* intel_pmc_core does not initialize intel 8th gen PMC
@ 2018-02-12 9:09 kitestramuort
2018-02-13 16:21 ` Andy Shevchenko
0 siblings, 1 reply; 3+ messages in thread
From: kitestramuort @ 2018-02-12 9:09 UTC (permalink / raw)
To: linux-kernel
Hi,
don't know if this is intended. In 4.15.2 i have:
dmesg:
intel_pmc_core 0000:00:1f.2: enabling device (0000 -> 0002)
lspci:
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev
21)
Subsystem: Intel Corporation Sunrise Point-LP PMC
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: Memory at dff00000 (32-bit, non-prefetchable)
[size=16K]
Kernel driver in use: intel_pmc_core
in 4.16.0-rc1 this becomes
dmesg:
intel_pmc_core: initialized
lspci:
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev
21)
Subsystem: Intel Corporation Sunrise Point-LP PMC
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: Memory at dff00000 (32-bit, non-prefetchable)
[disabled] [size=16K]
regards
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: intel_pmc_core does not initialize intel 8th gen PMC
2018-02-12 9:09 intel_pmc_core does not initialize intel 8th gen PMC kitestramuort
@ 2018-02-13 16:21 ` Andy Shevchenko
2018-02-13 18:00 ` Srinivas Pandruvada
0 siblings, 1 reply; 3+ messages in thread
From: Andy Shevchenko @ 2018-02-13 16:21 UTC (permalink / raw)
To: kitestramuort, Rajneesh Bhardwaj, Srinivas Pandruvada
Cc: Linux Kernel Mailing List, Platform Driver
+Cc: Authors and correct ML
On Mon, Feb 12, 2018 at 11:09 AM, kitestramuort
<kitestramuort@autistici.org> wrote:
> don't know if this is intended. In 4.15.2 i have:
AFAIU the driver now binds to the hardcoded value of a PA of the
device. So, you still have driver enabled.
Srinivas, is my understanding correct?
> dmesg:
> intel_pmc_core 0000:00:1f.2: enabling device (0000 -> 0002)
>
> lspci:
> 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev
> 21)
> Subsystem: Intel Corporation Sunrise Point-LP PMC
> Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Region 0: Memory at dff00000 (32-bit, non-prefetchable)
> [size=16K]
> Kernel driver in use: intel_pmc_core
> in 4.16.0-rc1 this becomes
> dmesg:
> intel_pmc_core: initialized
>
> lspci:
> 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev
> 21)
> Subsystem: Intel Corporation Sunrise Point-LP PMC
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Region 0: Memory at dff00000 (32-bit, non-prefetchable)
> [disabled] [size=16K]
--
With Best Regards,
Andy Shevchenko
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: intel_pmc_core does not initialize intel 8th gen PMC
2018-02-13 16:21 ` Andy Shevchenko
@ 2018-02-13 18:00 ` Srinivas Pandruvada
0 siblings, 0 replies; 3+ messages in thread
From: Srinivas Pandruvada @ 2018-02-13 18:00 UTC (permalink / raw)
To: Andy Shevchenko, kitestramuort, Rajneesh Bhardwaj
Cc: Linux Kernel Mailing List, Platform Driver
On Tue, 2018-02-13 at 18:21 +0200, Andy Shevchenko wrote:
> +Cc: Authors and correct ML
>
> On Mon, Feb 12, 2018 at 11:09 AM, kitestramuort
> <kitestramuort@autistici.org> wrote:
> > don't know if this is intended. In 4.15.2 i have:
>
> AFAIU the driver now binds to the hardcoded value of a PA of the
> device. So, you still have driver enabled.
>
> Srinivas, is my understanding correct?
Yes. This doesn't bind to PCI device. But the driver is still doing
what it is supposed to do.
You should still see
/sys/kernel/debug/pmc_core/* as before.
Thanks,
Srinivas
>
> > dmesg:
> > intel_pmc_core 0000:00:1f.2: enabling device (0000 -> 0002)
> >
> > lspci:
> > 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC
> > (rev
> > 21)
> > Subsystem: Intel Corporation Sunrise Point-LP PMC
> > Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B- DisINTx-
> > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast
> > >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > Region 0: Memory at dff00000 (32-bit, non-prefetchable)
> > [size=16K]
> > Kernel driver in use: intel_pmc_core
> > in 4.16.0-rc1 this becomes
> > dmesg:
> > intel_pmc_core: initialized
> >
> > lspci:
> > 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC
> > (rev
> > 21)
> > Subsystem: Intel Corporation Sunrise Point-LP PMC
> > Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B- DisINTx-
> > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast
> > >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > Region 0: Memory at dff00000 (32-bit, non-prefetchable)
> > [disabled] [size=16K]
>
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-02-13 18:00 UTC | newest]
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2018-02-12 9:09 intel_pmc_core does not initialize intel 8th gen PMC kitestramuort
2018-02-13 16:21 ` Andy Shevchenko
2018-02-13 18:00 ` Srinivas Pandruvada
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