* BUG about Hisilicon PMU
@ 2021-01-11 8:25 Zhengyuan Liu
2021-01-11 9:13 ` John Garry
0 siblings, 1 reply; 6+ messages in thread
From: Zhengyuan Liu @ 2021-01-11 8:25 UTC (permalink / raw)
To: john.garry; +Cc: zhangshaokun, kong.kongxinwei, linux-arm-kernel
Hi, all
When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
initialization stage, and after binary-search with bisect I found that
this problem was introduced by commit ac4511c9364c ("drivers/perf:
hisi: Add identifier sysfs file"),
and to be more accurate it actually blocked at following position:
hisi_hha_pmu_init_data():
hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
If you guys had already know this problem, please ignore this message.
Thanks,
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG about Hisilicon PMU
2021-01-11 8:25 BUG about Hisilicon PMU Zhengyuan Liu
@ 2021-01-11 9:13 ` John Garry
2021-01-11 9:33 ` Shaokun Zhang
0 siblings, 1 reply; 6+ messages in thread
From: John Garry @ 2021-01-11 9:13 UTC (permalink / raw)
To: Zhengyuan Liu
Cc: zhangshaokun, Mark Rutland, kong.kongxinwei, Will Deacon,
linux-arm-kernel
On 11/01/2021 08:25, Zhengyuan Liu wrote:
> Hi, all
>
> When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
> initialization stage, and after binary-search with bisect I found that
> this problem was introduced by commit ac4511c9364c ("drivers/perf:
> hisi: Add identifier sysfs file"),
> and to be more accurate it actually blocked at following position:
>
> hisi_hha_pmu_init_data():
> hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
>
> If you guys had already know this problem, please ignore this message.
Do you have a dmesg? I don't see anything to block here, only crash.
Does v5.11-rc1 boot ok?
It works fine on my D06CS (which includes Kunpeng 920) with rc3:
john@debian:~$ more
/sys/bus/event_source/devices/hisi_sccl5_hha7/identifier
0x00000000
john@debian:~$ uname -a
Linux debian 5.11.0-rc3-dirty #139 SMP PREEMPT Mon Jan 11 08:42:26 GMT
2021 aarch64 GNU/Linux
john@debian:~$
@Shaokun, Do you know what could be the problem on PC?
Thanks,
John
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG about Hisilicon PMU
2021-01-11 9:13 ` John Garry
@ 2021-01-11 9:33 ` Shaokun Zhang
2021-01-11 11:38 ` Zhengyuan Liu
0 siblings, 1 reply; 6+ messages in thread
From: Shaokun Zhang @ 2021-01-11 9:33 UTC (permalink / raw)
To: John Garry, Zhengyuan Liu
Cc: Mark Rutland, kong.kongxinwei, Will Deacon, linux-arm-kernel
Hi John/Zhengyuan,
在 2021/1/11 17:13, John Garry 写道:
> On 11/01/2021 08:25, Zhengyuan Liu wrote:
>> Hi, all
>>
>> When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
>> initialization stage, and after binary-search with bisect I found that
>> this problem was introduced by commit ac4511c9364c ("drivers/perf:
>> hisi: Add identifier sysfs file"),
>> and to be more accurate it actually blocked at following position:
>>
>> hisi_hha_pmu_init_data():
>> hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
>>
>> If you guys had already know this problem, please ignore this message.
>
> Do you have a dmesg? I don't see anything to block here, only crash.
> Does v5.11-rc1 boot ok?
>
> It works fine on my D06CS (which includes Kunpeng 920) with rc3:
>
> john@debian:~$ more /sys/bus/event_source/devices/hisi_sccl5_hha7/identifier
> 0x00000000
> john@debian:~$ uname -a
> Linux debian 5.11.0-rc3-dirty #139 SMP PREEMPT Mon Jan 11 08:42:26 GMT 2021 aarch64 GNU/Linux
> john@debian:~$
>
> @Shaokun, Do you know what could be the problem on PC?
I doubt the UEFI which maybe give more HHA numbers than PC has or give the wrong
mmap address space that may cause this issue.
So please can you tell more information about the UEFI?
Shaokun,
>
> Thanks,
> John
> .
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG about Hisilicon PMU
2021-01-11 9:33 ` Shaokun Zhang
@ 2021-01-11 11:38 ` Zhengyuan Liu
2021-01-12 7:38 ` Shaokun Zhang
0 siblings, 1 reply; 6+ messages in thread
From: Zhengyuan Liu @ 2021-01-11 11:38 UTC (permalink / raw)
To: Shaokun Zhang
Cc: Mark Rutland, kong.kongxinwei, John Garry, Will Deacon, linux-arm-kernel
On Mon, Jan 11, 2021 at 5:34 PM Shaokun Zhang
<zhangshaokun@hisilicon.com> wrote:
>
> Hi John/Zhengyuan,
>
> 在 2021/1/11 17:13, John Garry 写道:
> > On 11/01/2021 08:25, Zhengyuan Liu wrote:
> >> Hi, all
> >>
> >> When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
> >> initialization stage, and after binary-search with bisect I found that
> >> this problem was introduced by commit ac4511c9364c ("drivers/perf:
> >> hisi: Add identifier sysfs file"),
> >> and to be more accurate it actually blocked at following position:
> >>
> >> hisi_hha_pmu_init_data():
> >> hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
> >>
> >> If you guys had already know this problem, please ignore this message.
> >
> > Do you have a dmesg? I don't see anything to block here, only crash.
> > Does v5.11-rc1 boot ok?
> >
V5.11-rc1 has included this patch, therefore also bad.
The dmesg does not have any error message, It only blocked which seems
the cpu doesn't work,
and I can hear the rotation rate of fans increasing rapidly.
I also built the PMU from Y to M, it has the same phenomenon when the
module is loaded.
> > It works fine on my D06CS (which includes Kunpeng 920) with rc3:
> >
> > john@debian:~$ more /sys/bus/event_source/devices/hisi_sccl5_hha7/identifier
> > 0x00000000
> > john@debian:~$ uname -a
> > Linux debian 5.11.0-rc3-dirty #139 SMP PREEMPT Mon Jan 11 08:42:26 GMT 2021 aarch64 GNU/Linux
> > john@debian:~$
> >
> > @Shaokun, Do you know what could be the problem on PC?
>
> I doubt the UEFI which maybe give more HHA numbers than PC has or give the wrong
> mmap address space that may cause this issue.
> So please can you tell more information about the UEFI?
Did you mean DSDT or Bios Information?
>
> Shaokun,
>
> >
> > Thanks,
> > John
> > .
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG about Hisilicon PMU
2021-01-11 11:38 ` Zhengyuan Liu
@ 2021-01-12 7:38 ` Shaokun Zhang
2021-01-12 7:46 ` Zhengyuan Liu
0 siblings, 1 reply; 6+ messages in thread
From: Shaokun Zhang @ 2021-01-12 7:38 UTC (permalink / raw)
To: Zhengyuan Liu
Cc: Mark Rutland, yewei28, Will Deacon, John Garry, kong.kongxinwei,
liuqi (BA),
linux-arm-kernel
Hi Zhengyuan,
Thanks for your quick reply,
在 2021/1/11 19:38, Zhengyuan Liu 写道:
> On Mon, Jan 11, 2021 at 5:34 PM Shaokun Zhang
> <zhangshaokun@hisilicon.com> wrote:
>>
>> Hi John/Zhengyuan,
>>
>> 在 2021/1/11 17:13, John Garry 写道:
>>> On 11/01/2021 08:25, Zhengyuan Liu wrote:
>>>> Hi, all
>>>>
>>>> When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
>>>> initialization stage, and after binary-search with bisect I found that
>>>> this problem was introduced by commit ac4511c9364c ("drivers/perf:
>>>> hisi: Add identifier sysfs file"),
>>>> and to be more accurate it actually blocked at following position:
>>>>
>>>> hisi_hha_pmu_init_data():
>>>> hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
>>>>
>>>> If you guys had already know this problem, please ignore this message.
>>>
>>> Do you have a dmesg? I don't see anything to block here, only crash.
>>> Does v5.11-rc1 boot ok?
>>>
>
> V5.11-rc1 has included this patch, therefore also bad.
>
> The dmesg does not have any error message, It only blocked which seems
> the cpu doesn't work,
> and I can hear the rotation rate of fans increasing rapidly.
>
> I also built the PMU from Y to M, it has the same phenomenon when the
> module is loaded.
>
>>> It works fine on my D06CS (which includes Kunpeng 920) with rc3:
>>>
>>> john@debian:~$ more /sys/bus/event_source/devices/hisi_sccl5_hha7/identifier
>>> 0x00000000
>>> john@debian:~$ uname -a
>>> Linux debian 5.11.0-rc3-dirty #139 SMP PREEMPT Mon Jan 11 08:42:26 GMT 2021 aarch64 GNU/Linux
>>> john@debian:~$
>>>
>>> @Shaokun, Do you know what could be the problem on PC?
>>
>> I doubt the UEFI which maybe give more HHA numbers than PC has or give the wrong
>> mmap address space that may cause this issue.
>> So please can you tell more information about the UEFI?
>
> Did you mean DSDT or Bios Information?
>
I have checked that there are some wrong PMU nodes enumerating in the UEFI
file and are you happy to get the new UEFI file from Xinwei and test it again?
Apologies for this mistake.
Thanks,
Shaokun
>>
>> Shaokun,
>>
>>>
>>> Thanks,
>>> John
>>> .
> .
>
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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG about Hisilicon PMU
2021-01-12 7:38 ` Shaokun Zhang
@ 2021-01-12 7:46 ` Zhengyuan Liu
0 siblings, 0 replies; 6+ messages in thread
From: Zhengyuan Liu @ 2021-01-12 7:46 UTC (permalink / raw)
To: Shaokun Zhang
Cc: Mark Rutland, yewei28, Will Deacon, John Garry, kong.kongxinwei,
liuqi (BA),
linux-arm-kernel
On Tue, Jan 12, 2021 at 3:39 PM Shaokun Zhang
<zhangshaokun@hisilicon.com> wrote:
>
> Hi Zhengyuan,
>
> Thanks for your quick reply,
>
> 在 2021/1/11 19:38, Zhengyuan Liu 写道:
> > On Mon, Jan 11, 2021 at 5:34 PM Shaokun Zhang
> > <zhangshaokun@hisilicon.com> wrote:
> >>
> >> Hi John/Zhengyuan,
> >>
> >> 在 2021/1/11 17:13, John Garry 写道:
> >>> On 11/01/2021 08:25, Zhengyuan Liu wrote:
> >>>> Hi, all
> >>>>
> >>>> When boot v5.11-rc2 on my Kunpeng 920 PC, the kernel will block at PMU
> >>>> initialization stage, and after binary-search with bisect I found that
> >>>> this problem was introduced by commit ac4511c9364c ("drivers/perf:
> >>>> hisi: Add identifier sysfs file"),
> >>>> and to be more accurate it actually blocked at following position:
> >>>>
> >>>> hisi_hha_pmu_init_data():
> >>>> hha_pmu->identifier = readl(hha_pmu->base + HHA_VERSION);
> >>>>
> >>>> If you guys had already know this problem, please ignore this message.
> >>>
> >>> Do you have a dmesg? I don't see anything to block here, only crash.
> >>> Does v5.11-rc1 boot ok?
> >>>
> >
> > V5.11-rc1 has included this patch, therefore also bad.
> >
> > The dmesg does not have any error message, It only blocked which seems
> > the cpu doesn't work,
> > and I can hear the rotation rate of fans increasing rapidly.
> >
> > I also built the PMU from Y to M, it has the same phenomenon when the
> > module is loaded.
> >
> >>> It works fine on my D06CS (which includes Kunpeng 920) with rc3:
> >>>
> >>> john@debian:~$ more /sys/bus/event_source/devices/hisi_sccl5_hha7/identifier
> >>> 0x00000000
> >>> john@debian:~$ uname -a
> >>> Linux debian 5.11.0-rc3-dirty #139 SMP PREEMPT Mon Jan 11 08:42:26 GMT 2021 aarch64 GNU/Linux
> >>> john@debian:~$
> >>>
> >>> @Shaokun, Do you know what could be the problem on PC?
> >>
> >> I doubt the UEFI which maybe give more HHA numbers than PC has or give the wrong
> >> mmap address space that may cause this issue.
> >> So please can you tell more information about the UEFI?
> >
> > Did you mean DSDT or Bios Information?
> >
>
> I have checked that there are some wrong PMU nodes enumerating in the UEFI
> file and are you happy to get the new UEFI file from Xinwei and test it again?
Yes, of course, I'll use the new UEFI to test again and do a feedback later.
Thanks,
> Apologies for this mistake.
>
> Thanks,
> Shaokun
>
> >>
> >> Shaokun,
> >>
> >>>
> >>> Thanks,
> >>> John
> >>> .
> > .
> >
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-01-12 7:48 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-11 8:25 BUG about Hisilicon PMU Zhengyuan Liu
2021-01-11 9:13 ` John Garry
2021-01-11 9:33 ` Shaokun Zhang
2021-01-11 11:38 ` Zhengyuan Liu
2021-01-12 7:38 ` Shaokun Zhang
2021-01-12 7:46 ` Zhengyuan Liu
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