg("bootmap_pages = %lx\n", bootmap_pages);

		bootmem_paddr = lmb_alloc_base(bootmap_pages << PAGE_SHIFT,
				PAGE_SIZE, end_paddr);
		dbg("bootmap_paddr = %lx\n", bootmem_paddr);

		init_bootmem_node(NODE_DATA(nid), bootmem_paddr >> PAGE_SHIFT,
				  start_paddr >> PAGE_SHIFT,
				  end_paddr >> PAGE_SHIFT);

		for (i = 0; i < lmb.memory.cnt; i++) {
			unsigned long physbase, size;
			unsigned long type = lmb.memory.region[i].type;

			if (type != LMB_MEMORY_AREA)
				continue;

			physbase = lmb.memory.region[i].physbase;
			size = lmb.memory.region[i].size;

			if (physbase < end_paddr &&
			    (physbase+size) > start_paddr) {
				/* overlaps */
				if (physbase < start_paddr) {
					size -= start_paddr - physbase;
					physbase = start_paddr;
				}

				if (size > end_paddr - start_paddr)
					size = end_paddr - start_paddr;

				dbg("free_bootmem %lx %lx\n", physbase, size);
				free_bootmem_node(NODE_DATA(nid), physbase,
						  size);
			}
		}

		for (i = 0; i < lmb.reserved.cnt; i++) {
			unsigned long physbase = lmb.reserved.region[i].physbase;
			unsigned long size = lmb.reserved.region[i].size;

			if (physbase < end_paddr &&
			    (physbase+size) > start_paddr) {
				/* overlaps */
				if (physbase < start_paddr) {
					size -= start_paddr - physbase;
					physbase = start_paddr;
				}

				if (size > end_paddr - start_paddr)
					size = end_paddr - start_paddr;

				dbg("reserve_bootmem %lx %lx\n", physbase,
				    size);
				reserve_bootmem_node(NODE_DATA(nid), physbase,
						     size);
			}
		}
	}
}