On Tue, Mar 11, 2025 at 04:41:55PM +0800, Hao Yao wrote:
> There was a hardware bug which need IPU6 driver to disable the ATS.
> This workaround is not needed anymore as the bug was fixed in
> hardware level.
>
> Signed-off-by: Hao Yao <hao.yao@xxxxxxxxx>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@xxxxxxxxxxxxxxx>
Regards
Stanislaw
> ---
> drivers/media/pci/intel/ipu6/ipu6.c | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/drivers/media/pci/intel/ipu6/ipu6.c b/drivers/media/pci/intel/ipu6/ipu6.c
> index 277af7cda8ee..b00d0705fefa 100644
> --- a/drivers/media/pci/intel/ipu6/ipu6.c
> +++ b/drivers/media/pci/intel/ipu6/ipu6.c
> @@ -464,11 +464,6 @@ static int ipu6_pci_config_setup(struct pci_dev *dev, u8 hw_ver)
> {
> int ret;
>
> - /* disable IPU6 PCI ATS on mtl ES2 */
> - if (is_ipu6ep_mtl(hw_ver) && boot_cpu_data.x86_stepping == 0x2 &&
> - pci_ats_supported(dev))
> - pci_disable_ats(dev);
> -
> /* No PCI msi capability for IPU6EP */
> if (is_ipu6ep(hw_ver) || is_ipu6ep_mtl(hw_ver)) {
> /* likely do nothing as msi not enabled by default */
> --
> 2.43.0
>
>
