diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2008-10-12 17:54:24 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-14 10:35:27 +1100 |
| commit | f5ea64dcbad89875d130596df14c9b25d994a737 (patch) | |
| tree | 03bde08104ea5c29edcaafc11576eb5594a7426c /arch/powerpc/include/asm | |
| parent | cd301c7ba4bbb5a0ee6ebf13eb4a304f29b13847 (diff) | |
powerpc: Get USE_STRICT_MM_TYPECHECKS working again
The typesafe version of the powerpc pagetable handling (with
USE_STRICT_MM_TYPECHECKS defined) has bitrotted again. This patch
makes a bunch of small fixes to get it back to building status.
It's still not enabled by default as gcc still generates worse
code with it for some reason.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/mman.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pgtable-ppc32.h | 17 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pgtable-ppc64.h | 12 |
3 files changed, 16 insertions, 15 deletions
diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h index 9209f755763..e7b99bac9f4 100644 --- a/arch/powerpc/include/asm/mman.h +++ b/arch/powerpc/include/asm/mman.h @@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot) static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) { - return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : 0; + return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); } #define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags) diff --git a/arch/powerpc/include/asm/pgtable-ppc32.h b/arch/powerpc/include/asm/pgtable-ppc32.h index 29c83d85b04..6ab7c67cb5a 100644 --- a/arch/powerpc/include/asm/pgtable-ppc32.h +++ b/arch/powerpc/include/asm/pgtable-ppc32.h @@ -431,11 +431,11 @@ extern int icache_44x_need_flush; #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) -#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ - _PAGE_WRITETHRU | _PAGE_ENDIAN | \ - _PAGE_USER | _PAGE_ACCESSED | \ - _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | \ - _PAGE_EXEC | _PAGE_HWEXEC) +#define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ + _PAGE_WRITETHRU | _PAGE_ENDIAN | \ + _PAGE_USER | _PAGE_ACCESSED | \ + _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | \ + _PAGE_EXEC | _PAGE_HWEXEC) /* * Note: the _PAGE_COHERENT bit automatically gets set in the hardware * PTE if CONFIG_SMP is defined (hash_page does this); there is no need @@ -570,9 +570,9 @@ static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } static inline pte_t pte_mkspecial(pte_t pte) { pte_val(pte) |= _PAGE_SPECIAL; return pte; } -static inline unsigned long pte_pgprot(pte_t pte) +static inline pgprot_t pte_pgprot(pte_t pte) { - return __pgprot(pte_val(pte)) & PAGE_PROT_BITS; + return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) @@ -688,7 +688,8 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, : "=m" (*ptep), "=m" (*((unsigned char *)ptep+4)) : "r" (pte) : "memory"); #else - *ptep = (*ptep & _PAGE_HASHPTE) | (pte & ~_PAGE_HASHPTE); + *ptep = __pte((pte_val(*ptep) & _PAGE_HASHPTE) + | (pte_val(pte) & ~_PAGE_HASHPTE)); #endif } diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index 4597c491e9b..4c0a8c62859 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -117,10 +117,10 @@ #define PAGE_AGP __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_NO_CACHE) #define HAVE_PAGE_AGP -#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | \ - _PAGE_NO_CACHE | _PAGE_WRITETHRU | \ - _PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \ - _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC) +#define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | \ + _PAGE_NO_CACHE | _PAGE_WRITETHRU | \ + _PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \ + _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC) /* PTEIDX nibble */ #define _PTEIDX_SECONDARY 0x8 #define _PTEIDX_GROUP_IX 0x7 @@ -264,9 +264,9 @@ static inline pte_t pte_mkhuge(pte_t pte) { return pte; } static inline pte_t pte_mkspecial(pte_t pte) { pte_val(pte) |= _PAGE_SPECIAL; return pte; } -static inline unsigned long pte_pgprot(pte_t pte) +static inline pgprot_t pte_pgprot(pte_t pte) { - return __pgprot(pte_val(pte)) & PAGE_PROT_BITS; + return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } /* Atomic PTE updates */ |