diff --git a/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt index f292917fa00d8bc3b6dce45b26d5cb8370a98289..0e9f09a6a2fe488ca11aa9be2823789f0d63baa7 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt @@ -2,7 +2,7 @@ Required properties: - compatible: Should be "atmel,-aic" - can be "at91rm9200", "sama5d3" or "sama5d4" + can be "at91rm9200", "sama5d2", "sama5d3" or "sama5d4" - interrupt-controller: Identifies the node as an interrupt controller. - interrupt-parent: For single AIC system, it is an empty property. - #interrupt-cells: The number of cells to define the interrupts. It should be 3. diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt index 4f7946ae8adcdc042992a9b4670e7ff10c065f9a..772c550d3b4bcfe23d05f48496f871ed5db5186e 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt @@ -13,9 +13,12 @@ Required properties: - reg: Base address and length of each register bank used by the external IRQ pins driven by the interrupt controller hardware module. The base addresses, length and number of required register banks varies with soctype. - +- interrupt-controller: Identifies the node as an interrupt controller. - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in - interrupts.txt in this directory + interrupts.txt in this directory. +- interrupts: Must contain a list of interrupt specifiers. For each interrupt + provided by this irqpin controller instance, there must be one entry, + referring to the corresponding parent interrupt. Optional properties: @@ -25,3 +28,35 @@ Optional properties: if different from the default 4 bits - control-parent: disable and enable interrupts on the parent interrupt controller, needed for some broken implementations +- clocks: Must contain a reference to the functional clock. This property is + mandatory if the hardware implements a controllable functional clock for + the irqpin controller instance. +- power-domains: Must contain a reference to the power domain. This property is + mandatory if the irqpin controller instance is part of a controllable power + domain. + + +Example +------- + + irqpin1: interrupt-controller@e6900004 { + compatible = "renesas,intc-irqpin-r8a7740", + "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe6900004 4>, + <0xe6900014 4>, + <0xe6900024 1>, + <0xe6900044 1>, + <0xe6900064 1>; + interrupts = <0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; + }; diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 5cc779c8e9c68085a288fe09986a455fc963c4cf..93ee70dbbdd390610520f497e5ce9d27830d1efb 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -501,8 +501,8 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) * Register SA1111 interrupt */ irq_set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING); - irq_set_handler_data(sachip->irq, sachip); - irq_set_chained_handler(sachip->irq, sa1111_irq_handler); + irq_set_chained_handler_and_data(sachip->irq, sa1111_irq_handler, + sachip); dev_info(sachip->dev, "Providing IRQ%u-%u\n", sachip->irq_base, sachip->irq_base + SA1111_IRQ_NR - 1); @@ -836,8 +836,7 @@ static void __sa1111_remove(struct sa1111 *sachip) clk_unprepare(sachip->clk); if (sachip->irq != NO_IRQ) { - irq_set_chained_handler(sachip->irq, NULL); - irq_set_handler_data(sachip->irq, NULL); + irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); release_mem_region(sachip->phys + SA1111_INTC, 512); diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c index f8cb5710d6eed09e6213a31561443081d53dbcaf..3292f2e6ed6f3fc9fd306904eaeb4551e1cd0c2e 100644 --- a/arch/arm/mach-gemini/gpio.c +++ b/arch/arm/mach-gemini/gpio.c @@ -223,8 +223,8 @@ void __init gemini_gpio_init(void) set_irq_flags(j, IRQF_VALID); } - irq_set_chained_handler(IRQ_GPIO(i), gpio_irq_handler); - irq_set_handler_data(IRQ_GPIO(i), (void *)i); + irq_set_chained_handler_and_data(IRQ_GPIO(i), gpio_irq_handler, + (void *)i); } BUG_ON(gpiochip_add(&gemini_gpio_chip)); diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index af868d258e664b5a50a4c678506bf7da7ac6dfd0..99d9a3b1bf34bedddb62e51a220d93088bab3542 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -327,8 +327,7 @@ static int neponset_probe(struct platform_device *dev) irq_set_chip(d->irq_base + NEP_IRQ_SA1111, &nochip); irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); - irq_set_handler_data(irq, d); - irq_set_chained_handler(irq, neponset_irq_handler); + irq_set_chained_handler_and_data(irq, neponset_irq_handler, d); /* * We would set IRQ_GPIO25 to be a wake-up IRQ, but unfortunately diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index 9f7446a7ac64f0ee11a4fd675d87773d3b21f8e5..e4f42c95c32058129d7814c9a4640abc14ec8fd5 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -437,14 +437,13 @@ static int mxc_gpio_probe(struct platform_device *pdev) irq_set_chained_handler(port->irq, mx2_gpio_irq_handler); } else { /* setup one handler for each entry */ - irq_set_chained_handler(port->irq, mx3_gpio_irq_handler); - irq_set_handler_data(port->irq, port); - if (port->irq_high > 0) { + irq_set_chained_handler_and_data(port->irq, + mx3_gpio_irq_handler, port); + if (port->irq_high > 0) /* setup handler for GPIO 16 to 31 */ - irq_set_chained_handler(port->irq_high, - mx3_gpio_irq_handler); - irq_set_handler_data(port->irq_high, port); - } + irq_set_chained_handler_and_data(port->irq_high, + mx3_gpio_irq_handler, + port); } err = bgpio_init(&port->bgc, &pdev->dev, 4, diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index 84cbda6acdda793b343b19ee0ca8170a50da8805..eac872748ee7008b4797225badd02a155a25b2b9 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -320,8 +320,8 @@ static int mxs_gpio_probe(struct platform_device *pdev) mxs_gpio_init_gc(port, irq_base); /* setup one handler for each entry */ - irq_set_chained_handler(port->irq, mxs_gpio_irq_handler); - irq_set_handler_data(port->irq, port); + irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler, + port); err = bgpio_init(&port->bgc, &pdev->dev, 4, port->base + PINCTRL_DIN(port), diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 1741981d53c8fc2e9565e54d10f29ecf6552a7c7..56dcc8ed98de89dcb33013858f25617167df8612 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -515,8 +515,8 @@ static int tegra_gpio_probe(struct platform_device *pdev) for (i = 0; i < tegra_gpio_bank_count; i++) { bank = &tegra_gpio_banks[i]; - irq_set_chained_handler(bank->irq, tegra_gpio_irq_handler); - irq_set_handler_data(bank->irq, bank); + irq_set_chained_handler_and_data(bank->irq, + tegra_gpio_irq_handler, bank); for (j = 0; j < 4; j++) spin_lock_init(&bank->lvl_lock[j]); diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c index 67bab5c36056128ba75837e5ea041d390a9e580b..6d2f39d36e445bda4840f06d7eb1f779081f2c22 100644 --- a/drivers/gpu/ipu-v3/ipu-common.c +++ b/drivers/gpu/ipu-v3/ipu-common.c @@ -1119,10 +1119,9 @@ static int ipu_irq_init(struct ipu_soc *ipu) ct->regs.mask = IPU_INT_CTRL(i / 32); } - irq_set_chained_handler(ipu->irq_sync, ipu_irq_handler); - irq_set_handler_data(ipu->irq_sync, ipu); - irq_set_chained_handler(ipu->irq_err, ipu_err_irq_handler); - irq_set_handler_data(ipu->irq_err, ipu); + irq_set_chained_handler_and_data(ipu->irq_sync, ipu_irq_handler, ipu); + irq_set_chained_handler_and_data(ipu->irq_err, ipu_err_irq_handler, + ipu); return 0; } @@ -1131,10 +1130,8 @@ static void ipu_irq_exit(struct ipu_soc *ipu) { int i, irq; - irq_set_chained_handler(ipu->irq_err, NULL); - irq_set_handler_data(ipu->irq_err, NULL); - irq_set_chained_handler(ipu->irq_sync, NULL); - irq_set_handler_data(ipu->irq_sync, NULL); + irq_set_chained_handler_and_data(ipu->irq_err, NULL, NULL); + irq_set_chained_handler_and_data(ipu->irq_sync, NULL, NULL); /* TODO: remove irq_domain_generic_chips */ diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 6de62a96e79c80e9d442ca07f53549cf334f8c7c..99b9a979297531e67960a75d35917e93c2223368 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -30,6 +30,7 @@ config ARM_GIC_V3_ITS config ARM_NVIC bool select IRQ_DOMAIN + select IRQ_DOMAIN_HIERARCHY select GENERIC_IRQ_CHIP config ARM_VIC diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c index 5945223b73fa2ceba647649e6c16c84fc5447d08..5c82e3bdafdf0f61f054b7ea14144346a4390002 100644 --- a/drivers/irqchip/exynos-combiner.c +++ b/drivers/irqchip/exynos-combiner.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -34,9 +35,14 @@ struct combiner_chip_data { unsigned int irq_mask; void __iomem *base; unsigned int parent_irq; +#ifdef CONFIG_PM + u32 pm_save; +#endif }; +static struct combiner_chip_data *combiner_data; static struct irq_domain *combiner_irq_domain; +static unsigned int max_nr = 20; static inline void __iomem *combiner_base(struct irq_data *data) { @@ -164,18 +170,16 @@ static int combiner_irq_domain_map(struct irq_domain *d, unsigned int irq, return 0; } -static struct irq_domain_ops combiner_irq_domain_ops = { +static const struct irq_domain_ops combiner_irq_domain_ops = { .xlate = combiner_irq_domain_xlate, .map = combiner_irq_domain_map, }; static void __init combiner_init(void __iomem *combiner_base, - struct device_node *np, - unsigned int max_nr) + struct device_node *np) { int i, irq; unsigned int nr_irq; - struct combiner_chip_data *combiner_data; nr_irq = max_nr * IRQ_IN_COMBINER; @@ -201,11 +205,59 @@ static void __init combiner_init(void __iomem *combiner_base, } } +#ifdef CONFIG_PM + +/** + * combiner_suspend - save interrupt combiner state before suspend + * + * Save the interrupt enable set register for all combiner groups since + * the state is lost when the system enters into a sleep state. + * + */ +static int combiner_suspend(void) +{ + int i; + + for (i = 0; i < max_nr; i++) + combiner_data[i].pm_save = + __raw_readl(combiner_data[i].base + COMBINER_ENABLE_SET); + + return 0; +} + +/** + * combiner_resume - restore interrupt combiner state after resume + * + * Restore the interrupt enable set register for all combiner groups since + * the state is lost when the system enters into a sleep state on suspend. + * + */ +static void combiner_resume(void) +{ + int i; + + for (i = 0; i < max_nr; i++) { + __raw_writel(combiner_data[i].irq_mask, + combiner_data[i].base + COMBINER_ENABLE_CLEAR); + __raw_writel(combiner_data[i].pm_save, + combiner_data[i].base + COMBINER_ENABLE_SET); + } +} + +#else +#define combiner_suspend NULL +#define combiner_resume NULL +#endif + +static struct syscore_ops combiner_syscore_ops = { + .suspend = combiner_suspend, + .resume = combiner_resume, +}; + static int __init combiner_of_init(struct device_node *np, struct device_node *parent) { void __iomem *combiner_base; - unsigned int max_nr = 20; combiner_base = of_iomap(np, 0); if (!combiner_base) { @@ -219,7 +271,9 @@ static int __init combiner_of_init(struct device_node *np, __func__, max_nr); } - combiner_init(combiner_base, np, max_nr); + combiner_init(combiner_base, np); + + register_syscore_ops(&combiner_syscore_ops); return 0; } diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index daccc8bdbb423fd5e6b700b4ffe6b57be0af30a1..0d3b0fe2f175e89912db13bc38e6d7235d60d835 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -409,7 +409,7 @@ static struct notifier_block mpic_cascaded_cpu_notifier = { }; #endif /* CONFIG_SMP */ -static struct irq_domain_ops armada_370_xp_mpic_irq_ops = { +static const struct irq_domain_ops armada_370_xp_mpic_irq_ops = { .map = armada_370_xp_mpic_irq_map, .xlate = irq_domain_xlate_onecell, }; diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c index a2e8c3f876cbd248ff084e755cd96a2da91729af..459bf4429d365794d4f84c19116cb0d57755c646 100644 --- a/drivers/irqchip/irq-atmel-aic5.c +++ b/drivers/irqchip/irq-atmel-aic5.c @@ -339,6 +339,15 @@ static int __init aic5_of_init(struct device_node *node, return 0; } +#define NR_SAMA5D2_IRQS 77 + +static int __init sama5d2_aic5_of_init(struct device_node *node, + struct device_node *parent) +{ + return aic5_of_init(node, parent, NR_SAMA5D2_IRQS); +} +IRQCHIP_DECLARE(sama5d2_aic5, "atmel,sama5d2-aic", sama5d2_aic5_of_init); + #define NR_SAMA5D3_IRQS 48 static int __init sama5d3_aic5_of_init(struct device_node *node, diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index 5916d6cdafa1c9b8b1909ce0aa77027e2ce2759f..e68c3b60a681ba460b24dd17499de544ea4a35fc 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -135,7 +135,7 @@ static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr, return 0; } -static struct