diff options
| author | Mikhail Zaslonko <zaslonko@linux.ibm.com> | 2020-01-30 22:16:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 10:30:40 -0800 |
| commit | 12619610006371bfc30159937d4546e731d7b297 (patch) | |
| tree | 53f1854818b009e00e1fa5983e94dca0e804cd56 /lib/zlib_inflate/inflate.h | |
| parent | 1b3e3faf29d3acb7a2243c7e1bfb34184fdc6ece (diff) | |
lib/zlib: add s390 hardware support for kernel zlib_inflate
Add decompression functions to zlib_dfltcc library. Update zlib_inflate
functions with the hooks for s390 hardware support and adjust workspace
structures with extra parameter lists required for hardware inflate
decompression.
Link: http://lkml.kernel.org/r/20200103223334.20669-4-zaslonko@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Co-developed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Chris Mason <clm@fb.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Eduard Shishkin <edward6@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/zlib_inflate/inflate.h')
| -rw-r--r-- | lib/zlib_inflate/inflate.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/zlib_inflate/inflate.h b/lib/zlib_inflate/inflate.h index 3d17b3d1b21f..f79337ddf98c 100644 --- a/lib/zlib_inflate/inflate.h +++ b/lib/zlib_inflate/inflate.h @@ -11,6 +11,8 @@ subject to change. Applications should only use zlib.h. */ +#include "inftrees.h" + /* Possible inflate modes between inflate() calls */ typedef enum { HEAD, /* i: waiting for magic header */ @@ -108,4 +110,10 @@ struct inflate_state { unsigned short work[288]; /* work area for code table building */ code codes[ENOUGH]; /* space for code tables */ }; + +/* Reverse the bytes in a 32-bit value */ +#define REVERSE(q) \ + ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ + (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) + #endif |