diff options
author | Kajol Jain <kjain@linux.ibm.com> | 2020-10-03 13:19:39 +0530 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-30 10:38:20 +0100 |
commit | 65d73b1f219115262578f95b2763329a8fbe3579 (patch) | |
tree | ce94ef1caefc3f1616b744184e2dd3eb029965c6 /lib/test_kasan.c | |
parent | eac7650040f6a86f45c716d4f860eb2efd40bf02 (diff) | |
download | linux-stable-65d73b1f219115262578f95b2763329a8fbe3579.tar.gz linux-stable-65d73b1f219115262578f95b2763329a8fbe3579.tar.bz2 linux-stable-65d73b1f219115262578f95b2763329a8fbe3579.zip |
powerpc/perf/hv-gpci: Fix starting index value
[ Upstream commit 0f9866f7e85765bbda86666df56c92f377c3bc10 ]
Commit 9e9f60108423f ("powerpc/perf/{hv-gpci, hv-common}: generate
requests with counters annotated") adds a framework for defining
gpci counters.
In this patch, they adds starting_index value as '0xffffffffffffffff'.
which is wrong as starting_index is of size 32 bits.
Because of this, incase we try to run hv-gpci event we get error.
In power9 machine:
command#: perf stat -e hv_gpci/system_tlbie_count_and_time_tlbie_instructions_issued/
-C 0 -I 1000
event syntax error: '..bie_count_and_time_tlbie_instructions_issued/'
\___ value too big for format, maximum is 4294967295
This patch fix this issue and changes starting_index value to '0xffffffff'
After this patch:
command#: perf stat -e hv_gpci/system_tlbie_count_and_time_tlbie_instructions_issued/ -C 0 -I 1000
1.000085786 1,024 hv_gpci/system_tlbie_count_and_time_tlbie_instructions_issued/
2.000287818 1,024 hv_gpci/system_tlbie_count_and_time_tlbie_instructions_issued/
2.439113909 17,408 hv_gpci/system_tlbie_count_and_time_tlbie_instructions_issued/
Fixes: 9e9f60108423 ("powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201003074943.338618-1-kjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib/test_kasan.c')
0 files changed, 0 insertions, 0 deletions