Function msi_affinity_init

components/drivers/pci/msi/msi.c:128–177

}

static void msi_affinity_init(struct rt_pci_msi_desc *desc, int msi_index,
        rt_bitmap_t *cpumasks)
{
    int irq;
    struct rt_pic_irq *pirq;
    struct rt_pci_device *pdev = desc->pdev;
    struct rt_pic *msi_pic = pdev->msi_pic;

    irq = desc->irq + desc->is_msix ? 0 : msi_index;
    pirq = rt_pic_find_pirq(msi_pic, irq);

    /* Save affinity */
    if (desc->is_msix)
    {
        desc->affinity = pirq->affinity;
    }
    else
    {
        desc->affinities[msi_index] = pirq->affinity;
    }

    if ((void *)cpumasks > (void *)msi_affinity_default &&
        (void *)cpumasks < (void *)msi_affinity_default + sizeof(msi_affinity_default))
    {
        rt_uint64_t data_address;

        /* Get MSI/MSI-X write data adddress */
        data_address = desc->msg.address_hi;
        data_address <<= 32;
        data_address |= desc->msg.address_lo;

        /* Prepare affinity */
        cpumasks = pirq->affinity;

        rt_numa_memory_affinity(data_address, cpumasks);
    }
    else if (rt_bitmap_next_set_bit(cpumasks, 0, RT_CPUS_NR) >= RT_CPUS_NR)
    {
        /* No affinity info found, give up */
        return;
    }

    if (!rt_pic_irq_set_affinity(irq, cpumasks))
    {
        if (msi_pic->ops->irq_write_msi_msg)
        {
            msi_pic->ops->irq_write_msi_msg(pirq, &desc->msg);
        }
    }
}

void rt_pci_msi_shutdown(struct rt_pci_device *pdev)
{