Messages in this thread Patch in this message | | | From | Stefan Roese <> | Subject | [PATCH v2] irqchip/armada-370-xp: Enable MSI-X support | Date | Fri, 18 Aug 2017 14:59:26 +0200 |
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Armada XP does not only support MSI, but also MSI-X. This patch sets the MSI_FLAG_PCI_MSIX flag in the interrupt controller driver which is the only change necessary to enable MSI-X support on this SoC. As the Linux PCI MSI-X infrastructure takes care of writing the data and address structures into the BAR specified by the MSI-X controller.
Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> --- v2: - Added Reviewed-by tag from Thomas - Added usual irqchip maintainers
drivers/irqchip/irq-armada-370-xp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 33982cbd8a57..b17039ed8735 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -124,7 +124,7 @@ static struct irq_chip armada_370_xp_msi_irq_chip = { static struct msi_domain_info armada_370_xp_msi_domain_info = { .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | - MSI_FLAG_MULTI_PCI_MSI), + MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX), .chip = &armada_370_xp_msi_irq_chip, }; -- 2.12.2
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