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    Subject[Patch Part2 v6 26/27] x86, irq: Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips
    Date
    Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips, they
    will be used to share common code later.

    Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
    ---
    arch/x86/kernel/apic/msi.c | 12 ++++++++++++
    1 file changed, 12 insertions(+)

    diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
    index 15429aa112fe..f5b899514634 100644
    --- a/arch/x86/kernel/apic/msi.c
    +++ b/arch/x86/kernel/apic/msi.c
    @@ -192,6 +192,11 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
    return ret;
    }

    +static void dmar_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
    +{
    + dmar_msi_write(data->irq, msg);
    +}
    +
    static struct irq_chip dmar_msi_controller = {
    .name = "DMAR-MSI",
    .irq_unmask = dmar_msi_unmask,
    @@ -200,6 +205,7 @@ static struct irq_chip dmar_msi_controller = {
    .irq_set_affinity = dmar_msi_set_affinity,
    .irq_retrigger = irq_chip_retrigger_hierarchy,
    .irq_compose_msi_msg = irq_msi_compose_msg,
    + .irq_write_msi_msg = dmar_msi_write_msg,
    .flags = IRQCHIP_SKIP_SET_WAKE,
    };

    @@ -322,6 +328,11 @@ static int hpet_msi_set_affinity(struct irq_data *data,
    return ret;
    }

    +static void hpet_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
    +{
    + hpet_msi_write(data->handler_data, msg);
    +}
    +
    static struct irq_chip hpet_msi_controller = {
    .name = "HPET-MSI",
    .irq_unmask = hpet_msi_unmask,
    @@ -330,6 +341,7 @@ static struct irq_chip hpet_msi_controller = {
    .irq_set_affinity = hpet_msi_set_affinity,
    .irq_retrigger = irq_chip_retrigger_hierarchy,
    .irq_compose_msi_msg = irq_msi_compose_msg,
    + .irq_write_msi_msg = hpet_msi_write_msg,
    .flags = IRQCHIP_SKIP_SET_WAKE,
    };

    --
    1.7.10.4


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