| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2013 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. 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 AND CONTRIBUTORS ``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 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. |
| * |
| * cache.h: Cache maintenance API for ARM |
| */ |
| |
| #ifndef ARM_CACHE_H |
| #define ARM_CACHE_H |
| |
| #include <config.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| /* |
| * Cache maintenance API |
| */ |
| |
| /* dcache clean and invalidate all (on current level given by CCSELR) */ |
| void dcache_clean_invalidate_all(void); |
| |
| /* dcache clean by modified virtual address to PoC */ |
| void dcache_clean_by_mva(void const *addr, size_t len); |
| |
| /* dcache clean and invalidate by modified virtual address to PoC */ |
| void dcache_clean_invalidate_by_mva(void const *addr, size_t len); |
| |
| /* dcache invalidate by modified virtual address to PoC */ |
| void dcache_invalidate_by_mva(void const *addr, size_t len); |
| |
| void dcache_clean_all(void); |
| |
| /* dcache invalidate all (on current level given by CCSELR) */ |
| void dcache_invalidate_all(void); |
| |
| /* dcache and MMU disable */ |
| void dcache_mmu_disable(void); |
| |
| /* dcache and MMU enable */ |
| void dcache_mmu_enable(void); |
| |
| /* icache invalidate all (on current level given by CSSELR) */ |
| void icache_invalidate_all(void); |
| |
| /* tlb invalidate all */ |
| void tlb_invalidate_all(void); |
| |
| /* |
| * Generalized setup/init functions |
| */ |
| |
| /* invalidate all caches on ARM */ |
| void arm_invalidate_caches(void); |
| |
| /* mmu initialization (set page table address, set permissions, etc) */ |
| void mmu_init(void); |
| |
| enum dcache_policy { |
| DCACHE_OFF, |
| DCACHE_WRITEBACK, |
| DCACHE_WRITETHROUGH, |
| }; |
| |
| /* disable the mmu for a range. Primarily useful to lock out address 0. */ |
| void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); |
| /* mmu range configuration (set dcache policy) */ |
| void mmu_config_range(unsigned long start_mb, unsigned long size_mb, |
| enum dcache_policy policy); |
| |
| #endif /* ARM_CACHE_H */ |