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Re: [PATCH v2 2/3] cpu/a9mpcore: Set number of GIC priority bits to 5
From: |
Peter Maydell |
Subject: |
Re: [PATCH v2 2/3] cpu/a9mpcore: Set number of GIC priority bits to 5 |
Date: |
Fri, 21 Feb 2020 15:30:35 +0000 |
On Fri, 21 Feb 2020 at 07:46, Sai Pavan Boddu
<address@hidden> wrote:
>
> All A9 CPUs have a GIC with 5 bits of priority.
>
> Signed-off-by: Sai Pavan Boddu <address@hidden>
> Suggested-by: Peter Maydell <address@hidden>
> ---
> hw/cpu/a9mpcore.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/hw/cpu/a9mpcore.c b/hw/cpu/a9mpcore.c
> index 1f8bc8a..b4f6a7e 100644
> --- a/hw/cpu/a9mpcore.c
> +++ b/hw/cpu/a9mpcore.c
> @@ -16,6 +16,8 @@
> #include "hw/qdev-properties.h"
> #include "hw/core/cpu.h"
>
> +#define A9_GIC_NUM_PRIORITY_BITS 5
> +
> static void a9mp_priv_set_irq(void *opaque, int irq, int level)
> {
> A9MPPrivState *s = (A9MPPrivState *)opaque;
> @@ -68,6 +70,8 @@ static void a9mp_priv_realize(DeviceState *dev, Error
> **errp)
> gicdev = DEVICE(&s->gic);
> qdev_prop_set_uint32(gicdev, "num-cpu", s->num_cpu);
> qdev_prop_set_uint32(gicdev, "num-irq", s->num_irq);
> + qdev_prop_set_uint32(gicdev, "num-priority-bits",
> + A9_GIC_NUM_PRIORITY_BITS);
>
> /* Make the GIC's TZ support match the CPUs. We assume that
> * either all the CPUs have TZ, or none do.
Reviewed-by: Peter Maydell <address@hidden>
thanks
-- PMM