1 // SPDX-License-Identifier: GPL-2.0-or-later
36 /* Store the CPU id (not the logical number) */
41 void sb1250_mask_irq(int cpu, int irq)  in sb1250_mask_irq()  argument
47 	cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_mask_irq()
50 	____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_mask_irq()
55 void sb1250_unmask_irq(int cpu, int irq)  in sb1250_unmask_irq()  argument
61 	cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_unmask_irq()
64 	____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_unmask_irq()
73 	int i = 0, old_cpu, cpu, int_on;  in sb1250_set_affinity()  local
74 	unsigned int irq = d->irq;  in sb1250_set_affinity()
80 	/* Convert logical CPU to physical CPU */  in sb1250_set_affinity()
81 	cpu = cpu_logical_map(i);  in sb1250_set_affinity()
83 	/* Protect against other affinity changers and IMR manipulation */  in sb1250_set_affinity()
86 	/* Swizzle each CPU's IMR (but leave the IP selection alone) */  in sb1250_set_affinity()
97 	sb1250_irq_owner[irq] = cpu;  in sb1250_set_affinity()
99 		/* unmask for the new CPU */  in sb1250_set_affinity()
100 		cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_set_affinity()
103 		____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +  in sb1250_set_affinity()
114 	unsigned int irq = d->irq;  in disable_sb1250_irq()
121 	unsigned int irq = d->irq;  in enable_sb1250_irq()
129 	unsigned int irq = d->irq;  in ack_sb1250_irq()
136 	 * deliver the interrupts to all CPUs (which makes affinity  in ack_sb1250_irq()
145 			int cpu;  in ack_sb1250_irq()  local
147 			cpu = cpu_logical_map(i);  in ack_sb1250_irq()
149 			cpu = i;  in ack_sb1250_irq()
152 			 * Clear for all CPUs so an affinity switch  in ack_sb1250_irq()
156 				     IOADDR(A_IMR_REGISTER(cpu,  in ack_sb1250_irq()
162 		 * Pass 2, the LDT world may be edge-triggered, but  in ack_sb1250_irq()
164 		 * level-sensitive, the EOI is required.  in ack_sb1250_irq()
173 	.name = "SB1250-IMR",
204  * all interrupts to a single CPU; we should probably route
205  * PCI and LDT to one cpu and everything else to the other
208  * On the second cpu, everything is set to IP5, which is
211  * can do cross-cpu function calls, as required by SMP
244 	 * inter-cpu messages  in arch_init_irq()
273 	unsigned int cpu = smp_processor_id();  in dispatch_ip2()  local
279 	 * to detect which CPU we're on, now that smp_affinity is supported.  in dispatch_ip2()
281 	mask = __raw_readq(IOADDR(A_IMR_REGISTER(cpu,  in dispatch_ip2()
284 		do_IRQ(fls64(mask) - 1);  in dispatch_ip2()
289 	unsigned int cpu = smp_processor_id();  in plat_irq_dispatch()  local
295 	 * trashed--since were running in -o32, the calling routing never saves  in plat_irq_dispatch()
304 	if (pending & CAUSEF_IP7) /* CPU performance counter interrupt */  in plat_irq_dispatch()
307 		do_IRQ(K_INT_TIMER_0 + cpu);	/* sb1250_timer_interrupt() */  in plat_irq_dispatch()