Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / x86 / include / asm / mmu.h

diff --git a/kernel/arch/x86/include/asm/mmu.h b/kernel/arch/x86/include/asm/mmu.h
new file mode 100644 (file)
index 0000000..09b9620
--- /dev/null
+++ b/kernel/arch/x86/include/asm/mmu.h
@@ -0,0 +1,34 @@
+#ifndef _ASM_X86_MMU_H
+#define _ASM_X86_MMU_H
+
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+
+/*
+ * The x86 doesn't have a mmu context, but
+ * we put the segment information here.
+ */
+typedef struct {
+       void *ldt;
+       int size;
+
+#ifdef CONFIG_X86_64
+       /* True if mm supports a task running in 32 bit compatibility mode. */
+       unsigned short ia32_compat;
+#endif
+
+       struct mutex lock;
+       void __user *vdso;
+
+       atomic_t perf_rdpmc_allowed;    /* nonzero if rdpmc is allowed */
+} mm_context_t;
+
+#ifdef CONFIG_SMP
+void leave_mm(int cpu);
+#else
+static inline void leave_mm(int cpu)
+{
+}
+#endif
+
+#endif /* _ASM_X86_MMU_H */