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Message-ID: <befb6acd-86be-4255-af96-38865affc56c@linux.intel.com>
Date: Tue, 19 Dec 2023 09:15:27 -0500
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Subject: Re: [PATCH V3 0/7] Clean up perf mem
To: kajoljain <kjain@linux.ibm.com>, acme@kernel.org, irogers@google.com,
 peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org,
 jolsa@kernel.org, adrian.hunter@intel.com, john.g.garry@oracle.com,
 will@kernel.org, james.clark@arm.com, mike.leach@linaro.org,
 leo.yan@linaro.org, yuhaixin.yhx@linux.alibaba.com,
 renyu.zj@linux.alibaba.com, tmricht@linux.ibm.com, ravi.bangoria@amd.com,
 atrajeev@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
 linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org
References: <20231213195154.1085945-1-kan.liang@linux.intel.com>
 <a0abfee5-4dcd-3eb5-82fe-1a0dcdade038@linux.ibm.com>
Content-Language: en-US
From: "Liang, Kan" <kan.liang@linux.intel.com>
In-Reply-To: <a0abfee5-4dcd-3eb5-82fe-1a0dcdade038@linux.ibm.com>
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On 2023-12-19 4:26 a.m., kajoljain wrote:
> Hi,
>   I was trying to test this patchset on powerpc.
> 
> After applying it on top of acme's perf-tools-next branch, I am getting
> below error:
> 
>   INSTALL libsubcmd_headers
>   INSTALL libperf_headers
>   INSTALL libsymbol_headers
>   INSTALL libapi_headers
>   INSTALL libbpf_headers
>   CC      arch/powerpc/util/mem-events.o
> In file included from arch/powerpc/util/mem-events.c:3:
> arch/powerpc/util/mem-events.h:5:52: error: ‘PERF_MEM_EVENTS__MAX’
> undeclared here (not in a function)
>     5 | extern struct perf_mem_event
> perf_mem_events_power[PERF_MEM_EVENTS__MAX];
>       |
> ^~~~~~~~~~~~~~~~~~~~
> make[6]: *** [/home/kajol/linux/tools/build/Makefile.build:105:
> arch/powerpc/util/mem-events.o] Error 1
> make[5]: *** [/home/kajol/linux/tools/build/Makefile.build:158: util]
> Error 2
> make[4]: *** [/home/kajol/linux/tools/build/Makefile.build:158: powerpc]
> Error 2
> make[3]: *** [/home/kajol/linux/tools/build/Makefile.build:158: arch]
> Error 2
> make[3]: *** Waiting for unfinished jobs....
> make[2]: *** [Makefile.perf:693: perf-in.o] Error 2
> make[1]: *** [Makefile.perf:251: sub-make] Error 2
> make: *** [Makefile:70: all] Error 2
> 
> It seems some headerfiles are missing from arch/powerpc/util/mem-
> events.c
> 

Leo updated the headerfiles for ARM. https://termbin.com/0dkn

I guess powerpc has to do the same thing. Could you please try the below
patch?

diff --git a/tools/perf/arch/powerpc/util/mem-events.c
b/tools/perf/arch/powerpc/util/mem-events.c
index 72a6ac2b52f5..765d4a054b0a 100644
--- a/tools/perf/arch/powerpc/util/mem-events.c
+++ b/tools/perf/arch/powerpc/util/mem-events.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "map_symbol.h"
+#include "util/map_symbol.h"
+#include "util/mem-events.h"
 #include "mem-events.h"

 #define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat
= l, .aux_event = a }