irq_domain_ops armctrl_ops = { +static const struct irq_domain_ops armctrl_ops = { .xlate = armctrl_xlate }; diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c index ad96ebb0c7abd882075f67162ff605b8969a792b..9448e391cb710363d18df4c3079ae0504b0cbd44 100644 --- a/drivers/irqchip/irq-gic-common.c +++ b/drivers/irqchip/irq-gic-common.c @@ -24,11 +24,8 @@ int gic_configure_irq(unsigned int irq, unsigned int type, void __iomem *base, void (*sync_access)(void)) { - u32 enablemask = 1 << (irq % 32); - u32 enableoff = (irq / 32) * 4; u32 confmask = 0x2 << ((irq % 16) * 2); u32 confoff = (irq / 16) * 4; - bool enabled = false; u32 val, oldval; int ret = 0; @@ -42,17 +39,6 @@ int gic_configure_irq(unsigned int irq, unsigned int type, else if (type & IRQ_TYPE_EDGE_BOTH) val |= confmask; - /* - * As recommended by the spec, disable the interrupt before changing - * the configuration - */ - if (readl_relaxed(base + GIC_DIST_ENABLE_SET + enableoff) & enablemask) { - writel_relaxed(enablemask, base + GIC_DIST_ENABLE_CLEAR + enableoff); - if (sync_access) - sync_access(); - enabled = true; - } - /* * Write back the new configuration, and possibly re-enable * the interrupt. If we tried to write a new configuration and failed, @@ -62,9 +48,6 @@ int gic_configure_irq(unsigned int irq, unsigned int type, if (readl_relaxed(base + GIC_DIST_CONFIG + confoff) != val && val != oldval) ret = -EINVAL; - if (enabled) - writel_relaxed(enablemask, base + GIC_DIST_ENABLE_SET + enableoff); - if (sync_access) sync_access(); diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 49875adb6b44bd4c293e3f7a95d422a40aafd3b5..c52f7ba205b4c872205323868ecf0349f8174b20 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -658,6 +658,7 @@ static struct irq_chip gic_chip = { .irq_set_affinity = gic_set_affinity, .irq_get_irqchip_state = gic_irq_get_irqchip_state, .irq_set_irqchip_state = gic_irq_set_irqchip_state, + .flags = IRQCHIP_SET_TYPE_MASKED, }; #define GIC_ID_NR (1U << gic_data.rdists.id_bits) diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 01999d74bd3af32c5d05b8f14c97c07637d4571e..8d7e1c8b6d566cb385c5cc92ff67c24f40692c9a 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -324,6 +324,7 @@ static struct irq_chip gic_chip = { #endif .irq_get_irqchip_state = gic_irq_get_irqchip_state, .irq_set_irqchip_state = gic_irq_set_irqchip_state, + .flags = IRQCHIP_SET_TYPE_MASKED, }; void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq) diff --git a/drivers/irqchip/irq-hip04.c b/drivers/irqchip/irq-hip04.c index 7d6ffb5de84fce346ebd89c63c4a7a5fbb74e714..0cae45d106950783108b60c31432a9149e75f638 100644 --- a/drivers/irqchip/irq-hip04.c +++ b/drivers/irqchip/irq-hip04.c @@ -202,6 +202,7 @@ static struct irq_chip hip04_irq_chip = { #ifdef CONFIG_SMP .irq_set_affinity = hip04_irq_set_affinity, #endif + .flags = IRQCHIP_SET_TYPE_MASKED, }; static u16 hip04_get_cpumask(struct hip04_irq_data *intc) diff --git a/drivers/irqchip/irq-keystone.c b/drivers/irqchip/irq-keystone.c index 78e8b3ce5252ccac53d67debd8f5d2de05154da1..81e3cf5b9a1faa07ddbb1ab52b714aa08e0a4e09 100644 --- a/drivers/irqchip/irq-keystone.c +++ b/drivers/irqchip/irq-keystone.c @@ -131,7 +131,7 @@ static int keystone_irq_map(struct irq_domain *h, unsigned int virq, return 0; } -static struct irq_domain_ops keystone_irq_ops = { +static const struct irq_domain_ops keystone_irq_ops = { .map = keystone_irq_map, .xlate = irq_domain_xlate_onecell, }; @@ -184,8 +184,7 @@ static int keystone_irq_probe(struct platform_device *pdev) platform_set_drvdata(pdev, kirq); - irq_set_chained_handler(kirq->irq, keystone_irq_handler); - irq_set_handler_data(kirq->irq, kirq); + irq_set_chained_handler_and_data(kirq->irq, keystone_irq_handler, kirq); /* clear all source bits */ keystone_irq_writel(kirq, ~0x0); diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index 269c2354c43169307aa02438dbf38aa4b54f0dad..4400edd1a6c729129357f5df0bdb37f7e8f018db 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -746,7 +746,7 @@ static int gic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr, return 0; } -static struct irq_domain_ops gic_irq_domain_ops = { +static const struct irq_domain_ops gic_irq_domain_ops = { .map = gic_irq_domain_map, .xlate = gic_irq_domain_xlate, }; diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c index eaf0a710e98aa9bf3040572d8be15a7c8dacf06a..15c13039bba211b53a309d05ba4fd0f333364065 100644 --- a/drivers/irqchip/irq-mtk-sysirq.c +++ b/drivers/irqchip/irq-mtk-sysirq.c @@ -111,7 +111,7 @@ static int mtk_sysirq_domain_alloc(struct irq_domain *domain, unsigned int virq, return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &gic_data); } -static struct irq_domain_ops sysirq_domain_ops = { +static const struct irq_domain_ops sysirq_domain_ops = { .xlate = mtk_sysirq_domain_xlate, .alloc = mtk_sysirq_domain_alloc, .free = irq_domain_free_irqs_common, @@ -144,7 +144,7 @@ static int __init mtk_sysirq_of_init(struct device_node *node, chip_data->intpol_base = ioremap(res.start, size); if (!chip_data->intpol_base) { pr_err("mtk_sysirq: unable to map sysirq register\n"); - ret = PTR_ERR(chip_data->intpol_base); + ret = -ENXIO; goto out_free; } diff --git a/drivers/irqchip/irq-mxs.c b/drivers/irqchip/irq-mxs.c index e4acf1e3f8e3b0df693707709787202f78998c4e..04bf97b289cf4a10a6c4d4344247e6d26e4a22f5 100644 --- a/drivers/irqchip/irq-mxs.c +++ b/drivers/irqchip/irq-mxs.c @@ -90,7 +90,7 @@ static int icoll_irq_domain_map(struct irq_domain *d, unsigned int virq, return 0; } -static struct irq_domain_ops icoll_irq_domain_ops = { +static const struct irq_domain_ops icoll_irq_domain_ops = { .map = icoll_irq_domain_map, .xlate = irq_domain_xlate_onecell, }; diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c index 4ff0805fca017376ea879f918517b9d61abf5ff6..5fac9100f6cbee9f7abf144eb4dcb9efeb3aaee0 100644 --- a/drivers/irqchip/irq-nvic.c +++ b/drivers/irqchip/irq-nvic.c @@ -49,6 +49,31 @@ nvic_handle_irq(irq_hw_number_t hwirq, struct pt_regs *regs) handle_IRQ(irq, regs); } +static int nvic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs, void *arg) +{ + int i, ret; + irq_hw_number_t hwirq; + unsigned int type = IRQ_TYPE_NONE; + struct of_phandle_args *irq_data = arg; + + ret = irq_domain_xlate_onecell(domain, irq_data->np, irq_data->args, + irq_data->args_count, &hwirq, &type); + if (ret) + return ret; + + for (i = 0; i < nr_irqs; i++) + irq_map_generic_chip(domain, virq + i, hwirq + i); + + return 0; +} + +static const struct irq_domain_ops nvic_irq_domain_ops = { + .xlate = irq_domain_xlate_onecell, + .alloc = nvic_irq_domain_alloc, + .free = irq_domain_free_irqs_top, +}; + static int __init nvic_of_init(struct device_node *node, struct device_node *parent) { @@ -70,7 +95,8 @@ static int __init nvic_of_init(struct device_node *node, irqs = NVIC_MAX_IRQ; nvic_irq_domain = - irq_domain_add_linear(node, irqs, &irq_generic_chip_ops, NULL); + irq_domain_add_linear(node, irqs, &nvic_irq_domain_ops, NULL); + if (!nvic_irq_domain) { pr_warn("Failed to allocate irq domain\n"); return -ENOMEM; diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c index 9a0767b9c89da656be79048b109bda47fcd58ef6..0670ab4e3897bf612eb9e932a31ebc378cd3b803 100644 --- a/drivers/irqchip/irq-renesas-intc-irqpin.c +++ b/drivers/irqchip/irq-renesas-intc-irqpin.c @@ -347,7 +347,7 @@ static int intc_irqpin_irq_domain_map(struct irq_domain *h, unsigned int virq, return 0; } -static struct irq_domain_ops intc_irqpin_irq_domain_ops = { +static const struct irq_domain_ops intc_irqpin_irq_domain_ops = { .map = intc_irqpin_irq_domain_map, .xlate = irq_domain_xlate_twocell, }; diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c index cdf80b7794cd738e38ec956f3246ae216f9ddde1..778bd076aeea759a12fcfc49da0df952ffbc352a 100644 --- a/drivers/irqchip/irq-renesas-irqc.c +++ b/drivers/irqchip/irq-renesas-irqc.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #define IRQC_IRQ_MAX 32 /* maximum 32 interrupts per driver instance */ @@ -62,7 +61,6 @@ struct irqc_priv { void __iomem *iomem; void __iomem *cpu_int_base; struct irqc_irq irq[IRQC_IRQ_MAX]; - struct renesas_irqc_config config; unsigned int number_of_irqs; struct platform_device *pdev; struct irq_chip irq_chip; @@ -168,14 +166,13 @@ static int irqc_irq_domain_map(struct irq_domain *h, unsigned int virq, return 0; } -static struct irq_domain_ops irqc_irq_domain_ops = { +static const struct irq_domain_ops irqc_irq_domain_ops = { .map = irqc_irq_domain_map, .xlate = irq_domain_xlate_twocell, }; static int irqc_probe(struct platform_device *pdev) { - struct renesas_irqc_config *pdata = pdev->dev.platform_data; struct irqc_priv *p; struct resource *io; struct resource *irq; @@ -191,10 +188,6 @@ static int irqc_probe(struct platform_device *pdev) goto err0; } - /* deal with driver instance configuration */ - if (pdata) - memcpy(&p->config, pdata, sizeof(*pdata)); - p->pdev = pdev; platform_set_drvdata(pdev, p); @@ -251,8 +244,7 @@ static int irqc_probe(struct platform_device *pdev) irq_chip->flags = IRQCHIP_MASK_ON_SUSPEND; p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, - p->number_of_irqs, - p->config.irq_base, + p->number_of_irqs, 0, &irqc_irq_domain_ops, p); if (!p->irq_domain) { ret = -ENXIO; @@ -272,13 +264,6 @@ static int irqc_probe(struct platform_device *pdev) dev_info(&pdev->dev, "driving %d irqs\n", p->number_of_irqs); - /* warn in case of mismatch if irq base is specified */ - if (p->config.irq_base) { - if (p->config.irq_base != p->irq[0].domain_irq) - dev_warn(&pdev->dev, "irq base mismatch (%d/%d)\n", - p->config.irq_base, p->irq[0].domain_irq); - } - return 0; err3: while (--k >= 0) diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c index c8d373fcd823bd40e78f4003a77ea69aa357ff39..e96717f45ea15148adb46aefe5f74428a46b97a9 100644 --- a/drivers/irqchip/irq-s3c24xx.c +++ b/drivers/irqchip/irq-s3c24xx.c @@ -502,7 +502,7 @@ static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq, return -EINVAL; } -static struct irq_domain_ops s3c24xx_irq_ops = { +static const struct irq_domain_ops s3c24xx_irq_ops = { .map = s3c24xx_irq_map, .xlate = irq_domain_xlate_twocell, }; @@ -1228,7 +1228,7 @@ static int s3c24xx_irq_xlate_of(struct irq_domain *d, struct device_node *n, return 0; } -static struct irq_domain_ops s3c24xx_irq_ops_of = { +static const struct irq_domain_ops s3c24xx_irq_ops_of = { .map = s3c24xx_irq_map_of, .xlate = s3c24xx_irq_xlate_of, }; diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c index 64155b686081b81080fc8818fe5f9ac790e44ce5..83d6aa6464ee0b688c3b777c5eda519f0091af4e 100644 --- a/drivers/irqchip/irq-sun4i.c +++ b/drivers/irqchip/irq-sun4i.c @@ -89,7 +89,7 @@ static int sun4i_irq_map(struct irq_domain *d, unsigned int virq, return 0; } -static struct irq_domain_ops sun4i_irq_ops = { +static const struct irq_domain_ops sun4i_irq_ops = { .map = sun4i_irq_map, .xlate = irq_domain_xlate_onecell, }; diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index 1ab451729a5c5cd23936bf1b078c8a440253bfd9..888111b76ea0dd525c44ab46f68f96206be8e05d 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -132,7 +132,7 @@ static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq, return 0; } -static struct irq_domain_ops fpga_irqdomain_ops = { +static const struct irq_domain_ops fpga_irqdomain_ops = { .map = fpga_irqdomain_map, .xlate = irq_domain_xlate_onetwocell, }; diff --git a/drivers/irqchip/irq-vf610-mscm-ir.c b/drivers/irqchip/irq-vf610-mscm-ir.c index 9521057d47448a4f290df3d760e7df044968c427..f5c01cbcc73ac1376627cf31aa227a9cf5c25179 100644 --- a/drivers/irqchip/irq-vf610-mscm-ir.c +++ b/drivers/irqchip/irq-vf610-mscm-ir.c @@ -47,6 +47,7 @@ struct vf610_mscm_ir_chip_data { void __iomem *mscm_ir_base; u16 cpu_mask; u16 saved_irsprc[MSCM_IRSPRC_NUM]; + bool is_nvic; }; static struct vf610_mscm_ir_chip_data *mscm_ir_data; @@ -101,7 +102,7 @@ static void vf610_mscm_ir_enable(struct irq_data *data) writew_relaxed(chip_data->cpu_mask, chip_data->mscm_ir_base + MSCM_IRSPRC(hwirq)); - irq_chip_unmask_parent(data); + irq_chip_enable_parent(data); } static void vf610_mscm_ir_disable(struct irq_data *data) @@ -111,7 +112,7 @@ static void vf610_mscm_ir_disable(struct irq_data *data) writew_relaxed(0x0, chip_data->mscm_ir_base + MSCM_IRSPRC(hwirq)); - irq_chip_mask_parent(data); + irq_chip_disable_parent(data); } static struct irq_chip vf610_mscm_ir_irq_chip = { @@ -143,10 +144,17 @@ static