[PATCH] drm/amdgpu: Disable FRU EEPROM access for SRIOV

[Alex Deucher]

On Thu, Jan 20, 2022 at 10:49 AM shaoyunl <shaoyun.liu at amd.com> wrote:
>
> VF acces the EEPROM is blocked by security policy, we might need other way
> to get SKUs info for VF
>
> Signed-off-by: shaoyunl <shaoyun.liu at amd.com>

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
> index 2a786e788627..0548e279cc9f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
> @@ -40,6 +40,12 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
>          */
>         struct atom_context *atom_ctx = adev->mode_info.atom_context;
>
> +       /* The i2c access is blocked on VF
> +        * TODO: Need other way to get the info
> +        */
> +       if (amdgpu_sriov_vf(adev)
> +               return false;
> +
>         /* VBIOS is of the format ###-DXXXYY-##. For SKU identification,
>          * we can use just the "DXXX" portion. If there were more models, we
>          * could convert the 3 characters to a hex integer and use a switch
> --
> 2.17.1
>