Thanks,
Kan

> Thanks,
> Kajol Jain
> 
> On 12/14/23 01:21, kan.liang@linux.intel.com wrote:
>> From: Kan Liang <kan.liang@linux.intel.com>
>>
>> Changes since V2:
>> - Fix the Arm64 building error (Leo)
>> - Add two new patches to clean up perf_mem_events__record_args()
>>   and perf_pmus__num_mem_pmus() (Leo)
>>
>> Changes since V1:
>> - Fix strcmp of PMU name checking (Ravi)
>> - Fix "/," typo (Ian)
>> - Rename several functions with perf_pmu__mem_events prefix. (Ian)
>> - Fold the header removal patch into the patch where the cleanups made.
>>   (Arnaldo)
>> - Add reviewed-by and tested-by from Ian and Ravi
>>
>> As discussed in the below thread, the patch set is to clean up perf mem.
>> https://lore.kernel.org/lkml/afefab15-cffc-4345-9cf4-c6a4128d4d9c@linux.intel.com/
>>
>> Introduce generic functions perf_mem_events__ptr(),
>> perf_mem_events__name() ,and is_mem_loads_aux_event() to replace the
>> ARCH specific ones.
>> Simplify the perf_mem_event__supported().
>>
>> Only keeps the ARCH-specific perf_mem_events array in the corresponding
>> mem-events.c for each ARCH.
>>
>> There is no functional change.
>>
>> The patch set touches almost all the ARCHs, Intel, AMD, ARM, Power and
>> etc. But I can only test it on two Intel platforms.
>> Please give it try, if you have machines with other ARCHs.
>>
>> Here are the test results:
>> Intel hybrid machine:
>>
>> $perf mem record -e list
>> ldlat-loads  : available
>> ldlat-stores : available
>>
>> $perf mem record -e ldlat-loads -v --ldlat 50
>> calling: record -e cpu_atom/mem-loads,ldlat=50/P -e cpu_core/mem-loads,ldlat=50/P
>>
>> $perf mem record -v
>> calling: record -e cpu_atom/mem-loads,ldlat=30/P -e cpu_atom/mem-stores/P -e cpu_core/mem-loads,ldlat=30/P -e cpu_core/mem-stores/P
>>
>> $perf mem record -t store -v
>> calling: record -e cpu_atom/mem-stores/P -e cpu_core/mem-stores/P
>>
>>
>> Intel SPR:
>> $perf mem record -e list
>> ldlat-loads  : available
>> ldlat-stores : available
>>
>> $perf mem record -e ldlat-loads -v --ldlat 50
>> calling: record -e {cpu/mem-loads-aux/,cpu/mem-loads,ldlat=50/}:P
>>
>> $perf mem record -v
>> calling: record -e {cpu/mem-loads-aux/,cpu/mem-loads,ldlat=30/}:P -e cpu/mem-stores/P
>>
>> $perf mem record -t store -v
>> calling: record -e cpu/mem-stores/P
>>
>> Kan Liang (7):
>>   perf mem: Add mem_events into the supported perf_pmu
>>   perf mem: Clean up perf_mem_events__ptr()
>>   perf mem: Clean up perf_mem_events__name()
>>   perf mem: Clean up perf_mem_event__supported()
>>   perf mem: Clean up is_mem_loads_aux_event()
>>   perf mem: Clean up perf_mem_events__record_args()
>>   perf mem: Clean up perf_pmus__num_mem_pmus()
>>
>>  tools/perf/arch/arm/util/pmu.c            |   3 +
>>  tools/perf/arch/arm64/util/mem-events.c   |  39 +---
>>  tools/perf/arch/arm64/util/mem-events.h   |   7 +
>>  tools/perf/arch/powerpc/util/mem-events.c |  13 +-
>>  tools/perf/arch/powerpc/util/mem-events.h |   7 +
>>  tools/perf/arch/powerpc/util/pmu.c        |  11 ++
>>  tools/perf/arch/s390/util/pmu.c           |   3 +
>>  tools/perf/arch/x86/util/mem-events.c     |  99 ++--------
>>  tools/perf/arch/x86/util/mem-events.h     |  10 +
>>  tools/perf/arch/x86/util/pmu.c            |  19 +-
>>  tools/perf/builtin-c2c.c                  |  45 ++---
>>  tools/perf/builtin-mem.c                  |  48 ++---
>>  tools/perf/util/mem-events.c              | 217 +++++++++++++---------
>>  tools/perf/util/mem-events.h              |  19 +-
>>  tools/perf/util/pmu.c                     |   4 +-
>>  tools/perf/util/pmu.h                     |   7 +
>>  tools/perf/util/pmus.c                    |   6 -
>>  tools/perf/util/pmus.h                    |   1 -
>>  18 files changed, 278 insertions(+), 280 deletions(-)
>>  create mode 100644 tools/perf/arch/arm64/util/mem-events.h
>>  create mode 100644 tools/perf/arch/powerpc/util/mem-events.h
>>  create mode 100644 tools/perf/arch/powerpc/util/pmu.c
>>  create mode 100644 tools/perf/arch/x86/util/mem-events.h
>>
>