cache.h

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/*
 * Copyright (C) 2021, 2024 Kernkonzept GmbH.
 * Author(s): Georg Kotheimer <georg.kotheimer@kernkonzept.com>
 *
 * License: see LICENSE.spdx (in this directory or the directories above)
 */
#pragma once
 
#include <l4/sys/ipc.h>
#include <l4/sys/consts.h>
#include <l4/sys/compiler.h>
 
L4_INLINE int
l4_cache_clean_data(unsigned long start,
                    unsigned long end) L4_NOTHROW
{
  (void)start;(void)end;
  return 0;
}
 
L4_INLINE int
l4_cache_flush_data(unsigned long start,
                    unsigned long end) L4_NOTHROW
{
  (void)start;(void)end;
  return 0;
}
 
L4_INLINE int
l4_cache_inv_data(unsigned long start,
                  unsigned long end) L4_NOTHROW
{
  (void)start;(void)end;
  return 0;
}
 
L4_INLINE int
l4_cache_coherent(unsigned long start,
                  unsigned long end) L4_NOTHROW
{
  (void)start;(void)end;
  asm volatile ("fence.i");
  return 0;
}
 
L4_INLINE int
l4_cache_dma_coherent(unsigned long start,
                      unsigned long end) L4_NOTHROW
{
  (void)start;(void)end;
  return 0;
}
 
L4_INLINE int
l4_cache_dma_coherent_full(void) L4_NOTHROW
{
  return 0;
}