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/*
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file SAMA5D2x/sama_cache.c
* @brief SAMA CACHE support code.
*
* @addtogroup SAMA5D2x_CACHE
* @{
*/
#include "hal.h"
/**
* @brief Invalidate D-Cache Region
* @TODO: Extend to L2C
*
* @param[in] start Pointer to beginning of memory region.
* @param[in] length Length of the memory location.
*/
void cacheInvalidateRegion(void *start, uint32_t length) {
uint32_t start_addr = (uint32_t)start;
uint32_t end_addr = start_addr + length;
uint32_t mva;
/* Invalidate L1 D-Cache */
for (mva = start_addr & ~L1_CACHE_BYTES; mva < end_addr; mva += L1_CACHE_BYTES) {
L1C_InvalidateDCacheMVA((uint32_t *)mva);
}
}
/**
* @brief Clean D-Cache Region
* @TODO: Extend to L2C
*
* @param[in] start Pointer to beginning of memory region.
* @param[in] length Length of the memory location.
*/
void cacheCleanRegion(void *start, uint32_t length) {
uint32_t start_addr = (uint32_t)start;
uint32_t end_addr = start_addr + length;
uint32_t mva;
/* Clean L1 D-Cache */
for (mva = start_addr & ~L1_CACHE_BYTES; mva < end_addr; mva += L1_CACHE_BYTES) {
L1C_CleanDCacheMVA((uint32_t *)mva);
}
}
/** @} */
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