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Diffstat (limited to 'arch/powerpc/mm/hugetlbpage.c')
-rw-r--r--arch/powerpc/mm/hugetlbpage.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index a4a90a869999..5aac1a3f86cd 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -711,6 +711,9 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
struct hstate *hstate = hstate_file(file);
int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
+ if (radix_enabled())
+ return radix__hugetlb_get_unmapped_area(file, addr, len,
+ pgoff, flags);
return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1);
}
#endif
@@ -719,14 +722,14 @@ unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
{
#ifdef CONFIG_PPC_MM_SLICES
unsigned int psize = get_slice_psize(vma->vm_mm, vma->vm_start);
-
- return 1UL << mmu_psize_to_shift(psize);
-#else
+ /* With radix we don't use slice, so derive it from vma*/
+ if (!radix_enabled())
+ return 1UL << mmu_psize_to_shift(psize);
+#endif
if (!is_vm_hugetlb_page(vma))
return PAGE_SIZE;
return huge_page_size(hstate_vma(vma));
-#endif
}
static inline bool is_power_of_4(unsigned long x)
@@ -825,7 +828,7 @@ static int __init hugetlbpage_init(void)
{
int psize;
- if (!mmu_has_feature(MMU_FTR_16M_PAGE))
+ if (!radix_enabled() && !mmu_has_feature(MMU_FTR_16M_PAGE))
return -ENODEV;
for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
@@ -865,6 +868,9 @@ static int __init hugetlbpage_init(void)
HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_16M].shift;
else if (mmu_psize_defs[MMU_PAGE_1M].shift)
HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_1M].shift;
+ else if (mmu_psize_defs[MMU_PAGE_2M].shift)
+ HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_2M].shift;
+
return 0;
}
@@ -1005,9 +1011,9 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
end = pte_end;
pte = READ_ONCE(*ptep);
- mask = _PAGE_PRESENT | _PAGE_USER;
+ mask = _PAGE_PRESENT | _PAGE_READ;
if (write)
- mask |= _PAGE_RW;
+ mask |= _PAGE_WRITE;
if ((pte_val(pte) & mask) != mask)
return 0;