LXR linux/arch/powerpc/boot/xz

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __XZ_CONFIG_H__
   3#define __XZ_CONFIG_H__
   4
   5/*
   6 * most of this is copied from lib/xz/xz_private.h, we can't use their defines
   7 * since the boot wrapper is not built in the same environment as the rest of
   8 * the kernel.
   9 */
  10
  11#include "types.h"
  12#include "swab.h"
  13
  14static inline uint32_t swab32p(void *p)
  15{
  16        uint32_t *q = p;
  17
  18        return swab32(*q);
  19}
  20
  21#ifdef __LITTLE_ENDIAN__
  22#define get_le32(p) (*((uint32_t *) (p)))
  23#else
  24#define get_le32(p) swab32p(p)
  25#endif
  26
  27#define memeq(a, b, size) (memcmp(a, b, size) == 0)
  28#define memzero(buf, size) memset(buf, 0, size)
  29
  30/* prevent the inclusion of the xz-preboot MM headers */
  31#define DECOMPR_MM_H
  32#define memmove memmove
  33#define XZ_EXTERN static
  34
  35/* xz.h needs to be included directly since we need enum xz_mode */
  36#include "../../../include/linux/xz.h"
  37
  38#undef XZ_EXTERN
  39
  40#endif
  41