microblaze_v8: memory inicialization, MMU, TLB

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

4 files changed, 76 insertions, 0 deletions

diff --git a/arch/microblaze/include/asm/mmu.h b/arch/microblaze/include/asm/mmu.h
new file mode 100644
index 00000000000..0e0431d6163
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_H
+#define _ASM_MICROBLAZE_MMU_H
+
+#ifndef __ASSEMBLY__
+typedef struct {
+        struct vm_list_struct   *vmlist;
+        unsigned long           end_brk;
+} mm_context_t;
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_MMU_H */
diff --git a/arch/microblaze/include/asm/mmu_context.h b/arch/microblaze/include/asm/mmu_context.h
new file mode 100644
index 00000000000..150ca01b74b
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu_context.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H
+#define _ASM_MICROBLAZE_MMU_CONTEXT_H
+
+# define init_new_context(tsk, mm)              ({ 0; })
+
+# define enter_lazy_tlb(mm, tsk)                do {} while (0)
+# define change_mm_context(old, ctx, _pml4)     do {} while (0)
+# define destroy_context(mm)                    do {} while (0)
+# define deactivate_mm(tsk, mm)                 do {} while (0)
+# define switch_mm(prev, next, tsk)             do {} while (0)
+# define activate_mm(prev, next)                do {} while (0)
+
+#endif /* _ASM_MICROBLAZE_MMU_CONTEXT_H */
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
new file mode 100644
index 00000000000..d1dfe379112
--- /dev/null
+++ b/arch/microblaze/include/asm/tlb.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLB_H
+#define _ASM_MICROBLAZE_TLB_H
+
+#define tlb_flush(tlb)  do {} while (0)
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_MICROBLAZE_TLB_H */
diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h
new file mode 100644
index 00000000000..d7fe7629001
--- /dev/null
+++ b/arch/microblaze/include/asm/tlbflush.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
+#define _ASM_MICROBLAZE_TLBFLUSH_H
+
+#define flush_tlb()                             BUG()
+#define flush_tlb_all()                         BUG()
+#define flush_tlb_mm(mm)                        BUG()
+#define flush_tlb_page(vma, addr)               BUG()
+#define flush_tlb_range(mm, start, end)         BUG()
+#define flush_tlb_pgtables(mm, start, end)      BUG()
+#define flush_tlb_kernel_range(start, end)      BUG()
+
+#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */