On Thu, Aug 8, 2024 at 1:51 PM Yong-Xuan Wang <yongxuan.w...@sifive.com> wrote:
>
> In the section "4.7 Precise effects on interrupt-pending bits"
> of the RISC-V AIA specification defines that:
>
> If the source mode is Level1 or Level0 and the interrupt domain
> is configured in MSI delivery mode (domaincfg.DM = 1):
> The pending bit is cleared whenever the rectified input value is
> low, when the interrupt is forwarded by MSI, or by a relevant
> write to an in clrip register or to clripnum.
>
> Update the riscv_aplic_set_pending() to match the spec.

Same comments at the kernel patch.
https://lore.kernel.org/kvm/caahsdy3nmwbhy9qef9luexfr0ie7wc-u0d_fhzc47pxk-mz...@mail.gmail.com/

Regards,
Anup

>
> Signed-off-by: Yong-Xuan Wang <yongxuan.w...@sifive.com>
> ---
>  hw/intc/riscv_aplic.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c
> index c1748c2d17d1..45d8b4089229 100644
> --- a/hw/intc/riscv_aplic.c
> +++ b/hw/intc/riscv_aplic.c
> @@ -247,7 +247,7 @@ static void riscv_aplic_set_pending(RISCVAPLICState 
> *aplic,
>
>      if ((sm == APLIC_SOURCECFG_SM_LEVEL_HIGH) ||
>          (sm == APLIC_SOURCECFG_SM_LEVEL_LOW)) {
> -        if (!aplic->msimode || (aplic->msimode && !pending)) {
> +        if (!aplic->msimode) {
>              return;
>          }
>          if ((aplic->state[irq] & APLIC_ISTATE_INPUT) &&
> --
> 2.17.1
>
>

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