powerpc: Merge arch/ppc64/mm to arch/powerpc/mm

This moves the remaining files in arch/ppc64/mm to arch/powerpc/mm,
and arranges that we use them when compiling with ARCH=ppc64.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 745 deletions

diff --git a/arch/ppc64/mm/hugetlbpage.c b/arch/ppc64/mm/hugetlbpage.c
deleted file mode 100644
index 0ea0994ed97..00000000000
--- a/arch/ppc64/mm/hugetlbpage.c
+++ /dev/null
@@ -1,745 +0,0 @@
-/*
- * PPC64 (POWER4) Huge TLB Page Support for Kernel.
- *
- * Copyright (C) 2003 David Gibson, IBM Corporation.
- *
- * Based on the IA-32 version:
- * Copyright (C) 2002, Rohit Seth <rohit.seth@intel.com>
- */
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/sysctl.h>
-#include <asm/mman.h>
-#include <asm/pgalloc.h>
-#include <asm/tlb.h>
-#include <asm/tlbflush.h>
-#include <asm/mmu_context.h>
-#include <asm/machdep.h>
-#include <asm/cputable.h>
-#include <asm/tlb.h>
-
-#include <linux/sysctl.h>
-
-#define NUM_LOW_AREAS	(0x100000000UL >> SID_SHIFT)
-#define NUM_HIGH_AREAS	(PGTABLE_RANGE >> HTLB_AREA_SHIFT)
-
-/* Modelled after find_linux_pte() */
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
-{
-	pgd_t *pg;
-	pud_t *pu;
-	pmd_t *pm;
-	pte_t *pt;
-
-	BUG_ON(! in_hugepage_area(mm->context, addr));
-
-	addr &= HPAGE_MASK;
-
-	pg = pgd_offset(mm, addr);
-	if (!pgd_none(*pg)) {
-		pu = pud_offset(pg, addr);
-		if (!pud_none(*pu)) {
-			pm = pmd_offset(pu, addr);
-			pt = (pte_t *)pm;
-			BUG_ON(!pmd_none(*pm)
-			       && !(pte_present(*pt) && pte_huge(*pt)));
-			return pt;
-		}
-	}
-
-	return NULL;
-}
-
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
-{
-	pgd_t *pg;
-	pud_t *pu;
-	pmd_t *pm;
-	pte_t *pt;
-
-	BUG_ON(! in_hugepage_area(mm->context, addr));
-
-	addr &= HPAGE_MASK;
-
-	pg = pgd_offset(mm, addr);
-	pu = pud_alloc(mm, pg, addr);
-
-	if (pu) {
-		pm = pmd_alloc(mm, pu, addr);
-		if (pm) {
-			pt = (pte_t *)pm;
-			BUG_ON(!pmd_none(*pm)
-			       && !(pte_present(*pt) && pte_huge(*pt)));
-			return pt;
-		}
-	}
-
-	return NULL;
-}
-
-#define HUGEPTE_BATCH_SIZE	(HPAGE_SIZE / PMD_SIZE)
-
-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-		     pte_t *ptep, pte_t pte)
-{
-	int i;
-
-	if (pte_present(*ptep)) {
-		pte_clear(mm, addr, ptep);
-		flush_tlb_pending();
-	}
-
-	for (i = 0; i < HUGEPTE_BATCH_SIZE; i++) {
-		*ptep = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);
-		ptep++;
-	}
-}
-
-pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
-			      pte_t *ptep)
-{
-	unsigned long old = pte_update(ptep, ~0UL);
-	int i;
-
-	if (old & _PAGE_HASHPTE)
-		hpte_update(mm, addr, old, 0);
-
-	for (i = 1; i < HUGEPTE_BATCH_SIZE; i++)
-		ptep[i] = __pte(0);
-
-	return __pte(old);
-}
-
-/*
- * This function checks for proper alignment of input addr and len parameters.
