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powerpc/mm: Add radix support for hugetlb

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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
2016-04-29 23:26:25 +10:00
committed by Michael Ellerman
parent 2f5f0dfd1e
commit 484837601d
6 changed files with 132 additions and 1 deletions
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14
arch/powerpc/include/asm/hugetlb.h
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@@ -8,6 +8,8 @@
extern struct kmem_cache *hugepte_cache;
#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/book3s/64/hugetlb-radix.h>
/*
* This should work for other subarchs too. But right now we use the
* new format only for 64bit book3s
@@ -31,7 +33,19 @@ static inline unsigned int hugepd_shift(hugepd_t hpd)
{
return mmu_psize_to_shift(hugepd_mmu_psize(hpd));
}
static inline void flush_hugetlb_page(struct vm_area_struct *vma,
unsigned long vmaddr)
{
if (radix_enabled())
return radix__flush_hugetlb_page(vma, vmaddr);
}
static inline void __local_flush_hugetlb_page(struct vm_area_struct *vma,
unsigned long vmaddr)
{
if (radix_enabled())
return radix__local_flush_hugetlb_page(vma, vmaddr);
}
#else
static inline pte_t *hugepd_page(hugepd_t hpd)