x86_64: move mm

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 files changed, 1 insertions, 3321 deletions

diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 11ef2c37ba5..4208a0ded52 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -75,7 +75,7 @@ head-y := arch/x86_64/kernel/head_64.o arch/x86_64/kernel/head64.o arch/x86_64/k
 
 libs-y 					+= arch/x86/lib/
 core-y					+= arch/x86_64/kernel/ \
-					   arch/x86_64/mm/ \
+					   arch/x86/mm/ \
 					   arch/x86/crypto/ \
 					   arch/x86/vdso/
 core-$(CONFIG_IA32_EMULATION)		+= arch/x86_64/ia32/
diff --git a/arch/x86_64/mm/Makefile b/arch/x86_64/mm/Makefile
deleted file mode 100644
index 7317648e658..00000000000
--- a/arch/x86_64/mm/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/x86/mm/Makefile_32
-else
-include ${srctree}/arch/x86_64/mm/Makefile_64
-endif
diff --git a/arch/x86_64/mm/Makefile_64 b/arch/x86_64/mm/Makefile_64
deleted file mode 100644
index 5c2883cad11..00000000000
--- a/arch/x86_64/mm/Makefile_64
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile for the linux x86_64-specific parts of the memory manager.
-#
-
-obj-y	 := init_64.o fault_64.o ioremap_64.o extable_64.o pageattr_64.o mmap_64.o
-obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-obj-$(CONFIG_NUMA) += numa_64.o
-obj-$(CONFIG_K8_NUMA) += k8topology_64.o
-obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-
-hugetlbpage-y = ../../x86/mm/hugetlbpage.o
diff --git a/arch/x86_64/mm/extable_64.c b/arch/x86_64/mm/extable_64.c
deleted file mode 100644
index 79ac6e7100a..00000000000
--- a/arch/x86_64/mm/extable_64.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * linux/arch/x86_64/mm/extable.c
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-
-/* Simple binary search */
-const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
-	       const struct exception_table_entry *last,
-	       unsigned long value)
-{
-	/* Work around a B stepping K8 bug */
-	if ((value >> 32) == 0)
-		value |= 0xffffffffUL << 32; 
-
-        while (first <= last) {
-		const struct exception_table_entry *mid;
-		long diff;
-
-		mid = (last - first) / 2 + first;
-		diff = mid->insn - value;
-                if (diff == 0)
-                        return mid;
-                else if (diff < 0)
-                        first = mid+1;
-                else
-                        last = mid-1;
-        }
-        return NULL;
-}
diff --git a/arch/x86_64/mm/fault_64.c b/arch/x86_64/mm/fault_64.c
deleted file mode 100644
index 54816adb8e9..00000000000
--- a/arch/x86_64/mm/fault_64.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- *  linux/arch/x86-64/mm/fault.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Copyright (C) 2001,2002 Andi Kleen, SuSE Labs.
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <linux/vt_kern.h>		/* For unblank_screen() */
-#include <linux/compiler.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-#include <linux/uaccess.h>
-#include <linux/kdebug.h>
-
-#include <asm/system.h>
-#include <asm/pgalloc.h>
-#include <asm/smp.h>
-#include <asm/tlbflush.h>
-#include <asm/proto.h>
-#include <asm-generic/sections.h>
-
-/* Page fault error code bits */
-#define PF_PROT	(1<<0)		/* or no page found */
-#define PF_WRITE	(1<<1)
-#define PF_USER	(1<<2)
-#define PF_RSVD	(1<<3)
-#define PF_INSTR	(1<<4)
-
-static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
-
-/* Hook to register for page fault notifications */
-int register_page_fault_notifier(struct notifier_block *nb)
-{
-	vmalloc_sync_all();
-	return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(register_page_fault_notifier);
-
-int unregister_page_fault_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_page_fault_notifier);
-
-static inline int notify_page_fault(struct pt_regs *regs, long err)
-{
-	struct die_args args = {
-		.regs = regs,
-		.str = "page fault",
-		.err = err,
-		.trapnr = 14,
-		.signr = SIGSEGV
-	};
-	return atomic_notifier_call_chain(&notify_page_fault_chain,
-	                                  DIE_PAGE_FAULT, &args);
-}
-
-/* Sometimes the CPU reports invalid exceptions on prefetch.
-   Check that here and ignore.
-   Opcode checker based on code by Richard Brunner */
-static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
-				unsigned long error_code)
-{ 
-	unsigned char *instr;
-	int scan_more = 1;
-	int prefetch = 0; 
-	unsigned char *max_instr;
-
-	/* If it was a exec fault ignore */
-	if (error_code & PF_INSTR)
-		return 0;
-	
-	instr = (unsigned char __user *)convert_rip_to_linear(current, regs);
-	max_instr = instr + 15;
-
-	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
-		return 0;
-
-	while (scan_more && instr < max_instr) { 
-		unsigned char opcode;
-		unsigned char instr_hi;
-		unsigned char instr_lo;
-
-		if (probe_kernel_address(instr, opcode))
-			break; 
-
-		instr_hi = opcode & 0xf0; 
-		instr_lo = opcode & 0x0f; 
-		instr++;
-
-		switch (instr_hi) { 
-		case 0x20:
-		case 0x30:
-			/* Values 0x26,0x2E,0x36,0x3E are valid x86
-			   prefixes.  In long mode, the CPU will signal
-			   invalid opcode if some of these prefixes are
-			   present so we will never get here anyway */
-			scan_more = ((instr_lo & 7) == 0x6);
-			break;
-			
-		case 0x40:
-			/* In AMD64 long mode, 0x40 to 0x4F are valid REX prefixes
-			   Need to figure out under what instruction mode the
-			   instruction was issued ... */
-			/* Could check the LDT for lm, but for now it's good
-			   enough to assume that long mode only uses well known
-			   segments or kernel. */
-			scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
-			break;
-			
-		case 0x60:
-			/* 0x64 thru 0x67 are valid prefixes in all modes. */
-			scan_more = (instr_lo & 0xC) == 0x4;
-			break;		
-		case 0xF0:
-			/* 0xF0, 0xF2, and 0xF3 are valid prefixes in all modes. */
-			scan_more = !instr_lo || (instr_lo>>1) == 1;
-			break;			
-		case 0x00:
-			/* Prefetch instruction is 0x0F0D or 0x0F18 */
-			scan_more = 0;
-			if (probe_kernel_address(instr, opcode))
-				break;
-			prefetch = (instr_lo == 0xF) &&
-				(opcode == 0x0D || opcode == 0x18);
-			break;			
-		default:
-			scan_more = 0;
-			break;
-		} 
-	}
-	return prefetch;
-}
-
-static int bad_address(void *p) 
-{ 
-	unsigned long dummy;
-	return probe_kernel_address((unsigned long *)p, dummy);
-} 
-
-void dump_pagetable(unsigned long address)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-
-	pgd = (pgd_t *)read_cr3();
-
-	pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK); 
-	pgd += pgd_index(address);
-	if (bad_address(pgd)) goto bad;
-	printk("PGD %lx ", pgd_val(*pgd));
-	if (!pgd_present(*pgd)) goto ret; 
-
-	pud = pud_offset(pgd, address);
-	if (bad_address(pud)) goto bad;
-	printk("PUD %lx ", pud_val(*pud));
-	if (!pud_present(*pud))	goto ret;
-
-	pmd = pmd_offset(pud, address);
-	if (bad_address(pmd)) goto bad;
-	printk("PMD %lx ", pmd_val(*pmd));
-	if (!pmd_present(*pmd))	goto ret;	 
-
-	pte = pte_offset_kernel(pmd, address);
-	if (bad_address(pte)) goto bad;
-	printk("PTE %lx", pte_val(*pte)); 
-ret:
-	printk("\n");
-	return;
-bad:
-	printk("BAD\n");
-}
-
-static const char errata93_warning[] = 
-KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
-KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
-KERN_ERR "******* Please consider a BIOS update.\n"
-KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
-
-/* Workaround for K8 erratum #93 & buggy BIOS.
-   BIOS SMM functions are required to use a specific workaround
-   to avoid corruption of the 64bit RIP register on C stepping K8. 
-   A lot of BIOS that didn't get tested properly miss this. 
-   The OS sees this as a page fault with the upper 32bits of RIP cleared.
-   Try to work around it here.
-   Note we only handle faults in kernel here. */
-
-static int is_errata93(struct pt_regs *regs, unsigned long address) 
-{
-	static int warned;
-	if (address != regs->rip)
-		return 0;
-	if ((address >> 32) != 0) 
-		return 0;
-	address |= 0xffffffffUL << 32;
-	if ((address >= (u64)_stext && address <= (u64)_etext) || 
-	    (address >= MODULES_VADDR && address <= MODULES_END)) { 
-		if (!warned) {
-			printk(errata93_warning); 		
-			warned = 1;
-		}
-		regs->rip = address;
-		return 1;
-	}
-	return 0;
-} 
-
-static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
-				 unsigned long error_code)
-{
-	unsigned long flags = oops_begin();
-	struct task_struct *tsk;
-
-	printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
-	       current->comm, address);
-	dump_pagetable(address);
-	tsk = current;
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	__die("Bad pagetable", regs, error_code);
-	oops_end(flags);
-	do_exit(SIGKILL);
-}
-
-/*
- * Handle a fault on the vmalloc area
- *
- * This assumes no large pages in there.
- */
-static int vmalloc_fault(unsigned long address)
-{
-	pgd_t *pgd, *pgd_ref;
-	pud_t *pud, *pud_ref;
-	pmd_t *pmd, *pmd_ref;
-	pte_t *pte, *pte_ref;
-
-	/* Copy kernel mappings over when needed. This can also
-	   happen within a race in page table update. In the later
-	   case just flush. */
-
-	pgd = pgd_offset(current->mm ?: &init_mm, address);
-	pgd_ref = pgd_offset_k(address);
-	if (pgd_none(*pgd_ref))
-		return -1;
-	if (pgd_none(*pgd))
-		set_pgd(pgd, *pgd_ref);
-	else
-		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-
-	/* Below here mismatches are bugs because these lower tables
-	   are shared */
-
-	pud = pud_offset(pgd, address);
-	pud_ref = pud_offset(pgd_ref, address);
-	if (pud_none(*pud_ref))
-		return -1;
-	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
-		BUG();
-	pmd = pmd_offset(pud, address);
-	pmd_ref = pmd_offset(pud_ref, address);
-	if (pmd_none(*pmd_ref))
-		return -1;
-	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
-		BUG();
-	pte_ref = pte_offset_kernel(pmd_ref, address);
-	if (!pte_present(*pte_ref))
-		return -1;
-	pte = pte_offset_kernel(pmd, address);
-	/* Don't use pte_page here, because the mappings can point
-	   outside mem_map, and the NUMA hash lookup cannot handle
-	   that. */
-	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
-		BUG();
-	return 0;
-}
-
-static int page_fault_trace;
-int show_unhandled_signals = 1;
-
-/*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
-					unsigned long error_code)
-{
-	struct task_struct *tsk;
-	struct mm_struct *mm;
-	struct vm_area_struct * vma;
-	unsigned long address;
-	const struct exception_table_entry *fixup;
-	int write, fault;
-	unsigned long flags;
-	siginfo_t info;
-
-	tsk = current;
-	mm = tsk->mm;
-	prefetchw(&mm->mmap_sem);
-
-	/* get the address */
-	address = read_cr2();
-
-	info.si_code = SEGV_MAPERR;
-
-
-	/*
-	 * We fault-in kernel-space virtual memory on-demand. The
-	 * 'reference' page table is init_mm.pgd.
-	 *
-	 * NOTE! We MUST NOT take any locks for this case. We may
-	 * be in an interrupt or a critical region, and should
-	 * only copy the information from the master page table,
-	 * nothing more.
-	 *
-	 * This verifies that the fault happens in kernel space
-	 * (error_code & 4) == 0, and that the fault was not a
-	 * protection error (error_code & 9) == 0.
-	 */
-	if (unlikely(address >= TASK_SIZE64)) {
-		/*
-		 * Don't check for the module range here: its PML4
-		 * is always initialized because it's shared with the main
-		 * kernel text. Only vmalloc may need PML4 syncups.
-		 */
-		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
-		      ((address >= VMALLOC_START && address < VMALLOC_END))) {
-			if (vmalloc_fault(address) >= 0)
-				return;
-		}
-		if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
-			return;
-		/*
-		 * Don't take the mm semaphore here. If we fixup a prefetch
-		 * fault we could otherwise deadlock.
