Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
irqchip/gic-v4: Enable low-level GICv4 operations
Get the show on the road...
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
+1
-1
drivers/irqchip/Makefile
+1
-1
drivers/irqchip/Makefile
···
28
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obj-$(CONFIG_ARCH_REALVIEW) += irq-gic-realview.o
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obj-$(CONFIG_ARM_GIC_V2M) += irq-gic-v2m.o
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obj-$(CONFIG_ARM_GIC_V3) += irq-gic-v3.o irq-gic-common.o
31
-
obj-$(CONFIG_ARM_GIC_V3_ITS) += irq-gic-v3-its.o irq-gic-v3-its-pci-msi.o irq-gic-v3-its-platform-msi.o
31
+
obj-$(CONFIG_ARM_GIC_V3_ITS) += irq-gic-v3-its.o irq-gic-v3-its-pci-msi.o irq-gic-v3-its-platform-msi.o irq-gic-v4.o
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obj-$(CONFIG_PARTITION_PERCPU) += irq-partition-percpu.o
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obj-$(CONFIG_HISILICON_IRQ_MBIGEN) += irq-mbigen.o
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obj-$(CONFIG_ARM_NVIC) += irq-nvic.o
+2
-1
drivers/irqchip/irq-gic-v3-its.c
+2
-1
drivers/irqchip/irq-gic-v3-its.c
···
3226
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has_v4 |= its->is_v4;
3227
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3228
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if (has_v4 & rdists->has_vlpis) {
3229
-
if (its_init_vpe_domain()) {
3229
+
if (its_init_vpe_domain() ||
3230
+
its_init_v4(parent_domain, &its_vpe_domain_ops)) {
3230
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rdists->has_vlpis = false;
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pr_err("ITS: Disabling GICv4 support\n");
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}
+13
drivers/irqchip/irq-gic-v4.c
+13
drivers/irqchip/irq-gic-v4.c
···
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return irq_set_vcpu_affinity(irq, &info);
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}
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+
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+
int its_init_v4(struct irq_domain *domain, const struct irq_domain_ops *ops)
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+
{
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+
if (domain) {
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+
pr_info("ITS: Enabling GICv4 support\n");
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+
gic_domain = domain;
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+
vpe_domain_ops = ops;
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+
return 0;
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+
}
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+
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+
pr_err("ITS: No GICv4 VPE domain allocated\n");
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+
return -ENODEV;
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+
}