Re: [PATCH] PCI: tegra: Convert to MSI domains

[Jason Gunthorpe]

On Fri, Sep 04, 2020 at 12:56:13PM +0200, Thierry Reding wrote:
> +static void tegra_msi_irq_mask(struct irq_data *d)
> +{
> +     struct tegra_msi *msi = irq_data_get_irq_chip_data(d);
> +     struct tegra_pcie *pcie = msi_to_pcie(msi);
> +     unsigned int index = d->hwirq / 32;
> +     u32 value;
> +
> +     value = afi_readl(pcie, AFI_MSI_EN_VEC(index));
> +     value &= ~BIT(d->hwirq % 32);
> +     afi_writel(pcie, value, AFI_MSI_EN_VEC(index));
> +}

Do these need a flushing write? The Mask operation should be synchronous?

Thanks,
Jason