-		 */
-		goto bad_area_nosemaphore;
-	}
-
-	if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
-		return;
-
-	if (likely(regs->eflags & X86_EFLAGS_IF))
-		local_irq_enable();
-
-	if (unlikely(page_fault_trace))
-		printk("pagefault rip:%lx rsp:%lx cs:%lu ss:%lu address %lx error %lx\n",
-		       regs->rip,regs->rsp,regs->cs,regs->ss,address,error_code); 
-
-	if (unlikely(error_code & PF_RSVD))
-		pgtable_bad(address, regs, error_code);
-
-	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
-	 */
-	if (unlikely(in_atomic() || !mm))
-		goto bad_area_nosemaphore;
-
-	/*
-	 * User-mode registers count as a user access even for any
-	 * potential system fault or CPU buglet.
-	 */
-	if (user_mode_vm(regs))
-		error_code |= PF_USER;
-
- again:
-	/* When running in the kernel we expect faults to occur only to
-	 * addresses in user space.  All other faults represent errors in the
-	 * kernel and should generate an OOPS.  Unfortunatly, in the case of an
-	 * erroneous fault occurring in a code path which already holds mmap_sem
-	 * we will deadlock attempting to validate the fault against the
-	 * address space.  Luckily the kernel only validly references user
-	 * space from well defined areas of code, which are listed in the
-	 * exceptions table.
-	 *
-	 * As the vast majority of faults will be valid we will only perform
-	 * the source reference check when there is a possibilty of a deadlock.
-	 * Attempt to lock the address space, if we cannot we then validate the
-	 * source.  If this is invalid we can skip the address space check,
-	 * thus avoiding the deadlock.
-	 */
-	if (!down_read_trylock(&mm->mmap_sem)) {
-		if ((error_code & PF_USER) == 0 &&
-		    !search_exception_tables(regs->rip))
-			goto bad_area_nosemaphore;
-		down_read(&mm->mmap_sem);
-	}
-
-	vma = find_vma(mm, address);
-	if (!vma)
-		goto bad_area;
-	if (likely(vma->vm_start <= address))
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-	if (error_code & 4) {
-		/* Allow userspace just enough access below the stack pointer
-		 * to let the 'enter' instruction work.
-		 */
-		if (address + 65536 + 32 * sizeof(unsigned long) < regs->rsp)
-			goto bad_area;
-	}
-	if (expand_stack(vma, address))
-		goto bad_area;
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
-	info.si_code = SEGV_ACCERR;
-	write = 0;
-	switch (error_code & (PF_PROT|PF_WRITE)) {
-		default:	/* 3: write, present */
-			/* fall through */
-		case PF_WRITE:		/* write, not present */
-			if (!(vma->vm_flags & VM_WRITE))
-				goto bad_area;
-			write++;
-			break;
-		case PF_PROT:		/* read, present */
-			goto bad_area;
-		case 0:			/* read, not present */
-			if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-				goto bad_area;
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-	fault = handle_mm_fault(mm, vma, address, write);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-	up_read(&mm->mmap_sem);
-
-bad_area_nosemaphore:
-	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & PF_USER) {
-
-		/*
-		 * It's possible to have interrupts off here.
-		 */
-		local_irq_enable();
-
-		if (is_prefetch(regs, address, error_code))
-			return;
-
-		/* Work around K8 erratum #100 K8 in compat mode
-		   occasionally jumps to illegal addresses >4GB.  We
-		   catch this here in the page fault handler because
-		   these addresses are not reachable. Just detect this
-		   case and return.  Any code segment in LDT is
-		   compatibility mode. */
-		if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
-		    (address >> 32))
-			return;
-
-		if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
-		    printk_ratelimit()) {
-			printk(
-		       "%s%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n",
-					tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
-					tsk->comm, tsk->pid, address, regs->rip,
-					regs->rsp, error_code);
-		}
-       
-		tsk->thread.cr2 = address;
-		/* Kernel addresses are always protection faults */
-		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
-		tsk->thread.trap_no = 14;
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		/* info.si_code has been set above */
-		info.si_addr = (void __user *)address;
-		force_sig_info(SIGSEGV, &info, tsk);
-		return;
-	}
-
-no_context:
-	
-	/* Are we prepared to handle this kernel fault?  */
-	fixup = search_exception_tables(regs->rip);
-	if (fixup) {
-		regs->rip = fixup->fixup;
-		return;
-	}
-
-	/* 
-	 * Hall of shame of CPU/BIOS bugs.
-	 */
-
- 	if (is_prefetch(regs, address, error_code))
- 		return;
-
-	if (is_errata93(regs, address))
-		return; 
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-
-	flags = oops_begin();
-
-	if (address < PAGE_SIZE)
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-	else
-		printk(KERN_ALERT "Unable to handle kernel paging request");
-	printk(" at %016lx RIP: \n" KERN_ALERT,address);
-	printk_address(regs->rip);
-	dump_pagetable(address);
-	tsk->thread.cr2 = address;
-	tsk->thread.trap_no = 14;
-	tsk->thread.error_code = error_code;
-	__die("Oops", regs, error_code);
-	/* Executive summary in case the body of the oops scrolled away */
-	printk(KERN_EMERG "CR2: %016lx\n", address);
-	oops_end(flags);
-	do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	up_read(&mm->mmap_sem);
-	if (is_init(current)) {
-		yield();
-		goto again;
-	}
-	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & 4)
-		do_group_exit(SIGKILL);
-	goto no_context;
-
-do_sigbus:
-	up_read(&mm->mmap_sem);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!(error_code & PF_USER))
-		goto no_context;
-
-	tsk->thread.cr2 = address;
-	tsk->thread.error_code = error_code;
-	tsk->thread.trap_no = 14;
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void __user *)address;
-	force_sig_info(SIGBUS, &info, tsk);
-	return;
-}
-
-DEFINE_SPINLOCK(pgd_lock);
-LIST_HEAD(pgd_list);
-
-void vmalloc_sync_all(void)
-{
-	/* Note that races in the updates of insync and start aren't 
-	   problematic:
-	   insync can only get set bits added, and updates to start are only
-	   improving performance (without affecting correctness if undone). */
-	static DECLARE_BITMAP(insync, PTRS_PER_PGD);
-	static unsigned long start = VMALLOC_START & PGDIR_MASK;
-	unsigned long address;
-
-	for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
-		if (!test_bit(pgd_index(address), insync)) {
-			const pgd_t *pgd_ref = pgd_offset_k(address);
-			struct page *page;
-
-			if (pgd_none(*pgd_ref))
-				continue;
-			spin_lock(&pgd_lock);
-			list_for_each_entry(page, &pgd_list, lru) {
-				pgd_t *pgd;
-				pgd = (pgd_t *)page_address(page) + pgd_index(address);
-				if (pgd_none(*pgd))
-					set_pgd(pgd, *pgd_ref);
-				else
-					BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
-			}
-			spin_unlock(&pgd_lock);
-			set_bit(pgd_index(address), insync);
-		}
-		if (address == start)
-			start = address + PGDIR_SIZE;
-	}
-	/* Check that there is no need to do the same for the modules area. */
-	BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
-	BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == 
-				(__START_KERNEL & PGDIR_MASK)));
-}
-
-static int __init enable_pagefaulttrace(char *str)
-{
-	page_fault_trace = 1;
-	return 1;
-}
-__setup("pagefaulttrace", enable_pagefaulttrace);
diff --git a/arch/x86_64/mm/init_64.c b/arch/x86_64/mm/init_64.c
deleted file mode 100644
index 458893b376f..00000000000
--- a/arch/x86_64/mm/init_64.c
+++ /dev/null
@@ -1,750 +0,0 @@
-/*
- *  linux/arch/x86_64/mm/init.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Copyright (C) 2000  Pavel Machek <pavel@suse.cz>
- *  Copyright (C) 2002,2003 Andi Kleen <ak@suse.de>
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/pagemap.h>
-#include <linux/bootmem.h>
-#include <linux/proc_fs.h>
-#include <linux/pci.h>
-#include <linux/pfn.h>
-#include <linux/poison.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <linux/memory_hotplug.h>
-#include <linux/nmi.h>
-
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/dma.h>
-#include <asm/fixmap.h>
-#include <asm/e820.h>
-#include <asm/apic.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
-#include <asm/proto.h>
-#include <asm/smp.h>
-#include <asm/sections.h>
-
-#ifndef Dprintk
-#define Dprintk(x...)
-#endif
-
-const struct dma_mapping_ops* dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
-static unsigned long dma_reserve __initdata;
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-/*
- * NOTE: pagetable_init alloc all the fixmap pagetables contiguous on the
- * physical space so we can cache the place of the first one and move
- * around without checking the pgd every time.
- */
-
-void show_mem(void)
-{
-	long i, total = 0, reserved = 0;
-	long shared = 0, cached = 0;
-	pg_data_t *pgdat;
-	struct page *page;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-	printk(KERN_INFO "Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
-
-	for_each_online_pgdat(pgdat) {
-               for (i = 0; i < pgdat->node_spanned_pages; ++i) {
-			/* this loop can take a while with 256 GB and 4k pages
-			   so update the NMI watchdog */
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) {
-				touch_nmi_watchdog();
-			}
-			if (!pfn_valid(pgdat->node_start_pfn + i))
-				continue;
-			page = pfn_to_page(pgdat->node_start_pfn + i);
-			total++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page) - 1;
-               }
-	}
-	printk(KERN_INFO "%lu pages of RAM\n", total);
-	printk(KERN_INFO "%lu reserved pages\n",reserved);
-	printk(KERN_INFO "%lu pages shared\n",shared);
-	printk(KERN_INFO "%lu pages swap cached\n",cached);
-}
-
-int after_bootmem;
-
-static __init void *spp_getpage(void)
-{ 
-	void *ptr;
-	if (after_bootmem)
-		ptr = (void *) get_zeroed_page(GFP_ATOMIC); 
-	else
-		ptr = alloc_bootmem_pages(PAGE_SIZE);
-	if (!ptr || ((unsigned long)ptr & ~PAGE_MASK))
-		panic("set_pte_phys: cannot allocate page data %s\n", after_bootmem?"after bootmem":"");
-
-	Dprintk("spp_getpage %p\n", ptr);
-	return ptr;
-} 
-
-static __init void set_pte_phys(unsigned long vaddr,
-			 unsigned long phys, pgprot_t prot)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte, new_pte;
-
-	Dprintk("set_pte_phys %lx to %lx\n", vaddr, phys);
-
-	pgd = pgd_offset_k(vaddr);
-	if (pgd_none(*pgd)) {
-		printk("PGD FIXMAP MISSING, it should be setup in head.S!\n");
-		return;
-	}
-	pud = pud_offset(pgd, vaddr);
-	if (pud_none(*pud)) {
-		pmd = (pmd_t *) spp_getpage(); 
-		set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER));
-		if (pmd != pmd_offset(pud, 0)) {
-			printk("PAGETABLE BUG #01! %p <-> %p\n", pmd, pmd_offset(pud,0));
-			return;
-		}
-	}
-	pmd = pmd_offset(pud, vaddr);
-	if (pmd_none(*pmd)) {
-		pte = (pte_t *) spp_getpage();
-		set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER));
-		if (pte != pte_offset_kernel(pmd, 0)) {
-			printk("PAGETABLE BUG #02!\n");
-			return;
-		}
-	}
-	new_pte = pfn_pte(phys >> PAGE_SHIFT, prot);
-
-	pte = pte_offset_kernel(pmd, vaddr);
-	if (!pte_none(*pte) &&
-	    pte_val(*pte) != (pte_val(new_pte) & __supported_pte_mask))
-		pte_ERROR(*pte);
-	set_pte(pte, new_pte);
-
-	/*
-	 * It's enough to flush this one mapping.
