linux-kernel - RE: [PATCH 1/1] perf/x86/intel/uncore: Add Broadwell-DE uncore support

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Date:	Mon, 13 Jul 2015 12:51:40 +0000
From:	"Liang, Kan" <kan.liang@...el.com>
To:	Stephane Eranian <eranian@...gle.com>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/1] perf/x86/intel/uncore: Add Broadwell-DE uncore
 support



> > +       },
> > +       { /* MC0 Channel 0 */
> > +               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb0),
> > +               .driver_data =
> UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 0),
> > +       },
> > +       { /* MC0 Channel 1 */
> > +               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb1),
> > +               .driver_data =
> UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 1),
> > +       },
> 
> Are you sure about the two PCI id for the IMCs (0x6fb0, 0x6fb1) ?
> I do not see them on my system?

Yes, the PCI id is correct. You cannot see them is because they
are hide by BIOS. I've already sent a request to BIOS team to
unhide them. I will let you know the updated BIOS version,
once I get feedback from them.
BTW, I've verified the PCI id in BDX-EP with corrected BIOS. IMCs
counter works well. EP and DE are same for iMC0CH0 and iMC0CH1.

Thanks,
Kan