16 #include <linux/irq.h>
30 		.irq		= _irq,			\
52 		.start = 0x1cd41ffc,
59 	.name		= "rtc-ds1216",
66 		.start = 0x18000000,
71 		.start = 0x1b000000,
76 		.start = 0x1ff00000,
81 		.start = 27,
98 		.start = 0x19000000,
103 		.start = 26,
149  * This contains the irq mask for both 8259A irq controllers,
160 	unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;  in sni_rm200_disable_8259A_irq()  local
163 	mask = 1 << irq;  in sni_rm200_disable_8259A_irq()
166 	if (irq & 8)  in sni_rm200_disable_8259A_irq()
175 	unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;  in sni_rm200_enable_8259A_irq()  local
178 	mask = ~(1 << irq);  in sni_rm200_enable_8259A_irq()
181 	if (irq & 8)  in sni_rm200_enable_8259A_irq()
188 static inline int sni_rm200_i8259A_irq_real(unsigned int irq)  in sni_rm200_i8259A_irq_real()  argument
191 	int irqmask = 1 << irq;  in sni_rm200_i8259A_irq_real()
193 	if (irq < 8) {  in sni_rm200_i8259A_irq_real()
213 	unsigned int irqmask, irq = d->irq - RM200_I8259A_IRQ_BASE;  in sni_rm200_mask_and_ack_8259A()  local
216 	irqmask = 1 << irq;  in sni_rm200_mask_and_ack_8259A()
219 	 * Lightweight spurious IRQ detection. We do not want  in sni_rm200_mask_and_ack_8259A()
220 	 * to overdo spurious IRQ handling - it's usually a sign  in sni_rm200_mask_and_ack_8259A()
225 	 * usually resulting from the 8259A-1|2 PICs) occur  in sni_rm200_mask_and_ack_8259A()
226 	 * even if the IRQ is masked in the 8259A. Thus we  in sni_rm200_mask_and_ack_8259A()
228 	 * quite slow i8259A_irq_real() call for every IRQ.  in sni_rm200_mask_and_ack_8259A()
238 	if (irq & 8) {  in sni_rm200_mask_and_ack_8259A()
241 		writeb(0x60+(irq & 7), rm200_pic_slave + PIC_CMD);  in sni_rm200_mask_and_ack_8259A()
246 		writeb(0x60+irq, rm200_pic_master + PIC_CMD);  in sni_rm200_mask_and_ack_8259A()
253 	 * this is the slow path - should happen rarely.  in sni_rm200_mask_and_ack_8259A()
255 	if (sni_rm200_i8259A_irq_real(irq))  in sni_rm200_mask_and_ack_8259A()
257 		 * oops, the IRQ _is_ in service according to the  in sni_rm200_mask_and_ack_8259A()
258 		 * 8259A - not spurious, go handle it.  in sni_rm200_mask_and_ack_8259A()
265 		 * At this point we can be sure the IRQ is spurious,  in sni_rm200_mask_and_ack_8259A()
266 		 * let's ACK and report it. [once per IRQ]  in sni_rm200_mask_and_ack_8259A()
270 			       "spurious RM200 8259A interrupt: IRQ%d.\n", irq);  in sni_rm200_mask_and_ack_8259A()
275 		 * Theoretically we do not have to handle this IRQ,  in sni_rm200_mask_and_ack_8259A()
284 	.name		= "RM200-XT-PIC",
297 	int irq;  in sni_rm200_i8259_irq()  local
303 	irq = readb(rm200_pic_master + PIC_CMD) & 7;  in sni_rm200_i8259_irq()
304 	if (irq == PIC_CASCADE_IR) {  in sni_rm200_i8259_irq()
310 		irq = (readb(rm200_pic_slave + PIC_CMD) & 7) + 8;  in sni_rm200_i8259_irq()
313 	if (unlikely(irq == 7)) {  in sni_rm200_i8259_irq()
323 			irq = -1;  in sni_rm200_i8259_irq()
328 	return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq;  in sni_rm200_i8259_irq()
362 	.start = 0x16000020,
369 	.start = 0x160000a0,
374 /* ISA irq handler */
377 	int irq;  in sni_rm200_i8259A_irq_handler()  local
379 	irq = sni_rm200_i8259_irq();  in sni_rm200_i8259A_irq_handler()
380 	if (unlikely(irq < 0))  in sni_rm200_i8259A_irq_handler()
383 	do_IRQ(irq);  in sni_rm200_i8259A_irq_handler()
423 	unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);  in enable_rm200_irq()
430 	unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);  in disable_rm200_irq()
446 	int irq;  in sni_rm200_hwint()  local
454 		irq = ffs(stat & mask & 0x1f);  in sni_rm200_hwint()
456 		if (likely(irq > 0))  in sni_rm200_hwint()
457 			do_IRQ(irq + SNI_RM200_INT_START - 1);  in sni_rm200_hwint()