-	 * (PGE mappings get flushed as well)
-	 */
-	__flush_tlb_one(vaddr);
-}
-
-/* NOTE: this is meant to be run only at boot */
-void __init 
-__set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
-{
-	unsigned long address = __fix_to_virt(idx);
-
-	if (idx >= __end_of_fixed_addresses) {
-		printk("Invalid __set_fixmap\n");
-		return;
-	}
-	set_pte_phys(address, phys, prot);
-}
-
-unsigned long __meminitdata table_start, table_end;
-
-static __meminit void *alloc_low_page(unsigned long *phys)
-{ 
-	unsigned long pfn = table_end++;
-	void *adr;
-
-	if (after_bootmem) {
-		adr = (void *)get_zeroed_page(GFP_ATOMIC);
-		*phys = __pa(adr);
-		return adr;
-	}
-
-	if (pfn >= end_pfn) 
-		panic("alloc_low_page: ran out of memory"); 
-
-	adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE);
-	memset(adr, 0, PAGE_SIZE);
-	*phys  = pfn * PAGE_SIZE;
-	return adr;
-}
-
-static __meminit void unmap_low_page(void *adr)
-{ 
-
-	if (after_bootmem)
-		return;
-
-	early_iounmap(adr, PAGE_SIZE);
-} 
-
-/* Must run before zap_low_mappings */
-__meminit void *early_ioremap(unsigned long addr, unsigned long size)
-{
-	unsigned long vaddr;
-	pmd_t *pmd, *last_pmd;
-	int i, pmds;
-
-	pmds = ((addr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE;
-	vaddr = __START_KERNEL_map;
-	pmd = level2_kernel_pgt;
-	last_pmd = level2_kernel_pgt + PTRS_PER_PMD - 1;
-	for (; pmd <= last_pmd; pmd++, vaddr += PMD_SIZE) {
-		for (i = 0; i < pmds; i++) {
-			if (pmd_present(pmd[i]))
-				goto next;
-		}
-		vaddr += addr & ~PMD_MASK;
-		addr &= PMD_MASK;
-		for (i = 0; i < pmds; i++, addr += PMD_SIZE)
-			set_pmd(pmd + i,__pmd(addr | _KERNPG_TABLE | _PAGE_PSE));
-		__flush_tlb();
-		return (void *)vaddr;
-	next:
-		;
-	}
-	printk("early_ioremap(0x%lx, %lu) failed\n", addr, size);
-	return NULL;
-}
-
-/* To avoid virtual aliases later */
-__meminit void early_iounmap(void *addr, unsigned long size)
-{
-	unsigned long vaddr;
-	pmd_t *pmd;
-	int i, pmds;
-
-	vaddr = (unsigned long)addr;
-	pmds = ((vaddr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE;
-	pmd = level2_kernel_pgt + pmd_index(vaddr);
-	for (i = 0; i < pmds; i++)
-		pmd_clear(pmd + i);
-	__flush_tlb();
-}
-
-static void __meminit
-phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
-{
-	int i = pmd_index(address);
-
-	for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
-		unsigned long entry;
-		pmd_t *pmd = pmd_page + pmd_index(address);
-
-		if (address >= end) {
-			if (!after_bootmem)
-				for (; i < PTRS_PER_PMD; i++, pmd++)
-					set_pmd(pmd, __pmd(0));
-			break;
-		}
-
-		if (pmd_val(*pmd))
-			continue;
-
-		entry = _PAGE_NX|_PAGE_PSE|_KERNPG_TABLE|_PAGE_GLOBAL|address;
-		entry &= __supported_pte_mask;
-		set_pmd(pmd, __pmd(entry));
-	}
-}
-
-static void __meminit
-phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end)
-{
-	pmd_t *pmd = pmd_offset(pud,0);
-	spin_lock(&init_mm.page_table_lock);
-	phys_pmd_init(pmd, address, end);
-	spin_unlock(&init_mm.page_table_lock);
-	__flush_tlb_all();
-}
-
-static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
-{ 
-	int i = pud_index(addr);
-
-
-	for (; i < PTRS_PER_PUD; i++, addr = (addr & PUD_MASK) + PUD_SIZE ) {
-		unsigned long pmd_phys;
-		pud_t *pud = pud_page + pud_index(addr);
-		pmd_t *pmd;
-
-		if (addr >= end)
-			break;
-
-		if (!after_bootmem && !e820_any_mapped(addr,addr+PUD_SIZE,0)) {
-			set_pud(pud, __pud(0)); 
-			continue;
-		} 
-
-		if (pud_val(*pud)) {
-			phys_pmd_update(pud, addr, end);
-			continue;
-		}
-
-		pmd = alloc_low_page(&pmd_phys);
-		spin_lock(&init_mm.page_table_lock);
-		set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE));
-		phys_pmd_init(pmd, addr, end);
-		spin_unlock(&init_mm.page_table_lock);
-		unmap_low_page(pmd);
-	}
-	__flush_tlb();
-} 
-
-static void __init find_early_table_space(unsigned long end)
-{
-	unsigned long puds, pmds, tables, start;
-
-	puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
-	pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
-	tables = round_up(puds * sizeof(pud_t), PAGE_SIZE) +
-		 round_up(pmds * sizeof(pmd_t), PAGE_SIZE);
-
- 	/* RED-PEN putting page tables only on node 0 could
- 	   cause a hotspot and fill up ZONE_DMA. The page tables
- 	   need roughly 0.5KB per GB. */
- 	start = 0x8000;
- 	table_start = find_e820_area(start, end, tables);
-	if (table_start == -1UL)
-		panic("Cannot find space for the kernel page tables");
-
-	table_start >>= PAGE_SHIFT;
-	table_end = table_start;
-
-	early_printk("kernel direct mapping tables up to %lx @ %lx-%lx\n",
-		end, table_start << PAGE_SHIFT,
-		(table_start << PAGE_SHIFT) + tables);
-}
-
-/* Setup the direct mapping of the physical memory at PAGE_OFFSET.
-   This runs before bootmem is initialized and gets pages directly from the 
-   physical memory. To access them they are temporarily mapped. */
-void __meminit init_memory_mapping(unsigned long start, unsigned long end)
-{ 
-	unsigned long next; 
-
-	Dprintk("init_memory_mapping\n");
-
-	/* 
-	 * Find space for the kernel direct mapping tables.
-	 * Later we should allocate these tables in the local node of the memory
-	 * mapped.  Unfortunately this is done currently before the nodes are 
-	 * discovered.
-	 */
-	if (!after_bootmem)
-		find_early_table_space(end);
-
-	start = (unsigned long)__va(start);
-	end = (unsigned long)__va(end);
-
-	for (; start < end; start = next) {
-		unsigned long pud_phys; 
-		pgd_t *pgd = pgd_offset_k(start);
-		pud_t *pud;
-
-		if (after_bootmem)
-			pud = pud_offset(pgd, start & PGDIR_MASK);
-		else
-			pud = alloc_low_page(&pud_phys);
-
-		next = start + PGDIR_SIZE;
-		if (next > end) 
-			next = end; 
-		phys_pud_init(pud, __pa(start), __pa(next));
-		if (!after_bootmem)
-			set_pgd(pgd_offset_k(start), mk_kernel_pgd(pud_phys));
-		unmap_low_page(pud);
-	} 
-
-	if (!after_bootmem)
-		mmu_cr4_features = read_cr4();
-	__flush_tlb_all();
-}
-
-#ifndef CONFIG_NUMA
-void __init paging_init(void)
-{
-	unsigned long max_zone_pfns[MAX_NR_ZONES];
-	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
-	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
-	max_zone_pfns[ZONE_NORMAL] = end_pfn;
-
-	memory_present(0, 0, end_pfn);
-	sparse_init();
-	free_area_init_nodes(max_zone_pfns);
-}
-#endif
-
-/* Unmap a kernel mapping if it exists. This is useful to avoid prefetches
-   from the CPU leading to inconsistent cache lines. address and size
-   must be aligned to 2MB boundaries. 
-   Does nothing when the mapping doesn't exist. */
-void __init clear_kernel_mapping(unsigned long address, unsigned long size) 
-{
-	unsigned long end = address + size;
-
-	BUG_ON(address & ~LARGE_PAGE_MASK);
-	BUG_ON(size & ~LARGE_PAGE_MASK); 
-	
-	for (; address < end; address += LARGE_PAGE_SIZE) { 
-		pgd_t *pgd = pgd_offset_k(address);
-		pud_t *pud;
-		pmd_t *pmd;
-		if (pgd_none(*pgd))
-			continue;
-		pud = pud_offset(pgd, address);
-		if (pud_none(*pud))
-			continue; 
-		pmd = pmd_offset(pud, address);
-		if (!pmd || pmd_none(*pmd))
-			continue; 
-		if (0 == (pmd_val(*pmd) & _PAGE_PSE)) { 
-			/* Could handle this, but it should not happen currently. */
-			printk(KERN_ERR 
-	       "clear_kernel_mapping: mapping has been split. will leak memory\n"); 
-			pmd_ERROR(*pmd); 
-		}
-		set_pmd(pmd, __pmd(0)); 		
-	}
-	__flush_tlb_all();
-} 
-
-/*
- * Memory hotplug specific functions
- */
-void online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	init_page_count(page);
-	__free_page(page);
-	totalram_pages++;
-	num_physpages++;
-}
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-/*
- * Memory is added always to NORMAL zone. This means you will never get
- * additional DMA/DMA32 memory.
- */
-int arch_add_memory(int nid, u64 start, u64 size)
-{
-	struct pglist_data *pgdat = NODE_DATA(nid);
-	struct zone *zone = pgdat->node_zones + ZONE_NORMAL;
-	unsigned long start_pfn = start >> PAGE_SHIFT;
-	unsigned long nr_pages = size >> PAGE_SHIFT;
-	int ret;
-
-	init_memory_mapping(start, (start + size -1));
-
-	ret = __add_pages(zone, start_pfn, nr_pages);
-	if (ret)
-		goto error;
-
-	return ret;
-error:
-	printk("%s: Problem encountered in __add_pages!\n", __func__);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(arch_add_memory);
-
-int remove_memory(u64 start, u64 size)
-{
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(remove_memory);
-
-#if !defined(CONFIG_ACPI_NUMA) && defined(CONFIG_NUMA)
-int memory_add_physaddr_to_nid(u64 start)
-{
-	return 0;
-}
-EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-#endif
-
-#endif /* CONFIG_MEMORY_HOTPLUG */
-
-#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
-/*
- * Memory Hotadd without sparsemem. The mem_maps have been allocated in advance,
- * just online the pages.
- */
-int __add_pages(struct zone *z, unsigned long start_pfn, unsigned long nr_pages)
-{
-	int err = -EIO;
-	unsigned long pfn;
-	unsigned long total = 0, mem = 0;
-	for (pfn = start_pfn; pfn < start_pfn + nr_pages; pfn++) {
-		if (pfn_valid(pfn)) {
-			online_page(pfn_to_page(pfn));
-			err = 0;
-			mem++;
-		}
-		total++;
-	}
-	if (!err) {
-		z->spanned_pages += total;
-		z->present_pages += mem;
-		z->zone_pgdat->node_spanned_pages += total;
-		z->zone_pgdat->node_present_pages += mem;
-	}
-	return err;
-}
-#endif
-
-static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel, kcore_modules,
-			 kcore_vsyscall;
-
-void __init mem_init(void)
-{
-	long codesize, reservedpages, datasize, initsize;
-
-	pci_iommu_alloc();
-
-	/* clear the zero-page */
-	memset(empty_zero_page, 0, PAGE_SIZE);
-
-	reservedpages = 0;
-
-	/* this will put all low memory onto the freelists */
-#ifdef CONFIG_NUMA
-	totalram_pages = numa_free_all_bootmem();
-#else
-	totalram_pages = free_all_bootmem();
-#endif
-	reservedpages = end_pfn - totalram_pages -
-					absent_pages_in_range(0, end_pfn);
-
-	after_bootmem = 1;
-
-	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
-	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
-	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
-	/* Register memory areas for /proc/kcore */
-	kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); 
-	kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, 
-		   VMALLOC_END-VMALLOC_START);
-	kclist_add(&kcore_kernel, &_stext, _end - _stext);
-	kclist_add(&kcore_modules, (void *)MODULES_VADDR, MODULES_LEN);
-	kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START, 
-				 VSYSCALL_END - VSYSCALL_START);
-
-	printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, %ldk data, %ldk init)\n",
-		(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
-		end_pfn << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10);
-}
-
-void free_init_pages(char *what, unsigned long begin, unsigned long end)
-{
-	unsigned long addr;
-
-	if (begin >= end)
-		return;
-
-	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
-	for (addr = begin; addr < end; addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
-		memset((void *)(addr & ~(PAGE_SIZE-1)),
-			POISON_FREE_INITMEM, PAGE_SIZE);
-		if (addr >= __START_KERNEL_map)
-			change_page_attr_addr(addr, 1, __pgprot(0));
-		free_page(addr);
-		totalram_pages++;
-	}
-	if (addr > __START_KERNEL_map)
-		global_flush_tlb();
-}
-
-void free_initmem(void)
-{
-	free_init_pages("unused kernel memory",
-			(unsigned long)(&__init_begin),
-			(unsigned long)(&__init_end));
-}
-
-#ifdef CONFIG_DEBUG_RODATA
-
-void mark_rodata_ro(void)
-{
-	unsigned long start = (unsigned long)_stext, end;
-
-#ifdef CONFIG_HOTPLUG_CPU
-	/* It must still be possible to apply SMP alternatives. */
-	if (num_possible_cpus() > 1)
-		start = (unsigned long)_etext;
-#endif
-
-#ifdef CONFIG_KPROBES
-	start = (unsigned long)__start_rodata;
-#endif
-	
-	end = (unsigned long)__end_rodata;
-	start = (start + PAGE_SIZE - 1) & PAGE_MASK;
-	end &= PAGE_MASK;
-	if (end <= start)
-		return;
-
-	change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO);
-
-	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
-	       (end - start) >> 10);
-
-	/*
-	 * change_page_attr_addr() requires a global_flush_tlb() call after it.
