Re: [PATCH 3/4] ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()

[Rafael J. Wysocki]

On Wed, May 14, 2025 at 7:57 AM Sunil V L <sunilvl@xxxxxxxxxxxxxxxx> wrote:
>
> acpi_iommu_configure_id() currently supports only IORT (ARM) and VIOT.
> Add support for RISC-V as well.
>
> Signed-off-by: Sunil V L <sunilvl@xxxxxxxxxxxxxxxx>

This is fine by me, so

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

and please route it via RISC-V, but remember about the dependency on
the new ACPICA change.

> ---
>  drivers/acpi/scan.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index fb1fe9f3b1a3..70f57d58fd61 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -11,6 +11,7 @@
>  #include <linux/kernel.h>
>  #include <linux/acpi.h>
>  #include <linux/acpi_iort.h>
> +#include <linux/acpi_rimt.h>
>  #include <linux/acpi_viot.h>
>  #include <linux/iommu.h>
>  #include <linux/signal.h>
> @@ -1628,8 +1629,12 @@ static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
>         }
>
>         err = iort_iommu_configure_id(dev, id_in);
> -       if (err && err != -EPROBE_DEFER)
> -               err = viot_iommu_configure(dev);
> +       if (err && err != -EPROBE_DEFER) {
> +               err = rimt_iommu_configure_id(dev, id_in);
> +               if (err && err != -EPROBE_DEFER)
> +                       err = viot_iommu_configure(dev);
> +       }
> +
>         mutex_unlock(&iommu_probe_device_lock);
>
>         return err;
> --
> 2.43.0
>