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Remove cavium/zip as it is obsolete and stands in the way of
acomp API work. If this is ever resurrected, please turn it
into an acomp driver.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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After issuing a request an endless loop was used to read the
completion state from memory which is asynchronously updated
by the ZIP coprocessor.
Add an upper bound to the retry attempts to prevent a CPU getting stuck
forever in case of an error. Additionally, add a read memory barrier
and a small delay between the reading attempts.
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Reviewed-by: Robert Richter <rrichter@cavium.com>
Cc: stable <stable@vger.kernel.org> # 4.14
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add a driver for the ZIP engine found on Cavium ThunderX SOCs.
The ZIP engine supports hardware accelerated compression and
decompression. It includes 2 independent ZIP cores and supports:
- DEFLATE compression and decompression (RFC 1951)
- LZS compression and decompression (RFC 2395 and ANSI X3.241-1994)
- ADLER32 and CRC32 checksums for ZLIB (RFC 1950) and GZIP (RFC 1952)
The ZIP engine is presented as a PCI device. It supports DMA and
scatter-gather.
Signed-off-by: Mahipal Challa <Mahipal.Challa@cavium.com>
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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