-	 * We do this after the printk so that if something went wrong in the
-	 * change, the printk gets out at least to give a better debug hint
-	 * of who is the culprit.
-	 */
-	global_flush_tlb();
-}
-#endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_init_pages("initrd memory", start, end);
-}
-#endif
-
-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);
-	}
-}
-
-int kern_addr_valid(unsigned long addr) 
-{ 
-	unsigned long above = ((long)addr) >> __VIRTUAL_MASK_SHIFT;
-       pgd_t *pgd;
-       pud_t *pud;
-       pmd_t *pmd;
-       pte_t *pte;
-
-	if (above != 0 && above != -1UL)
-		return 0; 
-	
-	pgd = pgd_offset_k(addr);
-	if (pgd_none(*pgd))
-		return 0;
-
-	pud = pud_offset(pgd, addr);
-	if (pud_none(*pud))
-		return 0; 
-
-	pmd = pmd_offset(pud, addr);
-	if (pmd_none(*pmd))
-		return 0;
-	if (pmd_large(*pmd))
-		return pfn_valid(pmd_pfn(*pmd));
-
-	pte = pte_offset_kernel(pmd, addr);
-	if (pte_none(*pte))
-		return 0;
-	return pfn_valid(pte_pfn(*pte));
-}
-
-/* A pseudo VMA to allow ptrace access for the vsyscall page.  This only
-   covers the 64bit vsyscall page now. 32bit has a real VMA now and does
-   not need special handling anymore. */
-
-static struct vm_area_struct gate_vma = {
-	.vm_start = VSYSCALL_START,
-	.vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES << PAGE_SHIFT),
-	.vm_page_prot = PAGE_READONLY_EXEC,
-	.vm_flags = VM_READ | VM_EXEC
-};
-
-struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
-{
-#ifdef CONFIG_IA32_EMULATION
-	if (test_tsk_thread_flag(tsk, TIF_IA32))
-		return NULL;
-#endif
-	return &gate_vma;
-}
-
-int in_gate_area(struct task_struct *task, unsigned long addr)
-{
-	struct vm_area_struct *vma = get_gate_vma(task);
-	if (!vma)
-		return 0;
-	return (addr >= vma->vm_start) && (addr < vma->vm_end);
-}
-
-/* Use this when you have no reliable task/vma, typically from interrupt
- * context.  It is less reliable than using the task's vma and may give
- * false positives.
- */
-int in_gate_area_no_task(unsigned long addr)
-{
-	return (addr >= VSYSCALL_START) && (addr < VSYSCALL_END);
-}
-
-void * __init alloc_bootmem_high_node(pg_data_t *pgdat, unsigned long size)
-{
-	return __alloc_bootmem_core(pgdat->bdata, size,
-			SMP_CACHE_BYTES, (4UL*1024*1024*1024), 0);
-}
-
-const char *arch_vma_name(struct vm_area_struct *vma)
-{
-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
-		return "[vdso]";
-	if (vma == &gate_vma)
-		return "[vsyscall]";
-	return NULL;
-}
diff --git a/arch/x86_64/mm/ioremap_64.c b/arch/x86_64/mm/ioremap_64.c
deleted file mode 100644
index 6cac90aa503..00000000000
--- a/arch/x86_64/mm/ioremap_64.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * arch/x86_64/mm/ioremap.c
- *
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- */
-
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/io.h>
-
-#include <asm/pgalloc.h>
-#include <asm/fixmap.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-#include <asm/proto.h>
-
-unsigned long __phys_addr(unsigned long x)
-{
-	if (x >= __START_KERNEL_map)
-		return x - __START_KERNEL_map + phys_base;
-	return x - PAGE_OFFSET;
-}
-EXPORT_SYMBOL(__phys_addr);
-
-#define ISA_START_ADDRESS      0xa0000
-#define ISA_END_ADDRESS                0x100000
-
-/*
- * Fix up the linear direct mapping of the kernel to avoid cache attribute
- * conflicts.
- */
-static int
-ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-					unsigned long flags)
-{
-	int err = 0;
-	if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
-		unsigned long npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-		unsigned long vaddr = (unsigned long) __va(phys_addr);
-
-		/*
- 		 * Must use a address here and not struct page because the phys addr
-		 * can be a in hole between nodes and not have an memmap entry.
-		 */
-		err = change_page_attr_addr(vaddr,npages,__pgprot(__PAGE_KERNEL|flags));
-		if (!err)
-			global_flush_tlb();
-	}
-	return err;
-}
-
-/*
- * Generic mapping function
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
-	void * addr;
-	struct vm_struct * area;
-	unsigned long offset, last_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * Don't remap the low PCI/ISA area, it's always mapped..
-	 */
-	if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
-		return (__force void __iomem *)phys_to_virt(phys_addr);
-
-#ifdef CONFIG_FLATMEM
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (last_addr < virt_to_phys(high_memory)) {
-		char *t_addr, *t_end;
- 		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-	   
-		for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++)
-			if(!PageReserved(page))
-				return NULL;
-	}
-#endif
-
-	pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_GLOBAL
-			  | _PAGE_DIRTY | _PAGE_ACCESSED | flags);
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP | (flags << 20));
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	addr = area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
-		return NULL;
-	}
-	if (flags && ioremap_change_attr(phys_addr, size, flags) < 0) {
-		area->flags &= 0xffffff;
-		vunmap(addr);
-		return NULL;
-	}
-	return (__force void __iomem *) (offset + (char *)addr);
-}
-EXPORT_SYMBOL(__ioremap);
-
-/**
- * ioremap_nocache     -   map bus memory into CPU space
- * @offset:    bus address of the memory
- * @size:      size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address. 
- *
- * This version of ioremap ensures that the memory is marked uncachable
- * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many 
- * busses. In particular driver authors should read up on PCI writes
- *
- * It's useful if some control registers are in such an area and
- * write combining or read caching is not desirable:
- * 
- * Must be freed with iounmap.
- */
-
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
-{
-	return __ioremap(phys_addr, size, _PAGE_PCD);
-}
-EXPORT_SYMBOL(ioremap_nocache);
-
-/**
- * iounmap - Free a IO remapping
- * @addr: virtual address from ioremap_*
- *
- * Caller must ensure there is only one unmapping for the same pointer.
- */
-void iounmap(volatile void __iomem *addr)
-{
-	struct vm_struct *p, *o;
-
-	if (addr <= high_memory) 
-		return; 
-	if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-		addr < phys_to_virt(ISA_END_ADDRESS))
-		return;
-
-	addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr);
-	/* Use the vm area unlocked, assuming the caller
-	   ensures there isn't another iounmap for the same address
-	   in parallel. Reuse of the virtual address is prevented by
-	   leaving it in the global lists until we're done with it.
-	   cpa takes care of the direct mappings. */
-	read_lock(&vmlist_lock);
-	for (p = vmlist; p; p = p->next) {
-		if (p->addr == addr)
-			break;
-	}
-	read_unlock(&vmlist_lock);
-
-	if (!p) {
-		printk("iounmap: bad address %p\n", addr);
-		dump_stack();
-		return;
-	}
-
-	/* Reset the direct mapping. Can block */
-	if (p->flags >> 20)
-		ioremap_change_attr(p->phys_addr, p->size, 0);
-
-	/* Finally remove it */
-	o = remove_vm_area((void *)addr);
-	BUG_ON(p != o || o == NULL);
-	kfree(p); 
-}
-EXPORT_SYMBOL(iounmap);
-
diff --git a/arch/x86_64/mm/k8topology_64.c b/arch/x86_64/mm/k8topology_64.c
deleted file mode 100644
index a96006f7ae0..00000000000
--- a/arch/x86_64/mm/k8topology_64.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* 
- * AMD K8 NUMA support.
- * Discover the memory map and associated nodes.
- * 
- * This version reads it directly from the K8 northbridge.
- * 
- * Copyright 2002,2003 Andi Kleen, SuSE Labs.
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/module.h>
-#include <linux/nodemask.h>
-#include <asm/io.h>
-#include <linux/pci_ids.h>
-#include <asm/types.h>
-#include <asm/mmzone.h>
-#include <asm/proto.h>
-#include <asm/e820.h>
-#include <asm/pci-direct.h>
-#include <asm/numa.h>
-
-static __init int find_northbridge(void)
-{
-	int num; 
-
-	for (num = 0; num < 32; num++) { 
-		u32 header;
-		
-		header = read_pci_config(0, num, 0, 0x00);  
-		if (header != (PCI_VENDOR_ID_AMD | (0x1100<<16)))
-			continue; 	
-
-		header = read_pci_config(0, num, 1, 0x00); 
-		if (header != (PCI_VENDOR_ID_AMD | (0x1101<<16)))
-			continue;	
-		return num; 
-	} 
-
-	return -1; 	
-}
-
-int __init k8_scan_nodes(unsigned long start, unsigned long end)
-{ 
-	unsigned long prevbase;
-	struct bootnode nodes[8];
-	int nodeid, i, j, nb;
-	unsigned char nodeids[8];
-	int found = 0;
-	u32 reg;
-	unsigned numnodes;
-	unsigned num_cores;
-
-	if (!early_pci_allowed())
-		return -1;
-
-	nb = find_northbridge(); 
-	if (nb < 0) 
-		return nb;
-
-	printk(KERN_INFO "Scanning NUMA topology in Northbridge %d\n", nb); 
-
-	num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
-	printk(KERN_INFO "CPU has %d num_cores\n", num_cores);
-
-	reg = read_pci_config(0, nb, 0, 0x60); 
-	numnodes = ((reg >> 4) & 0xF) + 1;
-	if (numnodes <= 1)
-		return -1;
-
-	printk(KERN_INFO "Number of nodes %d\n", numnodes);
-
-	memset(&nodes,0,sizeof(nodes)); 
-	prevbase = 0;
-	for (i = 0; i < 8; i++) { 
-		unsigned long base,limit; 
-		u32 nodeid;
-		
-		base = read_pci_config(0, nb, 1, 0x40 + i*8);
-		limit = read_pci_config(0, nb, 1, 0x44 + i*8);
-
-		nodeid = limit & 7; 
-		nodeids[i] = nodeid;
-		if ((base & 3) == 0) { 
-			if (i < numnodes)
-				printk("Skipping disabled node %d\n", i); 
-			continue;
-		} 
-		if (nodeid >= numnodes) {
-			printk("Ignoring excess node %d (%lx:%lx)\n", nodeid,
-			       base, limit); 
-			continue;
-		} 
-
-		if (!limit) { 
-			printk(KERN_INFO "Skipping node entry %d (base %lx)\n", i,
-			       base);
-			continue;
-		}
-		if ((base >> 8) & 3 || (limit >> 8) & 3) {
-			printk(KERN_ERR "Node %d using interleaving mode %lx/%lx\n", 
-			       nodeid, (base>>8)&3, (limit>>8) & 3); 
-			return -1; 
-		}	
-		if (node_isset(nodeid, node_possible_map)) {
-			printk(KERN_INFO "Node %d already present. Skipping\n", 
-			       nodeid);
-			continue;
-		}
-
-		limit >>= 16; 
-		limit <<= 24; 
-		limit |= (1<<24)-1;
-		limit++;
-
-		if (limit > end_pfn << PAGE_SHIFT)
-			limit = end_pfn << PAGE_SHIFT;
-		if (limit <= base)
-			continue; 
-			
-		base >>= 16;
-		base <<= 24; 
-
-		if (base < start) 
-			base = start; 
-		if (limit > end) 
-			limit = end; 
-		if (limit == base) { 
-			printk(KERN_ERR "Empty node %d\n", nodeid); 
-			continue; 
-		}
-		if (limit < base) { 
-			printk(KERN_ERR "Node %d bogus settings %lx-%lx.\n",
-			       nodeid, base, limit); 			       
-			continue;
-		} 
-		
-		/* Could sort here, but pun for now. Should not happen anyroads. */
-		if (prevbase > base) { 
-			printk(KERN_ERR "Node map not sorted %lx,%lx\n",
-			       prevbase,base);
-			return -1;
-		}
-			
-		printk(KERN_INFO "Node %d MemBase %016lx Limit %016lx\n", 
-		       nodeid, base, limit); 
-		
-		found++;
-		
-		nodes[nodeid].start = base; 
-		nodes[nodeid].end = limit;
-		e820_register_active_regions(nodeid,
-				nodes[nodeid].start >> PAGE_SHIFT,
-				nodes[nodeid].end >> PAGE_SHIFT);
-
-		prevbase = base;
-
-		node_set(nodeid, node_possible_map);
-	} 
-
-	if (!found)
-		return -1; 
-
-	memnode_shift = compute_hash_shift(nodes, 8);
-	if (memnode_shift < 0) { 
-		printk(KERN_ERR "No NUMA node hash function found. Contact maintainer\n"); 
-		return -1; 
-	} 
-	printk(KERN_INFO "Using node hash shift of %d\n", memnode_shift); 
-
-	for (i = 0; i < 8; i++) {
-		if (nodes[i].start != nodes[i].end) { 
-			nodeid = nodeids[i];
-			for (j = 0; j < num_cores; j++)
-				apicid_to_node[(nodeid * num_cores) + j] = i;
-			setup_node_bootmem(i, nodes[i].start, nodes[i].end); 
-		} 
-	}
-
-	numa_init_array();
-	return 0;
-} 
diff --git a/arch/x86_64/mm/mmap_64.c b/arch/x86_64/mm/mmap_64.c
deleted file mode 100644
index 80bba0dc000..00000000000
--- a/arch/x86_64/mm/mmap_64.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Copyright 2005 Andi Kleen, SuSE Labs.