int vf610_mscm_ir_domain_alloc(struct irq_domain *domain, unsigned int vi domain->host_data); gic_data.np = domain->parent->of_node; - gic_data.args_count = 3; - gic_data.args[0] = GIC_SPI; - gic_data.args[1] = irq_data->args[0]; - gic_data.args[2] = irq_data->args[1]; + + if (mscm_ir_data->is_nvic) { + gic_data.args_count = 1; + gic_data.args[0] = irq_data->args[0]; + } else { + gic_data.args_count = 3; + gic_data.args[0] = GIC_SPI; + gic_data.args[1] = irq_data->args[0]; + gic_data.args[2] = irq_data->args[1]; + } + return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &gic_data); } @@ -174,10 +182,9 @@ static int __init vf610_mscm_ir_of_init(struct device_node *node, return -ENOMEM; mscm_ir_data->mscm_ir_base = of_io_request_and_map(node, 0, "mscm-ir"); - - if (!mscm_ir_data->mscm_ir_base) { + if (IS_ERR(mscm_ir_data->mscm_ir_base)) { pr_err("vf610_mscm_ir: unable to map mscm register\n"); - ret = -ENOMEM; + ret = PTR_ERR(mscm_ir_data->mscm_ir_base); goto out_free; } @@ -199,6 +206,9 @@ static int __init vf610_mscm_ir_of_init(struct device_node *node, goto out_unmap; } + if (of_device_is_compatible(domain->parent->of_node, "arm,armv7m-nvic")) + mscm_ir_data->is_nvic = true; + cpu_pm_register_notifier(&mscm_ir_notifier_block); return 0; diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c index 54089debf2dca8b0b95baf0e31710be29d2c7c2e..d4ce331ea4a08eadbd447e61486eff0d124d842c 100644 --- a/drivers/irqchip/irq-vic.c +++ b/drivers/irqchip/irq-vic.c @@ -256,7 +256,7 @@ static void __exception_irq_entry vic_handle_irq(struct pt_regs *regs) } while (handled); } -static struct irq_domain_ops vic_irqdomain_ops = { +static const struct irq_domain_ops vic_irqdomain_ops = { .map = vic_irqdomain_map, .xlate = irq_domain_xlate_onetwocell, }; diff --git a/drivers/irqchip/irq-vt8500.c b/drivers/irqchip/irq-vt8500.c index b7af816f276933c914c89e91e8f3305d47bb0e48..0b297009b85662888fbe29af6dd18b5bd45b5151 100644 --- a/drivers/irqchip/irq-vt8500.c +++ b/drivers/irqchip/irq-vt8500.c @@ -173,7 +173,7 @@ static int vt8500_irq_map(struct irq_domain *h, unsigned int virq, return 0; } -static struct irq_domain_ops vt8500_irq_domain_ops = { +static const struct irq_domain_ops vt8500_irq_domain_ops = { .map = vt8500_irq_map, .xlate = irq_domain_xlate_onecell, }; diff --git a/drivers/irqchip/spear-shirq.c b/drivers/irqchip/spear-shirq.c index 9c145a7cb0567479f9fb7e38a0fe2f92f835df96..a45121546caff05acff16beb8d1dd2f4aa0d35c2 100644 --- a/drivers/irqchip/spear-shirq.c +++ b/drivers/irqchip/spear-shirq.c @@ -207,8 +207,7 @@ static void __init spear_shirq_register(struct spear_shirq *shirq, if (!shirq->irq_chip) return; - irq_set_chained_handler(parent_irq, shirq_handler); - irq_set_handler_data(parent_irq, shirq); + irq_set_chained_handler_and_data(parent_irq, shirq_handler, shirq); for (i = 0; i < shirq->nr_irqs; i++) { irq_set_chip_and_handler(shirq->virq_base + i, diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c index 58ea9fdd3a15c07c2331544e78e001d99f4abfcf..3591550598ad494f0f5c48db7f685a4ae97ed1dc 100644 --- a/drivers/mfd/ucb1x00-core.c +++ b/drivers/mfd/ucb1x00-core.c @@ -566,8 +566,7 @@ static int ucb1x00_probe(struct mcp *mcp) } irq_set_irq_type(ucb->irq, IRQ_TYPE_EDGE_RISING); - irq_set_handler_data(ucb->irq, ucb); - irq_set_chained_handler(ucb->irq, ucb1x00_irq); + irq_set_chained_handler_and_data(ucb->irq, ucb1x00_irq, ucb); if (pdata && pdata->gpio_base) { ucb->gpio.label = dev_name(&ucb->dev); diff --git a/include/linux/irq.h b/include/linux/irq.h index 48cb7d1aa58f00d183566119ea50789f12e6d90d..812149160d3bc5829750d5f2790ae23c4791092f 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -126,13 +126,21 @@ struct msi_desc; struct irq_domain; /** - * struct irq_data - per irq and irq chip data passed down to chip functions + * struct irq_common_data - per irq data shared by all irqchips + * @state_use_accessors: status information for irq chip functions. + * Use accessor functions to deal with it + */ +struct irq_common_data { + unsigned int state_use_accessors; +}; + +/** + * struct irq_data - per irq chip data passed down to chip functions * @mask: precomputed bitmask for accessing the chip registers * @irq: interrupt number * @hwirq: hardware interrupt number, local to the interrupt domain * @node: node index useful for balancing - * @state_use_accessors: status information for irq chip functions. - * Use accessor functions to deal with it + * @common: point to data shared by all irqchips * @chip: low level interrupt hardware access * @domain: Interrupt translation domain; responsible for mapping * between hwirq number and linux irq number. @@ -153,7 +161,7 @@ struct irq_data { unsigned int irq; unsigned long hwirq; unsigned int node; - unsigned int state_use_accessors; + struct irq_common_data *common; struct irq_chip *chip; struct irq_domain *domain; #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY @@ -166,7 +174,7 @@ struct irq_data { }; /* - * Bit masks for irq_data.state + * Bit masks for irq_common_data.state_use_accessors * * IRQD_TRIGGER_MASK - Mask for the trigger type bits * IRQD_SETAFFINITY_PENDING - Affinity setting is pending @@ -198,34 +206,36 @@ enum { IRQD_WAKEUP_ARMED = (1 << 19), }; +#define __irqd_to_state(d) ((d)->common->state_use_accessors) + static inline bool irqd_is_setaffinity_pending(struct irq_data *d) { - return d->state_use_accessors & IRQD_SETAFFINITY_PENDING; + return __irqd_to_state(d) & IRQD_SETAFFINITY_PENDING; } static inline bool irqd_is_per_cpu(struct irq_data *d) { - return d->state_use_accessors & IRQD_PER_CPU; + return __irqd_to_state(d) & IRQD_PER_CPU; } static inline bool irqd_can_balance(struct irq_data *d) { - return !(d->state_use_accessors & (IRQD_PER_CPU | IRQD_NO_BALANCING)); + return !