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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 20:19:40 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 20:19:40 +0400
commit024b246ed24492d6c2ee14c34d742b137fce1b94 (patch)
tree428444950025503218c96b03c86f749403626dec /arch/alpha/include/asm/pgalloc.h
parent9419fc1c957d600093baaea247fef23cca3b4e93 (diff)
downloadlinux-024b246ed24492d6c2ee14c34d742b137fce1b94.tar.xz
alpha: move include/asm-alpha to arch/alpha/include/asm
Sam Ravnborg did the build-test that the direct header file move works, I'm just committing it. This is a pure move: mkdir arch/alpha/include git mv include/asm-alpha arch/alpha/include/asm with no other changes. Requested-and-tested-by: Sam Ravnborg <sam@ravnborg.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/include/asm/pgalloc.h')
-rw-r--r--arch/alpha/include/asm/pgalloc.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
new file mode 100644
index 000000000000..fd090155dccd
--- /dev/null
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -0,0 +1,83 @@
+#ifndef _ALPHA_PGALLOC_H
+#define _ALPHA_PGALLOC_H
+
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+
+/*
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
+{
+ pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
+}
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+ pmd_set(pmd, pte);
+}
+
+static inline void
+pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+ pgd_set(pgd, pmd);
+}
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+
+static inline void
+pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ free_page((unsigned long)pgd);
+}
+
+static inline pmd_t *
+pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+ return ret;
+}
+
+static inline void
+pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ free_page((unsigned long)pmd);
+}
+
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+
+static inline void
+pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+ free_page((unsigned long)pte);
+}
+
+static inline pgtable_t
+pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ pte_t *pte = pte_alloc_one_kernel(mm, address);
+ struct page *page;
+
+ if (!pte)
+ return NULL;
+ page = virt_to_page(pte);
+ pgtable_page_ctor(page);
+ return page;
+}
+
+static inline void
+pte_free(struct mm_struct *mm, pgtable_t page)
+{
+ pgtable_page_dtor(page);
+ __free_page(page);
+}
+
+#define check_pgt_cache() do { } while (0)
+
+#endif /* _ALPHA_PGALLOC_H */