* [PATCH] perf: arm-spe: Fix check error when synthesizing events
@ 2020-07-24 7:26 Wei Li
2020-07-24 8:32 ` Leo Yan
0 siblings, 1 reply; 4+ messages in thread
From: Wei Li @ 2020-07-24 7:26 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
Jiri Olsa, Namhyung Kim, James Clark, Mathieu Poirier, Leo Yan
Cc: linux-kernel, Peter Zijlstra, Ingo Molnar, guohanjun
In arm_spe_read_record(), when we are processing an events packet,
'decoder->packet.index' is the length of payload, which has been
transformed in payloadlen(). So correct the check of 'idx'.
Signed-off-by: Wei Li <liwei391@huawei.com>
---
tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
index 302a14d0aca9..93e063f22be5 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -182,15 +182,15 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
if (payload & BIT(EV_TLB_ACCESS))
decoder->record.type |= ARM_SPE_TLB_ACCESS;
- if ((idx == 1 || idx == 2 || idx == 3) &&
+ if ((idx == 2 || idx == 4 || idx == 8) &&
(payload & BIT(EV_LLC_MISS)))
decoder->record.type |= ARM_SPE_LLC_MISS;
- if ((idx == 1 || idx == 2 || idx == 3) &&
+ if ((idx == 2 || idx == 4 || idx == 8) &&
(payload & BIT(EV_LLC_ACCESS)))
decoder->record.type |= ARM_SPE_LLC_ACCESS;
- if ((idx == 1 || idx == 2 || idx == 3) &&
+ if ((idx == 2 || idx == 4 || idx == 8) &&
(payload & BIT(EV_REMOTE_ACCESS)))
decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
--
2.17.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] perf: arm-spe: Fix check error when synthesizing events
2020-07-24 7:26 [PATCH] perf: arm-spe: Fix check error when synthesizing events Wei Li
@ 2020-07-24 8:32 ` Leo Yan
2020-08-18 3:45 ` liwei (GF)
2020-08-20 12:28 ` Arnaldo Carvalho de Melo
0 siblings, 2 replies; 4+ messages in thread
From: Leo Yan @ 2020-07-24 8:32 UTC (permalink / raw)
To: Wei Li
Cc: Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
Jiri Olsa, Namhyung Kim, James Clark, Mathieu Poirier,
linux-kernel, Peter Zijlstra, Ingo Molnar, guohanjun
Hi Wei,
On Fri, Jul 24, 2020 at 03:26:28PM +0800, Wei Li wrote:
> In arm_spe_read_record(), when we are processing an events packet,
> 'decoder->packet.index' is the length of payload, which has been
> transformed in payloadlen(). So correct the check of 'idx'.
>
> Signed-off-by: Wei Li <liwei391@huawei.com>
Good catch. I checked the ARMv8 ARM and the function payloadlen(),
can confirm the fixing is correct.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
> ---
> tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> index 302a14d0aca9..93e063f22be5 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> @@ -182,15 +182,15 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
> if (payload & BIT(EV_TLB_ACCESS))
> decoder->record.type |= ARM_SPE_TLB_ACCESS;
>
> - if ((idx == 1 || idx == 2 || idx == 3) &&
> + if ((idx == 2 || idx == 4 || idx == 8) &&
> (payload & BIT(EV_LLC_MISS)))
> decoder->record.type |= ARM_SPE_LLC_MISS;
>
> - if ((idx == 1 || idx == 2 || idx == 3) &&
> + if ((idx == 2 || idx == 4 || idx == 8) &&
> (payload & BIT(EV_LLC_ACCESS)))
> decoder->record.type |= ARM_SPE_LLC_ACCESS;
>
> - if ((idx == 1 || idx == 2 || idx == 3) &&
> + if ((idx == 2 || idx == 4 || idx == 8) &&
> (payload & BIT(EV_REMOTE_ACCESS)))
> decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
>
> --
> 2.17.1
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] perf: arm-spe: Fix check error when synthesizing events
2020-07-24 8:32 ` Leo Yan
@ 2020-08-18 3:45 ` liwei (GF)
2020-08-20 12:28 ` Arnaldo Carvalho de Melo
1 sibling, 0 replies; 4+ messages in thread
From: liwei (GF) @ 2020-08-18 3:45 UTC (permalink / raw)
To: Leo Yan
Cc: Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
Jiri Olsa, Namhyung Kim, James Clark, Mathieu Poirier,
linux-kernel, Peter Zijlstra, Ingo Molnar, guohanjun
Ping...
