powerpc/mm: Standardise pte_update() prototype between PPC32 and PPC64

PPC64 takes 3 additional parameters compared to PPC32:
- mm
- address
- huge

These 3 parameters will be needed in order to perform different
action depending on the page size on the 8xx.

Make pte_update() prototype identical for PPC32 and PPC64.

This allows dropping an #ifdef in huge_ptep_get_and_clear().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/38111acf6841047a8addde37c63e92d611ee38c2.1589866984.git.christophe.leroy@csgroup.eu

diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 25c5951..8a091d1 100644 (file)
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -218,7 +218,7 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
  */
 
 #define pte_clear(mm, addr, ptep) \
-       do { pte_update(ptep, ~_PAGE_HASHPTE, 0); } while (0)
+       do { pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, 0, 0); } while (0)
 
 #define pmd_none(pmd)          (!pmd_val(pmd))
 #define        pmd_bad(pmd)            (pmd_val(pmd) & _PMD_BAD)
@@ -254,7 +254,8 @@ extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
  * when using atomic updates, only the low part of the PTE is
  * accessed atomically.
  */
-static inline pte_basic_t pte_update(pte_t *p, unsigned long clr, unsigned long set)
+static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, pte_t *p,
+                                    unsigned long clr, unsigned long set, int huge)
 {
        pte_basic_t old;
        unsigned long tmp;
@@ -292,7 +293,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
                                              unsigned long addr, pte_t *ptep)
 {
        unsigned long old;
-       old = pte_update(ptep, _PAGE_ACCESSED, 0);
+       old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
        if (old & _PAGE_HASHPTE) {
                unsigned long ptephys = __pa(ptep) & PAGE_MASK;
                flush_hash_pages(mm->context.id, addr, ptephys, 1);
@@ -306,14 +307,14 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
                                       pte_t *ptep)
 {
-       return __pte(pte_update(ptep, ~_PAGE_HASHPTE, 0));
+       return __pte(pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, 0, 0));
 }
 
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
                                      pte_t *ptep)
 {
-       pte_update(ptep, _PAGE_RW, 0);
+       pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
@@ -324,7 +325,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
        unsigned long set = pte_val(entry) &
                (_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);
 
-       pte_update(ptep, 0, set);
+       pte_update(vma->vm_mm, address, ptep, 0, set, 0);
 
        flush_tlb_page(vma, address);
 }
@@ -522,7 +523,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
                *ptep = __pte((pte_val(*ptep) & _PAGE_HASHPTE)
                              | (pte_val(pte) & ~_PAGE_HASHPTE));
        else
-               pte_update(ptep, ~_PAGE_HASHPTE, pte_val(pte));
+               pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, pte_val(pte), 0);
 
 #elif defined(CONFIG_PTE_64BIT)
        /* Second case is 32-bit with 64-bit PTE.  In this case, we

diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index bd6504c..e4276af 100644 (file)
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -40,11 +40,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
                                            unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_PPC64
        return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1));
-#else
-       return __pte(pte_update(ptep, ~0UL, 0));
-#endif
 }
 
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH

diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index e963e68..474dd1d 100644 (file)
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -166,7 +166,7 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
 #ifndef __ASSEMBLY__
 
 #define pte_clear(mm, addr, ptep) \
-       do { pte_update(ptep, ~0, 0); } while (0)
+       do { pte_update(mm, addr, ptep, ~0, 0, 0); } while (0)
 
 #ifndef pte_mkwrite
 static inline pte_t pte_mkwrite(pte_t pte)
@@ -222,7 +222,8 @@ static inline void pmd_clear(pmd_t *pmdp)
  * to properly flush the virtually tagged instruction cache of
  * those implementations.
  */
-static inline pte_basic_t pte_update(pte_t *p, unsigned long clr, unsigned long set)
+static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, pte_t *p,
+                                    unsigned long clr, unsigned long set, int huge)
 {
 #if defined(PTE_ATOMIC_UPDATES) && !defined(CONFIG_PTE_64BIT)
        unsigned long old, tmp;
@@ -260,7 +261,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
                                              unsigned long addr, pte_t *ptep)
 {
        unsigned long old;
-       old = pte_update(ptep, _PAGE_ACCESSED, 0);
+       old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
        return (old & _PAGE_ACCESSED) != 0;
 }
 #define ptep_test_and_clear_young(__vma, __addr, __ptep) \
@@ -270,7 +271,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
                                       pte_t *ptep)
 {
-       return __pte(pte_update(ptep, ~0, 0));
+       return __pte(pte_update(mm, addr, ptep, ~0, 0, 0));
 }
 
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
@@ -280,7 +281,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
        unsigned long clr = ~pte_val(pte_wrprotect(__pte(~0)));
        unsigned long set = pte_val(pte_wrprotect(__pte(0)));
 
-       pte_update(ptep, clr, set);
+       pte_update(mm, addr, ptep, clr, set, 0);
 }
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
@@ -293,7 +294,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
        unsigned long set = pte_val(entry) & pte_val(pte_set);
        unsigned long clr = ~pte_val(entry) & ~pte_val(pte_clr);
 
-       pte_update(ptep, clr, set);
+       pte_update(vma->vm_mm, address, ptep, clr, set, 0);
 
        flush_tlb_page(vma, address);
 }