| /* Copyright (c) 2012, The Linux Foundation. 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. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * 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. |
| * |
| */ |
| |
| #include <sys/types.h> |
| |
| #define RLOCK_CHUNK_NAME_LENGTH 10 |
| #define RLOCK_CHUNK_NAME "PMIC_SSBI" |
| #define DEK_LOCK_REQUEST 1 |
| #define DEK_LOCK_YIELD (!DEK_LOCK_REQUEST) |
| #define DEK_YIELD_TURN_SELF 0 |
| |
| struct rlock_chunk_header { |
| uint32_t size; |
| char name[RLOCK_CHUNK_NAME_LENGTH]; |
| uint32_t lock; |
| uint32_t reserved; |
| uint32_t type; |
| uint32_t version; |
| }; |
| struct dek_spinlock { |
| volatile uint8_t self_lock; |
| volatile uint8_t other_lock; |
| volatile uint8_t next_yield; |
| uint8_t pad; |
| }; |
| |
| typedef union { |
| volatile uint32_t lock; |
| struct dek_spinlock dek; |
| } raw_remote_spinlock_t; |
| |
| typedef raw_remote_spinlock_t *remote_spinlock_t; |
| |
| remote_spinlock_t rlock; |