1 files changed, 59 insertions, 0 deletions
diff --git a/core/utils.c b/core/utils.c
new file mode 100644
index 00000000..2bc57b19
--- /dev/null
+++ b/core/utils.c
@@ -0,0 +1,59 @@
+/* Copyright 2013-2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * 	http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <skiboot.h>
+#include <lock.h>
+#include <fsp.h>
+#include <processor.h>
+
+void abort(void)
+{
+	static bool in_abort = false;
+	unsigned long hid0;
+
+	if (in_abort)
+		for (;;) ;
+	in_abort = true;
+
+	bust_locks = true;
+
+	op_display(OP_FATAL, OP_MOD_CORE, 0x6666);
+	
+	fputs("Aborting!\n", stderr);
+	backtrace();
+
+	/* XXX FIXME: We should fsp_poll for a while to ensure any pending
+	 * console writes have made it out, but until we have decent PSI
+	 * link handling we must not do it forever. Polling can prevent the
+	 * FSP from bringing the PSI link up and it can get stuck in a
+	 * reboot loop.
+	 */
+
+	hid0 = mfspr(SPR_HID0);
+	hid0 |= SPR_HID0_ENABLE_ATTN;
+	set_hid0(hid0);
+	trigger_attn();
+	for (;;) ;
+}
+
+char __attrconst tohex(uint8_t nibble)
+{
+	static const char __tohex[] = {'0','1','2','3','4','5','6','7','8','9',
+				       'A','B','C','D','E','F'};
+	if (nibble > 0xf)
+		return '?';
+	return __tohex[nibble];
+}