(__irqd_to_state(d) & (IRQD_PER_CPU | IRQD_NO_BALANCING)); } static inline bool irqd_affinity_was_set(struct irq_data *d) { - return d->state_use_accessors & IRQD_AFFINITY_SET; + return __irqd_to_state(d) & IRQD_AFFINITY_SET; } static inline void irqd_mark_affinity_was_set(struct irq_data *d) { - d->state_use_accessors |= IRQD_AFFINITY_SET; + __irqd_to_state(d) |= IRQD_AFFINITY_SET; } static inline u32 irqd_get_trigger_type(struct irq_data *d) { - return d->state_use_accessors & IRQD_TRIGGER_MASK; + return __irqd_to_state(d) & IRQD_TRIGGER_MASK; } /* @@ -233,43 +243,43 @@ static inline u32 irqd_get_trigger_type(struct irq_data *d) */ static inline void irqd_set_trigger_type(struct irq_data *d, u32 type) { - d->state_use_accessors &= ~IRQD_TRIGGER_MASK; - d->state_use_accessors |= type & IRQD_TRIGGER_MASK; + __irqd_to_state(d) &= ~IRQD_TRIGGER_MASK; + __irqd_to_state(d) |= type & IRQD_TRIGGER_MASK; } static inline bool irqd_is_level_type(struct irq_data *d) { - return d->state_use_accessors & IRQD_LEVEL; + return __irqd_to_state(d) & IRQD_LEVEL; } static inline bool irqd_is_wakeup_set(struct irq_data *d) { - return d->state_use_accessors & IRQD_WAKEUP_STATE; + return __irqd_to_state(d) & IRQD_WAKEUP_STATE; } static inline bool irqd_can_move_in_process_context(struct irq_data *d) { - return d->state_use_accessors & IRQD_MOVE_PCNTXT; + return __irqd_to_state(d) & IRQD_MOVE_PCNTXT; } static inline bool irqd_irq_disabled(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_DISABLED; + return __irqd_to_state(d) & IRQD_IRQ_DISABLED; } static inline bool irqd_irq_masked(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_MASKED; + return __irqd_to_state(d) & IRQD_IRQ_MASKED; } static inline bool irqd_irq_inprogress(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_INPROGRESS; + return __irqd_to_state(d) & IRQD_IRQ_INPROGRESS; } static inline bool irqd_is_wakeup_armed(struct irq_data *d) { - return d->state_use_accessors & IRQD_WAKEUP_ARMED; + return __irqd_to_state(d) & IRQD_WAKEUP_ARMED; } @@ -280,12 +290,12 @@ static inline bool irqd_is_wakeup_armed(struct irq_data *d) */ static inline void irqd_set_chained_irq_inprogress(struct irq_data *d) { - d->state_use_accessors |= IRQD_IRQ_INPROGRESS; + __irqd_to_state(d) |= IRQD_IRQ_INPROGRESS; } static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) { - d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS; + __irqd_to_state(d) &= ~IRQD_IRQ_INPROGRESS; } static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) @@ -462,6 +472,8 @@ extern void handle_nested_irq(unsigned int irq); extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg); #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY +extern void irq_chip_enable_parent(struct irq_data *data); +extern void irq_chip_disable_parent(struct irq_data *data); extern void irq_chip_ack_parent(struct irq_data *data); extern int irq_chip_retrigger_hierarchy(struct irq_data *data); extern void irq_chip_mask_parent(struct irq_data *data); @@ -523,6 +535,15 @@ irq_set_chained_handler(unsigned int irq, irq_flow_handler_t handle) __irq_set_handler(irq, handle, 1, NULL); } +/* + * Set a highlevel chained flow handler and its data for a given IRQ. + * (a chained handler is automatically enabled and set to + * IRQ_NOREQUEST, IRQ_NOPROBE, and IRQ_NOTHREAD) + */ +void +irq_set_chained_handler_and_data(unsigned int irq, irq_flow_handler_t handle, + void *data); + void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set); static inline void irq_set_status_flags(unsigned int irq, unsigned long set) @@ -630,6 +651,23 @@ static inline u32 irq_get_trigger_type(unsigned int irq) return d ? irqd_get_trigger_type(d) : 0; } +static inline int irq_data_get_node(struct irq_data *d) +{ + return d->node; +} + +static inline struct cpumask *irq_get_affinity_mask(int irq) +{ + struct irq_data *d = irq_get_irq_data(irq); + + return d ? d->affinity : NULL; +} + +static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d) +{ + return d->affinity; +} + unsigned int arch_dynirq_lower_bound(unsigned int from); int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index a113a8dc7438bb577ce4112bdd7e193bb7c4381e..c52d1480f272448a18ae5ea8400328c82f0c76da 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -17,7 +17,7 @@ struct pt_regs; /** * struct irq_desc - interrupt descriptor - * @irq_data: per irq and chip data passed down to chip functions + * @irq_common_data: per irq and chip data passed down to chip functions * @kstat_irqs: irq stats per cpu * @handle_irq: highlevel irq-events handler * @preflow_handler: handler called before the flow handler (currently used by sparc) @@ -47,6 +47,7 @@ struct pt_regs; * @name: flow handler name for /proc/interrupts output */ struct irq_desc { + struct irq_common_data irq_common_data; struct irq_data irq_data; unsigned int __percpu *kstat_irqs; irq_flow_handler_t handle_irq; diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 676d7306a3609cc9aaccb090f71000f965f0e3bd..744ac0ec98eb2c9e094f8ebdcfd71aebcdd32026 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -258,6 +258,10 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr, /* V2 interfaces to support hierarchy IRQ domains. */ extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, unsigned int virq); +extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, + irq_hw_number_t hwirq, struct irq_chip *chip, + void *chip_data, irq_flow_handler_t handler, + void *handler_data, const char *handler_name); #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY extern struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *parent, unsigned int flags, unsigned int size, @@ -281,10 +285,6 @@ extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, irq_hw_number_t hwirq, struct irq_chip *chip, void *chip_data); -extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, - irq_hw_number_t hwirq, struct irq_chip *chip, - void *chip_data, irq_flow_handler_t handler, - void *handler_data, const char *handler_name); extern void irq_domain_reset_irq_data(struct irq_data *irq_data); extern void irq_domain_free_irqs_common(struct irq_domain *domain, unsigned int virq, diff --git a/include/linux/platform_data/irq-renesas-irqc.h b/include/linux/platform_data/irq-renesas-irqc.h deleted file mode 100644 index 3ae17b3e00ed653cbe6b0b59fda644fd484750ff..0000000000000000000000000000000000000000 --- a/include/linux/platform_data/irq-renesas-irqc.