- * Licensed under GPL, v.2
- */
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/random.h>
-#include <asm/ia32.h>
-
-/* Notebook: move the mmap code from sys_x86_64.c over here. */
-
-void arch_pick_mmap_layout(struct mm_struct *mm)
-{
-#ifdef CONFIG_IA32_EMULATION
-	if (current_thread_info()->flags & _TIF_IA32)
-		return ia32_pick_mmap_layout(mm);
-#endif
-	mm->mmap_base = TASK_UNMAPPED_BASE;
-	if (current->flags & PF_RANDOMIZE) {
-		/* Add 28bit randomness which is about 40bits of address space
-		   because mmap base has to be page aligned.
- 		   or ~1/128 of the total user VM
-	   	   (total user address space is 47bits) */
-		unsigned rnd = get_random_int() & 0xfffffff;
-		mm->mmap_base += ((unsigned long)rnd) << PAGE_SHIFT;
-	}
-	mm->get_unmapped_area = arch_get_unmapped_area;
-	mm->unmap_area = arch_unmap_area;
-}
-
diff --git a/arch/x86_64/mm/numa_64.c b/arch/x86_64/mm/numa_64.c
deleted file mode 100644
index 6da23552226..00000000000
--- a/arch/x86_64/mm/numa_64.c
+++ /dev/null
@@ -1,648 +0,0 @@
-/* 
- * Generic VM initialization for x86-64 NUMA setups.
- * Copyright 2002,2003 Andi Kleen, SuSE Labs.
- */ 
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/mmzone.h>
-#include <linux/ctype.h>
-#include <linux/module.h>
-#include <linux/nodemask.h>
-
-#include <asm/e820.h>
-#include <asm/proto.h>
-#include <asm/dma.h>
-#include <asm/numa.h>
-#include <asm/acpi.h>
-
-#ifndef Dprintk
-#define Dprintk(x...)
-#endif
-
-struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
-bootmem_data_t plat_node_bdata[MAX_NUMNODES];
-
-struct memnode memnode;
-
-unsigned char cpu_to_node[NR_CPUS] __read_mostly = {
-	[0 ... NR_CPUS-1] = NUMA_NO_NODE
-};
-unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
- 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
-};
-cpumask_t node_to_cpumask[MAX_NUMNODES] __read_mostly;
-
-int numa_off __initdata;
-unsigned long __initdata nodemap_addr;
-unsigned long __initdata nodemap_size;
-
-
-/*
- * Given a shift value, try to populate memnodemap[]
- * Returns :
- * 1 if OK
- * 0 if memnodmap[] too small (of shift too small)
- * -1 if node overlap or lost ram (shift too big)
- */
-static int __init
-populate_memnodemap(const struct bootnode *nodes, int numnodes, int shift)
-{
-	int i; 
-	int res = -1;
-	unsigned long addr, end;
-
-	memset(memnodemap, 0xff, memnodemapsize);
-	for (i = 0; i < numnodes; i++) {
-		addr = nodes[i].start;
-		end = nodes[i].end;
-		if (addr >= end)
-			continue;
-		if ((end >> shift) >= memnodemapsize)
-			return 0;
-		do {
-			if (memnodemap[addr >> shift] != 0xff)
-				return -1;
-			memnodemap[addr >> shift] = i;
-			addr += (1UL << shift);
-		} while (addr < end);
-		res = 1;
-	} 
-	return res;
-}
-
-static int __init allocate_cachealigned_memnodemap(void)
-{
-	unsigned long pad, pad_addr;
-
-	memnodemap = memnode.embedded_map;
-	if (memnodemapsize <= 48)
-		return 0;
-
-	pad = L1_CACHE_BYTES - 1;
-	pad_addr = 0x8000;
-	nodemap_size = pad + memnodemapsize;
-	nodemap_addr = find_e820_area(pad_addr, end_pfn<<PAGE_SHIFT,
-				      nodemap_size);
-	if (nodemap_addr == -1UL) {
-		printk(KERN_ERR
-		       "NUMA: Unable to allocate Memory to Node hash map\n");
-		nodemap_addr = nodemap_size = 0;
-		return -1;
-	}
-	pad_addr = (nodemap_addr + pad) & ~pad;
-	memnodemap = phys_to_virt(pad_addr);
-
-	printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n",
-	       nodemap_addr, nodemap_addr + nodemap_size);
-	return 0;
-}
-
-/*
- * The LSB of all start and end addresses in the node map is the value of the
- * maximum possible shift.
- */
-static int __init
-extract_lsb_from_nodes (const struct bootnode *nodes, int numnodes)
-{
-	int i, nodes_used = 0;
-	unsigned long start, end;
-	unsigned long bitfield = 0, memtop = 0;
-
-	for (i = 0; i < numnodes; i++) {
-		start = nodes[i].start;
-		end = nodes[i].end;
-		if (start >= end)
-			continue;
-		bitfield |= start;
-		nodes_used++;
-		if (end > memtop)
-			memtop = end;
-	}
-	if (nodes_used <= 1)
-		i = 63;
-	else
-		i = find_first_bit(&bitfield, sizeof(unsigned long)*8);
-	memnodemapsize = (memtop >> i)+1;
-	return i;
-}
-
-int __init compute_hash_shift(struct bootnode *nodes, int numnodes)
-{
-	int shift;
-
-	shift = extract_lsb_from_nodes(nodes, numnodes);
-	if (allocate_cachealigned_memnodemap())
-		return -1;
-	printk(KERN_DEBUG "NUMA: Using %d for the hash shift.\n",
-		shift);
-
-	if (populate_memnodemap(nodes, numnodes, shift) != 1) {
-		printk(KERN_INFO
-	"Your memory is not aligned you need to rebuild your kernel "
-	"with a bigger NODEMAPSIZE shift=%d\n",
-			shift);
-		return -1;
-	}
-	return shift;
-}
-
-#ifdef CONFIG_SPARSEMEM
-int early_pfn_to_nid(unsigned long pfn)
-{
-	return phys_to_nid(pfn << PAGE_SHIFT);
-}
-#endif
-
-static void * __init
-early_node_mem(int nodeid, unsigned long start, unsigned long end,
-	      unsigned long size)
-{
-	unsigned long mem = find_e820_area(start, end, size);
-	void *ptr;
-	if (mem != -1L)
-		return __va(mem);
-	ptr = __alloc_bootmem_nopanic(size,
-				SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
-	if (ptr == 0) {
-		printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
-			size, nodeid);
-		return NULL;
-	}
-	return ptr;
-}
-
-/* Initialize bootmem allocator for a node */
-void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
-{ 
-	unsigned long start_pfn, end_pfn, bootmap_pages, bootmap_size, bootmap_start; 
-	unsigned long nodedata_phys;
-	void *bootmap;
-	const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE);
-
-	start = round_up(start, ZONE_ALIGN); 
-
-	printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid, start, end);
-
-	start_pfn = start >> PAGE_SHIFT;
-	end_pfn = end >> PAGE_SHIFT;
-
-	node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size);
-	if (node_data[nodeid] == NULL)
-		return;
-	nodedata_phys = __pa(node_data[nodeid]);
-
-	memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
-	NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
-	NODE_DATA(nodeid)->node_start_pfn = start_pfn;
-	NODE_DATA(nodeid)->node_spanned_pages = end_pfn - start_pfn;
-
-	/* Find a place for the bootmem map */
-	bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn); 
-	bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
-	bootmap = early_node_mem(nodeid, bootmap_start, end,
-					bootmap_pages<<PAGE_SHIFT);
-	if (bootmap == NULL)  {
-		if (nodedata_phys < start || nodedata_phys >= end)
-			free_bootmem((unsigned long)node_data[nodeid],pgdat_size);
-		node_data[nodeid] = NULL;
-		return;
-	}
-	bootmap_start = __pa(bootmap);
-	Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages); 
-	
-	bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
-					 bootmap_start >> PAGE_SHIFT, 
-					 start_pfn, end_pfn); 
-
-	free_bootmem_with_active_regions(nodeid, end);
-
-	reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size); 
-	reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start, bootmap_pages<<PAGE_SHIFT);
-#ifdef CONFIG_ACPI_NUMA
-	srat_reserve_add_area(nodeid);
-#endif
-	node_set_online(nodeid);
-} 
-
-/* Initialize final allocator for a zone */
-void __init setup_node_zones(int nodeid)
-{ 
-	unsigned long start_pfn, end_pfn, memmapsize, limit;
-
- 	start_pfn = node_start_pfn(nodeid);
- 	end_pfn = node_end_pfn(nodeid);
-
-	Dprintk(KERN_INFO "Setting up memmap for node %d %lx-%lx\n",
-		nodeid, start_pfn, end_pfn);
-
-	/* Try to allocate mem_map at end to not fill up precious <4GB
-	   memory. */
-	memmapsize = sizeof(struct page) * (end_pfn-start_pfn);
-	limit = end_pfn << PAGE_SHIFT;
-#ifdef CONFIG_FLAT_NODE_MEM_MAP
-	NODE_DATA(nodeid)->node_mem_map = 
-		__alloc_bootmem_core(NODE_DATA(nodeid)->bdata, 
-				memmapsize, SMP_CACHE_BYTES, 
-				round_down(limit - memmapsize, PAGE_SIZE), 
-				limit);
-#endif
-} 
-
-void __init numa_init_array(void)
-{
-	int rr, i;
-	/* There are unfortunately some poorly designed mainboards around
-	   that only connect memory to a single CPU. This breaks the 1:1 cpu->node
-	   mapping. To avoid this fill in the mapping for all possible
-	   CPUs, as the number of CPUs is not known yet. 
-	   We round robin the existing nodes. */
-	rr = first_node(node_online_map);
-	for (i = 0; i < NR_CPUS; i++) {
-		if (cpu_to_node[i] != NUMA_NO_NODE)
-			continue;
- 		numa_set_node(i, rr);
-		rr = next_node(rr, node_online_map);
-		if (rr == MAX_NUMNODES)
-			rr = first_node(node_online_map);
-	}
-
-}
-
-#ifdef CONFIG_NUMA_EMU
-/* Numa emulation */
-char *cmdline __initdata;
-
-/*
- * Setups up nid to range from addr to addr + size.  If the end boundary is
- * greater than max_addr, then max_addr is used instead.  The return value is 0
- * if there is additional memory left for allocation past addr and -1 otherwise.
- * addr is adjusted to be at the end of the node.
