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powerpc/mm: Move pte_user() into nohash/pgtable.h 

Now the pte-common.h is only for nohash platforms, lets
move pte_user() helper out of pte-common.h to put it
together with other helpers.

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>
hifive-unleashed-5.1
Christophe Leroy 2018-10-09 13:52:06 +00:00 committed by Michael Ellerman
parent b2133bd7a5
commit e0f57031ca
2 changed files with 10 additions and 13 deletions
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10
arch/powerpc/include/asm/nohash/pgtable.h
View File

@ -51,6 +51,16 @@ static inline bool pte_hw_valid(pte_t pte)
return pte_val(pte) & _PAGE_PRESENT;
}
/*
* Don't just check for any non zero bits in __PAGE_USER, since for book3e
* and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
* _PAGE_USER. Need to explicitly match _PAGE_BAP_UR bit in that case too.
*/
static inline bool pte_user(pte_t pte)
{
return (pte_val(pte) & (_PAGE_USER | _PAGE_PRIVILEGED)) == _PAGE_USER;
}
/*
* We only find page table entry in the last level
* Hence no need for other accessors

13
arch/powerpc/include/asm/pte-common.h
View File

@ -66,19 +66,6 @@
#define _PTE_NONE_MASK 0
#endif
#ifndef __ASSEMBLY__
/*
* Don't just check for any non zero bits in __PAGE_USER, since for book3e
* and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
* _PAGE_USER. Need to explicitly match _PAGE_BAP_UR bit in that case too.
*/
static inline bool pte_user(pte_t pte)
{
return (pte_val(pte) & (_PAGE_USER | _PAGE_PRIVILEGED)) == _PAGE_USER;
}
#endif /* __ASSEMBLY__ */
/* Location of the PFN in the PTE. Most 32-bit platforms use the same
* as _PAGE_SHIFT here (ie, naturally aligned).
* Platform who don't just pre-define the value so we don't override it here