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

[pandora-kernel.git] / arch / arm / mm / pabort-v7.S

diff --git a/arch/arm/mm/pabort-v7.S b/arch/arm/mm/pabort-v7.S
new file mode 100644 (file)
index 0000000..a8b3b30
--- /dev/null
+++ b/arch/arm/mm/pabort-v7.S
@@ -0,0 +1,20 @@
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Function: v6_pabort
+ *
+ * Params  : r0 = address of aborted instruction
+ *
+ * Returns : r0 = address of abort
+ *        : r1 = IFSR
+ *
+ * Purpose : obtain information about current prefetch abort.
+ */
+
+       .align  5
+ENTRY(v7_pabort)
+       mrc     p15, 0, r0, c6, c0, 2           @ get IFAR
+       mrc     p15, 0, r1, c5, c0, 1           @ get IFSR
+       mov     pc, lr
+ENDPROC(v7_pabort)