diff options
author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-09 13:51:50 +0000 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-14 18:04:09 +1100 |
commit | aa9cd505e39d63034243c9c1ea8b0a984a6b201f (patch) | |
tree | bd2fe98044f909d8325365fa01119f60e81714a0 /arch/powerpc | |
parent | d81e6f8b7c6600c891cd133312061d23d4e6690c (diff) | |
download | linux-aa9cd505e39d63034243c9c1ea8b0a984a6b201f.tar.bz2 |
powerpc/mm: move some nohash pte helpers in nohash/[32:64]/pgtable.h
In order to allow their use in nohash/32/pgtable.h, we have to move the
following helpers in nohash/[32:64]/pgtable.h:
- pte_mkwrite()
- pte_mkdirty()
- pte_mkyoung()
- pte_wrprotect()
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')
-rw-r--r-- | arch/powerpc/include/asm/nohash/32/pgtable.h | 28 | ||||
-rw-r--r-- | arch/powerpc/include/asm/nohash/64/pgtable.h | 20 | ||||
-rw-r--r-- | arch/powerpc/include/asm/nohash/pgtable.h | 28 |
3 files changed, 48 insertions, 28 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h index a7f44498ab6f..4373f8c44b6d 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -136,6 +136,34 @@ extern int icache_44x_need_flush; #define pte_clear(mm, addr, ptep) \ do { pte_update(ptep, ~0, 0); } while (0) +static inline pte_t pte_mkwrite(pte_t pte) +{ + pte_basic_t ptev; + + ptev = pte_val(pte) & ~_PAGE_RO; + ptev |= _PAGE_RW; + return __pte(ptev); +} + +static inline pte_t pte_mkdirty(pte_t pte) +{ + return __pte(pte_val(pte) | _PAGE_DIRTY); +} + +static inline pte_t pte_mkyoung(pte_t pte) +{ + return __pte(pte_val(pte) | _PAGE_ACCESSED); +} + +static inline pte_t pte_wrprotect(pte_t pte) +{ + pte_basic_t ptev; + + ptev = pte_val(pte) & ~(_PAGE_RW | _PAGE_HWWRITE); + ptev |= _PAGE_RO; + return __pte(ptev); +} + #define pmd_none(pmd) (!pmd_val(pmd)) #define pmd_bad(pmd) (pmd_val(pmd) & _PMD_BAD) #define pmd_present(pmd) (pmd_val(pmd) & _PMD_PRESENT_MASK) diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index 513b6e9e62c6..72dac522aa66 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -94,6 +94,26 @@ #ifndef __ASSEMBLY__ /* pte_clear moved to later in this file */ +static inline pte_t pte_mkwrite(pte_t pte) +{ + return __pte(pte_val(pte) | _PAGE_RW); +} + +static inline pte_t pte_mkdirty(pte_t pte) +{ + return __pte(pte_val(pte) | _PAGE_DIRTY); +} + +static inline pte_t pte_mkyoung(pte_t pte) +{ + return __pte(pte_val(pte) | _PAGE_ACCESSED); +} + +static inline pte_t pte_wrprotect(pte_t pte) +{ + return __pte(pte_val(pte) & ~_PAGE_RW); +} + #define PMD_BAD_BITS (PTE_TABLE_SIZE-1) #define PUD_BAD_BITS (PMD_TABLE_SIZE-1) diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index 5b82e44c4231..c746e9e784cd 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -77,15 +77,6 @@ static inline unsigned long pte_pfn(pte_t pte) { return pte_val(pte) >> PTE_RPN_SHIFT; } /* Generic modifiers for PTE bits */ -static inline pte_t pte_wrprotect(pte_t pte) -{ - pte_basic_t ptev; - - ptev = pte_val(pte) & ~(_PAGE_RW | _PAGE_HWWRITE); - ptev |= _PAGE_RO; - return __pte(ptev); -} - static inline pte_t pte_mkclean(pte_t pte) { return __pte(pte_val(pte) & ~(_PAGE_DIRTY | _PAGE_HWWRITE)); @@ -96,25 +87,6 @@ static inline pte_t pte_mkold(pte_t pte) return __pte(pte_val(pte) & ~_PAGE_ACCESSED); } -static inline pte_t pte_mkwrite(pte_t pte) -{ - pte_basic_t ptev; - - ptev = pte_val(pte) & ~_PAGE_RO; - ptev |= _PAGE_RW; - return __pte(ptev); -} - -static inline pte_t pte_mkdirty(pte_t pte) -{ - return __pte(pte_val(pte) | _PAGE_DIRTY); -} - -static inline pte_t pte_mkyoung(pte_t pte) -{ - return __pte(pte_val(pte) | _PAGE_ACCESSED); -} - static inline pte_t pte_mkspecial(pte_t pte) { return __pte(pte_val(pte) | _PAGE_SPECIAL); |