- */
-static int __init setup_node_range(int nid, struct bootnode *nodes, u64 *addr,
-				   u64 size, u64 max_addr)
-{
-	int ret = 0;
-	nodes[nid].start = *addr;
-	*addr += size;
-	if (*addr >= max_addr) {
-		*addr = max_addr;
-		ret = -1;
-	}
-	nodes[nid].end = *addr;
-	node_set(nid, node_possible_map);
-	printk(KERN_INFO "Faking node %d at %016Lx-%016Lx (%LuMB)\n", nid,
-	       nodes[nid].start, nodes[nid].end,
-	       (nodes[nid].end - nodes[nid].start) >> 20);
-	return ret;
-}
-
-/*
- * Splits num_nodes nodes up equally starting at node_start.  The return value
- * is the number of nodes split up and addr is adjusted to be at the end of the
- * last node allocated.
- */
-static int __init split_nodes_equally(struct bootnode *nodes, u64 *addr,
-				      u64 max_addr, int node_start,
-				      int num_nodes)
-{
-	unsigned int big;
-	u64 size;
-	int i;
-
-	if (num_nodes <= 0)
-		return -1;
-	if (num_nodes > MAX_NUMNODES)
-		num_nodes = MAX_NUMNODES;
-	size = (max_addr - *addr - e820_hole_size(*addr, max_addr)) /
-	       num_nodes;
-	/*
-	 * Calculate the number of big nodes that can be allocated as a result
-	 * of consolidating the leftovers.
-	 */
-	big = ((size & ~FAKE_NODE_MIN_HASH_MASK) * num_nodes) /
-	      FAKE_NODE_MIN_SIZE;
-
-	/* Round down to nearest FAKE_NODE_MIN_SIZE. */
-	size &= FAKE_NODE_MIN_HASH_MASK;
-	if (!size) {
-		printk(KERN_ERR "Not enough memory for each node.  "
-		       "NUMA emulation disabled.\n");
-		return -1;
-	}
-
-	for (i = node_start; i < num_nodes + node_start; i++) {
-		u64 end = *addr + size;
-		if (i < big)
-			end += FAKE_NODE_MIN_SIZE;
-		/*
-		 * The final node can have the remaining system RAM.  Other
-		 * nodes receive roughly the same amount of available pages.
-		 */
-		if (i == num_nodes + node_start - 1)
-			end = max_addr;
-		else
-			while (end - *addr - e820_hole_size(*addr, end) <
-			       size) {
-				end += FAKE_NODE_MIN_SIZE;
-				if (end > max_addr) {
-					end = max_addr;
-					break;
-				}
-			}
-		if (setup_node_range(i, nodes, addr, end - *addr, max_addr) < 0)
-			break;
-	}
-	return i - node_start + 1;
-}
-
-/*
- * Splits the remaining system RAM into chunks of size.  The remaining memory is
- * always assigned to a final node and can be asymmetric.  Returns the number of
- * nodes split.
- */
-static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr,
-				      u64 max_addr, int node_start, u64 size)
-{
-	int i = node_start;
-	size = (size << 20) & FAKE_NODE_MIN_HASH_MASK;
-	while (!setup_node_range(i++, nodes, addr, size, max_addr))
-		;
-	return i - node_start;
-}
-
-/*
- * Sets up the system RAM area from start_pfn to end_pfn according to the
- * numa=fake command-line option.
- */
-static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn)
-{
-	struct bootnode nodes[MAX_NUMNODES];
-	u64 addr = start_pfn << PAGE_SHIFT;
-	u64 max_addr = end_pfn << PAGE_SHIFT;
-	int num_nodes = 0;
-	int coeff_flag;
-	int coeff = -1;
-	int num = 0;
-	u64 size;
-	int i;
-
-	memset(&nodes, 0, sizeof(nodes));
-	/*
-	 * If the numa=fake command-line is just a single number N, split the
-	 * system RAM into N fake nodes.
-	 */
-	if (!strchr(cmdline, '*') && !strchr(cmdline, ',')) {
-		num_nodes = split_nodes_equally(nodes, &addr, max_addr, 0,
-						simple_strtol(cmdline, NULL, 0));
-		if (num_nodes < 0)
-			return num_nodes;
-		goto out;
-	}
-
-	/* Parse the command line. */
-	for (coeff_flag = 0; ; cmdline++) {
-		if (*cmdline && isdigit(*cmdline)) {
-			num = num * 10 + *cmdline - '0';
-			continue;
-		}
-		if (*cmdline == '*') {
-			if (num > 0)
-				coeff = num;
-			coeff_flag = 1;
-		}
-		if (!*cmdline || *cmdline == ',') {
-			if (!coeff_flag)
-				coeff = 1;
-			/*
-			 * Round down to the nearest FAKE_NODE_MIN_SIZE.
-			 * Command-line coefficients are in megabytes.
-			 */
-			size = ((u64)num << 20) & FAKE_NODE_MIN_HASH_MASK;
-			if (size)
-				for (i = 0; i < coeff; i++, num_nodes++)
-					if (setup_node_range(num_nodes, nodes,
-						&addr, size, max_addr) < 0)
-						goto done;
-			if (!*cmdline)
-				break;
-			coeff_flag = 0;
-			coeff = -1;
-		}
-		num = 0;
-	}
-done:
-	if (!num_nodes)
-		return -1;
-	/* Fill remainder of system RAM, if appropriate. */
-	if (addr < max_addr) {
-		if (coeff_flag && coeff < 0) {
-			/* Split remaining nodes into num-sized chunks */
-			num_nodes += split_nodes_by_size(nodes, &addr, max_addr,
-							 num_nodes, num);
-			goto out;
-		}
-		switch (*(cmdline - 1)) {
-		case '*':
-			/* Split remaining nodes into coeff chunks */
-			if (coeff <= 0)
-				break;
-			num_nodes += split_nodes_equally(nodes, &addr, max_addr,
-							 num_nodes, coeff);
-			break;
-		case ',':
-			/* Do not allocate remaining system RAM */
-			break;
-		default:
-			/* Give one final node */
-			setup_node_range(num_nodes, nodes, &addr,
-					 max_addr - addr, max_addr);
-			num_nodes++;
-		}
-	}
-out:
-	memnode_shift = compute_hash_shift(nodes, num_nodes);
-	if (memnode_shift < 0) {
-		memnode_shift = 0;
-		printk(KERN_ERR "No NUMA hash function found.  NUMA emulation "
-		       "disabled.\n");
-		return -1;
-	}
-
-	/*
-	 * We need to vacate all active ranges that may have been registered by
-	 * SRAT and set acpi_numa to -1 so that srat_disabled() always returns
-	 * true.  NUMA emulation has succeeded so we will not scan ACPI nodes.
-	 */
-	remove_all_active_ranges();
-#ifdef CONFIG_ACPI_NUMA
-	acpi_numa = -1;
-#endif
-	for_each_node_mask(i, node_possible_map) {
-		e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
-						nodes[i].end >> PAGE_SHIFT);
- 		setup_node_bootmem(i, nodes[i].start, nodes[i].end);
-	}
-	acpi_fake_nodes(nodes, num_nodes);
- 	numa_init_array();
- 	return 0;
-}
-#endif /* CONFIG_NUMA_EMU */
-
-void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
-{ 
-	int i;
-
-	nodes_clear(node_possible_map);
-
-#ifdef CONFIG_NUMA_EMU
-	if (cmdline && !numa_emulation(start_pfn, end_pfn))
- 		return;
-	nodes_clear(node_possible_map);
-#endif
-
-#ifdef CONFIG_ACPI_NUMA
-	if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
-					  end_pfn << PAGE_SHIFT))
- 		return;
-	nodes_clear(node_possible_map);
-#endif
-
-#ifdef CONFIG_K8_NUMA
-	if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT))
-		return;
-	nodes_clear(node_possible_map);
-#endif
-	printk(KERN_INFO "%s\n",
-	       numa_off ? "NUMA turned off" : "No NUMA configuration found");
-
-	printk(KERN_INFO "Faking a node at %016lx-%016lx\n", 
-	       start_pfn << PAGE_SHIFT,
-	       end_pfn << PAGE_SHIFT); 
-		/* setup dummy node covering all memory */ 
-	memnode_shift = 63; 
-	memnodemap = memnode.embedded_map;
-	memnodemap[0] = 0;
-	nodes_clear(node_online_map);
-	node_set_online(0);
-	node_set(0, node_possible_map);
-	for (i = 0; i < NR_CPUS; i++)
-		numa_set_node(i, 0);
-	node_to_cpumask[0] = cpumask_of_cpu(0);
-	e820_register_active_regions(0, start_pfn, end_pfn);
-	setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
-}
-
-__cpuinit void numa_add_cpu(int cpu)
-{
-	set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
-} 
-
-void __cpuinit numa_set_node(int cpu, int node)
-{
-	cpu_pda(cpu)->nodenumber = node;
-	cpu_to_node[cpu] = node;
-}
-
-unsigned long __init numa_free_all_bootmem(void) 
-{ 
-	int i;
-	unsigned long pages = 0;
-	for_each_online_node(i) {
-		pages += free_all_bootmem_node(NODE_DATA(i));
-	}
-	return pages;
-} 
-
-void __init paging_init(void)
-{ 
-	int i;
-	unsigned long max_zone_pfns[MAX_NR_ZONES];
-	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
-	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
-	max_zone_pfns[ZONE_NORMAL] = end_pfn;
-
-	sparse_memory_present_with_active_regions(MAX_NUMNODES);
-	sparse_init();
-
-	for_each_online_node(i) {
-		setup_node_zones(i); 
-	}
-
-	free_area_init_nodes(max_zone_pfns);
-} 
-
-static __init int numa_setup(char *opt)
-{ 
-	if (!opt)
-		return -EINVAL;
-	if (!strncmp(opt,"off",3))
-		numa_off = 1;
-#ifdef CONFIG_NUMA_EMU
-	if (!strncmp(opt, "fake=", 5))
-		cmdline = opt + 5;
-#endif
-#ifdef CONFIG_ACPI_NUMA
- 	if (!strncmp(opt,"noacpi",6))
- 		acpi_numa = -1;
-	if (!strncmp(opt,"hotadd=", 7))
-		hotadd_percent = simple_strtoul(opt+7, NULL, 10);
-#endif
-	return 0;
-} 
-
-early_param("numa", numa_setup);
-
-/*
- * Setup early cpu_to_node.
- *
- * Populate cpu_to_node[] only if x86_cpu_to_apicid[],
- * and apicid_to_node[] tables have valid entries for a CPU.
- * This means we skip cpu_to_node[] initialisation for NUMA
- * emulation and faking node case (when running a kernel compiled
- * for NUMA on a non NUMA box), which is OK as cpu_to_node[]
- * is already initialized in a round robin manner at numa_init_array,
- * prior to this call, and this initialization is good enough
- * for the fake NUMA cases.
- */
-void __init init_cpu_to_node(void)
-{
-	int i;
- 	for (i = 0; i < NR_CPUS; i++) {
-		u8 apicid = x86_cpu_to_apicid[i];
-		if (apicid == BAD_APICID)
-			continue;
-		if (apicid_to_node[apicid] == NUMA_NO_NODE)
-			continue;
-		numa_set_node(i,apicid_to_node[apicid]);
-	}
-}
-
-EXPORT_SYMBOL(cpu_to_node);
-EXPORT_SYMBOL(node_to_cpumask);
-EXPORT_SYMBOL(memnode);
-EXPORT_SYMBOL(node_data);
-
-#ifdef CONFIG_DISCONTIGMEM
-/*
- * Functions to convert PFNs from/to per node page addresses.
- * These are out of line because they are quite big.
- * They could be all tuned by pre caching more state.
- * Should do that.
- */
-
-int pfn_valid(unsigned long pfn)
-{
-	unsigned nid;
-	if (pfn >= num_physpages)
-		return 0;
-	nid = pfn_to_nid(pfn);
-	if (nid == 0xff)
-		return 0;
-	return pfn >= node_start_pfn(nid) && (pfn) < node_end_pfn(nid);
-}
-EXPORT_SYMBOL(pfn_valid);
-#endif
diff --git a/arch/x86_64/mm/pageattr_64.c b/arch/x86_64/mm/pageattr_64.c
deleted file mode 100644
index 10b9809ce82..00000000000
--- a/arch/x86_64/mm/pageattr_64.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/* 
- * Copyright 2002 Andi Kleen, SuSE Labs. 
- * Thanks to Ben LaHaise for precious feedback.