- */
-int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
-{
-	if (len & ~HPAGE_MASK)
-		return -EINVAL;
-	if (addr & ~HPAGE_MASK)
-		return -EINVAL;
-	if (! (within_hugepage_low_range(addr, len)
-	       || within_hugepage_high_range(addr, len)) )
-		return -EINVAL;
-	return 0;
-}
-
-static void flush_low_segments(void *parm)
-{
-	u16 areas = (unsigned long) parm;
-	unsigned long i;
-
-	asm volatile("isync" : : : "memory");
-
-	BUILD_BUG_ON((sizeof(areas)*8) != NUM_LOW_AREAS);
-
-	for (i = 0; i < NUM_LOW_AREAS; i++) {
-		if (! (areas & (1U << i)))
-			continue;
-		asm volatile("slbie %0"
-			     : : "r" ((i << SID_SHIFT) | SLBIE_C));
-	}
-
-	asm volatile("isync" : : : "memory");
-}
-
-static void flush_high_segments(void *parm)
-{
-	u16 areas = (unsigned long) parm;
-	unsigned long i, j;
-
-	asm volatile("isync" : : : "memory");
-
-	BUILD_BUG_ON((sizeof(areas)*8) != NUM_HIGH_AREAS);
-
-	for (i = 0; i < NUM_HIGH_AREAS; i++) {
-		if (! (areas & (1U << i)))
-			continue;
-		for (j = 0; j < (1UL << (HTLB_AREA_SHIFT-SID_SHIFT)); j++)
-			asm volatile("slbie %0"
-				     :: "r" (((i << HTLB_AREA_SHIFT)
-					     + (j << SID_SHIFT)) | SLBIE_C));
-	}
-
-	asm volatile("isync" : : : "memory");
-}
-
-static int prepare_low_area_for_htlb(struct mm_struct *mm, unsigned long area)
-{
-	unsigned long start = area << SID_SHIFT;
-	unsigned long end = (area+1) << SID_SHIFT;
-	struct vm_area_struct *vma;
-
-	BUG_ON(area >= NUM_LOW_AREAS);
-
-	/* Check no VMAs are in the region */
-	vma = find_vma(mm, start);
-	if (vma && (vma->vm_start < end))
-		return -EBUSY;
-
-	return 0;
-}
-
-static int prepare_high_area_for_htlb(struct mm_struct *mm, unsigned long area)
-{
-	unsigned long start = area << HTLB_AREA_SHIFT;
-	unsigned long end = (area+1) << HTLB_AREA_SHIFT;
-	struct vm_area_struct *vma;
-
-	BUG_ON(area >= NUM_HIGH_AREAS);
-
-	/* Check no VMAs are in the region */
-	vma = find_vma(mm, start);
-	if (vma && (vma->vm_start < end))
-		return -EBUSY;
-
-	return 0;
-}
-
-static int open_low_hpage_areas(struct mm_struct *mm, u16 newareas)
-{
-	unsigned long i;
-
-	BUILD_BUG_ON((sizeof(newareas)*8) != NUM_LOW_AREAS);
-	BUILD_BUG_ON((sizeof(mm->context.low_htlb_areas)*8) != NUM_LOW_AREAS);
-
-	newareas &= ~(mm->context.low_htlb_areas);
-	if (! newareas)
-		return 0; /* The segments we want are already open */
-
-	for (i = 0; i < NUM_LOW_AREAS; i++)
-		if ((1 << i) & newareas)
-			if (prepare_low_area_for_htlb(mm, i) != 0)
-				return -EBUSY;
-
-	mm->context.low_htlb_areas |= newareas;
-
-	/* update the paca copy of the context struct */
-	get_paca()->context = mm->context;
-
-	/* the context change must make it to memory before the flush,
-	 * so that further SLB misses do the right thing. */
-	mb();
-	on_each_cpu(flush_low_segments, (void *)(unsigned long)newareas, 0, 1);
-
-	return 0;
-}
-
-static int open_high_hpage_areas(struct mm_struct *mm, u16 newareas)
-{
-	unsigned long i;
-
-	BUILD_BUG_ON((sizeof(newareas)*8) != NUM_HIGH_AREAS);
-	BUILD_BUG_ON((sizeof(mm->context.high_htlb_areas)*8)
-		     != NUM_HIGH_AREAS);
-
-	newareas &= ~(mm->context.high_htlb_areas);
-	if (! newareas)
-		return 0; /* The areas we want are already open */
-
-	for (i = 0; i < NUM_HIGH_AREAS; i++)
-		if ((1 << i) & newareas)
-			if (prepare_high_area_for_htlb(mm, i) != 0)
-				return -EBUSY;
-
-	mm->context.high_htlb_areas |= newareas;
-
-	/* update the paca copy of the context struct */
-	get_paca()->context = mm->context;
-
