diff options
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 71 |
1 files changed, 32 insertions, 39 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 6fbb45d11bf0..9db2b8eba61d 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -506,12 +506,12 @@ static inline bool pte_soft_dirty(pte_t pte) static inline pte_t pte_mksoft_dirty(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_SOFT_DIRTY); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_SOFT_DIRTY)); } static inline pte_t pte_clear_soft_dirty(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_SOFT_DIRTY); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_SOFT_DIRTY)); } #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */ @@ -532,7 +532,7 @@ static inline pte_t pte_mk_savedwrite(pte_t pte) */ VM_BUG_ON((pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT | _PAGE_RWX | _PAGE_PRIVILEGED)) != cpu_to_be64(_PAGE_PRESENT | _PAGE_PRIVILEGED)); - return __pte(pte_val(pte) & ~_PAGE_PRIVILEGED); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_PRIVILEGED)); } #define pte_clear_savedwrite pte_clear_savedwrite @@ -542,14 +542,14 @@ static inline pte_t pte_clear_savedwrite(pte_t pte) * Used by KSM subsystem to make a protnone pte readonly. */ VM_BUG_ON(!pte_protnone(pte)); - return __pte(pte_val(pte) | _PAGE_PRIVILEGED); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_PRIVILEGED)); } #else #define pte_clear_savedwrite pte_clear_savedwrite static inline pte_t pte_clear_savedwrite(pte_t pte) { VM_WARN_ON(1); - return __pte(pte_val(pte) & ~_PAGE_WRITE); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_WRITE)); } #endif /* CONFIG_NUMA_BALANCING */ @@ -578,25 +578,22 @@ static inline bool arch_pte_access_permitted(u64 pte, bool write, bool execute) } #endif /* CONFIG_PPC_MEM_KEYS */ +static inline bool pte_user(pte_t pte) +{ + return !(pte_raw(pte) & cpu_to_be64(_PAGE_PRIVILEGED)); +} + #define pte_access_permitted pte_access_permitted static inline bool pte_access_permitted(pte_t pte, bool write) { - unsigned long pteval = pte_val(pte); - /* Also check for pte_user */ - unsigned long clear_pte_bits = _PAGE_PRIVILEGED; /* * _PAGE_READ is needed for any access and will be * cleared for PROT_NONE */ - unsigned long need_pte_bits = _PAGE_PRESENT | _PAGE_READ; - - if (write) - need_pte_bits |= _PAGE_WRITE; - - if ((pteval & need_pte_bits) != need_pte_bits) + if (!pte_present(pte) || !pte_user(pte) || !pte_read(pte)) return false; - if ((pteval & clear_pte_bits) == clear_pte_bits) + if (write && !pte_write(pte)) return false; return arch_pte_access_permitted(pte_val(pte), write, 0); @@ -625,32 +622,32 @@ static inline pte_t pte_wrprotect(pte_t pte) { if (unlikely(pte_savedwrite(pte))) return pte_clear_savedwrite(pte); - return __pte(pte_val(pte) & ~_PAGE_WRITE); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_WRITE)); } static inline pte_t pte_exprotect(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_EXEC); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_EXEC)); } static inline pte_t pte_mkclean(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_DIRTY); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_DIRTY)); } static inline pte_t pte_mkold(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_ACCESSED); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_ACCESSED)); } static inline pte_t pte_mkexec(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_EXEC); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_EXEC)); } static inline pte_t pte_mkpte(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_PTE); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_PTE)); } static inline pte_t pte_mkwrite(pte_t pte) @@ -658,22 +655,22 @@ static inline pte_t pte_mkwrite(pte_t pte) /* * write implies read, hence set both */ - return __pte(pte_val(pte) | _PAGE_RW); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_RW)); } static inline pte_t pte_mkdirty(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_DIRTY | _PAGE_SOFT_DIRTY); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_DIRTY | _PAGE_SOFT_DIRTY)); } static inline pte_t pte_mkyoung(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_ACCESSED); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_ACCESSED)); } static inline pte_t pte_mkspecial(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_SPECIAL); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_SPECIAL)); } static inline pte_t pte_mkhuge(pte_t pte) @@ -683,17 +680,17 @@ static inline pte_t pte_mkhuge(pte_t pte) static inline pte_t pte_mkdevmap(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_SPECIAL|_PAGE_DEVMAP); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_SPECIAL | _PAGE_DEVMAP)); } static inline pte_t pte_mkprivileged(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_PRIVILEGED); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_PRIVILEGED)); } static inline pte_t pte_mkuser(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_PRIVILEGED); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_PRIVILEGED)); } /* @@ -712,12 +709,8 @@ static inline int pte_devmap(pte_t pte) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { /* FIXME!! check whether this need to be a conditional */ - return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot)); -} - -static inline bool pte_user(pte_t pte) -{ - return !(pte_raw(pte) & cpu_to_be64(_PAGE_PRIVILEGED)); + return __pte_raw((pte_raw(pte) & cpu_to_be64(_PAGE_CHG_MASK)) | + cpu_to_be64(pgprot_val(newprot))); } /* Encode and de-code a swap entry */ @@ -760,7 +753,7 @@ static inline bool pte_user(pte_t pte) #ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY static inline pte_t pte_swp_mksoft_dirty(pte_t pte) { - return __pte(pte_val(pte) | _PAGE_SWP_SOFT_DIRTY); + return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_SWP_SOFT_DIRTY)); } static inline bool pte_swp_soft_dirty(pte_t pte) @@ -770,7 +763,7 @@ static inline bool pte_swp_soft_dirty(pte_t pte) static inline pte_t pte_swp_clear_soft_dirty(pte_t pte) { - return __pte(pte_val(pte) & ~_PAGE_SWP_SOFT_DIRTY); + return __pte_raw(pte_raw(pte) & cpu_to_be64(~_PAGE_SWP_SOFT_DIRTY)); } #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */ @@ -859,10 +852,10 @@ static inline pgprot_t pgprot_writecombine(pgprot_t prot) */ static inline bool pte_ci(pte_t pte) { - unsigned long pte_v = pte_val(pte); + __be64 pte_v = pte_raw(pte); - if (((pte_v & _PAGE_CACHE_CTL) == _PAGE_TOLERANT) || - ((pte_v & _PAGE_CACHE_CTL) == _PAGE_NON_IDEMPOTENT)) + if (((pte_v & cpu_to_be64(_PAGE_CACHE_CTL)) == cpu_to_be64(_PAGE_TOLERANT)) || + ((pte_v & cpu_to_be64(_PAGE_CACHE_CTL)) == cpu_to_be64(_PAGE_NON_IDEMPOTENT))) return true; return false; } |
