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Kajol Jain ebe1a014d7 powerpc/perf/hv-gpci: Fix starting index value 
[ Upstream commit 0f9866f7e85765bbda86666df56c92f377c3bc10 ]

Commit 9e9f601084 ("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: 9e9f601084 ("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>
2020-10-29 09:57:51 +01:00
arch powerpc/perf/hv-gpci: Fix starting index value 2020-10-29 09:57:51 +01:00
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drivers RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces 2020-10-29 09:57:51 +01:00
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include overflow: Include header file with SIZE_MAX declaration 2020-10-29 09:57:51 +01:00
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kernel kdb: Fix pager search for multi-line strings 2020-10-29 09:57:51 +01:00
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README 

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