From 044003b52a78bcbda7103633c351da16505096cf Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Tue, 29 May 2018 19:58:39 +0530 Subject: powerpc/mm/radix: Move function from radix.h to pgtable-radix.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In later patch we will update them which require them to be moved to pgtable-radix.c. Keeping the function in radix.h results in compile warning as below. ./arch/powerpc/include/asm/book3s/64/radix.h: In function ‘radix__ptep_set_access_flags’: ./arch/powerpc/include/asm/book3s/64/radix.h:196:28: error: dereferencing pointer to incomplete type ‘struct vm_area_struct’ struct mm_struct *mm = vma->vm_mm; ^~ ./arch/powerpc/include/asm/book3s/64/radix.h:204:6: error: implicit declaration of function ‘atomic_read’; did you mean ‘__atomic_load’? [-Werror=implicit-function-declaration] atomic_read(&mm->context.copros) > 0) { ^~~~~~~~~~~ __atomic_load ./arch/powerpc/include/asm/book3s/64/radix.h:204:21: error: dereferencing pointer to incomplete type ‘struct mm_struct’ atomic_read(&mm->context.copros) > 0) { Instead of fixing header dependencies, we move the function to pgtable-radix.c Also the function is now large to be a static inline . Doing the move in separate patch helps in review. No functional change in this patch. Only code movement. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman --- arch/powerpc/mm/pgtable-radix.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/powerpc/mm') diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index ce24d72ea679..a6eec41dd347 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -1084,3 +1084,25 @@ int radix__has_transparent_hugepage(void) return 0; } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ + +void radix__ptep_set_access_flags(struct mm_struct *mm, + pte_t *ptep, pte_t entry, + unsigned long address) +{ + unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_ACCESSED | + _PAGE_RW | _PAGE_EXEC); + + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { + unsigned long old_pte, new_pte; + + old_pte = __radix_pte_update(ptep, ~0, 0); + /* + * new value of pte + */ + new_pte = old_pte | set; + radix__flush_tlb_pte_p9_dd1(old_pte, mm, address); + __radix_pte_update(ptep, 0, new_pte); + } else + __radix_pte_update(ptep, 0, set); + asm volatile("ptesync" : : : "memory"); +} -- cgit v1.2.3