ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()

[firefly-linux-kernel-4.4.55.git] / arch / arm / mm / pabort-legacy.S

diff --git a/arch/arm/mm/pabort-legacy.S b/arch/arm/mm/pabort-legacy.S
new file mode 100644 (file)
index 0000000..87970eb
--- /dev/null
+++ b/arch/arm/mm/pabort-legacy.S
@@ -0,0 +1,19 @@
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Function: legacy_pabort
+ *
+ * Params  : r0 = address of aborted instruction
+ *
+ * Returns : r0 = address of abort
+ *        : r1 = Simulated IFSR with section translation fault status
+ *
+ * Purpose : obtain information about current prefetch abort.
+ */
+
+       .align  5
+ENTRY(legacy_pabort)
+       mov     r1, #5
+       mov     pc, lr
+ENDPROC(legacy_pabort)