static inline void s3c2443_irq_demux(unsigned int irq, unsigned int len) { unsigned int subsrc, submsk; unsigned int end; struct irq_desc *mydesc; /* read the current pending interrupts, and the mask * for what it is available */ subsrc = __raw_readl(S3C2410_SUBSRCPND); submsk = __raw_readl(S3C2410_INTSUBMSK); subsrc &= ~submsk; subsrc >>= (irq - S3C2410_IRQSUB(0)); subsrc &= (1 << len)-1; end = len + irq; mydesc = irq_desc + irq; for (; irq < end && subsrc; irq++) { if (subsrc & 1) desc_handle_irq(irq, mydesc); mydesc++; subsrc >>= 1; } }
static inline void s3c2443_irq_demux(unsigned int irq, unsigned int len) { unsigned int subsrc, submsk; unsigned int end; subsrc = __raw_readl(S3C2410_SUBSRCPND); submsk = __raw_readl(S3C2410_INTSUBMSK); subsrc &= ~submsk; subsrc >>= (irq - S3C2410_IRQSUB(0)); subsrc &= (1 << len)-1; end = len + irq; for (; irq < end && subsrc; irq++) { if (subsrc & 1) generic_handle_irq(irq); subsrc >>= 1; } }
static struct s3c_irq_intc * __init s3c24xx_init_intc(struct device_node *np, struct s3c_irq_data *irq_data, struct s3c_irq_intc *parent, unsigned long address) { struct s3c_irq_intc *intc; void __iomem *base = (void *)0xf6000000; /* static mapping */ int irq_num; int irq_start; int ret; intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL); if (!intc) return ERR_PTR(-ENOMEM); intc->irqs = irq_data; if (parent) intc->parent = parent; /* select the correct data for the controller. * Need to hard code the irq num start and offset * to preserve the static mapping for now */ switch (address) { case 0x4a000000: pr_debug("irq: found main intc\n"); intc->reg_pending = base; intc->reg_mask = base + 0x08; intc->reg_intpnd = base + 0x10; irq_num = 32; irq_start = S3C2410_IRQ(0); break; case 0x4a000018: pr_debug("irq: found subintc\n"); intc->reg_pending = base + 0x18; intc->reg_mask = base + 0x1c; irq_num = 29; irq_start = S3C2410_IRQSUB(0); break; case 0x4a000040: pr_debug("irq: found intc2\n"); intc->reg_pending = base + 0x40; intc->reg_mask = base + 0x48; intc->reg_intpnd = base + 0x50; irq_num = 8; irq_start = S3C2416_IRQ(0); break; case 0x560000a4: pr_debug("irq: found eintc\n"); base = (void *)0xfd000000; intc->reg_mask = base + 0xa4; intc->reg_pending = base + 0xa8; irq_num = 24; irq_start = S3C2410_IRQ(32); break; default: pr_err("irq: unsupported controller address\n"); ret = -EINVAL; goto err; } /* now that all the data is complete, init the irq-domain */ s3c24xx_clear_intc(intc); intc->domain = irq_domain_add_legacy(np, irq_num, irq_start, 0, &s3c24xx_irq_ops, intc); if (!intc->domain) { pr_err("irq: could not create irq-domain\n"); ret = -EINVAL; goto err; } set_handle_irq(s3c24xx_handle_irq); return intc; err: kfree(intc); return ERR_PTR(ret); }