1 /* 2 * 3 * Copyright 2013 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _ARCH_EXCEPTION_H 30 #define _ARCH_EXCEPTION_H 31 32 #include <stdint.h> 33 34 void exception_dispatch(u32 idx); 35 void set_vbar(uint32_t vbar); 36 37 struct exception_state 38 { 39 u32 regs[16]; 40 u32 cpsr; 41 } __packed; 42 extern struct exception_state exception_state; 43 44 extern u32 exception_stack[]; 45 extern u32 *exception_stack_end; 46 extern struct exception_state *exception_state_ptr; 47 48 enum { 49 EXC_UNDEF = 1, 50 EXC_SWI = 2, 51 EXC_PABORT = 3, 52 EXC_DABORT = 4, 53 EXC_IRQ = 6, 54 EXC_FIQ = 7, 55 EXC_COUNT 56 }; 57 58 #endif 59