/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2019-03-29 quanzhao the first version * 2020-07-26 lizhirui porting to ls2k */ #include <rthw.h> #include <rtdef.h> rt_inline rt_uint64_t rt_cpu_icache_line_size(void) { rt_uint64_t ctr; return 4 << (ctr & 0xF); } rt_inline rt_uint64_t rt_cpu_dcache_line_size(void) { rt_uint64_t ctr; return 4 << ((ctr >> 16) & 0xF); } void rt_hw_cpu_icache_invalidate(void *addr, int size) { rt_uint64_t line_size = rt_cpu_icache_line_size(); rt_uint64_t start_addr = (rt_uint64_t)addr; rt_uint64_t end_addr = (rt_uint64_t) addr + size + line_size - 1; } void rt_hw_cpu_dcache_invalidate(void *addr, int size) { rt_uint64_t line_size = rt_cpu_dcache_line_size(); rt_uint64_t start_addr = (rt_uint64_t)addr; rt_uint64_t end_addr = (rt_uint64_t) addr + size + line_size - 1; } void rt_hw_cpu_dcache_clean(void *addr, int size) { rt_uint64_t line_size = rt_cpu_dcache_line_size(); rt_uint64_t start_addr = (rt_uint64_t)addr; rt_uint64_t end_addr = (rt_uint64_t) addr + size + line_size - 1; } void rt_hw_cpu_icache_ops(int ops, void *addr, int size) { if (ops == RT_HW_CACHE_INVALIDATE) rt_hw_cpu_icache_invalidate(addr, size); } void rt_hw_cpu_dcache_ops(int ops, void *addr, int size) { if (ops == RT_HW_CACHE_FLUSH) rt_hw_cpu_dcache_clean(addr, size); else if (ops == RT_HW_CACHE_INVALIDATE) rt_hw_cpu_dcache_invalidate(addr, size); } rt_base_t rt_hw_cpu_icache_status(void) { return 0; } rt_base_t rt_hw_cpu_dcache_status(void) { return 0; }