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5 Commits

Author SHA1 Message Date
Madhavan Srinivasan
54d4ba7f22 selftests/powerpc/pmu: Add event_init_sampling function 
Extended event_init_opts() to include initialization of sampling
testcases. Patch adds an event_init_sampling() wrapper to initialize
event attribute fields for sampling events. This includes initializing
sample period, sample type and event type.

Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220127072012.662451-6-kjain@linux.ibm.com
 2022-03-01 23:38:13 +11:00
Athira Rajeev
f961e20f15 selftests/powerpc/pmu: Include mmap_buffer field as part of struct event 
To enable the capturing of samples as part of perf event, add a new
field "mmap_buffer" to "struct event". This field is a place-holder for
sample collection

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220127072012.662451-2-kjain@linux.ibm.com
 2022-02-28 11:25:52 +11:00
Thomas Gleixner
f50a7f3d92 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 
Based on 1 normalized pattern(s):

  licensed under gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 99 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-30 11:29:21 -07:00
Michael Ellerman
3752e453f6 selftests/powerpc: Add tests of PMU EBBs 
The Power8 Performance Monitor Unit (PMU) has a new feature called Event
Based Branches (EBB). This commit adds tests of the kernel API for using
EBBs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 2014-06-11 17:03:58 +10:00
Michael Ellerman
cb96143def selftests: Add test of PMU instruction counting on powerpc 
This commit adds a test of instruction counting using the PMU on powerpc.

Although the bulk of the code is architecture agnostic, the code needs to
run a precisely sized loop which is implemented in assembler.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 2013-08-14 14:57:10 +10:00