From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 include/asm-m68k/motorola_pgalloc.h | 107 ++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 include/asm-m68k/motorola_pgalloc.h

(limited to 'include/asm-m68k/motorola_pgalloc.h')

diff --git a/include/asm-m68k/motorola_pgalloc.h b/include/asm-m68k/motorola_pgalloc.h
new file mode 100644
index 000000000000..5158412cd54d
--- /dev/null
+++ b/include/asm-m68k/motorola_pgalloc.h
@@ -0,0 +1,107 @@
+#ifndef _MOTOROLA_PGALLOC_H
+#define _MOTOROLA_PGALLOC_H
+
+#include <asm/tlb.h>
+#include <asm/tlbflush.h>
+
+extern pmd_t *get_pointer_table(void);
+extern int free_pointer_table(pmd_t *);
+
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+	pte_t *pte;
+
+	pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+	if (pte) {
+		__flush_page_to_ram(pte);
+		flush_tlb_kernel_page(pte);
+		nocache_page(pte);
+	}
+
+	return pte;
+}
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+	cache_page(pte);
+	free_page((unsigned long) pte);
+}
+
+static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+	pte_t *pte;
+
+	if(!page)
+		return NULL;
+
+	pte = kmap(page);
+	if (pte) {
+		__flush_page_to_ram(pte);
+		flush_tlb_kernel_page(pte);
+		nocache_page(pte);
+	}
+	kunmap(pte);
+
+	return page;
+}
+
+static inline void pte_free(struct page *page)
+{
+	cache_page(kmap(page));
+	kunmap(page);
+	__free_page(page);
+}
+
+static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page)
+{
+	cache_page(kmap(page));
+	kunmap(page);
+	__free_page(page);
+}
+
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	return get_pointer_table();
+}
+
+static inline int pmd_free(pmd_t *pmd)
+{
+	return free_pointer_table(pmd);
+}
+
+static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+	return free_pointer_table(pmd);
+}
+
+
+static inline void pgd_free(pgd_t *pgd)
+{
+	pmd_free((pmd_t *)pgd);
+}
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	return (pgd_t *)get_pointer_table();
+}
+
+
+static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+	pmd_set(pmd, pte);
+}
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
+{
+	pmd_set(pmd, page_address(page));
+}
+
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+	pgd_set(pgd, pmd);
+}
+
+#endif /* _MOTOROLA_PGALLOC_H */
-- 
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