| 0,0 → 1,89 |
|---|
| /* |
| * Copyright (c) 2007 Pavel Jancik, Michal Kebrt |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup arm32mm |
| * @{ |
| */ |
| /** @file |
| * @brief Page fault related declarations. |
| */ |
| |
| #ifndef KERN_arm32_PAGE_FAULT_H_ |
| #define KERN_arm32_PAGE_FAULT_H_ |
| |
| #include <arch/types.h> |
| |
| |
| /** Decribes CP15 "fault status register" (FSR). */ |
| typedef struct { |
| unsigned status : 3; |
| unsigned domain : 4; |
| unsigned zero : 1; |
| unsigned should_be_zero : 24; |
| } ATTRIBUTE_PACKED fault_status_t; |
| |
| |
| /** Help union used for casting integer value into #fault_status_t. */ |
| typedef union { |
| fault_status_t fs; |
| uint32_t dummy; |
| } fault_status_union_t; |
| |
| |
| /** Simplified description of instruction code. |
| * |
| * @note Used for recognizing memory access instructions. |
| * @see ARM architecture reference (chapter 3.1) |
| */ |
| typedef struct { |
| unsigned dummy1 : 4; |
| unsigned bit4 : 1; |
| unsigned bits567 : 3; |
| unsigned dummy : 12; |
| unsigned access : 1; |
| unsigned opcode : 4; |
| unsigned type : 3; |
| unsigned condition : 4; |
| } ATTRIBUTE_PACKED instruction_t; |
| |
| |
| /** Help union used for casting pc register (uint_32_t) value into |
| * #instruction_t pointer. |
| */ |
| typedef union { |
| instruction_t *instr; |
| uint32_t pc; |
| } instruction_union_t; |
| |
| extern void prefetch_abort(int n, istate_t *istate); |
| extern void data_abort(int n, istate_t *istate); |
| |
| #endif |
| |
| /** @} |
| */ |