-	/* the context change must make it to memory before the flush,
-	 * so that further SLB misses do the right thing. */
-	mb();
-	on_each_cpu(flush_high_segments, (void *)(unsigned long)newareas, 0, 1);
-
-	return 0;
-}
-
-int prepare_hugepage_range(unsigned long addr, unsigned long len)
-{
-	int err;
-
-	if ( (addr+len) < addr )
-		return -EINVAL;
-
-	if ((addr + len) < 0x100000000UL)
-		err = open_low_hpage_areas(current->mm,
-					  LOW_ESID_MASK(addr, len));
-	else
-		err = open_high_hpage_areas(current->mm,
-					    HTLB_AREA_MASK(addr, len));
-	if (err) {
-		printk(KERN_DEBUG "prepare_hugepage_range(%lx, %lx)"
-		       " failed (lowmask: 0x%04hx, highmask: 0x%04hx)\n",
-		       addr, len,
-		       LOW_ESID_MASK(addr, len), HTLB_AREA_MASK(addr, len));
-		return err;
-	}
-
-	return 0;
-}
-
-struct page *
-follow_huge_addr(struct mm_struct *mm, unsigned long address, int write)
-{
-	pte_t *ptep;
-	struct page *page;
-
-	if (! in_hugepage_area(mm->context, address))
-		return ERR_PTR(-EINVAL);
-
-	ptep = huge_pte_offset(mm, address);
-	page = pte_page(*ptep);
-	if (page)
-		page += (address % HPAGE_SIZE) / PAGE_SIZE;
-
-	return page;
-}
-
-int pmd_huge(pmd_t pmd)
-{
-	return 0;
-}
-
-struct page *
-follow_huge_pmd(struct mm_struct *mm, unsigned long address,
-		pmd_t *pmd, int write)
-{
-	BUG();
-	return NULL;
-}
-
-/* Because we have an exclusive hugepage region which lies within the
- * normal user address space, we have to take special measures to make
- * non-huge mmap()s evade the hugepage reserved regions. */
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-				     unsigned long len, unsigned long pgoff,
-				     unsigned long flags)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
-	unsigned long start_addr;
-
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-
-	if (addr) {
-		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
-		if (((TASK_SIZE - len) >= addr)
-		    && (!vma || (addr+len) <= vma->vm_start)
-		    && !is_hugepage_only_range(mm, addr,len))
-			return addr;
-	}
-	if (len > mm->cached_hole_size) {
-	        start_addr = addr = mm->free_area_cache;
-	} else {
-	        start_addr = addr = TASK_UNMAPPED_BASE;
-	        mm->cached_hole_size = 0;
-	}
-
-full_search:
-	vma = find_vma(mm, addr);
-	while (TASK_SIZE - len >= addr) {
-		BUG_ON(vma && (addr >= vma->vm_end));
-
-		if (touches_hugepage_low_range(mm, addr, len)) {
-			addr = ALIGN(addr+1, 1<<SID_SHIFT);
-			vma = find_vma(mm, addr);
-			continue;
-		}
-		if (touches_hugepage_high_range(mm, addr, len)) {
-			addr = ALIGN(addr+1, 1UL<<HTLB_AREA_SHIFT);
-			vma = find_vma(mm, addr);
-			continue;
-		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/*
-			 * Remember the place where we stopped the search:
-			 */
-			mm->free_area_cache = addr + len;
-			return addr;
-		}
-		if (addr + mm->cached_hole_size < vma->vm_start)
-		        mm->cached_hole_size = vma->vm_start - addr;
-		addr = vma->vm_end;
-		vma = vma->vm_next;
-	}
-
-	/* Make sure we didn't miss any holes */
-	if (start_addr != TASK_UNMAPPED_BASE) {
-		start_addr = addr = TASK_UNMAPPED_BASE;
-		mm->cached_hole_size = 0;
-		goto full_search;
-	}
-	return -ENOMEM;
-}
-
-/*
- * This mmap-allocator allocates new areas top-down from below the
- * stack's low limit (the base):
- *
- * Because we have an exclusive hugepage region which lies within the
- * normal user address space, we have to take special measures to make
- * non-huge mmap()s evade the hugepage reserved regions.
