AuxXxilium/linux_dsm_epyc7002
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3 Commits

Author SHA1 Message Date
Anton Blanchard
196f02bf90 powerpc: perf_event: Add alignment-faults and emulation-faults software events 
Hook up the alignment-faults and emulation-faults events for powerpc.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
 2009-10-28 16:13:03 +11:00
Anton Blanchard
eecff81d1f powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED 
perf_event wants a separate event for alignment and emulation faults,
so create another emulation event.  This will make it easy to hook in
perf_event at one spot.

We pass in regs which will be required for these events.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
 2009-10-28 16:13:03 +11:00
Geert Uytterhoeven
80947e7c99 powerpc: Keep track of emulated instructions 
If CONFIG_PPC_EMULATED_STATS is enabled, make available counters for the
various classes of emulated instructions under
/sys/kernel/debug/powerpc/emulated_instructions/ (assumed debugfs is mounted on
/sys/kernel/debug).  Optionally (controlled by
/sys/kernel/debug/powerpc/emulated_instructions/do_warn), rate-limited warnings
can be printed to the console when instructions are emulated.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 2009-05-21 15:44:26 +10:00