irqchip/gic: Add support to device tree based quirks (f70fdb42) · Commits · 戴 / test

drivers/irqchip/irq-gic-common.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,18 @@ void gic_set_kvm_info(const struct gic_kvm_info *info)
		gic_kvm_info = info;
		}

		void gic_enable_of_quirks(const struct device_node *np,
		const struct gic_quirk quirks, void data)
		{
		for (; quirks->desc; quirks++) {
		if (!of_device_is_compatible(np, quirks->compatible))
		continue;
		if (quirks->init(data))
		pr_info("GIC: enabling workaround for %s\n",
		quirks->desc);
		}
		}

		void gic_enable_quirks(u32 iidr, const struct gic_quirk *quirks,
		void *data)
		{

+3 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@

		struct gic_quirk {
		const char *desc;
		const char *compatible;
		bool (init)(void data);
		u32 iidr;
		u32 mask;
		@@ -35,6 +36,8 @@ void gic_dist_config(void __iomem *base, int gic_irqs,
		void gic_cpu_config(void __iomem base, void (sync_access)(void));
		void gic_enable_quirks(u32 iidr, const struct gic_quirk *quirks,
		void *data);
		void gic_enable_of_quirks(const struct device_node *np,
		const struct gic_quirk quirks, void data);

		void gic_set_kvm_info(const struct gic_kvm_info *info);

+7 −0

Original line number	Diff line number	Diff line
		@@ -1271,6 +1271,11 @@ static void __init gic_of_setup_kvm_info(struct device_node *node)
		gic_set_kvm_info(&gic_v3_kvm_info);
		}

		static const struct gic_quirk gic_quirks[] = {
		{
		}
		};

		static int __init gic_of_init(struct device_node node, struct device_node parent)
		{
		void __iomem *dist_base;
		@@ -1318,6 +1323,8 @@ static int __init gic_of_init(struct device_node node, struct device_node pare
		if (of_property_read_u64(node, "redistributor-stride", &redist_stride))
		redist_stride = 0;

		gic_enable_of_quirks(node, gic_quirks, &gic_data);

		err = gic_init_bases(dist_base, rdist_regs, nr_redist_regions,
		redist_stride, &node->fwnode);
		if (err)