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Diffstat (limited to 'include/asm-um/mmu_context.h')
-rw-r--r--include/asm-um/mmu_context.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h
new file mode 100644
index 00000000000..89bff310b7a
--- /dev/null
+++ b/include/asm-um/mmu_context.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_MMU_CONTEXT_H
+#define __UM_MMU_CONTEXT_H
+
+#include "linux/sched.h"
+#include "choose-mode.h"
+
+#define get_mmu_context(task) do ; while(0)
+#define activate_context(tsk) do ; while(0)
+
+#define deactivate_mm(tsk,mm) do { } while (0)
+
+static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
+{
+}
+
+extern void switch_mm_skas(int mm_fd);
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk)
+{
+ unsigned cpu = smp_processor_id();
+
+ if(prev != next){
+ cpu_clear(cpu, prev->cpu_vm_mask);
+ cpu_set(cpu, next->cpu_vm_mask);
+ if(next != &init_mm)
+ CHOOSE_MODE((void) 0,
+ switch_mm_skas(next->context.skas.mm_fd));
+ }
+}
+
+static inline void enter_lazy_tlb(struct mm_struct *mm,
+ struct task_struct *tsk)
+{
+}
+
+extern int init_new_context_skas(struct task_struct *task,
+ struct mm_struct *mm);
+
+static inline int init_new_context_tt(struct task_struct *task,
+ struct mm_struct *mm)
+{
+ return(0);
+}
+
+static inline int init_new_context(struct task_struct *task,
+ struct mm_struct *mm)
+{
+ return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas,
+ task, mm));
+}
+
+extern void destroy_context_skas(struct mm_struct *mm);
+
+static inline void destroy_context(struct mm_struct *mm)
+{
+ CHOOSE_MODE((void) 0, destroy_context_skas(mm));
+}
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */