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Commit 227be799 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

s390/mm: uninline pmdp_xxx functions from pgtable.h 



The pmdp_xxx function are smaller than their ptep_xxx counterparts
but to keep things symmetrical unline them as well.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent ebde765c

arch/s390/include/asm/pgtable.h

+53 −83
Original line number Diff line number Diff line
@@ -520,15 +520,6 @@ static inline int pmd_bad(pmd_t pmd) 
	return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS) != 0;

}



#define  __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS

extern int pmdp_set_access_flags(struct vm_area_struct *vma,

				 unsigned long address, pmd_t *pmdp,

				 pmd_t entry, int dirty);



#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH

extern int pmdp_clear_flush_young(struct vm_area_struct *vma,

				  unsigned long address, pmd_t *pmdp);



#define __HAVE_ARCH_PMD_WRITE

static inline int pmd_write(pmd_t pmd)

{
@@ -1203,54 +1194,51 @@ static inline void __pmdp_idte_local(unsigned long address, pmd_t *pmdp) 
		: "cc" );

}



static inline void pmdp_flush_direct(struct mm_struct *mm,

				     unsigned long address, pmd_t *pmdp)

{

	int active, count;

pmd_t pmdp_xchg_direct(struct mm_struct *, unsigned long, pmd_t *, pmd_t);

pmd_t pmdp_xchg_lazy(struct mm_struct *, unsigned long, pmd_t *, pmd_t);



	if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID)

		return;

	if (!MACHINE_HAS_IDTE) {

		__pmdp_csp(pmdp);

		return;

	}

	active = (mm == current->active_mm) ? 1 : 0;

	count = atomic_add_return(0x10000, &mm->context.attach_count);

	if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active &&

	    cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))

		__pmdp_idte_local(address, pmdp);

	else

		__pmdp_idte(address, pmdp);

	atomic_sub(0x10000, &mm->context.attach_count);

}

#ifdef CONFIG_TRANSPARENT_HUGEPAGE



#define __HAVE_ARCH_PGTABLE_DEPOSIT

void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,

				pgtable_t pgtable);



static inline void pmdp_flush_lazy(struct mm_struct *mm,

				   unsigned long address, pmd_t *pmdp)

#define __HAVE_ARCH_PGTABLE_WITHDRAW

pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);



#define  __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS

static inline int pmdp_set_access_flags(struct vm_area_struct *vma,

					unsigned long addr, pmd_t *pmdp,

					pmd_t entry, int dirty)

{

	int active, count;

	VM_BUG_ON(addr & ~HPAGE_MASK);



	if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID)

		return;

	active = (mm == current->active_mm) ? 1 : 0;

	count = atomic_add_return(0x10000, &mm->context.attach_count);

	if ((count & 0xffff) <= active) {

		pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID;

		mm->context.flush_mm = 1;

	} else if (MACHINE_HAS_IDTE)

		__pmdp_idte(address, pmdp);

	else

		__pmdp_csp(pmdp);

	atomic_sub(0x10000, &mm->context.attach_count);

	entry = pmd_mkyoung(entry);

	if (dirty)

		entry = pmd_mkdirty(entry);

	if (pmd_val(*pmdp) == pmd_val(entry))

		return 0;

	pmdp_xchg_direct(vma->vm_mm, addr, pmdp, entry);

	return 1;

}



#ifdef CONFIG_TRANSPARENT_HUGEPAGE

#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG

static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,

					    unsigned long addr, pmd_t *pmdp)

{

	pmd_t pmd = *pmdp;



#define __HAVE_ARCH_PGTABLE_DEPOSIT

extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,

				       pgtable_t pgtable);

	pmd = pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd_mkold(pmd));

	return pmd_young(pmd);

}



#define __HAVE_ARCH_PGTABLE_WITHDRAW

extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);

#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH

static inline int pmdp_clear_flush_young(struct vm_area_struct *vma,

					 unsigned long addr, pmd_t *pmdp)

{

	VM_BUG_ON(addr & ~HPAGE_MASK);

	return pmdp_test_and_clear_young(vma, addr, pmdp);

}



static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,

			      pmd_t *pmdp, pmd_t entry)
@@ -1266,66 +1254,48 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) 
	return pmd;

}



#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG

static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,

					    unsigned long address, pmd_t *pmdp)

{

	pmd_t pmd;



	pmd = *pmdp;

	pmdp_flush_direct(vma->vm_mm, address, pmdp);

	*pmdp = pmd_mkold(pmd);

	return pmd_young(pmd);

}



#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR

static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,

					    unsigned long address, pmd_t *pmdp)

					    unsigned long addr, pmd_t *pmdp)

{

	pmd_t pmd = *pmdp;



	pmdp_flush_direct(mm, address, pmdp);

	pmd_clear(pmdp);

	return pmd;

	return pmdp_xchg_direct(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_INVALID));

}



#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL

static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,

						 unsigned long address,

						 unsigned long addr,

						 pmd_t *pmdp, int full)

{

	if (full) {

		pmd_t pmd = *pmdp;



	if (!full)

		pmdp_flush_lazy(mm, address, pmdp);

	pmd_clear(pmdp);

		*pmdp = __pmd(_SEGMENT_ENTRY_INVALID);

		return pmd;

	}

	return pmdp_xchg_lazy(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_INVALID));

}



#define __HAVE_ARCH_PMDP_HUGE_CLEAR_FLUSH

static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,

					  unsigned long address, pmd_t *pmdp)

					  unsigned long addr, pmd_t *pmdp)

{

	return pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);

	return pmdp_huge_get_and_clear(vma->vm_mm, addr, pmdp);

}



#define __HAVE_ARCH_PMDP_INVALIDATE

static inline void pmdp_invalidate(struct vm_area_struct *vma,

				   unsigned long address, pmd_t *pmdp)

				   unsigned long addr, pmd_t *pmdp)

{

	pmdp_flush_direct(vma->vm_mm, address, pmdp);

	pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_INVALID));

}



#define __HAVE_ARCH_PMDP_SET_WRPROTECT

static inline void pmdp_set_wrprotect(struct mm_struct *mm,

				      unsigned long address, pmd_t *pmdp)

				      unsigned long addr, pmd_t *pmdp)

{

	pmd_t pmd = *pmdp;



	if (pmd_write(pmd)) {

		pmdp_flush_direct(mm, address, pmdp);

		set_pmd_at(mm, address, pmdp, pmd_wrprotect(pmd));

	}

	if (pmd_write(pmd))

		pmd = pmdp_xchg_lazy(mm, addr, pmdp, pmd_wrprotect(pmd));

}



static inline pmd_t pmdp_collapse_flush(struct vm_area_struct *vma,

arch/s390/mm/hugetlbpage.c

+3 −4
Original line number Diff line number Diff line
@@ -105,11 +105,10 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, 
			      unsigned long addr, pte_t *ptep)

{

	pmd_t *pmdp = (pmd_t *) ptep;

	pte_t pte = huge_ptep_get(ptep);

	pmd_t old;



	pmdp_flush_direct(mm, addr, pmdp);

	pmd_val(*pmdp) = _SEGMENT_ENTRY_EMPTY;

	return pte;

	old = pmdp_xchg_direct(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));

	return __pmd_to_pte(old);

}



pte_t *huge_pte_alloc(struct mm_struct *mm,

arch/s390/mm/pgtable.c

+68 −25
Original line number Diff line number Diff line
@@ -1418,6 +1418,74 @@ void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, 
}

EXPORT_SYMBOL(ptep_modify_prot_commit);



static inline pmd_t pmdp_flush_direct(struct mm_struct *mm,

				      unsigned long addr, pmd_t *pmdp)

{

	int active, count;

	pmd_t old;



	old = *pmdp;

	if (pmd_val(old) & _SEGMENT_ENTRY_INVALID)

		return old;

	if (!MACHINE_HAS_IDTE) {

		__pmdp_csp(pmdp);

		return old;

	}

	active = (mm == current->active_mm) ? 1 : 0;

	count = atomic_add_return(0x10000, &mm->context.attach_count);

	if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active &&

	    cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))

		__pmdp_idte_local(addr, pmdp);

	else

		__pmdp_idte(addr, pmdp);

	atomic_sub(0x10000, &mm->context.attach_count);

	return old;

}



static inline pmd_t pmdp_flush_lazy(struct mm_struct *mm,

				    unsigned long addr, pmd_t *pmdp)

{

	int active, count;

	pmd_t old;



	old = *pmdp;

	if (pmd_val(old) & _SEGMENT_ENTRY_INVALID)

		return old;

	active = (mm == current->active_mm) ? 1 : 0;

	count = atomic_add_return(0x10000, &mm->context.attach_count);

	if ((count & 0xffff) <= active) {

		pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID;

		mm->context.flush_mm = 1;

	} else if (MACHINE_HAS_IDTE)

		__pmdp_idte(addr, pmdp);

	else

		__pmdp_csp(pmdp);

	atomic_sub(0x10000, &mm->context.attach_count);

	return old;

}



pmd_t pmdp_xchg_direct(struct mm_struct *mm, unsigned long addr,

		       pmd_t *pmdp, pmd_t new)

{

	pmd_t old;



	old = pmdp_flush_direct(mm, addr, pmdp);

	*pmdp = new;

	return old;

}

EXPORT_SYMBOL(pmdp_xchg_direct);



pmd_t pmdp_xchg_lazy(struct mm_struct *mm, unsigned long addr,

		     pmd_t *pmdp, pmd_t new)

{

	pmd_t old;



	old = pmdp_flush_lazy(mm, addr, pmdp);

	*pmdp = new;

	return old;

}

EXPORT_SYMBOL(pmdp_xchg_lazy);



/*

 * switch on pgstes for its userspace process (for kvm)

 */
@@ -1525,31 +1593,6 @@ void s390_reset_cmma(struct mm_struct *mm) 
EXPORT_SYMBOL_GPL(s390_reset_cmma);



#ifdef CONFIG_TRANSPARENT_HUGEPAGE

int pmdp_clear_flush_young(struct vm_area_struct *vma, unsigned long address,

			   pmd_t *pmdp)

{

	VM_BUG_ON(address & ~HPAGE_PMD_MASK);

	/* No need to flush TLB

	 * On s390 reference bits are in storage key and never in TLB */

	return pmdp_test_and_clear_young(vma, address, pmdp);

}



int pmdp_set_access_flags(struct vm_area_struct *vma,

			  unsigned long address, pmd_t *pmdp,

			  pmd_t entry, int dirty)

{

	VM_BUG_ON(address & ~HPAGE_PMD_MASK);



	entry = pmd_mkyoung(entry);

	if (dirty)

		entry = pmd_mkdirty(entry);

	if (pmd_same(*pmdp, entry))

		return 0;

	pmdp_invalidate(vma, address, pmdp);

	set_pmd_at(vma->vm_mm, address, pmdp, entry);

	return 1;

}



void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,

				pgtable_t pgtable)

{