Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / hexagon / include / asm / kgdb.h

diff --git a/kernel/arch/hexagon/include/asm/kgdb.h b/kernel/arch/hexagon/include/asm/kgdb.h
new file mode 100644 (file)
index 0000000..ccd3ac3
--- /dev/null
+++ b/kernel/arch/hexagon/include/asm/kgdb.h
@@ -0,0 +1,44 @@
+/*
+ * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support
+ *
+ * Copyright (c) 2011, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __HEXAGON_KGDB_H__
+#define __HEXAGON_KGDB_H__
+
+#define BREAK_INSTR_SIZE 4
+#define CACHE_FLUSH_IS_SAFE   1
+#define BUFMAX       ((NUMREGBYTES * 2) + 512)
+
+static inline void arch_kgdb_breakpoint(void)
+{
+       asm("trap0(#0xDB)");
+}
+
+/* Registers:
+ * 32 gpr + sa0/1 + lc0/1 + m0/1 + gp + ugp + pred + pc = 42 total.
+ * vm regs = psp+elr+est+badva = 4
+ * syscall+restart = 2 more
+ * also add cs0/1 = 2
+ * so 48 = 42 + 4 + 2 + 2
+ */
+#define DBG_USER_REGS 42
+#define DBG_MAX_REG_NUM (DBG_USER_REGS + 8)
+#define NUMREGBYTES  (DBG_MAX_REG_NUM*4)
+
+#endif /* __HEXAGON_KGDB_H__ */