dataspace.h

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/*
 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
 *               Alexander Warg <warg@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * License: see LICENSE.spdx (in this directory or the directories above)
 */
#pragma once

 
#include <l4/sys/compiler.h>
#include <l4/sys/types.h>
 
L4_BEGIN_DECLS

typedef l4_cap_idx_t l4re_ds_t;
typedef l4_uint64_t l4re_ds_size_t;
typedef l4_uint64_t l4re_ds_offset_t;
typedef l4_uint64_t l4re_ds_map_addr_t;
typedef unsigned long l4re_ds_flags_t;

typedef struct {
  l4re_ds_size_t size;    
  l4re_ds_flags_t flags;  
} l4re_ds_stats_t;

enum l4re_ds_map_flags {
  L4RE_DS_F_R   = L4_FPAGE_RO,
  L4RE_DS_F_W   = L4_FPAGE_W,
  L4RE_DS_F_X   = L4_FPAGE_X,
  L4RE_DS_F_RW  = L4_FPAGE_RW,
  L4RE_DS_F_RX  = L4_FPAGE_RX,
  L4RE_DS_F_RWX = L4_FPAGE_RWX,
 
  L4RE_DS_F_RIGHTS_MASK = 0x0f,
 
  L4RE_DS_F_NORMAL        = 0x00, 
  L4RE_DS_F_CACHEABLE     = L4RE_DS_F_NORMAL, 
  L4RE_DS_F_BUFFERABLE    = 0x10, 
  L4RE_DS_F_UNCACHEABLE   = 0x20, 
  L4RE_DS_F_CACHING_MASK  = 0x30, 
  L4RE_DS_F_CACHING_SHIFT = 4,    
};

L4_CV int
l4re_ds_map(l4re_ds_t ds,
            l4re_ds_offset_t offset,
            l4re_ds_flags_t flags,
            l4re_ds_map_addr_t local_addr,
            l4re_ds_map_addr_t min_addr,
            l4re_ds_map_addr_t max_addr) L4_NOTHROW;

L4_CV int
l4re_ds_map_region(l4re_ds_t ds,
                   l4re_ds_offset_t offset,
                   l4re_ds_flags_t flags,
                   l4re_ds_map_addr_t min_addr,
                   l4re_ds_map_addr_t max_addr) L4_NOTHROW;

L4_CV long
l4re_ds_clear(l4re_ds_t ds, l4re_ds_offset_t offset,
              l4re_ds_size_t size) L4_NOTHROW;

L4_CV long
l4re_ds_allocate(l4re_ds_t ds,
                 l4re_ds_offset_t offset,
                 l4re_ds_size_t size) L4_NOTHROW;

L4_CV int
l4re_ds_copy_in(l4re_ds_t ds, l4re_ds_offset_t dst_offs,
                l4re_ds_t src, l4re_ds_offset_t src_offs,
                l4re_ds_size_t size) L4_NOTHROW;

L4_CV l4re_ds_size_t
l4re_ds_size(l4re_ds_t ds) L4_NOTHROW;

L4_CV l4re_ds_flags_t
l4re_ds_flags(l4re_ds_t ds) L4_NOTHROW;

L4_CV int
l4re_ds_info(l4re_ds_t ds, l4re_ds_stats_t *stats) L4_NOTHROW;

L4_CV int
l4re_ds_map_info(l4re_ds_t ds,
                 l4_addr_t *start_addr, l4_addr_t *end_addr) L4_NOTHROW;
 
L4_END_DECLS