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Renesas IRQC Driver - * - * Copyright (C) 2013 Magnus Damm - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef __IRQ_RENESAS_IRQC_H__ -#define __IRQ_RENESAS_IRQC_H__ - -struct renesas_irqc_config { - unsigned int irq_base; -}; - -#endif /* __IRQ_RENESAS_IRQC_H__ */ diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 55016b2151f3b3d66db0ed2b838de481fbf99d57..27f4332c7f84ea8b3d7ec8bb3466a64f225a8487 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -719,15 +719,9 @@ void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc) } void -__irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, - const char *name) +__irq_do_set_handler(struct irq_desc *desc, irq_flow_handler_t handle, + int is_chained, const char *name) { - unsigned long flags; - struct irq_desc *desc = irq_get_desc_buslock(irq, &flags, 0); - - if (!desc) - return; - if (!handle) { handle = handle_bad_irq; } else { @@ -749,13 +743,13 @@ __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, * right away. */ if (WARN_ON(is_chained)) - goto out; + return; /* Try the parent */ irq_data = irq_data->parent_data; } #endif if (WARN_ON(!irq_data || irq_data->chip == &no_irq_chip)) - goto out; + return; } /* Uninstall? */ @@ -774,11 +768,40 @@ __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, irq_settings_set_nothread(desc); irq_startup(desc, true); } -out: +} + +void +__irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, + const char *name) +{ + unsigned long flags; + struct irq_desc *desc = irq_get_desc_buslock(irq, &flags, 0); + + if (!desc) + return; + + __irq_do_set_handler(desc, handle, is_chained, name); irq_put_desc_busunlock(desc, flags); } EXPORT_SYMBOL_GPL(__irq_set_handler); +void +irq_set_chained_handler_and_data(unsigned int irq, irq_flow_handler_t handle, + void *data) +{ + unsigned long flags; + struct irq_desc *desc = irq_get_desc_buslock(irq, &flags, 0); + + if (!desc) + return; + + __irq_do_set_handler(desc, handle, 1, NULL); + desc->irq_data.handler_data = data; + + irq_put_desc_busunlock(desc, flags); +} +EXPORT_SYMBOL_GPL(irq_set_chained_handler_and_data); + void irq_set_chip_and_handler_name(unsigned int irq, struct irq_chip *chip, irq_flow_handler_t handle, const char *name) @@ -875,6 +898,34 @@ void irq_cpu_offline(void) } #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY +/** + * irq_chip_enable_parent - Enable the parent interrupt (defaults to unmask if + * NULL) + * @data: Pointer to interrupt specific data + */ +void irq_chip_enable_parent(struct irq_data *data) +{ + data = data->parent_data; + if (data->chip->irq_enable) + data->chip->irq_enable(data); + else + data->chip->irq_unmask(data); +} + +/** + * irq_chip_disable_parent - Disable the parent interrupt (defaults to mask if + * NULL) + * @data: Pointer to interrupt specific data + */ +void irq_chip_disable_parent(struct irq_data *data) +{ + data = data->parent_data; + if (data->chip->irq_disable) + data->chip->irq_disable(data); + else + data->chip->irq_mask(data); +} + /** * irq_chip_ack_parent - Acknowledge the parent interrupt * @data: Pointer to interrupt specific data diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c index d5d0f7345c54504ac7e03f14394f282c86614a92..74d90a75426881881cc7e42ff3fcdba91efd76c9 100644 --- a/kernel/irq/devres.c +++ b/kernel/irq/devres.c @@ -104,7 +104,7 @@ int devm_request_any_context_irq(struct device *dev, unsigned int irq, return -ENOMEM; rc = request_any_context_irq(irq, handler, irqflags, devname, dev_id); - if (rc) { + if (rc < 0) { devres_free(dr); return rc; } @@ -113,7 +113,7 @@ int devm_request_any_context_irq(struct device *dev, unsigned int irq, dr->dev_id = dev_id; devres_add(dev, dr); - return 0; + return rc; } EXPORT_SYMBOL(devm_request_any_context_irq); diff --git a/kernel/irq/dummychip.c b/kernel/irq/dummychip.c index 2feb6feca0cc96dff8514c45750542386db5ec53..326a67f2410bf95c8f4299ef03de214b8d529964 100644 --- a/kernel/irq/dummychip.c +++ b/kernel/irq/dummychip.c @@ -42,6 +42,7 @@ struct irq_chip no_irq_chip = { .irq_enable = noop, .irq_disable = noop, .irq_ack = ack_bad, + .flags = IRQCHIP_SKIP_SET_WAKE, }; /* diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c index 61024e8abdeffdeff717d389ddbe8fd99110532c..15b370daf23446d3a6b5213cbeac4d9559fb095d 100644 --- a/kernel/irq/generic-chip.c +++ b/kernel/irq/generic-chip.c @@ -360,7 +360,7 @@ static struct lock_class_key irq_nested_lock_class; int irq_map_generic_chip(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw_irq) { - struct irq_data *data = irq_get_irq_data(virq); + struct irq_data *data = irq_domain_get_irq_data(d, virq); struct irq_domain_chip_generic *dgc = d->gc; struct irq_chip_generic *gc; struct irq_chip_type *ct; @@ -405,8 +405,7 @@ int irq_map_generic_chip(struct irq_domain *d, unsigned int virq, else data->mask = 1 << idx; - irq_set_chip_and_handler(virq, chip, ct->handler); - irq_set_chip_data(virq, gc); + irq_domain_set_info(d, virq, hw_irq, chip, gc, ct->handler, NULL, NULL); irq_modify_status(virq, dgc->irq_flags_to_clear, dgc->irq_flags_to_set); return 0; } diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index b93d434e70bdc63882071ea699b63b2a849e3400..4834ee828c41e8ee9dd8e8e4fb15e03e66c037e1 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -168,27 +168,27 @@ irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags) */ static inline void irqd_set_move_pending(struct irq_data *d) { - d->state_use_accessors |= IRQD_SETAFFINITY_PENDING; + __irqd_to_state(d) |= IRQD_SETAFFINITY_PENDING; } static inline void irqd_clr_move_pending(struct irq_data *d) { - d->state_use_accessors &= ~IRQD_SETAFFINITY_PENDING; + __irqd_to_state(d) &= ~IRQD_SETAFFINITY_PENDING; } static inline void irqd_clear(struct irq_data *d, unsigned int mask) { - d->state_use_accessors &= ~mask; + __irqd_to_state(d) &= ~mask; } static inline void irqd_set(struct irq_data *d, unsigned int mask) { - d->state_use_accessors |= mask; + __irqd_to_state(d) |= mask; } static inline bool irqd_has_set(struct irq_data *d, unsigned int mask) { - return d->state_use_accessors & mask; + return __irqd_to_state(d) & mask; } static inline void kstat_incr_irqs_this_cpu(unsigned int irq, struct irq_desc *desc) @@ -197,6 +197,11 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq, struct irq_desc *d __this_cpu_inc(kstat.irqs_sum); } +static inline int irq_desc_get_node(struct