Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mm / fault.h

diff --git a/kernel/arch/arm/mm/fault.h b/kernel/arch/arm/mm/fault.h
new file mode 100644 (file)
index 0000000..cf08bdf
--- /dev/null
+++ b/kernel/arch/arm/mm/fault.h
@@ -0,0 +1,28 @@
+#ifndef __ARCH_ARM_FAULT_H
+#define __ARCH_ARM_FAULT_H
+
+/*
+ * Fault status register encodings.  We steal bit 31 for our own purposes.
+ */
+#define FSR_LNX_PF             (1 << 31)
+#define FSR_WRITE              (1 << 11)
+#define FSR_FS4                        (1 << 10)
+#define FSR_FS3_0              (15)
+#define FSR_FS5_0              (0x3f)
+
+#ifdef CONFIG_ARM_LPAE
+static inline int fsr_fs(unsigned int fsr)
+{
+       return fsr & FSR_FS5_0;
+}
+#else
+static inline int fsr_fs(unsigned int fsr)
+{
+       return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
+}
+#endif
+
+void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
+unsigned long search_exception_table(unsigned long addr);
+
+#endif /* __ARCH_ARM_FAULT_H */