linux/tools
Desnes A. Nunes do Rosario 3337bf41e0 selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
An extra count on ebb_state.stats.pmc_count[PMC_INDEX(pmc)] is being per-
formed when count_pmc() is used to reset PMCs on a few selftests. This
extra pmc_count can occasionally invalidate results, such as the ones from
cycles_test shown hereafter. The ebb_check_count() failed with an above
the upper limit error due to the extra value on ebb_state.stats.pmc_count.

Furthermore, this extra count is also indicated by extra PMC1 trace_log on
the output of the cycle test (as well as on pmc56_overflow_test):

==========
   ...
   [21]: counter = 8
   [22]: register SPRN_MMCR0 = 0x0000000080000080
   [23]: register SPRN_PMC1  = 0x0000000080000004
   [24]: counter = 9
   [25]: register SPRN_MMCR0 = 0x0000000080000080
   [26]: register SPRN_PMC1  = 0x0000000080000004
   [27]: counter = 10
   [28]: register SPRN_MMCR0 = 0x0000000080000080
   [29]: register SPRN_PMC1  = 0x0000000080000004
>> [30]: register SPRN_PMC1  = 0x000000004000051e
PMC1 count (0x280000546) above upper limit 0x2800003e8 (+0x15e)
[FAIL] Test FAILED on line 52
failure: cycles
==========

Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.ibm.com>
Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200626164737.21943-1-desnesn@linux.ibm.com
2020-07-08 22:09:31 +10:00
..
accounting SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
arch tools arch x86: Sync the msr-index.h copy with the kernel sources 2020-06-17 13:21:26 -03:00
bootconfig tools/bootconfig: Add testcase for show-command and quotes test 2020-06-16 21:21:03 -04:00
bpf tools/bpftool: Fix skeleton codegen 2020-06-12 15:25:04 -07:00
build perf build: Remove libaudit from the default feature checks 2020-05-29 16:51:13 -03:00
cgroup Merge branch 'block-5.7' into for-5.8/block 2020-05-09 16:13:58 -06:00
debugging
edid tools/edid: Move EDID data sets from Documentation/ 2020-02-19 04:10:32 -07:00
firewire
firmware
gpio tools: gpio: add bias flags to lsgpio 2020-05-05 18:27:09 +02:00
hv
iio .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
include tools headers UAPI: Sync linux/fs.h with the kernel sources 2020-06-17 13:23:02 -03:00
io_uring
kvm/kvm_stat tools/kvm_stat: add sample systemd unit file 2020-04-21 09:13:12 -04:00
laptop change email address for Pali Rohár 2020-04-10 15:36:22 -07:00
leds .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
lib tools lib traceevent: Add handler for __builtin_expect() 2020-06-18 10:22:54 -03:00
memory-model .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
nfsd
objtool Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
pci tools: PCI: Add 'e' to clear IRQ 2020-04-02 17:57:10 +01:00
pcmcia .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
perf perf build: Fix error message when asking for -fsanitize=address without required libraries 2020-06-18 10:34:31 -03:00
power Merge branch 'acpica' 2020-06-10 17:27:28 +02:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 18:58:11 -07:00
spi spi: spidev_test: Add support for Octal mode data transfers 2020-04-16 13:54:45 +01:00
testing selftests/powerpc: Purge extra count_pmc() calls of ebb selftests 2020-07-08 22:09:31 +10:00
thermal/tmon - Convert tsens configuration DT binding to yaml (Rajeshwari) 2020-04-07 20:00:16 -07:00
time
usb .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
virtio tools/virtio: make asm/barrier.h self contained 2020-04-17 06:05:29 -04:00
vm tools/vm/page_owner_sort.c: filter out unneeded line 2020-06-03 20:09:49 -07:00
wmi
Makefile