linux-kernel - Re: [PATCH] x86/amd_nb: add AMD family 19h model 50h PCI ids

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Date:   Thu, 20 May 2021 16:36:09 -0500
From:   Wei Huang <wei.huang2@....com>
To:     David Bartley <andareed@...il.com>, linux-kernel@...r.kernel.org
Cc:     linux-x86_64@...r.kernel.org
Subject: Re: [PATCH] x86/amd_nb: add AMD family 19h model 50h PCI ids

According to the specification, these IDs look correct to me. I also 
found them on two real machines.

Thanks,
-Wei

On 5/20/21 12:41 PM, David Bartley wrote:
> This is required to support Zen3 APUs in k10temp.
> 
> Signed-off-by: David Bartley <andareed@...il.com>
> ---
>   arch/x86/kernel/amd_nb.c | 3 +++
>   include/linux/pci_ids.h  | 1 +
>   2 files changed, 4 insertions(+)
> 
> diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
> index 09083094eb57..23dda362dc0f 100644
> --- a/arch/x86/kernel/amd_nb.c
> +++ b/arch/x86/kernel/amd_nb.c
> @@ -25,6 +25,7 @@
>   #define PCI_DEVICE_ID_AMD_17H_M60H_DF_F4 0x144c
>   #define PCI_DEVICE_ID_AMD_17H_M70H_DF_F4 0x1444
>   #define PCI_DEVICE_ID_AMD_19H_DF_F4	0x1654
> +#define PCI_DEVICE_ID_AMD_19H_M50H_DF_F4 0x166e
>   
>   /* Protect the PCI config register pairs used for SMN and DF indirect access. */
>   static DEFINE_MUTEX(smn_mutex);
> @@ -57,6 +58,7 @@ static const struct pci_device_id amd_nb_misc_ids[] = {
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_DF_F3) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_M50H_DF_F3) },
>   	{}
>   };
>   
> @@ -72,6 +74,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M60H_DF_F4) },
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F4) },
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_DF_F4) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_M50H_DF_F4) },
>   	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F4) },
>   	{}
>   };
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index 4c3fa5293d76..5356ccf1c275 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -555,6 +555,7 @@
>   #define PCI_DEVICE_ID_AMD_17H_M60H_DF_F3 0x144b
>   #define PCI_DEVICE_ID_AMD_17H_M70H_DF_F3 0x1443
>   #define PCI_DEVICE_ID_AMD_19H_DF_F3	0x1653
> +#define PCI_DEVICE_ID_AMD_19H_M50H_DF_F3 0x166d
>   #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
>   #define PCI_DEVICE_ID_AMD_LANCE		0x2000
>   #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
>