diff options
author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-09 13:51:56 +0000 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-14 18:04:09 +1100 |
commit | 26973fa5ac0e3b88d0d476caccfc10839b26098b (patch) | |
tree | 13ef3468b67d2d965aa7787670f9f62c2e31de72 /arch/powerpc/include/asm/nohash | |
parent | 34eb138ed74dc95285478903148a53bd034829be (diff) | |
download | linux-26973fa5ac0e3b88d0d476caccfc10839b26098b.tar.bz2 |
powerpc/mm: use pte helpers in generic code
Get rid of platform specific _PAGE_XXXX in powerpc common code and
use helpers instead.
mm/dump_linuxpagetables.c will be handled separately
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/nohash')
-rw-r--r-- | arch/powerpc/include/asm/nohash/32/pgtable.h | 12 | ||||
-rw-r--r-- | arch/powerpc/include/asm/nohash/pgtable.h | 3 |
2 files changed, 9 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h index 6fecfd7854f5..a4156da4a7a4 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -277,7 +277,10 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO); + unsigned long clr = ~pte_val(pte_wrprotect(__pte(~0))); + unsigned long set = pte_val(pte_wrprotect(__pte(0))); + + pte_update(ptep, clr, set); } static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -291,9 +294,10 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, int psize) { - unsigned long set = pte_val(entry) & - (_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC); - unsigned long clr = ~pte_val(entry) & (_PAGE_RO | _PAGE_NA); + pte_t pte_set = pte_mkyoung(pte_mkdirty(pte_mkwrite(pte_mkexec(__pte(0))))); + pte_t pte_clr = pte_mkyoung(pte_mkdirty(pte_mkwrite(pte_mkexec(__pte(~0))))); + 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); diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index b256e38a047c..062d96233673 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -32,8 +32,7 @@ static inline pgprot_t pte_pgprot(pte_t pte) { return __pgprot(pte_val(pte) & PA */ static inline int pte_protnone(pte_t pte) { - return (pte_val(pte) & - (_PAGE_PRESENT | _PAGE_USER)) == _PAGE_PRESENT; + return pte_present(pte) && !pte_user(pte); } static inline int pmd_protnone(pmd_t pmd) |