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Diffstat (limited to 'lib/zlib_inflate/infutil.h')
| -rw-r--r-- | lib/zlib_inflate/infutil.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/zlib_inflate/infutil.h b/lib/zlib_inflate/infutil.h new file mode 100644 index 0000000000..784ab33b78 --- /dev/null +++ b/lib/zlib_inflate/infutil.h @@ -0,0 +1,39 @@ +/* infutil.h -- types and macros common to blocks and codes + * Copyright (C) 1995-1998 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFUTIL_H +#define _INFUTIL_H + +#include <linux/zlib.h> +#ifdef CONFIG_ZLIB_DFLTCC +#include "../zlib_dfltcc/dfltcc.h" +#include <asm/page.h> +#endif + +/* memory allocation for inflation */ + +struct inflate_workspace { + struct inflate_state inflate_state; +#ifdef CONFIG_ZLIB_DFLTCC + struct dfltcc_state dfltcc_state; + unsigned char working_window[(1 << MAX_WBITS) + PAGE_SIZE]; +#else + unsigned char working_window[(1 << MAX_WBITS)]; +#endif +}; + +#ifdef CONFIG_ZLIB_DFLTCC +/* dfltcc_state must be doubleword aligned for DFLTCC call */ +static_assert(offsetof(struct inflate_workspace, dfltcc_state) % 8 == 0); +#endif + +#define WS(strm) ((struct inflate_workspace *)(strm->workspace)) + +#endif |