Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / sh / include / asm / hugetlb.h

diff --git a/kernel/arch/sh/include/asm/hugetlb.h b/kernel/arch/sh/include/asm/hugetlb.h
new file mode 100644 (file)
index 0000000..699255d
--- /dev/null
+++ b/kernel/arch/sh/include/asm/hugetlb.h
@@ -0,0 +1,99 @@
+#ifndef _ASM_SH_HUGETLB_H
+#define _ASM_SH_HUGETLB_H
+
+#include <asm/cacheflush.h>
+#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
+
+
+static inline int is_hugepage_only_range(struct mm_struct *mm,
+                                        unsigned long addr,
+                                        unsigned long len) {
+       return 0;
+}
+
+/*
+ * If the arch doesn't supply something else, assume that hugepage
+ * size aligned regions are ok without further preparation.
+ */
+static inline int prepare_hugepage_range(struct file *file,
+                       unsigned long addr, unsigned long len)
+{
+       if (len & ~HPAGE_MASK)
+               return -EINVAL;
+       if (addr & ~HPAGE_MASK)
+               return -EINVAL;
+       return 0;
+}
+
+static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
+}
+
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+                                         unsigned long addr, unsigned long end,
+                                         unsigned long floor,
+                                         unsigned long ceiling)
+{
+       free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+                                  pte_t *ptep, pte_t pte)
+{
+       set_pte_at(mm, addr, ptep, pte);
+}
+
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+                                           unsigned long addr, pte_t *ptep)
+{
+       return ptep_get_and_clear(mm, addr, ptep);
+}
+
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+                                        unsigned long addr, pte_t *ptep)
+{
+}
+
+static inline int huge_pte_none(pte_t pte)
+{
+       return pte_none(pte);
+}
+
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+       return pte_wrprotect(pte);
+}
+
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+                                          unsigned long addr, pte_t *ptep)
+{
+       ptep_set_wrprotect(mm, addr, ptep);
+}
+
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+                                            unsigned long addr, pte_t *ptep,
+                                            pte_t pte, int dirty)
+{
+       return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+       return *ptep;
+}
+
+static inline int arch_prepare_hugepage(struct page *page)
+{
+       return 0;
+}
+
+static inline void arch_release_hugepage(struct page *page)
+{
+}
+
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+       clear_bit(PG_dcache_clean, &page->flags);
+}
+
+#endif /* _ASM_SH_HUGETLB_H */