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SubjectRe: [PATCHv2] perf/x86/intel/uncore: add support for Haswell ULT IMC uncore

* Sonny Rao <sonnyrao@chromium.org> wrote:

> This uncore is the same as the Haswell desktop part but uses a
> different PCI ID.
>
> Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
> ---
> arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> index 3001015..ca75e70 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> @@ -1,6 +1,9 @@
> /* Nehalem/SandBridge/Haswell uncore support */
> #include "perf_event_intel_uncore.h"
>
> +/* Uncore IMC PCI Id */
> +#define PCI_DEVICE_ID_INTEL_HSW_U_IMC 0x0a04
> +
> /* SNB event control */
> #define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff
> #define SNB_UNC_CTL_UMASK_MASK 0x0000ff00
> @@ -472,6 +475,10 @@ static const struct pci_device_id hsw_uncore_pci_ids[] = {
> PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_IMC),
> .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
> },
> + { /* IMC */
> + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_U_IMC),
> + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
> + },
> { /* end: all zeroes */ },
> };
>
> @@ -502,6 +509,7 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
> IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver), /* 3rd Gen Core processor */
> IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
> IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core Processor */
> + IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core ULT Mobile Processor */
> { /* end marker */ }
> };

So now it becomes rather inconsistent:

- PCI_DEVICE_ID_INTEL_HSW_IMC is defined in include/linux/pci_ids.h
- PCI_DEVICE_ID_INTEL_HSW_U_IMC is defined in arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c

Could you please also send a patch on top of this one that moves the
other, related PCI IDs as well?

Thanks,

Ingo


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