linux.git/arch/powerpc/perf, branch v3.15

powerpc/perf/hv-24x7: Catalog version number is be64, not be32

2014-04-28T06:31:50+00:00

The catalog version number was changed from a be32 (with proceeding
32bits of padding) to a be64, update the code to treat it as a be64

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf/hv-24x7: Remove [static 4096], sparse chokes on it

2014-04-28T03:11:27+00:00

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf/hv-24x7: Use (unsigned long) not (u32) values when calling plpar_hcall_norets()

2014-04-28T03:11:26+00:00

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf/hv-gpci: Make device attr static

2014-04-28T03:11:26+00:00

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf/hv_gpci: Probe failures use pr_debug(), and padding reduced

2014-04-28T03:11:25+00:00

fixup for "powerpc/perf: Add support for the hv gpci (get performance
counter info) interface".

Makes the "not enabled" message less awful (and hidden unless
debugging).

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf/hv_24x7: Probe errors changed to pr_debug(), padding fixed

2014-04-28T03:11:25+00:00

fixup for "powerpc/perf: Add support for the hv 24x7 interface"

Makes the "not enabled" message less awful (and hides it in most cases).

Signed-off-by: Cody P Schafer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf: Fix handling of L3 events with bank == 1

2014-03-23T22:48:33+00:00

Currently we reject events which have the L3 bank == 1, such as
0x000084918F, because the cache field is non-zero.

However that is incorrect, because although the bank is non-zero, the
value we would write into MMCRC is zero, and so we can count the event.

So fix the check to ignore the bank selector when checking whether the
cache selector is non-zero.

Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf: Add kconfig option for hypervisor provided counters

2014-03-23T22:48:32+00:00

The commit adds a Kconfig option which allows the hv_gpci and hv_24x7
PMUs, added in the preceeding commits, to be built.

Signed-off-by: Cody P Schafer 
Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf: Add support for the hv 24x7 interface

2014-03-23T22:48:32+00:00

This provides a basic interface between hv_24x7 and perf. Similar to
the one provided for gpci, it lacks transaction support and does not
list any events.

Example usage via perf tool:

	perf stat -e 'hv_24x7/domain=2,offset=8,starting_index=0,lpar=0xffffffff/' -r 0 -C 0 -x ' ' sleep 0.1

Signed-off-by: Cody P Schafer 
Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf: Add support for the hv gpci (get performance counter info) interface

2014-03-23T22:48:31+00:00

This provides a basic link between perf and hv_gpci. Notably, it does
not yet support transactions and does not list any events (they can
still be manually composed).

Example usage via perf tool:

	perf stat -e 'hv_gpci/counter_info_version=3,offset=0,length=8,secondary_index=0,starting_index=0xffffffff,request=0x10/' -r 0 -C 0 -x ' ' sleep 0.1

Signed-off-by: Cody P Schafer 
Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt