* 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,
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
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^ 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 _______________________________________________ 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 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 > . _______________________________________________ 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 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 >>> . > . > _______________________________________________ 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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