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s390/cpum_sf: Add helper to read TOD from trailer entries
authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Thu, 12 Dec 2013 16:38:50 +0000 (17:38 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 16 Dec 2013 13:37:58 +0000 (14:37 +0100)
commit443d4beb823d4dccaaf964b59df9dd38b4d6aae7
treef11cddd99fb9c8dced567a2577c43a271d6a29actree | snapshot
parentfcc77f507333776eaa336ab4ff49c23422f53703commit | diff
s390/cpum_sf: Add helper to read TOD from trailer entries

The trailer entry contains a timestamp of the time when the sample-data-block
became full.  The timestamp specifies a TOD (time-of-day) value in either the
STCK or STCKE format.

Provide a helper function to return the TOD value depending on the setting of
time format indicator.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/include/asm/cpu_mf.h diff | blob | history
arch/s390/kernel/perf_cpum_sf.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;