1 files changed, 90 insertions, 0 deletions
diff --git a/payloads/libpayload/include/mips/arch/exception.h b/payloads/libpayload/include/mips/arch/exception.h
new file mode 100644
index 0000000000..9557cb7049
--- /dev/null
+++ b/payloads/libpayload/include/mips/arch/exception.h
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2014 Imagination Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __MIPS_ARCH_EXCEPTION_H__
+#define __MIPS_ARCH_EXCEPTION_H__
+
+#include <stdint.h>
+
+void exception_init_asm(void);
+void exception_dispatch(void);
+
+struct exception_state_t {
+	struct {
+		/* Always 0: just to keep the series complete */
+		u32 zero;
+		/* Reserved for the assembler */
+		/* TODO: is this actually needed here? */
+		u32 at;
+		/* v0-v1: expression evaluation */
+		u32 v0;
+		u32 v1;
+		/* a0-a3: Arguments */
+		u32 a0;
+		u32 a1;
+		u32 a2;
+		u32 a3;
+		/* t0-t3: Temporary registers for expression evaluation */
+		u32 t0;
+		u32 t1;
+		u32 t2;
+		u32 t3;
+		u32 t4;
+		u32 t5;
+		u32 t6;
+		u32 t7;
+		/* s0-s7: Saved registers */
+		u32 s0;
+		u32 s1;
+		u32 s2;
+		u32 s3;
+		u32 s4;
+		u32 s5;
+		u32 s6;
+		u32 s7;
+		/* t8-t9: Temporary registers for expression evaluation */
+		u32 t8;
+		u32 t9;
+		/* k0-k1: reserved for SO kernel */
+		u32 k0;
+		u32 k1;
+		/* Global pointer */
+		u32 gp;
+		/* Stack pointer */
+		u32 sp;
+		/* Frame pointer */
+		u32 fp;
+		/* Return address */
+		u32 ra;
+	} regs;
+	u32 vector;
+} __attribute__((packed));
+
+extern struct exception_state_t *exception_state_ptr;
+extern u32 *exception_stack_end;
+
+enum {
+	EXC_CACHE_ERROR = 0,
+	EXC_TLB_REFILL_AND_ALL = 1,
+	EXC_INTERRUPT = 2,
+	EXC_EJTAG_DEBUG = 3,
+	EXC_COUNT
+};
+
+#endif /* __MIPS_ARCH_EXCEPTION_H__ */