irq_desc *desc) +{ + return irq_data_get_node(&desc->irq_data); +} + #ifdef CONFIG_PM_SLEEP bool irq_pm_check_wakeup(struct irq_desc *desc); void irq_pm_install_action(struct irq_desc *desc, struct irqaction *action); diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 99793b9b6d23a5bfb4c1b4c2794134b06cdc5132..4afc457613ddf7da1bd845733e68ec22af099ec0 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -59,16 +59,10 @@ static void desc_smp_init(struct irq_desc *desc, int node) #endif } -static inline int desc_node(struct irq_desc *desc) -{ - return desc->irq_data.node; -} - #else static inline int alloc_masks(struct irq_desc *desc, gfp_t gfp, int node) { return 0; } static inline void desc_smp_init(struct irq_desc *desc, int node) { } -static inline int desc_node(struct irq_desc *desc) { return 0; } #endif static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, @@ -76,6 +70,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, { int cpu; + desc->irq_data.common = &desc->irq_common_data; desc->irq_data.irq = irq; desc->irq_data.chip = &no_irq_chip; desc->irq_data.chip_data = NULL; @@ -299,7 +294,7 @@ static void free_desc(unsigned int irq) unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); - desc_set_defaults(irq, desc, desc_node(desc), NULL); + desc_set_defaults(irq, desc, irq_desc_get_node(desc), NULL); raw_spin_unlock_irqrestore(&desc->lock, flags); } @@ -619,7 +614,7 @@ unsigned int kstat_irqs(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); int cpu; - int sum = 0; + unsigned int sum = 0; if (!desc || !desc->kstat_irqs) return 0; @@ -639,7 +634,7 @@ unsigned int kstat_irqs(unsigned int irq) */ unsigned int kstat_irqs_usr(unsigned int irq) { - int sum; + unsigned int sum; irq_lock_sparse(); sum = kstat_irqs(irq); diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 7fac311057b806e7e6ba6c4634fac7151ace347b..8c3577fef78c4ee50cd6912d1cc87202e7d17cf2 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -830,10 +830,12 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain, { struct irq_data *irq_data; - irq_data = kzalloc_node(sizeof(*irq_data), GFP_KERNEL, child->node); + irq_data = kzalloc_node(sizeof(*irq_data), GFP_KERNEL, + irq_data_get_node(child)); if (irq_data) { child->parent_data = irq_data; irq_data->irq = child->irq; + irq_data->common = child->common; irq_data->node = child->node; irq_data->domain = domain; } @@ -1232,6 +1234,27 @@ struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, return (irq_data && irq_data->domain == domain) ? irq_data : NULL; } +/** + * irq_domain_set_info - Set the complete data for a @virq in @domain + * @domain: Interrupt domain to match + * @virq: IRQ number + * @hwirq: The hardware interrupt number + * @chip: The associated interrupt chip + * @chip_data: The associated interrupt chip data + * @handler: The interrupt flow handler + * @handler_data: The interrupt flow handler data + * @handler_name: The interrupt handler name + */ +void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, + irq_hw_number_t hwirq, struct irq_chip *chip, + void *chip_data, irq_flow_handler_t handler, + void *handler_data, const char *handler_name) +{ + irq_set_chip_and_handler_name(virq, chip, handler, handler_name); + irq_set_chip_data(virq, chip_data); + irq_set_handler_data(virq, handler_data); +} + static void irq_domain_check_hierarchy(struct irq_domain *domain) { } diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index b1c7e8f46bfb2f1019f90846448aeda5628df10f..f9744853b656976bc4fdc49e006464a08a7d5395 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -363,7 +363,7 @@ static int setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask) { struct cpumask *set = irq_default_affinity; - int node = desc->irq_data.node; + int node = irq_desc_get_node(desc); /* Excludes PER_CPU and NO_BALANCE interrupts */ if (!irq_can_set_affinity(irq)) diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c index dd203e276b0775043ddfa4fcdde79cb38baf0b4e..37ddb7bda6517ac7cc8df9d9c63e31513d55f73e 100644 --- a/kernel/irq/migration.c +++ b/kernel/irq/migration.c @@ -12,16 +12,16 @@ void irq_move_masked_irq(struct irq_data *idata) if (likely(!irqd_is_setaffinity_pending(&desc->irq_data))) return; + irqd_clr_move_pending(&desc->irq_data); + /* * Paranoia: cpu-local interrupts shouldn't be calling in here anyway. */ - if (!irqd_can_balance(&desc->irq_data)) { + if (irqd_is_per_cpu(&desc->irq_data)) { WARN_ON(1); return; } - irqd_clr_move_pending(&desc->irq_data); - if (unlikely(cpumask_empty(desc->pending_mask))) return; diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 474de5cb394d3c2007135c788a5c40c973e34c6a..7bf1f1bbb7fa5620a270ca1d42d9d54e54b61288 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -124,7 +124,7 @@ static void msi_domain_free(struct irq_domain *domain, unsigned int virq, irq_domain_free_irqs_top(domain, virq, nr_irqs); } -static struct irq_domain_ops msi_domain_ops = { +static const struct irq_domain_ops msi_domain_ops = { .alloc = msi_domain_alloc, .free = msi_domain_free, .activate = msi_domain_activate, diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c index 5204a6d1b9854feecfc2fff678e1d2b8eef33c42..d22786a6dbde92eec5cc6b17a198cf309328b27a 100644 --- a/kernel/irq/pm.c +++ b/kernel/irq/pm.c @@ -123,6 +123,8 @@ void suspend_device_irqs(void) unsigned long flags; bool sync; + if (irq_settings_is_nested_thread(desc)) + continue; raw_spin_lock_irqsave(&desc->lock, flags); sync = suspend_device_irq(desc, irq); raw_spin_unlock_irqrestore(&desc->lock, flags); @@ -163,6 +165,8 @@ static void resume_irqs(bool want_early) if (!is_early && want_early) continue; + if (irq_settings_is_nested_thread(desc)) + continue; raw_spin_lock_irqsave(&desc->lock, flags); resume_irq(desc, irq); diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index df2f4642d1e7bd3892bcc4e5ecc29153a7f132af..0e97c142ce402b0492c876b909c40ac10d40c779 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -241,7 +241,7 @@ static int irq_node_proc_show(struct seq_file *m, void *v) { struct irq_desc *desc = irq_to_desc((long) m->private); - seq_printf(m, "%d\n", desc->irq_data.node); + seq_printf(m, "%d\n", irq_desc_get_node(desc)); return 0; }