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powerpc/mm/radix/hugetlb: Add helper for finding page size from hstate

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Use the helper instead of open coding the same at multiple place

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V
2016-07-13 15:06:42 +05:30
committed by Michael Ellerman
parent f22dfc9158
commit fbfa26d854
4 changed files with 30 additions and 28 deletions
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15
arch/powerpc/include/asm/book3s/64/hugetlb-radix.h
View File

@@ -11,4 +11,19 @@ extern unsigned long
radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags);
static inline int hstate_get_psize(struct hstate *hstate)
{
unsigned long shift;
shift = huge_page_shift(hstate);
if (shift == mmu_psize_defs[MMU_PAGE_2M].shift)
return MMU_PAGE_2M;
else if (shift == mmu_psize_defs[MMU_PAGE_1G].shift)
return MMU_PAGE_1G;
else {
WARN(1, "Wrong huge page shift\n");
return mmu_virtual_psize;
}
}
#endif

4
arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
View File

@@ -22,14 +22,14 @@ extern void radix__local_flush_tlb_mm(struct mm_struct *mm);
extern void radix__local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
extern void radix__local_flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
unsigned long ap);
int psize);
extern void radix__tlb_flush(struct mmu_gather *tlb);
#ifdef CONFIG_SMP
extern void radix__flush_tlb_mm(struct mm_struct *mm);
extern void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
unsigned long ap);
int psize);
#else
#define radix__flush_tlb_mm(mm) radix__local_flush_tlb_mm(mm)
#define radix__flush_tlb_page(vma,addr) radix__local_flush_tlb_page(vma,addr)