71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2006-2020, 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;
|
|
}
|