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/*

 * Low level cache control functions.

 *

 * Copyright (C) 2009 - 2010 B Labs Ltd.

 *

 * Author: Bahadir Balban

 */

#include <l4/lib/printk.h>

#include <l4/api/errno.h>

#include <l4/generic/tcb.h>

#include <l4/api/cache.h>

#include <l4/generic/capability.h>

#include INC_GLUE(cache.h)

int sys_cache_control(unsigned long start, unsigned long end,

                      unsigned int flags)

{

        int ret = 0;

        if ((ret = cap_cache_check(start, end, flags)) < 0)

                return ret;

        switch (flags) {

        case L4_INVALIDATE_ICACHE:

                arch_invalidate_icache(start, end);

                break;

        case L4_INVALIDATE_DCACHE:

                arch_invalidate_dcache(start, end);

                break;

        case L4_CLEAN_DCACHE:

                arch_clean_dcache(start, end);

                break;

        case L4_CLEAN_INVALIDATE_DCACHE:

                arch_clean_invalidate_dcache(start, end);

                break;

        case L4_INVALIDATE_TLB:

                arch_invalidate_tlb(start, end);

                break;

        default:

                ret = -EINVAL;

        }

        return ret;

}