- */
-unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
-{
-	struct vm_area_struct *vma, *prev_vma;
-	struct mm_struct *mm = current->mm;
-	unsigned long base = mm->mmap_base, addr = addr0;
-	unsigned long largest_hole = mm->cached_hole_size;
-	int first_time = 1;
-
-	/* requested length too big for entire address space */
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-
-	/* dont allow allocations above current base */
-	if (mm->free_area_cache > base)
-		mm->free_area_cache = base;
-
-	/* requesting a specific address */
-	if (addr) {
-		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start)
-				&& !is_hugepage_only_range(mm, addr,len))
-			return addr;
-	}
-
-	if (len <= largest_hole) {
-	        largest_hole = 0;
-		mm->free_area_cache = base;
-	}
-try_again:
-	/* make sure it can fit in the remaining address space */
-	if (mm->free_area_cache < len)
-		goto fail;
-
-	/* either no address requested or cant fit in requested address hole */
-	addr = (mm->free_area_cache - len) & PAGE_MASK;
-	do {
-hugepage_recheck:
-		if (touches_hugepage_low_range(mm, addr, len)) {
-			addr = (addr & ((~0) << SID_SHIFT)) - len;
-			goto hugepage_recheck;
-		} else if (touches_hugepage_high_range(mm, addr, len)) {
-			addr = (addr & ((~0UL) << HTLB_AREA_SHIFT)) - len;
-			goto hugepage_recheck;
-		}
-
-		/*
-		 * Lookup failure means no vma is above this address,
-		 * i.e. return with success:
-		 */
- 	 	if (!(vma = find_vma_prev(mm, addr, &prev_vma)))
-			return addr;
-
-		/*
-		 * new region fits between prev_vma->vm_end and
-		 * vma->vm_start, use it:
-		 */
-		if (addr+len <= vma->vm_start &&
-		          (!prev_vma || (addr >= prev_vma->vm_end))) {
-			/* remember the address as a hint for next time */
-		        mm->cached_hole_size = largest_hole;
-		        return (mm->free_area_cache = addr);
-		} else {
-			/* pull free_area_cache down to the first hole */
-		        if (mm->free_area_cache == vma->vm_end) {
-				mm->free_area_cache = vma->vm_start;
-				mm->cached_hole_size = largest_hole;
-			}
-		}
-
-		/* remember the largest hole we saw so far */
-		if (addr + largest_hole < vma->vm_start)
-		        largest_hole = vma->vm_start - addr;
-
-		/* try just below the current vma->vm_start */
-		addr = vma->vm_start-len;
-	} while (len <= vma->vm_start);
-
-fail:
-	/*
-	 * if hint left us with no space for the requested
-	 * mapping then try again:
-	 */
-	if (first_time) {
-		mm->free_area_cache = base;
-		largest_hole = 0;
-		first_time = 0;
-		goto try_again;
-	}
-	/*
-	 * A failed mmap() very likely causes application failure,
-	 * so fall back to the bottom-up function here. This scenario
-	 * can happen with large stack limits and large mmap()
-	 * allocations.
