LXR linux/drivers/mtd/maps/map

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
   4 * is enabled.
   5 */
   6
   7#include <linux/kernel.h>
   8#include <linux/module.h>
   9
  10#include <linux/mtd/map.h>
  11#include <linux/mtd/xip.h>
  12
  13static map_word __xipram simple_map_read(struct map_info *map, unsigned long ofs)
  14{
  15        return inline_map_read(map, ofs);
  16}
  17
  18static void __xipram simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
  19{
  20        inline_map_write(map, datum, ofs);
  21}
  22
  23static void __xipram simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
  24{
  25        inline_map_copy_from(map, to, from, len);
  26}
  27
  28static void __xipram simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
  29{
  30        inline_map_copy_to(map, to, from, len);
  31}
  32
  33void simple_map_init(struct map_info *map)
  34{
  35        BUG_ON(!map_bankwidth_supported(map->bankwidth));
  36
  37        map->read = simple_map_read;
  38        map->write = simple_map_write;
  39        map->copy_from = simple_map_copy_from;
  40        map->copy_to = simple_map_copy_to;
  41}
  42
  43EXPORT_SYMBOL(simple_map_init);
  44MODULE_LICENSE("GPL");
  45