github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-10 07:32:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
ad779b05b4
linux/arch/powerpc/perf
History
Michael Ellerman 09bee3bc29 powerpc/perf: Fix handling of FAB events 
commit a53b27b3ab upstream.

Commit 4df4899 "Add power8 EBB support" included a bug in the handling
of the FAB_CRESP_MATCH and FAB_TYPE_MATCH fields.

These values are pulled out of the event code using EVENT_THR_CTL_SHIFT,
however we were then or'ing that value directly into MMCR1.

This meant we were failing to set the FAB fields correctly, and also
potentially corrupting the value for PMC4SEL. Leading to no counts for
the FAB events and incorrect counts for PMC4.

The fix is simply to shift left the FAB value correctly before or'ing it
with MMCR1.

Reported-by: Sooraj Ravindran Nair <soonair3@in.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-13 16:08:31 -07:00
..
bhrb.S powerpc/perf: Add basic assembly code to read BHRB entries on POWER8 2013-04-26 16:11:11 +10:00
callchain.c powerpc/perf: Use perf_instruction_pointer in callchains 2012-07-10 19:18:46 +10:00
core-book3s.c powerpc/perf: Don't enable if we have zero events 2013-07-25 14:07:22 -07:00
core-fsl-emb.c perf: Pass last sampling period to perf_sample_data_init() 2012-05-09 15:23:12 +02:00
e500-pmu.c powerpc/perf: Add stalled-cycles events 2013-01-10 17:00:56 +11:00
Makefile powerpc/perf: Add basic assembly code to read BHRB entries on POWER8 2013-04-26 16:11:11 +10:00
mpc7450-pmu.c
power4-pmu.c powerpc/perf: Fix instruction address sampling on 970 and Power4 2012-03-28 11:33:24 +11:00
power5-pmu.c powerpc/perf: Add an explict flag indicating presence of SLOT field 2013-04-26 16:11:07 +10:00
power5+-pmu.c powerpc/perf: Add an explict flag indicating presence of SLOT field 2013-04-26 16:11:07 +10:00
power6-pmu.c
power7-pmu.c perf/POWER7: Create a sysfs format entry for Power7 events 2013-03-13 17:01:04 -03:00
power8-pmu.c powerpc/perf: Fix handling of FAB events 2013-10-13 16:08:31 -07:00
ppc970-pmu.c powerpc/perf: Fix instruction address sampling on 970 and Power4 2012-03-28 11:33:24 +11:00