- */ 
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <asm/uaccess.h>
-#include <asm/processor.h>
-#include <asm/tlbflush.h>
-#include <asm/io.h>
-
-pte_t *lookup_address(unsigned long address)
-{ 
-	pgd_t *pgd = pgd_offset_k(address);
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	if (pgd_none(*pgd))
-		return NULL;
-	pud = pud_offset(pgd, address);
-	if (!pud_present(*pud))
-		return NULL; 
-	pmd = pmd_offset(pud, address);
-	if (!pmd_present(*pmd))
-		return NULL; 
-	if (pmd_large(*pmd))
-		return (pte_t *)pmd;
-	pte = pte_offset_kernel(pmd, address);
-	if (pte && !pte_present(*pte))
-		pte = NULL; 
-	return pte;
-} 
-
-static struct page *split_large_page(unsigned long address, pgprot_t prot,
-				     pgprot_t ref_prot)
-{ 
-	int i; 
-	unsigned long addr;
-	struct page *base = alloc_pages(GFP_KERNEL, 0);
-	pte_t *pbase;
-	if (!base) 
-		return NULL;
-	/*
-	 * page_private is used to track the number of entries in
-	 * the page table page have non standard attributes.
-	 */
-	SetPagePrivate(base);
-	page_private(base) = 0;
-
-	address = __pa(address);
-	addr = address & LARGE_PAGE_MASK; 
-	pbase = (pte_t *)page_address(base);
-	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
-		pbase[i] = pfn_pte(addr >> PAGE_SHIFT, 
-				   addr == address ? prot : ref_prot);
-	}
-	return base;
-} 
-
-static void cache_flush_page(void *adr)
-{
-	int i;
-	for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
-		asm volatile("clflush (%0)" :: "r" (adr + i));
-}
-
-static void flush_kernel_map(void *arg)
-{
-	struct list_head *l = (struct list_head *)arg;
-	struct page *pg;
-
-	/* When clflush is available always use it because it is
-	   much cheaper than WBINVD. */
-	/* clflush is still broken. Disable for now. */
-	if (1 || !cpu_has_clflush)
-		asm volatile("wbinvd" ::: "memory");
-	else list_for_each_entry(pg, l, lru) {
-		void *adr = page_address(pg);
-		cache_flush_page(adr);
-	}
-	__flush_tlb_all();
-}
-
-static inline void flush_map(struct list_head *l)
-{	
-	on_each_cpu(flush_kernel_map, l, 1, 1);
-}
-
-static LIST_HEAD(deferred_pages); /* protected by init_mm.mmap_sem */
-
-static inline void save_page(struct page *fpage)
-{
-	if (!test_and_set_bit(PG_arch_1, &fpage->flags))
-		list_add(&fpage->lru, &deferred_pages);
-}
-
-/* 
- * No more special protections in this 2/4MB area - revert to a
- * large page again. 
- */
-static void revert_page(unsigned long address, pgprot_t ref_prot)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t large_pte;
-	unsigned long pfn;
-
-	pgd = pgd_offset_k(address);
-	BUG_ON(pgd_none(*pgd));
-	pud = pud_offset(pgd,address);
-	BUG_ON(pud_none(*pud));
-	pmd = pmd_offset(pud, address);
-	BUG_ON(pmd_val(*pmd) & _PAGE_PSE);
-	pfn = (__pa(address) & LARGE_PAGE_MASK) >> PAGE_SHIFT;
-	large_pte = pfn_pte(pfn, ref_prot);
-	large_pte = pte_mkhuge(large_pte);
-	set_pte((pte_t *)pmd, large_pte);
-}      
-
-static int
-__change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot,
-				   pgprot_t ref_prot)
-{ 
-	pte_t *kpte; 
-	struct page *kpte_page;
-	pgprot_t ref_prot2;
-
-	kpte = lookup_address(address);
-	if (!kpte) return 0;
-	kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
-	BUG_ON(PageLRU(kpte_page));
-	BUG_ON(PageCompound(kpte_page));
-	if (pgprot_val(prot) != pgprot_val(ref_prot)) { 
-		if (!pte_huge(*kpte)) {
-			set_pte(kpte, pfn_pte(pfn, prot));
-		} else {
- 			/*
-			 * split_large_page will take the reference for this
-			 * change_page_attr on the split page.
- 			 */
-			struct page *split;
-			ref_prot2 = pte_pgprot(pte_clrhuge(*kpte));
-			split = split_large_page(address, prot, ref_prot2);
-			if (!split)
-				return -ENOMEM;
-			set_pte(kpte, mk_pte(split, ref_prot2));
-			kpte_page = split;
-		}
-		page_private(kpte_page)++;
-	} else if (!pte_huge(*kpte)) {
-		set_pte(kpte, pfn_pte(pfn, ref_prot));
-		BUG_ON(page_private(kpte_page) == 0);
-		page_private(kpte_page)--;
-	} else
-		BUG();
-
-	/* on x86-64 the direct mapping set at boot is not using 4k pages */
- 	BUG_ON(PageReserved(kpte_page));
-
-	save_page(kpte_page);
-	if (page_private(kpte_page) == 0)
-		revert_page(address, ref_prot);
-	return 0;
-} 
-
-/*
- * Change the page attributes of an page in the linear mapping.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- * 
- * The caller needs to ensure that there are no conflicting mappings elsewhere.
- * This function only deals with the kernel linear map.
- * 
- * Caller must call global_flush_tlb() after this.
- */
-int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
-{
-	int err = 0, kernel_map = 0;
-	int i; 
-
-	if (address >= __START_KERNEL_map
-	    && address < __START_KERNEL_map + KERNEL_TEXT_SIZE) {
-		address = (unsigned long)__va(__pa(address));
-		kernel_map = 1;
-	}
-
-	down_write(&init_mm.mmap_sem);
-	for (i = 0; i < numpages; i++, address += PAGE_SIZE) {
-		unsigned long pfn = __pa(address) >> PAGE_SHIFT;
-
-		if (!kernel_map || pte_present(pfn_pte(0, prot))) {
-			err = __change_page_attr(address, pfn, prot, PAGE_KERNEL);
-			if (err)
-				break;
-		}
-		/* Handle kernel mapping too which aliases part of the
-		 * lowmem */
-		if (__pa(address) < KERNEL_TEXT_SIZE) {
-			unsigned long addr2;
-			pgprot_t prot2;
-			addr2 = __START_KERNEL_map + __pa(address);
-			/* Make sure the kernel mappings stay executable */
-			prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
-			err = __change_page_attr(addr2, pfn, prot2,
-						 PAGE_KERNEL_EXEC);
-		} 
-	} 	
-	up_write(&init_mm.mmap_sem); 
-	return err;
-}
-
-/* Don't call this for MMIO areas that may not have a mem_map entry */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
-{
-	unsigned long addr = (unsigned long)page_address(page);
-	return change_page_attr_addr(addr, numpages, prot);
-}
-
-void global_flush_tlb(void)
-{ 
-	struct page *pg, *next;
-	struct list_head l;
-
-	down_read(&init_mm.mmap_sem);
-	list_replace_init(&deferred_pages, &l);
-	up_read(&init_mm.mmap_sem);
-
-	flush_map(&l);
-
-	list_for_each_entry_safe(pg, next, &l, lru) {
-		list_del(&pg->lru);
-		clear_bit(PG_arch_1, &pg->flags);
-		if (page_private(pg) != 0)
-			continue;
-		ClearPagePrivate(pg);
-		__free_page(pg);
-	} 
-} 
-
-EXPORT_SYMBOL(change_page_attr);
-EXPORT_SYMBOL(global_flush_tlb);
diff --git a/arch/x86_64/mm/srat_64.c b/arch/x86_64/mm/srat_64.c
deleted file mode 100644
index acdf03e1914..00000000000
--- a/arch/x86_64/mm/srat_64.c
+++ /dev/null
@@ -1,566 +0,0 @@
-/*
- * ACPI 3.0 based NUMA setup
- * Copyright 2004 Andi Kleen, SuSE Labs.
- *
- * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
- *
- * Called from acpi_numa_init while reading the SRAT and SLIT tables.
- * Assumes all memory regions belonging to a single proximity domain
- * are in one chunk. Holes between them will be included in the node.
- */
-
-#include <linux/kernel.h>
-#include <linux/acpi.h>
-#include <linux/mmzone.h>
-#include <linux/bitmap.h>
-#include <linux/module.h>
-#include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/mm.h>
-#include <asm/proto.h>
-#include <asm/numa.h>
-#include <asm/e820.h>
-
-int acpi_numa __initdata;
-
-static struct acpi_table_slit *acpi_slit;
-
-static nodemask_t nodes_parsed __initdata;
-static struct bootnode nodes[MAX_NUMNODES] __initdata;
-static struct bootnode nodes_add[MAX_NUMNODES];
-static int found_add_area __initdata;
-int hotadd_percent __initdata = 0;
-
-/* Too small nodes confuse the VM badly. Usually they result
-   from BIOS bugs. */
-#define NODE_MIN_SIZE (4*1024*1024)
-
-static __init int setup_node(int pxm)
-{
-	return acpi_map_pxm_to_node(pxm);
-}
-
-static __init int conflicting_nodes(unsigned long start, unsigned long end)
-{
-	int i;
-	for_each_node_mask(i, nodes_parsed) {
-		struct bootnode *nd = &nodes[i];
-		if (nd->start == nd->end)
-			continue;
-		if (nd->end > start && nd->start < end)
-			return i;
-		if (nd->end == end && nd->start == start)
-			return i;
-	}
-	return -1;
-}
-
-static __init void cutoff_node(int i, unsigned long start, unsigned long end)
-{
-	struct bootnode *nd = &nodes[i];
-
-	if (found_add_area)
-		return;
-
-	if (nd->start < start) {
-		nd->start = start;
-		if (nd->end < nd->start)
-			nd->start = nd->end;
-	}
-	if (nd->end > end) {
-		nd->end = end;
-		if (nd->start > nd->end)
-			nd->start = nd->end;
-	}
-}
-
-static __init void bad_srat(void)
-{
-	int i;
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
-	acpi_numa = -1;
-	found_add_area = 0;
-	for (i = 0; i < MAX_LOCAL_APIC; i++)
-		apicid_to_node[i] = NUMA_NO_NODE;
-	for (i = 0; i < MAX_NUMNODES; i++)
-		nodes_add[i].start = nodes[i].end = 0;
-	remove_all_active_ranges();
-}
-
-static __init inline int srat_disabled(void)
-{
-	return numa_off || acpi_numa < 0;
-}
-
-/*
- * A lot of BIOS fill in 10 (= no distance) everywhere. This messes
- * up the NUMA heuristics which wants the local node to have a smaller
- * distance than the others.
- * Do some quick checks here and only use the SLIT if it passes.
- */
-static __init int slit_valid(struct acpi_table_slit *slit)
-{
-	int i, j;
-	int d = slit->locality_count;
-	for (i = 0; i < d; i++) {
-		for (j = 0; j < d; j++)  {
-			u8 val = slit->entry[d*i + j];
-			if (i == j) {
-				if (val != LOCAL_DISTANCE)
-					return 0;
-			} else if (val <= LOCAL_DISTANCE)
-				return 0;
-		}
-	}
-	return 1;
-}
-
-/* Callback for SLIT parsing */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-	if (!slit_valid(slit)) {
-		printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
-		return;
-	}
-	acpi_slit = slit;
-}
-
-/* Callback for Proximity Domain -> LAPIC mapping */
-void __init
-acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
-{
-	int pxm, node;
-	if (srat_disabled())
-		return;
-	if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) {
-		bad_srat();
-		return;
-	}
-	if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
-		return;
-	pxm = pa->proximity_domain_lo;
-	node = setup_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
-		bad_srat();
-		return;
-	}
-	apicid_to_node[pa->apic_id] = node;
-	acpi_numa = 1;
-	printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",
-	       pxm, pa->apic_id, node);
-}
-
-#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
-/*
- * Protect against too large hotadd areas that would fill up memory.
