Commit 319ec8b3 authored Aug 18, 2017 by Stefan Roese Committed by Marc Zyngier Aug 18, 2017

irqchip/armada-370-xp: Enable MSI-X support



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>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

parent ef954844

drivers/irqchip/irq-armada-370-xp.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -203,7 +203,7 @@ static struct irq_chip armada_370_xp_msi_irq_chip = {

	static struct msi_domain_info armada_370_xp_msi_domain_info = {		static struct msi_domain_info armada_370_xp_msi_domain_info = {
	.flags = (MSI_FLAG_USE_DEF_DOM_OPS \| MSI_FLAG_USE_DEF_CHIP_OPS \|		.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,		.chip = &armada_370_xp_msi_irq_chip,
	};		};