cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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map_funcs.c (1119B)

      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");