- */
-static int hotadd_enough_memory(struct bootnode *nd)
-{
-	static unsigned long allocated;
-	static unsigned long last_area_end;
-	unsigned long pages = (nd->end - nd->start) >> PAGE_SHIFT;
-	long mem = pages * sizeof(struct page);
-	unsigned long addr;
-	unsigned long allowed;
-	unsigned long oldpages = pages;
-
-	if (mem < 0)
-		return 0;
-	allowed = (end_pfn - absent_pages_in_range(0, end_pfn)) * PAGE_SIZE;
-	allowed = (allowed / 100) * hotadd_percent;
-	if (allocated + mem > allowed) {
-		unsigned long range;
-		/* Give them at least part of their hotadd memory upto hotadd_percent
-		   It would be better to spread the limit out
-		   over multiple hotplug areas, but that is too complicated
-		   right now */
-		if (allocated >= allowed)
-			return 0;
-		range = allowed - allocated;
-		pages = (range / PAGE_SIZE);
-		mem = pages * sizeof(struct page);
-		nd->end = nd->start + range;
-	}
-	/* Not completely fool proof, but a good sanity check */
-	addr = find_e820_area(last_area_end, end_pfn<<PAGE_SHIFT, mem);
-	if (addr == -1UL)
-		return 0;
-	if (pages != oldpages)
-		printk(KERN_NOTICE "SRAT: Hotadd area limited to %lu bytes\n",
-			pages << PAGE_SHIFT);
-	last_area_end = addr + mem;
-	allocated += mem;
-	return 1;
-}
-
-static int update_end_of_memory(unsigned long end)
-{
-	found_add_area = 1;
-	if ((end >> PAGE_SHIFT) > end_pfn)
-		end_pfn = end >> PAGE_SHIFT;
-	return 1;
-}
-
-static inline int save_add_info(void)
-{
-	return hotadd_percent > 0;
-}
-#else
-int update_end_of_memory(unsigned long end) {return -1;}
-static int hotadd_enough_memory(struct bootnode *nd) {return 1;}
-#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-#endif
-/*
- * Update nodes_add and decide if to include add are in the zone.
- * Both SPARSE and RESERVE need nodes_add infomation.
- * This code supports one contigious hot add area per node.
- */
-static int reserve_hotadd(int node, unsigned long start, unsigned long end)
-{
-	unsigned long s_pfn = start >> PAGE_SHIFT;
-	unsigned long e_pfn = end >> PAGE_SHIFT;
-	int ret = 0, changed = 0;
-	struct bootnode *nd = &nodes_add[node];
-
-	/* I had some trouble with strange memory hotadd regions breaking
-	   the boot. Be very strict here and reject anything unexpected.
-	   If you want working memory hotadd write correct SRATs.
-
-	   The node size check is a basic sanity check to guard against
-	   mistakes */
-	if ((signed long)(end - start) < NODE_MIN_SIZE) {
-		printk(KERN_ERR "SRAT: Hotplug area too small\n");
-		return -1;
-	}
-
-	/* This check might be a bit too strict, but I'm keeping it for now. */
-	if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) {
-		printk(KERN_ERR
-			"SRAT: Hotplug area %lu -> %lu has existing memory\n",
-			s_pfn, e_pfn);
-		return -1;
-	}
-
-	if (!hotadd_enough_memory(&nodes_add[node]))  {
-		printk(KERN_ERR "SRAT: Hotplug area too large\n");
-		return -1;
-	}
-
-	/* Looks good */
-
-	if (nd->start == nd->end) {
-		nd->start = start;
-		nd->end = end;
-		changed = 1;
-	} else {
-		if (nd->start == end) {
-			nd->start = start;
-			changed = 1;
-		}
-		if (nd->end == start) {
-			nd->end = end;
-			changed = 1;
-		}
-		if (!changed)
-			printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n");
-	}
-
-	ret = update_end_of_memory(nd->end);
-
-	if (changed)
-	 	printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n", nd->start, nd->end);
-	return ret;
-}
-
-/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
-void __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
-	struct bootnode *nd, oldnode;
-	unsigned long start, end;
-	int node, pxm;
-	int i;
-
-	if (srat_disabled())
-		return;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
-		bad_srat();
-		return;
-	}
-	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
-		return;
-
-	if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
-		return;
-	start = ma->base_address;
-	end = start + ma->length;
-	pxm = ma->proximity_domain;
-	node = setup_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
-		bad_srat();
-		return;
-	}
-	i = conflicting_nodes(start, end);
-	if (i == node) {
-		printk(KERN_WARNING
-		"SRAT: Warning: PXM %d (%lx-%lx) overlaps with itself (%Lx-%Lx)\n",
-			pxm, start, end, nodes[i].start, nodes[i].end);
-	} else if (i >= 0) {
-		printk(KERN_ERR
-		       "SRAT: PXM %d (%lx-%lx) overlaps with PXM %d (%Lx-%Lx)\n",
-		       pxm, start, end, node_to_pxm(i),
-			nodes[i].start, nodes[i].end);
-		bad_srat();
-		return;
-	}
-	nd = &nodes[node];
-	oldnode = *nd;
-	if (!node_test_and_set(node, nodes_parsed)) {
-		nd->start = start;
-		nd->end = end;
-	} else {
-		if (start < nd->start)
-			nd->start = start;
-		if (nd->end < end)
-			nd->end = end;
-	}
-
-	printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
-	       nd->start, nd->end);
-	e820_register_active_regions(node, nd->start >> PAGE_SHIFT,
-						nd->end >> PAGE_SHIFT);
-	push_node_boundaries(node, nd->start >> PAGE_SHIFT,
-						nd->end >> PAGE_SHIFT);
-
-	if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) &&
-	    (reserve_hotadd(node, start, end) < 0)) {
-		/* Ignore hotadd region. Undo damage */
-		printk(KERN_NOTICE "SRAT: Hotplug region ignored\n");
-		*nd = oldnode;
-		if ((nd->start | nd->end) == 0)
-			node_clear(node, nodes_parsed);
-	}
-}
-
-/* Sanity check to catch more bad SRATs (they are amazingly common).
-   Make sure the PXMs cover all memory. */
-static int __init nodes_cover_memory(const struct bootnode *nodes)
-{
-	int i;
-	unsigned long pxmram, e820ram;
-
-	pxmram = 0;
-	for_each_node_mask(i, nodes_parsed) {
-		unsigned long s = nodes[i].start >> PAGE_SHIFT;
-		unsigned long e = nodes[i].end >> PAGE_SHIFT;
-		pxmram += e - s;
-		pxmram -= absent_pages_in_range(s, e);
-		if ((long)pxmram < 0)
-			pxmram = 0;
-	}
-
-	e820ram = end_pfn - absent_pages_in_range(0, end_pfn);
-	/* We seem to lose 3 pages somewhere. Allow a bit of slack. */
-	if ((long)(e820ram - pxmram) >= 1*1024*1024) {
-		printk(KERN_ERR
-	"SRAT: PXMs only cover %luMB of your %luMB e820 RAM. Not used.\n",
-			(pxmram << PAGE_SHIFT) >> 20,
-			(e820ram << PAGE_SHIFT) >> 20);
-		return 0;
-	}
-	return 1;
-}
-
-static void unparse_node(int node)
-{
-	int i;
-	node_clear(node, nodes_parsed);
-	for (i = 0; i < MAX_LOCAL_APIC; i++) {
-		if (apicid_to_node[i] == node)
-			apicid_to_node[i] = NUMA_NO_NODE;
-	}
-}
-
-void __init acpi_numa_arch_fixup(void) {}
-
-/* Use the information discovered above to actually set up the nodes. */
-int __init acpi_scan_nodes(unsigned long start, unsigned long end)
-{
-	int i;
-
-	if (acpi_numa <= 0)
-		return -1;
-
-	/* First clean up the node list */
-	for (i = 0; i < MAX_NUMNODES; i++) {
-		cutoff_node(i, start, end);
-		if ((nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
-			unparse_node(i);
-			node_set_offline(i);
-		}
-	}
-
-	if (!nodes_cover_memory(nodes)) {
-		bad_srat();
-		return -1;
-	}
-
-	memnode_shift = compute_hash_shift(nodes, MAX_NUMNODES);
-	if (memnode_shift < 0) {
-		printk(KERN_ERR
-		     "SRAT: No NUMA node hash function found. Contact maintainer\n");
-		bad_srat();
-		return -1;
-	}
-
-	node_possible_map = nodes_parsed;
-
-	/* Finally register nodes */
-	for_each_node_mask(i, node_possible_map)
-		setup_node_bootmem(i, nodes[i].start, nodes[i].end);
-	/* Try again in case setup_node_bootmem missed one due
-	   to missing bootmem */
-	for_each_node_mask(i, node_possible_map)
-		if (!node_online(i))
-			setup_node_bootmem(i, nodes[i].start, nodes[i].end);
-
-	for (i = 0; i < NR_CPUS; i++) {
-		if (cpu_to_node[i] == NUMA_NO_NODE)
-			continue;
-		if (!node_isset(cpu_to_node[i], node_possible_map))
-			numa_set_node(i, NUMA_NO_NODE);
-	}
-	numa_init_array();
-	return 0;
-}
-
-#ifdef CONFIG_NUMA_EMU
-static int __init find_node_by_addr(unsigned long addr)
-{
-	int ret = NUMA_NO_NODE;
-	int i;
-
-	for_each_node_mask(i, nodes_parsed) {
-		/*
-		 * Find the real node that this emulated node appears on.  For
-		 * the sake of simplicity, we only use a real node's starting
-		 * address to determine which emulated node it appears on.
-		 */
-		if (addr >= nodes[i].start && addr < nodes[i].end) {
-			ret = i;
-			break;
-		}
-	}
-	return i;
-}
-
-/*
- * In NUMA emulation, we need to setup proximity domain (_PXM) to node ID
- * mappings that respect the real ACPI topology but reflect our emulated
- * environment.  For each emulated node, we find which real node it appears on
- * and create PXM to NID mappings for those fake nodes which mirror that
- * locality.  SLIT will now represent the correct distances between emulated
- * nodes as a result of the real topology.
- */
-void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
-{
-	int i, j;
-	int fake_node_to_pxm_map[MAX_NUMNODES] = {
-		[0 ... MAX_NUMNODES-1] = PXM_INVAL
-	};
-	unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] = {
-		[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
-	};
-
-	printk(KERN_INFO "Faking PXM affinity for fake nodes on real "
-			 "topology.\n");
-	for (i = 0; i < num_nodes; i++) {
-		int nid, pxm;
-
-		nid = find_node_by_addr(fake_nodes[i].start);
-		if (nid == NUMA_NO_NODE)
-			continue;
-		pxm = node_to_pxm(nid);
-		if (pxm == PXM_INVAL)
-			continue;
-		fake_node_to_pxm_map[i] = pxm;
-		/*
-		 * For each apicid_to_node mapping that exists for this real
-		 * node, it must now point to the fake node ID.
-		 */
-		for (j = 0; j < MAX_LOCAL_APIC; j++)
-			if (apicid_to_node[j] == nid)
-				fake_apicid_to_node[j] = i;
-	}
-	for (i = 0; i < num_nodes; i++)
-		__acpi_map_pxm_to_node(fake_node_to_pxm_map[i], i);
-	memcpy(apicid_to_node, fake_apicid_to_node, sizeof(apicid_to_node));
-
-	nodes_clear(nodes_parsed);
-	for (i = 0; i < num_nodes; i++)
-		if (fake_nodes[i].start != fake_nodes[i].end)
-			node_set(i, nodes_parsed);
-	WARN_ON(!nodes_cover_memory(fake_nodes));
-}
-
-static int null_slit_node_compare(int a, int b)
-{
-	return node_to_pxm(a) == node_to_pxm(b);
-}
-#else
-static int null_slit_node_compare(int a, int b)
-{
-	return a == b;
-}
-#endif /* CONFIG_NUMA_EMU */
-
-void __init srat_reserve_add_area(int nodeid)
-{
-	if (found_add_area && nodes_add[nodeid].end) {
-		u64 total_mb;
-
-		printk(KERN_INFO "SRAT: Reserving hot-add memory space "
-				"for node %d at %Lx-%Lx\n",
-			nodeid, nodes_add[nodeid].start, nodes_add[nodeid].end);
-		total_mb = (nodes_add[nodeid].end - nodes_add[nodeid].start)
-					>> PAGE_SHIFT;
-		total_mb *= sizeof(struct page);
-		total_mb >>= 20;
-		printk(KERN_INFO "SRAT: This will cost you %Lu MB of "
-				"pre-allocated memory.\n", (unsigned long long)total_mb);
-		reserve_bootmem_node(NODE_DATA(nodeid), nodes_add[nodeid].start,
-			       nodes_add[nodeid].end - nodes_add[nodeid].start);
-	}
-}
-
-int __node_distance(int a, int b)
-{
-	int index;
-
-	if (!acpi_slit)
-		return null_slit_node_compare(a, b) ? LOCAL_DISTANCE :
-						      REMOTE_DISTANCE;
-	index = acpi_slit->locality_count * node_to_pxm(a);
-	return acpi_slit->entry[index + node_to_pxm(b)];
-}
-
-EXPORT_SYMBOL(__node_distance);
-
-int memory_add_physaddr_to_nid(u64 start)
-{
-	int i, ret = 0;
-
-	for_each_node(i)
-		if (nodes_add[i].start <= start && nodes_add[i].end > start)
-			ret = i;
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-