Re: [PATCH v2 1/3] perf/dwc_pcie: Add support for Picoheart vendor devices
From: Yicong Yang
Date: Tue Jun 30 2026 - 13:09:55 EST
On 6/30/26 11:35 AM, Shuai Xue wrote:
>
>
> On 6/29/26 5:27 PM, Yicong Yang wrote:
>> Add PCI_VENDOR_ID_PICOHEART in pci_ids.h. Update the DWC PCIe
>> vendor table with Picoheart PCIe vendorid to enable the PCIe
>> PMU support.
>>
>> Signed-off-by: Yicong Yang <yang.yicong@xxxxxxxxxxxxx>
>> ---
>> include/linux/pci_ids.h | 2 ++
>> include/linux/pcie-dwc.h | 2 ++
>> 2 files changed, 4 insertions(+)
>>
>> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
>> index 1c9d40e09107..2c17239aacea 100644
>> --- a/include/linux/pci_ids.h
>> +++ b/include/linux/pci_ids.h
>> @@ -2640,6 +2640,8 @@
>> #define PCI_VENDOR_ID_SUNIX 0x1fd4
>> #define PCI_DEVICE_ID_SUNIX_1999 0x1999
>> +#define PCI_VENDOR_ID_PICOHEART 0x20fa
>> +
>> #define PCI_VENDOR_ID_HINT 0x3388
>> #define PCI_DEVICE_ID_HINT_VXPROII_IDE 0x8013
>> diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h
>> index 8ff778e7aec0..b0ccb2ad74db 100644
>> --- a/include/linux/pcie-dwc.h
>> +++ b/include/linux/pcie-dwc.h
>> @@ -32,6 +32,8 @@ static const struct dwc_pcie_vsec_id dwc_pcie_rasdes_vsec_ids[] = {
>> .vsec_id = 0x02, .vsec_rev = 0x4 },
>> { .vendor_id = PCI_VENDOR_ID_SAMSUNG,
>> .vsec_id = 0x02, .vsec_rev = 0x4 },
>> + { .vendor_id = PCI_VENDOR_ID_PICOHEART,
>> + .vsec_id = 0x02, .vsec_rev = 0x4 },
>> {}
>> };
>>
>
> Hi Yicong,
>
> The pci_ids.h part looks good to me. Minor, the new entry in
> pcie-dwc.h breaks the alphabetical ordering of the table
>
> Could you please move the PICOHEART entry between AMPERE and QCOM to
> keep the list sorted alphabetically?
sure, will do. sorry for my careless ignore.
>
> With that fixed,
>
> Reviewed-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>
>
thanks.