-	 */
-	mm->free_area_cache = TASK_UNMAPPED_BASE;
-	mm->cached_hole_size = ~0UL;
-	addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
-	/*
-	 * Restore the topdown base:
-	 */
-	mm->free_area_cache = base;
-	mm->cached_hole_size = ~0UL;
-
-	return addr;
-}
-
-static unsigned long htlb_get_low_area(unsigned long len, u16 segmask)
-{
-	unsigned long addr = 0;
-	struct vm_area_struct *vma;
-
-	vma = find_vma(current->mm, addr);
-	while (addr + len <= 0x100000000UL) {
-		BUG_ON(vma && (addr >= vma->vm_end)); /* invariant */
-
-		if (! __within_hugepage_low_range(addr, len, segmask)) {
-			addr = ALIGN(addr+1, 1<<SID_SHIFT);
-			vma = find_vma(current->mm, addr);
-			continue;
-		}
-
-		if (!vma || (addr + len) <= vma->vm_start)
-			return addr;
-		addr = ALIGN(vma->vm_end, HPAGE_SIZE);
-		/* Depending on segmask this might not be a confirmed
-		 * hugepage region, so the ALIGN could have skipped
-		 * some VMAs */
-		vma = find_vma(current->mm, addr);
-	}
-
-	return -ENOMEM;
-}
-
-static unsigned long htlb_get_high_area(unsigned long len, u16 areamask)
-{
-	unsigned long addr = 0x100000000UL;
-	struct vm_area_struct *vma;
-
-	vma = find_vma(current->mm, addr);
-	while (addr + len <= TASK_SIZE_USER64) {
-		BUG_ON(vma && (addr >= vma->vm_end)); /* invariant */
-
-		if (! __within_hugepage_high_range(addr, len, areamask)) {
-			addr = ALIGN(addr+1, 1UL<<HTLB_AREA_SHIFT);
-			vma = find_vma(current->mm, addr);
-			continue;
-		}
-
-		if (!vma || (addr + len) <= vma->vm_start)
-			return addr;
-		addr = ALIGN(vma->vm_end, HPAGE_SIZE);
-		/* Depending on segmask this might not be a confirmed
-		 * hugepage region, so the ALIGN could have skipped
-		 * some VMAs */
-		vma = find_vma(current->mm, addr);
-	}
-
-	return -ENOMEM;
-}
-
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-					unsigned long len, unsigned long pgoff,
-					unsigned long flags)
-{
-	int lastshift;
-	u16 areamask, curareas;
-
-	if (len & ~HPAGE_MASK)
-		return -EINVAL;
-
-	if (!cpu_has_feature(CPU_FTR_16M_PAGE))
-		return -EINVAL;
-
-	if (test_thread_flag(TIF_32BIT)) {
-		curareas = current->mm->context.low_htlb_areas;
-
-		/* First see if we can do the mapping in the existing
-		 * low areas */
-		addr = htlb_get_low_area(len, curareas);
-		if (addr != -ENOMEM)
-			return addr;
-
-		lastshift = 0;
-		for (areamask = LOW_ESID_MASK(0x100000000UL-len, len);
-		     ! lastshift; areamask >>=1) {
-			if (areamask & 1)
-				lastshift = 1;
-
-			addr = htlb_get_low_area(len, curareas | areamask);
-			if ((addr != -ENOMEM)
-			    && open_low_hpage_areas(current->mm, areamask) == 0)
-				return addr;
-		}
-	} else {
-		curareas = current->mm->context.high_htlb_areas;
-
-		/* First see if we can do the mapping in the existing
-		 * high areas */
-		addr = htlb_get_high_area(len, curareas);
-		if (addr != -ENOMEM)
-			return addr;
-
-		lastshift = 0;
-		for (areamask = HTLB_AREA_MASK(TASK_SIZE_USER64-len, len);
-		     ! lastshift; areamask >>=1) {
-			if (areamask & 1)
-				lastshift = 1;
-
-			addr = htlb_get_high_area(len, curareas | areamask);
-			if ((addr != -ENOMEM)
-			    && open_high_hpage_areas(current->mm, areamask) == 0)
-				return addr;
-		}
-	}
-	printk(KERN_DEBUG "hugetlb_get_unmapped_area() unable to open"
-	       " enough areas\n");
-	return -ENOMEM;
-}
-
-int hash_huge_page(struct mm_struct *mm, unsigned long access,
-		   unsigned long ea, unsigned long vsid, int local)
-{
-	pte_t *ptep;
-	unsigned long va, vpn;
-	pte_t old_pte, new_pte;
-	unsigned long rflags, prpn;
-	long slot;
-	int err = 1;
-
-	spin_lock(&mm->page_table_lock);
-
-	ptep = huge_pte_offset(mm, ea);
-
-	/* Search the Linux page table for a match with va */
-	va = (vsid << 28) | (ea & 0x0fffffff);
-	vpn = va >> HPAGE_SHIFT;
-
-	/*
-	 * If no pte found or not present, send the problem up to
-	 * do_page_fault
-	 */
-	if (unlikely(!ptep || pte_none(*ptep)))
-		goto out;
-
-/* 	BUG_ON(pte_bad(*ptep)); */
-
-	/* 
-	 * Check the user's access rights to the page.  If access should be
-	 * prevented then send the problem up to do_page_fault.
