Commit graph

12 commits

Author SHA1 Message Date
Patrick Steuer
bc4e831ccd s390x assembly pack: extend s390x capability vector.
Extend the s390x capability vector to store the longer facility list
available from z13 onwards. The bits indicating the vector extensions
are set to zero, if the kernel does not enable the vector facility.

Also add capability bits returned by the crypto instructions' query
functions.

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4542)
2017-10-30 14:31:32 +01:00
Patrick Steuer
af1d638730 s390x assembly pack: remove capability double-checking.
An instruction's QUERY function is executed at initialization, iff the required
MSA level is installed. Therefore, it is sufficient to check the bits returned
by the QUERY functions. The MSA level does not have to be checked at every
function call.
crypto/aes/asm/aes-s390x.pl: The AES key schedule must be computed if the
required KM or KMC function codes are not available. Formally, the availability
of a KMC function code does not imply the availability of the corresponding KM
function code.

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4501)
2017-10-17 21:55:33 +02:00
David Benjamin
609b0852e4 Remove trailing whitespace from some files.
The prevailing style seems to not have trailing whitespace, but a few
lines do. This is mostly in the perlasm files, but a few C files got
them after the reformat. This is the result of:

  find . -name '*.pl' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.c' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.h' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'

Then bn_prime.h was excluded since this is a generated file.

Note mkerr.pl has some changes in a heredoc for some help output, but
other lines there lack trailing whitespace too.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-10-10 23:36:21 +01:00
Rich Salz
6aa36e8e5a Add OpenSSL copyright to .pl files
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-21 08:23:39 -04:00
Andy Polyakov
670ad0fbf6 s390x assembly pack: cache capability query results.
IBM argues that in certain scenarios capability query is really
expensive. At the same time it's asserted that query results can
be safely cached, because disabling CPACF is incompatible with
reboot-free operation.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-04-25 11:53:45 +02:00
Richard Levitte
a5aa63a456 Fix some assembler generating scripts for better unification
Some of these scripts would recognise an output parameter if it looks
like a file path.  That works both in both the classic and new build
schemes.  Some fo these scripts would only recognise it if it's a
basename (i.e. no directory component).  Those need to be corrected,
as the output parameter in the new build scheme is more likely to
contain a directory component than not.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-11 00:54:31 +01:00
Andy Polyakov
d162584b11 modes/asm/ghash-s390x.pl: +15% performance improvement on z10. 2014-02-02 00:09:17 +01:00
Andy Polyakov
26e6bac143 ghash-s390x.pl: fix typo [that can induce SEGV in 31-bit build]. 2012-04-12 06:44:34 +00:00
Andy Polyakov
0ab8fd58e1 s390x assembler pack: tune-up and support for new z196 hardware. 2011-03-04 13:09:16 +00:00
Andy Polyakov
e822c756b6 s390x assembler pack: adapt for -m31 build, see commentary in Configure
for more details.
2010-11-29 20:52:43 +00:00
Andy Polyakov
8986e37249 ghash-s390x.pl: reschedule instructions for better performance. 2010-09-21 11:37:00 +00:00
Andy Polyakov
7d1f55e9d9 Add ghash-s390x.pl. 2010-09-10 14:50:17 +00:00