Re: [PATCH] riscv: iommu: ask for ACS to be enabled

[Sunil V L]

On Wed, Sep 16, 2026 at 5:15 PM BillXiang
<xiangwencheng@xxxxxxxxxxxxxxxxxxx> wrote:
>
> Make sure ACS will be enabled during PCI probe
>
> Signed-off-by: BillXiang <xiangwencheng@xxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/acpi/riscv/rimt.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/acpi/riscv/rimt.c b/drivers/acpi/riscv/rimt.c
> index e4538fa6c2c8..30d2d0211d5e 100644
> --- a/drivers/acpi/riscv/rimt.c
> +++ b/drivers/acpi/riscv/rimt.c
> @@ -525,4 +525,5 @@ void __init riscv_acpi_rimt_init(void)
>
>                 return;
>         }
> +       pci_request_acs();
>  }
>
There is already a patch in the mailing list for this.

https://lkml.org/lkml/2026/9/3/1930

Thanks,
Sunil