1 // SPDX-License-Identifier: GPL-2.0-or-later
6 ** Copyright (C) 1999 David Mosberger-Tang <[email protected]>
7 ** Copyright (C) 2001,2004 Grant Grundler <grundler@parisc-linux.org>
13 ** -grant (1/12/2001)
110 	/* REVISIT : does PM *know* this CPU isn't available? */  in halt_processor()
130 		ops = p->pending_ipi;  in ipi_interrupt()
131 		p->pending_ipi = 0;  in ipi_interrupt()
171 				smp_debug(100, KERN_DEBUG "CPU%d is alive!\n", this_cpu);  in ipi_interrupt()
204 	p->pending_ipi |= 1 << op;  in ipi_send()
205 	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);  in ipi_send()
295 	current->active_mm = &init_mm;  in smp_cpu_init()
296 	BUG_ON(current->mm);  in smp_cpu_init()
313 	WARN_ON(((unsigned long)(PAGE0->mem_pdc_hi) << 32  in smp_callin()
314 			| PAGE0->mem_pdc) != pdce_proc);  in smp_callin()
346 		if (desc && desc->kstat_irqs)  in smp_boot_one_cpu()
347 			*per_cpu_ptr(desc->kstat_irqs, cpuid) = (struct irqstat) { };  in smp_boot_one_cpu()
367 	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);  in smp_boot_one_cpu()
372 	** From the PA-RISC 2.0 Firmware Architecture Reference Specification:  in smp_boot_one_cpu()
378 	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);  in smp_boot_one_cpu()
390 			goto alive ;  in smp_boot_one_cpu()
396 	return -1;  in smp_boot_one_cpu()
398 alive:  in smp_boot_one_cpu()
400 	smp_debug(100, KERN_DEBUG "SMP: CPU:%d came alive after %ld _us\n",  in smp_boot_one_cpu()
440 		return -EIO;  in __cpu_up()
442 	return cpu_online(cpu) ? 0 : -EIO;  in __cpu_up()
464 		pr_info("CPU %d is now promoted to time-keeper master\n", time_keeper_id);  in __cpu_disable()
490  * called on the thread which is asking for a CPU to be shutdown -