summaryrefslogtreecommitdiffstats
path: root/arch/arm/mm/pabort-v7.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm/pabort-v7.S')
-rw-r--r--arch/arm/mm/pabort-v7.S22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mm/pabort-v7.S b/arch/arm/mm/pabort-v7.S
new file mode 100644
index 000000000..9c70b1a21
--- /dev/null
+++ b/arch/arm/mm/pabort-v7.S
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Function: v7_pabort
+ *
+ * Params : r2 = pt_regs
+ * : r4 = address of aborted instruction
+ * : r5 = psr for parent context
+ *
+ * Returns : r4 - r11, r13 preserved
+ *
+ * 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
+ b do_PrefetchAbort
+ENDPROC(v7_pabort)