On 2020/7/24 16:32, Leo Yan wrote:
> Hi Wei,
>
> On Fri, Jul 24, 2020 at 03:26:28PM +0800, Wei Li wrote:
>> In arm_spe_read_record(), when we are processing an events packet,
>> 'decoder->packet.index' is the length of payload, which has been
>> transformed in payloadlen(). So correct the check of 'idx'.
>>
>> Signed-off-by: Wei Li <liwei391@huawei.com>
>
> Good catch. I checked the ARMv8 ARM and the function payloadlen(),
> can confirm the fixing is correct.
>
> Reviewed-by: Leo Yan <leo.yan@linaro.org>
>
>> ---
>> tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
>> index 302a14d0aca9..93e063f22be5 100644
>> --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
>> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
>> @@ -182,15 +182,15 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
>> if (payload & BIT(EV_TLB_ACCESS))
>> decoder->record.type |= ARM_SPE_TLB_ACCESS;
>>
>> - if ((idx == 1 || idx == 2 || idx == 3) &&
>> + if ((idx == 2 || idx == 4 || idx == 8) &&
>> (payload & BIT(EV_LLC_MISS)))
>> decoder->record.type |= ARM_SPE_LLC_MISS;
>>
>> - if ((idx == 1 || idx == 2 || idx == 3) &&
>> + if ((idx == 2 || idx == 4 || idx == 8) &&
>> (payload & BIT(EV_LLC_ACCESS)))
>> decoder->record.type |= ARM_SPE_LLC_ACCESS;
>>
>> - if ((idx == 1 || idx == 2 || idx == 3) &&
>> + if ((idx == 2 || idx == 4 || idx == 8) &&
>> (payload & BIT(EV_REMOTE_ACCESS)))
>> decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
>>
>> --
>> 2.17.1
>>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] perf: arm-spe: Fix check error when synthesizing events
2020-07-24 8:32 ` Leo Yan
2020-08-18 3:45 ` liwei (GF)
@ 2020-08-20 12:28 ` Arnaldo Carvalho de Melo
1 sibling, 0 replies; 4+ messages in thread
From: Arnaldo Carvalho de Melo @ 2020-08-20 12:28 UTC (permalink / raw)
To: Leo Yan
Cc: Wei Li, Mark Rutland, Alexander Shishkin, Jiri Olsa,
Namhyung Kim, James Clark, Mathieu Poirier, linux-kernel,
Peter Zijlstra, Ingo Molnar, guohanjun
Em Fri, Jul 24, 2020 at 04:32:18PM +0800, Leo Yan escreveu:
> Hi Wei,
>
> On Fri, Jul 24, 2020 at 03:26:28PM +0800, Wei Li wrote:
> > In arm_spe_read_record(), when we are processing an events packet,
> > 'decoder->packet.index' is the length of payload, which has been
> > transformed in payloadlen(). So correct the check of 'idx'.
> >
> > Signed-off-by: Wei Li <liwei391@huawei.com>
>
> Good catch. I checked the ARMv8 ARM and the function payloadlen(),
> can confirm the fixing is correct.
>
> Reviewed-by: Leo Yan <leo.yan@linaro.org>
Thanks, applied.
- Arnaldo
> > ---
> > tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 6 +++---
> > 1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> > index 302a14d0aca9..93e063f22be5 100644
> > --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> > +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
> > @@ -182,15 +182,15 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
> > if (payload & BIT(EV_TLB_ACCESS))
> > decoder->record.type |= ARM_SPE_TLB_ACCESS;
> >
> > - if ((idx == 1 || idx == 2 || idx == 3) &&
> > + if ((idx == 2 || idx == 4 || idx == 8) &&
> > (payload & BIT(EV_LLC_MISS)))
> > decoder->record.type |= ARM_SPE_LLC_MISS;
> >
> > - if ((idx == 1 || idx == 2 || idx == 3) &&
> > + if ((idx == 2 || idx == 4 || idx == 8) &&
> > (payload & BIT(EV_LLC_ACCESS)))
> > decoder->record.type |= ARM_SPE_LLC_ACCESS;
> >
> > - if ((idx == 1 || idx == 2 || idx == 3) &&
> > + if ((idx == 2 || idx == 4 || idx == 8) &&
> > (payload & BIT(EV_REMOTE_ACCESS)))
> > decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
> >
> > --
> > 2.17.1
> >
--
- Arnaldo
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-07-24 7:26 [PATCH] perf: arm-spe: Fix check error when synthesizing events Wei Li
2020-07-24 8:32 ` Leo Yan
2020-08-18 3:45 ` liwei (GF)
2020-08-20 12:28 ` Arnaldo Carvalho de Melo
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