u-boot/arch/riscv/lib/cache.c
Simon Glass 9edefc2776 common: Move some cache and MMU functions out of common.h
These functions belong in cpu_func.h. Another option would be cache.h
but that code uses driver model and we have not moved these cache
functions to use driver model. Since they are CPU-related it seems
reasonable to put them here.

Move them over.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:55 -05:00

72 lines
1.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Andes Technology Corporation
* Rick Chen, Andes Technology Corporation <rick@andestech.com>
*/
#include <common.h>
#include <cpu_func.h>
void invalidate_icache_all(void)
{
asm volatile ("fence.i" ::: "memory");
}
__weak void flush_dcache_all(void)
{
}
__weak void flush_dcache_range(unsigned long start, unsigned long end)
{
}
void invalidate_icache_range(unsigned long start, unsigned long end)
{
/*
* RISC-V does not have an instruction for invalidating parts of the
* instruction cache. Invalidate all of it instead.
*/
invalidate_icache_all();
}
__weak void invalidate_dcache_range(unsigned long start, unsigned long end)
{
}
void cache_flush(void)
{
invalidate_icache_all();
flush_dcache_all();
}
void flush_cache(unsigned long addr, unsigned long size)
{
invalidate_icache_range(addr, addr + size);
flush_dcache_range(addr, addr + size);
}
__weak void icache_enable(void)
{
}
__weak void icache_disable(void)
{
}
__weak int icache_status(void)
{
return 0;
}
__weak void dcache_enable(void)
{
}
__weak void dcache_disable(void)
{
}
__weak int dcache_status(void)
{
return 0;
}