-	 */
-	if (unlikely(access & ~pte_val(*ptep)))
-		goto out;
-	/*
-	 * At this point, we have a pte (old_pte) which can be used to build
-	 * or update an HPTE. There are 2 cases:
-	 *
-	 * 1. There is a valid (present) pte with no associated HPTE (this is 
-	 *	the most common case)
-	 * 2. There is a valid (present) pte with an associated HPTE. The
-	 *	current values of the pp bits in the HPTE prevent access
-	 *	because we are doing software DIRTY bit management and the
-	 *	page is currently not DIRTY. 
-	 */
-
-
-	old_pte = *ptep;
-	new_pte = old_pte;
-
-	rflags = 0x2 | (! (pte_val(new_pte) & _PAGE_RW));
- 	/* _PAGE_EXEC -> HW_NO_EXEC since it's inverted */
-	rflags |= ((pte_val(new_pte) & _PAGE_EXEC) ? 0 : HW_NO_EXEC);
-
-	/* Check if pte already has an hpte (case 2) */
-	if (unlikely(pte_val(old_pte) & _PAGE_HASHPTE)) {
-		/* There MIGHT be an HPTE for this pte */
-		unsigned long hash, slot;
-
-		hash = hpt_hash(vpn, 1);
-		if (pte_val(old_pte) & _PAGE_SECONDARY)
-			hash = ~hash;
-		slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
-		slot += (pte_val(old_pte) & _PAGE_GROUP_IX) >> 12;
-
-		if (ppc_md.hpte_updatepp(slot, rflags, va, 1, local) == -1)
-			pte_val(old_pte) &= ~_PAGE_HPTEFLAGS;
-	}
-
-	if (likely(!(pte_val(old_pte) & _PAGE_HASHPTE))) {
-		unsigned long hash = hpt_hash(vpn, 1);
-		unsigned long hpte_group;
-
-		prpn = pte_pfn(old_pte);
-
-repeat:
-		hpte_group = ((hash & htab_hash_mask) *
-			      HPTES_PER_GROUP) & ~0x7UL;
-
-		/* Update the linux pte with the HPTE slot */
-		pte_val(new_pte) &= ~_PAGE_HPTEFLAGS;
-		pte_val(new_pte) |= _PAGE_HASHPTE;
-
-		/* Add in WIMG bits */
-		/* XXX We should store these in the pte */
-		rflags |= _PAGE_COHERENT;
-
-		slot = ppc_md.hpte_insert(hpte_group, va, prpn,
-					  HPTE_V_LARGE, rflags);
-
-		/* Primary is full, try the secondary */
-		if (unlikely(slot == -1)) {
-			pte_val(new_pte) |= _PAGE_SECONDARY;
-			hpte_group = ((~hash & htab_hash_mask) *
-				      HPTES_PER_GROUP) & ~0x7UL; 
-			slot = ppc_md.hpte_insert(hpte_group, va, prpn,
-						  HPTE_V_LARGE |
-						  HPTE_V_SECONDARY,
-						  rflags);
-			if (slot == -1) {
-				if (mftb() & 0x1)
-					hpte_group = ((hash & htab_hash_mask) *
-						      HPTES_PER_GROUP)&~0x7UL;
-
-				ppc_md.hpte_remove(hpte_group);
-				goto repeat;
-                        }
-		}
-
-		if (unlikely(slot == -2))
-			panic("hash_huge_page: pte_insert failed\n");
-
-		pte_val(new_pte) |= (slot<<12) & _PAGE_GROUP_IX;
-
-		/* 
-		 * No need to use ldarx/stdcx here because all who
-		 * might be updating the pte will hold the
-		 * page_table_lock
-		 */
-		*ptep = new_pte;
-	}
-
-	err = 0;
-
- out:
-	spin_unlock(&mm->page_table_lock);
-
-	return err;
-}