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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/sh/mm/nommu.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/sh/mm/nommu.c')
-rw-r--r--arch/sh/mm/nommu.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/arch/sh/mm/nommu.c b/arch/sh/mm/nommu.c
new file mode 100644
index 00000000..36312d25
--- /dev/null
+++ b/arch/sh/mm/nommu.c
@@ -0,0 +1,104 @@
+/*
+ * arch/sh/mm/nommu.c
+ *
+ * Various helper routines and stubs for MMUless SH.
+ *
+ * Copyright (C) 2002 - 2009 Paul Mundt
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <asm/page.h>
+#include <asm/uaccess.h>
+
+/*
+ * Nothing too terribly exciting here ..
+ */
+void copy_page(void *to, void *from)
+{
+ memcpy(to, from, PAGE_SIZE);
+}
+
+__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n)
+{
+ memcpy(to, from, n);
+ return 0;
+}
+
+__kernel_size_t __clear_user(void *to, __kernel_size_t n)
+{
+ memset(to, 0, n);
+ return 0;
+}
+
+void local_flush_tlb_all(void)
+{
+ BUG();
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+ BUG();
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+ unsigned long end)
+{
+ BUG();
+}
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+ BUG();
+}
+
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
+{
+ BUG();
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+ BUG();
+}
+
+void __flush_tlb_global(void)
+{
+}
+
+void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+{
+}
+
+void __init kmap_coherent_init(void)
+{
+}
+
+void *kmap_coherent(struct page *page, unsigned long addr)
+{
+ BUG();
+ return NULL;
+}
+
+void kunmap_coherent(void *kvaddr)
+{
+ BUG();
+}
+
+void __init page_table_range_init(unsigned long start, unsigned long end,
+ pgd_t *pgd_base)
+{
+}
+
+void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
+{
+}
+
+void pgtable_cache_init(void)
+{
+}