[PATCH] S390: Get cache information via sysconf.

[Stefan Liebler]

Hi,

this patch adds support to query cache information on s390
via sysconf() function - e.g. with _SC_LEVEL1_ICACHE_SIZE.
The attributes size, linesize and assoc can be queried
for cache level 1 - 4 via "extract cpu attribute" instruction,
which was first available with z10.

Tested on s390/s390x.

Ok to commit?

Bye
Stefan

---
2015-04-17  Stefan Liebler  <stli@linux.vnet.ibm.com>

	* sysdeps/unix/sysv/linux/s390/sysconf.c: New File.
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