Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/book3s/64/hash-4k.h | 60 ++++++++++++++++++++++++
arch/powerpc/include/asm/book3s/64/pgtable-64k.h | 60 ------------------------
arch/powerpc/include/asm/book3s/64/pgtable.h | 57 ++++++++++++++++++++++
arch/powerpc/platforms/Kconfig.cputype | 2 +-
4 files changed, 118 insertions(+), 61 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h
b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index 4d2ae7fdc4f9..add4d554312c 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -29,6 +29,7 @@
#define H_PAGE_THP_HUGE 0x0
#define H_PTE_FRAG_NR 0
#define H_PTE_FRAG_SIZE_SHIFT 0
+#define H_PAGE_COMBO 0x0
/*
* On all 4K setups, remap_4k_pfn() equates to remap_pfn_range()
*/
@@ -49,6 +50,65 @@ static inline int hl_hugepd_ok(hugepd_t hpd)
}
#endif
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+
+static inline char *get_hpte_slot_array(pmd_t *pmdp)
+{
+ BUG();
+ return NULL;
+}
+
+static inline unsigned int hpte_valid(unsigned char *hpte_slot_array, int
index)
+{
+ BUG();
+ return 0;
+}
+
+static inline unsigned int hpte_hash_index(unsigned char *hpte_slot_array,
+ int index)
+{
+ BUG();
+ return 0;
+}
+
+static inline void mark_hpte_slot_valid(unsigned char *hpte_slot_array,
+ unsigned int index, unsigned int hidx)
+{
+ BUG();
+}
+
+static inline int hlpmd_trans_huge(pmd_t pmd)
+{
+ return 0;
+}
+
+static inline int hlpmd_same(pmd_t pmd_a, pmd_t pmd_b)
+{
+ BUG();
+ return 0;
+}
+
+static inline pmd_t hlpmd_mkhuge(pmd_t pmd)
+{
+ BUG();
+ return pmd;
+}
+
+extern unsigned long hlpmd_hugepage_update(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp,
+ unsigned long clr, unsigned long
set);
+extern pmd_t hlpmdp_collapse_flush(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp);
+extern void hlpgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
+ pgtable_t pgtable);
+extern pgtable_t hlpgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t
*pmdp);
+extern void hlpmdp_huge_split_prepare(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp);
+extern pmd_t hlpmdp_huge_get_and_clear(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp);
+extern int hl_has_transparent_hugepage(void);
+#endif
+
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_HASH_4K_H */
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
index 1803458a3297..888c25a491b0 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
@@ -53,66 +53,6 @@ static inline int hugepd_ok(hugepd_t hpd)
#endif /* CONFIG_HUGETLB_PAGE */
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline int pmd_large(pmd_t pmd)
-{
- return !!(pmd_val(pmd) & _PAGE_PTE);
-}
-
-static inline pmd_t pmd_mknotpresent(pmd_t pmd)
-{
- return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT);
-}
-/*
- * For radix we should always find H_PAGE_HASHPTE zero. Hence
- * the below will work for radix too
- */
-static inline int __pmdp_test_and_clear_young(struct mm_struct *mm,
- unsigned long addr, pmd_t *pmdp)
-{
- unsigned long old;
-
- if ((pmd_val(*pmdp) & (_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0)
- return 0;
- old = pmd_hugepage_update(mm, addr, pmdp, _PAGE_ACCESSED, 0);
- return ((old & _PAGE_ACCESSED) != 0);
-}
-
-#define __HAVE_ARCH_PMDP_SET_WRPROTECT
-static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp)
-{
-
- if ((pmd_val(*pmdp) & _PAGE_WRITE) == 0)
- return;
-
- pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0);
-}
-
-static inline int pmd_trans_huge(pmd_t pmd)
-{
- if (radix_enabled())
- return rpmd_trans_huge(pmd);
- return hlpmd_trans_huge(pmd);
-}
-
-#define __HAVE_ARCH_PMD_SAME
-static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
-{
- if (radix_enabled())
- return rpmd_same(pmd_a, pmd_b);
- return hlpmd_same(pmd_a, pmd_b);
-}
-
-static inline pmd_t pmd_mkhuge(pmd_t pmd)
-{
- if (radix_enabled())
- return rpmd_mkhuge(pmd);
- return hlpmd_mkhuge(pmd);
-}
-
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-
static inline int remap_4k_pfn(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn, pgprot_t prot)
{
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 7eda6d2e5124..24d89e9001e0 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -841,6 +841,63 @@ pmd_hugepage_update(struct mm_struct *mm, unsigned long
addr, pmd_t *pmdp,
return hlpmd_hugepage_update(mm, addr, pmdp, clr, set);
}
+static inline int pmd_large(pmd_t pmd)
+{
+ return !!(pmd_val(pmd) & _PAGE_PTE);
+}
+
+static inline pmd_t pmd_mknotpresent(pmd_t pmd)
+{
+ return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT);
+}
+/*
+ * For radix we should always find H_PAGE_HASHPTE zero. Hence
+ * the below will work for radix too
+ */
+static inline int __pmdp_test_and_clear_young(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp)
+{
+ unsigned long old;
+
+ if ((pmd_val(*pmdp) & (_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0)
+ return 0;
+ old = pmd_hugepage_update(mm, addr, pmdp, _PAGE_ACCESSED, 0);
+ return ((old & _PAGE_ACCESSED) != 0);
+}
+
+#define __HAVE_ARCH_PMDP_SET_WRPROTECT
+static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp)
+{
+
+ if ((pmd_val(*pmdp) & _PAGE_WRITE) == 0)
+ return;
+
+ pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0);
+}
+
+static inline int pmd_trans_huge(pmd_t pmd)
+{
+ if (radix_enabled())
+ return rpmd_trans_huge(pmd);
+ return hlpmd_trans_huge(pmd);
+}
+
+#define __HAVE_ARCH_PMD_SAME
+static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
+{
+ if (radix_enabled())
+ return rpmd_same(pmd_a, pmd_b);
+ return hlpmd_same(pmd_a, pmd_b);
+}
+
+static inline pmd_t pmd_mkhuge(pmd_t pmd)
+{
+ if (radix_enabled())
+ return rpmd_mkhuge(pmd);
+ return hlpmd_mkhuge(pmd);
+}
+
#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
extern int pmdp_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp,
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc/platforms/Kconfig.cputype
index 53299182dba9..ad9c77399aab 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -72,7 +72,7 @@ config PPC_BOOK3S_64
select PPC_FPU
select PPC_HAVE_PMU_SUPPORT
select SYS_SUPPORTS_HUGETLBFS
- select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select ARCH_SUPPORTS_NUMA_BALANCING
select IRQ_WORK
--
2.5.0
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