Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3d63cb53 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

irqchip/gic-v4: Enable low-level GICv4 operations 



Get the show on the road...

Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 7954907b

drivers/irqchip/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ obj-$(CONFIG_ARM_GIC_PM) += irq-gic-pm.o 
obj-$(CONFIG_ARCH_REALVIEW)		+= irq-gic-realview.o

obj-$(CONFIG_ARM_GIC_V2M)		+= irq-gic-v2m.o

obj-$(CONFIG_ARM_GIC_V3)		+= irq-gic-v3.o irq-gic-common.o

obj-$(CONFIG_ARM_GIC_V3_ITS)		+= irq-gic-v3-its.o irq-gic-v3-its-pci-msi.o irq-gic-v3-its-platform-msi.o

obj-$(CONFIG_ARM_GIC_V3_ITS)		+= irq-gic-v3-its.o irq-gic-v3-its-pci-msi.o irq-gic-v3-its-platform-msi.o irq-gic-v4.o

obj-$(CONFIG_PARTITION_PERCPU)		+= irq-partition-percpu.o

obj-$(CONFIG_HISILICON_IRQ_MBIGEN)	+= irq-mbigen.o

obj-$(CONFIG_ARM_NVIC)			+= irq-nvic.o

drivers/irqchip/irq-gic-v3-its.c

+2 −1
Original line number Diff line number Diff line
@@ -3226,7 +3226,8 @@ int __init its_init(struct fwnode_handle *handle, struct rdists *rdists, 
		has_v4 |= its->is_v4;



	if (has_v4 & rdists->has_vlpis) {

		if (its_init_vpe_domain()) {

		if (its_init_vpe_domain() ||

		    its_init_v4(parent_domain, &its_vpe_domain_ops)) {

			rdists->has_vlpis = false;

			pr_err("ITS: Disabling GICv4 support\n");

		}

drivers/irqchip/irq-gic-v4.c

+13 −0
Original line number Diff line number Diff line
@@ -210,3 +210,16 @@ int its_prop_update_vlpi(int irq, u8 config, bool inv) 


	return irq_set_vcpu_affinity(irq, &info);

}



int its_init_v4(struct irq_domain *domain, const struct irq_domain_ops *ops)

{

	if (domain) {

		pr_info("ITS: Enabling GICv4 support\n");

		gic_domain = domain;

		vpe_domain_ops = ops;

		return 0;

	}



	pr_err("ITS: No GICv4 VPE domain allocated\n");

	return -ENODEV;

}

include/linux/irqchip/arm-gic-v4.h

+2 −0
Original line number Diff line number Diff line
@@ -100,4 +100,6 @@ int its_get_vlpi(int irq, struct its_vlpi_map *map); 
int its_unmap_vlpi(int irq);

int its_prop_update_vlpi(int irq, u8 config, bool inv);



int its_init_v4(struct irq_domain *domain, const struct irq_domain_ops *ops);



#endif