26 #include <asm/isc.h>
206 static uint64_t isc_to_isc_bits(int isc)  in isc_to_isc_bits()  argument
208 	return (0x80 >> isc) << 24;  in isc_to_isc_bits()
211 static inline u32 isc_to_int_word(u8 isc)  in isc_to_int_word()  argument
213 	return ((u32)isc << 27) | 0x80000000;  in isc_to_int_word()
347 static inline int isc_to_irq_type(unsigned long isc)  in isc_to_irq_type()  argument
349 	return IRQ_PEND_IO_ISC_0 - isc;  in isc_to_irq_type()
1175 	u32 isc;  in __deliver_io()  local
1181 	isc = irq_type_to_isc(irq_type);  in __deliver_io()
1182 	isc_list = &fi->lists[isc];  in __deliver_io()
1215 	if (gi->origin && gisa_tac_ipm_gisc(gi->origin, isc)) {  in __deliver_io()
1220 		VCPU_EVENT(vcpu, 4, "%s isc %u", "deliver: I/O (AI/gisa)", isc);  in __deliver_io()
1222 		io.io_int_word = isc_to_int_word(isc);  in __deliver_io()
1701 						  int isc, u32 schid)  in get_io_int()  argument
1704 	struct list_head *isc_list = &fi->lists[FIRQ_LIST_IO_ISC_0 + isc];  in get_io_int()
1718 			clear_bit(isc_to_irq_type(isc), &fi->pending_irqs);  in get_io_int()
1730 	int isc;  in get_top_io_int()  local
1732 	for (isc = 0; isc <= MAX_ISC && !inti; isc++) {  in get_top_io_int()
1733 		if (isc_mask & isc_to_isc_bits(isc))  in get_top_io_int()
1734 			inti = get_io_int(kvm, isc, schid);  in get_top_io_int()
1743 	int isc;  in get_top_gisa_isc()  local
1752 		isc = __fls(active_mask) ^ (BITS_PER_LONG - 1);  in get_top_gisa_isc()
1753 		if (gisa_tac_ipm_gisc(gi->origin, isc))  in get_top_gisa_isc()
1754 			return isc;  in get_top_gisa_isc()
1755 		clear_bit_inv(isc, &active_mask);  in get_top_gisa_isc()
1763  * subclasses as designated by the isc mask in cr6 and the schid (if != 0).
1768  * out adapter interrupts on the same isc. Linux does not do
1778 	int isc;  in kvm_s390_get_io_int()  local
1782 	isc = get_top_gisa_isc(kvm, isc_mask, schid);  in kvm_s390_get_io_int()
1783 	if (isc < 0)  in kvm_s390_get_io_int()
1792 	if (int_word_to_isc(inti->io.io_int_word) <= isc) {  in kvm_s390_get_io_int()
1794 		gisa_set_ipm_gisc(gi->origin, isc);  in kvm_s390_get_io_int()
1801 		tmp_inti->io.io_int_word = isc_to_int_word(isc);  in kvm_s390_get_io_int()
1806 		gisa_set_ipm_gisc(gi->origin, isc);  in kvm_s390_get_io_int()
1900 	int isc;  in __inject_io()  local
1903 	isc = int_word_to_isc(inti->io.io_int_word);  in __inject_io()
1912 		VM_EVENT(kvm, 4, "%s isc %1u", "inject: I/O (AI/gisa)", isc);  in __inject_io()
1913 		gisa_set_ipm_gisc(gi->origin, isc);  in __inject_io()
1933 	list = &fi->lists[FIRQ_LIST_IO_ISC_0 + isc];  in __inject_io()
1935 	set_bit(isc_to_irq_type(isc), &fi->pending_irqs);  in __inject_io()
2479 	adapter->isc = adapter_info.isc;  in register_io_adapter()
2580 	if (req.isc > MAX_ISC)  in modify_ais_mode()
2583 	trace_kvm_s390_modify_ais_mode(req.isc,  in modify_ais_mode()
2584 				       (fi->simm & AIS_MODE_MASK(req.isc)) ?  in modify_ais_mode()
2585 				       (fi->nimm & AIS_MODE_MASK(req.isc)) ?  in modify_ais_mode()
2592 		fi->simm &= ~AIS_MODE_MASK(req.isc);  in modify_ais_mode()
2593 		fi->nimm &= ~AIS_MODE_MASK(req.isc);  in modify_ais_mode()
2596 		fi->simm |= AIS_MODE_MASK(req.isc);  in modify_ais_mode()
2597 		fi->nimm &= ~AIS_MODE_MASK(req.isc);  in modify_ais_mode()
2614 		.parm64 = isc_to_int_word(adapter->isc),  in kvm_s390_inject_airq()
2622 	if (fi->nimm & AIS_MODE_MASK(adapter->isc)) {  in kvm_s390_inject_airq()
2623 		trace_kvm_s390_airq_suppressed(adapter->id, adapter->isc);  in kvm_s390_inject_airq()
2628 	if (!ret && (fi->simm & AIS_MODE_MASK(adapter->isc))) {  in kvm_s390_inject_airq()
2629 		fi->nimm |= AIS_MODE_MASK(adapter->isc);  in kvm_s390_inject_airq()
2630 		trace_kvm_s390_modify_ais_mode(adapter->isc,  in kvm_s390_inject_airq()
3234  * kvm_s390_gisc_register - register a guest ISC
3245  * Returns: the nonspecific ISC (NISC) the gib alert mechanism
3248  *          -ERANGE in case the guest ISC is invalid
3272  * kvm_s390_gisc_unregister - unregister a guest ISC
3283  * Returns: the nonspecific ISC (NISC) the gib alert mechanism
3286  *          -ERANGE in case the guest ISC is invalid
3287  *          -EINVAL in case the guest ISC is not registered
3344 static void aen_process_gait(u8 isc)  in aen_process_gait()  argument
3363 				zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, isc,  in aen_process_gait()
3391 		aen_process_gait(info->isc);  in gib_alert_irq_handler()
3434 	gib_alert_irq.isc = nisc;  in kvm_s390_gib_init()